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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 18868. Отображено 100.
12-01-2012 дата публикации

Area Sensor and Display Apparatus Provided With An Area Sensor

Номер: US20120007090A1
Автор: Hajime Kimura, Jun Koyama, Masato Yonezawa, Shunpei Yamazaki, Yu Yamazaki
Принадлежит: Semiconductor Energy Laboratory Co Ltd

An area sensor of the present invention has a function of displaying an image in a sensor portion by using light-emitting elements and a reading function using photoelectric conversion devices. Therefore, an image read in the sensor portion can be displayed thereon without separately providing an electronic display on the area sensor. Furthermore, a photoelectric conversion layer of a photodiode according to the present invention is made of an amorphous silicon film and an N-type semiconductor layer and a P-type semiconductor layer are made of a polycrystalline silicon film. The amorphous silicon film is formed to be thicker than the polycrystalline silicon film. As a result, the photodiode according to the present invention can receive more light.

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Номер записи: 1
19-01-2012 дата публикации

Display device and electronic device including the same

Номер: US20120012847A1
Автор: Jun Koyama, Shunpei Yamazaki
Принадлежит: Semiconductor Energy Laboratory Co Ltd

One embodiment of the present invention provides a highly reliably display device in which a high mobility is achieved in an oxide semiconductor. A first oxide component is formed over a base component. Crystal growth proceeds from a surface toward an inside of the first oxide component by a first heat treatment, so that a first oxide crystal component is formed in contact with at least part of the base component. A second oxide component is formed over the first oxide crystal component. Crystal growth is performed by a second heat treatment using the first oxide crystal component as a seed, so that a second oxide crystal component is formed. Thus, a stacked oxide material is formed. A transistor with a high mobility is formed using the stacked oxide material and a driver circuit is formed using the transistor.

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Номер записи: 2
19-01-2012 дата публикации

Display, Scan Driving Apparatus for the Display, and Driving Method Thereof

Номер: US20120013588A1
Автор: Kyung-hoon Chung
Принадлежит: Samsung Mobile Display Co Ltd

A scan driving apparatus includes a first driving apparatus connected to a plurality of scan lines and a second driving apparatus connected to the plurality of scan lines. Wherein when one of the first driving apparatus and the second driving apparatus is in a scan enable state such that the plurality of scan lines are applied with a scan signal, the other is in a floating state such that the output terminal is floated. The scan driving apparatus according to the present invention has the function of a shift register for sequentially applying the scan signals and may apply a scan signal of a different waveform which is additionally required. The output terminal of the scan driving apparatus is floated in a period in which a different waveform is necessary such that a scan signal having the different waveform may be applied without influence of the scan signal, thereby realizing a complicated scan signal.

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Номер записи: 3
09-02-2012 дата публикации

Display substrate and display apparatus having the same

Номер: US20120032937A1
Автор: Bon-Yong Koo
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A display substrate includes a base substrate including a display area and a peripheral area, a pixel disposed on the display area, wherein the pixel includes; a pixel transistor connected to a gate line and a data line which cross each other, and a pixel electrode connected to the pixel transistor and the pixel electrode, and a gate driving circuit disposed on the peripheral area, wherein the gate driving circuit outputs a gate signal to the gate line and comprises a plurality of stages, an n-th stage of the gate driving circuit including a plurality of circuit transistors and a boosting capacitor including a first capacitor and a second capacitor, the plurality of circuit transistors and the first capacitor being disposed on a first area and the second capacitor being disposed on a second area of the peripheral area positioned between the first area and the display area.

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Номер записи: 4
01-03-2012 дата публикации

Display device

Номер: US20120049184A1
Автор: Atsushi Umezaki, Hiroyuki Miyake
Принадлежит: Semiconductor Energy Laboratory Co Ltd

To suppress fluctuation in the threshold voltage of a transistor, to reduce the number of connections of a display panel and a driver IC, to achieve reduction in power consumption of a display device, and to achieve increase in size and high definition of the display device. A gate electrode of a transistor which easily deteriorates is connected to a wiring to which a high potential is supplied through a first switching transistor and a wiring to which a low potential is supplied through a second switching transistor; a clock signal is input to a gate electrode of the first switching transistor; and an inverted clock signal is input to a gate electrode of the second switching transistor. Thus, the high potential and the low potential are alternately applied to the gate electrode of the transistor which easily deteriorates.

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Номер записи: 5
07-06-2012 дата публикации

Display device, scan driver for a display device, and a driving method thereof

Номер: US20120139962A1
Автор: Bo-Yong Chung, Dong-Beom Lee
Принадлежит: Samsung Mobile Display Co Ltd

A scan driver may include: a first scan driving block, outputting a second clock signal to a first output terminal according to an input signal, in synchronization with a first clock signal; and a second scan driving block, outputting the first clock signal according to the output signal of the first scan driving block to a second output terminal, in synchronization with the second clock signal, wherein the first scan driving block and the second scan driving block simultaneously output an entire clock signal, according to a level of a simultaneous light emission control signal.

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Номер записи: 6
14-06-2012 дата публикации

Scanning signal line drive circuit and display device including same

Номер: US20120146969A1
Автор: Kenichi Ishii, Masahiko Nakamizo, Masashi Yonemaru, Mayuko Sakamoto
Принадлежит: Sharp Corp

A gate driver is implemented that includes an easily testable shift register to improve panel yields. In a monolithic gate driver including a shift register that operates based on 4-phase clock signals, each stage of the shift register is provided with an inter-stage connecting wiring line for receiving a clock signal other than clock signals received from a clock signal trunk wiring line, from a different stage than the stage; and a contact that connects a wiring line formed on the stage to the inter-stage connecting wiring line. The shift register is grouped every four consecutive stages. Markings formed of different numbers of planar-view circular-shaped structures are formed on bistable circuits of four stages included in each group such that the same type of marking appears every four stages.

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Номер записи: 7
28-06-2012 дата публикации

Electro-luminescence pixel, panel with the pixel, and device and method for driving the panel

Номер: US20120162052A1
Автор: In Hwan Kim, Jin Chul Choi, Jin Hyoung Kim, Sang Keun Lee, Seung Chan Byun
Принадлежит: LG Display Co Ltd

An electro-luminescence display having a plurality of pixels is disclosed. One of the pixels of the electro-luminescence display includes an electro-luminescence diode electrically connected between first and second voltage sources; first and second thin film transistors adjusting an amount of current flowing to the electro-luminescence diode; and a control circuit complementarily operating the first and second thin film transistors in an active mode and a refresh mode.

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Номер записи: 8
18-10-2012 дата публикации

Light emitting device and method of driving the light emitting device

Номер: US20120261665A1
Автор: Aya Anzai, Keisuke Miyagawa, Mitsuaki Osame, Satoshi Seo, Shunpei Yamazaki, Yoshifumi Tanada
Принадлежит: Semiconductor Energy Laboratory Co Ltd

A light emitting device that achieves long life, and which is capable of performing high duty drive, by suppressing initial light emitting element deterioration is provided. Reverse bias application to an EL element ( 109 ) is performed one row at a time by forming a reverse bias electric power source line ( 112 ) and a reverse bias TFT ( 108 ). Reverse bias application can therefore be performed in synchronous with operations for write-in of an image signal, light emission, erasure, and the like. Reverse bias application therefore becomes possible while maintaining a duty equivalent to that of a conventional driving method.

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Номер записи: 9
18-04-2013 дата публикации

Organic light-emitting display device

Номер: US20130093652A1
Автор: Jin Hyoung Kim, Kyoung Sik Choi, Seung Tae Kim, Ui Jeong
Принадлежит: LG Display Co Ltd

An organic light-emitting display device includes: an organic light-emitting panel comprising a plurality of pixel regions, each pixel region comprising a scan line and a data line crossing each other, each pixel region further comprising an organic light-emission element and a drive transistor configured to drive the organic light emission element; and a circuit configured to sense a threshold voltage of the drive transistor in a sensing interval and control a light emission of the organic light emission element within the pixel region in a display interval.

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Номер записи: 10
23-05-2013 дата публикации

Scan driver, display device comprising the same, and driving method of scan driver

Номер: US20130127809A1
Автор: Sang-myeon Han
Принадлежит: Samsung Display Co Ltd

A scan driver, a display device including the same, and a driving method of a scan driver are provided. The scan driver includes a signal generator configured to generate and output first signals to output lines sequentially and/or to generate and output second signals to the output lines simultaneously, and a switching unit configured to receive the first signals and/or the second signals from the signal generator and to select a plurality of first scan lines connected to a first group pixels among the plurality of pixels included in a display unit or a plurality of second scan lines connected to a second group pixel different from the first group pixels among the plurality of pixels to output the plurality of first signals or the plurality of second signals as corresponding scan signals.

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Номер записи: 11
23-05-2013 дата публикации

Lighting period setting method, display panel driving method, backlight driving method, lighting condition setting device, semiconductor device, display panel and electronic equipment

Номер: US20130127929A1
Автор: Hironobu Abe, Hiroshi Hasegawa, Teppei Isobe
Принадлежит: Sony Corp

Disclosed herein is a lighting period setting method for a display panel which permits control of the peak luminance level by controlling the total lighting period length which is the sum of all lighting periods per field period, the lighting period setting method including the steps of, calculating the average luminance level across the screen based on input image data, determining light emission mode based on the calculated average luminance level, and setting the number, arrangement and lengths of lighting periods per field period according to the setting conditions defined for the determined light emission mode so as to provide the peak luminance level which is set according to the input image data.

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Номер записи: 12
06-06-2013 дата публикации

ORGANIC LIGHT EMITTING DIODE DISPLAY DEVICE AND METHOD OF DRIVING THE SAME

Номер: US20130141316A1
Автор: LEE Jung-Min, SIM Jae-Ho
Принадлежит: LG DISPLAY CO., LTD.

An organic light emitting diode (OLED) display device and a method of driving the same are provided. A time point at which each of transistors is turned on is controlled without using an additional transistor so that a node connected to a source electrode of a driver transistor can be floated, and a node connected to a gate electrode of the driver transistor can be initialized to an initialization voltage level. Thus, initialization characteristics can be improved to enhance degradation of response characteristics and luminance, and a threshold voltage of the driver transistor and occurrence of a ripple at a high-potential voltage terminal can be compensated. 1. An organic light emitting diode (OLED) display device comprising:a first transistor connected to a high-potential voltage terminal and a second node;a switching transistor connected to a data line and the second node;a second transistor connected to a drain electrode of a driver transistor and a first node;an emission control transistor connected to the drain electrode of the driver transistor and one electrode of an OLED;a third transistor connected to the one electrode of the OLED and configured to reduce a voltage applied to the one electrode of the OLED; anda first capacitor connected between the high-potential voltage terminal and the first node.2. The display device of claim 1 , wherein a gate electrode of the first transistor and a gate electrode of the emission control transistor are connected to an emission control line claim 1 , and the first transistor and the emission control transistor are turned on in response to an emission control signal transmitted through the emission control line claim 1 , andwherein a gate electrode of the switching transistor and gate electrodes of the second and third transistors are connected to a scan line, and the switching transistor and the second and third transistors are turned on in response to a scan signal transmitted through the scan line.3. The display ...

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Номер записи: 13
06-06-2013 дата публикации

Voltage summing buffer, digital-to-analog converter and source driver of display device including the same

Номер: US20130141474A1
Автор: Ki-Duk Kim
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A digital-to-analog converter includes a first decoder, a second decoder and a voltage summing buffer. The first decoder receives upper bits of a digital signal and upper reference voltages to output an upper voltage corresponding to the upper bits. The second decoder configured to receive lower bits of the digital signal and lower reference voltages to output a lower differential voltage corresponding to the lower bits. The voltage summing buffer generates an output voltage based on the upper voltage and the lower differential voltage, such that the output voltage corresponds to the digital signal including the upper bits and the lower bits.

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Номер записи: 14
13-06-2013 дата публикации

Display driving method, driving module and display apparatus

Номер: US20130147856A1
Автор: Cheng-Hsu Chou, Hong-Ru Guo, Ming-Chun Tseng
Принадлежит: Innocom Technology Shenzhen Co Ltd, Innolux Corp

A display driving method comprises the steps of: determining a first target-level voltage and a second target-level voltage of a signal of the scan line; determining a first switch time and a second switch time according to an RC loading of the scan line; determining at least one first precharge-level voltage and at least one second precharge-level voltage according to the first target-level voltage, the second target-level voltage, the first switch time, and the second switch time; and outputting the first precharge-level voltage, the first target-level voltage, the second precharge-level voltage, and the second target-level voltage to drive the display panel, wherein the first precharge-level voltage is switched to the first target-level voltage after the first switch time, and the second precharge-level voltage is switched to the second target-level voltage after the second switch time.

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Номер записи: 15
20-06-2013 дата публикации

Organic light emitting display device

Номер: US20130155033A1
Автор: Ga-Young Kim, Guang-Hai Jin, Jae-Beom Choi, June-Woo Lee, Kwan-Wook Jung, Moo-Jin Kim
Принадлежит: Samsung Mobile Display Co Ltd

An organic light emitting display device includes a pixel unit including a plurality of pixels formed in regions where a plurality of scan lines and a plurality of data lines cross each other, a first scan driving unit detecting a defect of the plurality of pixels by sequentially applying a first test signal to the plurality of scan lines, and a second scan driving unit detecting a defect of the plurality of pixels by simultaneously applying a second test signal to the plurality of scan lines.

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Номер записи: 16
25-07-2013 дата публикации

IMAGE DISPLAY DEVICE

Номер: US20130187554A1
Автор: EBISUNO Kouhei, ONO Shinya
Принадлежит: Panasonic Corporation

An image display device includes: an organic EL element, a first electrostatic capacitor, a driving transistor having a gate connected to a first electrode of the first electrostatic capacitor and a source connected to an anode of the organic EL element, a second electrostatic capacitor having an electrode connected to a second electrode of the first electrostatic capacitor, a negative power source line which determines the potential of a cathode of the organic EL element, and a scanning line driving circuit which controls a first switching transistor, a second switching transistor, and a third switching transistor. In a non-light-emitting period, the scanning line driving circuit sets, during a period from a start of a reset period to an end of the non-light-emitting period, a fixed voltage corresponding to the potential of the negative power source line to the source electrode of the driving transistor. 1. An image display device comprising:a light-emitting element;a first capacitor which holds a voltage;a driving transistor having a gate electrode connected to a first electrode of the first capacitor, and a source electrode connected to a first electrode of the light-emitting element, the driving transistor causing the light-emitting element to emit light by applying, to the light-emitting element, a drain current corresponding to the voltage held by the first capacitor;a second capacitor having a first electrode connected to a second electrode of the first capacitor;a first power source line connected to a drain electrode of the driving transistor, for determining a potential of the drain electrode of the driving transistor;a second power source line connected to a second electrode of the light-emitting element, for determining a potential of the second electrode of the light-emitting element;a third power source line connected to the first electrode of the first capacitor, for supplying a first reference voltage defining a voltage value of the first electrode ...

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Номер записи: 17
25-07-2013 дата публикации

Semiconductor device and driving method of the same

Номер: US20130187701A1
Автор: Hajime Kimura
Принадлежит: Semiconductor Energy Laboratory Co Ltd

In the case of reducing an effect of variations in current characteristics of transistors by inputting a signal current to a transistor in a pixel, a potential of a wiring is detected by using a precharge circuit. In the case where there is a difference between a predetermined potential and the potential of the wiring, a charge is supplied to the wiring to perform a precharge by charging rapidly. When the potential of the wiring reaches the predetermined potential, the supply of charge is stopped and a signal current only is supplied. Thus, a precharge is performed only in a period until the potential of the wiring reaches the predetermined potential, therefore, a precharge can be performed for an optimal period.

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Номер записи: 18
22-08-2013 дата публикации

Scanning drive circuit and display device including the same

Номер: US20130215098A1
Автор: Seiichiro Jinta, Takao Tanikame
Принадлежит: Sony Corp

Disclosed herein is a display device, including display elements two-dimensionally disposed in a matrix; scanning lines, initialization control lines, and display control lines extending in a first direction; data lines extending in a second direction different from the first direction; and a scanning drive circuit.

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Номер записи: 19
29-08-2013 дата публикации

EMISSION DRIVING UNIT, EMISSION DRIVER, AND ORGANIC LIGHT EMITTING DISPLAY DEVICE HAVING THE SAME

Номер: US20130222352A1
Автор: Jeong Jin-Tae
Принадлежит: Samsung Display Co., Ltd.

In one aspect, an emission driving unit and an organic light emitting diode (OLED) display having the same are disclosed. The emission driving unit includes an input signal generating circuit that receives a FLM signal according to a first clock signal, receives a second clock signal according to the FLM signal, and outputs a sequential input signal. The emission driving unit also includes an inverter circuit that receives the FLM signal according to the first clock signal, and that inverts the FLM signal to generate an inverter output signal. The emission driving unit also includes an output switching circuit that outputs a first voltage having a logic high level or a second voltage having a logic low level as an emission signal in response to the inverter output signal. The input signal generating circuit, the inverter circuit, and the output switching circuit are implemented by transistors of the same kind. 1. An emission driving unit , comprising:an input signal generating circuit configured to receive a frame line mark (FLM) signal according to a first clock signal, to receive a second clock signal according to the FLM signal, and to output a sequential input signal;an inverter circuit configured to receive the FLM signal according to the first clock signal, and to invert the FLM signal to generate an inverter output signal; andan output switching circuit configured to output a first voltage having a logic high level or a second voltage having a logic low level as an emission signal in response to the inverter output signal,wherein the input signal generating circuit, the inverter circuit, and the output switching circuit are implemented by transistors of only N-type or P-type.2. The unit of claim 1 , wherein the emission signal is substantially an inverted version of the FLM signal.3. The unit of claim 2 , wherein the input signal generating circuit claim 2 , the inverter circuit claim 2 , and the output switching circuit are implemented with N-channel metal- ...

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Номер записи: 20
12-09-2013 дата публикации

Display apparatus and display-apparatus driving method

Номер: US20130235015A1
Автор: Seiichiro Jinta, Takao Tanikame
Принадлежит: Sony Corp

Disclosed herein is a driving method and display apparatus, the display apparatus including light emitting units, scan lines, data lines, a driving circuit provided for each of the light emitting units to serve as a circuit having a signal writing transistor, a device driving transistor, a capacitor and a first switch circuit, and a light emitting device.

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Номер записи: 21
26-09-2013 дата публикации

OLED-Based Display Device Including a Pixel Circuit, and Driving Methods Thereof

Номер: US20130249875A1
Автор: CHEN Lien-Hsiang, GUO Gong-Chen, TSENG Ming-Chun
Принадлежит:

An organic light emitting diode (OLED) based display device including a pixel circuit that includes: an OLED to be connected to a first power terminal, a transistor connected to the OLED, a first capacitor connected to the transistor, a second capacitor connected to the first capacitor and the transistor, a first switch receiving a data signal and a scanning signal and connected to the first capacitor, a second switch connected to the transistor and receiving an enable signal, a third switch connected to the transistor and receiving a compensation signal, and a switching unit configured to transmit one of the enable signal, voltage at a terminal of the first capacitor, a reference signal and the scanning signal to a terminal of the transistor when operated in a conductive state. 1. An organic liquid emitting diode (OLED) based display device comprising a pixel circuit that includes:an organic light emitting diode (OLED) having an anode and a cathode to be connected electrically to a first power terminal;a transistor having a first terminal, a second terminal that is connected electrically to said anode of said OLED, and a control terminal;a first capacitor having a first terminal and a second terminal that is connected electrically to said control terminal of said transistor;a second capacitor having a first terminal that is connected electrically to said first terminal of said first capacitor, and a second terminal that is connected electrically to said second terminal of said transistor;a first switch having a first terminal that is disposed to receive a data signal, a second terminal that is connected electrically to said first terminal of said first capacitor, and a control terminal that is disposed to receive a scanning signal, said first switch being operable to switch between a conductive state and a non-conductive state according to the scanning signal received by said first switch;a second switch having a first terminal that is to be connected electrically ...

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Номер записи: 22
03-10-2013 дата публикации

ORGANIC LIGHT EMITTING DISPLAY DEVICE

Номер: US20130257831A1
Автор: Kim Binn, Lee Bu Yeol, Yoo Juhn Suk
Принадлежит: LG DISPLAY CO., LTD.

An organic light emitting display device includes: a plurality of pixel regions. Each of the pixel regions includes: a first transistor configured to apply a data voltage on a first adjacent data line to a first node in response to a scan signal on the primary scan line; a second transistor configured to apply the data voltage on the first adjacent data line to the first node in response to a sensing signal on the secondary scan line; and a third transistor configured to detect a sensing voltage and apply the sensing voltage to a second adjacent data line, The data driver compares the sensing voltage and the data voltage and compensates for the data voltage of next frame, and the scan signal and the sensing signal are generated in different intervals of a single frame. 1. An organic light-emitting display device comprising:a plurality of primary scan lines and a plurality of secondary scan lines;a plurality of data lines connected to a data driver and arranged in such as to cross the primary and secondary scan lines; anda plurality of pixel regions defined by the scan lines and the data lines crossing each other and configured to each include,a first transistor configured to apply a data voltage on a first adjacent data line to a first node in response to a scan signal on the primary scan line,a drive transistor configured to generate a drive current corresponding to the data voltage at the first node,an organic light emission element configured to emit light by the drive current,a second transistor configured to apply the data voltage on the first adjacent data line to the first node in response to a sensing signal on the secondary scan line, anda third transistor configured to detect a sensing voltage and apply the sensing voltage to a second adjacent data line, in response to the sensing signal on the secondary scan line,wherein the data driver compares the sensing voltage and the data voltage and compensates for the data voltage of next frame, and the scan ...

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Номер записи: 23
21-11-2013 дата публикации

Shift register circuit, display panel, and electronic apparatus

Номер: US20130308743A1
Автор: Seiichiro Jinta
Принадлежит: Sony Corp

Disclosed herein is a shift register circuit that is formed on an insulating substrate with thin film transistors having channels of the same conductivity type and includes shift stages, each of the shift stages including: a first thin film transistor; a second thin film transistor; a 3(1)-th thin film transistor; a 3(2)-th thin film transistor; a 4(1)-th thin film transistor; a 4(2)-th thin film transistor; a fifth thin film transistor; and a sixth thin film transistor.

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Номер записи: 24
12-12-2013 дата публикации

PIXEL DRIVING CIRCUIT, DRIVING METHOD THEREOF AND DISPLAY PANEL

Номер: US20130328848A1
Автор: Chao Ching-Yan, Shih Li-Wei
Принадлежит: AU OPTRONICS CORP.

A pixel driving circuit includes a first switch, a capacitor, a second switch and at least one organic light emitting diode. The first switch includes a first end for receiving data voltage, a control end for receiving a first scan signal, and a second end for outputting the data voltage. The capacitor includes a first end coupled to the second end of the first switch, and a second end. The second switch includes a first end coupled to the second end of the first switch, a control end for receiving a second scan signal, and a second end. The at least one organic light emitting diode includes a first end coupled to the second end of the second switch, and a second end coupled to the second end of the capacitor. 1. A pixel driving circuit , comprising:a first switch, having a first end for receiving a data voltage, a control end for receiving a first scan signal, and a second end for outputting the data voltage;a capacitor having a first end coupled to the second end of the first switch, and a second end;a second switch having a first end coupled to the second end of the first switch, a control end for receiving a second scan signal, and a second end; andat least one organic light emitting diode (OLED), having a first end coupled to the second end of the second switch, and a second end.2. The pixel driving circuit of claim 1 , wherein both the second end of the capacitor and the second end of the at least one OLED are coupled to a reference voltage source.3. The pixel driving circuit of claim 1 , further comprising:a third switch, having a first end coupled to a reference voltage source, a control end for receiving a third scan signal, and a second end coupled to the second end of the at least one OLED and the second end of the capacitor.4. The pixel driving circuit of claim 1 , further comprising:a fourth switch, having a first end coupled to the second end of the capacitor and a reference voltage source, a control end for receiving a fourth scan signal, and a second ...

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Номер записи: 25
26-12-2013 дата публикации

Stage Circuit and Organic Light Emitting Display Device Using the Same

Номер: US20130342584A1
Автор: Dong-Hwi Kim, Hwa-Young Song, Ji-Hye Kim, Min-Kyu Woo
Принадлежит: Samsung Display Co Ltd

An organic light emitting display device having a stage circuit capable of creating a scan signal and a light emitting control signal. The stage circuit includes a control unit controlling a first node and a second node corresponding to signals of a first input terminal, a third input terminal, and a fourth input terminal, a first output unit supplying a light emitting control signal to a second output terminal corresponding to voltages at the first node and the second node, and a second output unit supplying a scan signal having different polarity than that of the light emitting control signal to a first output terminal corresponding to a signal of a second input terminal and voltages at the first node and the second node.

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Номер записи: 26
02-01-2014 дата публикации

SCAN DRIVING UNIT AND ORGANIC LIGHT EMITTING DISPLAY DEVICE HAVING THE SAME

Номер: US20140002424A1
Автор: Ahn Jeong-Keun, LEE Hae-Yeon
Принадлежит:

A scan driving unit and OLED display device including the unit are disclosed. In one aspect, the unit includes a first pre-decoder block that receives upper scan-line selection signals for selecting one of upper scan-lines that are arranged in an upper display region of a display panel, and outputs first logic signals based on the upper scan-line selection signals. It also includes a second pre-decoder block that receives lower scan-line selection signals for selecting one of lower scan-lines that are arranged in a lower display region of the display panel, and outputs second logic signals based on the lower scan-line selection signals. It further includes a first final-decoder block coupled between the upper display region and the first pre-decoder block that selects one of the upper scan-lines based on the first logic signals, and a second final-decoder block coupled between the lower display region and the second pre-decoder block that selects one of the lower scan-lines based on the second logic signals. 1. A scan driving unit , comprising:a first pre-decoder block configured to receive upper scan-line selection signals for selecting one of upper scan-lines that are arranged in an upper display region of a display panel of an organic light emitting display device and configured to output first logic signals based on the upper scan-line selection signals;a second pre-decoder block configured to receive lower scan-line selection signals for selecting one of lower scan-lines that are arranged in a lower display region of the display panel and configured to output second logic signals based on the lower scan-line selection signals;a first final-decoder block coupled between the upper display region and the first pre-decoder block and configured to select one of the upper scan-lines based on the first logic signals; anda second final-decoder block coupled between the lower display region and the second pre-decoder block and configured to select one of the lower scan- ...

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Номер записи: 27
30-01-2014 дата публикации

PIXEL AND ORGANIC LIGHT EMITTING DISPLAY USING THE SAME

Номер: US20140028733A1
Автор: Kim Chang-Yeop, Kim Ok-Byoung, KIM Se-Ho, Lee Jae-Sic
Принадлежит: Samsung Display Co., Ltd.

A pixel capable of stably compensating for a threshold voltage is disclosed. The pixel includes an organic light emitting diode (OLED), a driving transistor having a gate electrode, a source electrode, and first and second drain electrodes. The pixel also has a plurality of second transistors serially coupled between the first drain electrode and a gate electrode of the driving transistor, and a node electrically coupled to the second drain electrode and to each of the second transistors. 1. A pixel , comprising:an organic light emitting diode (OLED); a gate electrode,', 'a source electrode, and', 'first and second drain electrodes;, 'a driving transistor comprisinga plurality of second transistors serially coupled between the first drain electrode and the gate electrode of the driving transistor; anda node electrically coupled to the second transistors and to the second drain electrode of the driving transistor.2. The pixel as claimed in claim 1 , wherein the second transistors comprise a first second transistor and a second second transistor.3. The pixel as claimed in claim 1 , wherein the current path between the source electrode and the first drain electrode is shorter than the current path between the source electrode and the second drain electrode.4. The pixel as claimed in claim 1 , wherein the driving transistor comprises:a substrate;a semiconductor layer formed on the substrate and including a source region, a first drain region separated from the source region by a first current path, and a second drain region separated from the source region by a second current path;a gate electrode insulated from the semiconductor layer by a gate insulating layer;a source electrode coupled to the source region of the semiconductor layer;a first drain electrode coupled to the first drain region of the semiconductor layer; anda second drain electrode coupled to the second drain region of the semiconductor layer.5. The pixel as claimed in claim 4 , wherein the second ...

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Номер записи: 28
30-01-2014 дата публикации

Circuit and method for driving an array of light emitting pixels

Номер: US20140028738A1
Автор: Arokia Nathan, Peyman Servati, Shahin Jafarabadiashtiani, Yuriy Vygranenko
Принадлежит: Ignis Innovation Inc

A technique for driving a column of pixels that include light emitting elements. The technique incorporates feedback data provided from feedback data sources connected to the data line and to feedback line of the array, pixel driving circuit with feedback path. The technique can also include block of the reference elements for input signal corrections.

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Номер записи: 29
06-02-2014 дата публикации

COMPENSATION OF THRESHOLD VOLTAGE IN DRIVING TRANSISTOR OF ORGANIC LIGHT EMITTING DIODE DISPLAY DEVICE

Номер: US20140035799A1
Автор: Bae NaYoung, SHIN Minjae, YOON Joongsun
Принадлежит: LG DISPLAY CO., LTD.

The organic light emitting diode display device comprising a display panel a plurality of pixels arranged in a matrix form, each of the pixels comprising: a driving TFT including a gate electrode coupled to a first node, a source electrode coupled to a second node, and a drain electrode coupled to a high-potential voltage line; an organic light emitting diode including an anode coupled to the second node and a cathode coupled to a low-potential voltage line; a first TFT supplying a data voltage to the first node in response to a scan signal; a initialization control circuit initializing the first node to a first reference voltage and the second node or the third node to a second reference voltage in response to a initialization signal and an emission signal; and capacitors. 1. An organic light emitting diode display device comprising a plurality of pixels arranged in a matrix form , each of the pixels comprising:a driving thin film transistor (TFT) including a gate electrode coupled to a first node, a source electrode coupled to a second node, and a drain electrode coupled to a high-potential voltage line;an organic light emitting diode between the second node and a low-potential voltage line;a first TFT configured to connect a data line to the first node during a data voltage supply period of a frame period;an initialization control circuit coupled between the first node and a first reference voltage line supplying a first reference voltage, the initialization control circuit further connected to a second node, a third node and a second reference voltage line supplying a second reference voltage, the initialization control circuit configured to initialize the first node to the first reference voltage, and the second and third nodes to a second reference voltage during an initialization period of the frame period preceding the data voltage supply period; anda first capacitor coupled between the first node and the third node, the first capacitor configured to store a ...

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Номер записи: 30
06-02-2014 дата публикации

INCORPORATION OF PASSIVES AND FINE PITCH THROUGH VIA FOR PACKAGE ON PACKAGE

Номер: US20140035892A1
Автор: GOUSEV Evgeni Petrovich, Kim Jonghae, Lai Kwan-Yu, Shenoy Ravindra V., STEPHANOU Philip Jason, Velez Mario Francisco
Принадлежит: QUALCOMM MEMS Technologies, Inc.

This disclosure provides systems, methods and apparatus for glass via bars that can be used in compact three-dimensional packages, including package-on-packages (PoPs). The glass via bars can provide high density electrical interconnections in the PoPs. In some implementations, the glass via bars can include integrated passive components. Packaging methods employing glass via bars are also provided. 1. A package-on-package comprising:a bottom package vertically integrated with a second package, whereinthe bottom package includes a first die and a glass via bar;the second package includes a second die; andthe first die is in electrical communication with the second die through the glass via bar.2. The package-on-package of wherein the first die is selected from a logic die claim 1 , a memory die claim 1 , a microelectromechanical systems (MEMS) die claim 1 , a radio frequency (RF) die claim 1 , a power integrated circuit (IC) die claim 1 , a sensor die claim 1 , and an actuator die.3. The package-on-package of wherein the second die is selected from a logic die claim 1 , a memory die claim 1 , a microelectromechanical systems (MEMS) die claim 1 , a radio frequency (RF) die claim 1 , a power integrated circuit (IC) die claim 1 , a sensor die claim 1 , and an actuator die.4. The package-on-package of claim 1 , wherein the first die and the second die are is different types of dies.5. The package-on-package of claim 4 , wherein the first die is a logic die and the second die is a memory die.6. The package-on-package of claim 5 , wherein the memory die attached to a substrate by flip-chip attachment.7. The package-on-package of claim 5 , wherein the memory die is a through-silicon via (TSV) memory die.8. The package-on-package of claim 1 , further comprising a third package vertically integrated with the bottom package and the second package such that the second package is disposed between the bottom package and the third package.9. The package-on-package of claim 1 , ...

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Номер записи: 31
13-02-2014 дата публикации

LIGHT EMITTING DEVICE, ELECTRONIC APPARATUS, AND METHOD OF DRIVING LIGHT EMITTING DEVICE

Номер: US20140043219A1
Автор: OTA Hitoshi
Принадлежит: SEIKO EPSON CORPORATION

A light emitting device includes a pixel circuit and a data line provided between a first substrate and a second substrate opposed to each other. The pixel circuit includes a first circuit and a second circuit, the first circuit includes a first light emitting element and a first driving transistor connected in series to each other, and a first switching element provided between a gate of the first transistor and the data line, and outgoing light of the first light emitting element is output from the first substrate side. The second circuit includes a second light emitting element and a second driving transistor connected in series to each other, and a first switching element provided between a gate of the second driving transistor and the data line, and outgoing light of the second light emitting element is output from the second substrate side. 1. A light emitting device comprising:a plurality of first scanning lines that extend in a first direction;a plurality of second scanning lines that are provided corresponding to the plurality of first scanning lines, respectively;a plurality of data lines that extend in a second direction different from the first direction;a plurality of pixel circuits provided corresponding to intersections of the plurality of first scanning lines and the plurality of second scanning lines and the plurality of data lines; anda driving circuit that drives the pixel circuits,wherein each of the pixel circuits is provided on a substrate, and includes a first circuit and a second circuit provided corresponding to a first supply line,wherein the first circuit includes a first light emitting element, a first driving transistor connected between the first light emitting element and the first supply line, and a first switching element provided between a gate of the first driving transistor and the data line to electrically connect both when selecting the first scanning line, and outgoing light of the first light emitting element is output from a ...

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Номер записи: 32
13-03-2014 дата публикации

PIXEL, DISPLAY DEVICE COMPRISING THE SAME AND DRIVING METHOD THEREOF

Номер: US20140071028A1
Автор: HAN Sang-Myeon
Принадлежит: Samsung Display Co., Ltd.

An organic light emitting diode (OLED) display device is disclosed. In one aspect, the device includes a plurality of pixels. Each of the pixels includes 1) a driving transistor controlling a driving current supplied to an OLED, 2) a first capacitor connected to a first electrode of the driving transistor and 3) a switching transistor connecting the first capacitor and the data line. Each pixel further includes a first light emission transistor transmitting a first power source voltage to the first electrode of the driving transistor and a second capacitor connected between the gate electrode of the driving transistor and the first power source voltage. When the first power source voltage is applied to the first electrode of the driving transistor, the corresponding scan signal of a gate-on voltage is supplied and thus the corresponding data voltage is stored in the first capacitor. 1. An organic light emitting diode (OLED) display device comprising:a plurality of pixels, each including 1) a driving transistor configured to control a driving current supplied to an OLED, 2) a first capacitor operatively connected to a first electrode of the driving transistor, 3) a switching transistor configured to connect the first capacitor and a data line, and 4) a first light emission transistor configured to transmit a first power source voltage to the first electrode of the driving transistor,wherein, when light emission of the OLED with application of the first power source voltage through the first light emission transistor to the first electrode of the driving transistor is simultaneously occurred in each of the pixels, a scan signal of a gate-on voltage is configured to be applied to the corresponding pixel and thus the corresponding data voltage is configured to be stored in the first capacitor.2. The display device of claim 1 , wherein each of the pixels further comprises a compensation transistor configured to connect a gate electrode and a second electrode of the ...

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Номер записи: 33
13-03-2014 дата публикации

Shift register

Номер: US20140072092A1
Автор: Yong-Ho Jang
Принадлежит: LG Display Co Ltd

A shift register includes a plurality of stages for sequentially outputting A-scan pulses and B-scan pulses. At least one of the stages includes an A-sub-stage for controlling a voltage at an A-set node and a voltage at at least one A-reset node in response to an external A-control signal and generating an A-carry pulse based on the voltage at the A-set node, the voltage at the A-reset node and any one A-clock pulse, a B-sub-stage for controlling a voltage at a B-set node and a voltage at at least one B-reset node in response to an external B-control signal and generating a B-carry pulse based on the voltage at the B-set node, the voltage at the B-reset node and any one B1-clock pulse, and a scan output controller for generating a corresponding one of the A-scan pulses and a corresponding one of the B-scan pulses.

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Номер записи: 34
20-03-2014 дата публикации

Gate shift register and flat panel display using the same

Номер: US20140078128A1
Автор: Chan-Soo Park, Sang-Jin NAM
Принадлежит: LG Display Co Ltd

Discussed are a gate shift register and a flat panel display using the same. The flat panel display includes a display panel for displaying an image, a gate driver for driving a plurality of gate lines of the display panel, and a timing controller for outputting a gate start pulse and a plurality of clock pulses each having first to third voltages, to control the gate driver. The gate driver includes a gate shift register for generating scan pulses each having the first to third voltages, using the clock pulses, and supplying the generated scan pulses to the gate lines, respectively.

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Номер записи: 35
01-01-2015 дата публикации

LIGHT-EMITTING DISPLAY APPARATUS AND DRIVING METHOD THEREOF

Номер: US20150002558A1
Автор: Ishii Ryo, KANDA Eiji, Komiya Naoaki, KUMETA Masayuki, Okuno Takeshi
Принадлежит:

A pixel includes five transistors and a capacitor. A first transistor controls current to be supplied to a light-emitting element. A second transistor is connected between a gate electrode of the first transistor and a first power supply. A third transistor is connected between the gate electrode of the first transistor and a second terminal of the first transistor. The capacitor is coupled between the third transistor and the second terminal of the first transistor. The fourth transistor is connected between the second terminal of the first transistor and a second power supply. The fifth transistor is connected between the second terminal of the third transistor and a signal line. The capacitor may be the only capacitor in the pixel, and the signal line may receive an initialization voltage and a gray scale data voltage. 1. A method for driving a display apparatus , the method comprising:charging an initialization voltage in a capacitive element of a pixel circuit;charging the capacitive element with a first data voltage determined based on a gray scale data voltage and a threshold voltage of a first transistor in the pixel circuit; andsupplying a light-emitting element in the pixel circuit with current, corresponding to the first data voltage charged in the capacitive element, for causing the light-emitting element to emit light, wherein the first transistor controls a magnitude of the current supplied to the light-emitting element, and wherein the pixel circuit includes:a second transistor connected between a gate electrode of the first transistor and a first power supply,a third transistor having a first terminal connected to the gate electrode of the first transistor and a second terminal connected to a second terminal of the first transistor via the capacitive element,a fourth transistor connected between the second terminal of the first transistor and a second power supply, anda fifth transistor connected between the second terminal of the third transistor ...

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Номер записи: 36
01-01-2015 дата публикации

Organic light emitting diode display and driving method thereof

Номер: US20150002560A1
Автор: Jae-Sic Lee, Sun-Ja Kwon
Принадлежит: Samsung Display Co Ltd

An organic light emitting diode (OLED) display includes a display unit including a plurality of pixels connected to a plurality of data lines, a plurality of scan lines, a plurality of initializing control lines, and a plurality of light emission control lines, a scan driver to output scan signals to the scan lines and initializing signals to the initializing control lines, and a data driver to output data signals to respective ones of the data lines. A first pixel and a second pixel may be commonly connected to a scan line and a data line. The scan driver may output at least one first initializing signal and at least one second initializing signal to the first pixel and second pixel, respectively. The scan signals and the first and the second initializing signals may be activated at different points in time.

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Номер записи: 37
06-01-2022 дата публикации

Pixel Circuit and Driving Method Thereof, and Display Apparatus

Номер: US20220005413A1
Автор: FENG Xuehuan, Han Dongxu, Li Meng, Li Yongqian, Yuan Can, Yuan Zhidong
Принадлежит:

A pixel circuit and a driving method thereof, and a display device, the pixel circuit being configured to drive a light-emitting element and including: a node control sub-circuit, which is configured to provide a first node with a signal of a data signal end and provide a second node with a signal of a control signal end under the control of a first scanning end; a driving sub-circuit, which is configured to provide the second node with a driving current under the control of the first node and the second node; a storage sub-circuit, which is configured to store electric charge between the first node and the second node; a reading sub-circuit, and the light-emitting element, which is electrically connected to the second node and a second power supply end, respectively. 1. A pixel circuit for driving a light-emitting element , comprising:a node control sub-circuit, a driving sub-circuit, a storage sub-circuit and a reading sub-circuit, whereinthe node control sub-circuit is electrically connected with a first scanning terminal, a first node, a second node, a data signal terminal and a control signal terminal, and is configured to provide a signal of the data signal terminal to the first node and a signal of the control signal terminal to the second node, under control of the first scanning terminal;the driving sub-circuit is electrically connected with the first node, a first power supply terminal and the second node, and is configured to provide a driving current to the second node, under control of the first node and the second node;the storage sub-circuit is electrically connected with the first node and the second node, and is configured to store electric charges between the first node and the second node;the reading sub-circuit is electrically connected with a second scanning terminal, the second node and the control signal terminal, and is configured to provide a signal of the control signal terminal to the second node or a signal of the second node to the ...

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Номер записи: 38
06-01-2022 дата публикации

STAGE AND SCAN DRIVER INCLUDING THE SAME

Номер: US20220005415A1
Автор: Park Kyung Ho
Принадлежит:

A stage connected to scan lines and supplying a scan signal and a sensing signal to the scan lines includes an input unit and an output buffer. The input unit controls a voltage of a first node and a second node in response to a first control signal and a previous carry signal, where an eleventh node and a twelfth node are electrically connected to the first node and the second node, respectively, in response to a second control signal. The output buffer outputs a carry signal and the scan signal in response to a scan clock signal according to a voltage of the eleventh node and the twelfth node and outputs the sensing signal in response to a sensing clock signal. 1. A stage connected to scan lines and configured to supply a scan signal and a sensing signal to the scan lines , the stage comprising:an input unit configured to control a voltage of a first node and a second node in response to a first control signal and a previous carry signal, wherein an eleventh node and a twelfth node are electrically connected to the first node and the second node, respectively, in response to a second control signal; andan output buffer configured to output a carry signal and the scan signal in response to a scan clock signal according to a voltage of the eleventh node and the twelfth node and to output the sensing signal in response to a sensing clock signal.221.-. (canceled) The present application is a continuation application of U.S. patent application Ser. No. 16/860,935 filed Apr. 28, 2020, which claims priority under 35 U.S.C. § 119 to Korean Patent Application No. 10-2019-0051691, filed in the Korean Intellectual Property Office on May 2, 2019, the disclosures of which are incorporated by reference herein in their entirety.Exemplary embodiments of the inventive concept relate to a stage and a scan driver including the same.A display device includes a pixel unit including a plurality of pixels, a scan driver, a data driver, and a timing controller. The scan driver includes ...

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Номер записи: 39
05-01-2017 дата публикации

DISPLAY APPARATUS

Номер: US20170003716A1
Автор: Chong Jongho, KIM Suyoung, LEE Eunjung
Принадлежит:

A display apparatus includes a display panel and a folding part. The display panel includes an edge part curving in a first direction and a flat part connected the edge part. The folding part is below the flat part and is used to fold the display panel. The edge part includes a groove in a central portion of the edge part in a second direction crossing the first direction, and the groove extends in the first direction. 1. A display apparatus , comprising:a display panel including an edge part curving in a first direction and a flat part connected the edge part; anda folding part, below the flat part, to fold the display panel, wherein the edge part includes a groove in a central portion of the edge part in a second direction crossing the first direction, the groove extending in the first direction.2. The display apparatus as claimed in claim 1 , wherein the edge part includes a first side that curves downwardly and a second side connected to the flat part.3. The display apparatus as claimed in claim 1 , wherein the display panel has a first side in the first direction and a second side in the second direction claim 1 , the second side longer than the first side.4. The display apparatus as claimed in claim 1 , wherein the display panel includes:a non-display area on a predetermined area at a left side of the flat part in the first direction, on a predetermined area at upper and lower sides of the flat part in the second direction, on a predetermined area at a right of the edge part in the first direction, and on a predetermined area at upper and lower sides of the edge part in the second direction; anda display area on areas of the flat part and the edge part except for the non-display area.5. The display apparatus as claimed in claim 4 , further comprising:a plurality of pixels in the display area;a plurality of scan lines to receive scan signals, the scan lines extending in the first direction and connected to the pixels;a plurality of data lines to receive data ...

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Номер записи: 40
04-01-2018 дата публикации

DISPLAY DEVICE HAVING TOUCH SENSORS AND DRIVING METHOD THEREOF

Номер: US20180004345A1
Автор: KIM Sangkyu, Kim Taeyun, LEE Deuksu, Lee Jaegyun, Shin Seungrok
Принадлежит: LG DISPLAY CO., LTD.

A display device can include a display panel touch block groups, each including touch sensors, each touch sensor corresponds to one or more pixels defined by data lines and gate lines; a data driver that generates and supplies a modulated source signal for display data to a data line; a gate driver that generates a modulated scan-on signal for writing the modulated source signal to a pixel and supplies the modulated scan-on signal to the gate lines; and a touch sensor driver that supplies a touch driving signal to touch wires connected to corresponding touch sensors in each of the touch block groups, and selectively senses for touch on a touch block group, except for a restricted touch block group overlapping a gate line that is supplied with the modulated scan-on signal, in which the modulated source signal or the modulated scan-on signal is synchronized with the touch driving signal. 1. A display device having touch sensors , the display device comprising:a display panel comprising a plurality of touch block groups, each touch block group among the plurality of touch block groups including a plurality of touch sensors, each touch sensor among the plurality of touch sensors corresponding to one or more pixels among a plurality of pixels defined by data lines and gate lines;a data driver configured to generate a modulated source signal for displaying data and supplying the modulated source signal to a data line among the data lines;a gate driver configured to generate a modulated scan-on signal for writing the modulated source signal to a pixel among the plurality of pixels and supply the modulated scan-on signal to the gate lines; and supply a touch driving signal to touch wires respectively connected to corresponding touch sensors in each of the plurality of touch block groups, and', 'selectively sense touch on at least one touch block group among the plurality of touch block groups, except for a restricted touch block group among the plurality of touch block ...

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Номер записи: 41
05-01-2017 дата публикации

DISPLAY DEVICE

Номер: US20170004757A1
Автор: Nakanishi Takayuki, Yata Tatsuya
Принадлежит:

According to an aspect, a display device includes a plurality of pixels arranged along a row direction and a column direction. One pixel includes a set of sub-pixels including two sub-pixels that correspond to two colors complementary to each other and are arranged adjacent to each other along one of the row direction and the column direction, and two or more combinations of sub-pixels for outputting white light by combining adjacent sub-pixels are present for one sub-pixel. 1. A display device comprising a plurality of pixels arranged along a row direction and a column direction , whereinone pixel includes a set of sub-pixels including two sub-pixels that correspond to two colors complementary to each other,the two sub-pixels are arranged adjacent to each other along one of the row direction and the column direction, andtwo or more combinations of sub-pixels for outputting white light by combining adjacent sub-pixels are present for one sub-pixel.2. The display device according to claim 1 , wherein colors of two sub-pixels that are included in different pixels and are adjacent to each other in the one direction are complementary to each other.3. The display device according to claim 1 , whereina color of each sub-pixel is a color out of colors included in a predetermined number of primary colors and complementary colors of the primary colors,the predetermined number is three or more, and the primary colors include at least a first primary color, a second primary color, and a third primary color,one pixel includes the sub-pixel of the primary color and the sub-pixel of the complementary color of the primary color, andthe number of both the primary colors and the complementary colors included in the one pixel is equal to or larger than one and less than the predetermined number.4. The display device according to claim 1 , wherein the combination of light in two colors complementary to each other obtains white light through additive color mixture.5. The display device ...

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Номер записи: 42
05-01-2017 дата публикации

BUILT-IN GATE DRIVER AND DISPLAY DEVICE USING THE SAME

Номер: US20170004760A1
Автор: CHOI Woo-Seok, JANG Yong-Ho
Принадлежит: LG DISPLAY CO., LTD.

Discussed are a built-in gate driver capable of improving output characteristics of the gate driver by reducing load of clock lines and a display device using the same. The built-in gate driver can include a shift register, a first clock group and a second clock group located in a non-display region of a display panel. The shift register includes a plurality of stages for individually driving gate lines of a display region. The first clock group includes clock lines arranged at a first side of the shift register. The second clock group includes clock lines arranged at a second side of the shift register. Each of the clock lines includes a main line and a branch line branched from the main line and connected to a corresponding stage. A branch line belonging to a corresponding clock group of any one of the first and second clock groups does not overlap a main line belonging to the other clock group. 1. A built-in gate driver comprising:a shift register located in a non-display region of a display panel, the shift register including a plurality of stages for individually driving gate lines of a display region;a first clock group including clock lines arranged at a first side of the shift register; anda second clock group including clock lines arranged at a second side of the shift register,wherein each of the clock lines includes a main line and a branch line branched from the main line and connected to a corresponding stage, anda branch line belonging to a corresponding clock group of any one of the first and second clock groups does not overlap a main line belonging to the other clock group.2. The built-in gate driver according to claim 1 ,wherein each of the stages includes a first output unit and a second output unit for generating outputs using different clocks,the first output unit includes a first pull-up transistor receiving any one of clocks A supplied through the first clock group and generating a first output, andthe second output unit includes a second pull ...

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Номер записи: 43
05-01-2017 дата публикации

TIMING CONTROLLER OF OPERATING SELECTIVE SENSING AND ORGANIC LIGHT EMITTING DISPLAY DEVICE COMPRISING THE SAME

Номер: US20170004765A1
Автор: Bae NaYoung, BAE Sungjoon, TANI Ryosuke
Принадлежит: LG DISPLAY CO., LTD.

There are provided a timing controller of operating selective sensing and an organic light emitting display device comprising the same, the timing controller being configured to selectively perform a sensing when a display panel operates in an ON state. The timing controller performs a sensing to the display panel on the basis of a temperature of the display panel, a time difference in operation of the display panel, and a degree of need for sensing of representative sub-pixels. 1. An organic light emitting display device comprising:a display panel in which a plurality of sub-pixels is disposed;a gate driver configured to apply a signal to a gate line in the display panel;a data driver configured to apply a signal to a data line in the display panel; anda timing controller configured to control the gate driver and the data driver by calculating any one or more of a temperature of the display panel, an OFF-ON time difference of the display panel, and a degree of need for sensing of the sub-pixels and determining whether or not to perform a sensing to the display panel when the display panel is changed from an OFF state to an ON state.2. The organic light emitting display device according to claim 1 ,wherein the sub-pixel includes an organic light emitting diode and a driving transistor configured to drive the organic light emitting diode, andthe timing controller controls the gate driver and the data driver in order to control a selective sensing to driving transistors of the sub-pixels when the display panel is changed from an OFF state to an ON state.3. The organic light emitting display device according to claim 1 ,wherein the timing controller controls the gate driver and the data driver to output an image on the display panel without a sensing to the sub-pixels if a difference between a time for completing a sensing to the display panel and a time for changing the display panel to an ON state is higher than a preset reference.4. The organic light emitting ...

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Номер записи: 44
05-01-2017 дата публикации

Organic light emitting display and driving method thereof

Номер: US20170004766A1
Автор: HyungNyuck CHO, Janghoon Song
Принадлежит: LG Display Co Ltd

Discussed are an organic light emitting display which can reduce flicker, along with power consumption, and a driving method thereof. In a low-power operation mode of the organic light emitting display, at least one holding frame is placed between writing frames in which image data is written, the output of the source driver is enabled during the writing frames, the output of the source driver is disabled during the holding frames, and the emission driver is controlled during the holding frames to increase the toggle frequency of the emission signal to be higher than or equal to N times the frame frequency (N is a positive integer greater than or equal to 2). The driving method can reduce the perceived flicker.

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Номер записи: 45
05-01-2017 дата публикации

ELECTRO-OPTICAL DEVICE AND ELECTRONIC APPARATUS

Номер: US20170004767A1
Автор: FUJITA Shin
Принадлежит: SEIKO EPSON CORPORATION

An electro-optical device includes a scanning line, a data line intersecting with each other, a pixel circuit which is provided corresponding to the intersection thereof, and a wire. The pixel circuit includes a light emitting element, one transistor which controls a current flowing to the light emitting element, and the other transistor of which conduction state is controlled according to a scanning signal which is supplied to the scanning line between a gate node of the one transistor and the data line. The wire is provided between the data line and the one transistor. 2. The electro-optical device according to claim 1 ,wherein the shield wire is disposed between the gate of the first transistor and a gate of the second transistor in plan view.3. The electro-optical device according to claim 1 ,wherein a part of the gate electrode layer constitutes an electrode of a capacitor, andwherein the capacitor is electrically connected to the gate electrode of the first transistor.4. The electro-optical device according to claim 3 ,wherein the shield wire overlaps at least part of the capacitor in plan view.6. The electro-optical device according to claim 5 ,wherein the first relay electrode is disposed so that the first relay electrode does not overlap the shield wire.7. The electro-optical device according to claim 5 , further comprising:a second relay electrode connected to the second transistor;a first connection portion connected between the first relay electrode and the second relay electrode; anda second connection portion connected between the first relay electrode and the extended portion of the data line,wherein the first connection portion overlaps the second connection portion in plan view.8. The electro-optical device according to claim 1 ,wherein the shield wire overlaps at least part of the first transistor in plan view.9. An electronic apparatus comprising an electro-optical device according .10. An electronic apparatus comprising an electro-optical device ...

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Номер записи: 46
05-01-2017 дата публикации

CIRCUIT AND METHOD FOR DRIVING AN ARRAY OF LIGHT EMITTING PIXELS

Номер: US20170004769A1
Автор: Jafarabadiashtiani Shahin, Nathan Arokia, Servati Peyman, Vygranenko Yuriy
Принадлежит:

A technique for driving a column of pixels that include light emitting elements. The technique incorporates feedback data provided from feedback data sources connected to the data line and to feedback line of the array, pixel driving circuit with feedback path. The technique can also include block of the reference elements for input signal corrections. 117-. (canceled)18. A pixel circuit for use in a display , the display comprising a plurality of pixels , each of the pixels comprising:a light emitting element;a drive use transistor for providing a drive current to the light emitting element; andan on-pixel feedback circuit for generating a feedback voltage from the pixel and representing a drive current provided to the light emitting element, the feedback voltage being provided to a feedback line of the display.19. The pixel circuit according to claim 18 , wherein the feedback circuit comprises at least one of a resistor claim 18 , a diode claim 18 , or the light emitting element connected between the drive use transistor and a reference potential.20. The pixel circuit according to claim 19 , wherein the reference potential is ground.21. The pixel circuit according to claim 18 , wherein each of the pixels further comprises a storage capacitor connected to ground or to the feedback circuit.22. The pixel circuit according to claim 18 , wherein the feedback circuit comprises a resistor connected between the drive use transistor and a reference potential providing the feedback voltage at a level proportional to the drive current.23. The pixel circuit according to claim 18 , wherein each of the pixels further comprises a current mirror structure for generating an on-pixel signal current proportional to the drive current claim 18 , wherein the on-pixel signal current is provided to the feedback circuit for generating the feedback voltage.24. The pixel circuit according to claim 23 , wherein the feedback circuit comprises at least one of a resistor claim 23 , a diode ...

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Номер записи: 47
05-01-2017 дата публикации

Emission driver and display device including the same

Номер: US20170004771A1
Автор: Ji-Su NA, Seung-Kyu Lee
Принадлежит: Samsung Display Co Ltd

An emission driver includes light emission driving controllers that are electrically connected to light emission control lines. Each of the light emission driving controllers may include a first circuit block configured to provide a second voltage to a first node in response to a first clock signal and to output a first voltage as a light emission control signal based on a voltage at the first node and a second clock signal having a phase difference from a phase of the first clock signal; and a second circuit block configured to provide a synchronization signal to a second node in response to the first clock signal, to maintain a voltage at the second node using a metal-oxide-semiconductor (MOS) capacitor, and to pull down the light emission control signal to have the second voltage in response to the voltage at the second node.

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Номер записи: 48
05-01-2017 дата публикации

DISPLAY DEVICE, PANEL DEFECT DETECTION SYSTEM, AND PANEL DEFECT DETECTION METHOD

Номер: US20170004773A1
Автор: Kim EungKyu, Park SinKyun
Принадлежит: LG DISPLAY CO., LTD.

A display device is provided in which a control switching element arranged in a location to which a voltage used for driving a display panel is applied may identify whether an abnormal current has occurred in the display panel in an off-situation so as to easily and accurately detect whether or not a panel defect exists, in a panel defect detection interval wherein the panel defect detection interval is an interval having no abnormal current occurring therein when no panel defect exists. A panel defect detection system and a panel defect detection method are also provided. 1. A display device comprising:a display panel on which multiple data lines and multiple gate lines are arranged, and multiple subpixels are arranged;a control switching element electrically connected between an application node in which a voltage used for driving the display panel is applied to the display panel and a supply node configured to supply the voltage to be applied to the display panel; anda sensing module configured to sense a current flowing through the application node or a voltage according to the current, when the control switching element is turned-off.2. The display device of claim 1 , wherein the control switching element is turned-off in order to detect an abnormal current in the display panel.3. The display device of claim 1 , wherein the control switching element is turned-off in an interval in which a screen having brightness equal to or lower than a predetermined particular value is displayed.4. The display device of claim 1 , further comprising a control module configured to supply a gate signal corresponding to a control signal to a gate node of the control switching element claim 1 , and control turn-on or turn-off of the control switching element.5. The display device of claim 4 , wherein the control switching element is located on the display panel or a printed circuit board claim 4 , the sensing module is located on the printed circuit board or included inside the ...

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Номер записи: 49
05-01-2017 дата публикации

SHIFT REGISTER UNIT AND DRIVING METHOD THEREOF, GATE DRIVING CIRCUIT AND DISPLAY APPARATUS

Номер: US20170004775A1
Автор: CHEN Yipeng, Xuan Minghua, Zhang Yi
Принадлежит:

Embodiments of the present disclosure provide a shift register unit and a driving method thereof, a gate driving circuit and a display apparatus. The shift register unit includes a reset signal sub-unit and a scan signal sub-unit. The reset signal sub-unit includes a first input module, a first output module, and a first control module. The scan signal sub-unit includes a second input module, a second output module, and a second control module. The first input module is connected with the first control module, the first output module, and a signal input terminal. Both the first output module and the first control are connected with the scan signal sub-unit and a reset signal terminal. The second input module is also connected with the second output module and the second control module. Both the second output module and the second control module are connected with a signal output terminal. 1. A shift register unit including: a reset signal sub-unit and a scan signal sub-unit;wherein, the reset signal sub-unit includes: a first input module, a first output module, and a first control module;the first input module being connected with a signal input terminal, a first clock signal terminal, the first control module, and the first output module, used for outputting a signal at the signal input terminal to the first output module and the first control module under the control of the first clock signal terminal;the first output module being also connected with a second clock signal terminal, a first voltage terminal, a reset signal terminal, and the scan signal sub-unit, used for outputting a signal at the second clock signal terminal to the scan signal sub-unit and the reset signal terminal under the control of the first voltage terminal and the first input module;the first control module being also connected with the first voltage terminal, the first clock signal terminal, a second voltage terminal, the reset signal terminal, and the scan signal sub-unit, used for ...

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Номер записи: 50
05-01-2017 дата публикации

SHIFT REGISTER AND DRIVING METHOD THEREOF

Номер: US20170004889A1
Автор: Li Yuan, Qian Dong
Принадлежит:

The present disclosure provides a shift register and a method for driving the shift register. The shift register includes a first input module, a second input module and an output module. The first input module includes a first transistor and a second transistor, both being connected with a first input terminal, a fourth input terminal and a fifth input terminal. The second input module is connected with a second input terminal, a third input terminal and a fourth input terminal. The second input terminal is electrically connected with the first input module at a first node. The output module being connected with a fifth input terminal, a sixth input terminal and a first output terminal, the output module being electrically connected with the first input module at the first node and the second node, and the output module being electrically connected with the second input module at the first node. 1. A shift register , comprising:a first input module, a second input module and an output module; anda first input terminal, a second input terminal, a third input terminal, a fourth input terminal, a fifth input terminal, a sixth input terminal and a first output terminal, wherein a first pulse signal is inputted to the first input terminal, a second pulse signal is inputted to the second input terminal, a first clock signal is inputted to the third input terminal, a second clock signal is inputted to the fourth input terminal, a first level signal is inputted to the fifth input terminal, and a second level signal is inputted to the sixth input terminal being; and, whereinthe first input module comprises a first transistor and a second transistor, a gate electrode of the first transistor being connected with the first input terminal, a source electrode of the first transistor being connected with the fifth input terminal, a drain electrode of the first transistor being connected with a first node, a gate electrode of the second transistor being connected with the first ...

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Номер записи: 51
03-01-2019 дата публикации

Scanning Circuit, Drive Circuit And Touch Display Device

Номер: US20190004643A1
Автор: MA Conghua, Yang Kang
Принадлежит:

A scanning circuit, a drive circuit and a touch display device are provided. The scanning circuit drives a pixel row in a one-to-one manner. The scanning circuit includes: an input module, configured to generate a scanning signal in response to an inputted starting signal; a latch module, electrically connected to the input module and configured to generate the starting signal in response to the scanning signal and latch the starting signal; and a gating module, electrically connected to the latch module and configured to perform a display scanning on the pixel row driven by the scanning circuit under a control of the starting signal in a display stage and suspend the display scanning on the pixel row driven by the scanning circuit under the control of the starting signal in a touch stage. 1. A scanning circuit of a touch display device comprising a plurality of pixel rows , the scanning circuit driving one of the plurality of pixel rows and comprising:an input module, configured to generate a scanning signal in response to an input starting signal;a latch module, electrically connected to the input module and configured to generate and latch a starting signal the same as the input starting signal in response to the scanning signal; anda gating module, electrically connected to the latch module and configured to perform a display scanning on the pixel row under a control of the starting signal in a display stage, and suspend the display scanning on the pixel row under the control of the starting signal in a touch stage.2. The scanning circuit according to claim 1 , whereinthe input module comprises a first clock inverter, an input end of the first clock inverter is input with the input starting signal, an output end of the first clock inverter is electrically connected to the latch module, a first control end of the first clock inverter is input with a first control signal, and a second control end of the first clock inverter is input with a second control signal, ...

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Номер записи: 52
07-01-2016 дата публикации

Amoled (active matrix organic light emitting diode) panel driving circuit and driving method

Номер: US20160005355A1
Автор: Chunhuai Li, Liwei Chu, Yichien WEN
Принадлежит: Shenzhen China Star Optoelectronics Technology Co Ltd

The present invention provides an AMOLED panel driving circuit and driving method. The driving circuit includes: an AMOLED panel ( 2 ), a gate driver ( 4 ) and a source driver ( 6 ) each electrically connected to the AMOLED panel ( 2 ), and a timing controller ( 8 ) and a gamma IC ( 10 ) each electrically connected to the source driver ( 6 ). The timing controller ( 8 ) is further electrically connected to the gate driver ( 4 ) and the gamma IC ( 10 ). The timing controller ( 8 ) uses two sets of gate control signal to control the gate driver ( 4 ). The source driver ( 6 ) supplies a data signal to the AMOLED panel ( 2 ). The data signal includes a plurality of data frames and each of the data frames includes a plurality of sub-data-frames having equal time intervals.

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Номер записи: 53
07-01-2016 дата публикации

SCAN DRIVER AND ORGANIC LIGHT EMITTING DISPLAY DEVICE USING THE SAME

Номер: US20160005359A1
Автор: EOM Euncheol, Kim Jungchul, KWON JunYoung, SIM JaeHo
Принадлежит: LG DISPLAY CO., LTD.

A scan driver and organic light emitting display device are disclosed. The organic light emitting display device includes a display panel, a data driver that supplies a data signal to the display panel, and a scan driver that supplies a scan signal to the display panel, the scan driver comprising a shift register and an inverter that inverts a scan signal output through the output terminal of the shift register and outputs the inverted scan signal, wherein the shift register and the inverter are connected to separate voltage lines through which a gate-low voltage is delivered. 1. An organic light emitting display device , comprising:a display panel;a data driver that supplies a data signal to the display panel; anda scan driver that supplies a scan signal to the display panel,the scan driver comprising a shift register and an inverter that inverts a scan signal output through the output terminal of the shift register and outputs the inverted scan signal,wherein the shift register and the inverter are connected to separate voltage lines through which a gate-low voltage is delivered.2. The organic light emitting display device of claim 1 , wherein the shift register is connected to a gate-low voltage line claim 1 , and the inverter is connected to a variable voltage line.3. The organic light emitting display device of claim 2 , wherein claim 2 , upon turning on the screen of the display panel claim 2 , the voltage of the variable voltage line swings between a first voltage and a second voltage that have different levels.4. The organic light emitting display device of claim 3 , wherein claim 3 , upon turning on the screen of the display panel claim 3 , the voltage of the variable voltage line is maintained at the second voltage for a given period of time and then maintained at the first voltage after the given period of time.5. The organic light emitting display device of claim 2 , wherein claim 2 , upon turning on the screen of the display panel claim 2 , the voltage ...

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Номер записи: 54
13-01-2022 дата публикации

DISPLAY DRIVER INTEGRATED CIRCUIT AND DRIVING METHOD

Номер: US20220013069A1
Автор: AN Jooyoung, Lim Hyunwook, OK Jiheon
Принадлежит:

A display driver integrated circuit includes a first memory, a compensator, an accumulator and a second memory. The first memory stores a plurality of compensation data that are used to compensate for deterioration of a plurality of pixels. The compensator generates a plurality of output image data for image display by compensating a plurality of input image data based on the plurality of compensation data. The accumulator groups the plurality of pixels into a plurality of blocks, generates a plurality of block image data by sampling the plurality of output image data in block units, generates a plurality of block accumulation data in block units based on the plurality of block image data, and generates a plurality of pixel accumulation data in pixel units by synthesizing portions of the plurality of output image data and portions of the plurality of block accumulation data. The second memory stores the plurality of block accumulation data in a first period. The plurality of pixel accumulation data may be stored in a third memory in a second period longer than the first period. 1. A display driver integrated circuit for driving a display panel including a plurality of pixels , comprising:a memory configured to store a plurality of compensation data;a compensator configured to generate a plurality of output image data based on the plurality of compensation data; andan accumulator configured to group the plurality of pixels into a plurality of blocks, to generate a plurality of block image data by sampling the plurality of output image data in block units, to generate a plurality of block accumulation data in block units based on the plurality of block image data and to store the plurality of block accumulation data into the memory in a first period, and to generate a plurality of pixel accumulation data in pixel units by synthesizing portions of the plurality of output image data and portions of the plurality of block accumulation data.2. The display driver ...

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Номер записи: 55
13-01-2022 дата публикации

Digital-analog converter, data driving circuit having the same, and display device having the same

Номер: US20220013070A1
Автор: Hyung Gun Ma, Ji Woong Kim, Jun Yong Song, Oh Jo Kwon, Sang Hyun Heo, Seong Joo Lee
Принадлежит: Samsung Display Co Ltd

A digital-analog converter of the disclosure converts digital image data to generate analog data signals. The digital-analog converter includes a voltage divider which generates a plurality of gamma reference voltages based on a first reference voltage and a second reference voltage; a global ramp including a plurality of gamma decoders which generates a plurality of global gamma voltages based on the gamma reference voltages; a decoder which selects one of the global gamma voltages according to the digital image data to generate the analog data signals; and a ramp controller which turns off at least some of the gamma decoders based on the digital image data.

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Номер записи: 56
13-01-2022 дата публикации

DISPLAY DEVICE, AND METHOD OF SENSING A DRIVING CHARACTERISTIC

Номер: US20220013072A1
Автор: CHO Manseung, KANG KYEONG SOO, KIM Jeonkyoo, Lee Jin Kyu, Lee Soo Yeon, MOON JUNHEE, You Bonghyun
Принадлежит:

A display device includes a sensing circuit and a controller which selects a pixel row in a frame period. A vertical blank period of the frame period includes a sensing time in which the sensing circuit performs a sensing operation for the selected pixel row. The sensing circuit measures a first source voltage of a driving transistor of a pixel in the selected pixel row at a first time point of the sensing time, and measures a second source voltage of the driving transistor at a second time point of the sensing time. The controller calculates a threshold voltage parameter and a mobility parameter based on the first and second source voltages, predicts a saturated source voltage of the driving transistor based on the threshold voltage parameter and the mobility parameter, and calculates a threshold voltage of the driving transistor based on the saturated source voltage. 1. A display device comprising:a display panel including a plurality of pixel rows;a scan driver which provides a scan signal and a sensing signal to a corresponding pixel row of the plurality of pixel rows;a data driver coupled to the plurality of pixel rows through a plurality of data lines;a sensing circuit coupled to the plurality of pixel rows through a plurality of sensing lines; anda controller which controls the scan driver, the data driver and the sensing circuit, and selects a pixel row from the plurality of pixel rows in a frame period,wherein a vertical blank period of the frame period includes a sensing time in which the sensing circuit performs a sensing operation for the selected pixel row,wherein the sensing circuit measures a first source voltage of a driving transistor of a pixel in the selected pixel row at a first time point of the sensing time, and measures a second source voltage of the driving transistor at a second time point of the sensing time, andwherein the controller calculates a threshold voltage parameter and a mobility parameter based on the first source voltage and the ...

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Номер записи: 57
13-01-2022 дата публикации

Tft array substrate

Номер: US20220013546A1
Автор: Naoki Tokuda
Принадлежит: Japan Display Inc

A display device includes a plurality of pixels, first to nth scanning lines, and a first semiconductor film. The plurality of pixels is arranged in first to nth rows and first to mth columns. The first to nth scanning lines are electrically connected to the pixels in the respective first to nth rows. The first semiconductor film overlaps with at least one of first to kth scanning lines. A display region has a cutoff intersecting the first to nth rows, and the first semiconductor film is located in the cutoff. Each of the plurality of pixels includes a light-emitting element (OLED) and a transistor electrically connected to the OLED and having a second semiconductor film. The first semiconductor film and the second semiconductor film exist in the same layer. n and m are each a natural number larger than 1, and k is a natural number smaller than n.

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Номер записи: 58
07-01-2021 дата публикации

DISPLAY DEVICE AND METHOD FOR DRIVING SAME

Номер: US20210005139A1
Автор: Ueno Tetsuya
Принадлежит:

The present disclosure discloses a current-driven display device that uses an internal compensation method and can display a good-quality image with no bright dots that are not included in intended display content. In a pixel circuit of an organic EL display device, a gate voltage of a drive transistor is initialized before the voltage of a data signal line is written to a holding capacitor via the diode-connected drive transistor. A first initialization voltage line for initialization of the gate voltage and a second initialization voltage line for initialization of an anode voltage of the organic EL element are connected to the pixel circuit. In the initialization of the gate voltage, a voltage of the first initialization voltage line that is higher than the voltage of the second initialization voltage line is provided to the gate terminal of the drive transistor via the first initialization transistor. 1. A display device including a plurality of data signal lines , a plurality of scanning signal lines intersecting the plurality of data signal lines , a plurality of light emission control lines individually corresponding to the plurality of scanning signal lines , and a plurality of pixel circuits arranged in a matrix along the plurality of data signal lines and the plurality of scanning signal lines , the display device comprising:first and second power source lines;an initialization voltage supply circuit;a data signal line drive circuit configured to drive the plurality of data signal lines;a scanning signal line drive circuit configured to selectively drive the plurality of scanning signal lines; anda light emission control circuit configured to drive the plurality of light emission control lines,each pixel circuit comprising:a display element driven by a current;a holding capacitor configured to hold a voltage used for controlling a drive current of the display element;a drive transistor configured to control a drive current of the display element according ...

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Номер записи: 59
07-01-2021 дата публикации

PIXEL CIRCUITS FOR AMOLED DISPLAYS

Номер: US20210005140A1
Автор: Chaji Gholamreza
Принадлежит:

A system for controlling a display in which each pixel circuit comprises a light-emitting device, a drive transistor, a storage capacitor, a reference voltage source, and a programming voltage source. The storage capacitor stores a voltage equal to the difference between the reference voltage and the programming voltage, and a controller supplies a programming voltage that is a calibrated voltage for a known target current, reads the actual current passing through the drive transistor to a monitor line, turns off the light emitting device while modifying the calibrated voltage to make the current supplied through the drive transistor substantially the same as the target current, modifies the calibrated voltage to make the current supplied through the drive transistor substantially the same as the target current, and determines a current corresponding to the modified calibrated voltage based on predetermined current-voltage characteristics of the drive transistor. 1. A display system comprising:a supply voltage source; a light-emitting device,', 'a drive transistor for driving current through the light-emitting device according to a driving voltage across the drive transistor during an emission cycle, and', 'a storage capacitor having a first terminal and a second terminal and for storing a voltage to be applied to the drive transistor during the emission cycle; and, 'a plurality of pixels, including at least one pixel circuit including during a first operation cycle, couple the storage capacitor to the supply voltage source; and', 'during a second operation cycle different from the first operation cycle, decouple the storage capacitor from the supply voltage source., 'a controller configured to2. The display system of claim 1 , wherein the first operation cycle occurs prior to the second operation cycle.3. The display system of claim 1 , wherein the first operation cycle occurs subsequent to the second operation cycle.4. The display system of claim 1 , wherein the ...

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Номер записи: 60
07-01-2021 дата публикации

DISPLAY PANEL AND DISPLAY DEVICE

Номер: US20210005144A1
Автор: HUANG Weiyun, Huang Yao, Li Meng, LIU Libin, LONG Yue, Zeng Chao
Принадлежит:

A display panel and a display device are disclosed, the display panel includes a plurality of display regions, a peripheral region surrounding the plurality of display regions, a plurality of light-emission control scan driving circuits provided in the peripheral region, a first start signal line, and a second start signal line. The first start signal line is different from the second start signal line, the plurality of display regions include a first display region and a second display region, the plurality of light-emission control scan driving circuits include a first light-emission control scan driving circuit and a second light-emission control scan driving circuit, the first start signal line is configured to provide a first start signal to the first light-emission control scan driving circuit, and the second start signal line is configured to provide a second start signal to the second light-emission control scan driving circuit. 1. A display panel , comprising a plurality of display regions , a peripheral region surrounding the plurality of display regions , a plurality of light-emission control scan driving circuits provided in the peripheral region , a first start signal line , and a second start signal line , whereinthe first start signal line is different from the second start signal line,the plurality of display regions comprise a first display region and a second display region which are side by side but not overlapped with each other, the first display region comprises rows of first pixel units arranged in array, the second display region comprises rows of second pixel units arranged in array,the plurality of light-emission control scan driving circuits comprise a first light-emission control scan driving circuit for controlling the rows of first pixel units to emit light, and a second light-emission control scan driving circuit for controlling the rows of second pixel units to emit light,the first start signal line is electrically connected to the ...

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Номер записи: 61
07-01-2021 дата публикации

DISPLAY DEVICE, GATE DRIVING CIRCUIT, AND DRIVING METHOD THEREOF

Номер: US20210005145A1
Автор: JOO Kyuhwan, KIM SungJoong, LEE Sangjae
Принадлежит: LG DISPLAY CO., LTD.

Embodiments of the present disclosure relate to a display device, a gate driving circuit, and a driving method thereof, and more specifically, to a display device, a gate driving circuit, and a driving method thereof capable of solving problems with insufficient charging time or image abnormalities by controlling supply timing of two gate signals, e.g., scan signals and sense signals. 1. A gate driving circuit comprising:a scan clock signal generator configured to receive a first reference scan clock signal and a second reference scan clock signal and configured to generate and output a scan clock signal;a sense clock signal generator configured to receive a first reference sense clock signal and a second reference sense clock signal and configured to generate and output a sense clock signal; anda gate signal outputter configured to output a scan signal having a turn-on level voltage interval, based on the scan clock signal, and configured to output a sense signal having a turn-on level voltage interval, based on the sense clock signal,wherein the second reference scan clock signal rises and falls after the first reference scan clock signal rises and falls,wherein the second reference sense clock signal rises and falls after the first reference sense clock signal rises and falls,wherein a high-level gate voltage interval of the sense clock signal is delayed from a high-level gate voltage interval of the scan clock signal by a predetermined sense shift time, andwherein a turn-on level voltage interval of the sense signal is delayed from a turn-on level voltage interval of the scan signal by the sense shift time.2. The gate driving circuit of claim 1 , wherein the scan clock signal generator is configured to generate and output the scan clock signal that rises at a rising time of the first reference scan clock signal and falls at a falling time of the second reference scan clock signal claim 1 ,wherein the sense clock signal generator is configured to generate and ...

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Номер записи: 62
07-01-2021 дата публикации

DISPLAY DEVICE AND METHOD OF OPERATING THE SAME

Номер: US20210005146A1
Автор: KIM Kyun Ho
Принадлежит:

Provided are a display device and a method of operating the same. The method of operating the display device, which includes a display panel including a plurality of pixels and a data driver configured to provide data signals having different voltage levels to all data lines connected to pixels, comprises steps of applying a data signal having a first data voltage to all the data lines, determining whether a preset sensing current flows in a target wire, and applying a data signal having a second data voltage to all the data lines, wherein the second data voltage is offset from the first data voltage by a certain voltage level. 1. A method of operating a display device which includes a display panel comprising a plurality of pixels and a data driver configured to provide data signals having different voltage levels to all data lines connected to pixels , the method comprising steps of:applying a data signal having a first data voltage to each data line;determining whether a preset sensing current flows in a target wire; andapplying a data signal having a second data voltage to each data line, wherein the second data voltage is offset from the first data voltage by a certain voltage level.2. The method of claim 1 , wherein the display device further includes a current detection unit configured to sense a global current supplied to or emitted from the display panel claim 1 ,the target wire is a wire for connecting the current detection unit and the display panel, andthe sensing current is the global current.3. The method of claim 2 , wherein claim 2 , when the data signal having the first data voltage is applied claim 2 , the global current does not flow claim 2 , andwhen the data signal having the second data voltage is applied, the global current flows.4. The method of claim 1 , further comprising claim 1 , after the step of determining whether the preset sensing current flows in the target wire claim 1 , determining an offset sign.5. The method of claim 4 , wherein ...

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Номер записи: 63
07-01-2021 дата публикации

DRIVING CHIP, METHOD FOR CONTROLLING THE SAME, AND DISPLAY DEVICE

Номер: US20210005158A1
Автор: Huang Yang, LI JUN, YU Zhihua
Принадлежит: WuHan TianMa Micro-electronics CO.,LTD

A driving chip, a control method therefor and a display device are provided. The driving chip includes Gamma voltage generating circuits, first power supply voltage output circuits and a color cast adjustment circuit. The Gamma voltage generating circuits correspond to sub-pixels of different colors. The first power supply voltage output circuits are electrically connected to different Gamma voltage generating circuits and each of the first power supply voltage output circuits is configured to output a first power supply voltage to a corresponding first power supply voltage terminal. The color cast adjustment circuit is electrically connected to each first power supply voltage output circuit, and is configured to adjust the first power supply voltage output by at least one first power supply voltage output circuits according to a light-emitting duration of a light-emitting device in a display panel per unit time. 1. A driving chip operationally coupled to a display panel , the driving chip comprising:Gamma voltage generating circuits, wherein the Gamma voltage generating circuits correspond to sub-pixels of different colors, and each of the Gamma voltage generating circuits comprises a first power supply voltage terminal and a second power supply voltage terminal that are separate, and a resistor connected in series between the first power supply voltage terminal and the second power supply voltage terminal;first power supply voltage output circuits electrically connected to different Gamma voltage generating circuits, each of the first power supply voltage output circuits being configured to output a first power supply voltage to the first power supply voltage terminal of a corresponding one of the Gamma voltage generating circuits; anda color cast adjustment circuit, wherein the color cast adjustment circuit is electrically connected to each of the first power supply voltage output circuits, and wherein the color cast adjustment circuit is configured to adjust the ...

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Номер записи: 64
04-01-2018 дата публикации

SYSTEM AND METHODS FOR EXTRACTION OF THRESHOLD AND MOBILITY PARAMETERS IN AMOLED DISPLAYS

Номер: US20180005559A1
Автор: Azizi Yaser, Chaji Gholamreza
Принадлежит:

Disclosed is a system and method to improve the extraction of transistor and OLED parameters in an AMOLED display for compensation of programming voltages to improve image quality. A pixel circuit includes an organic light emitting device, a drive device to provide a programmable drive current to the light emitting device, a programming input to provide the programming signal, and a storage device to store the programming signal. A charge-pump amplifier has a current input and a voltage output. The charge-pump amplifier includes an operational amplifier in negative feedback configuration. The feedback is provided by a capacitor connected between the output and the inverting input of the operational amplifier. A common-mode voltage source drives the non-inverting input of the operational amplifier. An electronic switch is coupled across the capacitor to reset the capacitor. A switch module including the input is coupled to the output of the pixel circuit and an output is coupled to the input of the charge-pump amplifier. The switch module includes a set of electronic switches that may be controlled by external control signals to steer current in and out of the pixel circuit and provide a discharge path between the pixel circuit and the charge-pump amplifier and isolating the charge-pump amplifier from the pixel circuit. A controller is coupled to the pixel circuit, charge-pump amplifier and the switch module. The controller controls input signals to the pixel circuit, charge-pump amplifier and switch module in a predetermined sequence to produce an output voltage value which is a function of a parameter of the pixel circuit. The sequence includes providing a program voltage to the programming input to either pre-charge an internal capacitance of the pixel circuit to a charge level and transfer the charge to the charge-pump amplifier via the switch module to generate the output voltage value or provide a current from the pixel circuit to the charge-pump amplifier via ...

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Номер записи: 65
04-01-2018 дата публикации

PIXEL, STAGE CIRCUIT AND ORGANIC LIGHT EMITTING DISPLAY DEVICE HAVING THE PIXEL AND THE STAGE CIRCUIT

Номер: US20180005572A1
Автор: BAE Han Sung, KA JI HYUN, KWAK Won Kyu
Принадлежит:

A pixel includes a plurality of transistors and an organic light emitting diode. The transistors include a first transistor to control an amount of current flowing to the organic light emitting diode. Additional transistors are connected to the first transistor or the organic light emitting diode. The first transistor is a Low Temperature Poly-Silicon (LTPS) thin film transistor. One or more of the other transistors are oxide semiconductor transistors. 1. A pixel , comprising:an organic light emitting diode;a first transistor to control an amount of current flowing from a first driving power supply connected to a first electrode, through the organic light emitting diode, and to a second driving power supply based on a voltage of a first node, the first transistor being an n-type Low Temperature Poly-Silicon (LTPS) thin film transistor;a second transistor connected between a data line and the first node, the second transistor to turn on when a scan signal is supplied to a first scan line, the second transistor being an n-type oxide semiconductor thin film transistor;a third transistor connected between a second electrode of the first transistor and an initialization power supply, the third transistor to turn on when a scan signal is supplied to a second scan line, the third transistor being an n-type LTPS thin film transistor;a fourth transistor connected between the first driving power supply and a first electrode of the first transistor, the fourth transistor to turn off when a light emission control signal is supplied to a light emission control line, the fourth transistor being an n-type LTPS thin film transistor; anda storage capacitor connected between a second node connected to a second electrode of the first transistor and the first node.2. The pixel as claimed in claim 1 , further comprising:a fifth transistor connected between a reference power supply and the first node, wherein the fifth transistor is to turn on when a scan signal is supplied to a third ...

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Номер записи: 66
04-01-2018 дата публикации

STAGE AND ORGANIC LIGHT EMITTING DISPLAY DEVICE USING THE SAME

Номер: US20180005573A1
Автор: Kim Sung Hwan, Park Jun Hyun, SHIN Kyoung Ju
Принадлежит:

A stage includes first, second, and third outputs and first and second signal processors. The first output supplies a scan signal to a first output terminal based on signals to first and second input terminals and the voltage of a first node. The second output is connected to a first power source and supplies an emission control signal to a second output terminal based on signals to the first input terminal, the first output terminal, and a third input terminal. The third output is connected to the first power source and supplies an inverted emission control signal to a third output terminal based on signals to the first input terminal and second output terminal. The first signal processor controls the first node voltage based on a signal to a fourth input terminal. The second signal processor controls the first node voltage based on the signal to the second input terminal. 1. A stage , comprising:a first output to supply a scan signal to a first output terminal based on a signal supplied to a first input terminal, a signal supplied to a second input terminal, and a voltage of a first node;a second output, connected to a first power source, to supply an emission control signal to a second output terminal based on signals supplied to the first input terminal, the first output terminal, and a third input terminal;a third output, connected to the first power source, to supply an inverted emission control signal to a third output terminal based on signals supplied to the first input terminal and the second output terminal;a first signal processor to control a voltage of the first node based on a signal supplied to a fourth input terminal; anda second signal processor to control the voltage of the first node based on the signal supplied to the second input terminal.2. The stage as claimed in claim 1 , wherein the first power source is to have a gate-off voltage.3. The stage as claimed in claim 1 , wherein:the first input terminal is to receive a first clock signal, ...

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Номер записи: 67
04-01-2018 дата публикации

System and method for external pixel compensation

Номер: US20180005578A1
Автор: Jesse A. Richmond, Mohammad B. Vahid Far, Yafei Bi
Принадлежит: Apple Inc

An electronic device includes a display panel. The display panel includes a number of pixels, each of which includes a driving thin-film-transistor (TFT) and a light-emitting diode. Compensation circuitry external to the display panel applies offset data to pixel data for each pixel of the plurality of pixels before the pixel data is provided to the plurality of pixels.

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Номер записи: 68
04-01-2018 дата публикации

ORGANIC LIGHT-EMITTING DISPLAY

Номер: US20180005581A1
Автор: Hong Sangpyo, KIM Sangkyu
Принадлежит: LG DISPLAY CO., LTD.

An organic light-emitting display organic light-emitting display includes a display panel having a plurality of pixels, a plurality of data lines that are connected to the pixels, and a plurality of gate lines that are connected to the pixels; and a data drive circuit having a plurality of digital-to-analog converters configured to generate an image data voltage and a sensing data voltage to be applied to the pixels, a plurality of sensing units configured to sense an organic light-emitting diode (OLED) operating point voltage of the pixels, and a plurality of connecting switches configured to selectively connect the digital-to-analog converters and the sensing units to the data lines. 1. An organic light-emitting display , comprising:a display panel having a plurality of pixels, a plurality of data lines that are connected to the pixels, and a plurality of gate lines that are connected to the pixels; and a plurality of digital-to-analog converters configured to generate an image data voltage and a sensing data voltage to be applied to the pixels,', 'a plurality of sensing units configured to sense an organic light-emitting diode (OLED) operating point voltage of the pixels, and', 'a plurality of connecting switches configured to selectively connect the digital-to-analog converters and the sensing units to the data lines., 'a data drive circuit having2. The organic light-emitting display of claim 1 , wherein the digital-to-analog converters supply the image data voltage to the data lines in an image display operation.3. The organic light-emitting display of claim 2 , wherein the connecting switches connect the digital-to-analog converters to the data lines in the image display operation.4. The organic light-emitting display of claim 1 , wherein the digital-to-analog converters supply the sensing data voltage to the data lines for sensing the OLED operating point voltage of the pixels.5. The organic light-emitting display of claim 4 , wherein the connecting switches ...

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Номер записи: 69
04-01-2018 дата публикации

ELECTROLUMINESCENT DISPLAY

Номер: US20180005582A1
Автор: TAKAHARA Hiroshi
Принадлежит: JOLED INC.

An EL display includes a flexible board including: a plurality of connection terminals arranged at one side for connection with panel lines formed on a panel board; terminal connection lines for connecting points inside the flexible board with the connection terminals; serial connection lines for connecting between two or more of the connection terminals. On the flexible board: driver output terminals of each of gate driver ICs are connected to terminal connection lines; driver input terminals of the gate driver IC are connected to either terminal connection lines or the serial connection lines; and control terminals for performing logic setting of the gate driver IC are each arranged between connection terminals and driver input terminals to which the serial connection lines are connected. As a result, the number of control lines to be formed on the flexible board in serial connection is reduced. 1. An EL display comprising:a panel board including a display screen on which pixels each including an EL element are arranged in a matrix;gate signal lines arranged on a per pixel row basis;source signal lines arranged on a per pixel column basis;gate driver circuits mounted on a flexible board; anda source driver circuit which outputs a video signal to the source signal lines,wherein each of the gate driver circuits includes gate signal output terminals, driver terminals, and control terminals,first connection parts, gate signal connection parts, second connection parts, and third connection parts are arranged on the flexible board, andthe flexible board includes (i) terminal connection lines which connect the gate signal output terminals and the gate signal connection parts, (ii) terminal connection lines which connect the control terminals and the second connection parts, and (iii) serial connection lines which connect the first connection parts, the driver terminals, and the third connection parts.2. The EL display according to claim 1 ,wherein each of the gate driver ...

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Номер записи: 70
04-01-2018 дата публикации

DISPLAY DEVICE

Номер: US20180005585A1
Автор: JEON Yu Jin, Kim Byung Sun, KIM YANG WAN, KWON Sun Ja, Lee Jae Yong, LEE Su Jin, PARK Hyun Ae, PARK HYUNG JUN
Принадлежит:

A display device includes a substrate having a first pixel region, a second pixel region having a smaller area than the first pixel region, the second pixel region being connected to the first pixel region, and a peripheral region surrounding the first pixel region and the second pixel region, a first pixel and a second pixel respectively at the first and second pixel regions, a first line connected to the first pixel and a second line connected to the second pixel, and a dummy unit in the peripheral region, the dummy unit overlapping with at least one of the first and second lines, the dummy unit being configured to compensate for a difference between a load value of the first line and a load value of the second line, wherein the dummy unit includes at least two sub-dummy units spaced from each other. 1. A display device comprising:a substrate having a first pixel region, a second pixel region having a smaller area than the first pixel region, the second pixel region being connected to the first pixel region, and a peripheral region surrounding the first pixel region and the second pixel region;a first pixel and a second pixel respectively at the first and second pixel regions;a first line connected to the first pixel and a second line connected to the second pixel; anda dummy unit in the peripheral region, the dummy unit overlapping with at least one of the first and second lines, the dummy unit being configured to compensate for a difference between a load value of the first line and a load value of the second line,wherein the dummy unit comprises at least two sub-dummy units spaced from each other.2. The display device of claim 1 , wherein the peripheral region has:a first peripheral region around the first pixel region;a second peripheral region around the second pixel region; andan additional peripheral region adjacent to the first pixel region and the second peripheral region.3. The display device of claim 2 , wherein a length of the first line is greater ...

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Номер записи: 71
04-01-2018 дата публикации

DISPLAY DEVICE AND METHOD FOR CONTROLLING PEAK LUMINANCE OF THE SAME

Номер: US20180005586A1
Автор: Lee Jin-Ho, PARK Seung-ho
Принадлежит:

A display device according to example embodiments includes an image analyzer configured to calculate contrast and load of an image of a frame based on R, G, and B image data input corresponding to the frame, an image processor configured to control a peak control coefficient applied to W image data to adaptively control peak luminance based on the contrast and the load, and to respectively generate R′, G′, and B′ image data by subtracting a product of the W image data and the peak control coefficient from each of the R, G, and B image data, a display panel including a plurality of pixels, a data driver configured to generate a data signal based on the R′, G′, B, and W image data, and to provide the data signal to the display panel, and a scan driver configured to provide a scan signal to the display panel. 1. A display device , comprising:an image analyzer configured to calculate contrast and load of an image of a frame based on R, G, and B image data input corresponding to the frame;an image processor configured to control a peak control coefficient applied to W image data to adaptively control peak luminance based on the contrast and the load, and to respectively generate R′, G′, and B′ image data by subtracting a product of the W image data and the peak control coefficient from each of the R, G, and B image data;a display panel including a plurality of pixels;a data driver configured to generate a data signal based on the R′, G′, B, and W image data, and to provide the data signal to the display panel; anda scan driver configured to provide a scan signal to the display panel.2. The display device of claim 1 , wherein the peak luminance increases when the peak control coefficient decreases.3. The display device of claim 1 , wherein the image analyzer determines the image of the frame as a normal image when the contrast is less than a predetermined first reference or the load is greater than a predetermined second reference; andwherein the image analyzer determines ...

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Номер записи: 72
04-01-2018 дата публикации

ORGANIC LIGHT EMITTING DIODE DISPLAY

Номер: US20180005601A1
Автор: CHOI SeungChan, Kim Kitae, LEE Junho, RYU SungBin, YOON Siu
Принадлежит: LG DISPLAY CO., LTD.

Provided is an organic light emitting display. The organic light emitting display can include a gate driving circuit configured to supply a gate signal through each of a plurality of gate lines connected to a display panel, and a luminance control unit between the gate driving circuit and the display panel and electrically connected to the plurality of gate lines and a power supply line. A gate signal is supplied to the pixels in a distributed manner during a plurality of refresh periods. Therefore, it is possible to reduce a luminance decrease in the pixels during the entire refresh period. 1. An organic light emitting display comprising:a gate driving circuit that supplies a gate signal through each of a plurality of gate lines connected to a display panel; anda luminance control unit between the gate driving circuit and the display panel, and electrically connected to the plurality of gate lines and a power supply line, a first switching element electrically connected to each of the plurality of gate lines;', 'a second switching element electrically connected between each of the plurality of gate lines and the power supply line; and', 'a luminance control signal line electrically connected to the first switching element and the second switching element., 'the luminance control unit including2. The organic light emitting display according to claim 1 , wherein the luminance control unit further includes an inverter that controls the first switching element and the second element to operate reversely to each other.3. The organic light emitting display according to claim 2 , wherein the luminance control signal line includes a first luminance control signal line and a second luminance control signal line claim 2 ,the first luminance control signal line is connected to a gate of the first switching element, andthe second luminance control signal line is connected to a gate of the second switching element in an output node of the inverter connected to the first ...

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Номер записи: 73
02-01-2020 дата публикации

DISPLAY PANEL AND TESTING METHOD THEREOF, DISPLAY DEVICE

Номер: US20200005692A1
Автор: HU QI, JING Hui, LIAO Weijing
Принадлежит:

A display panel and a testing method thereof, a display device are provided. The display panel includes a plurality of data lines and a plurality of test signal lines, an even number of adjacent data lines are grouped as a data line group, one test signal line is provided at a middle position of the data line group, a plurality of data line groups are in one-to-one correspondence with the plurality of test signal lines, each of the plurality of test signal lines includes a first extending part and a plurality of second extending parts coupled to the first extending part, and each of the second extending parts extends symmetrically at both sides of the first extending part. 1. A display panel , comprising a plurality of gate lines , a plurality of data lines , a plurality of test signal lines , and a plurality of pixel units , wherein the plurality of pixel units are provided in regions arranged in rows and columns formed by intercrossing of the plurality of gate lines and the plurality of data lines , and each of the plurality of pixel units comprises an organic light emitting diode (OLED) , whereinan even number of adjacent data lines among the plurality of data lines are grouped as a data line group such that the plurality of data lines are grouped as a plurality of data line groups, one test signal line is provided at a middle position of the data line group such that the numbers of data lines at both sides of the test signal line are same,the plurality of test signal lines are provided at a different layer of the display panel than the plurality of data lines, and the plurality of data line groups are in one-to-one correspondence with the plurality of test signal lines, each of the plurality of test signal lines comprises one first extending part and a plurality of second extending parts coupled to the first extending part;the first extending part extends along a first direction parallel to the plurality of data lines;each of the second extending parts extends ...

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Номер записи: 74
02-01-2020 дата публикации

APPARATUS AND METHOD FOR SENSING DISPLAY PANEL

Номер: US20200005694A1
Автор: Chang Hua-Gang, LIN Chun-Chieh, Liu Shang-I
Принадлежит: NOVATEK MICROELECTRONICS CORP.

An apparatus and a method for sensing a display panel are provided. The apparatus includes a source driving circuit and a sensing circuit. The source driving circuit is coupled to data lines to drive the pixel circuits according to a display period comprising frame periods. The sensing circuit is coupled to a plurality of pixel circuits. The sensing circuit senses characteristics of the pixel circuits in the test data periods of the display period. The test data periods are periodically arranged in the display period. In each of the test data periods, a corresponding pixel circuit receives test data, and the sensing circuit senses the electrical characteristic of the corresponding pixel circuit. In the scan-line periods of each of the frame periods, the corresponding pixel circuit receives display data from a corresponding data line, and the sensing circuit does not sense the corresponding pixel circuit. 1. An apparatus for sensing a display panel , wherein the display panel comprises a plurality of scan lines , a plurality of data lines and a plurality of pixel circuits , a data input terminal and a gate terminal of a corresponding pixel circuit of the pixel circuits are coupled to a corresponding data line of the data lines and a corresponding scan line of the scan lines respectively , and the apparatus comprises:a source driving circuit configured to be coupled to the data lines to drive the pixel circuits according to a display period comprising a plurality of frame periods, wherein each of the frame periods comprises a plurality of display data periods, wherein the display period further comprises a plurality of test data periods periodically arranged in the display period and each existing between two of the frame periods; anda sensing circuit, configured to be coupled to the pixel circuits, and configured to sense characteristics of the pixel circuits in the test data periods of the display period;wherein in each of the test data periods within the display ...

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Номер записи: 75
02-01-2020 дата публикации

Display Panel and Display Device

Номер: US20200005701A1
Автор: Ying Sun, Yumin Xu, ZHIPENG Huang, Zhiwei Zheng, Zhonghuai CHEN
Принадлежит: Xiamen Tianma Microelectronics Co Ltd

Provided are a display panel and display device. The display panel includes a display area and a non-display area. The display panel further includes multiple cascaded shift registers disposed in the non-display area and multiple scanning lines disposed in the display area. Each shift register is connected to a corresponding scanning line. The shift registers include multiple first shift registers and multiple second shift registers. The first shift registers are capable of unidirectional scanning, and the second shift registers are capable of bidirectional scanning. The display area includes a first display area and a second display area. Each of scanning lines in the first display area are connected to a respective one of the plurality of first shift registers, and each of the at least part of the scanning lines in the second display area are connected to the second shift registers.

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Номер записи: 76
02-01-2020 дата публикации

ORGANIC LIGHT-EMITTING DISPLAY PANEL, METHOD FOR DRIVING THE SAME, AND ORGANIC LIGHT-EMITTING DISPLAY DEVICE

Номер: US20200005706A1
Автор: GAO Yana, LI Yue, XIANG Dongxu, ZHOU Xingyao, ZHU Renyuan
Принадлежит:

The present disclosure provides an organic light-emitting display panel, a method for driving the display panel, and an organic light-emitting display device. In the organic light-emitting display panel, a display area and a peripheral area surrounding the display area are provided on the base substrate, and the display area includes a display sub-area and a fingerprint recognition sub-area. A plurality of pixel driving circuits and a plurality of organic light-emitting components are arranged in the display area, and the organic light-emitting components are electrically connected to the pixel driving circuits in one-to-one correspondence. The first emission driving circuit is arranged in the peripheral area and electrically connected to pixel driving circuits arranged in the display sub-area. The second emission driving circuit is arranged in the peripheral area and electrically connected to pixel driving circuits arranged in the fingerprint recognition sub-area. 1. An organic light-emitting display panel , comprising:a base substrate, wherein a display area and a peripheral area surrounding the display area are provided on the base substrate, and the display area comprises a display sub-area and a fingerprint recognition sub-area;a plurality of pixel driving circuits and a plurality of organic light-emitting components, wherein the plurality of pixel driving circuits and the plurality of organic light-emitting components are arranged in the display area, and the plurality of organic light-emitting components is electrically connected to the plurality of pixel driving circuits in one-to-one correspondence;a first emission driving circuit arranged in the peripheral area and electrically connected to at least one of the plurality of pixel driving circuits that is arranged in the display sub-area;a second emission driving circuit arranged in the peripheral area and electrically connected to at least one of the plurality of pixel driving circuits that is arranged in ...

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Номер записи: 77
02-01-2020 дата публикации

Display device

Номер: US20200005709A1
Автор: Ji Su Na, Ki Wook Kim, Kwang Min Kim, Min Woo Byun, Yang Wan Kim
Принадлежит: Samsung Display Co Ltd

Provided are a display device. The display device comprises: a display unit defined by a display area and a non-display area located outside the display area, and including pixels arranged in the display area, first sensing wirings electrically connected to the pixels, and auxiliary voltage wirings electrically separated from the pixels; and a sensing unit electrically connected to the first sensing wirings, wherein the first sensing wirings and the auxiliary voltage wirings extend in a first direction and are sequentially arranged along a second direction perpendicular to the first direction at first intervals, the first sensing wirings are spaced apart from each other along the second direction at second intervals greater than the first intervals and are electrically separated from each other, and the auxiliary voltage wirings are electrically connected to each other.

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Номер записи: 78
02-01-2020 дата публикации

Display device and driving method for display device

Номер: US20200005714A1
Автор: Ilin WU
Принадлежит: Japan Display Inc

A display device includes a first pixel arranged with a first light emitting element having a first pixel electrode and a common electrode, and a drive transistor having an input/output terminal, one end of the input/output terminal being connected to the first pixel electrode, and a second pixel adjoins the first pixel electrode, and is arranged with a second light emitting element having a second pixel electrode and the common electrode, wherein the first pixel electrode and the second pixel electrode are connected via first switch.

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Номер записи: 79
02-01-2020 дата публикации

SMART PIXEL LIGHTING AND DISPLAY MICROCONTROLLER

Номер: US20200005720A1
Автор: Bibl Andreas, McGroddy Kelly, Sakariya Kapil V.
Принадлежит:

A light emitting assembly is described. In one embodiment, one or more light emitting diode (LED) devices and one or more microcontrollers are bonded to a same side of a substrate, with the one or more microcontrollers to switch and drive the one or more LED devices. 1. (canceled)2. A light emitting assembly comprising:an array of light emitting diode (LED) device and an array of microcontroller chips arranged in an array of micro-matrices, each micro matrix including a matrix of light emitting diode (LED) devices electrically connected with a microcontroller chip;wherein each microcontroller chip includes a first output pin that is electrically coupled with a first string of LED devices to drive the first string of LED devices, and a second output pin that is electrically coupled with a second string of LED devices to drive the second string of LED devices.3. The assembly of claim 2 , further comprising one or more column drivers electrically connected with the array of microcontroller chips.4. The assembly of claim 3 , further comprising one or more row drivers electrically connected with the array of microcontroller chips.5. The assembly of claim 3 , further comprising distribution lines to electrically connect the array of microcontroller chips and the array of LED devices.6. The assembly of claim 5 , wherein each LED device in the array of LED devices has a maximum length or width dimension of 1 to 100 μm.7. The assembly of claim 2 , further comprising distribution lines to electrically connect the array of microcontroller chips and the array of LED devices claim 2 , wherein the distribution lines electrically connect a plurality of microcontroller chips of the array of microcontroller chips to one another.882. The assembly of claim 7 , wherein each LED device in the array of LED devices has a maximum length or width dimension of 1 to 100 m.9. The assembly of claim 8 , wherein the array of LED devices is bonded to landing pads in electrical connection with the ...

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Номер записи: 80
02-01-2020 дата публикации

SHIFT REGISTER, GATE DRIVING CIRCUIT AND DRIVING METHOD, AND DISPLAY APPARATUS

Номер: US20200005881A1
Автор: Huang Fei, LIU Bailing, Liu Peng, Qiao Yun, SUN JIAN, Wang Zhen, WANG Zhengkui, Zhang Han, Zhang Jianjun, ZHANG KAI
Принадлежит:

A shift register includes a first input sub-circuit, a pull-up control sub-circuit, and a pull-down control sub-circuit. The first input sub-circuit is configured to transmit a voltage from the first signal terminal to the first node under control of the first voltage terminal. The pull-up control sub-circuit is configured to be in a turn-on or turn-off state under control of the first node. The pull-down control sub-circuit is configured to transmit a voltage from the third voltage terminal to the pull-down node under control of the first node, transmit the voltage from the third voltage terminal to the pull-down node under control of the signal output terminal, and transmit a voltage from the first clock signal terminal to the pull-down node under control of the first clock signal terminal. 123-. (canceled)24. A shift register , comprising a first input sub-circuit , a pull-up control sub-circuit , a pull-down control sub-circuit , and a pull-down sub-circuit , whereinthe first input sub-circuit is coupled to a first signal terminal, a first voltage terminal and a first node, and the first input sub-circuit is configured to transmit a voltage from the first signal terminal to the first node under control of a voltage from the first voltage terminal;the pull-up control sub-circuit is coupled to the first node, a second voltage terminal and a second node, and the pull-up control sub-circuit is configured to be in a turn-on or turn-off state under control of a voltage on the first node, and transmit a voltage from the second voltage terminal to the second node when the pull-up control sub-circuit is in the turn-on state;the pull-down control sub-circuit is coupled to the first node, a third voltage terminal, a first clock signal terminal, a signal output terminal and a pull-down node, and the pull-down control sub-circuit is configured to transmit a voltage from the third voltage terminal to the pull-down node under control of a voltage on the first node, transmit ...

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Номер записи: 81
04-01-2018 дата публикации

Coplanar Type Oxide Thin Film Transistor, Method of Manufacturing the Same, and Display Panel and Display Device Using the Same

Номер: US20180006056A1
Автор: BAE JongUk, BAE JunHyeon, Jang YongHo, JI Kwanghwan, NOH Jiyong, YUN Pilsang
Принадлежит:

Disclosed are an oxide thin film transistor (TFT), a method of manufacturing the same, and a display panel and a display device using the same, in which a first conductor and a second conductor are provided at end portions of a semiconductor layer formed of oxide semiconductor. The first conductor and second conductor are electrically connected to a first electrode and a second electrode, and covered by a gate insulation layer. The oxide TFT includes a semiconductor layer provided on a buffer and including an oxide semiconductor, a gate insulation layer covering the semiconductor layer and the buffer, a gate electrode provided on the gate insulation layer to overlap a portion of the semiconductor layer, and a passivation layer covering the gate and the gate insulation layer. 1. An oxide thin film transistor (TFT) comprising:a first substrate;a light shielding layer provided on the first substrate;a buffer provided on the light shielding layer;a semiconductor layer provided on the buffer, the semiconductor layer including an oxide semiconductor material and comprising an active area, a first conductor adjacent to a first end of the active area, and a second conductor adjacent to a second end of the active area;a gate insulation layer covering the semiconductor layer and the buffer;a gate electrode provided on the gate insulation layer and overlapping a portion of the semiconductor layer; anda passivation layer covering the gate electrode and the gate insulation layer,wherein a resistance of the active area is different from a resistance of the first conductor and a resistance of the second conductor, andwherein a width of the active area is aligned with a width of the light shielding layer.2. The oxide TFT of claim 1 , wherein the active area is aligned with the gate electrode.3. (canceled)4. The oxide TFT of claim 1 , wherein a portion of the buffer covering an end of the light shielding layer has an inclined surface claim 1 , and wherein the gate insulation layer ...

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Номер записи: 82
04-01-2018 дата публикации

DISPLAY DEVICE

Номер: US20180006105A1
Автор: JEON Yu Jin, Kim Byung Sun, KIM YANG WAN, KWON Sun Ja, Lee Jae Yong, LEE Su Jin, PARK Hyun Ae, PARK HYUNG JUN
Принадлежит:

Disclosed is a display device, including: a substrate including a pixel area and a peripheral area; pixels provided in the pixel area as a plurality of pixel rows and a plurality of pixel columns; data lines configured to provide a data signal; scan lines configured to provide a scan signal; first power lines configured to provide a power source to the pixel columns; and a second power line connected to the first power lines and disposed in the peripheral area. A scan line connected to an ipixel row may apply a scan signal to the ipixel row, and a branched line branched from the scan line may apply an initialization signal to a kpixel row (k≠i). A branched point of the scan line is disposed between a pixel most adjacent to the second power line of the ipixel row and the second power line. 1. A display device , comprising:a substrate including a pixel area and a peripheral area;pixels provided in the pixel area of the substrate, and disposed in a plurality of pixel rows and a plurality of pixel columns;data lines configured to provide a data signal to the pixel columns;scan lines configured to provide a scan signal to the pixel rows;emission control lines configured to provide an emission control signal to the pixel rows;first power lines configured to provide a power source to the pixel columns; anda second power line connected to the first power lines and disposed in the peripheral area,{'sup': th', 'th', 'th, 'wherein a scan line connected to an ipixel row (i is a natural number) applies a scan signal to the ipixel row, and a branched line branched from the scan line applies an initialization signal to a kpixel row (k is a natural number, and k≠i), and'}{'sup': 'th', 'a branched point of the scan line is disposed between a pixel (hereinafter, referred to as a “leading pixel”) that is most adjacent to the second power line of the ipixel row and the second power line.'}2. The display device of claim 1 , wherein the kpixel row claim 1 , to which the scan line applies ...

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Номер записи: 83
07-01-2021 дата публикации

Array substrate, display panel, and display device

Номер: US20210005692A1
Автор: Can Yuan, Yongqian Li, Zhidong Yuan
Принадлежит: BOE Technology Group Co Ltd, Hefei BOE Joint Technology Co Ltd

An array substrate, a display panel and a display device are provided. The array substrate includes a plurality of pixel units arranged in an array, each pixel unit includes a first sub-pixel, a second sub-pixel and a third sub-pixel, and each of the first, second and third sub-pixels includes a pixel circuit including a switching transistor, a driving transistor, a sensing transistor, a storage capacitor and a light-emitting device. The first sub-pixels, the second sub-pixels and the third sub-pixels included in each row of the array are controlled by four scanning lines, and at least one of the four scanning lines is shared by the row of the array and another row of the array adjacent to the row of the array. Each column of pixel units of the array are coupled to a same data line.

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Номер записи: 84
07-01-2021 дата публикации

DISPLAY DEVICE

Номер: US20210005697A1
Автор: CHO Seunghwan, CHOI Jonghyun, JI Seonbeom, KANG Kinyeng, KIM Hyun, SONG Seungmin, YANG Taehoon
Принадлежит:

A display device including: a first data line arranged in a display area of a substrate and extending in a first direction; a second data line arranged in the display area and extending in the first direction; a connecting line arranged in the display area and including a first portion parallel to the first data line, a third portion parallel to the second data line, and a second portion between the first portion and the third portion, wherein the connecting line is electrically connected to the second data line; and an auxiliary line overlapping the first data line or the second data line. 1. A display device , comprising:a first data line arranged in a display area of a substrate and extending in a first direction;a second data line arranged in the display area and extending in the first direction;a connecting line arranged in the display area and including a first portion parallel to the first data line, a third portion parallel to the second data line, and a second portion between the first portion and the third portion, wherein the connecting line is electrically connected to the second data line; andan auxiliary line overlapping the first data line or the second data line.2. The display device of claim 1 , whereinthe auxiliary line is located on a same layer as the connecting line, andthe auxiliary line and the connecting line are spaced apart from each other.3. The display device of claim 1 , wherein the auxiliary line comprises:a first auxiliary line overlapping the first data line; anda second auxiliary line overlapping the second data line.4. The display device of claim 3 , whereina length of the first auxiliary line is different from a length of the second auxiliary line.5. The display device of claim 3 , further comprising:a first power line adjacent to the first data line; anda second power line adjacent to the second data line,wherein the first auxiliary line is connected to the first power line, and the second auxiliary line is connected to the second ...

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Номер записи: 85
03-01-2019 дата публикации

Pixel Circuit, Display Panel and Driving Method Thereof

Номер: US20190005877A1
Автор: DONG Tian
Принадлежит: BOE Technology Group Co., Ltd.

A pixel circuit, a display panel and a driving method are described. The pixel circuit includes: a light-emitting circuit configured for emitting light during a working period; a driving circuit configured for driving the light-emitting circuit; a compensating circuit configured for compensating the driving circuit; a data writing circuit configured for writing data to the driving circuit; a reset circuit configured for resetting the compensating circuit and the driving circuit; a first light-emitting control circuit configured for controlling ON and OFF of the light-emitting circuit. 1. A pixel circuit , comprising:a light-emitting circuit configured for emitting light during a working period;a driving circuit configured for driving the light-emitting circuit;a compensating circuit configured for compensating the driving circuit;a data writing circuit configured for writing data to the driving circuit;a reset circuit configured for resetting the compensating circuit and the driving circuit;a first light-emitting control circuit configured for controlling ON and OFF of the light-emitting circuit;a first voltage terminal and a second voltage terminal configured for providing light-emitting voltages for the light-emitting circuit;a reset voltage terminal configured for providing a resetting voltage for the reset circuit;a reference voltage terminal configured for providing a compensating voltage for the compensating circuit;a scan control terminal configured for providing a signal that controls ON and OFF of the compensating circuit and the data writing circuit;a data signal terminal configured for providing a data signal for the data writing circuit;a reset control terminal configured for providing a signal that controls ON and OFF of the reset circuit; anda first light-emitting control terminal configured for providing a signal that controls ON and OFF of the first light-emitting control circuit.2. The pixel circuit according to claim 1 , wherein claim 1 ,the ...

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Номер записи: 86
03-01-2019 дата публикации

DISPLAY DEVICE

Номер: US20190005880A1
Автор: Kaneko Yoshiyuki, Sato Toshihiro
Принадлежит:

A display module including a substrate having a plurality of pixels, a data line that supplies a data signal to a pixel, a current supply line that supplies electric current to the pixel, a data driving circuit that supplies a data signal to the data line, and a gate driving circuit thereon. The plurality of pixels are arranged in a display area of the substrate, and each of the plurality of pixels includes a light emitting device, a first thin film transistor connected to the data line that supplies the data signal, a second thin film transistor connected to the current supply line, and a capacitor. The light emitting device includes a first electrode layer connected to the second thin film transistor, an organic layer formed on the first electrode layer, and a second electrode layer formed on the organic layer. 1. A display device comprising:a display region comprising pixels;scanning lines configured to select the pixels;data lines configured to supply data signals to the pixels;current supply lines configured to supply electric current to the pixels;a current supply bus line connected to the current supply lines;a current drain line disposed outer than the current supply bus line;a gate driving circuit configured to drive the scanning lines; anda data driving circuit configured to drive the data lines,wherein each of the plurality of pixels comprises:a light emitting element;a thin film transistor between one of the current supply lines and the light emitting element; anda capacitor configured to store a gate voltage of the thin film transistor,wherein the light emitting element includes:a first electrode layer connected to the thin film transistor;an organic layer above the first electrode layer; anda second electrode layer above the organic layer,wherein the second electrode layer is connected to the current drain line located outside the display region and formed on a layer at a same level of the first electrode layer.2. The display device of claim 1 , ...

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Номер записи: 87
03-01-2019 дата публикации

DISPLAY PANEL AND ELECTROLUMINESCENCE DISPLAY USING THE SAME

Номер: US20190005883A1
Автор: KIM Kyujin
Принадлежит:

The disclosure relates to display panel and electroluminescence display using the same. The display panel includes: a sub-pixel, which comprises a light-emitting element and a driving element for driving the light-emitting element, the light-emitting element emitting light by a current in the driving element during a driving phase; and a power switching circuit configured to supply a first driving voltage to the sub-pixel during the driving phase in an active period and a blanking interval, and supply a second driving voltage to the sub-pixel during a data writing phase of the active period and during resetting, sensing, and data writing phases of the blanking interval. 1. A display panel , which displays frame data during a frame period including an active period and a blanking interval , and modulates data of an input image based on a result of sensing electrical characteristics of pixels in the blanking interval , the display panel comprising:a sub-pixel, the sub-pixel including a light-emitting element and a driving element configured to drive the light-emitting element to emit light based on a current in the driving element during a driving phase; anda power switching circuit configured to supply a first driving voltage to the sub-pixel during the driving phase in the active period and the blanking interval, and supply a second driving voltage to the sub-pixel during a data writing phase of the active period and during resetting, sensing, and data writing phases of the blanking interval.2. The display panel of claim 1 , wherein the first driving voltage is supplied to a first power line claim 1 , and the second driving voltage is supplied to a second power line which is separate from the first power line.3. The display panel of claim 1 , wherein the sub-pixel further includes a capacitor connected to the driving element claim 1 , the first driving voltage is supplied to a first electrode of the capacitor and a first electrode of the driving element during the ...

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Номер записи: 88
03-01-2019 дата публикации

DISPLAY DEVICE THAT SWITCHES LIGHT EMISSION STATES MULTIPLE TIMES DURING ONE FIELD PERIOD

Номер: US20190005887A1
Автор: Jinta Seiichiro, Tanikame Takao
Принадлежит:

A scan driving circuit includes a shift register unit and a logic circuit unit. The start of a start pulse of an output signal STof a p+1'th shift register is situated between the start and end of a start pulse of the output signal STof a p'th shift register, and one each of a first enable signal through a Q'th enable signal exist in sequence between the start of the start pulse of the output signal STand the start of the start pulse of the output signal ST. The operations of a (p′, q)'th NAND circuit are restricted based on period identifying signals, such that the NAND circuit generates scanning signals based only on a portion of the output signal STcorresponding to the first start pulse, the signal obtained by inverting the output signal ST, and the q'th enable signal EN. 111-. (canceled)12. A display apparatus comprising:a driving circuit configured to receive a pulse for an input signal, the driving circuit is configured to transition a logic level of a first control signal after receiving the pulse for the input signal and transition a logic level of a second control signal after receiving the pulse for the input signal;a first transistor that is controllable by the second control signal to electrically disconnect a data signal line from a source/drain region of a second transistor, the first transistor is controllable by the second control signal to electrically connect the data signal line to the source/drain region of the second transistor;a first switch that is controllable by the second control signal to electrically disconnect a gate of the second transistor from a different source/drain region of the second transistor, the first switch is controllable by the second control signal to electrically connect the gate of the second transistor to the different source/drain region of the second transistor;a second switch that is controllable by the first control signal to electrically disconnect the gate of the second transistor from a first voltage line, the ...

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Номер записи: 89
03-01-2019 дата публикации

Driving circuit of display apparatus and display apparatus

Номер: US20190005905A1
Автор: Yu-Jen Chen
Принадлежит: Chongqing HKC Optoelectronics Technology Co Ltd, HKC Co Ltd

A driving circuit of a display apparatus and a display apparatus are provided. A first gate signal output module of the driving circuit is electrically connected to a first pixel unit group through first gate lines. A second gate signal output module is electrically connected to a second pixel unit group through second gate lines. A data signal output module is electrically connected to the first pixel unit group through first data lines. A second data signal output module is electrically connected to the second pixel unit groups through second data lines. When displaying an image frame, gate driving signals and data signals are outputted to the first pixel unit group and the second pixel unit group simultaneously.

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Номер записи: 90
07-01-2021 дата публикации

THIN FILM TRANSISTOR AND METHOD FOR MANUFACTURING THE SAME, AND DISPLAY PANEL

Номер: US20210005726A1
Автор: Li Hui, Long Chunping
Принадлежит:

The present disclosure provides a thin film transistor, a display panel and a method for manufacturing the thin film transistor. The thin film transistor includes an active layer and a source-drain electrode layer, the source-drain electrode layer includes a first electrode having at least one first electrode strip and a second electrode having at least one second electrode strip, the at least one first electrode strip and the at least one second electrode strip are alternately arranged at intervals, and at least an insulating part of a layer where the active layer is located is provided with an insulating material, and the insulating part is located at an orthographic projection of at least a part of a region between a free end of the first electrode strip, which is proximal to the second electrode, and the second electrode, on the layer where the active layer is located. 1. A thin film transistor , comprising an active layer and a source-drain electrode layer , wherein the active layer is made of a semiconductor material , the source-drain electrode layer comprises a first electrode and a second electrode , the first electrode comprises at least one first electrode strip , the second electrode comprises at least one second electrode strip , the at least one first electrode strip and the at least one second electrode strip are alternately arranged at intervals ,at least an insulating part of a layer where the active layer is located is provided with an insulating material, and the insulating part is located at an orthographic projection of at least a part of a region between a free end of the first electrode strip, which is proximal to the second electrode, and the second electrode, on the layer where the active layer is located; and/orat least an insulating part of a layer where the active layer is located is provided with an insulating material, and the insulating part is located at an orthographic projection of at least a part of a region between a free end of ...

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Номер записи: 91
02-01-2020 дата публикации

DISPLAY DEVICE

Номер: US20200006398A1
Автор: ISHII Tatsuya, YAMAMOTO Koji
Принадлежит:

To make the dimension of an electrostatic protection circuit small with the same maintained high in sensitivity. The electrostatic protection circuit is of the configuration that a first diode and a second diode are connected in series, wherein a semiconductor layer owned by each diode is configured to be sandwiched between a gate electrode and a conductive light shielding film. The light shielding film is formed to overlap with the semiconductor layer and has a wider area than the semiconductor layer. This results in having a gate covering the semiconductor layer from an upper side and a back gate covering the semiconductor layer from a lower side, so that the sensitivity can be maintained high irrespective of decreasing the electrostatic protection circuit in dimension. 1. A display device having a substrate and an electrostatic protection circuit formed on the substrate ,the electrostatic protection circuit having a configuration in which a first connection wire, a first diode, a third connection wire, a second diode, and a second connection wire are connected in series, and a third connection wire has a first terminal and a second terminal;whereinthe first diode has a first semiconductor layer and a first gate electrode, the first gate electrode has a first region connected to the third connection wire, and a second region overlapping the first semiconductor layer,the first diode has, as viewed in a cross-sectional view, a structure in which a first light shielding film is formed on the substrate, the first semiconductor layer is formed over the first light shielding film, and the second region of the first gate electrode layer is formed over the first semiconductor,the second diode has a second semiconductor layer and a second gate electrode, the second gate electrode has a third region connected to the third connection wire, and a fourth region overlapping the second semiconductor layer,the second diode has, as viewed in a cross-sectional view, a structure in ...

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Номер записи: 92
02-01-2020 дата публикации

ORGANIC LIGHT EMITTING DISPLAY PANEL AND ORGANIC LIGHT EMITTING DISPLAY APPARATUS

Номер: US20200006457A1
Автор: GU Jiachang
Принадлежит:

An organic light emitting display panel and an organic light emitting display apparatus are provided. The display panel includes an array substrate and a plurality of organic light emitting elements disposed on the array substrate, where the array substrate includes a substrate, and a first metal layer and a second metal layer sequentially disposed toward the plurality of organic light emitting elements; a first display area, a second display area, and a first bezel area, where, in a first direction, a number of organic light emitting elements in a row of organic light emitting elements in the first display area is smaller than a number of organic light emitting elements in a row of organic light emitting elements in the second display area, and the first bezel area is disposed adjacent to the first display area in the first direction; and a plurality of gate signal lines. 1. An organic light emitting display panel , comprising:an array substrate and a plurality of organic light emitting elements disposed on the array substrate, wherein the array substrate includes a substrate, and a first metal layer and a second metal layer sequentially disposed toward the plurality of organic light emitting elements;a first display area, a second display area, and a first bezel area, wherein, in a first direction, a number of organic light emitting elements in a row of organic light emitting elements in the first display area is smaller than a number of organic light emitting elements in a row of organic light emitting elements in the second display area, and the first bezel area is disposed adjacent to the first display area in the first direction; anda plurality of gate signal lines configured to supply gate driving signals to the organic light emitting elements, the gate signal lines in the first display area extending to the first bezel area,wherein the gate signal lines extending to the first bezel area include first gate signal lines disposed in the first metal layer and ...

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Номер записи: 93
03-01-2019 дата публикации

DISPLAY APPARATUS

Номер: US20190006431A1
Автор: JANG Jaehyung, LEE Yuna, PAK SangHoon, WON Sanghyuk
Принадлежит:

Disclosed is a display apparatus for preventing a short circuit defect from being caused by a residual metal layer. The display apparatus includes a first substrate including a display area where a plurality of pixels are provided and a non-display area surrounding the display area, a dam disposed in the non-display area to surround the display area, an encapsulation film disposed on the first substrate to cover the display area and to contact the dam, and a metal pattern disposed on the encapsulation film. The dam includes a first dam, a second dam disposed in an outer portion of the first dam, and a third dam connecting the first dam to the second dam. 1. A display apparatus , comprising:a first substrate including a display area, and a non-display area surrounding the display area;a plurality of pixels on the first substrate in the display area;a dam structure in the non-display area, the dam structure surrounding the display area;an encapsulation film on the first substrate, the encapsulation film covering the display area and contacting the dam structure; anda metal pattern on the encapsulation film, a first dam;', 'a second dam, the first dam being between the second dam and the display area; and', 'a third dam connecting the first dam to the second dam., 'wherein the dam structure comprises2. The display apparatus of claim 1 , further comprising:a plurality of pads disposed in a pad area, the pad area being positioned on one side of the non-display area,wherein the third dam is disposed between the plurality of pads in the pad area.3. The display apparatus of claim 2 , wherein the metal pattern contacts the plurality of pads.4. The display apparatus of claim 2 , wherein the dam structure includes a plurality of third dams claim 2 , the third dams respectively disposed between adjacent ones of the pads claim 2 , and a number of the plurality of third dams is less than number of the plurality of pads.5. The display apparatus of claim 1 , wherein a height of the ...

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Номер записи: 94
03-01-2019 дата публикации

LIGHT-EMITTING DISPLAY DEVICE

Номер: US20190006436A1
Автор: GONG Hyejin, HEO JoonYoung
Принадлежит:

The present disclosure provides a light-emitting display device including a first substrate, sub-pixels and contact holes. Each sub-pixel is positioned on the first substrate and has an emission area from which light is emitted. The contact is positioned in a hole in the emission area and serves to electrically connect a transistor of the sub-pixel to a light-emitting diode emitting light and an emission layer on the contact is to emit light in the same color as the light emitted from the emission area. 1. A light-emitting display device , comprising:a first substrate;sub-pixels positioned on the first substrate and having emission areas from which light is emitted; anda contact positioned in each emission area and serving to electrically connect a transistor of each sub-pixel to a light-emitting diode that emits light,wherein an emission layer on the contact emits light of the same color as light emitted from the emission area.2. The light-emitting display device according to claim 1 , wherein the contact includes a hole-filling layer filling the recessed inside thereof.3. The light-emitting display device according to claim 1 , further comprising:a lower electrode positioned on the contact;the emission layer positioned on the lower electrode; andan upper electrode positioned on the emission layer.4. The light-emitting display device according to claim 1 , wherein each of the sub-pixels includes:a transistor on the first substrate;a passivation layer positioned on the transistor;a planarization layer positioned on the passivation layer, and exposing an electrode of the transistor and having the contact positioned in the emission area;a first lower electrode positioned on the planarization layer and the contact and connected to the electrode of the transistor;a hole-filling layer filling the inside of the contact hole;a second lower electrode positioned on the first lower electrode and the hole-filling layer;the emission layer positioned on the second lower ...

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Номер записи: 95
03-01-2019 дата публикации

DISPLAY DEVICE AND METHOD OF MANUFACTURING DISPLAY DEVICE

Номер: US20190006617A1
Автор: MIURA Masanori, Murai Atsuhito
Принадлежит:

A display device includes a display region, an organic insulating layer, a display element, and a moisture-ingress barrier. The organic insulating layer has a groove outside the display region. The organic insulating layer extends over the display region and a region outside the groove. The display element is disposed in the display region and includes, in order, a first electrode, an organic layer, and a second electrode. The organic layer includes one or more moisture-reacting layers. The moisture-ingress barrier is disposed in the groove of the organic insulating layer, includes a material identical to the material of the one or more moisture-reacting layers, and has a thickness greater than the thickness of the one or more moisture-reacting layers. 1. A display device comprising:a display region;an organic insulating layer that has a groove outside the display region, and extends over the display region and a region outside the groove;a display element that is disposed in the display region and includes, in order, a first electrode, an organic layer, and a second electrode, the organic layer including one or more moisture-reacting layers; anda moisture-ingress barrier that is disposed in the groove of the organic insulating layer, includes a material identical to a material of the one or more moisture-reacting layers, and has a thickness greater than a thickness of the one or more moisture-reacting layers.2. The display device according to claim 1 , whereinthe moisture-ingress barrier comprises a coating film including the material identical to the material of the one or more moisture-reacting layers, andthe coating film has a thickness greater than the thickness of the one or more moisture-reacting layers.3. The display device according to claim 2 , further comprising:a substrate;a thin film transistor and a wiring line disposed on the substrate; andan inorganic insulating layer covering the thin film transistor and the wiring line, whereinthe organic ...

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Номер записи: 96
08-01-2015 дата публикации

Organic light emitting display and driving method thereof

Номер: US20150009198A1
Автор: Sung-Cheon Park
Принадлежит: Samsung Display Co Ltd

An organic light emitting display includes a plurality of pixels coupled to scan and data lines; a scan driver configured to supply a scan signal to the pixels through the scan lines; a data driver configured to supply a data signal to the pixels through the data lines; and a power supplier configured to supply first and second voltages to the pixels and a third voltage to at least one of the scan and the data driver, wherein the power supplier includes a first converter configured to convert an input voltage into the first voltage, a second converter configured to convert the input voltage into the second voltage, a third converter configured to receive the first voltage and convert the received first voltage into the third voltage, and a shutdown switch configured to control whether or not the first voltage generated by the first converter is supplied to the pixels.

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Номер записи: 97
08-01-2015 дата публикации

PIXEL CIRCUIT AND ORGANIC LIGHT EMITTING DISPLAY DEVICE USING THE SAME

Номер: US20150009199A1
Автор: In Hai-Jung, Park Yong-Sung
Принадлежит: Samsung Display Co., Ltd.

A pixel circuit including an organic light emitting diode (OLED), a first transistor, a first capacitor, a second transistor, a second capacitor and a third transistor is disclosed. In one aspect, the first transistor controls the amount of current flowing from a first power source to a second power source via the OLED, corresponding to a voltage at a first node. The first capacitor has a first terminal connected to a data line. The second transistor is connected between a second terminal of the first capacitor and a second node. The second capacitor is connected between the second node and the first node. The third transistor is connected between a fixed voltage source and the second terminal of the first capacitor, and has a turn-on period non-overlapping with that of the second transistor. 1. A pixel circuit , comprising:an organic light emitting diode (OLED);a first transistor configured to control the amount of current flowing from a first power source to a second power source via the OLED, corresponding to a voltage at a first node;a first capacitor configured to have a first terminal electrically connected to a data line;a second transistor electrically connected between a second terminal of the first capacitor and a second node;a second capacitor electrically connected between the second node and the first node; anda third transistor electrically connected between a fixed voltage source and the second terminal of the first capacitor, the third transistor configured to have a turn-on period that is non-overlapping with that of the second transistor.2. The pixel circuit of claim 1 , comprising:a fourth transistor electrically connected between the first power source and the second node, the fourth transistor having a turn-on period at least partially overlapping with that of the third transistor; anda fifth transistor electrically connected between the first node and an initialization power source, the fifth transistor having a turn-on period non-overlapping ...

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Номер записи: 98
20-01-2022 дата публикации

LIGHT EMISSION DRIVING CIRCUIT, SCAN DRIVING CIRCUIT AND DISPLAY DEVICE INCLUDING SAME

Номер: US20220020327A1
Автор: CHO Seongheon, Goh Joon-chul, KIM Soon-Dong, You Bonghyun
Принадлежит:

A light emission driving circuit includes a driving circuit configured to output a light emission driving signal to a first output terminal and output a switching signal to a first node in response to clock signals and a first carry signal, and a first masking circuit configured to output a second carry signal to a second output terminal in response to a masking clock signal, the light emission driving signal, and the first switching signal. The masking clock signal is a signal which is maintained at a first level during a normal mode and periodically changes during a low power mode. 1. A light emission driving circuit , comprising:a driving circuit configured to output a light emission driving signal to a first output terminal and output a switching signal to a first node in response to a plurality of clock signals and a first carry signal; anda masking circuit configured to output a second carry signal to a second output terminal in response to a masking clock signal, the light emission driving signal, and the switching signal,wherein the masking clock signal is a signal which is maintained at a first level during a normal mode and periodically changes during a low power mode.2. The light emission driving circuit of claim 1 , wherein the masking circuit comprises:a first masking transistor configured to transmit the masking clock signal to the second output terminal in response to the switching signal; anda second masking transistor configured to electrically connect the second output terminal to a first voltage terminal configured to receive a first voltage in response to the light emission driving signal.3. The light emission driving circuit of claim 2 , wherein the masking circuit outputs the masking clock signal as the second carry signal when the second masking transistor is turned off and the first masking transistor is turned on.4. The light emission driving circuit of claim 2 , wherein the driving circuit comprises:a first transistor configured to transmit ...

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Номер записи: 99
20-01-2022 дата публикации

PIXEL DRIVING CIRCUIT AND DRIVING METHOD THEREOF, DISPLAY DEVICE

Номер: US20220020330A1
Автор: Cao Xin, FAN Haoyuan, Hu Jing, KIM Heungsik, WANG Zifeng, Xu Haifeng, ZHU Yawei
Принадлежит:

A pixel driving circuit includes a reset sub-circuit, an input sub-circuit, a driving sub-circuit, a compensation sub-circuit and an voltage control sub-circuit. The reset sub-circuit is configured to be turned on in response to a control signal, and transmit a reference voltage to a first node to reset a voltage of the first node. The input sub-circuit is configured to transmit a data signal to a second node in response to a gate scan signal. The driving sub-circuit is configured to be turned on or off in response to a voltage of the first node; and to write the data signal and a compensation signal into a third node. The compensation sub-circuit is configured to transmit the data signal and the compensation signal to a fourth node in response to the gate scan signal. The voltage control sub-circuit is configured to control the voltage of the first node according to a voltage of the fourth node. The driving sub-circuit is further configured to output a driving signal according to the voltage of the first node. 1. A pixel driving circuit , comprising:a reset sub-circuit coupled to a control signal terminal, a reference signal terminal and a first node, wherein the reset sub-circuit is configured to be turned on in response to a control signal received at the control signal terminal, and transmit a reference voltage received at the reference signal terminal to the first node to reset a voltage of the first node;an input sub-circuit coupled to a gate scan signal terminal, a data signal terminal and a second node, wherein the input sub-circuit is configured to transmit a data signal received at the data signal terminal to the second node in response to a gate scan signal received at the gate scan signal terminal;a driving sub-circuit coupled to the first node, the second node and a third node, wherein the driving sub-circuit is configured to be turned on or off in response to a voltage of the first node; and to write the data signal and a compensation signal into the ...

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Номер записи: 100