| Patent application number | Description | Published |
|---|
| 20080309627 | Integrated in-plane switching - This relates to adding multi-touch functionality to a display without the need of a separate multi-touch panel or layer overlaying the display. Instead, embodiments of the invention can advantageously utilize existing display circuitry to provide multi-touch functionality while adding relatively little circuitry that is specific to the multi-touch functionality. Thus, by sharing circuitry for the display and the multi-touch functionalities, embodiments of the invention can be implemented at a lower cost than the alternative of superimposing additional multi-touch related layers onto an existing display panel. Furthermore, since the display and multi-touch functionality can be implemented on the same circuit, they can be synchronized so that noise resulting from the display functionality does not detrimentally affect the multi-touch functionality and vice versa. | 12-18-2008 |
| 20080309633 | Touch-sensitive display - A substantially transparent mutual-capacitance touch sensor panel is disclosed having sensors fabricated on a single side of a substrate for detecting multi-touch events. Substantially transparent row and column traces can be formed on the same side of the substrate, separated by a thin dielectric material, using diamond, rectangular, or hexagonal rows and columns. Dummy shapes of the same material as the row and column traces can be formed alongside the rows and columns to provide optical uniformity. The metal traces in the border areas used to route the rows to the short edge of the substrate can also be formed on the same side of the substrate as the rows and columns. The metal traces can allow both the rows and columns to be routed to the same short edge of the substrate so that a small flex circuit can be bonded to only one side of the substrate. | 12-18-2008 |
| 20090091551 | SINGLE-LAYER TOUCH-SENSITIVE DISPLAY - A touch sensor panel having co-planar single-layer touch sensors fabricated on a single side of a substrate is disclosed. The drive and sense lines can be fabricated as column-like patterns in a first orientation and patches in a second orientation, where each column-like pattern in the first orientation is connected to a separate metal trace in the border area of the touch sensor panel, and all patches in each of multiple rows in the second orientation are connected together using a separate metal trace in the border area of the touch sensor panel. The metal traces in the border areas can be formed on the same side of the substrate as the patches and columns, but separated from the patches and column-like patterns by a dielectric layer. | 04-09-2009 |
| 20090266621 | Reliability Metal Traces - The formation of improved reliability conductive traces in touch sensor panels that are less prone to failures due to environmental effects is disclosed. Conductive traces, which can be formed from a stackup of metal layers or a single metal layer, can be protected with an additional photoimageable passivation layer of a material such as an organic polymer. This photoimageable coating can be patterned so that it does not appear in the visible area of the touch sensor panel, with much finer tolerances than conventional passivation layers to help keep product dimensions to a minimum. | 10-29-2009 |
| 20090273577 | Moire-Free Touch Screen with Tilted or Curved ITO Pattern - Touch screens that generate reduced Moiré effects are disclosed. To reduce Moiré effects, the columns (drive or sense lines) of a touch sensor panel can be oriented at an angle with respect to a display device so that the columns are not parallel with the sub-pixel and pixel arrangements of the display device. In some embodiments, the entire touch sensor panel can be oriented at an angle with respect to the display device. In other embodiments, certain lines in the touch sensor panel can be tilted, curved or formed in a zig-zag shape. | 11-05-2009 |
| 20090324899 | FULL PERIMETER CHEMICAL STRENGTHENING OF SUBSTRATES - Methods and apparatus for protecting the thin films during chemical and/or thermal edge strengthening treatment. In one embodiment, a portion of each individual sheet is laminated. Pairs of sheets are then sealed together such that the thin film sides face inward to form a thin film sandwich. In some embodiments, the sandwich in then immersed in a chemical strengthener. In other embodiments, a localized treatment is applied to the unstrengthened edges. | 12-31-2009 |
| 20090324939 | Method for Fabricating Thin Sheets of Glass - Fabrication of thin sheets of glass or other substrate material for use in devices such as touch sensor panels is disclosed. A pair of thick glass sheets, typically with thicknesses of 0.5 mm or greater each, may each be patterned with thin film on a surface, sealed together to form a sandwich with the patterned surfaces facing each other and spaced apart by removable spacers, either or both thinned on their outside surfaces to thicknesses of less than 0.5 mm each, and separated into two thin glass sheets. A single thick glass sheet, typically with a thickness of 0.5 mm or greater, may be patterned, covered with a protective layer over the pattern, thinned on its outside surface to a thickness of less than 0.5 mm, and the protective layer removed. This thinness of less than 0.5 mm may be accomplished using standard LCD equipment, despite the equipment having a sheet minimum thickness requirement of 0.5 mm. | 12-31-2009 |
| 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 |
| 20100035030 | INDIUM TIN OXIDE (ITO) LAYER FORMING - A layer of material, such as crystalline indium tin oxide (ITO), is formed on top of a substrate by heating the material to a high temperature, while a temperature increase of the substrate is limited such that the temperature of the substrate does not exceed a predetermined temperature. For example, a layer including amorphous ITO can be deposited on top of the substrate, and the amorphous layer can be heated in a surface anneal process using radiation while limiting substrate temperature. Another process can pass electrical current through the amorphous ITO. In another process, the substrate is passed through a high-temperature deposition chamber quickly, such that a portion of a layer of crystalline ITO is deposited, while the temperature increase of the substrate is limited. | 02-11-2010 |
| 20100060667 | ANGULARLY DEPENDENT DISPLAY OPTIMIZED FOR MULTIPLE VIEWING ANGLES - Methods and apparatus for providing optimized gamma settings for each of a plurality of viewing angles and/or device orientations. In certain types of display devices, off-axis viewing leads to contrast degradation and/or color aberrations in a perceived image, as luminance values depend on the angle at which the output is viewed. By remapping grayscale and/or color values to new output voltages, an image can be presented at an optimized luminance level when viewed from any specific angle. In some embodiments, the display device comprises an inclination sensor adapted to sense device rotation about at least one axis. Display parameter optimization logic reads data from the inclination sensor and automatically adjusts the display to an optimized gamma setting. | 03-11-2010 |
| 20100118235 | DISPLAY THAT EMITS CIRCULARLY-POLARIZED LIGHT - One embodiment of the present invention provides a display that emits circularly-polarized light. This display includes a display mechanism that emits linearly-polarized light and a layer placed in the path of the linearly-polarized light. The layer receives the linearly-polarized light on one surface, converts the linearly-polarized light to circularly-polarized light, and then emits the circularly-polarized light from another surface. By emitting circularly-polarized light, the display reduces the perceived distortion found at some angles when the display is viewed through a linearly-polarizing filter. | 05-13-2010 |
| 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 |
| 20100154992 | Layer-Specific Energy Distribution Delamination - Delamination of a laminated multilayer stack is provided by generating a layer-specific energy distribution in the stack during delamination. A localized energy transferrer can generate localized heating, cooling heating, cooling, or other form of energy absorption or transmission, in a bonding layer of a multilayer stack. Localized energy transfer can include thermal energy transfer, such as heating and/or cooling, acoustic energy transfer, such as applying ultrasonic energy, electromagnetic energy transfer, such as applying laser light, directed microwaves, etc. Localized energy transfer can generate a layer-specific energy distribution that can weaken the bonding layer while reducing damage to other layers of the stack. | 06-24-2010 |
| 20100165551 | REDUCING OPTICAL EFFECTS IN A DISPLAY - One embodiment may take the form of a system for reducing the appearance of optical effects in a display. The system may include an enclosure with a first surface and a second surface. Furthermore, the system may include spacers that may be deposited on the bottom face of the first surface and/or the top face of the second surface, where the first surface may be a touch panel and/or cover lens and the second surface may be a display module. The spacers may be deposited in one layer with an anti-reflection coating. The thickness of the coating may be less than the diameter of the spacers. | 07-01-2010 |
| 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 |
| 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 |
| 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 |
| 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 |
| 20100207959 | LCD TEMPORAL AND SPATIAL DITHERING - A method and system for temporal dithering of pixels in a display. The dithering of the pixels may allow for simulation of 8-bit color from a 6-bit display. Moreover, the dithering of the pixels may be selected to follow a specific pattern to minimize display artifacts, which might otherwise result from interference generated by pixel inversion techniques performed during the pixel dithering. Through application of selective dithering techniques, including utilization of specific dithering patterns, the generation of display artifacts via interference from pixel inversion techniques during the display of an image may be minimized. | 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 |
| 20100244701 | TEMPERATURE BASED WHITE POINT CONTROL IN BACKLIGHTS - Systems, methods, and devices are provided for maintaining a target white point on a light emitting diode based backlight. In one embodiment, the backlight may include two or more strings of light emitting diodes, each driven at a respective driving strength. Each string may include light emitting diodes from a different color bin, and the respective driving strengths may be adjusted, for example, through pulse width modulation or amplitude modulation, to maintain the target white point. In certain embodiments, the driving strengths may be adjusted to compensate for shifts in the white point that may occur due to temperature or aging. A controller may adjust the driving strengths based on feedback from a temperature sensor, from an optical sensor, from a user input, or from calibration data included within the backlight or system. | 09-30-2010 |
| 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 |
| 20100245227 | WHITE POINT CONTROL IN BACKLIGHTS - Systems, methods, and devices are provided for maintaining a target white point on a light emitting diode based backlight. In one embodiment, the backlight may include two or more strings of light emitting diodes, each driven at a respective driving strength. Each string may include light emitting diodes from a different color bin, and the respective driving strengths may be adjusted, for example, through pulse width modulation or amplitude modulation, to maintain the target white point. In certain embodiments, the driving strengths may be adjusted to compensate for shifts in the white point that may occur due to temperature or aging. A controller may adjust the driving strengths based on feedback from a temperature sensor, from an optical sensor, from a user input, or from calibration data included within the backlight or system. | 09-30-2010 |
| 20100245228 | AGING BASED WHITE POINT CONTROL IN BACKLIGHTS - Systems, methods, and devices are provided for maintaining a target white point on a light emitting diode based backlight. In one embodiment, the backlight may include two or more strings of light emitting diodes, each driven at a respective driving strength. Each string may include light emitting diodes from a different color bin, and the respective driving strengths may be adjusted, for example, through pulse width modulation or amplitude modulation, to maintain the target white point. In certain embodiments, the driving strengths may be adjusted to compensate for shifts in the white point that may occur due to temperature or aging. A controller may adjust the driving strengths based on feedback from a temperature sensor, from an optical sensor, from a user input, or from calibration data included within the backlight or system. | 09-30-2010 |
| 20100245723 | LCD PANEL HAVING IMPROVED RESPONSE - A liquid crystal display (LCD) having a liquid crystal layer is provided. In one embodiment, the liquid crystal layer includes a nematic liquid crystal material having liquid crystal molecules in an untwisted state. A chiral dopant is dispersed within the liquid crystal layer and configured to bias the liquid crystal molecules toward a twisted state. Furthermore, a polymer network is disposed among the liquid crystal molecules and configured to bias the liquid crystal molecules toward the untwisted state. Various additional devices and methods are also provided. | 09-30-2010 |
| 20100321609 | EDGE-LIT BACKLIGHT UNIT WITH THIN PROFILE - An edge-lit backlight unit for a display is provided. In one embodiment, the backlight unit may include a light guide configured to receive light from a source and emit such light in a broad distribution to a turning film disposed over the light guide. The turning film may be configured to redirect light received from the light guide toward a normal of the turning film. In one embodiment, the light guide may be configured such that peak light distribution therefrom occurs at an incident angle of approximately sixty degrees, with broad light distribution substantially occurring over an angular range between incident angles of thirty-five and eighty-five degrees. Additionally, in one embodiment, the turning film may include multiple prisms that receive and redirect the light emitted from the light guide, and that include apex angles of less than or about sixty degrees. Additional edge-lit backlight units and methods are also disclosed. | 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 |
| 20110005820 | FULL PERIMETER CHEMICAL STRENGTHENING OF SUBSTRATES - Methods and apparatus for protecting the thin films during chemical and/or thermal edge strengthening treatment. In one embodiment, a portion of each individual sheet is laminated. Pairs of sheets are then sealed together such that the thin film sides face inward to form a thin film sandwich. In some embodiments, the sandwich in then immersed in a chemical strengthener. In other embodiments, a localized treatment is applied to the unstrengthened edges. | 01-13-2011 |
| 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 |
| 20110030209 | 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. | 02-10-2011 |
| 20110043383 | PATTERNING OF THIN FILM LAYERS - Simplified patterning of layers of a thin film is disclosed. In some embodiments, the patterning can include patterning a first conductive layer using a patterned dielectric layer as a mask and patterning a second conductive layer using a patterned passivation layer as another mask. In other embodiments, the patterning can include patterning a first conductive layer using a removable photosensitive layer as a mask, patterning a black mask layer using a removable photo mask, and patterning a second conductive layer using a patterned passivation layer as another mask. In still other embodiments, the patterning can include patterning a first conductive layer using a patterned black mask layer as a mask and patterning a second conductive layer using a patterned passivation layer as another mask. An exemplary device utilizing the thin film so patterned can include a touch sensor panel. | 02-24-2011 |
| 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 |
| 20110109829 | METHODS FOR FABRICATING DISPLAY STRUCTURES - An electronic device display may have a color filter layer and a thin film transistor layer. A layer of liquid crystal material may be interposed between the color filter layer and the thin film transistor layer. A layer of polarizer may be laminated onto the surface of the color filter layer. Laser trimming may ensure that the edges of the polarizer are even with the edges of the color filter layer. The thin film transistor layer may have an array of thin film transistors that control pixels of the liquid crystal material in the display. Driver circuitry may be used to control the array. The driver circuitry may be encapsulated in a planarized encapsulant on the thin film transistor layer or may be mounted to the underside of the color filter layer. Conductive structures may connect driver circuitry on the color filter layer to the thin film transistor layer. | 05-12-2011 |
| 20110124260 | DISPLAY THAT EMITS CIRCULARLY-POLARIZED LIGHT - One embodiment of the present invention provides a display that emits circularly-polarized light. This display includes a display mechanism that emits linearly-polarized light and a layer placed in the path of the linearly-polarized light. The layer receives the linearly-polarized light on one surface, converts the linearly-polarized light to circularly-polarized light, and then emits the circularly-polarized light from another surface. By emitting circularly-polarized light, the display reduces the perceived distortion found at some angles when the display is viewed through a linearly-polarizing filter. | 05-26-2011 |
| 20110151202 | Controllable Placement of Liquid Adhesive on Substrate - Controllable placement of a liquid adhesive on a substrate to confine the adhesive to a desired area of the substrate is disclosed. A controllable placement method can include dispensing a liquid adhesive into a designated area on a surface of a substrate, controllably confining the dispensed liquid adhesive to the designated area, and curing the confined liquid adhesive. The dispensed liquid adhesive can be controllably confined using various techniques, such as electrical repulsion, electrical attraction, capacitance, electrowetting, light curing, adhesive attracting-repulsing coatings, and substrate topography. A substrate having a controllably placed liquid adhesive thereon can be incorporated into electronic devices, such as a mobile telephone, a digital media player, or a personal computer. | 06-23-2011 |
