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Применить Всего найдено 5. Отображено 5.
08-08-2012 дата публикации

Stereoscopic Organic Light Emitting Diode Displays

Номер: GB0002487722A
Автор: SMITH EUAN CHRISTOPHER [GB], SMITH EUAN CHRISTOPHER, EUAN CHRISTOPHER SMITH
Принадлежит:

A plurality of OLED pixels (204) in a stereoscopic display are each driven by an active matrix pixel circuit, each circuit comprising: at least one pixel select line (212), at least one programming line to program the circuit with pixel brightness data, at least one pixel driver transistor, left and right data storage capacitors (202a & 202b), wherein the data comprises left and right stereoscopic pixel data. A third line enables the left and right data to be selectively stored in the respective left and right data storage capacitors. At least one transistor drive control line enables the pixel to be driven with either the left or right data. The display can further comprise a second driver transistor such that the pixel driver comprises two transistors per pixel, each coupled to one of the left and right capacitors, and either i) a second drive control line to control the second transistor, wherein the first and second drive lines comprise first and second power supply lines each to provide ...

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Номер записи: 1
17-04-2013 дата публикации

OLED display circuit

Номер: GB0002495507A
Автор: SMITH EUAN CHRISTOPHER [GB], RANKOV ALEKSANDRA [GB], SMITH EUAN CHRISTOPHER, RANKOV ALEKSANDRA, EUAN CHRISTOPHER SMITH, ALEKSANDRA RANKOV
Принадлежит:

An OLED display comprises a plurality of pixel driver circuits (Fig. 5a; 402) on chiplets (Fig. 5a; 400), each pixel driver circuit comprising an output transistor 258 for driving an associated OLED pixel. A cascode transistor 302 on the chiplet is coupled between the output transistor drain and the anode of the associated OLED 252. A power supply is provided to the chiplet, defining a chiplet voltage range. A second connection of the associated OLED pixel is connected to an OLED voltage VCAT outside the chiplet voltage range. The OLED pixel is then driven using the pixel driver circuit over an OLED voltage range greater than the chiplet voltage range. The drain connection of the cascode transistor may be set at a voltage below a ground or negative (Vss) power supply to a chiplet. The effect of the cascode transistor 302 is to reduce voltage variations on the drain connection of driver transistor 258. The effect of parasitic diode between the output cascade and transistor drain is removed ...

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Номер записи: 2
11-09-2013 дата публикации

Touch-sensitive image display devices

Номер: GB0002499979A
Автор: SMITH EUAN CHRISTOPHER [GB], MCCAUGHAN GARETH JOHN [GB], CABLE ADRIAN JAMES [GB], ROUTLEY PAUL RICHARD [GB], BALLESTER RAUL BENET [GB], SMITH EUAN CHRISTOPHER, MCCAUGHAN GARETH JOHN, CABLE ADRIAN JAMES, ROUTLEY PAUL RICHARD, BALLESTER RAUL BENET, EUAN CHRISTOPHER SMITH, GARETH JOHN MCCAUGHAN, ADRIAN JAMES CABLE, PAUL RICHARD ROUTLEY, RAUL BENET BALLESTER
Принадлежит:

A touch sensitive image display device 100 comprises: an image projector 200 to project a displayed image 150 onto a display surface; a touch sensor light source 250 to project light defining a touch sheet 256 above the displayed image; a camera 258 directed to capture a touch sense image comprising light scattered from the touch sheet by an object approaching the displayed image; and a signal processor to process the touch sense image to identify a location of the object relative to the displayed image. The camera is able to capture a calibration image projected by the image projector, and the device includes a calibration module to calibrate locations in the captured touch sense image with reference to the displayed image. Also disclosed is an image projector configured to project the displayed image as a set of sequential sub-frames. Also disclosed is an image projector that projects onto a surface at an acute angle, and a device that includes distortion correction optics and a dichroic ...

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Номер записи: 3
26-03-2014 дата публикации

Touch sensing systems using a pair of beam deflectors controlled in tandem

Номер: GB0002506106A
Автор: SMITH EUAN CHRISTOPHER [GB], CABLE ADRIAN JAMES [GB], MASH PETER WILLIAM TUDOR [GB], MCCAUGHAN GARETH JOHN [GB], ROUTLEY PAUL RICHARD [GB], SMITH EUAN CHRISTOPHER, CABLE ADRIAN JAMES, MASH PETER WILLIAM TUDOR, MCCAUGHAN GARETH JOHN, ROUTLEY PAUL RICHARD, EUAN CHRISTOPHER SMITH, ADRIAN JAMES CABLE, PETER WILLIAM TUDOR MASH, GARETH JOHN MCCAUGHAN, PAUL RICHARD ROUTLEY
Принадлежит:

A touch sensing system comprises: an optical beam source 304 (such as an infrared laser) to provide an optical beam 308; a pair of controllable beam deflectors 302 comprising at least first and second beam deflectors, where the first beam deflector 302a is configured to deflect the optical beam through a first angle towards a touch sensing region, and the second beam deflector 302b is configured to deflect scattered light from an object 318 in the touch sensing region through a second angle; a detector 324; and an imaging system 322 to image the deflected scattered light from the second beam deflector onto the detector, where the first and second beam deflectors are controlled in tandem to scan the touch sensing region. The deflectors may be faces of a rotatable polygonal mirror, or phase locked MEMS deflectors. The detector may be a photodiode array, and the location of scattered light imaged onto the array may be dependent on a distance to a sensed object 318. A deflector may deflect ...

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Номер записи: 4
03-04-2013 дата публикации

Display driver circuits for OLED displays

Номер: GB0002495117A
Автор: SMITH EUAN CHRISTOPHER [GB], SMITH EUAN CHRISTOPHER, EUAN CHRISTOPHER SMITH
Принадлежит:

A pixel driver architecture for an active matrix OLED display, comprising: a voltage-programmed master pixel programming circuit 102 configured to produce a programmable current Iout in response to programming voltage Vpgm, wherein said master pixel programming circuit comprises a voltage programming line106 to receive a programming voltage defining a pixel luminance, a programmable current generator coupled to said voltage programming line to generate a programmed current responsive to said programming voltage, and a current output line 108 to output said programmed current; and a plurality of current-programmed slave pixel driver circuits 104, each coupled to said master pixel programming circuit, and each configured to drive a respective OLED 120 responsive to a said programming voltage received by said master pixel programming circuit, wherein a said slave pixel driver circuit comprises a current programming line 114 coupled to said current output line of said master pixel programming ...

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Номер записи: 5