Patents by Inventor Kuo-Hsing Cheng

Kuo-Hsing Cheng has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20110096018
    Abstract: A touch display panel includes a display panel and a touch sensing unit. The touch sensing unit includes first sensing series, and second sensing series. Each of the first sensing series includes a plurality of first transparent sensing pads disposed along a first direction, and a plurality of non-transparent bridge lines disposed along the first direction. Each of the non-transparent bridge lines is disposed between two adjacent first transparent sensing pads, overlapping with two adjacent first transparent sensing pads, and electrically connected to two adjacent first transparent sensing pads. The line width of each non-transparent bridge line is substantially between 0.5 micrometers and 10 micrometers, and the reduction of aperture ratio in a pixel region of the touch display panel caused by the non-transparent bridge lines is substantially between 0.1% and 5%.
    Type: Application
    Filed: February 5, 2010
    Publication date: April 28, 2011
    Inventors: Hsin-Hung Lee, Pei-Yu Chen, Yu-Mei Chiu, Wei-Jen Chang, Yu-Chuan Lin, Kuo-Hsing Cheng
  • Publication number: 20110090170
    Abstract: A touch substrate including a substrate, a plurality of first sensing series, a plurality of second sensing series, a plurality of signal pads, a plurality of signal transmission lines, and a plurality of conductive patterns is provided. The substrate has an active region and a peripheral region located outside the active region. The first and the second sensing series are disposed on the substrate and located in the active region. The signal pads are disposed on the substrate and located at the peripheral region. The signal transmission lines are disposed on the substrate and located in the peripheral region, and connect the first sensing series and the second sensing series to the corresponding signal pads. Each signal transmission line includes a winding portion disposed adjacent to one corresponding signal pad. Each conductive pattern is disposed on one signal pad and extends above the winding portion of one signal transmission line.
    Type: Application
    Filed: March 17, 2010
    Publication date: April 21, 2011
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Yu-Chuan Lin, Chun-Chi Lai, Jing-Tin Kuo, Kuo-Hsing Cheng
  • Patent number: 7928942
    Abstract: A signal-driving system for constructing gate signals of liquid crystal display (LCD), includes a plural stage of cascaded shift register units. Each stage of shift register unit includes a first pull-up switch unit, which is turned on for outputting a gate pulse on an output of this stage, based on either the first clock signal or the second clock signal; a pull-up driving unit, which is used for providing a driving pulse via a node for driving the first pull-up switch unit; a first pull-down switch unit, which is turned on to connect the output to a low-level voltage source; a second pull-down switch unit, which is turned on to connect said node to the low-level voltage source; a carry buffer unit, which is used for providing a control pulse on the second pull-down switch unit of previous stage, based on either the first clock signal or the second clock signal, and thereby ensuring operation of each stage independent of gate pulse signals outputted from the other stages.
    Type: Grant
    Filed: August 28, 2007
    Date of Patent: April 19, 2011
    Assignee: AU Optronics Corp.
    Inventors: Yu-ju Kuo, Ming-sheng Lai, Kuo-hsing Cheng, Chih-yuan Chien
  • Patent number: 7924259
    Abstract: A display apparatus comprises a shift register array. The shift register array comprises a plurality of shift registers. At least one shift register comprises a first transistor, a second transistor, a third transistor, and a driving circuit. The gate and the first electrode of the first transistor receive an input signal. The gate of the second transistor is coupled to the second electrode of the first transistor. The second electrode of the second transistor generates an output signal. The first electrode of the second transistor receives a clock signal. The third transistor is used to pull down a voltage level at the gate of the second transistor. The driving circuit determines an on/off status of the third transistor in response to the input signal and the output signal.
    Type: Grant
    Filed: March 7, 2007
    Date of Patent: April 12, 2011
    Assignee: Au Optronics Corp.
    Inventors: Chih-Yuan Chien, Yu Ju Kuo, Ming Sheng Lai, Kuo Hsing Cheng
  • Patent number: 7924350
    Abstract: The present invention relates to a liquid crystal display (LCD). The LCD includes a plurality of display units formed with a first substrate, a color matrix formed on the first substrate, and a common electrode formed on the color matrix, a second substrate spaced from the first substrate, a pixel electrode matrix formed on the second substrate, a liquid crystal material disposed between the common electrode and the pixel electrode matrix. The LCD includes a touch sensing member integrated onto the color matrix of the first substrate.
    Type: Grant
    Filed: October 12, 2007
    Date of Patent: April 12, 2011
    Assignee: AU Optronics Corporation
    Inventors: Mei-Sheng Ma, Kuo-Hsing Cheng, Hsin-Hung Lee, Meng-Hsiang Chang, Yuan-Chun Wu
  • Patent number: 7924965
    Abstract: A clock generator is illustrated. The clock generator mentioned above includes a multimodulus frequency divider and a delta-sigma modulator. The multimodulus frequency divider is archived by switching the phase thereof. The multimodulus frequency divider increases the operating frequency of the clock generator effectively, and has a characteristic with half period resolution for reducing the jitter of an output clock signal when its spectrum is spread. Besides, the delta-sigma modulator increases the accuracy of the triangle modulation and reduces error of quantization by adding a few components therein. Thus, the clock generator could be expanded to a programmable clock generator.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: April 12, 2011
    Assignee: Industrial Technology Research Institute
    Inventors: Wei-Sheng Tseng, Hong-Yi Huang, Kuo-Hsing Cheng, Yuan-Hua Chu
  • Publication number: 20110057887
    Abstract: A touch panel including a substrate, a plurality of first sensing series, and a plurality of second sensing series is provided. The first sensing series and the second sensing series are disposed on the substrate. The first sensing series extend along a first direction and are electrically insulated from each other. Each of the first sensing series includes a plurality of first sensing pads and a plurality of first bridge portions connected between the first sensing pads. The second sensing series extend along a second direction and are electrically insulated from each other. Each of the second sensing series includes a plurality of second sensing pads and a plurality of second bridge portions connected between the second sensing pads. Each of the first bridge portions and one of the second bridge portions are intersected, and at least one of the second bridge portions has at least one electrostatic discharge tip.
    Type: Application
    Filed: December 2, 2009
    Publication date: March 10, 2011
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Yu-Chuan Lin, Sheng-Fa Liu, Jing-Tin Kuo, Hsin-Hung Lee, Wei-Jen Chang, Pei-Yu Chen, Yu-Mei Chiu, Mei-Sheng Ma, Kuo-Hsing Cheng
  • Publication number: 20100328293
    Abstract: A display apparatus comprises a shift register array. The shift register array comprises a plurality of shift registers. At least one shift register comprises a first transistor, a second transistor, a third transistor, and a driving circuit. The gate and the first electrode of the first transistor receive an input signal. The gate of the second transistor is coupled to the second electrode of the first transistor. The second electrode of the second transistor generates an output signal. The first electrode of the second transistor receives a clock signal. The third transistor is used to pull down a voltage level at the gate of the second transistor. The driving circuit determines an on/off status of the third transistor in response to the input signal and the output signal.
    Type: Application
    Filed: September 1, 2010
    Publication date: December 30, 2010
    Applicant: AU OPTRONICS CORP.
    Inventors: Chih Yuan Chien, Yu Ju Kuo, Ming Sheng Lai, Kuo Hsing Cheng
  • Publication number: 20100320009
    Abstract: A touch panel includes a substrate, a touch-sensing circuit, a plurality of sensing signal transmission wires, a capacitance compensation conductor, and a sensing signal readout circuit. The touch-sensing circuit is disposed on the substrate. The sensing signal transmission wires are disposed on the substrate and electrically connected to the touch-sensing circuit. The capacitance compensation conductor is disposed over the sensing signal transmission wires. Capacitance of each sensing signal transmission wire is C1, and coupling capacitance between each sensing signal transmission wire and the capacitance compensation conductor is C2. The sensing signal readout circuit is electrically connected to the sensing signal transmission wires. In each sensing signal transmission wire, variation of summation of C1 and C2 is less than a readout resolution of the sensing signal readout circuit.
    Type: Application
    Filed: November 24, 2009
    Publication date: December 23, 2010
    Applicant: Au Optronics Corporation
    Inventors: Jing-Tin Kuo, Pei-Yu Chen, Yu-Chuan Lin, Wei-Jen Chang, Kuo-Hsing Cheng
  • Patent number: 7848477
    Abstract: A shift register including shift register units substantially cascaded is disclosed. Each shift register unit is controlled by first and second clock signals opposite to each other for generating an output signal. Each shift register unit includes first and second switch devices and first and second devices. The first switch device provides the output signal through an output node. The first driving device drives the first switch device according to a first input signal to activate the output signal. The second driving device provides a first voltage signal, according to the first clock signal, to drive the first switch device and de-activate the output signal. When the first switch device de-activates the output signal, the second switch device provides the second voltage signal to the output node according to the second clock signal. A level of the first voltage signal is lower than a level of the second voltage signal.
    Type: Grant
    Filed: March 19, 2009
    Date of Patent: December 7, 2010
    Assignee: Au Optronics Corp.
    Inventors: Kuo-Hsing Cheng, Wai-Pan Wu, Kuo-Hsien Lee, Chun-Huai Li
  • Patent number: 7847778
    Abstract: A gate driving circuit for driving plural scan lines of a liquid crystal display includes N driving circuit units and a control unit. Each of the N driving circuit units sequentially outputs a driving signal to drive a corresponding scan line of the scan lines. The control unit outputs a positive-phase and an opposite-phase clock signal to control the N driving circuit units. After an Nth driving circuit unit of the N driving circuit units outputs the driving signal, the control unit transmits a control signal to at least one of the N driving circuit units. A method for driving the foregoing gate driving circuit is also disclosed.
    Type: Grant
    Filed: June 6, 2007
    Date of Patent: December 7, 2010
    Assignee: AU Optronics Corporation
    Inventors: Chih-Yuan Chien, Yu-Ju Kuo, Wan-Jung Chen, Kuo-Hsing Cheng
  • Publication number: 20100290581
    Abstract: A shift register including shift register units controlled by first and second clock signals for generating an output signal. For each unit, in an active period, the first driving device drives the first switch device to activate the output signal, and the second driving device provides a voltage signal according to the first clock signal to drive the first switch device to de-activate the output signal. When the first switch device de-activates the output signal, the second switch device provides the voltage signal to serve as the output signal according to the second clock signal. In the active period, the voltage signal has a low level, and the first and second clock signals are set as alternating-current signals and are opposite to each other. In a blanking period, the voltage signal has a high level, and each of the first and second clock signals is set as a direct-current signal.
    Type: Application
    Filed: July 22, 2010
    Publication date: November 18, 2010
    Applicant: AU OPTRONICS CORP.
    Inventors: Kuo-Hsing Cheng, Yao-Jen Hsieh
  • Patent number: 7787585
    Abstract: A shift register including shift register units controlled by first and second clock signals for generating an output signal. For each unit, in an active period, the first driving device drives the first switch device to activate the output signal, and the second driving device provides a voltage signal according to the first clock signal to drive the first switch device to de-activate the output signal. When the first switch device de-activates the output signal, the second switch device provides the voltage signal to serve as the output signal according to the second clock signal. In the active period, the voltage signal has a low level, and the first and second clock signals are set as alternating-current signals and are opposite to each other. In a blanking period, the voltage signal has a high level, and each of the first and second clock signals is set as a direct-current signal.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: August 31, 2010
    Assignee: Au Optronics Corp.
    Inventors: Kuo-Hsing Cheng, Yao-Jen Hsieh
  • Publication number: 20100172461
    Abstract: A shift register including shift register units substantially cascaded is disclosed. Each shift register unit is controlled by first and second clock signals opposite to each other for generating an output signal. Each shift register unit includes first and second switch devices and first and second devices. The first switch device provides the output signal through an output node. The first driving device drives the first switch device according to a first input signal to activate the output signal. The second driving device provides a first voltage signal, according to the first clock signal, to drive the first switch device and de-activate the output signal. When the first switch device de-activates the output signal, the second switch device provides the second voltage signal to the output node according to the second clock signal. A level of the first voltage signal is lower than a level of the second voltage signal.
    Type: Application
    Filed: March 19, 2009
    Publication date: July 8, 2010
    Applicant: AU OPTRONICS CORP.
    Inventors: Kuo-Hsing Cheng, Wai-Pan Wu, Kuo-Hsien Lee, Chun-Huai Li
  • Publication number: 20100164562
    Abstract: A clock generator is illustrated. The clock generator mentioned above includes a multimodulus frequency divider and a delta-sigma modulator. The multimodulus frequency divider is archived by switching the phase thereof. The multimodulus frequency divider increases the operating frequency of the clock generator effectively, and has a characteristic with half period resolution for reducing the jitter of an output clock signal when its spectrum is spread. Besides, the delta-sigma modulator increases the accuracy of the triangle modulation and reduces error of quantization by adding a few components therein. Thus, the clock generator could be expanded to a programmable clock generator.
    Type: Application
    Filed: February 24, 2009
    Publication date: July 1, 2010
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Wei-Sheng Tseng, Hong-Yi Huang, Kuo-Hsing Cheng, Yuan-Hua Chu
  • Publication number: 20100134427
    Abstract: A display panel with multi-touch function includes a display area and a non-display area. The display area includes a data line, a gate line, a first sensing line, a second sensing line, and a sensing unit. The sensing unit electrically connects the first and second sensing lines according to a touch signal or electrically isolates the first sensing line from the second sensing line. The non-display area includes a gate driver, a first switch and a second switch. The first switch provides a path for charging the second sensing line according to a scan signal, and the second switch provides a path for discharging the second sensing line according to a reset signal.
    Type: Application
    Filed: April 16, 2009
    Publication date: June 3, 2010
    Inventors: Yu-Cheng Tsai, Chao-Chen Wang, Pang-Chiang Chia, Kuo-Hsing Cheng, Mei-Sheng Ma
  • Publication number: 20100123681
    Abstract: A touch panel and a touch display panel are provided. The touch panel includes a substrate on which a touch layer and a color filter layer are disposed. The touch layer includes touch electrodes, signal lines, and a shielding layer. Each signal line is electrically connected only to one touch electrode. The touch display panel includes an array substrate, a color filter substrate having a touch area and a non-touch area, and a liquid crystal layer. The color filter substrate includes touch electrodes, signal lines, color filter patterns, and a shielding layer which has transparent areas. The touch electrodes are disposed in the touch area and above the shielding layer. The signal lines are disposed above the shielding layer. Each signal line is connected only to one touch electrode. The color filter patterns are disposed above the touch electrode and correspond to the transparent areas of the shielding layer.
    Type: Application
    Filed: May 19, 2009
    Publication date: May 20, 2010
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Yuan-Chun Wu, Hsin-Hung Lee, Mei-Sheng Ma, Kuo-Hsing Cheng
  • Patent number: 7688300
    Abstract: A driving method of a pixel array is provided. The driving method is suitable for a pixel array comprising at least one pixel set in each pixel array, wherein at least one pixel set comprises a plurality of pixels. In the driving method, a voltage having substantially same phase is used to drive the pixel electrodes of the pixels in the same pixel set. In addition, voltages with phases substantially opposite to each other are used to drive the pixel electrodes of the pixels in two adjacent pixel sets. Furthermore, a single gate line is used to drive two adjacent pixels in two different pixel sets respectively. In addition, a single gate line is used to drive a first pixel in one of the pixel set and another pixel in an adjacent column of the first pixel, wherein a phase of the voltage of a pixel electrode of the first pixel and a phase of a voltage of a pixel electrode of the other pixel are substantially different.
    Type: Grant
    Filed: May 24, 2004
    Date of Patent: March 30, 2010
    Assignee: Au Optronics Corporation
    Inventor: Kuo-Hsing Cheng
  • Publication number: 20100045613
    Abstract: A touch panel including a substrate, at least one first sensing series and at least one second sensing series is provided. The first sensing series is disposed on the substrate and extends along a first direction. The first sensing series includes several first sensing pads and at least one first bridge line. The first bridge line connects two adjacent first sensing pads, and a material of the first bridge line differs from a material of the first sensing pads. The second sensing series is disposed on the substrate and extends along a second direction. The first direction is different from the second direction. The second sensing series includes several second sensing pads and at least one second bridge line. The second bridge line connects two adjacent second sensing pads.
    Type: Application
    Filed: December 22, 2008
    Publication date: February 25, 2010
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Yuan-Chun Wu, Hsin-Hung Lee, Mei-Sheng Ma, Kuo-Hsing Cheng, Yu-Feng Chien
  • Publication number: 20100007615
    Abstract: A repairable touch control device includes a substrate, a sensor circuit, and at least a repairing wiring. The substrate includes a sensor region, and a peripheral region. The sensor circuit, which includes sensor wirings, is disposed in the sensor region. The repairing wiring is disposed in the peripheral region for repairing the sensor wirings.
    Type: Application
    Filed: December 22, 2008
    Publication date: January 14, 2010
    Inventors: Yuan-Chun Wu, Hsin-Hung Lee, Mei-Sheng Ma, Kuo-Hsing Cheng, Yao-Jen Hsieh