Patents Examined by Kathy Wang-Hurst
  • System and method for improving visual effect of a display device
    Patent number: 9053557
    Abstract: A display system is disclosed. The display system comprises a display device; and a computing device. The computing device executes instructions to receive a first plurality of sub-pixel values of a first plurality of sub-pixels of an image. The first plurality of sub-pixels have a plurality of colors. The computing device further executes instructions to select a first sub-pixel of the first plurality of sub-pixels. The first sub-pixel has a first color and is spatially close to a second sub-pixel of the first plurality of sub-pixels. The second sub-pixel has the first color. The computing device further executes instructions to generate a second plurality of sub-pixel values of a second plurality of sub-pixels based on at least first and second sub-pixel values corresponding to the first and second sub-pixels of the first plurality of sub-pixels.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: June 9, 2015
    Assignee: Industrial Technology Research Institute
    Inventors: Chen-Wei Lin, King-Yuan Ho, Jing-Yi Yan
  • Display apparatus and method for generating gate signal thereof
    Patent number: 9035933
    Abstract: A display apparatus and a method for generating gate signal thereof are provided. The display apparatus includes a timing controller and a display panel. The timing controller is used for providing a plurality of timing signals. The display panel includes a pixel array and a gate drive circuit. The pixel array has a plurality of pixels. The gate drive circuit is electrically connected to the timing controller and the pixel array and including a plurality of shift register circuits. The shift register circuit includes a first shift register and a second shift register. The first shift register is configured for generating a corresponding primary gate signal. The second shift register is configured for generating a corresponding secondary gate signal. The timing controller adjusts overlapping relations of the timing signals according to a frame rate of the display apparatus.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: May 19, 2015
    Assignee: Au Optronics Corporation
    Inventors: Ya-Ting Lin, Yu-Chung Yang, Chun-Hsin Liu, Kun-Yueh Lin
  • Liquid display panel driving method
    Patent number: 9030396
    Abstract: A liquid display panel driving method to drive a plurality of pixels of a liquid display panel in a frame period comprising a plurality of data input intervals is provided. Each pixel comprises first and second capacitors coupled to a first and second common electrode respectively. The liquid display panel driving method comprises the steps of: keeping the second common electrode at the same voltage level; modifying the voltage of the first common electrode of each pixel along a row of scan line to perform a first pre-charge before the data input interval; turning on the pixels to make each pixel receive the data voltage from the data lines during the data input interval; and turning off the pixels and modifying the voltage of the first common electrode to further set the voltage of each of the pixels to a target level after the data input interval.
    Type: Grant
    Filed: April 1, 2009
    Date of Patent: May 12, 2015
    Assignee: Au Optronics Corporation
    Inventors: Cheng-Chiu Pai, Deniz Yurdasen, Chun-Huai Li, Kung-Yi Chan, Chun-Hung Kuo, Huan-Hsin Li
  • Pixel and organic light emitting display using the same
    Patent number: 9024934
    Abstract: A pixel capable of displaying an image with uniform brightness. The pixel includes an organic light emitting diode (OLED), a first transistor controlling an amount of current that flows from a second node coupled to a first power supply to a second power supply via the OLED to correspond to a voltage applied to a first node, a second transistor coupled between the first node and an initializing power supply, and a third transistor turned on to supply a predetermined voltage to the second node at the moment when the second transistor is turned on.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: May 5, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ok-Kyung Park, Dong-Hwi Kim
  • Method of detecting touch position, touch position detecting apparatus for performing the method and display apparatus having the touch position detecting apparatus
    Patent number: 9024914
    Abstract: In a method of detecting a touch position, light is emitted. A plurality of light beams derived from the emitted light is received. The light beams have different paths from each other. The light beams are partially reflected according to a touch. The touch position is detected based on an amount of light in the received light beams. According to the present invention, the touch positions of several touching elements may be individually detected.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: May 5, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventor: Guk-Hyun Kim
  • Touchscreen with bridged force-sensitive resistors
    Patent number: 9024910
    Abstract: A touch sensor may include a digital resistive touch (DRT) sensor architecture that is substantially free of air gaps. The DRT touch sensor may include a layer of force-sensitive resistor (FSR) material on an array of row and column electrodes. The electrodes may be formed on a substantially transparent substrate. Near the intersection of each row and column, one or more thin transparent patterned conductive bridges may be situated above the FSR. The conductive bridges may be configured for electrical connection with row and column electrodes when force is applied to the conductive bridge or surface of the touch sensor. Some touch sensors may include both DRT and projected capacitive touch (PCT) functionality.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: May 5, 2015
    Assignee: QUALCOMM MEMS Technologies, Inc.
    Inventors: Philip Jason Stephanou, Nicholas Ian Buchan, David William Burns, Kristopher Andrew Lavery, Srinivasan Kodaganallur Ganapathi
  • Controlling system and a controlling method of a touch panel, and a stylus pen for applying to the touch panel
    Patent number: 9024893
    Abstract: A controlling system of a touch panel comprises of a drive signal generating circuit, a sensing module for sensing a waveform signal from the touch panel, and a signal processing module for enabling and disabling the drive signal generating circuit based on the signal outputted by the sensing module. Therefore, the mentioned controlling system can support the active and the passive touch modes. In addition, the present invention further provides a controlling method of the touch panel and a stylus pen applied to the mentioned controlling system.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: May 5, 2015
    Assignee: TPK Touch Solutions Inc.
    Inventors: Chun-Hsueh Chu, Jui-Jung Chiu
  • Electrophoretic display apparatus switchable between black-white mode and color mode
    Patent number: 9019199
    Abstract: Disclosed herein is an electrophoretic display apparatus switchable between a black-white mode and a color mode. The electrophoretic display apparatus includes an electrophoretic display panel, a light guide, a light source, a light-splitting element and a lens element. The light guide is disposed in front of a display area of the electrophoretic display panel. The light source is operable to emit a light, which is directed to the display area by the light guide. The light-splitting element is disposed between the light guide and the electrophoretic display panel, and is operable to split the light into a first, a second and a third beam each having a principal wavelength different from the others. The lens element is disposed between the light-splitting element and the display area, and is operable to direct the first, second and third beams to corresponding sub-pixels.
    Type: Grant
    Filed: November 6, 2012
    Date of Patent: April 28, 2015
    Assignee: E Ink Holdings Inc.
    Inventor: Shih-Yu Wang
  • Display element, image display system, and method of controlling display element
    Patent number: 9013526
    Abstract: A display element includes a transmission/diffusion switching layer switched between a diffusion state of diffusing visible light and a transmission state of transmitting visible light by electrical switching, and a transmission/reflection switching layer switched between a reflection state of reflecting visible light and a transmission state of transmitting visible light by electrical switching, and the transmission/diffusion switching layer and the transmission/reflection switching layer overlap each other.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: April 21, 2015
    Assignee: Seiko Epson Corporation
    Inventor: Taisuke Yamauchi
  • Self-capacitance measurement with isolated capacitance
    Patent number: 9013444
    Abstract: In one embodiment, a method includes dividing a first amount of charge between a capacitance of a touch sensor and a compensation capacitor. The division of the first amount of charge results in a first voltage at an input node. The method also includes isolating the capacitance of the touch sensor from the compensation capacitor; and applying a reference voltage at the input node and a supply voltage at the compensation capacitor. The application of the reference voltage at the input node induces a second amount of charge proportional to a difference between the first voltage and the reference voltage on an integration capacitor. The method also includes determining a first difference between the first voltage and the reference voltage based on a second amount of charge on the integration capacitor; and determining whether a touch input to the touch sensor has occurred based on the first difference.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: April 21, 2015
    Assignee: Atmel Corporation
    Inventors: Ingar Hanssen, Rian Whelan
  • Pixel and organic light emitting display using the same
    Patent number: 9013374
    Abstract: A pixel circuit for an organic light emitting diode display is disclosed. The pixel is configured to provide fast response time and good isolation from data transition coupling.
    Type: Grant
    Filed: August 6, 2010
    Date of Patent: April 21, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventor: Sam-Il Han
  • Brightness controller, brightness control method, and computer program product
    Patent number: 9007278
    Abstract: According to one embodiment, a brightness controller includes a plurality of display modules, a specifying module, and a controller. The display modules each include a display screen the brightness of which is adjustable. The specifying module specifies at least one of the display modules to display an application. The controller individually controls the brightness of the display screen of the display module specified by the specifying module based on features of the application displayed on the display module.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: April 14, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Michio Seki, Kazuaki Yamaguchi
  • Liquid crystal display device including touch panel
    Patent number: 9007329
    Abstract: A liquid crystal display device in which a touch panel is embedded in a liquid crystal panel, which reduces the number of processes and eases assembly. The liquid crystal display device includes first and second substrates opposite each other, a thin film transistor array formed on the first substrate, a touch sensing part formed on the second substrate including a plurality of transparent X electrodes, a plurality of transparent Y electrodes orthogonally intersecting each other and a first transparent insulating film between the X electrodes and the Y electrodes, a color filter array formed on the touch sensing part, and a liquid crystal layer formed between the thin film transistor array and the color filter array.
    Type: Grant
    Filed: November 17, 2008
    Date of Patent: April 14, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Deuk Su Lee, Hye Jin Lee, Hyung Seok Park
  • Position sensing panel
    Patent number: 9007332
    Abstract: A position sensing panel may include electrode connecting lines from two different sets of electrodes arranged so that the distance between a side edge of a connecting line from one of the set of electrodes and a center of an adjacent connecting line from the same set of electrodes may be less than the distance between the connecting line and a nearest connecting line from the other set of electrodes.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: April 14, 2015
    Assignee: Atmel Corporation
    Inventors: Gareth Michael Jones, Esat Yilmaz
  • Dynamic contrast ratio processing method and apparatus of liquid crystal displaying apparatus
    Patent number: 9007295
    Abstract: The present invention relates to a dynamic contrast ratio processing method and apparatus of a liquid crystal displaying apparatus.
    Type: Grant
    Filed: April 1, 2009
    Date of Patent: April 14, 2015
    Assignee: Beijing Boe Optoelectronics Technology Co., Ltd.
    Inventor: Hyungdae Kim
  • Display panel having crossover connections effecting dot inversion
    Patent number: 9001167
    Abstract: A display device having subpixel repeating groups is presented. Each subpixel repeating group has an even number of four or more subpixels and includes odd-numbered subpixels and even-numbered subpixels alternately arranged in a row direction, each subpixel having a color. A data driver is configured to provide data signals to the subpixels such that the odd-numbered subpixels have a polarity that is opposite that of the even-numbered subpixels in each of the subpixel repeating groups. A first subpixel repeating group and a second subpixel repeating group are adjacent in the row direction. The first subpixel of the first subpixel repeating group and the first subpixel of the second subpixel repeating group have the same color and opposite polarities.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: April 7, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Thomas Lloyd Credelle, Matthew Osborne Schlegel
  • Image display and image display method
    Patent number: 9001099
    Abstract: An image display includes: a display panel in which a plurality of pixels including first display elements, respectively, are two-dimensionally arranged; a drive section deriving, from a plurality of pieces of still image data and display times of a plurality of still images based on the plurality of pieces of still image data, an accumulated display time of each first display element in each still image data when the plurality of still images are sequentially displayed from one to another, and deriving, from the accumulated display time of each first display element derived in each still image data and degradation characteristic data stored in a memory section, a correction amount of each still image data in each pixel, and further sequentially displaying a plurality of still images based on a plurality of pieces of still image data corrected with use of the obtained correction amount from one to another.
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: April 7, 2015
    Assignee: Sony Corporation
    Inventors: Munenori Ono, Katsuhide Uchino, Hiroshi Hasegawa, Kazuo Nakamura
  • Display system and associated control method
    Patent number: 8994702
    Abstract: A display system capable of being coupled to a host includes: a display controller; a display port (DP), including a main link, an auxiliary channel and a signal detection end; a DP engine, coupled to the DP via the main link, the auxiliary channel and the signal detection end, for outputting an image signal to the display controller; and a detection circuit, coupled to the DP via the auxiliary channel, for selectively outputting an indication signal to the DP engine in response to a communication signal in the auxiliary signal pair in the auxiliary channel.
    Type: Grant
    Filed: January 10, 2012
    Date of Patent: March 31, 2015
    Assignee: MStar Semiconductor, Inc.
    Inventor: Meng-Che Tsai
  • Column inversion techniques for improved transmittance
    Patent number: 8988334
    Abstract: Present techniques involve methods and systems of inversion patterns for pixels in a display. Inversion techniques involve driving image signals having a first polarity to data lines of a pixel matrix during a first time period and driving image signals having an opposite polarity to the data lines during a second time period. In some embodiments, the pixels may be configured to have electrodes having only two finger electrodes, thus widening the distance between electrodes and decreasing the susceptibility for crosstalk between pixels. In some embodiments, horizontal cross-talk of electromagnetic fields between pixels may be further reduced by configuring the data line driving scheme such that voltage polarity is flipped for the pixels along every two, three, or more data line columns. Furthermore, a Z inversion pattern may be employed to reduce the occurrence of undesirable display artifacts.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: March 24, 2015
    Assignee: Apple Inc.
    Inventors: Zhibing Ge, Yongman Lee, Shih Chang Chang, Cheng Chen, Hopil Bae, Ming Xu, Shawn Robert Gettemy, Wei H. Yao
  • Light emitting device, method of driving a light emitting device, element substrate, and electronic equipment
    Patent number: 8982021
    Abstract: A display device capable of obtaining a constant luminance without being influenced by temperature change is provided as well as a method of driving the display device. A current mirror circuit composed of a first transistor and a second transistor is provided in each pixel. The first transistor and second transistor of the current mirror circuit are connected such that their drain currents are kept almost equal irrespective of the level of load resistance. By controlling the OLED drive current using the current mirror circuit, a change in OLED drive current due to fluctuation in characteristics between transistors is avoided and a constant luminance is obtained without being influenced by temperature change.
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: March 17, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Hajime Kimura