| Patent application number | Description | Published |
|---|
| 20100001973 | DISPLAY WITH DUAL-FUNCTION CAPACITIVE ELEMENTS - A touch screen including display pixels with capacitive elements is provided. The touch screen includes first common voltage lines connecting capacitive elements in adjacent display pixels, and a second common voltage line connecting first common voltage lines. The pixels can be formed as electrically separated regions by including breaks in the common voltage lines. The regions can include a drive region that is stimulated by stimulation signals, a sense region that receives sense signals corresponding to the stimulation signals. A grounded region can also be included, for example, between a sense region and a drive region. A shield layer can be formed of a substantially high resistance material and disposed to shield a sense region. A black mask line and conductive line under the black mask line can be included, for example, to provide low-resistance paths between a region of pixels and touch circuitry outside the touch screen borders. | 01-07-2010 |
| 20100123866 | Common Bus Design for a TFT-LCD Display - Embodiments of the present invention provide for a FFS TFT LCD with a high refresh rate without limiting the aperture of individual pixels. More specifically, embodiments of the invention provide for the use of common bus lines to reduce the effective resistance of the common electrode and to therefore allow for higher refresh rates of the display. Furthermore, the common bus lines can be positioned in such a manner so that they do not further reduce the aperture of the display. More specifically, the common bus lines can be positioned above or below existing elements of the display that are already opaque. Thus, adding the common bus lines need not reduce the aperture. The above can be achieved by, for example, placing the common bus lines above or below existing non-transparent lines, such as gate lines or data lines. | 05-20-2010 |
| 20100141608 | Index Matching For Touch Screens - Index matching for touch screens is provided. An index matching stackup for a touch screen can be formed including a substantially transparent substrate, a substantially transparent conductive layer disposed in a pattern, and an index matching layer for improving an optical uniformity of the touch screen. The index matching layer can also be designed to operate as a dual-function layer. In one dual-function design, the index matching layer design performs both index matching and passivating the conductive layer. In another dual-function design, the index matching layer performs both index matching and adhesion of layers. The index matching layer can also be designed to serve all three functions of index matching, passivating, and adhering. | 06-10-2010 |
| 20100144391 | Integrated touch panel for a TFT display - This relates to displays for which the use of dual function capacitive elements does not result in any decreases of the aperture of the display. Thus, touch sensitive displays that have aperture ratios that are no worse than similar non-touch sensing displays can be manufactured. More specifically, this relates to placing touch sensing opaque elements so as to ensure that they are substantially overlapped by display related opaque elements, thus ensuring that the addition of the touch sensing elements does not substantially reduce the aperture ratio. The touch sensing display elements can be, for example, common lines that connect various capacitive elements that are configured to operate collectively as an element of the touch sensing system. | 06-10-2010 |
| 20100175249 | Method for Fabricating Thin Touch Sensor Panels - A method for fabricating thin DITO or SITO touch sensor panels with a thickness less than a minimum thickness tolerance of existing manufacturing equipment. In one embodiment, a sandwich of two thin glass sheets is formed such that the combined thickness of the glass sheets does not drop below the minimum thickness tolerance of existing manufacturing equipment when thin film process is performed on the surfaces of the sandwich during fabrication. The sandwich may eventually be separated to form two thin SITO/DITO panels. In another embodiment, the fabrication process involves laminating two patterned thick substrates, each having at least the minimum thickness tolerance of existing manufacturing equipment. One or both of the sides of the laminated substrates are then thinned so that when the substrates are separated, each is a thin DITO/SITO panel having a thickness less than the minimum thickness tolerance of existing manufacturing equipment. | 07-15-2010 |
| 20100194695 | Dual Configuration for Display Data Lines - A display having data lines that can be configured between a display mode and a touch mode is disclosed. The display can have sense regions for sensing a touch or near touch on the display during the touch mode. These same regions can display graphics or data on the display during the display mode. During display mode, the data lines in the sense regions can be configured to couple to display circuitry in order to receive data signals from the circuitry for displaying. During touch mode, the data lines in the sense regions can be configured to couple to corresponding sense lines in the regions, which in turn can couple to touch circuitry, in order to transmit touch signals to the circuitry for sensing a touch or near touch. Alternatively, during touch mode, the data lines in the sense regions can be configured to couple to ground in order to transmit residual data signals to ground for discarding. | 08-05-2010 |
| 20100194696 | Touch Regions in Diamond Configuration - Touch regions in a diamond configuration in a touch sensitive device are disclosed. Touch regions can include drive regions of display pixels to receive stimulation signals and sense regions of display pixels to send touch signals based on a touch or near touch. The drive regions and sense regions can be disposed diagonally adjacent to each other to form a diamond configuration. In an example diamond configuration, diagonal drive regions can be separate and unconnected from each other, while diagonal sense regions can be electrically connected to each other via their sense lines. The diagonal sense region connections can be in a forward diagonal direction, a backward diagonal direction, or a combination thereof. In an alternate example diamond configuration, diagonal drive regions can be electrically connected to each other via their drive lines, while diagonal sense regions can be electrically connected to each other via their sense lines. The diagonal drive and sense region connections can be in a forward diagonal direction, a backward diagonal direction, or combinations thereof. An exemplary touch sensitive device having a diamond configuration can be a touch screen. | 08-05-2010 |
| 20100194697 | Integrated Touch Screen - Displays with touch sensing circuitry integrated into the display pixel stackup are provided. Circuit elements, such as touch signal lines, such as drive lines and sense lines, grounding regions, in the display pixel stackups can be grouped together to form touch sensing circuitry that senses a touch on or near the display. An integrated touch screen can include multi-function circuit elements that can operate as circuitry of the display system to generate an image on the display, and can also form part of a touch sensing system that senses one or more touches on or near the display. The multi-function circuit elements can be, for example, capacitors in display pixels that can be configured to operate as storage capacitors/electrodes, common electrodes, conductive wires/pathways, etc., of the display circuitry in the display system, and that may also be configured to operate as circuit elements of the touch sensing circuitry. | 08-05-2010 |
| 20100194698 | SWITCHING CIRCUITRY FOR TOUCH SENSITIVE DISPLAY - A circuit for switching an LCD between display and touch modes is disclosed. The circuit can include one or more switches configured to switch one or more drive, sense, and data lines in LCD pixels according to the mode. During touch mode, the circuit switches can be configured to switch one or more drive lines to receive stimulation signals, one or more sense lines to transmit touch signals, and one or more data lines to transmit residual data signals. During display mode, the circuit switches can be configured to switch one or more drive lines and sense lines to receive common voltage signals and one or more data lines to receive data signals. The circuit can be formed around the border of the LCD chip or partially or fully on a separate chip. | 08-05-2010 |
| 20100194699 | Integrated Touch Screen - Displays with touch sensing circuitry integrated into the display pixel stackup are provided. Circuit elements, such as touch signal lines, such as drive lines and sense lines, grounding regions, in the display pixel stackups can be grouped together to form touch sensing circuitry that senses a touch on or near the display. An integrated touch screen can include multi-function circuit elements that can operate as circuitry of the display system to generate an image on the display, and can also form part of a touch sensing system that senses one or more touches on or near the display. The multi-function circuit elements can be, for example, capacitors in display pixels that can be configured to operate as storage capacitors/electrodes, common electrodes, conductive wires/pathways, etc., of the display circuitry in the display system, and that may also be configured to operate as circuit elements of the touch sensing circuitry. | 08-05-2010 |
| 20100194707 | Integrated Touch Screen - Displays with touch sensing circuitry integrated into the display pixel stackup are provided. Circuit elements, such as touch signal lines, such as drive lines and sense lines, grounding regions, in the display pixel stackups can be grouped together to form touch sensing circuitry that senses a touch on or near the display. An integrated touch screen can include multi-function circuit elements that can operate as circuitry of the display system to generate an image on the display, and can also form part of a touch sensing system that senses one or more touches on or near the display. The multi-function circuit elements can be, for example, capacitors in display pixels that can be configured to operate as storage capacitors/electrodes, common electrodes, conductive wires/pathways, etc., of the display circuitry in the display system, and that may also be configured to operate as circuit elements of the touch sensing circuitry. | 08-05-2010 |
| 20100207853 | ELECTRODES FOR USE IN DISPLAYS - A liquid crystal display (LCD) is provided having a discontinuous electrode. In certain embodiments, finger- or slit-like extensions of the discontinuous electrode may be shaped to reduce or eliminate disclinations of liquid crystals within a pixel aperture used to transmit light, where the liquid crystals are oriented in response to an electric field generated using the discontinuous electrode. Similarly, in other embodiments, the different portions of the discontinuous electrode may be lengthened to extend under an opaque mask or may not be linked at one end to reduce or eliminate the disclinations. | 08-19-2010 |
| 20100207854 | PLACEMENT AND SHAPE OF ELECTRODES FOR USE IN DISPLAYS - A liquid crystal display (LCD) is provided having a discontinuous electrode. In certain embodiments, different portions (such as finger- or slit-like extensions) of the discontinuous electrode may be at different depths relative to one another and/or may be of different widths relative to one another. Similarly, in other embodiments, the different portions of the discontinuous electrode may be spaced apart in a non-uniform manner. | 08-19-2010 |
| 20100207857 | Undulating Electrodes for Improved Viewing Angle and Color Shift - The present disclosure generally provides for a variety of multi-domain pixel configurations that may be implemented in the unit pixels of an LCD display device, such as a fringe field switching LCD display panel. An LCD display device utilizing one or more of the presently disclosed techniques disclosed herein may exhibit improved display properties, such as viewing angle, color shift, and transmittance properties, relative to those exhibited by conventional multi-domain designs. | 08-19-2010 |
| 20100207858 | LCD Pixel Design Varying by Color - A liquid crystal display (LCD) having a plurality of pixels is provided. In one embodiment, the pixels of the LCD each include common and pixel electrodes formed on an insulating layer, and a liquid crystal layer responsive to electric fields generated by the electrodes. The plurality of pixels may include two or more sets of pixels each configured to transmit light of a different color, and the pixel electrodes of one set of pixels may be configured differently from those of another set. In other embodiments, the sizes of the pixels may differ. Various additional devices and methods are also provided. | 08-19-2010 |
| 20100207860 | VIA DESIGN FOR USE IN DISPLAYS - A liquid crystal display (LCD) is provided having transistors disposed within via holes having elongated (e.g., rectangular or oval) contact areas. The use of via holes having elongated contact areas allows an opaque mask defining an aperture for light transmission to be lengthened, thereby increasing the overall area of the aperture. The increase in the area of the aperture may increase the amount of light that can pass through the aperture. | 08-19-2010 |
| 20100207861 | Advanced Pixel Design for Optimized Driving - Systems, devices, and methods for reducing common voltage loading and/or enabling a simplified manner of polarity inversion in liquid crystal display (LCD) devices are provided. In accordance with one embodiment, a device may include a processor, a memory device, and a liquid crystal display having a pixel array including rows and columns of pixels. The pixels of each row of the pixel array may be configured to cause an approximately even amount of common voltage loading to be shared between one of a first plurality of common electrodes and one of a second plurality of common electrodes when the pixels of each row of the pixel array receive a scanning signal and a data signal. | 08-19-2010 |
| 20100207862 | Pseudo Multi-Domain Design for Improved Viewing Angle and Color Shift - Aspects of the present disclosure relate to single-domain electrode configurations that may be implemented in the unit pixels of a LCD device, such as a fringe field switching (FFS) LCD, to provide a “pseudo-multi-domain” effect, wherein the benefits of both conventional single-domain and multi-domain pixel configuration devices are retained. In accordance with aspects of the present technique, single-domain unit pixels are angled or tilted in differing directions with respect to a vertical axis of the LCD panel (e.g., y-axis) to provide an alternating and/or periodic arrangement of different-angled pixel electrodes along each scanning line, data line, or a combination of both scanning and data lines. In this manner, the transmittance rates of conventional single-domain LCD panels may be retained while providing for improved viewing angle and color shift properties typical of conventional multi-domain LCD panels. | 08-19-2010 |
| 20100208179 | Pixel Black Mask Design and Formation Technique - A display panel is provided having a first substrate including an electrode configured to generate an electric field and a second substrate including a black mask. The black mask includes an aperture configured to enable light to be transmitted through the aperture, wherein the aperture is at least substantially rectangular and includes corners that are not substantially chamfered. The display panel also includes liquid crystal disposed between the first and second substrates and configured to facilitate passage of light through the display panel in response to the electric field. | 08-19-2010 |
| 20100245224 | LCD ELECTRODE ARRANGEMENT - Systems, devices, and methods for reducing direct current bias and/or enabling a simplified manner of polarity inversion in liquid crystal display (LCD) devices are provided. In accordance with one embodiment, a device may include a processor, a memory device, and a liquid crystal display having a pixel array including rows and columns of pixels. Each pixel of the pixel array may include a pixel electrode separated from a common electrode by a dielectric passivation layer, and may include a transistor to provide a data signal when the transistor is activated. The pixel array is configured such that a neutral amount of direct current bias is generated on the passivation layer when each row of pixels is activated. The common electrodes of certain pixels may be disposed above their respective pixel electrodes, while the common electrodes of certain other pixels may be disposed below their respective pixel electrodes. | 09-30-2010 |
| 20100253638 | Integrated Touch Sensitive Display Gate Driver - A gate driver circuit for switching gate line voltage supplies between display and touch modes is disclosed. The circuit can include one or more switches configured to switch one or more gate lines of an integrated touch sensitive display between a display mode and a touch mode. During touch mode, the circuit can be configured to switch the gate lines to connect to a more stable voltage supply. The circuit can also be configured to reduce or eliminate interference from the display circuitry to the touch circuitry that could affect touch sensing. During display mode, the circuit can be configured to switch the gate lines to connect to a fluctuating voltage supply. | 10-07-2010 |
| 20100265187 | SIGNAL ROUTING IN AN OLED STRUCTURE THAT INCLUDES A TOUCH ACTUATED SENSOR CONFIGURATION - Briefly, in accordance with one embodiment, signal routing for a touch sensor configuration may occur via a transistor driver integrated with an OLED structure. | 10-21-2010 |
| 20100265188 | TOUCH ACTUATED SENSOR CONFIGURATION INTEGRATED WITH AN OLED STRUCTURE - Briefly, in accordance with one embodiment, a passive touch sensor configuration is integrated with an OLED structure. | 10-21-2010 |
| 20100321305 | DRIVING AN OLED DISPLAY STRUCTURE INTEGRATED WITH A TOUCH SENSOR CONFIGURATION - Briefly, in accordance with one embodiment, a method is provided of driving an OLED display structure integrated with a touch sensor configuration. | 12-23-2010 |
| 20100323166 | Transparent Conductor Thin Film Formation - Substantially transparent conductor layers in touch sensing systems may be formed by forming a barrier layer between an organic layer and a substantially transparent conductive layer. For example, a barrier layer can be formed over the organic layer, and the transparent conductor layer can be formed over the barrier layer. The barrier layer can reduce or prevent outgassing of the organic layer, to help increase the quality of the transparent conductor layer. In another example, a combination layer of two different types of a transparent conductor may be formed over the organic layer by forming a barrier layer of the transparent conductor, and forming a second layer of the transparent conductor on the barrier layer. Outgassing that can occur when forming the barrier layer can cause the transparent conductor of the barrier layer to be of lower-quality, but can result in a higher-quality transparent conductor of the second layer. | 12-23-2010 |
| 20110006999 | METHOD FOR FABRICATING TOUCH SENSOR PANELS - A method for manufacturing a patterned thin film layer on an uneven substrate is provided. The substrate having an outer surface and an inner surface. The method includes creating a cavity on the inner surface of the substrate, the cavity creating a cavity surface on a different plane as compared to the inner surface and a step between the cavity surface and the inner surface; forming a thin film layer on the inner surface of the substrate covering at least a part of the cavity surface, the step and the inner surface; performing laser ablation on the thin film layer to create patterns, at least some of which are created on the cavity surface, the step and the inner surface. | 01-13-2011 |
| 20110050585 | INTEGRATED TOUCH SCREEN - Displays with integrated touch sensing circuitry are provided. An integrated touch screen can include multi-function circuit elements that form part of the display circuitry of the display system that generates an image on the display, and also form part of the touch sensing circuitry of a touch sensing system that senses one or more touches on or near the display. The multi-function circuit elements can be, for example, capacitors in display pixels of an LCD that are configured to operate as display circuitry in the display system, and that may also be configured to operate as touch circuitry of the touch sensing system. For example, one or more circuit elements of the display pixel stackup can form a conductive portion of the touch sensing system, such as a charge collector, which can be operated with switches and conductive lines to sense touch. | 03-03-2011 |
| 20110074705 | Touch Screen Border Regions - Touch screens with more compact border regions can include an active area that includes touch sensing circuitry including drive lines, and a border region around the active area. The border region can include an area of sealant deposited on conductive lines, and transistor circuitry, such as gate drivers, between the active area and the sealant. The conductive lines can extend from the sealant to the active area without electrically connecting to the transistor circuitry. The conductive lines can have equal impedances and can connect the drive lines to a touch controller off of the touch screen. A set of drive signal characteristics for the drive lines can be obtained by determining a transfer function associated with each drive line, obtaining an inverse of each transfer function, and applying a set of individual sense signal characteristics to the inverse transfer functions to obtain the corresponding set of drive signal characteristics. | 03-31-2011 |
