Patents by Inventor Chun-Huan Chang

Chun-Huan Chang 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: 11955191
    Abstract: A memory device and a method of operating a memory device are disclosed. In one aspect, the memory device includes a plurality of non-volatile memory cells, each of the plurality of non-volatile memory cells is operatively coupled to a word line, a gate control line, and a bit line. Each of the plurality of non-volatile memory cells comprises a first transistor, a second transistor, a first diode-connected transistor, and a capacitor. The first transistor, second transistor, first diode-connected transistor are coupled in series, with the capacitor having a first terminal connected to a common node between the first diode-connected transistor and the second transistor.
    Type: Grant
    Filed: June 2, 2023
    Date of Patent: April 9, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Perng-Fei Yuh, Tung-Cheng Chang, Gu-Huan Li, Chia-En Huang, Chun-Ying Lee, Yih Wang
  • Publication number: 20240096431
    Abstract: A memory circuit includes a non-volatile memory cell, a comparator and a detection circuit. The comparator is coupled to the non-volatile memory cell, and configured to generate a first output signal. The comparator including a first input terminal and a first output terminal. The first input terminal is coupled to the non-volatile memory cell by a first node, and configured to receive a first voltage. The first output terminal is configured to output the first output signal. The detection circuit is coupled to the comparator and the non-volatile memory cell. The detection circuit is configured to latch the first output signal and disrupt a current path between at least the non-volatile memory cell and the comparator. The detection circuit includes a first inverter coupled to the first output terminal of the comparator and configured to generate an inverted first output signal.
    Type: Application
    Filed: November 29, 2023
    Publication date: March 21, 2024
    Inventors: Chun-Hao CHANG, Gu-Huan LI, Shao-Yu CHOU
  • Patent number: 9437130
    Abstract: A display panel includes a display area, a shift register circuit, a first start signal line, and a second start signal line. The shift register circuit is electrically coupled to the display area through a plurality of signal output lines. The first start signal line and the second start signal line are electrically coupled to the shift register circuit. The first start signal line and the second start signal line are both arranged without crossing the signal output lines.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: September 6, 2016
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Wei-Li Lin, Yi-Suei Liao, Chun-Huan Chang
  • Patent number: 9287001
    Abstract: A shift register circuit includes a first pull-down control circuit, a first pull-down circuit electrically connecting to the first pull-down control circuit, a first inversed pulse signal coupling circuit outputting a first inversed pulse signal, a first pull-up circuit outputting a first gate control signal, and a first main pull-down circuit electrically connecting to the first pull-up circuit. The first pull-up circuit receives a first driving signal and a first pulse signal to output the first gate control signal. The first inversed pulse signal coupling circuit duly outputs the first inversed pulse signal to compensate a surge occurring in the first driving signal.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: March 15, 2016
    Assignee: AU POTRONICS CORP.
    Inventors: Wei-Li Lin, Chun-Huan Chang, Che-Wei Tung, Shu-Fang Hou
  • Patent number: 9087492
    Abstract: A method for use in a display panel is disclosed. The method includes providing M bus lines in the bus area for receiving a plurality of clock signals, M being a positive integer greater than 3; providing a plurality of signal lines to separately provide the clock signals from the M bus line to the circuit area, the circuit area configured to provide the plurality of sequential gate line signals in response to the clock signals, the plurality of signal lines including a plurality of adjacent signal-line pairs, each adjacent signal-line pair having a resistance difference, said signal lines including a maximum resistance value and a minimum resistance value, and wherein the M bus lines are arranged such that the resistance difference in any one of the adjacent signal-line pairs is smaller than a value difference between the maximum resistance value and the minimum resistance value.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: July 21, 2015
    Assignee: AU Optronics Corporation
    Inventors: Chun Huan Chang, Chun-Hsin Liu, Kun-Yueh Lin, Ya-Ting Lin
  • Publication number: 20150194090
    Abstract: A display panel includes a display area, a shift register circuit, a first start signal line, and a second start signal line. The shift register circuit is electrically coupled to the display area through a plurality of signal output lines. The first start signal line and the second start signal line are electrically coupled to the shift register circuit. The first start signal line and the second start signal line are both arranged without crossing the signal output lines.
    Type: Application
    Filed: July 7, 2014
    Publication date: July 9, 2015
    Inventors: Wei-Li LIN, Yi-Suei LIAO, Chun-Huan CHANG
  • Publication number: 20140369457
    Abstract: A shift register circuit includes a first pull-down control circuit, a first pull-down circuit electrically connecting to the first pull-down control circuit, a first inversed pulse signal coupling circuit outputting a first inversed pulse signal, a first pull-up circuit outputting a first gate control signal, and a first main pull-down circuit electrically connecting to the first pull-up circuit. The first pull-up circuit receives a first driving signal and a first pulse signal to output the first gate control signal. The first inversed pulse signal coupling circuit duly outputs the first inversed pulse signal to compensate a surge occurring in the first driving signal.
    Type: Application
    Filed: October 18, 2013
    Publication date: December 18, 2014
    Applicant: AU OPTRONICS CORP.
    Inventors: Wei-Li LIN, Chun-Huan CHANG, Che-Wei TUNG, Shu-Fang HOU
  • Patent number: 8890785
    Abstract: A display panel and its gate driving circuit are provided. The gate driving circuit includes a plurality of shift registers. Each of the shift registers includes a first scan signal generator for generating a first scan signal, a second scan signal generator for generating a second scan signal, a first control unit for generating a first control signal, and a second control unit for generating a second control signal. Here, the first control signal and the second control signal are shared by the first scan signal generator and the second scan signal generator. Based on the above, the abatement of signal intensity of the first scan signal and the second scan signal caused by circuit sharing can be precluded, and a chip area occupied by each of the shift registers can be reduced.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: November 18, 2014
    Assignee: Au Optronics Corporation
    Inventors: Kun-Yueh Lin, Chun-Hsin Liu, Chun-Huan Chang, Ya-Ting Lin
  • Patent number: 8711132
    Abstract: An exemplary gate driving circuit is adapted for driving a display panel including multiple pixels and includes a first gate driving unit string and a second gate driving unit string. The first gate driving unit string includes multiple cascade-connected first gate driving units and receives a start pulse. The first gate driving units are for generating output pulses to drive the pixels. The second gate driving unit string includes multiple cascade-connected second gate driving units and receives the start pulse. The second gate driving units are for generating output pulses to drive the pixels. The output pulse generated from one of the second gate driving units is provided to one of first gate driving units to determine whether to disable the output pulse of the first gate driving unit which receives the output pulse generated from the second gate driving units.
    Type: Grant
    Filed: February 1, 2012
    Date of Patent: April 29, 2014
    Assignee: Au Optronics Corp.
    Inventors: Chun-Huan Chang, Wan-Jung Chen, Yu-Chung Yang
  • Patent number: 8687761
    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: Grant
    Filed: June 10, 2013
    Date of Patent: April 1, 2014
    Assignee: AU Optronics Corp.
    Inventors: Kuo-Hua Hsu, Yung-Chih Chen, Chun-Huan Chang
  • Publication number: 20140063398
    Abstract: A display panel is provided. A substrate includes a non-display area and a display area including a center area, a first area, and a second area. First data lines are disposed in the first area and electrically connected to the first source driving circuit. Second data lines are disposed in the second area and electrically connected to the second source driving circuit. At least one first repairing line is electrically connected to the first source driving circuit, passes through the center area of the display area and overlaps with the first data lines, wherein the first repairing line is electrically insulated from the first data lines. At least one second repairing line is electrically connected to the second source driving circuit, passes through the center area of the display area and overlaps with the second data lines, wherein the second repairing line is electrically insulated from the second data lines.
    Type: Application
    Filed: March 15, 2013
    Publication date: March 6, 2014
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Chun-Huan Chang, Chun-Hsin Liu, Kun-Yueh Lin, Ya-Ting Lin, Shu-Fang Hou, Che-Wei Tung, Wei-Li Lin
  • Patent number: 8581655
    Abstract: A clock signal supplying method for shift registers includes following steps: receiving a clock signal; and transmitting the clock signal to two first stage signal transmission paths simultaneously, the first stage signal transmission paths determined by a first control signal whether to be conducted, and further conducted at different time.
    Type: Grant
    Filed: October 11, 2011
    Date of Patent: November 12, 2013
    Assignee: Au Optronics Corp.
    Inventors: Yung-Chih Chen, Kuo-Chang Su, Chun-Huan Chang, Yu-Chung Yang
  • Publication number: 20130278567
    Abstract: A method for use in a display panel is disclosed. The method includes providing M bus lines in the bus area for receiving a plurality of clock signals, M being a positive integer greater than 3; providing a plurality of signal lines to separately provide the clock signals from the M bus line to the circuit area, the circuit area configured to provide the plurality of sequential gate line signals in response to the clock signals, the plurality of signal lines including a plurality of adjacent signal-line pairs, each adjacent signal-line pair having a resistance difference, said signal lines including a maximum resistance value and a minimum resistance value, and wherein the M bus lines are arranged such that the resistance difference in any one of the adjacent signal-line pairs is smaller than a value difference between the maximum resistance value and the minimum resistance value.
    Type: Application
    Filed: April 23, 2012
    Publication date: October 24, 2013
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Chun Huan CHANG, Chun-Hsin LIU, Kun-Yueh LIN, Ya-Ting LIN
  • Publication number: 20130272486
    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: June 10, 2013
    Publication date: October 17, 2013
    Inventors: Kuo-Hua Hsu, Yung-Chih Chen, Chun-Huan Chang
  • Patent number: 8494108
    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: Grant
    Filed: July 20, 2011
    Date of Patent: July 23, 2013
    Assignee: AU Optronics Corp.
    Inventors: Kuo-Hua Hsu, Yung-Chih Chen, Chun-Huan Chang
  • Patent number: 8467027
    Abstract: A display panel including plural wiring sets is provided. Each of the wiring sets includes plural wires extending substantially along a straight direction. Each of the wiring sets has a first part and a second part respectively located at two opposite sides of a sealant. The first part is located between the sealant and an active region of the display panel, and a shortest distance of two adjacent wire segments of the first part is larger than a shortest distance of two adjacent wire segments of the second part. In addition, the shortest distance of two adjacent wire segments of the first part may be limited from about 15 ?m to about 35 ?m. The configuration of wiring set can reduce crosstalk of electric field between two adjacent wires to prevent light leakage and improve display quality.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: June 18, 2013
    Assignee: Au Optronics Corporation
    Inventors: Chun-Huan Chang, Chien-Hao Fu, Chun-Kai Chang
  • Publication number: 20130100006
    Abstract: A display panel and its gate driving circuit are provided. The gate driving circuit includes a plurality of shift registers. Each of the shift registers includes a first scan signal generator for generating a first scan signal, a second scan signal generator for generating a second scan signal, a first control unit for generating a first control signal, and a second control unit for generating a second control signal. Here, the first control signal and the second control signal are shared by the first scan signal generator and the second scan signal generator. Based on the above, the abatement of signal intensity of the first scan signal and the second scan signal caused by circuit sharing can be precluded, and a chip area occupied by each of the shift registers can be reduced.
    Type: Application
    Filed: April 18, 2012
    Publication date: April 25, 2013
    Applicant: Au Optronics Corporation
    Inventors: Kun-Yueh Lin, Chun-Hsin Liu, Chun-Huan Chang, Ya-Ting Lin
  • Patent number: 8421981
    Abstract: A display panel having a display region and a sealant region is provided. The display panel includes a first substrate, a second substrate, a sealant and a display medium. The sealant is disposed between the first and second substrates and within the sealant region. The display medium is disposed between the first and second substrates and within the display region. The second substrate includes pixel units and wires electrically connected to the pixel units. The pixel units are disposed within the display region, the wires extend to the sealant region from the display region, and at least a portion of the wires in the sealant region has slots. In particular, each of the slots has a side edge adjacent to the edge of the wire which the slot is disposed therein, and the distances from the side edge to the edge of the wire are not equal.
    Type: Grant
    Filed: February 9, 2009
    Date of Patent: April 16, 2013
    Assignee: Au Optronics Corporation
    Inventors: Pai-Hung Hsu, Chien-Hao Fu, Chun-Huan Chang, Ming-Chin Lee, Min-Feng Chiang
  • Publication number: 20120320021
    Abstract: An exemplary gate driving circuit is adapted for driving a display panel including multiple pixels and includes a first gate driving unit string and a second gate driving unit string. The first gate driving unit string includes multiple cascade-connected first gate driving units and receives a start pulse. The first gate driving units are for generating output pulses to drive the pixels. The second gate driving unit string includes multiple cascade-connected second gate driving units and receives the start pulse. The second gate driving units are for generating output pulses to drive the pixels. The output pulse generated from one of the second gate driving units is provided to one of first gate driving units to determine whether to disable the output pulse of the first gate driving unit which receives the output pulse generated from the second gate driving units.
    Type: Application
    Filed: February 1, 2012
    Publication date: December 20, 2012
    Applicant: AU OPTRONICS CORP.
    Inventors: Chun-Huan Chang, Wan-Jung Chen, Yu-Chung Yang
  • Patent number: 8325127
    Abstract: The present invention relates to a shift register and GOA architecture of the same in a display panel comprising a substrate and a plurality of pixels spatially formed on the substrate defining a number of pixel rows, each pixel row having a height of H. The shift register has the plurality of shift register stages disposed spatially and sequentially on the substrate in such a way that the layout of each shift register stage has a height of (j*H), j being an integer greater than one. Each shift register stages is configured to generate j scanning signals for driving j neighboring pixel rows, respectively.
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: December 4, 2012
    Assignee: AU Optronics Corporation
    Inventors: Chun-Huan Chang, Kuo-Chang Su, Yung-Chih Chen, Chun-Hsin Liu