Touch screen liquid crystal display

Capacitance touch near field-far field switching

A touch sensor panel configured to switch between a mutual capacitance near field sensing architecture and a self-capacitance far field sensing architecture. The touch sensor panel includes circuitry that can switch the configuration of touch electrodes to act as either drive lines in a mutual capacitance configuration or as sense electrodes in a self capacitance configuration. The touch sensor panel also includes circuitry that can switch the configuration of touch electrodes to act as either sense lines in a mutual capacitance configuration or a sense electrode in a self-capacitance configuration.

Capacitance touch near field-far field switching

A touch sensor panel configured to switch between a mutual capacitance near field sensing architecture and a self-capacitance far field sensing architecture. The touch sensor panel includes circuitry that can switch the configuration of touch electrodes to act as either drive lines in a mutual capacitance configuration or as sense electrodes in a self capacitance configuration. The touch sensor panel also includes circuitry that can switch the configuration of touch electrodes to act as either sense lines in a mutual capacitance configuration or a sense electrode in a self-capacitance configuration.

Touch screen liquid crystal display

The invention relates to a touch screen liquid crystal display. Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane-switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed.

Segmented Vcom

Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane-switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed.

Dynamic Current Control of a Transmitter for Magnetic Proximity Sensing

Magnetic sensing technology can be used to detect changes, or disturbances (e.g., changes in magnetic field strength), in magnetic fields and can be used to measure the precise location/positioning of an electronic device in proximity to a magnetic source. In order to avoid interference by earth's static magnetic field, a modulated magnetic field can be used for magnetic based proximity sensing. Received modulated magnetic field signals can be demodulated to determine a received magnetic field strength. A drive current of a magnetic transmitter coil can be varied to maintain the detected magnetic field strength at a target value or within a desirable range. The drive current can also be varied to remain below a burnout current level that can cause damage to the transmitter coil. 1. A method comprising:transmitting a modulated magnetic field using a transmitting coil having a first drive current;receiving, from a receiving device, a magnetic field strength received at the receiving device based on the transmitted modulated magnetic field;comparing the received magnetic field strength with a target magnetic strength value;determining whether the received magnetic field strength is less than the target magnetic strength value; determining whether the first drive current is less than a maximum drive current value;', 'in accordance with a determination that the first drive current is less than the maximum drive current value, supplying the transmitting coil with a second drive current, greater than the first drive current; and', 'in accordance with a determination that the first drive current is equal to the maximum drive current value, continuing supplying the transmitting coil with the first drive current;, 'in accordance with a determination that the received magnetic field strength is less than the target magnetic strength valuedetermining whether the received magnetic field strength is greater than the target magnetic strength value;in accordance with a ...

MOTION SENSITIVE MECHANICAL KEYBOARD

A motion sensitive mechanical keyboard configured to enable a standard look and feel mechanical keyboard to sense hand/finger motion over the surface of the keys. Command and cursor input (e.g., pointing and gestures) can be received from the user on the motion sensitive mechanical keyboard without requiring the user to move the user's hand off the keyboard. Hand/finger motion can be detected by optical sensors via an in-keyboard-plane slot camera system. The motion sensitive mechanical keyboard can operate in two or more modes—e.g., a typing mode and a mouse mode—and operating the keyboard in mouse mode or switching between the modes can be facilitated by holding (depressing and holding) or tapping (depressing and releasing) arbitrary combinations of keys.

Simultaneous sensing arrangement

Touch screen liquid crystal display.

Touch screen liquid crystal display

Touch screen liquid crystal display

Back-side interface for hand-held devices

Touch screen liquid crystal display

Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane- switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed.

Touch screen liquid crystal display

Touch screen liquid crystal display

Touch screen liquid crystal display

Back-side interface for hand-held devices

Touch screen liquid crystal display

C:\NRPortblDCC\MAG41706_1 DOC - 2113/I I A touch screen display comprising: a liquid crystal display having a plurality of pixel electrodes and a counter 5 electrode; the counter electrode segmented into a plurality of touch drive electrodes, the counter electrode operating as a Vcom electrode during a display function and operating as the plurality of touch drive electrodes during a touch function; a plurality of touch sense electrodes spaced apart from the plurality of touch 10 drive electrodes to form capacitive coupling nodes therebetween; and at least one capacitance touch sensing circuit operatively coupled to the plurality of touch sense electrodes during the touch function for measuring a change in capacitance at the capacitive coupling nodes. 105a 100 104 - - 101 - 102 105b Sensing Circuit 103 -- 106 --- Processor Memory Computer Circuit ...

Capacitance touch near field-far field switching

A touch sensor panel configured to switch between a mutual capacitance near field sensing architecture and a self-capacitance far field sensing architecture. The touch sensor panel includes circuitry that can switch the configuration of touch electrodes to act as either drive lines in a mutual capacitance configuration or as sense electrodes in a self- capacitance configuration. The touch sensor panel also includes circuitry that can switch the configuration of touch electrodes to act as either sense lines in a mutual capacitance configuration or a sense electrode in a self-capacitance configuration.

Capacitance touch near field-far field switching

A touch sensor panel configured to switch between a mutual capacitance near field sensing architecture and a self-capacitance far field sensing architecture. The touch sensor panel includes circuitry that can switch the configuration of touch electrodes to act as either drive lines in a mutual capacitance configuration or as sense electrodes in a self- capacitance configuration. The touch sensor panel also includes circuitry that can switch the configuration of touch electrodes to act as either sense lines in a mutual capacitance configuration or a sense electrode in a self-capacitance configuration.

Simultaneous sensing arrangement

Multi-touch touch-sensing devices and methods are described herein. The touch sensing devices can include multiple sense points, each located at a crossing of a drive line and a sense line. In some embodiments, multiple drive lines may be simultaneously or nearly simultaneously stimulated with drive signals having unique characteristics, such as phase or frequency. A sense signal can occur on each sense line that can be related to the drive signals by an amount of touch present at sense points corresponding to the stimulated drive lines and the sense line. By using processing techniques based on the unique drive signals, an amount of touch corresponding to each sense point can be extracted from the sense signal. The touch sensing methods and devices can be incorporated into interfaces for a variety of electronic devices such as a desktop, tablet, notebook, and handheld computers, personal digital assistants, media players, and mobile telephones.

TOUCH SENSING WITH MOBILE SENSORS

Apparatus and methods are disclosed for simultaneously tracking multiple finger and palm contacts as hands approach, touch, and slide across a proximity-sensing, multi-touch surface. Identification and classification of intuitive hand configurations and motions enables unprecedented integration of typing, resting, pointing, scrolling, 3D manipulation, and handwriting into a versatile, ergonomic computer input device. 1. An apparatus comprising:an array of touch sensors; a compressible structure on which one or more of the touch sensors is disposed, wherein a force applied by the object to the surface of one of the keys compresses the compressible structure of the key to move the surface of the key by an amount based on the applied force, and', 'a sensing element mounted below the surface of the key, the sensing element being disposed such that the force applied by the object moves the surface of the key toward the sensing element;, 'a plurality of keys, wherein the array of touch sensors has an area that spans the plurality of keys such that the array of touch sensors senses touches of an object to surfaces of the keys, each key including'}a keypress detector that senses a keypress of one of the keys in response to the force applied by the object on the surface of the key exceeding a threshold force; andan input processor that provides an indication of the sensed touch with respect to the area of the touch sensor array and that provides an indication of the sensed keypress.2. The apparatus of claim 1 , wherein the threshold force includes a predetermined threshold force value claim 1 , and sensing the keypress includes determining an applied force value of the applied force and comparing the applied force value to the threshold force value.3. The apparatus of claim 2 , further comprising:a contact parameter processor that determines a proximity of the object, mathematically fits an ellipse to the proximity, and determines ellipse axis lengths of the fitted ellipse, ...

Touch screen liquid crystal display

Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane-switching (IPS) LCDs. in some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed.

Touch screen liquid crystal display

An integrated liquid-crystal display (LCD) touch screen 100 is provided in which touch-sensing elements can be completely implemented within the LCD stack. The LCD stack comprises a first and a second polarizer; a first and a second substrate disposed between the polarizers, display control circuitry formed on the first substrate, a liquid crystal layer disposed between the substrates and at least one touch sensing element. At least one of the touch-sensing elements is disposed between the polarizers but not between the substrates. In some embodiments all of the touch sensing elements can be disposed outside the substrates. The touch sensing elements may be formed on the second substrate. The touch sensor may comprise a first layer with a plurality of drive electrodes 105a and a second layer with a plurality of sense electrodes 105b, preferably formed of indium-tin oxide (ITO) and separated by a dielectric layer. Alternative the touch-sensing elements may comprise active circuitry, such ...

LASER SCANNING APPARATUS

TITLE LASER SCANNING APPARATUS A laser scanning apparatus is disclosed. The apparatus includes a curved field for receiving a radiograph to be scanned, a source of interrogating radiation, a means for producing a focussed scanning beam of interrogating radiation onto the radiograph, a gantry for mounting the source and beam producing means; a means for relatively displacing the gantry with respect to the field so as to cause the beam to scan the field in raster fashion; and a photodetector positioned with respect to the field to receive radiation transmitted through the radiograph. The photodetector itself comprises a plurality of semiconductor elements connected electrically in parallel and physically arranged in edge-to-edge abutting relationship. The elements are arranged in a curvilinear pattern with each being substantially equally spaced from the radiograph.

MULTITOUCH DATA FUSION

A method for performing multi-touch (MT) data fusion is disclosed in which multiple touch inputs occurring at about the same time are received to generating first touch data. Secondary sense data can then be combined with the first touch data to perform operations on an electronic device. The first touch data and the secondary sense data can be time-aligned and interpreted in a time-coherent manner. The first touch data can be refined in accordance with the secondary sense data, or alternatively, the secondary sense data can be interpreted in accordance with the first touch data. Additionally, the first touch data and the secondary sense data can be combined to create a new command.

Touch screen liquid crystal display

Touch screen liquid crystal display

TOUCH SCREEN LIQUID CRYSTAL DISPLAY Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed.

Wide dynamic range capacitive sensing

A touch sensor panel configured to detect objects touching the panel as well as objects that are at a varying proximity to the touch sensor panel. The touch sensor panel includes circuitry that can configure the panel in a mutual capacitance (near field) architecture or a self-capacitance (far field and super far field) architecture. The touch sensor panel can operate in different object sensing modes having different resolutions such as a near field mode, a far field mode, and a super-far field mode.

Touch screen liquid crystal display

TOUCH SCREEN LIQUID CRYSTAL DISPLAY Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed.

Touch screen liquid crystal display

C:\NRPortblDCC\MAG41706_1 DOC - 2113/I I A touch screen display comprising: a liquid crystal display having a plurality of pixel electrodes and a counter 5 electrode; the counter electrode segmented into a plurality of touch drive electrodes, the counter electrode operating as a Vcom electrode during a display function and operating as the plurality of touch drive electrodes during a touch function; a plurality of touch sense electrodes spaced apart from the plurality of touch 10 drive electrodes to form capacitive coupling nodes therebetween; and at least one capacitance touch sensing circuit operatively coupled to the plurality of touch sense electrodes during the touch function for measuring a change in capacitance at the capacitive coupling nodes. 105a 100 104 - - 101 - 102 105b Sensing Circuit 103 -- 106 --- Processor Memory Computer Circuit ...

Touch screen liquid crystal display

Touch screen liquid crystal display

Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane- switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed.

Method and device for multi-touch sensing arrangement

Multi-touch touch-sensing devices and methods are described herein. The touch sensing devices can include multiple sense points, each located at a crossing of a drive line and a sense line. In some embodiments, multiple drive lines may be simultaneously or nearly simultaneously stimulated with drive signals having unique characteristics, such as phase or frequency. A sense signal can occur on each sense line that can be related to the drive signals by an amount of touch present at sense points corresponding to the stimulated drive lines and the sense line. By using processing techniques based on the unique drive signals, an amount of touch corresponding to each sense point can be extracted from the sense signal. The touch sensing methods and devices can be incorporated into interfaces for a variety of electronic devices such as a desktop, tablet, notebook, and handheld computers, personal digital assistants, media players, and mobile telephones.

Touch sensing with mobile sensors

Apparatus and methods are disclosed for simultaneously tracking multiple finger and palm contacts as hands approach, touch, and slide across a proximity-sensing, multi-touch surface. Identification and classification of intuitive hand configurations and motions enables unprecedented integration of typing, resting, pointing, scrolling, 3D manipulation, and handwriting into a versatile, ergonomic computer input device.

INTEGRATED DISPLAY AND TOUCH SCREEN

Liquid crystal display (LCD) touch screens integrate touch sensing elements with display circuitry and may include in-plane-switching (IPS) LCDs. A method of operating the integrated touch sensing elements with the display circuitry includes dividing touch-sensing circuitry of the touch screen into a plurality of drive segments, each drive segment overlapping one or more display rows; updating the display at a predetermined refresh rate; stimulating the plurality of drive segments at a predetermined scan rate; and changing the sequence of stimulating the plurality of drive segments as required to prevent simultaneously stimulating a drive segment that overlaps a display row currently being updated. 1. A method of operating an integrated liquid crystal display touch screen whereby updating of the display can be done concurrently with touch scanning , the method comprising:dividing touch-sensing circuitry of the touch screen into a plurality of drive segments,each drive segment overlapping one or more display rows;updating the display at a predetermined refresh rate;stimulating the plurality of drive segments at a predetermined scan rate; andchanging the sequence of stimulating the plurality of drive segments as required to prevent simultaneously stimulating a drive segment that overlaps a display row currently being updated.2. The method of wherein the scan rate is the same as the refresh rate.3. The method of wherein the scan rate is an integer multiple of the refresh rate.4. The method of wherein the scan rate is twice the refresh rate.5. The method of further comprising changing the sequence of stimulating the plurality of drive segments as required to prevent concurrently stimulating a drive segment that is adjacent a display row currently being updated.6. A method of manufacturing an integrated liquid crystal display touch screen claim 1 , the method comprising: processing a first substrate claim 1 , wherein processing the first substrate comprises:applying a ...

Enabling touch events on a touch sensitive mechanical keyboard

Touch sensitive mechanical keyboards and processes for detecting touch events and key depressions on the touch sensitive mechanical keyboard are provided. The touch sensitive mechanical keyboard can include a set of individually depressible mechanical keys having a touch sensitive area located on their surface. A touch sensor can be included to detect touch events on the surface of the mechanical keys. A keypad can also be included to detect a depression of the mechanical keys. The touch sensitive mechanical keyboard can further include a processor for distinguishing detected touch events from detected key depressions. The processor can generate either a key depression command or a touch event command.

Integrated LCD touch screen

A touch screen includes a LCD display with integral touch sensing. The screen includes a first substrate with display control circuitry formed thereon. The display circuitry has a pair of electrodes (8400, 8402) for each sub-pixel of the display (as found in in-plane-switching LCDs). All touch sensing elements are disposed between the first and an adjacent second substrate. The display electrodes may be used to effect touch sensing. A method of operating a touch screen is also claimed in which display pixels form touch sensing rows and columns. The rows are grounded during a first time period whilst the display is updated and stimulated during a second time period. The columns are used to sense a touch during the second period. Also disclosed are other arrangements for integrating touch sensing into a LCD stack.

LASER SCANNING APPARATUS FOR RADIOGRAPHS

Simultaneous sensing arrangement

Touch screen liquid crystal display

Wide dynamic range capacitive sensing

A touch sensor panel configured to detect objects touching the panel as well as objects that are at a varying proximity to the touch sensor panel. The touch sensor panel includes circuitry that can configure the panel in a mutual capacitance (near field) architecture or a self-capacitance (far field and super far field) architecture. The touch sensor panel can also include circuitry that works to minimize an effect that a parasitic capacitance can have on the ability of the touch sensor panel to reliably detect touch and proximity events.

Touch screen liquid crystal display

Touch screen liquid crystal display

Back-side interface for hand-held devices

Touch screen liquid crystal display

PHOTODETECTOR ASSEMBLY FOR A LASER SCANNING APPARATUS

Simultaneous sensing arrangement

SIMULTANEOUS SENSING ARRANGEMENT Abstract Multi-touch touch-sensing devices and methods are described herein. The touch sensing devices can include multiple sense points, each located at a crossing of a drive line and a sense line. In some embodiments, multiple drive lines may be simultaneously or nearly simultaneously stimulated with drive signals having unique characteristics, such as phase or frequency. A sense signal can occur on each sense line that can be related to the drive signals by an amount of touch present at sense points corresponding to the stimulated drive lines and the sense line. By using processing techniques based on the unique drive signals, an amount of touch corresponding to each sense point can be extracted from the sense signal. The touch sensing methods and devices can be incorporated into interfaces for a variety of electronic devices such as a desktop, tablet, notebook, and handheld computers, personal digital assistants, media players, and mobile telephones.

Touch screen liquid crystal display

TOUCH SCREEN LIQUID CRYSTAL DISPLAY Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed.

PHOTODETECTOR ASSEMBLY FOR A LASER SCANNING APPARATUS

Simultaneous sensing arrangement

Multi-touch touch-sensing devices and methods are described herein. The touch sensing devices can include multiple sense points, each located at a crossing of a drive line and a sense line. In some embodiments, multiple drive lines may be simultaneously or nearly simultaneously stimulated with drive signals having unique characteristics, such as phase or frequency. A sense signal can occur on each sense line that can be related to the drive signals by an amount of touch present at sense points corresponding to the stimulated drive lines and the sense line. By using processing techniques based on the unique drive signals, an amount of touch corresponding to each sense point can be extracted from the sense signal. The touch sensing methods and devices can be incorporated into interfaces for a variety of electronic devices such as a desktop, tablet, notebook, and handheld computers, personal digital assistants, media players, and mobile telephones.

Touch screen liquid crystal display

Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane- switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed.

Touch screen liquid crystal display

Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane-switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed. WO 2007/146783 PCT/US2007/070729 105a 100 104-,- -- - 101 --------- 102 105b ( Sensing Circuit V 103 S Processor ___ __ ...

LASER SCANNING APPARATUS FOR RADIOGRAPHS

A METHOD OF INCREASING THE SPATIAL RESOLUTION OF TOUCH SENSITIVE DEVICES

Disclosed herein is a capacitive touch sensitive device. One aspect of the touch sensitive device described herein is a reduction in the number of sensor circuits needed for circular or linear capacitive touch sensitive devices while maintaining the same resolution and absolute position determination for a single object. A related aspect of the touch sensitive device described herein a coding pattern that allows each sensor circuit of a capacitive touch sensitive device to share multiple electrodes at specially chosen locations in a sensor array such that the ability to determine the absolute position of a single object over the array is not compromised. COPYRIGHT KIPO & WIPO 2010 ...

Touch screen liquid crystal display

SEGMENTED VCOM

Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane-switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed.

Back-side interface for hand-held devices

Touch screen liquid crystal display

Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane-switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed. WO 2007/146783 PCT/US2007/070729 105a 100 104-,- -- - 101 --------- 102 105b ( Sensing Circuit V 103 S Processor ___ __ ...

TOUCH SCREEN LIQUID CRYSTAL DISPLAY

Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane-switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed. © KIPO & WIPO 2009 ...

WIDE DYNAMIC RANGE CAPACITIVE SENSING

A touch sensor panel configured to detect objects touching the panel as well as objects that are at a varying proximity to the touch sensor panel. The touch sensor panel includes circuitry that can configure the panel in a mutual capacitance (near field) architecture or a self-capacitance (far field and super far field) architecture. The touch sensor panel can also include circuitry that works to minimize an effect that a parasitic capacitance can have on the ability of the touch sensor panel to reliably detect touch and proximity events. 1. A method for determining an object sensing mode of a touch sensor panel , comprising: operating the touch sensor panel in a first object sensing mode having a first resolution in which each of a first plurality of sensing electrodes are individually measured and thereafter averaged to determine a presence of an object,', 'if a first touch or proximity event is detected in the first object sensing mode, switching the touch sensor panel to operate in a second object sensing mode having a second resolution in which each of a second plurality of sensing electrodes are individually measured to determine the presence and a location of the object, and', 'if no second touch or proximity event is detected in the second object sensing mode, switching the touch sensor panel back to operate in the first object sensing mode., 'at an electronic device with one or more processors and memory,'}2. The method of claim 1 , further comprising:if a second touch or proximity event is detected in the second object sensing mode, switching the touch sensor panel to operate in a third object sensing mode having a third resolution.3. The method of claim 2 , further comprising:if no third touch or proximity event is detected in the third object sensing mode, switching the touch sensor panel to operate in the first object sensing mode.4. The method of claim 1 , wherein the first and second resolutions are different levels of x-y location resolution.5. The ...

Touch screen liquid crystal display

TOUCH SCREEN LIQUID CRYSTAL DISPLAY Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed.

Touch screen liquid crystal display

Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane-switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed.

LASERABTASTUNGSGERAET.

Touch screen liquid crystal display

Touch sensor panel design

A touch sensor panel including a plurality of drive lines crossing a plurality of sense lines, forming an array, is disclosed. The plurality of drive lines and the plurality of sense lines are formed by interconnecting a plurality of substantially transparent conductive sections having a first resistivity. A substantially transparent conductive material, with a second resistivity that is lower than the first resistivity, is deposited over at least part of at least one of the plurality of substantially transparent conductive sections of at least one of the plurality of drive lines and the plurality of sense lines. A second layer of the substantially transparent conductive material, with the second resistivity, can be deposited thereafter. At least one dummy section is disposed in an area of the touch sensor panel around the conductive sections of at least one of the plurality of drive lines and the plurality of sense lines.

Touch screen liquid crystal display

Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane-switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed.

Touch sensitive mechanical keyboard

A touch sensitive mechanical keyboard configured to enable a standard look and feel mechanical keyboard to sense fine hand/finger motion over the surface of the keys. Command and cursor input (e.g., pointing and gestures) can be received from the user on the touch sensitive mechanical keyboard without requiring the user to move the user's hand off the keyboard. Fine hand/finger motion detection can be enabled by embedding clusters of capacitive sensors near the surface of the keyboard's keys. The touch sensitive mechanical keyboard can operate in two or more modes—e.g., a typing mode and a mouse mode—and operating the keyboard in mouse mode or switching between the modes can be facilitated by holding (depressing and holding) or tapping (depressing and releasing) arbitrary combinations of keys, or by detecting the number of fingers touching the touch sensitive mechanical keyboard.

Intergrated multi-touch surface having varying sensor granularity

This relates to an event sensing device that includes an event sensing panel and is able to dynamically change the granularity of the panel according to present needs. Thus, the granularity of the panel can differ at different times of operation. Furthermore, the granularity of specific areas of the panel can also be dynamically changed, so that different areas feature different granularities at a given time. This also relates to panels that feature different inherent granularities in different portions thereof. These panels can be designed, for example, by placing more stimulus and/or data lines in different portions of the panel, thus ensuring different densities of pixels in the different portions. Optionally, these embodiments can also include the dynamic granularity changing features noted above.

Flüssigkristallanzeige mit Berührungsbildschirm

Hier werden Flüssigkristallanzeige- (LCD) Berührungsbildschirme offenbart, bei denen die Berührungssensorelemente mit den Anzeigeschaltungen integriert sind. Die Integration kann eine Vielfalt von Formen annehmen. Die Berührungssensorelemente können vollständig innerhalb des LCD-Stapelaufbaus aber nicht zwischen der Farbfilterplatte und der Feldplatte implementiert sein. Alternativ können einige Berührungssensorelemente zwischen den Farbfilter- und Feldplatten angeordnet sein, wobei andere Berührungssensorelemente nicht zwischen den Platten liegen. In einer anderen Alternative können alle Berührungssensorelemente zwischen den Farbfilter- und Feldplatten liegen. Die letzte Alternative kann sowohl konventionelle als auch in einer Ebene schaltende (IPS) LCDs umfassen. In einigen Formen können Anzeigestrukturen auch eine Berührungsmessfunktion aufweisen. Techniken zur Herstellung und zum Betrieb solcher Anzeigen sowie verschiedene solche Anzeigen aufweisende Vorrichtungen sind ebenfalls offenbart ...

MAGNETSENSORBASIERTE NÄHERUNGSERFASSUNG

Eine Magneterfassungstechnologie kann verwendet werden, um Änderungen oder Störungen (z. B. Änderungen der Magnetfeldstärke) in Magnetfeldern zu detektieren, und kann verwendet werden, um die genaue Position/Positionierung einer elektronischen Vorrichtung in der Nähe einer Magnetquelle zu messen. Um Störungen durch das statische Erdmagnetfeld zu vermeiden, kann ein moduliertes Magnetfeld zur magnetbasierten Näherungserfassung verwendet werden. Empfangene modulierte Magnetfeldsignale können demoduliert werden, um die Nähe des Sensors zur Quelle des modulierten Magnetfelds zu bestimmen. Vorrichtungen, wie Handschuhe oder Vorrichtungen mit Fingerspitzenknoten, die auf einem Empfangen modulierter Magnetfelder basieren, können verwendet werden, um eine Benutzerhandposition zu detektieren.

TOUCH SCREEN LIQUID CRYSTAL DISPLAY

Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane-switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed. 1. An integrated device including a liquid crystal display and a touch screen , comprising:a first polarizer;a second polarizer;a first substrate having display control circuitry formed thereon, the first substrate being disposed between the first polarizer and the second polarizer;a second substrate disposed between the first polarizer and the second polarizer;a liquid crystal layer disposed between the first and second substrates;a plurality of touch drive electrodes and a plurality of touch sense electrodes disposed between the first and second substrates an operative as a touch sensor during a touch mode of operation;a counter electrode segmented to form the plurality of touch sense electrodes, the counter electrode operating as a Vcom electrode during a display mode of operations and operating as the plurality of touch sense electrodes during the touch mode of operation; anddisplay select lines configured to act as the plurality of touch drive electrodes, the display select lines forming part of the display control circuitry formed on the first substrate.2. The device of claim 1 , wherein the ...

Touch screen liquid crystal display

Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane-switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed.

TOUCH SCREEN LIQUID CRYSTAL DISPLAY

Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane-switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed. © KIPO & WIPO 2009 ...

IMU-based glove

This disclosure relates to a VR glove capable of measuring the movement of individual finger and thumb bones. The VR glove can include a plurality of inertial measurement units (IMUs) to track the movement of one or more finger and/or hand sections. The IMUs can include one or more motion sensors, such as a gyroscope and an accelerometer, for measuring the orientation, position, and velocity of objects (e.g., finger bones) that the IMU can be attached. An IMU can be located proximate to a finger (or thumb) bone and can measure the inertial motion of the corresponding bone. In some examples, the VR glove may include magnetometers to determine the direction of the geo-magnetic field. The VR glove can also include one or more other electronic components, such as a plurality of electrodes for sensing the heading, enabling capacitive touch, and/or contact sensing between finger tips.

Flüssigkristallanzeige mit Berührungsbildschirm

Berührungsbildschirm mit einer Flüssigkristallanzeige mit integrierter Berührungsmessung, wobei der Berührungsbildschirm umfasst: ein erstes Substrat mit einer darauf angeordneten Anzeigesteuerungsschaltung, wobei das erste Substrat zwischen einem ersten Polarisator und einem zweiten Polarisator angeordnet ist; ein zweites Substrat, das neben dem ersten Substrat zwischen dem ersten Polarisator und dem zweiten Polarisator angeordnet ist; wenigstens ein Berührungssensorelement, das zwischen dem ersten und dem zweiten Substrat angeordnet ist, wobei alle Berührungssensorelemente zwischen dem ersten und dem zweiten Substrat angeordnet sind. Touch screen with a liquid crystal display with integrated touch measurement, wherein the touch screen comprises: a first substrate having a display control circuit disposed thereon, the first substrate being disposed between a first polarizer and a second polarizer; a second substrate disposed adjacent to the first substrate between the first polarizer and the second polarizer; at least one touch sensor element disposed between the first and second substrates, wherein all the touch sensor elements are disposed between the first and second substrates.

TOUCH SCREEN LIQUID CRYSTAL DISPLAY

Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane-switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed. © KIPO & WIPO 2009 ...

Flüssigkristallanzeige mit Berührungsbildschirm

Hier werden Flüssigkristallanzeige- (LCD) Berührungsbildschirme offenbart, bei denen die Berührungssensorelemente mit den Anzeigeschaltungen integriert sind. Die Integration kann eine Vielfalt von Formen annehmen. Die Berührungssensorelemente können vollständig innerhalb des LCD-Stapelaufbaus aber nicht zwischen der Farbfilterplatte und der Feldplatte implementiert sein. Alternativ können einige Berührungssensorelemente zwischen den Farbfilter- und Feldplatten angeordnet sein, wobei andere Berührungssensorelemente nicht zwischen den Platten liegen. In einer anderen Alternative können alle Berührungssensorelemente zwischen den Farbfilter- und Feldplatten liegen. Die letzte Alternative kann sowohl konventionelle als auch in einer Ebene schaltende (IPS) LCDs umfassen. In einigen Formen können Anzeigestrukturen auch eine Berührungsmessfunktion aufweisen. Techniken zur Herstellung und zum Betrieb solcher Anzeigen sowie verschiedene solche Anzeigen aufweisende Vorrichtungen sind ebenfalls offenbart ...

Touch screen liquid crystal display

Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane-switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed.

MAGNETIC SENSOR BASED PROXIMITY SENSING

Magnetic sensing technology can be used to detect changes, or disturbances (e.g., changes in magnetic field strength), in magnetic fields and can be used to measure the precise location/positioning of an electronic device in proximity to a magnetic source. In order to avoid interference by earth's static magnetic field, a modulated magnetic field can be used for magnetic based proximity sensing. Received modulated magnetic field signals can be demodulated to determine proximity of the sensor to the source of the modulated magnetic field. Devices such as gloves or devices with fingertip nodes based on receiving modulated magnetic fields can be used to detect user hand position. 1. A control device included in a system and configured to be worn over a hand of a user , the control device comprising:a magnetic field generator for generating one or more modulated electromagnetic fields; receive one or more modulated electromagnetic fields, and', 'demodulate the received one or more modulated electromagnetic fields to produce a plurality of demodulated signals; and, 'a plurality of magnetic sensors, each magnetic sensor proximate to a hand or a finger and configured toa processor configured to determine a position of one or more of: the hand and one or more fingers of the user using the demodulated signals.2. The control device of claim 1 , the processor further configured to determine joint angles of one or more of: the hand and the one or more fingers of the user using the determined position.3. The control device of claim 1 , the processor further configured to communicate to a host device using wireless signals claim 1 , the wireless signals including information indicative of the determined joint angles.4. The control device of claim 3 , wherein the information is such that the host device is capable of rendering an image of the hand or the one or more fingers using the determined joint angles.5. The control device of claim 1 , wherein the one or more modulated ...

Simultaneous sensing arrangement

Multi-touch touch-sensing devices and methods are described herein. The touch sensing devices can include multiple sense points, each located at a crossing of a drive line and a sense line. In some embodiments, multiple drive lines may be simultaneously or nearly simultaneously stimulated with drive signals having unique characteristics, such as phase or frequency. A sense signal can occur on each sense line that can be related to the drive signals by an amount of touch present at sense points corresponding to the stimulated drive lines and the sense line. By using processing techniques based on the unique drive signals, an amount of touch corresponding to each sense point can be extracted from the sense signal. The touch sensing methods and devices can be incorporated into interfaces for a variety of electronic devices such as a desktop, tablet, notebook, and handheld computers, personal digital assistants, media players, and mobile telephones.

Flüssigkristallanzeige mit Berührungsbildschirm

Integrierter Flüssigkristallanzeigeberührungsbildschirm umfassend: einen ersten Polarisator; einen zweiten Polarisator; ein erstes Substrat, auf dem eine Anzeigesteuerungsschaltung ausgebildet ist, wobei das erste Substrat zwischen dem ersten Polarisator und dem zweiten Polarisator angeordnet ist; ein zweites Substrat, das zwischen dem ersten Polarisator und dem zweiten Polarisator und dem ersten Substrat benachbart angeordnet ist; und wenigstens ein Berührungssensorelement, das zwischen dem ersten und dem zweiten Substrat angeordnet ist.

Wide dynamic range capacitive sensing

A touch sensor panel configured to detect objects touching the panel as well as objects that are at a varying proximity to the touch sensor panel. The touch sensor panel includes circuitry that can configure the panel in a mutual capacitance (near field) architecture or a self-capacitance (far field and super far field) architecture. The touch sensor panel can also include circuitry that works to minimize an effect that a parasitic capacitance can have on the ability of the touch sensor panel to reliably detect touch and proximity events.

TOUCH SENSITIVE MECHANICAL KEYBOARD

A touch sensitive mechanical keyboard configured to enable a standard look and feel mechanical keyboard to sense fine hand/finger motion over the surface of the keys. Command and cursor input (e.g., pointing and gestures) can be received from the user on the touch sensitive mechanical keyboard without requiring the user to move the user's hand off the keyboard. Fine hand/finger motion detection can be enabled by embedding clusters of capacitive sensors near the surface of the keyboard's keys. The touch sensitive mechanical keyboard can operate in two or more modes—e.g., a typing mode and a mouse mode—and operating the keyboard in mouse mode or switching between the modes can be facilitated by holding (depressing and holding) or tapping (depressing and releasing) arbitrary combinations of keys, or by detecting the number of fingers touching the touch sensitive mechanical keyboard. 1. A touch input system , comprising: each key of the plurality of keys having a touch surface including a plurality of sensor nodes, each sensor node configurable for detecting an object touching or in proximity to the sensor node and generating one of a plurality of first signals, and', 'each key of the plurality of keys configurable for detecting a depression of that key and generating one of a plurality of second signals; and, 'a touch sensitive keyboard including a plurality of keys,'}a processor communicatively coupled to the touch sensitive keyboard, the processor configured for, upon a detection of one or more key depressions, causing the touch sensitive keyboard to switch between operating in a typing mode and operating in a mouse mode.2. The touch input system of claim 1 , the processor further configured for detecting a holding down of one or more keys and causing the touch sensitive keyboard to switch from the typing mode to the mouse mode.3. The touch input system of claim 1 , the processor further configured for detecting a holding down of an arbitrary combination of keys to ...

Fusion keyboard

Touch sensitive mechanical keyboards for detecting touch events and key depressions on the keyboard are provided. The keyboard can include a set of individually depressible mechanical keys having a touch sensitive area located on their surface. A touch sensor can be included to detect touch events on the surface of the keys. A keypad can also be included to detect a depression of the mechanical keys. One or more of the depressible mechanical keys can be multi-purpose keys capable of being depressed to multiple levels. The touch sensitive mechanical keyboard can receive key depression input, touch event input, or combinations thereof at the same time. The touch sensitive mechanical keyboard can further include a processor for distinguishing detected touch events from detected key depressions. The processor can generate a key depression command or a touch event command in response to the detected touch events and key depressions.

Multi-touch gesture dictionary

A multi-touch gesture dictionary is disclosed herein. The gesture dictionary can include a plurality of entries, each corresponding to a particular chord. The dictionary entries can include a variety of motions associated with the chord and the meanings of gestures formed from the chord and the motions. The gesture dictionary may take the form of a dedicated computer application that may be used to look up the meaning of gestures. The gesture dictionary may also take the form of a computer application that may be easily accessed from other applications. The gesture dictionary may also be used to assign user-selected meanings to gestures. Also disclosed herein are computer systems incorporating multi-touch gesture dictionaries. The computer systems can include, desktop computers, tablet computers, notebook computers, handheld computers, personal digital assistants, media players, mobile telephones, and the like.

Simultaneous sensing arrangement

Multi-touch touch-sensing devices and methods are described herein. The touch sensing devices can include multiple sense points, each located at a crossing of a drive line and a sense line. In some embodiments, multiple drive lines may be simultaneously or nearly simultaneously stimulated with drive signals having unique characteristics, such as phase or frequency. A sense signal can occur on each sense line that can be related to the drive signals by an amount of touch present at sense points corresponding to the stimulated drive lines and the sense line. By using processing techniques based on the unique drive signals, an amount of touch corresponding to each sense point can be extracted from the sense signal. The touch sensing methods and devices can be incorporated into interfaces for a variety of electronic devices such as a desktop, tablet, notebook, and handheld computers, personal digital assistants, media players, and mobile telephones.

Back-side interface for hand-held devices

The present invention discloses an electronic device that uses separate surfaces for input and output. One of the surfaces (e.g., the bottom) includes a force-sensitive touch-surface through which a user provides input (e.g., cursor manipulation and control element selection). On a second surface (e.g., the top), a display element is used to present information appropriate to the device's function(e.g., video information), one or more control elements and a cursor. The cursor is controlled through manipulation of the back-side touch-surface. The cursor identifies where on the back-side touch-surface the user's finger has made contact. When the cursor is positioned over the desired control element, the user selects or activates the function associated with the control element by applying pressure to the force-sensitive touch-surface with their finger. Accordingly, the electronic device may be operated with a single hand, wherein cursor movement and control element selection may be accomplished ...

Contact tracking and identification module for touch sensing

Apparatus and methods are disclosed for simultaneously tracking multiple finger and palm contacts as hands approach, touch, and slide across a proximity-sensing, multi-touch surface. Identification and classification of intuitive hand configurations and motions enables unprecedented integration of typing, resting, pointing, scrolling, 3D manipulation, and handwriting into a versatile, ergonomic computer input device.

TOUCH SCREEN LIQUID CRYSTAL DISPLAY

Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane-switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed. 1. A touch screen comprising:a plurality of drive lines;a plurality of drive electrodes, each drive electrode connected to and individually routed using one of the plurality of drive lines;a plurality of sense lines;a plurality of sense electrodes, each sense electrode connected to one of the plurality of sense lines;a plurality of touch pixels, each touch pixel comprising the one of the plurality of drive electrodes and the one of the plurality of sense electrodes;the drive electrode and the sense electrode of each touch pixel forming electrode pairs positioned adjacent one another and on the same plane and configured to be individually addressable for operating in the touch sensing mode of operation.2. The touch screen of claim 1 , wherein the plurality of drive electrodes and the plurality of sense electrodes of the plurality of touch pixels are positioned on a color filter substrate.3. The touch screen of claim 1 , further comprising a display.4. The touch screen of claim 3 , wherein the display comprises a liquid crystal display.5. The touch screen of claim 4 , wherein the display comprises a ...

Simultaneous sensing arrangement

Multi-touch touch-sensing devices and methods are described herein. The touch sensing devices can include multiple sense points, each located at a crossing of a drive line and a sense line. In some embodiments, multiple drive lines may be simultaneously or nearly simultaneously stimulated with drive signals having unique characteristics, such as phase or frequency. A sense signal can occur on each sense line that can be related to the drive signals by an amount of touch present at sense points corresponding to the stimulated drive lines and the sense line. By using processing techniques based on the unique drive signals, an amount of touch corresponding to each sense point can be extracted from the sense signal. The touch sensing methods and devices can be incorporated into interfaces for a variety of electronic devices such as a desktop, tablet, notebook, and handheld computers, personal digital assistants, media players, and mobile telephones.

A METHOD OF INCREASING THE SPATIAL RESOLUTION OF TOUCH SENSITIVE DEVICES

Disclosed herein is a capacitive touch sensitive device. One aspect of the touch sensitive device described herein is a reduction in the number of sensor circuits needed for circular or linear capacitive touch sensitive devices while maintaining the same resolution and absolute position determination for a single object. A related aspect of the touch sensitive device described herein a coding pattern that allows each sensor circuit of a capacitive touch sensitive device to share multiple electrodes at specially chosen locations in a sensor array such that the ability to determine the absolute position of a single object over the array is not compromised. © KIPO & WIPO 2007 ...

METHOD AND DEVICE FOR MULTI-TOUCH SENSING ARRANGEMENT

Contact tracking and identification module for touch sensing

Apparatus and methods are disclosed for simultaneously tracking multiple finger and palm contacts as hands approach, touch, and slide across a proximity-sensing, multi-touch surface. Identification and classification of intuitive hand configurations and motions enables unprecedented integration of typing, resting, pointing, scrolling, 3D manipulation, and handwriting into a versatile, ergonomic computer input device.

STYLUS DETECTION AND DEMODULATION

A touch input device configured to detect stylus signals generated by an external stylus is provided. The touch input device includes a plurality of stylus signal detectors that can receive the stylus signal and estimate the start and end time of the stylus signal in order to facilitate windowed demodulation of signal. The touch input device also includes circuitry to determine which of the plurality of detectors is most likely to have received the stylus signal and based on that determination can demodulate the signal and extract data embedded within the stylus signal.

Touch-sensing device, method and electronic apparatus equipped with the touch-sensing device

A touch-sensing device, method and an electronic apparatus equipped with the touch-sensing device are disclosed. The touch sensing devices can Includes multiple sense points, each located at a crossing of a drive line and a sense line. In some embodiments, multiple drive lines may be simultaneously or nearly simultaneously stimulated with drive signals having unique characteristics, such as phase or frequency. A sense signal can occur on each sense line that can be related to the drive signals by an amount of touch present at sense points corresponding to the stimulated drive lines and the sense line. By using processing techniques based on the unique drive signals, an amount of touch corresponding to each sense point can be extracted from the sense signal. The touch sensing methods and devices can be incorporated into interfaces for a variety of electronic devices such as a desktop, tablet, notebook, and handheld computers, personal digital assistants, media players, and mobile telephones ...

TOUCH SCREEN LIQUID CRYSTAL DISPLAY

Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane-switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed. © KIPO & WIPO 2009 ...

TOUCH SCREEN LIQUID CRYSTAL DISPLAY

Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane-switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed. 1. A touch screen comprising a display with integral touch sensing , the touch screen comprises:a first plurality of pixels, each having first and second electrodes, a common terminal of the first plurality of pixels electrically connected together along a first direction;a second plurality of pixels each having first and second electrodes, a common terminal of the second plurality of pixels electrically connected together along a second direction;a plurality of data line for transmitting display data; anda plurality of switches, operative in a display mode of operation, for connecting the plurality of data lines to the first electrodes of the first plurality of pixels and the first electrodes of the second plurality of pixels;a first group of the first plurality of pixels;a first group of the second plurality of pixels disposed adjacent the first group of the first plurality of pixels;a second group of first plurality of pixels adjacent the first group of the second plurality of pixels; anda second group of the second plurality of pixels adjacent the second group of the first plurality of pixels; ...

Image processing for camera based motion tracking

Image processing techniques that can improve the user interface experience associated with key-based input devices. In one embodiment, a motion sensitive mechanical keyboard can utilize orthogonally-oriented cameras to sense hand/finger motion over the surface of the keys. This arrangement can enable a standard look and feel mechanical keyboard to receive command and cursor input (e.g., pointing and gestures) from the user without requiring the user to move the user's hand off the keyboard. The image processing techniques can be utilized to minimize or remove undesirable cursor movement that can occur based on certain detected hand/finger motion from such cameras, including looming and/or vertical motions for example.

Switched capacitor projection scan multi-touch sensor array

A touch sensor panel can be constructed on a single surface of a substrate as a plurality of distributed RC lines arranged in rows and columns. Each distributed RC line can include alternating connected transistors and metal pads. During operation, the transistors on either side of the metal pads in the rows are alternately gated on and off using non-overlapping gate signals, and pulse travel times for each row in both directions are measured. Similar measurements are taken for the columns. The frequency at which the transistors are gated can be changed to adjust pulse travel times. Equalized travel times are computed as the sum of the pulse travel times in both directions, and indicate which rows and columns have a finger touching it. The un-equalized pulse travel time data can then be used to determine the relative positions of the fingers within the rows and columns.

ENABLING TOUCH EVENTS ON A TOUCH SENSITIVE MECHANICAL KEYBOARD

Touch sensitive mechanical keyboards and processes for detecting touch events and key depressions on the touch sensitive mechanical keyboard are provided. The touch sensitive mechanical keyboard can include a set of individually depressible mechanical keys having a touch sensitive area located on their surface. A touch sensor can be included to detect touch events on the surface of the mechanical keys. A keypad can also be included to detect a depression of the mechanical keys. The touch sensitive mechanical keyboard can further include a processor for distinguishing detected touch events from detected key depressions. The processor can generate either a key depression command or a touch event command. 1. A method for generating a keyboard command signal , the method comprising:monitoring a plurality of depressible keys for a touch event on a surface of one or more of the plurality of depressible keys;monitoring the plurality of depressible keys for a depression of a key of the plurality of depressible keys; andgenerating a command signal based on the monitoring of the plurality of depressible keys for the touch event on the surface of one or more of the plurality of depressible keys and the monitoring of the plurality of depressible keys for the depression of the key of the plurality of depressible keys.2. The method of further comprising:receiving a touch event signal in response to a detection of the touch event on the surface of one or more of the plurality of depressible keys; andreceiving a key depression signal in response to a detection of the depression of the key of the plurality of depressible keys.3. The method of claim 2 , wherein the command signal comprises at least one of a touch event command signal or a key depression command signal claim 2 , and wherein generating the command signal comprises:generating the touch event command signal in response to receiving only the touch event signal; andgenerating the key depression command signal in response ...

FUSION KEYBOARD

Touch sensitive mechanical keyboards for detecting touch events and key depressions on the keyboard are provided. The keyboard can include a set of individually depressible mechanical keys having a touch sensitive area located on their surface. A touch sensor can be included to detect touch events on the surface of the keys. A keypad can also be included to detect a depression of the mechanical keys. One or more of the depressible mechanical keys can be multi-purpose keys capable of being depressed to multiple levels. The touch sensitive mechanical keyboard can receive key depression input, touch event input, or combinations thereof at the same time. The touch sensitive mechanical keyboard can further include a processor for distinguishing detected touch events from detected key depressions. The processor can generate a key depression command or a touch event command in response to the detected touch events and key depressions. 1. A keyboard comprising:a plurality of depressible keys, wherein at least one key of the plurality of depressible keys is a dual-purpose key configured to be depressed a first distance to a first level and a second distance to a second level;a plurality of switch sensors configured to detect a depression of a key of the plurality of depressible keys, wherein at least one switch sensor of the plurality of switch sensors is configured to detect the at least one dual-purpose key being depressed the first distance to the first level and the at least one dual-purpose key being depressed the second distance to the second level; andan array of capacitive sensors configured to detect a touch event on a surface of one or more of the plurality of depressible keys.2. The keyboard of further comprising a processor configured to:receive a touch event signal indicating that the touch event has been detected by the array of capacitor sensors on the surface of the one or more of the plurality of depressible keys; andreceive a key depression signal ...

IDENTIFYING CONTACTS ON A TOUCH SURFACE

Apparatus and methods are disclosed for simultaneously tracking multiple finger and palm contacts as hands approach, touch, and slide across a proximity-sensing, multi-touch surface. Identification and classification of intuitive hand configurations and motions enables unprecedented integration of typing, resting, pointing, scrolling, 3D manipulation, and handwriting into a versatile, ergonomic computer input device. 1. A method of input of a computing system including a touch sensing surface , the method comprising:obtaining touch sensing information of a scan of the touch sensing surface;determining, based on the touch sensing information of the scan, contact information of a set of one or more contacts, each contact corresponding to a touch object on or near the surface and the contact information including one of a major axis and a minor axis of a first contact of the set;determining, based on the one of the major axis and the minor axis of the first contact, a first orientation of the first contact; andgenerating input of the computing system based on the first orientation.2. The method of claim 1 , further comprising:obtaining touch sensing information of another scan of the touch sensing surface;determining, based on the touch sensing information of the other scan, a second orientation of the first contact; anddetermining a rotation of the first contact based on the first orientation and the second orientation, wherein generating the input based on the first orientation includes generating the input based on the rotation.3. The method of claim 1 , further comprising:identifying the first contact, wherein generating the input is further based on the identity of the first contact.4. The method of claim 3 , wherein identifying the first contact includes determining an anatomical identity of the first contact claim 3 , and generating the input based on the identity includes generating the input based on the anatomical identity of the first contact.5. The method ...

WIDE DYNAMIC RANGE CAPACITIVE SENSING

A touch sensor panel configured to detect objects touching the panel as well as objects that are at a varying proximity to the touch sensor panel. The touch sensor panel includes circuitry that can configure the panel in a mutual capacitance (near field) architecture or a self-capacitance (far field and super far field) architecture. The touch sensor panel can also include circuitry that works to minimize an effect that a parasitic capacitance can have on the ability of the touch sensor panel to reliably detect touch and proximity events. 1: A method of sensing proximity events , comprising:configuring a touch sensor panel to a self-capacitance architecture;reducing an effect of a parasitic capacitance on one or more touch signals received from the touch sensor panel; anddetermining if a proximity event has occurred based on the one or more reduced parasitic capacitance effect touch signals.2. The method of claim 1 , wherein reducing the effect of the parasitic capacitance includes offsetting the effect of the parasitic capacitance on a phase of the one or more touch signals.3: The method of claim 1 , wherein reducing the effect of parasitic capacitance includes attenuating an amount of parasitic capacitance in the touch sensor panel.4: The method of claim 3 , wherein attenuating the amount of parasitic capacitance includes placing a shield in proximity to one or more touch sensor panel components and configuring the shield to carry a signal.5: The method of claim 1 , wherein reducing the effect of parasitic capacitance includes both offsetting the effect that the parasitic capacitance has on a phase of the one or more touch signals and attenuating an amount of parasitic capacitance in the touch sensor panel.6: The method of claim 1 , wherein configuring the touch sensor panel to the self-capacitance architecture includes switching a mutual capacitance touch detection hardware configuration into a self-capacitance touch detection hardware configuration.7: The method ...

CAPACITANCE TOUCH NEAR-FIELD-FAR FIELD SWITCHING

A touch sensor panel configured to switch between a mutual capacitance near field sensing architecture and a self-capacitance far field sensing architecture. The touch sensor panel includes circuitry that can switch the configuration of touch electrodes to act as either drive lines in a mutual capacitance configuration or as sense electrodes in a self-capacitance configuration. The touch sensor panel also includes circuitry that can switch the configuration of touch electrodes to act as either sense lines in a mutual capacitance configuration or a sense electrode in a self-capacitance configuration. 1. A method for switching a touch sensor panel between a self-capacitance configuration and a mutual capacitance configuration , the method comprising:configuring a first set of multiple lines as sense electrodes in a self-capacitance configuration and as drive lines in a mutual capacitance configuration; andconfiguring a second set of multiple lines as sense electrodes in either a self-capacitance configuration or a mutual capacitance configuration.2. The method of claim 1 , wherein configuring the first set of multiple lines as drive lines comprises coupling one or more drivers to the first set of multiple lines.3. The method of claim 2 , further comprising configuring the one or more drivers to generate either a stimulation signal or a reference voltage.4. The method of claim 1 , wherein configuring the first set of multiple lines as sense electrodes comprises coupling a virtual ground charge amplifier to the first set of multiple lines.5. The method of claim 4 , further comprising selectively configuring a feedback resistance and capacitance of the virtual ground charge amplifier for super far field sensing or far field sensing.6. The method of claim 4 , further comprising reducing a parasitic capacitance of the touch sensor panel by:applying a sinusoidal signal to a positive input of the virtual ground charge amplifier; anddriving one or more shields of the touch ...

MITIGATION OF PARASITIC CAPACITANCE

A touch sensor panel configured to mitigate the effect of parasitic capacitance on the ability of a capacitive touch sensor panel to reliably detect touch and proximity events. The touch sensor panel includes circuitry that can electrically drive a set of conductive shields that partially encapsulate various conductive components of the touch sensor panel. The touch sensor panel can also include circuitry that work to calibrate the touch sensor panel against variations in signal phase due to a parasitic capacitance. 1: A method of reducing an effect of parasitic capacitance on a touch input device , the method comprising:generating a plurality of periodic signals having a same frequency as a touch sense circuitry;initializing a gain of the plurality of periodic signals;combining the plurality of periodic signals with a touch sense circuitry output signal; andadjusting the gain of the plurality of periodic signals until the combination of the plurality of periodic signals and the touch sense circuitry output signal is approximately zero.2: The method of claim 1 , wherein generating the plurality of periodic signals includes using a plurality of multiplying digital to analog converters.3: The method of claim 2 , wherein the multiplying digital to analog converters are configured to generate the plurality of periodic signals with a frequency that is substantially identical to the touch sense circuitry output signal.4: The method of claim 1 , wherein combining the plurality of periodic signals with the touch sense circuitry output signal includes summing the signals.5: The method of claim 4 , wherein summing the signals includes using voltage summation to sum the signals.6: The method of claim 4 , wherein summing the signals includes using current summation to sum the signals.7: The method of claim 1 , wherein the touch sense circuitry output is generated without a touch or proximity event occurring on the touch input device.8: The method of claim 1 , further comprising ...

Phase shift reduction in touch signals

Phase shift reduction in touch signals is disclosed. Touch signals with phase shifts can be demodulated with I- and Q-demodulation waveforms to generate the I and Q components of the signals. The I and Q components can then be combined so as to provide magnitude information not affected by the phase of the touch signals. The touch signals can be reconstructed with the combined I and Q components, thereby providing reconstructed touch signals with little or no phase shift.

TOUCH SENSOR CONTACT INFORMATION

Apparatus and methods are disclosed for simultaneously tracking multiple finger and palm contacts as hands approach, touch, and slide across a proximity-sensing, multi-touch surface. Identification and classification of intuitive hand configurations and motions enables unprecedented integration of typing, resting, pointing, scrolling, 3D manipulation, and handwriting into a versatile, ergonomic computer input device. 1. A method of selecting input of a computing system including a touch sensing surface , the method comprising:detecting a set of one or more contacts touched down on or near the surface;determining a number of the one or more contacts;determining whether the one or more contacts are in motion;determining whether the one or more contacts are decelerating; andselecting an input based on the number of contacts, whether the contacts are in motion, and whether the contacts are decelerating.2. The method of claim 1 , the method further comprising:detecting a liftoff of a first subset of one or more contacts of the set, wherein a second subset of one or more contacts of the set remains touched down; anddetermining a motion of the first subset prior to the liftoff;wherein selecting the input includes selecting, while the first subset remains lifted off from the surface after the liftoff, one of a plurality of a post-liftoff states, wherein the selection is determined by first information including the motion of the first subset prior to the liftoff.3. The method of claim 2 , wherein the input is selected prior to the liftoff claim 2 , the method further comprising:generating the input based on the motion of the first subset prior to the liftoff.4. The method of claim 3 , wherein generating the input is based on the set of contacts.5. The method of claim 3 , further comprising:determining whether the input is a currently-selected input at the time of the liftoff, wherein the first information includes the determination that the input is currently-selected at ...

TOUCH SCREEN LIQUID CRYSTAL DISPLAY

Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane-switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed. 1. A touch-sensitive surface , comprising:a first substrate; anda conductive black mask layer disposed below the first substrate;wherein the conductive black mask layer is patterned into a plurality of separate touch sensing electrodes and configured to perform capacitive touch sensing.2. The touch-sensitive surface of claim 1 , further comprising one or more charge amplifiers electrically coupled to at least some of the plurality of separate touch sensing electrodes.3. The touch-sensitive surface of claim 1 , wherein the plurality of separate touch sensing electrodes are configured as self-capacitance electrodes.4. The touch-sensitive surface of claim 1 , wherein the plurality of separate touch sensing electrodes are configured as touch drive electrodes.5. The touch-sensitive surface of claim 4 , further comprising a conductive layer disposed above the first substrate and patterned into a plurality of separate touch sense electrodes.6. The touch-sensitive surface of claim 1 , wherein the plurality of separate touch sensing electrodes are configured as touch sense electrodes.7. The touch-sensitive ...

MULTITOUCH DATA FUSION

A method for performing multi-touch (MT) data fusion is disclosed in which multiple touch inputs occurring at about the same time are received to generating first touch data. Secondary sense data can then be combined with the first touch data to perform operations on an electronic device. The first touch data and the secondary sense data can be time-aligned and interpreted in a time-coherent manner. The first touch data can be refined in accordance with the secondary sense data, or alternatively, the secondary sense data can be interpreted in accordance with the first touch data. Additionally, the first touch data and the secondary sense data can be combined to create a new command. 1. A data processing system , comprising:a touch sensing device configured for receiving multiple touch inputs occurring at about the same time and generating multi-touch data;an audio sensing device configured for receiving sound and generating audio data; and receiving the multi-touch data and performing gesture recognition to recognize a gesture,', 'receiving the audio data and performing voice recognition to recognize a voice command, and', 'combining both the gesture and the voice command to perform one or more combined gesture and voice command operations on an electronic device., 'a processor communicatively coupled to the touch sensing device and the audio sensing device, the processor configured for'}2. The data processing system of claim 1 , further comprising a display for presenting a user interface claim 1 , the processor further configured for:associating the gesture with an object being displayed; andmodifying a characteristic of the displayed object in accordance with the voice command.3. The data processing system of claim 1 , wherein the one or more combined gesture and voice command operations include performing a static command based on the voice command on an object being manipulated by the gesture.4. The data processing system of claim 3 , wherein the static command ...

Compact, Multi-User, Multi-Level, Multi-Target Magnetic Tracking System

Disclosed is a compact, multi-user magnetic tracking system. In an embodiment, a compactness is achieved by using a single coil and inertial sensors at the transmitter and magnetometers and inertial sensors at the receiver for sensing the magnetic field generated by the single coil and for determining a position and attitude of the receiver relative to the transmitter. The transmitter and receiver each include a wireless transceiver for exchanging clock synchronization data and sending transmitter attitude data to the receiver. In another embodiment, frequency or time division multiplexing is used to differentiate between multiple users of the multi-user magnetic tracking system.

TOUCH SCREEN LIQUID CRYSTAL DISPLAY

Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane-switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed. 1. An electronic device incorporating an in-plane-switching (IPS) liquid crystal display touch screen , the touch screen comprising:a first substrate having pairs of electrodes for display pixels of the liquid crystal display;the pairs of electrodes disposed in an in-plane-switching arrangement;a second substrate, the second substrate having a color filter plate;a liquid crystal layer disposed between the first and second substrates; anda plurality of sense lines disposed between the first substrate and the pairs of electrodes;in a display mode of operation, the pairs of electrodes operative as pixel electrodes and common electrodes, the pixel electrodes connected to receive display data and the common electrodes connected to receive a Vcom modulation voltage; andin a touch sensing mode of operation, the common electrodes connected to receive a stimulation signal and the plurality of sense lines connected to capacitive sensing circuitry.2. The electronic device of claim 1 , wherein the electronic device is selected from the group consisting of a desktop computer claim 1 , a tablet computer claim 1 , ...

Compact 3-Axis Coil Design for Magnetic Tracking

Disclosed is a compact 3-axis coil design for a magnetic tracking system. In an embodiment, compactness is achieved by using a 3-axis coil in the transmitter that includes a scaffold design with a side surface having a curved groove for guiding one or more windings of a z-axis coil, such that the physical geometry is not increased. 1. A three-axis coil comprising:a scaffold having a top surface, a bottom surface and a side surface;a first groove in the top surface and extending to the side surface;an first bar coil disposed in the first groove and configured to emit a first magnetic field component in a first direction when excited by a current;a second groove in the bottom surface and extending to the side surface;an second bar coil disposed in the second groove and configured to emit a second magnetic field component in a second direction that is perpendicular to the first direction when excited by the current;a curved groove in the side surface; andone or more windings of a coil disposed in the curved groove and configured to emit a third magnetic field component in a third direction in the space that is perpendicular to the first direction and the second direction when excited by the current, the curved groove shaped to guide the windings along the side surface and underneath or over openings of the first groove and the second groove at the side surface.2. The three-axis coil of claim 2 , wherein the scaffold is disc-shaped.3. A transmitter of a magnetic tracking system claim 2 , the transmitter comprising: a scaffold having a top surface, a bottom surface and a side surface;', 'a first groove in the top surface and extending to the side surface;', 'an first bar coil disposed in the first groove and configured to emit a first magnetic field component in a first direction when excited by a current;', 'a second groove in the bottom surface and extending to the side surface;', 'an second bar coil disposed in the second groove and configured to emit a second ...

SIMULTANEOUS SENSING ARRANGEMENT

Multi-touch touch-sensing devices and methods are described herein. The touch sensing devices can include multiple sense points, each located at a crossing of a drive line and a sense line. In some embodiments, multiple drive lines may be simultaneously or nearly simultaneously stimulated with drive signals having unique characteristics, such as phase or frequency. A sense signal can occur on each sense line that can be related to the drive signals by an amount of touch present at sense points corresponding to the stimulated drive lines and the sense line. By using processing techniques based on the unique drive signals, an amount of touch corresponding to each sense point can be extracted from the sense signal. The touch sensing methods and devices can be incorporated into interfaces for a variety of electronic devices such as a desktop, tablet, notebook, and handheld computers, personal digital assistants, media players, and mobile telephones. 1. A method of driving a touch sensitive surface , the touch sensitive surface comprising a plurality of sensing points , each sensing point being associated with at least one of a plurality of drive lines and at least one of a plurality of sense lines , the method comprising:simultaneously stimulating two or more drive lines of the plurality of drive lines during a plurality of time periods such that a net DC component of the two or more drive lines being stimulated during any one of the plurality of time periods is substantially 0V.2. The method of claim 1 , wherein the method further includes simultaneously stimulating two or more drive lines of the plurality of drivelines during the plurality of time periods such that the net DC component of any one of the drive lines of the two or more drive lines being stimulated after all of the plurality of time periods have elapsed is substantially 0V.3. The method of claim 1 , the method further comprising:sensing a sense signal on at least one sense line, wherein the sense signal ...

TOUCH SENSOR CONTACT INFORMATION

Apparatus and methods are disclosed for simultaneously tracking multiple finger and palm contacts as hands approach, touch, and slide across a proximity-sensing, multi-touch surface. Identification and classification of intuitive hand configurations and motions enables unprecedented integration of typing, resting, pointing, scrolling, 3D manipulation, and handwriting into a versatile, ergonomic computer input device. 1. A non-transitory computer readable storage medium having computer-executable instructions stored therein , which when executed by an apparatus including a capacitive touch sensing surface processes information in a computing system by causing the apparatus to perform a method comprising:detecting a plurality of contacts corresponding to touch objects on or near the surface;in response to detecting the plurality of contacts, associating each contact with a different bit position in a bitfield;determining a motion of a first contact of the plurality of contacts from a first position on the surface to a second position on the surface;maintaining the association of each contact with the same bit position previously associated with the contact during the motion of the first contact from the first position on the surface to the second position on the surface, in maintaining the association each contact is associated with only a single bit position in the bitfield; andapplying a bitmask to the bitfield to determine information of a set of one or more contacts of the plurality of contacts.2. The non-transitory computer readable storage medium as recited in claim 20 , wherein the method further comprises displaying a graphical object on a display of the computing system in response to the assignment of the input event.3. The non-transitory computer readable storage medium as recited in claim 2 , wherein the method further comprises adjusting the displayed graphical object based on one of a current position of the plurality of contacts on the surface claim 2 , ...

SIMULTANEOUS SENSING ARRANGEMENT

Multi-touch touch-sensing devices and methods are described herein. The touch sensing devices can include multiple sense points, each located at a crossing of a drive line and a sense line. In some embodiments, multiple drive lines may be simultaneously or nearly simultaneously stimulated with drive signals having unique characteristics, such as phase or frequency. A sense signal can occur on each sense line that can be related to the drive signals by an amount of touch present at sense points corresponding to the stimulated drive lines and the sense line. By using processing techniques based on the unique drive signals, an amount of touch corresponding to each sense point can be extracted from the sense signal. The touch sensing methods and devices can be incorporated into interfaces for a variety of electronic devices such as a desktop, tablet, notebook, and handheld computers, personal digital assistants, media players, and mobile telephones. 1. A touch sensing device comprising: apply a first drive signal to a first drive line of a plurality of drive lines during a first time period; and', 'apply a second drive signal to a second drive line of the plurality of drive lines during a second time period, the second time period at least partially overlapping the first time period during an overlapping time period, wherein the first and second drive signals have the same frequency and are in phase during a first portion of the overlapping time period and out of phase during a second portion of the overlapping time period; and, 'drive circuitry configured to detect a sense signal from at least one sense line, the sense signal being related to the first and second drive signals by touch or proximity of one or more objects to one or more sensing points associated with the at least one sense line, a sensing point being associated with at least one of the plurality of drive lines and at least one of a plurality of sense lines; and', 'derive touch information for the one or ...

IMU-BASED GLOVE

This disclosure relates to a VR glove capable of measuring the movement of individual finger and thumb bones. The VR glove can include a plurality of inertial measurement units (IMUs) to track the movement of one or more finger and/or hand sections. The IMUs can include one or more motion sensors, such as a gyroscope and an accelerometer, for measuring the orientation, position, and velocity of objects (e.g., finger bones) that the IMU can be attached. An IMU can be located proximate to a finger (or thumb) bone and can measure the inertial motion of the corresponding bone. In some examples, the VR glove may include magnetometers to determine the direction of the geo-magnetic field. The VR glove can also include one or more other electronic components, such as a plurality of electrodes for sensing the heading, enabling capacitive touch, and/or contact sensing between finger tips. 1. A glove included in a virtual realty system and configured to be worn over a hand of a user , the glove comprising:one or more electronic components including:a plurality of inertial motion units (IMUs), each IMU located proximate to a hand or finger bone and configured to generate a signal indicative of a motion of the hand or finger bone,wherein the plurality of IMUs is configured to measure an acceleration and a rotational rate of one or more of the hand and fingers of the user; and determine one or more movements of a joint of the hand of the user using the signals, and', 'determine one or more movements of a finger of the hand of the user using the signals from at least two of the plurality of IMUs associated with the finger., 'logic configured to2. The glove of claim 1 , wherein the glove excludes a magnetometer.3. The glove of claim 1 , further comprising: a first bus including the signals from the at least two of the plurality of IMUs, and', 'a second bus including signals from other one or more of the plurality of IMUs associated with a separate finger,, 'one or more buses ...

Intergrated multi-touch surface having varying sensor granularity

This relates to an event sensing device that includes an event sensing panel and is able to dynamically change the granularity of the panel according to present needs. Thus, the granularity of the panel can differ at different times of operation. Furthermore, the granularity of specific areas of the panel can also be dynamically changed, so that different areas feature different granularities at a given time. This also relates to panels that feature different inherent granularities in different portions thereof. These panels can be designed, for example, by placing more stimulus and/or data lines in different portions of the panel, thus ensuring different densities of pixels in the different portions. Optionally, these embodiments can also include the dynamic granularity changing features noted above.

TOUCH SCREEN LIQUID CRYSTAL DISPLAY

Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane-switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed. 1. A touch screen display having a plurality of display pixels , the touch screen display comprising:a display having a plurality of pixel electrodes and a counter electrode;the counter electrode segmented into a plurality of touch drive electrodes, the counter electrode operating as a common voltage electrode during a display function and operating as the plurality of touch drive electrodes during a touch function;a plurality of touch sense electrodes spaced apart from the plurality of touch drive electrodes and disposed transverse to the plurality of touch drive electrodes to form capacitance sensing nodes at each crossing of the plurality of touch drive electrodes and the plurality of touch sense electrodes resulting from mutual capacitive coupling between the crossing plurality of touch drive electrodes and plurality of touch sense electrodes;at least one capacitance touch sensing circuit operatively coupled to the plurality of touch sense electrodes during the touch function for measuring a change in capacitance at the capacitance sensing nodeswherein each of a plurality of storage capacitors ...

STYLUS DETECTION AND DEMODULATION

A touch input device configured to detect stylus signals generated by an external stylus is provided. The touch input device includes a plurality of stylus signal detectors that can receive the stylus signal and estimate the start and end time of the stylus signal in order to facilitate windowed demodulation of signal. The touch input device also includes circuitry to determine which of the plurality of detectors is most likely to have received the stylus signal and based on that determination can demodulate the signal and extract data embedded within the stylus signal. 1. A method of detecting stylus signals generated by an external stylus on a touch input device , the method comprising:configuring the touch input device to receive a stylus signal;receiving the stylus signal at a plurality of stylus signal detectors;determining which of the plurality of stylus signal detectors has a greatest likelihood of having received the stylus signal; anddemodulating the received stylus signal based on one or more metrics generated by the determined stylus signal detector.2. The method of claim 1 , wherein configuring the touch input device to receive a stylus signal includes configuring a plurality of drive lines and a plurality of sense lines configured for receiving touch inputs to additionally receive a stylus signal.3. The method of claim 2 , wherein configuring the plurality of sense lines to receive a stylus signal includes coupling each sense line of the plurality of sense lines to a stylus signal detector.4. The method of claim 1 , wherein the one or more metrics can include an estimated start time of the detected stylus signal claim 1 , an estimated end time of the stylus signal claim 1 , and an estimated signal strength of the detected stylus signal.5. The method of claim 4 , wherein determining which of the plurality of stylus signal detectors has the greatest likelihood of having received the stylus signal includes comparing the estimated signal strengths of the ...

Touch screen liquid crystal display

Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane-switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed.

TOUCH SENSOR PANEL DESIGN

A touch sensor panel including a plurality of drive lines crossing a plurality of sense lines, forming an array, is disclosed. The plurality of drive lines and the plurality of sense lines are formed by interconnecting a plurality of substantially transparent conductive sections having a first resistivity. A substantially transparent conductive material, with a second resistivity that is lower than the first resistivity, is deposited over at least part of at least one of the plurality of substantially transparent conductive sections of at least one of the plurality of drive lines and the plurality of sense lines. A second layer of the substantially transparent conductive material, with the second resistivity, can be deposited thereafter. At least one dummy section is disposed in an area of the touch sensor panel around the conductive sections of at least one of the plurality of drive lines and the plurality of sense lines. 1. A touch sensor panel , comprising:a plurality of first conductive sections having a first resistivity;a plurality of second conductive sections having a second resistivity, different from the first resistivity, wherein at least one of the second conductive sections contacts at least one of the plurality of first conductive sections; anda plurality of drive lines and sense lines, each drive and sense line comprising at least two interconnected first conductive sections.2. The touch sensor panel of claim 1 , wherein at least one the plurality of first conductive sections have a diamond shape.3. The touch sensor panel of claim 1 , wherein the plurality of second conductive sections have a shape different than the plurality of first conductive sections.4. The touch sensor panel of claim 1 , wherein an area of the plurality of second conductive sections is less than an area of the plurality of first conductive sections.5. The touch sensor panel of claim 1 , wherein the first resistivity is lower than the second resistivity.6. The touch sensor panel ...

SIMULTANEOUS SENSING ARRANGEMENT

Multi-touch touch-sensing devices and methods are described herein. The touch sensing devices can include multiple sense points, each located at a crossing of a drive line and a sense line. In some embodiments, multiple drive lines may be simultaneously or nearly simultaneously stimulated with drive signals having unique characteristics, such as phase or frequency. A sense signal can occur on each sense line that can be related to the drive signals by an amount of touch present at sense points corresponding to the stimulated drive lines and the sense line. By using processing techniques based on the unique drive signals, an amount of touch corresponding to each sense point can be extracted from the sense signal. The touch sensing methods and devices can be incorporated into interfaces for a variety of electronic devices such as a desktop, tablet, notebook, and handheld computers, personal digital assistants, media players, and mobile telephones. 1. A method of stimulating a touch sensitive surface , the touch sensitive surface comprising a plurality of sensing points , a sensing point being associated with at least one of a plurality of drive lines and at least one of a plurality of sense lines , the method comprising:stimulating a first drive line of the plurality of drive lines with a first drive signal during a first time period; andstimulating a second drive line of the plurality of drive lines with a second drive signal during a second time period, the second time period at least partially overlapping the first time period during an overlapping time period;wherein the first and second drive signals have the same frequency and are in phase during a first portion of the overlapping time period and out of phase during a second portion of the overlapping time period.2. The method of claim 1 , the method further comprising:sensing a sense signal on at least one sense line, wherein the sense signal is related to the first and second drive signals by touch or ...

Intergrated multi-touch surface having varying sensor granularity

This relates to an event sensing device that includes an event sensing panel and is able to dynamically change the granularity of the panel according to present needs. Thus, the granularity of the panel can differ at different times of operation. Furthermore, the granularity of specific areas of the panel can also be dynamically changed, so that different areas feature different granularities at a given time. This also relates to panels that feature different inherent granularities in different portions thereof. These panels can be designed, for example, by placing more stimulus and/or data lines in different portions of the panel, thus ensuring different densities of pixels in the different portions. Optionally, these embodiments can also include the dynamic granularity changing features noted above.

WIDE DYNAMIC RANGE CAPACITIVE SENSING

A touch sensor panel configured to detect objects touching the panel as well as objects that are at a varying proximity to the touch sensor panel. The touch sensor panel includes circuitry that can configure the panel in a mutual capacitance (near field) architecture or a self-capacitance (far field and super far field) architecture. The touch sensor panel can also include circuitry that works to minimize an effect that a parasitic capacitance can have on the ability of the touch sensor panel to reliably detect touch and proximity events. 1. A method for determining an object sensing mode of a touch sensor panel , comprising: operating the touch sensor panel in a first object sensing mode having a first resolution,', 'if a first touch or proximity event is detected in the first object sensing mode, switching the touch sensor panel to operate in a second object sensing mode having a second resolution, and', 'if no second touch or proximity event is detected in the second object sensing mode, switching the touch sensor panel back to operate in the first object sensing mode., 'at an electronic device with one or more processors and memory,'}2. The method of claim 1 , further comprising:if a second touch or proximity event is detected in the second object sensing mode, switching the touch sensor panel to operate in a third object sensing mode having a third resolution.3. The method of claim 2 , further comprising:if no third touch or proximity event is detected in the third object sensing mode, switching the touch sensor panel back to operate in the second object sensing mode.4. The method of claim 1 , wherein the first and second resolutions are different levels of x-y location resolution.5. The method of claim 1 , wherein the first and second resolutions are different levels of z proximity resolution.6. The method of claim 1 , wherein the first claim 1 , second and third object sensing modes are selected from the group consisting of a super-far field mode claim 1 , a ...

Reduce stylus tip wobble when coupled to capacitive sensor

An algorithm for reducing stylus tip wobble for a stylus translating on a surface over and between electrodes of a touch sensor panel is disclosed. In some examples, a first position estimate can be calculated using a first position calculation method and a second position estimate can be calculated using a second position calculation method. The position of the stylus can be determined based on a weighted combination of the first and second position estimates. In some examples, the first position estimate can be calculated using an even-point centroid of signal contributions from an even number of electrodes of a touch sensor panel and the second position estimate can be calculated using an odd-point centroid of signal contributions from an odd number of electrodes. In some examples, the weighting can be assigned based on a ratio of the two largest amplitude signals and based on a ratio of the second and third largest amplitude signals.

WIDE DYNAMIC RANGE CAPACITIVE SENSING

A touch sensor panel configured to detect objects touching the panel as well as objects that are at a varying proximity to the touch sensor panel. The touch sensor panel includes circuitry that can configure the panel in a mutual capacitance (near field) architecture or a self-capacitance (far field and super far field) architecture. The touch sensor panel can operate in different object sensing modes having different resolutions such as a near field mode, a far field mode, and a super-far field mode. 1. A method for determining an object sensing mode of a touch sensor panel , comprising: operating the touch sensor panel in a first object sensing mode having a first resolution in which a mutual capacitance measurement is performed by a first plurality of sense electrodes to determine a presence and a location of an object,', 'if a first touch or proximity event is not detected in the first object sensing mode, switching the touch sensor panel to operate in a second object sensing mode having a second resolution, in which a second plurality of sensing electrodes are measured in a self-capacitance mode to determine the presence and the location of the object, and', 'if a second touch or proximity event is not detected in the second object sensing mode, switching the touch sensor panel to a third object sensing mode having a third resolution, lower than the second resolution, in which a third plurality of sensing electrodes are measured in a self-capacitance mode to determine the presence of the object., 'at an electronic device with one or more processors and memory,'}2. The method of claim 1 , wherein the first claim 1 , second claim 1 , and third plurality of sensing electrodes is a common set of electrodes.3. The method of claim 1 , wherein the second and third plurality of sensing electrodes is a common set of electrodes and the first plurality of electrodes includes at least one electrode different from the second and third plurality of sensing electrodes4. The ...

INTEGRATED MULTI-TOUCH SURFACE HAVING VARYING SENSOR GRANULARITY

This relates to an event sensing device that includes an event sensing panel and is able to dynamically change the granularity of the panel according to present needs. Thus, the granularity of the panel can differ at different times of operation. Furthermore, the granularity of specific areas of the panel can also be dynamically changed, so that different areas feature different granularities at a given time. This also relates to panels that feature different inherent granularities in different portions thereof. These panels can be designed, for example, by placing more stimulus and/or data lines in different portions of the panel, thus ensuring different densities of pixels in the different portions. Optionally, these embodiments can also include the dynamic granularity changing features noted above. 1. A method for operating a touch screen included in a touch enabled device , the method comprising: a first operating mode associated with a first level of granularity, and', 'a second operating mode associated with a second level of granularity,', 'different from the first level of granularity;, 'operating one or more portions of the touch screen in at least one of a plurality of operating modes, the plurality of operating modes includingdynamically selecting a portion of the touch screen based on one or more applications running on the touch enabled device; anddynamically switching an operating mode of the selected portion based on the one or more applications running on the touch enabled device.2. The method of claim 1 , wherein dynamically selecting the portion of the touch screen further comprises:powering one or more circuitry, the powered one or more circuitry coupled to data lines included in the selected portion of the touch screen.3. The method of claim 1 , wherein dynamically selecting the portion of the touch screen further comprises:driving one or more stimulus lines coupled to the selected portion of the touch screen.4. The method of claim 1 , wherein ...

Stylus detection and demodulation

A touch input device configured to detect stylus signals generated by an external stylus is provided. The touch input device includes a plurality of stylus signal detectors that can receive the stylus signal and estimate the start and end time of the stylus signal in order to facilitate windowed demodulation of signal. The touch input device also includes circuitry to determine which of the plurality of detectors is most likely to have received the stylus signal and based on that determination can demodulate the signal and extract data embedded within the stylus signal.

Multi-touch system and method for emulating modifier keys via fingertip chords

A multi-touch system is disclosed that recognizes simultaneous touchdown of four fingers on, above, or below the home row of keys as a modifier chord and applies modifiers such as Shift, Ctrl, or Alt to subsequent touch activity until none of the chord fingertips remain touching. Touches by the thumb of the modifier chord hand that occur before any modifiable typing or clicking activity cause the modifier chord to be canceled and reinterpreted as hand resting. The Shift modifier may be released temporarily during thumb keypresses that are intermixed with typing of capitalized characters. Distributing the modifier chord touches across different zones or key rows selects multiple modifiers. In an alternative embodiment, different modifiers can be selected with different arrangements of the fingers relative to one another within the chord, irrespective of absolute hand alignment with the touch surface.

Method of increasing the spatial resolution of touch sensitive devices

Disclosed herein is a capacitive touch sensitive device. One aspect of the touch sensitive device described herein is a reduction in the number of sensor circuits needed for circular or linear capacitive touch sensitive devices while maintaining the same resolution and absolute position determination for a single object. A related aspect of the touch sensitive device described herein a coding pattern that allows each sensor circuit of a capacitive touch sensitive device to share multiple electrodes at specially chosen locations in a sensor array such that the ability to determine the absolute position of a single object over the array is not compromised.

Touch screen liquid crystal display

Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane-switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed.

Integrated display and touch screen

Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane-switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed.

Touch screen liquid crystal display

Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane-switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed.

Multi-touch gesture dictionary

A multi-touch gesture dictionary is disclosed herein. The gesture dictionary can include a plurality of entries, each corresponding to a particular chord. The dictionary entries can include a variety of motions associated with the chord and the meanings of gestures formed from the chord and the motions. The gesture dictionary may take the form of a dedicated computer application that may be used to look up the meaning of gestures. The gesture dictionary may also take the form of a computer application that may be easily accessed from other applications. The gesture dictionary may also be used to assign user-selected meanings to gestures. Also disclosed herein are computer systems incorporating multi-touch gesture dictionaries. The computer systems can include, desktop computers, tablet computers, notebook computers, handheld computers, personal digital assistants, media players, mobile telephones, and the like.

Multi-touch gesture dictionary

A multi-touch gesture dictionary is disclosed herein. The gesture dictionary can include a plurality of entries, each corresponding to a particular chord. The dictionary entries can include a variety of motions associated with the chord and the meanings of gestures formed from the chord and the motions. The gesture dictionary may take the form of a dedicated computer application that may be used to look up the meaning of gestures. The gesture dictionary may also take the form of a computer application that may be easily accessed from other applications. The gesture dictionary may also be used to assign user-selected meanings to gestures. Also disclosed herein are computer systems incorporating multi-touch gesture dictionaries. The computer systems can include, desktop computers, tablet computers, notebook computers, handheld computers, personal digital assistants, media players, mobile telephones, and the like.

Touch screen liquid crystal display

Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane-switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed.

Projection scan multi-touch sensor array

A touch sensor panel can be constructed on a single surface of a substrate. The panel can be formed as a plurality of distributed RC lines arranged in an array of rows and columns. Each distributed RC line can include alternating connected transistors and metal pads formed on a single surface of the substrate. During operation, the rows and columns are enabled at different times, and the pulse travel times for each row and column in both directions are measured. Equalized travel times are then computed as the sum of the pulse travel times in both directions, and indicate which rows and columns have a finger touching it. The un-equalized pulse travel time data can then be used to determine the relative positions of the fingers within the rows and columns and un-ambiguously determine the positions of all the finger contacts.

Simultaneous sensing arrangement

Multi-touch touch-sensing devices and methods are described herein. The touch sensing devices can include multiple sense points, each located at a crossing of a drive line and a sense line. In some embodiments, multiple drive lines may be simultaneously or nearly simultaneously stimulated with drive signals having unique characteristics, such as phase or frequency. A sense signal can occur on each sense line that can be related to the drive signals by an amount of touch present at sense points corresponding to the stimulated drive lines and the sense line. By using processing techniques based on the unique drive signals, an amount of touch corresponding to each sense point can be extracted from the sense signal. The touch sensing methods and devices can be incorporated into interfaces for a variety of electronic devices such as a desktop, tablet, notebook, and handheld computers, personal digital assistants, media players, and mobile telephones.

Touch Sensitive Mechanical Keyboard

A touch sensitive mechanical keyboard configured to enable a standard look and feel mechanical keyboard to sense fine hand/finger motion over the surface of the keys. Command and cursor input (e.g., pointing and gestures) can be received from the user on the touch sensitive mechanical keyboard without requiring the user to move the user's hand off the keyboard. Fine hand/finger motion detection can be enabled by embedding clusters of capacitive sensors near the surface of the keyboard's keys. The touch sensitive mechanical keyboard can operate in two or more modes—e.g., a typing mode and a mouse mode—and operating the keyboard in mouse mode or switching between the modes can be facilitated by holding (depressing and holding) or tapping (depressing and releasing) arbitrary combinations of keys, or by detecting the number of fingers touching the touch sensitive mechanical keyboard.

Multi-Touch Shape Drawing

Multi-touch shape drawing. The use of multi-touch gesture detection improves the user interface experience associated with generating and modifying shapes. By associating unique multi-touch gestures with the generation of corresponding shapes, the accuracy and ease of use with which shapes can be generated can be improved. By associating multi-touch gestures with the modification of shapes, the ease of use with which shapes can be modified can be improved.

Touch sensor panel design

A touch sensor panel including a plurality of drive lines crossing a plurality of sense lines, forming an array, is disclosed. The plurality of drive lines and the plurality of sense lines are formed by interconnecting a plurality of substantially transparent conductive sections having a first resistivity. A substantially transparent conductive material, with a second resistivity that is lower than the first resistivity, is deposited over at least part of at least one of the plurality of substantially transparent conductive sections of at least one of the plurality of drive lines and the plurality of sense lines. A second layer of the substantially transparent conductive material, with the second resistivity, can be deposited thereafter. At least one dummy section is disposed in an area of the touch sensor panel around the conductive sections of at least one of the plurality of drive lines and the plurality of sense lines.

Image Processing for Camera Based Motion Tracking

Image processing techniques that can improve the user interface experience associated with key-based input devices. In one embodiment, a motion sensitive mechanical keyboard can utilize orthogonally-oriented cameras to sense hand/finger motion over the surface of the keys. This arrangement can enable a standard look and feel mechanical keyboard to receive command and cursor input (e.g., pointing and gestures) from the user without requiring the user to move the user's hand off the keyboard. The image processing techniques can be utilized to minimize or remove undesirable cursor movement that can occur based on certain detected hand/finger motion from such cameras, including looming and/or vertical motions for example.

Capacitance touch near field-far field switching

A touch sensor panel configured to switch between a mutual capacitance near field sensing architecture and a self-capacitance far field sensing architecture. The touch sensor panel includes circuitry that can switch the configuration of touch electrodes to act as either drive lines in a mutual capacitance configuration or as sense electrodes in a self- capacitance configuration. The touch sensor panel also includes circuitry that can switch the configuration of touch electrodes to act as either sense lines in a mutual capacitance configuration or a sense electrode in a self-capacitance configuration.

Driver handheld computing device lock-out

Lock-out mechanisms for driver handheld computing devices. The lock-out mechanisms disable the ability of a handheld computing device to perform certain functions, such as texting, while one is driving. In one embodiment, a handheld computing device can provide a lock-out mechanism without requiring any modifications or additions to a vehicle by using a motion analyzer, a scenery analyzer and a lock-out mechanism. In other embodiments, the handheld computing device can provide a lock-out mechanism with modifications or additions to the vehicle, including the use of signals transmitted by the vehicle or by the vehicle key when engaged with the vehicle.

Integrated multi-touch surface having varying sensor granularity

This relates to an event sensing device that includes an event sensing panel and is able to dynamically change the granularity of the panel according to present needs. Thus, the granularity of the panel can differ at different times of operation. Furthermore, the granularity of specific areas of the panel can also be dynamically changed, so that different areas feature different granularities at a given time. This also relates to panels that feature different inherent granularities in different portions thereof. These panels can be designed, for example, by placing more stimulus and/or data lines in different portions of the panel, thus ensuring different densities of pixels in the different portions. Optionally, these embodiments can also include the dynamic granularity changing features noted above.

Multitouch data fusion

A method for performing multi-touch (MT) data fusion is disclosed in which multiple touch inputs occurring at about the same time are received to generating first touch data. Secondary sense data can then be combined with the first touch data to perform operations on an electronic device. The first touch data and the secondary sense data can be time-aligned and interpreted in a time-coherent manner. The first touch data can be refined in accordance with the secondary sense data, or alternatively, the secondary sense data can be interpreted in accordance with the first touch data. Additionally, the first touch data and the secondary sense data can be combined to create a new command.

Bandwidth enhancement for a touch sensor panel

A system is disclosed for enhancing the stimulation signal bandwidth for a touch sensor panel and maintaining relatively uniform touch sensitivity over the touch sensor panel surface. In one embodiment, a bandwidth enhancement circuit is coupled in parallel to a sensor circuit. The sensor circuit includes a source of stimulating voltage, a drive line, a sense line, and a charge amplifier. The drive line and the sense line are coupled with each other by a mutual capacitance Csig. The bandwidth enhancement circuit can be a RC circuit coupled in parallel to the sensor circuit. The bandwidth enhancement circuit can be represented by two serially coupled resistors, each of which is also coupled to ground on one end, and two capacitors. In particular, one of the capacitors couples the bandwidth enhancement circuit to the drive line, and the other capacitor couples the bandwidth enhancement circuit to the sense line.

Mitigation of parasitic capacitance

A touch sensor panel configured to mitigate the effect of parasitic capacitance on the ability of a capacitive touch sensor panel to reliably detect touch and proximity events. The touch sensor panel includes circuitry that can electrically drive a set of conductive shields that partially encapsulate various conductive components of the touch sensor panel. The touch sensor panel can also include circuitry that work to calibrate the touch sensor panel against variations in signal phase due to a parasitic capacitance.

Reduce stylus tip wobble when coupled to capacitive sensor

Algorithms can be used to reduce stylus tip wobble for a stylus translating on a surface over and between electrodes of a touch sensor panel. In some examples, a first position estimate can be calculated using a first position calculation method and a second position estimate can be calculated using a second position calculation method. The position of the stylus can be determined based on a weighted combination of the first and second position estimates. In some examples, the first position estimate can be calculated using an even-point centroid of signal contributions from an even number of electrodes of a touch sensor panel and the second position estimate can be calculated using an odd-point centroid of signal contributions from an odd number of electrodes. In some examples, the weighting can be assigned based on a ratio of the two largest amplitude signals and based on a ratio of the second and third largest amplitude signals.

Magnetic sensor based proximity sensing

Magnetic sensing technology can be used to detect changes, or disturbances (e.g., changes in magnetic field strength), in magnetic fields and can be used to measure the precise location/positioning of an electronic device in proximity to a magnetic source. In order to avoid interference by earth's static magnetic field, a modulated magnetic field can be used for magnetic based proximity sensing. Received modulated magnetic field signals can be demodulated to determine proximity of the sensor to the source of the modulated magnetic field. Devices such as gloves or devices with fingertip nodes based on receiving modulated magnetic fields can be used to detect user hand position.

Projection scan multi-touch sensor array

A touch sensor panel can be constructed on a single surface of a substrate. The panel can be formed as a plurality of distributed RC lines arranged in an array of rows and columns. Each distributed RC line can include alternating connected transistors and metal pads formed on a single surface of the substrate. During operation, the rows and columns are enabled at different times, and the pulse travel times for each row and column in both directions are measured. Equalized travel times are then computed as the sum of the pulse travel times in both directions, and indicate which rows and columns have a finger touching it. The un-equalized pulse travel time data can then be used to determine the relative positions of the fingers within the rows and columns and un-ambiguously determine the positions of all the finger contacts.

Touch screen liquid crystal display

Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane-switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed.

Touch screen liquid crystal display

Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The touch elements comprise individually addressable touch pixels. Each touch pixel includes a drive electrode (7102), a sense electrode (7103) and corresponding drive lines (7104) and sense lines (7105) that are individually routed and connected to a bus on the border of the display.

Touch screen liquid crystal display

Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane-switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed.

Simultaneous sensing arrangement

Simultaneous sensing arrangement

Multi-touch touch-sensing devices and methods are described herein. The touch sensing devices can include multiple sense points, each located at a crossing of a drive line and a sense line. In some embodiments, multiple drive lines may be simultaneously or nearly simultaneously stimulated with drive signals having unique characteristics, such as phase or frequency. A sense signal can occur on each sense line that can be related to the drive signals by an amount of touch present at sense points corresponding to the stimulated drive lines and the sense line. By using processing techniques based on the unique drive signals, an amount of touch corresponding to each sense point can be extracted from the sense signal. The touch sensing methods and devices can be incorporated into interfaces for a variety of electronic devices such as a desktop, tablet, notebook, and handheld computers, personal digital assistants, media players, and mobile telephones.

Simultaneous sensing arrangement

Multi-touch touch-sensing devices and methods are described herein. The touch sensing devices can include multiple sense points, each located at a crossing of a drive line and a sense line. In some embodiments, multiple drive lines may be simultaneously or nearly simultaneously stimulated with drive signals having unique characteristics, such as phase or frequency. A sense signal can occur on each sense line that can be related to the drive signals by an amount of touch present at sense points corresponding to the stimulated drive lines and the sense line. By using processing techniques based on the unique drive signals, an amount of touch corresponding to each sense point can be extracted from the sense signal. The touch sensing methods and devices can be incorporated into interfaces for a variety of electronic devices such as a desktop, tablet, notebook, and handheld computers, personal digital assistants, media players, and mobile telephones.

Simultaneous sensing arrangement

Multi-touch touch-sensing devices and methods are described herein. The touch sensing devices can include multiple sense points, each located at a crossing of a drive line and a sense line. In some embodiments, multiple drive lines may be simultaneously or nearly simultaneously stimulated with drive signals having unique characteristics, such as phase or frequency. A sense signal can occur on each sense line that can be related to the drive signals by an amount of touch present at sense points corresponding to the stimulated drive lines and the sense line. By using processing techniques based on the unique drive signals, an amount of touch corresponding to each sense point can be extracted from the sense signal. The touch sensing methods and devices can be incorporated into interfaces for a variety of electronic devices such as a desktop, tablet, notebook, and handheld computers, personal digital assistants, media players, and mobile telephones.

Multitouch data fusion

A method for performing multi-touch (MT) data fusion is disclosed in which multiple touch inputs occurring at about the same time are received to generating first touch data. Secondary sense data can then be combined with the first touch data to perform operations on an electronic device. The first touch data and the secondary sense data can be time-aligned and interpreted in a time-coherent manner. The first touch data can be refined in accordance with the secondary sense data, or alternatively, the secondary sense data can be interpreted in accordance with the first touch data. Additionally, the first touch data and the secondary sense data can be combined to create a new command.

Intergrated multi-touch surface having varying sensor granularity

This relates to an event sensing device that includes an event sensing panel and is able to dynamically change the granularity of the panel according to present needs. Thus, the granularity of the panel can differ at different times of operation. Furthermore, the granularity of specific areas of the panel can also be dynamically changed, so that different areas feature different granularities at a given time. This also relates to panels that feature different inherent granularities in different portions thereof. These panels can be designed, for example, by placing more stimulus and/or data lines in different portions of the panel, thus ensuring different densities of pixels in the different portions. Optionally, these embodiments can also include the dynamic granularity changing features noted above.

Integrated multi-touch surface having varying sensor granularity

This relates to an event sensing device that includes an event sensing panel and is able to dynamically change the granularity of the panel according to present needs. Thus, the granularity of the panel can differ at different times of operation. Furthermore, the granularity of specific areas of the panel can also be dynamically changed, so that different areas feature different granularities at a given time. This also relates to panels that feature different inherent granularities in different portions thereof. These panels can be designed, for example, by placing more stimulus and/or data lines in different portions of the panel, thus ensuring different densities of pixels in the different portions. Optionally, these embodiments can also include the dynamic granularity changing features noted above.

Multi-touch shape drawing

Multi-touch shape drawing. The use of multi-touch gesture detection improves the user interface experience associated with generating and modifying shapes. By associating unique multi-touch gestures with the generation of corresponding shapes, the accuracy and ease of use with which shapes can be generated can be improved. By associating multi-touch gestures with the modification of shapes, the ease of use with which shapes can be modified can be improved.

Touch sensitive mechanical keyboard

A touch sensitive mechanical keyboard configured to enable a standard look and feel mechanical keyboard to sense fine hand/finger motion over the surface of the keys. Command and cursor input (e.g., pointing and gestures) can be received from the user on the touch sensitive mechanical keyboard without requiring the user to move the user's hand off the keyboard. Fine hand/finger motion detection can be enabled by embedding clusters of capacitive sensors near the surface of the keyboard's keys. The touch sensitive mechanical keyboard can operate in two or more modes—e.g., a typing mode and a mouse mode—and operating the keyboard in mouse mode or switching between the modes can be facilitated by holding (depressing and holding) or tapping (depressing and releasing) arbitrary combinations of keys, or by detecting the number of fingers touching the touch sensitive mechanical keyboard.

A method of increasing the spatial resolution of touch sensitive devices

Disclosed herein is a capacitive touch sensitive device. One aspect of the touch sensitive device described herein is a reduction in the number of sensor circuits needed for circular or linear capacitive touch sensitive devices while maintaining the same resolution and absolute position determination for a single object. A related aspect of the touch sensitive device described herein a coding pattern that allows each sensor circuit of a capacitive touch sensitive device to share multiple electrodes at specially chosen locations in a sensor array such that the ability to determine the absolute position of a single object over the array is not compromised.

Laser scanning apparatus

A laser scanning apparatus is characterized by a curved film-receiving field with a conforming photodiode detector.

Multi-touch gesture dictionary

A multi-touch gesture dictionary is disclosed herein. The gesture dictionary can include a plurality of entries, each corresponding to a particular chord. The dictionary entries can include a variety of motions associated with the chord and the meanings of gestures formed from the chord and the motions. The gesture dictionary may take the form of a dedicated computer application that may be used to look up the meaning of gestures. The gesture dictionary may also take the form of a computer application that may be easily accessed from other applications. The gesture dictionary may also be used to assign user-selected meanings to gestures. Also disclosed herein are computer systems incorporating multi-touch gesture dictionaries. The computer systems can include, desktop computers, tablet computers, notebook computers, handheld computers, personal digital assistants, media players, mobile telephones, and the like.

Capacitance touch near-field—far field switching

A touch sensor panel configured to switch between a mutual capacitance near field sensing architecture and a self-capacitance far field sensing architecture. The touch sensor panel includes circuitry that can switch the configuration of touch electrodes to act as either drive lines in a mutual capacitance configuration or as sense electrodes in a self-capacitance configuration. The touch sensor panel also includes circuitry that can switch the configuration of touch electrodes to act as either sense lines in a mutual capacitance configuration or a sense electrode in a self-capacitance configuration.

Touch sensing device, module, electronic device and mobile telephone

Touch screen liquid crystal display

Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane-switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed.

Touch screen liquid crystal display

Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane- switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed.

Bus structure having constant electrical characteristics

A data transmission bus arrangement in which the transceiver arrays (22) through which a main bus (12) communicates with functional circuit modules (31) are physically disposed on the same substrate (16) that carries the bus (12).

Integrated multi-touch surface having varying sensor granularity

This relates to an event sensing device that includes an event sensing panel and is able to dynamically change the granularity of the panel according to present needs. Thus, the granularity of the panel can differ at different times of operation. Furthermore, the granularity of specific areas of the panel can also be dynamically changed, so that different areas feature different granularities at a given time. This also relates to panels that feature different inherent granularities in different portions thereof. These panels can be designed, for example, by placing more stimulus and/or data lines in different portions of the panel, thus ensuring different densities of pixels in the different portions. Optionally, these embodiments can also include the dynamic granularity changing features noted above.

Touch screen liquid crystal display

Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stack up but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. Tn another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane - s witching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed.

Touch screen liquid crystal display

Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane-switching (IPS) LCDs, In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed.