Patents by Inventor Kuo-Hua Hsu

Kuo-Hua Hsu 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: 20120328070
    Abstract: A shift register circuit includes plural shift register stages for providing plural gate signals. Each shift register stage includes a pull-up unit, a pull-up control unit, an input unit, a first pull-down unit, a second pull-down unit, and a pull-down control unit. The pull-up control unit generates a first control signal according to a driving control voltage and a first clock. The pull-up unit pulls up a corresponding gate signal according to the first control signal. The input unit is utilized for inputting the gate signal of a preceding shift register stage to become the driving control voltage according to a second clock having a phase opposite to the first clock. The pull-down control unit generates a second control signal according to the driving control voltage. The first and second pull-down units pull down the corresponding gate signal and the first control signal respectively according to the second control signal.
    Type: Application
    Filed: September 6, 2012
    Publication date: December 27, 2012
    Applicant: AU Optronics Corp.
    Inventors: Chih-Ying Lin, Kun-Yueh Lin, Yu-Chung Yang, Kuo-Hua Hsu
  • Patent number: 8331524
    Abstract: A shift register circuit with waveform-shaping function includes plural shift register stages. Each shift register stage includes a first input unit, a pull-up unit, a pull-down circuit, a second input unit, a control unit and a waveform-shaping unit. The first input unit is utilized for outputting a first driving control voltage in response to a first gate signal. The pull-up unit pulls up a second gate signal in response to the first driving control voltage. The pull-down circuit is employed to pull down the first driving control voltage and the second gate signal. The second input unit is utilized for outputting a second driving control voltage in response to the first gate signal. The control unit provides a control signal in response to the second driving control voltage and an auxiliary signal. The waveform-shaping unit performs a waveform-shaping operation on the second gate signal in response to the control signal.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: December 11, 2012
    Assignee: AU Optronics Corp.
    Inventors: Kuo-Hua Hsu, Chun-Hsin Liu, Yung-Chih Chen, Chih-Ying Lin, Kuo-Chang Su, Yu-Chung Yang
  • Publication number: 20120300149
    Abstract: A liquid crystal display includes a liquid crystal panel, a source driving circuit, a timing controller, and a gate driving circuit. The source driving circuit converts frame data into a plurality of data voltages, and charges/discharges a first data line according to a data voltage of the plurality of data voltages. The gate driving circuit enables a gate line corresponding to the data voltage. The timing controller sequentially enables a plurality of switch enable lines corresponding to the gate line. A plurality of pixel switches are turned on according to the enabled gate line. A data line switch is turned on according to an enabled switch enable line. The data voltage charges/discharges a corresponding pixel through the turned-on data line switch and one of the turned-on pixel switches.
    Type: Application
    Filed: April 18, 2012
    Publication date: November 29, 2012
    Inventors: Kuo-Hua Hsu, Yung-Chih Chen, Kuo-Chang Su, Yu-Chung Yang
  • Patent number: 8284891
    Abstract: A shift register circuit includes plural shift register stages for providing plural gate signals. Each shift register stage includes a pull-up unit, a pull-up control unit, an input unit, a first pull-down unit, a second pull-down unit, and a pull-down control unit. The pull-up control unit generates a first control signal according to a driving control voltage and a first clock. The pull-up unit pulls up a corresponding gate signal according to the first control signal. The input unit is utilized for inputting the gate signal of a preceding shift register stage to become the driving control voltage according to a second clock having a phase opposite to the first clock. The pull-down control unit generates a second control signal according to the driving control voltage. The first and second pull-down units pull down the corresponding gate signal and the first control signal respectively according to the second control signal.
    Type: Grant
    Filed: May 10, 2012
    Date of Patent: October 9, 2012
    Assignee: AU Optronics Corp.
    Inventors: Chih-Ying Lin, Kun-Yueh Lin, Yu-Chung Yang, Kuo-Hua Hsu
  • Publication number: 20120235890
    Abstract: A shift register of an LCD device includes a plurality of shift register units coupled in series. Each shift register unit includes an input circuit and a pull-down circuit having symmetric structures which enable the LCD device to function in a forward-scan mode and a reverse-scan mode.
    Type: Application
    Filed: May 28, 2012
    Publication date: September 20, 2012
    Inventors: Kuo-Hua Hsu, Kun-Yueh Lin, Yu-Chung Yang, Kuo-Chang Su
  • Publication number: 20120219105
    Abstract: A shift register circuit includes plural shift register stages for providing plural gate signals. Each shift register stage includes a pull-up unit, a pull-up control unit, an input unit, a first pull-down unit, a second pull-down unit, and a pull-down control unit. The pull-up control unit generates a first control signal according to a driving control voltage and a first clock. The pull-up unit pulls up a corresponding gate signal according to the first control signal. The input unit is utilized for inputting the gate signal of a preceding shift register stage to become the driving control voltage according to a second clock having a phase opposite to the first clock. The pull-down control unit generates a second control signal according to the driving control voltage. The first and second pull-down units pull down the corresponding gate signal and the first control signal respectively according to the second control signal.
    Type: Application
    Filed: May 10, 2012
    Publication date: August 30, 2012
    Inventors: Chih-Ying Lin, Kun-Yueh Lin, Yu-Chung Yang, Kuo-Hua Hsu
  • Patent number: 8218713
    Abstract: A shift register of an LCD device includes a plurality of shift register units coupled in series. Each shift register unit includes an input circuit and a pull-down circuit having symmetric structures which enable the LCD device to function in a forward-scan mode and a reverse-scan mode.
    Type: Grant
    Filed: October 6, 2010
    Date of Patent: July 10, 2012
    Assignee: AU Optronics Corp.
    Inventors: Kuo-Hua Hsu, Kun-Yueh Lin, Yu-Chung Yang, Kuo-Chang Su
  • Publication number: 20120169581
    Abstract: A shift register includes a signal input unit for receiving and providing an input signal, a signal output unit for controlling whether outputting a clock signal according to the input signal provided by the signal input unit, and a plurality of stable modules. Each of the stable modules is electrically coupled to an output terminal of the signal input unit, an output terminal of the signal output unit, and a default potential. Each of the stable modules receives a corresponding operation signal and is enabled in a duty of the corresponding operation signal, such that both the output terminal of the signal input unit and the output terminal of the signal output unit are electrically coupled to the default potential when the input signal is disabled. Before one of the stable modules is disabled, another of the stable modules has already been enabled.
    Type: Application
    Filed: October 11, 2011
    Publication date: July 5, 2012
    Applicant: AU OPTRONICS CORP.
    Inventors: Kuo-Chang SU, Yung-Chih Chen, Kuo-Hua Hsu
  • Publication number: 20120170707
    Abstract: A shift register circuit includes plural shift register stages for providing plural gate signals. Each shift register stage includes an input unit and a pull-up unit. The pull-up unit is utilized for pulling up a gate signal according to a system clock and a driving control voltage. The input unit is employed for outputting the driving control voltage according to a control signal and an input signal. The input unit includes a switch device having a first transistor and a second transistor. The first transistor has a first end for receiving the input signal, a gate end for receiving the control signal, and a second end. The second transistor has a first end electrically connected to the second end of the first transistor, a gate end electrically connected to the first end of the first transistor, and a second end for outputting the driving control voltage.
    Type: Application
    Filed: July 20, 2011
    Publication date: July 5, 2012
    Inventors: Kuo-Hua Hsu, Yung-Chih Chen, Chun-Huan Chang
  • Publication number: 20120155604
    Abstract: A shift register circuit includes plural shift register stages for providing plural gate signals. The Nth shift register stage of the shift register stages includes an input unit, a pull-up unit and a pull-down unit. The input unit is put in use for outputting an Nth driving control voltage according to an (N?1)th gate signal and an (N?2)th driving control voltage which are generated respectively by the (N?1) th shift register stage and the (N?2) th shift register stage of the shift register stages. The pull-up unit pulls up an Nth gate signal according to the Nth driving control voltage and a system clock. The pull-down unit pulls down the Nth gate signal and the Nth driving control voltage according to an (N+2)th gate signal generated by the (N+2)th shift register stage of the shift register stages.
    Type: Application
    Filed: August 10, 2011
    Publication date: June 21, 2012
    Inventors: Yu-Chung Yang, Yung-Chih Chen, Kuo-Hua Hsu, Kuo-Chang Su
  • Patent number: 8204170
    Abstract: A shift register circuit includes plural shift register stages for providing plural gate signals. Each shift register stage includes a pull-up unit, a pull-up control unit, an input unit, a first pull-down unit, a second pull-down unit, and a pull-down control unit. The pull-up control unit generates a first control signal according to a driving control voltage and a first clock. The pull-up unit pulls up a corresponding gate signal according to the first control signal. The input unit is utilized for inputting the gate signal of a preceding shift register stage to become the driving control voltage according to a second clock having a phase opposite to the first clock. The pull-down control unit generates a second control signal according to the driving control voltage. The first and second pull-down units pull down the corresponding gate signal and the first control signal respectively according to the second control signal.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: June 19, 2012
    Assignee: AU Optronics Corp.
    Inventors: Chih-Ying Lin, Kun-Yueh Lin, Yu-Chung Yang, Kuo-Hua Hsu
  • Publication number: 20120140871
    Abstract: A shift register circuit includes plural shift register stages for providing plural gate signals. Each shift register stage includes an input unit, a pull-up unit, a pull-down unit, a control unit and an auxiliary pull-down unit. The input unit is put in use for outputting a driving control voltage according to at least one first input signal. The pull-up unit pulls up a corresponding gate signal according to the driving control voltage and a system clock. The pull-down unit pulls down the corresponding gate signal to a first power voltage according to a control signal. The control unit is utilized for generating the control signal according to the corresponding gate signal. The auxiliary pull-down unit pulls down the driving control voltage to a second power voltage according to a second input signal.
    Type: Application
    Filed: March 16, 2011
    Publication date: June 7, 2012
    Inventors: Yu-Chung Yang, Yung-Chih Chen, Kuo-Hua Hsu, Kuo-Chang Su
  • Publication number: 20120120035
    Abstract: A LCD panel with an improved pixel array configuration is provided. The LCD panel uses a column inversion driving method to drive the data lines so as to achieve a stable common voltage. Moreover, by cross-connecting the layout traces of the wiring zone in a specified manner, the gate pulses outputted from every two gate lines neighboring the sub-pixel are not overlapped with each other, so that the frame can be normally displayed.
    Type: Application
    Filed: August 8, 2011
    Publication date: May 17, 2012
    Applicant: AU OPTRONICS CORP.
    Inventors: Yu-Chung YANG, Kuo-Chang Su, Yung-Chih Chen, Kuo-Hua Hsu, Chih-Ying Lin, Kun-Yueh Lin
  • Publication number: 20120086627
    Abstract: A display device having bi-directional shift registers is disclosed. The display device includes a display panel which has N gate lines, a first set of dummy registers, a second set of dummy registers, a plurality of valid shift registers coupled between the two sets of dummy registers, and a first start pulse signal generator coupled to the first valid register for generating the first start pulse signal to the first valid register to enable the first gate line. The first valid register is coupled to the first set of dummy registers. The Nth valid register is coupled to the second set of dummy registers.
    Type: Application
    Filed: October 11, 2011
    Publication date: April 12, 2012
    Inventors: Yung-Chih Chen, Kuo-Hua Hsu, Kun-Yueh Lin, Yu-Chung Yang, Yu-Hsi Ho
  • Patent number: 8098792
    Abstract: A shift register circuit with waveform-shaping function includes plural shift register stages. Each shift register stage includes a first input unit, a pull-up unit, a pull-down circuit, a second input unit, a control unit and a waveform-shaping unit. The first input unit is utilized for outputting a first driving control voltage in response to a first gate signal. The pull-up unit pulls up a second gate signal in response to the first driving control voltage. The pull-down circuit is employed to pull down the first driving control voltage and the second gate signal. The second input unit is utilized for outputting a second driving control voltage in response to the first gate signal. The control unit provides a control signal in response to the second driving control voltage and an auxiliary signal. The waveform-shaping unit performs a waveform-shaping operation on the second gate signal in response to the control signal.
    Type: Grant
    Filed: May 31, 2010
    Date of Patent: January 17, 2012
    Assignee: AU Optronics Corp.
    Inventors: Kuo-Hua Hsu, Chun-Hsin Liu, Yung-Chih Chen, Chih-Ying Lin
  • Publication number: 20120008731
    Abstract: A shift register of an LCD device includes a plurality of shift register units coupled in series. Each shift register unit includes an input circuit and a pull-down circuit having symmetric structures which enable the LCD device to function in a forward-scan mode and a reverse-scan mode.
    Type: Application
    Filed: October 6, 2010
    Publication date: January 12, 2012
    Inventors: Kuo-Hua Hsu, Kun-Yueh Lin, Yu-Chung Yang, Kuo-Chang Su
  • Publication number: 20110285950
    Abstract: An active device array substrate includes a substrate, first scan lines, second scan lines, data lines, and pixels. The first and the second scan lines are alternately arranged along a first direction. The data lines are arranged in parallel along a second direction. The pixels are arranged to form first pixel rows and second pixel rows alternately arranged in the first direction. The first pixel row includes first and second pixels electrically connected to the first scan lines, the second scan lines, and the data line, respectively. The second pixel row includes third and fourth pixels electrically connected to the first scan lines, the second scan lines, and the data line, respectively. The pixels between two adjacent data lines are arranged in two columns. Among the pixels in the same column, the pixels in odd rows and in even rows are electrically connected to different data lines, respectively.
    Type: Application
    Filed: August 17, 2010
    Publication date: November 24, 2011
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Kuo-Chang Su, Kuo-Hua Hsu, Chun-Hsin Liu, Yung-Chih Chen
  • Publication number: 20110234577
    Abstract: A shift register comprises a plurality of stages. In one embodiment, each stage includes a first output, a second output, a pull-up circuit electrically coupled between a node and the second output, a pull-up control circuit electrically coupled to the node, a pull-down control circuit electrically coupled between the node and the first output, and a control circuit electrically coupled to the node and the first output.
    Type: Application
    Filed: March 24, 2010
    Publication date: September 29, 2011
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Yu-Chung Yang, Yung-Chih Chen, Chih-Ying Lin, Kuo-Hua Hsu
  • Publication number: 20110216877
    Abstract: A shift register circuit with waveform-shaping function includes plural shift register stages. Each shift register stage includes a first input unit, a pull-up unit, a pull-down circuit, a second input unit, a control unit and a waveform-shaping unit. The first input unit is utilized for outputting a first driving control voltage in response to a first gate signal. The pull-up unit pulls up a second gate signal in response to the first driving control voltage. The pull-down circuit is employed to pull down the first driving control voltage and the second gate signal. The second input unit is utilized for outputting a second driving control voltage in response to the first gate signal. The control unit provides a control signal in response to the second driving control voltage and an auxiliary signal. The waveform-shaping unit performs a waveform-shaping operation on the second gate signal in response to the control signal.
    Type: Application
    Filed: May 19, 2011
    Publication date: September 8, 2011
    Inventors: Kuo-Hua Hsu, Chun-Hsin Liu, Yung-Chih Chen, Chih-Ying Lin, Kuo-Chang Su, Yu-Chung Yang
  • Publication number: 20110158377
    Abstract: A shift register circuit with waveform-shaping function includes plural shift register stages. Each shift register stage includes a first input unit, a pull-up unit, a pull-down circuit, a second input unit, a control unit and a waveform-shaping unit. The first input unit is utilized for outputting a first driving control voltage in response to a first gate signal. The pull-up unit pulls up a second gate signal in response to the first driving control voltage. The pull-down circuit is employed to pull down the first driving control voltage and the second gate signal. The second input unit is utilized for outputting a second driving control voltage in response to the first gate signal. The control unit provides a control signal in response to the second driving control voltage and an auxiliary signal. The waveform-shaping unit performs a waveform-shaping operation on the second gate signal in response to the control signal.
    Type: Application
    Filed: May 31, 2010
    Publication date: June 30, 2011
    Inventors: Kuo-Hua Hsu, Chun-Hsin Liu, Yung-Chih Chen, Chih-Ying Lin