Patents by Inventor Tsao-Wen Lu

Tsao-Wen Lu 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).

  • Patent number: 9847138
    Abstract: A shift register includes shift register units, in which at least one shift register unit is coupled to a forestage shift register unit and a post-stage shift register unit, where the at least one shift register unit includes a signal input circuit, a signal output circuit, a pull down circuit and a switching circuit. The signal input circuit electrically coupled to the forestage shift register unit can receive a logic signal from the forestage shift register. The signal output circuit is electrically coupled to the signal input circuit via a control signal terminal and is electrically coupled to the post-stage shift register unit. The signal output circuit can receive a first clock signal. The pull down circuit is electrically coupled to or electrically isolated from the control signal terminal through the switching circuit.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: December 19, 2017
    Assignee: AU OPTRONICS CORP.
    Inventors: Pei-Hua Chen, Yu-Hsin Ting, Chung-Lin Fu, Tsao-Wen Lu, Nan-Ying Lin, Wei-Chun Hsu
  • Publication number: 20160189798
    Abstract: A shift register includes shift register units, in which at least one shift register unit is coupled to a forestage shift register unit and a post-stage shift register unit, where the at least one shift register unit includes a signal input circuit, a signal output circuit, a pull down circuit and a switching circuit. The signal input circuit electrically coupled to the forestage shift register unit can receive a logic signal from the forestage shift register. The signal output circuit is electrically coupled to the signal input circuit via a control signal terminal and is electrically coupled to the post-stage shift register unit. The signal output circuit can receive a first clock signal. The pull down circuit is electrically coupled to or electrically isolated from the control signal terminal through the switching circuit.
    Type: Application
    Filed: March 4, 2016
    Publication date: June 30, 2016
    Inventors: Pei-Hua CHEN, Yu-Hsin Ting, Chung-Lin Fu, Tsao-Wen Lu, Nan-Ying Lin, Wei-Chun Hsu
  • Patent number: 9318064
    Abstract: A shift register includes shift register units, in which at least one shift register unit is coupled to a forestage shift register unit and a post-stage shift register unit, where the at least one shift register unit includes a signal input circuit, a signal output circuit, a pull down circuit and a switching circuit. The signal input circuit electrically coupled to the forestage shift register unit can receive a logic signal from the forestage shift register. The signal output circuit is electrically coupled to the signal input circuit via a control signal terminal and is electrically coupled to the post-stage shift register unit. The signal output to circuit can receive a first clock signal. The pull down circuit is electrically coupled to or electrically isolated from the control signal terminal through the switching circuit.
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: April 19, 2016
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Pei-Hua Chen, Yu-Hsin Ting, Chung-Lin Fu, Tsao-Wen Lu, Nan-Ying Lin, Wei-Chun Hsu
  • Patent number: 8766899
    Abstract: An active liquid crystal display panel includes a pixel array, a gate driving circuit, a data driving circuit, and an analog buffer. The gate driving circuit is used for driving M first scan lines where M is a natural number. The analog buffer is coupled to the gate driving circuit and includes M buffer circuits and a regulator. Each buffer circuit drives a corresponding second scan line according to an output signal of a corresponding first scan line of the M first scan lines, and the regulator is used for maintaining at least one reference voltage supplied to the M buffer circuits.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: July 1, 2014
    Assignee: AU Optronics Corp.
    Inventors: Wei-Chun Hsu, Yu-Hsin Ting, Chung-Lin Fu, Tsao-Wen Lu, Nan-Ying Lin, Pei-Hua Chen
  • Publication number: 20130141315
    Abstract: A shift register includes shift register units, in which at least one shift register unit is coupled to a forestage shift register unit and a post-stage shift register unit, where the at least one shift register unit includes a signal input circuit, a signal output circuit, a pull down circuit and a switching circuit. The signal input circuit electrically coupled to the forestage shift register unit can receive a logic signal from the forestage shift register. The signal output circuit is electrically coupled to the signal input circuit via a control signal terminal and is electrically coupled to the post-stage shift register unit. The signal output to circuit can receive a first clock signal. The pull down circuit is electrically coupled to or electrically isolated from the control signal terminal through the switching circuit.
    Type: Application
    Filed: October 26, 2012
    Publication date: June 6, 2013
    Applicant: AU Optronics Corporation
    Inventors: Pei-Hua Chen, Yu-Hsin Ting, Chung-Lin Fu, Tsao-Wen Lu, Nan-Ying Lin, Wei-Chun Hsu
  • Publication number: 20130141877
    Abstract: A fan-out circuit electrically connected to a driver and a plurality of signal lines is provided. The fan-out circuit includes a first fan-out trace including a first and a second conductive line, and a second fan-out trace including a third and a fourth conductive line. The second conductive line is connected between the first conductive line and one of the signal lines. The length of the second and fourth conductive lines are L1? and L2? respectively. An obtuse included angle is formed between the first and second conductive lines. The width of the first and third conductive lines is W1. The fourth conductive line is electrically connected to the third conductive line and another one of the signal lines. The obtuse included angle is formed between the third and fourth conductive lines. The width of the second and fourth conductive lines is W2, and (W2/L1?)>(W2/L2?) and L1?<L2?.
    Type: Application
    Filed: April 12, 2012
    Publication date: June 6, 2013
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Chee-Wai Lau, Tsao-Wen Lu, Chien-Ju Lin, Chien-Hao Fu, Tsang-Hong Wang
  • Patent number: 8305372
    Abstract: A display and a method for eliminating a residual image thereof are provided. The method includes detecting a status of an electric power supplied by a power supply unit of the display when the display is in the power on state; and coupling the electric power to a reference voltage when the electric power is suddenly terminated so as to accelerately discharge charges remaining on the electric power.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: November 6, 2012
    Assignee: Au Optronics Corporation
    Inventors: Yu-Hsin Ting, Tsao-Wen Lu
  • Publication number: 20120146962
    Abstract: An active liquid crystal display panel includes a pixel array, a gate driving circuit, a data driving circuit, and an analog buffer. The gate driving circuit is used for driving M first scan lines where M is a natural number. The analog buffer is coupled to the gate driving circuit and includes M buffer circuits and a regulator. Each buffer circuit drives a corresponding second scan line according to an output signal of a corresponding first scan line of the M first scan lines, and the regulator is used for maintaining at least one reference voltage supplied to the M buffer circuits.
    Type: Application
    Filed: April 14, 2011
    Publication date: June 14, 2012
    Inventors: Wei-Chun Hsu, Yu-Hsin Ting, Chung-Lin Fu, Tsao-Wen Lu, Nan-Ying Lin, Pei-Hua Chen
  • Publication number: 20120104402
    Abstract: In one aspect of the invention, an analog buffer circuit includes a p-channel field effect transistor (PTFT) and an n-channel field effect transistor (NTFT). Each of the PTFT and NTFT has a source region and a drain region defining a channel region therebetween, formed on a substrate such that the drain regions of the PTFT and the NTFT are in substantial contact with each other, a gate layer formed over and insulated from the corresponding channel region, a source electrode insulated from the gate layer and electrically connected to the corresponding source region, and a common drain electrode insulated from the gate layer and the source electrode, and is electrically connected to the drain regions of both the PTFT and the NTFT through a via defined over the depletion region.
    Type: Application
    Filed: November 3, 2010
    Publication date: May 3, 2012
    Inventors: Pei-Hua Chen, Yu-Hsin Ting, Chung-Lin Fu, Tsao-Wen Lu, Nan-Ying Lin, Wei-Chun Hsu
  • Publication number: 20100277462
    Abstract: A display and a method for eliminating a residual image thereof are provided. The method includes detecting a status of an electric power supplied by a power supply unit of the display when the display is in the power on state; and coupling the electric power to a reference voltage when the electric power is suddenly terminated so as to accelerately discharge charges remaining on the electric power.
    Type: Application
    Filed: June 23, 2009
    Publication date: November 4, 2010
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Yu-Hsin Ting, Tsao-Wen Lu