Patents by Inventor Huang-Chin Tang

Huang-Chin Tang 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: 11024215
    Abstract: A dual-gate display panel, a control circuit, and a display device are provided. The display device includes the dual-gate display panel and the control circuit. The display panel includes a first subpixel, a second subpixel, a third subpixel, and a fourth subpixel, which are sequentially arranged along a first direction. The first subpixel and the third subpixel are electrically connected to a first source line. The second subpixel and the fourth subpixel are electrically connected to a second source line.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: June 1, 2021
    Assignee: NOVATEK MICROELECTRONICS CORP.
    Inventors: Hung-Hsiang Chen, Tso-Hua Chien, Huang-Chin Tang
  • Patent number: 10990219
    Abstract: An integrated circuit and a touch display apparatus are provided. The integrated circuit is configured to drive a touch display panel. The integrated circuit includes a regulator. An output terminal of the regulator is employed as a first node to output a common voltage, wherein the common voltage is configured to be provided to at least one common electrode of the touch display panel. An input terminal of the regulator is coupled to a second node different from the first node to receive a feedback voltage.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: April 27, 2021
    Assignee: Novatek Microelectronics Corp.
    Inventors: Huan-Teng Cheng, Wen-Yi Hsieh, Huang-Chin Tang
  • Patent number: 10984697
    Abstract: This disclosure relates to techniques for a driving apparatus including a reordering circuit and a source driving circuit. The reordering circuit can be configured to reorder a plurality of sub-pixel data of an input data string to generate a reordered data string so as to reduce a color switching number associated with a target data line. The source driving circuit can be coupled to the reordering circuit to receive the reordered data string. The source driving circuit can be configured to drive the target data line of a display panel according to the reordered data string.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: April 20, 2021
    Assignee: Novatek Microelectronics Corp.
    Inventors: Tso-Hua Chien, Hung-Hsiang Chen, Huang-Chin Tang
  • Publication number: 20210109639
    Abstract: A single-chip device for driving a panel including fingerprint sensing pixels, display pixels and touch sensors, electronic module therefor, and electronic apparatus are provided. The single-chip device comprises a main body, a first group of pads and a second group of pads disposed in the main body. The first group of pads comprise first pads for driving the fingerprint sensing pixels, and are disposed on at least one of a left portion and a right portion of the main body with respect to an axis. The second group of pads comprise second pads for driving the display pixels and the touch sensors, and are disposed on at least another one of the left portion and the right portion, wherein at least one group of the first group of pads and the second group of pads are disposed only on the one of the left portion and the right portion.
    Type: Application
    Filed: September 30, 2020
    Publication date: April 15, 2021
    Inventors: TZU-WEN HSIEH, WEILUN SHIH, TING-HSUAN HUNG, HUANG-CHIN TANG
  • Publication number: 20210109638
    Abstract: A single-chip device for driving a panel including fingerprint sensing pixels, display pixels and touch sensors, electronic module therefor, and electronic apparatus including the single-chip device are provided. The single-chip device comprises a main body, a first group of pads and a second group of pads disposed in the main body. The main body has a left portion and a right portion with respect to an axis. The first group of pads comprise a plurality of first pads for driving the fingerprint sensing pixels, are disposed on both the left portion and the right portion and configured to be coupled to the fingerprint sensing pixels. The second group of pads comprise a plurality of second pads for driving the display pixels and the touch sensors, are disposed on both the left portion and the right portion and configured to be coupled to the panel.
    Type: Application
    Filed: September 30, 2020
    Publication date: April 15, 2021
    Inventors: TZU-WEN HSIEH, WEILUN SHIH, TING-HSUAN HUNG, HUANG-CHIN TANG
  • Patent number: 10957236
    Abstract: The present invention discloses a driving method for a source driver, for driving a source line of a display panel. The driving method includes the steps of: driving the source line with a first voltage or a second voltage smaller than the first voltage in a first driving cycle; driving the source line with the first voltage in a second driving cycle next to the first driving cycle when the source line is driven with the first voltage in the first driving cycle; and driving the source line with an overdrive voltage in the second driving cycle when the source line is driven with the second voltage in the first driving cycle. The first voltage is a normal high voltage of the display panel, and the overdrive voltage is greater than the normal high voltage.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: March 23, 2021
    Assignee: NOVATEK Microelectronics Corp.
    Inventors: Yen-Tao Liao, Hung-Hsiang Chen, Jen-Ta Yang, Yi-Wei Lin, Huang-Chin Tang
  • Publication number: 20210073504
    Abstract: A chip, an electronic device, a panel and an operation method thereof are provided. The chip can control the panel to perform fingerprint sensing. Fingerprint sensing pixels of the panel are divided into a plurality of fingerprint zones along a column direction. The chip includes a selecting circuit and a control circuit. The selecting circuit obtains information about a selected fingerprint zone among the fingerprint zones. The control circuit provides multiple control signals for controlling the panel to perform fingerprint sensing. The control signals include multiple start pulse signals. The start pulse signals collectively indicate the selected fingerprint zone. The number of the fingerprint zones is greater than the number of the start pulse signals.
    Type: Application
    Filed: August 28, 2020
    Publication date: March 11, 2021
    Applicant: Novatek Microelectronics Corp.
    Inventors: Wei-Lun Shih, Wu-Wei Lin, Huang-Chin Tang, Ting-Hsuan Hung
  • Publication number: 20210056281
    Abstract: An electronic circuit for driving a panel including touch sensors and fingerprint sensors is provided. The electronic circuit includes a touch sensing circuit, a fingerprint sensing circuit and a display driving circuit. The touch sensing circuit senses a touch of a finger and determines a first area corresponding to the touch on the panel. The fingerprint sensing circuit senses a fingerprint image of the finger corresponding to the first area of the panel. The display driving circuit drives pixels over the panel with respective first gray levels during a first phase, and drives pixels of the first area with respective second gray levels and pixels of a second area outside the first area with respective third gray levels during a second phase. The respective second gray levels are higher than the respective first gray levels, and the respective third gray levels are lower than the respective second gray levels.
    Type: Application
    Filed: July 6, 2020
    Publication date: February 25, 2021
    Inventors: Wei-Lun Shih, Tzu-Wen Hsieh, Huan-Teng Cheng, Huang-Chin Tang, Yueh-Teng Mai, Shi-Hao Huang, Jung-Chung Lee
  • Publication number: 20210056333
    Abstract: A control circuit configured to control a display panel includes a display driver circuit, a touch sensing circuit and a fingerprint sensing circuit. The touch sensing circuit, coupled to the display driver circuit and the fingerprint sensing circuit, is configured to detect a finger touch on the display panel, determine a position of the display panel on which the finger touch is detected, and send information associated with the position to the fingerprint sensing circuit. The fingerprint sensing circuit is configured to perform fingerprint sensing on at least one zone corresponding to the position and receive fingerprint image signals from the at least one zone correspondingly.
    Type: Application
    Filed: April 16, 2020
    Publication date: February 25, 2021
    Inventors: Huan-Teng Cheng, Wei-Lun Shih, Huang-Chin Tang
  • Publication number: 20210056280
    Abstract: A control circuit configured to control a display panel under normal display includes a display driver circuit, a touch sensing circuit and a fingerprint sensing circuit. The touch sensing circuit, coupled to the display driver circuit, is configured to detect a predetermined touch gesture on the display panel and determine a position of the display panel on which the predetermined touch gesture is detected. The fingerprint sensing circuit, coupled to the touch sensing circuit, is configured to perform fingerprint sensing on at least one zone corresponding to the position when the predetermined touch gesture is detected, in order to perform a specific function.
    Type: Application
    Filed: May 3, 2020
    Publication date: February 25, 2021
    Inventors: Huan-Teng Cheng, Wei-Lun Shih, Huang-Chin Tang
  • Publication number: 20210034189
    Abstract: An electronic circuit is adapted to drive a display panel having touch sensors and fingerprint sensors. The electronic circuit includes a first circuit, a second circuit, a first switch circuit and a control circuit. The first circuit processes touch sensing signals from the touch sensors. The second circuit processes fingerprint sensing signals corresponding to a fingerprint from the fingerprint sensors. The first switch circuit includes a plurality of first terminals coupled to the first circuit and the second circuit and a plurality of second terminals configurable to be coupled to the display panel. The first switch circuit couples a part of the first terminals to the second terminals in a first time interval and couples the other part of the first terminals to the second terminals in a second time interval. The touch sensing signals and the fingerprint sensing signals are inputted to the electronic circuit through the second terminals.
    Type: Application
    Filed: July 31, 2020
    Publication date: February 4, 2021
    Applicant: Novatek Microelectronics Corp.
    Inventors: Huan-Teng Cheng, Wei-Lun Shih, Huang-Chin Tang
  • Publication number: 20210034833
    Abstract: An electronic circuit adapted to drive a display panel including touch sensors and fingerprint sensors is provided. The electronic circuit includes a first circuit, a second circuit, a first switch circuit and a control circuit. The first circuit generates display driving signals for driving the display panel. The second circuit receives fingerprint sensing signals from the fingerprint sensors. The first switch circuit is coupled to a second switch circuit on the display panel. The control circuit generates control signals for controlling the first switch circuit and the second switch circuit, so as to control the electronic circuit to transmit the display driving signals from the first circuit to the data lines through the first and the second switch circuits in a first time interval, and control the electronic circuit to receive the fingerprint sensing signals from the fingerprint sensors through the first and the second switch circuits in a second time interval.
    Type: Application
    Filed: July 20, 2020
    Publication date: February 4, 2021
    Applicant: Novatek Microelectronics Corp.
    Inventors: Huan-Teng Cheng, Ting-Hsuan Hung, Tzu-Wen Hsieh, Wei-Lun Shih, Huang-Chin Tang
  • Publication number: 20210034835
    Abstract: An electronic circuit including a touch control circuit, a fingerprint sensing circuit and a switch circuit is provided. The touch control circuit is configured to receive touch sensing signals from a panel and determine a touch area according to the touch sensing signals. The fingerprint sensing circuit is configured to receive fingerprint sensing signals corresponding to at least one fingerprint image from fingerprint sensors disposed in the panel via fingerprint sensing lines. The switch circuit is coupled to the fingerprint sensing circuit. The switch circuit is configured to be coupled to a part of the fingerprint sensing lines that is selected to form a fingerprint sensing zone for a fingerprint sensing operation according to the determined touch area. Each of the fingerprint sensing lines is selectable to be a boundary of the fingerprint sensing zone. An electronic device and a method for sensing at least one fingerprint image are also provided.
    Type: Application
    Filed: June 21, 2020
    Publication date: February 4, 2021
    Applicant: Novatek Microelectronics Corp.
    Inventors: Huan-Teng Cheng, Ting-Hsuan Hung, Wei-Lun Shih, Huang-Chin Tang
  • Patent number: 10895933
    Abstract: A timing control circuit and an operation method thereof are provided. The timing control circuit includes a receiving circuit, a line memory, and a timing generating circuit. The receiving circuit receives a video packet stream from the outside and provides an external horizontal sync signal and a first data signal. The line memory temporarily stores the first data signal, and outputs a second data signal to a source driver according to an internal horizontal sync signal generated by the timing generating circuit. A video frame period of the second data signal includes a video display operation period and a touch detection period. A video display operation period is divided into a plurality of sub-periods. The timing generating circuit performs a synchronization operation in each of the sub-periods, so as to synchronize the timing of the internal horizontal sync signal with the timing of the external horizontal sync signal.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: January 19, 2021
    Assignee: Novatek Microelectronics Corp.
    Inventors: Huan-Teng Cheng, Huang-Chin Tang
  • Publication number: 20200342801
    Abstract: The present invention discloses a driving method for a source driver, for driving a source line of a display panel. The driving method includes the steps of: driving the source line with a first voltage or a second voltage smaller than the first voltage in a first driving cycle; driving the source line with the first voltage in a second driving cycle next to the first driving cycle when the source line is driven with the first voltage in the first driving cycle; and driving the source line with an overdrive voltage in the second driving cycle when the source line is driven with the second voltage in the first driving cycle. The first voltage is a normal high voltage of the display panel, and the overdrive voltage is greater than the normal high voltage.
    Type: Application
    Filed: April 26, 2019
    Publication date: October 29, 2020
    Inventors: Yen-Tao Liao, Hung-Hsiang Chen, Jen-Ta Yang, Yi-Wei Lin, Huang-Chin Tang
  • Publication number: 20200327858
    Abstract: A gate on array circuit for a display device using dual-gate architecture is disclosed. The GOA circuit comprises circuitry configured to, for a first display line of the display device, generate a first gate driving signal and a second gate driving signal for driving a first gate line and a second gate line of the first display line respectively. A first time period when the first gate driving signal is in an activation state for activating the first gate line of the first display line does not overlap with a first time period when the second gate driving signal is in the activation state for activating the second gate line of the first display line.
    Type: Application
    Filed: May 8, 2020
    Publication date: October 15, 2020
    Inventors: Hung-Hsiang Chen, Tso-Hua Chien, Huang-Chin Tang
  • Publication number: 20200293143
    Abstract: A timing control circuit and an operation method thereof are provided. The timing control circuit includes a receiving circuit, a line memory, and a timing generating circuit. The receiving circuit receives a video packet stream from the outside and provides an external horizontal sync signal and a first data signal. The line memory temporarily stores the first data signal, and outputs a second data signal to a source driver according to an internal horizontal sync signal generated by the timing generating circuit. A video frame period of the second data signal includes a video display operation period and a touch detection period. A video display operation period is divided into a plurality of sub-periods. The timing generating circuit performs a synchronization operation in each of the sub-periods, so as to synchronize the timing of the internal horizontal sync signal with the timing of the external horizontal sync signal.
    Type: Application
    Filed: March 14, 2019
    Publication date: September 17, 2020
    Applicant: Novatek Microelectronics Corp.
    Inventors: Huan-Teng Cheng, Huang-Chin Tang
  • Patent number: 10775921
    Abstract: A method of controlling timing for a touch and display driver system includes the steps of: receiving an external signal; generating a plurality of time units each having a display period and a touch period; generating an internal signal for controlling a display operation in the display period; and synchronizing the internal signal with the external signal for a time unit among the plurality of time units at a time point different from at least one of the start of the time unit and the end of the time unit.
    Type: Grant
    Filed: January 2, 2019
    Date of Patent: September 15, 2020
    Assignee: NOVATEK Microelectronics Corp.
    Inventors: Huan-Teng Cheng, Huang-Chin Tang
  • Publication number: 20200273394
    Abstract: A dual-gate display panel, a control circuit, and a display device are provided. The display device includes the dual-gate display panel and the control circuit. The display panel includes a first subpixel, a second subpixel, a third subpixel, and a fourth subpixel, which are sequentially arranged along a first direction. The first subpixel and the third subpixel are electrically connected to a first source line. The second subpixel and the fourth subpixel are electrically connected to a second source line.
    Type: Application
    Filed: July 29, 2019
    Publication date: August 27, 2020
    Inventors: Hung-Hsiang CHEN, Tso-Hua CHIEN, Huang-Chin TANG
  • Publication number: 20200251038
    Abstract: This disclosure relates to techniques for a driving apparatus including a reordering circuit and a source driving circuit. The reordering circuit can be configured to reorder a plurality of sub-pixel data of an input data string to generate a reordered data string so as to reduce a color switching number associated with a target data line. The source driving circuit can be coupled to the reordering circuit to receive the reordered data string. The source driving circuit can be configured to drive the target data line of a display panel according to the reordered data string.
    Type: Application
    Filed: January 21, 2020
    Publication date: August 6, 2020
    Applicant: Novatek Microelectronics Corp.
    Inventors: Tso-Hua Chien, Hung-Hsiang Chen, Huang-Chin Tang