Patents by Inventor Hung-Hsiang Chen

Hung-Hsiang Chen 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: 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: 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: 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
  • Publication number: 20200251072
    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 22, 2020
    Publication date: August 6, 2020
    Applicant: Novatek Microelectronics Corp.
    Inventors: Hung-Hsiang Chen, Tso-Hua Chien, Huang-Chin Tang
  • Publication number: 20190369440
    Abstract: A display apparatus including a display panel, a backlight plate and a gate driving circuit is provided. The display panel has a plurality of first scan lines and a plurality of source lines. The backlight plate is overlapped with the display panel and has a plurality of second scan lines and a plurality of data lines. The gate driving circuit is coupled to the first scan lines and the second scan lines respectively through a plurality of pins, so as to transmit a plurality of first scan signals respectively to the first scan lines and transmit a plurality of second scan signals respectively to the second scan lines.
    Type: Application
    Filed: August 28, 2018
    Publication date: December 5, 2019
    Applicant: Chunghwa Picture Tubes, LTD.
    Inventors: Chien-Hsun Kuan, Jhen-Shen Liao, Chih-Chao Chang, Hung-Hsiang Chen
  • Patent number: 10275064
    Abstract: The invention provides an in cell touch display device and a common voltage generating method thereof. The in cell touch display device includes a timing controller and a common voltage generator. The timing controller generates a control signal, divides a time section into a display scanning time section and a touch scanning time section according to the control signal, and divides the touch scanning time section into a touch start time section, a touch execution time section, and a touch end time section sequentially. The common voltage generator raises a common voltage to a first voltage in the touch start time section, provides a periodical pulse signal in the touch execution time section to generate the common voltage, and lowers the common voltage to a second voltage in the touch end time section, so as to improve the efficiency of touch scanning without affecting the efficiency of display scanning.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: April 30, 2019
    Assignee: Chunghwa Picture Tubes, LTD.
    Inventors: Yu-Chen Li, Chao-Yung Hsu, Hung-Hsiang Chen
  • Patent number: 10222902
    Abstract: A touch sensing device includes a substrate, a first electrode, a second electrode, a third electrode, a fourth electrode. The first electrode receives a first triggering signal. The second electrode selectively receives the first triggering signal and a second triggering signal. The first electrode and the second electrode are parallelly disposed on the substrate. The third electrode senses contact touch event according to the first triggering signal to generate a first sensing signal. The fourth electrode selectively senses the contact touch event according to the first triggering signal to generate the first sensing signal and senses contactless touch event according to the second triggering signal to generate a second sensing signal. The third electrode and the fourth electrode are parallelly disposed on the substrate, and the third electrode and the fourth electrode are vertically disposed to the first electrode and the second electrode.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: March 5, 2019
    Assignee: CHUNGHWA PICTURE TUBES, LTD.
    Inventors: Wei-Fu Chang, Jhen-Shen Liao, Hung-Hsiang Chen
  • Publication number: 20190050093
    Abstract: The invention provides an in cell touch display device and a common voltage generating method thereof. The in cell touch display device includes a timing controller and a common voltage generator. The timing controller generates a control signal, divides a time section into a display scanning time section and a touch scanning time section according to the control signal, and divides the touch scanning time section into a touch start time section, a touch execution time section, and a touch end time section sequentially. The common voltage generator raises a common voltage to a first voltage in the touch start time section, provides a periodical pulse signal in the touch execution time section to generate the common voltage, and lowers the common voltage to a second voltage in the touch end time section, so as to improve the efficiency of touch scanning without affecting the efficiency of display scanning.
    Type: Application
    Filed: October 2, 2017
    Publication date: February 14, 2019
    Applicant: Chunghwa Picture Tubes, LTD.
    Inventors: Yu-Chen Li, Chao-Yung Hsu, Hung-Hsiang Chen
  • Publication number: 20190042047
    Abstract: A pixel array substrate including a substrate divided into a pixel region and a peripheral region is provided. A plurality of active devices and a plurality of touch pads are disposed in the pixel region of the substrate. A plurality of gate lines, a plurality of data lines, a plurality of gate signal lines and a plurality of touch signal lines are disposed on the substrate. A gate driver, a source driver and a touch processing unit are disposed in the peripheral region of the substrate and located on a same side of the pixel region. The gate signal lines electrically connect the corresponding gate lines to the gate driver. The touch signal lines electrically connect the corresponding touch pads to the touch processing unit. Portions of the data lines, the gate signal lines and the touch signal lines within the pixel region are parallel to each other.
    Type: Application
    Filed: November 24, 2017
    Publication date: February 7, 2019
    Applicant: Chunghwa Picture Tubes, LTD.
    Inventors: Jhen-Shen Liao, Hung-Hsiang Chen
  • Publication number: 20180143730
    Abstract: A touch sensing device includes a substrate, a first electrode, a second electrode, a third electrode, a fourth electrode. The first electrode receives a first triggering signal. The second electrode selectively receives the first triggering signal and a second triggering signal. The first electrode and the second electrode are parallelly disposed on the substrate. The third electrode senses contact touch event according to the first triggering signal to generate a first sensing signal. The fourth electrode selectively senses the contact touch event according to the first triggering signal to generate the first sensing signal and senses contactless touch event according to the second triggering signal to generate a second sensing signal. The third electrode and the fourth electrode are parallelly disposed on the substrate, and the third electrode and the fourth electrode are vertically disposed to the first electrode and the second electrode.
    Type: Application
    Filed: December 22, 2016
    Publication date: May 24, 2018
    Inventors: Wei-Fu CHANG, Jhen-Shen LIAO, Hung-Hsiang CHEN
  • Patent number: 9946916
    Abstract: A capacitive fingerprint sensor and a sensing panel are provided. The capacitive fingerprinting sensor includes a sensing circuit, a level switch, an output switch. The sensing circuit has a first capacitor providing a sensing voltage according to a first sensing driving signal. A control terminal of the level switch is coupled to the sensing circuit to receive the sensing voltage, a first terminal thereof receives a high voltage level, and a second terminal thereof provides a sensing determination signal. A control terminal of the output switch receives a second sensing driving signal, a first terminal thereof is coupled to the second terminal of the level switch to receive the sensing determination signal, and a second terminal thereof is coupled to a data line. The sensing determination signal is provided through the level switch to avoid a parasitic capacitance on a trace influencing a voltage level of the sensing determination signal.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: April 17, 2018
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Jhen-Shen Liao, Hung-Hsiang Chen
  • Publication number: 20180005013
    Abstract: A capacitive fingerprint sensor and a sensing panel are provided. The capacitive fingerprinting sensor includes a sensing circuit, a level switch, an output switch. The sensing circuit has a first capacitor providing a sensing voltage according to a first sensing driving signal. A control terminal of the level switch is coupled to the sensing circuit to receive the sensing voltage, a first terminal thereof receives a high voltage level, and a second terminal thereof provides a sensing determination signal. A control terminal of the output switch receives a second sensing driving signal, a first terminal thereof is coupled to the second terminal of the level switch to receive the sensing determination signal, and a second terminal thereof is coupled to a data line. The sensing determination signal is provided through the level switch to avoid a parasitic capacitance on a trace influencing a voltage level of the sensing determination signal.
    Type: Application
    Filed: August 1, 2016
    Publication date: January 4, 2018
    Applicant: Chunghwa Picture Tubes, LTD.
    Inventors: Jhen-Shen Liao, Hung-Hsiang Chen
  • Publication number: 20170293377
    Abstract: The invention provides a handheld electronic device including a case, a touch display module, a pressure sensing layer, and a metal layer. The case has a receiving recess. The touch display module is disposed in the receiving recess and includes an embedded touch display panel and a backlight module located under the embedded touch display panel. The pressure sensing layer is built in the touch display module. The metal layer is disposed in the receiving recess and located under the backlight module. An air gap exists between the metal layer and the backlight module. The pressure sensing layer, the air gap, and the metal layer constitute a capacitor unit. According to the invention, the production costs of the handheld electronic device are reduced and the processes of fabrication are simplified.
    Type: Application
    Filed: May 6, 2016
    Publication date: October 12, 2017
    Inventors: Chao-Yung Hsu, Chih-Chao Chang, Hung-Hsiang Chen
  • Patent number: 9773771
    Abstract: A display panel including a substrate, a first and second driving chips, a circuit board and multiple second signal traces are provided. The first and second driving chips are disposed in a non-display region and located adjacent to each other. The first driving chip has multiple first pins disposed on a first short side and a first long side of the first driving chip. The second driving chip has multiple second pins disposed on a second short side and a second long side of the second driving chip. In the non-display region, a width of the circuit board is smaller than a total width of the first driving chip, the second driving chip and a distance between the first driving chip and the second driving chip, and the circuit board has a plurality of first signal traces. The display panel of the invention decreases an amount of required circuit boards.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: September 26, 2017
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Shen-Yu Wu, Yun-Chih Chen, Hung-Hsiang Chen
  • Publication number: 20170103975
    Abstract: A display panel including a substrate, a first and second driving chips, a circuit board and multiple second signal traces are provided. The first and second driving chips are disposed in a non-display region and located adjacent to each other. The first driving chip has multiple first pins disposed on a first short side and a first long side of the first driving chip. The second driving chip has multiple second pins disposed on a second short side and a second long side of the second driving chip. In the non-display region, a width of the circuit board is smaller than a total width of the first driving chip, the second driving chip and a distance between the first driving chip and the second driving chip, and the circuit board has a plurality of first signal traces. The display panel of the invention decreases an amount of required circuit boards.
    Type: Application
    Filed: November 12, 2015
    Publication date: April 13, 2017
    Inventors: Shen-Yu Wu, Yun-Chih Chen, Hung-Hsiang Chen
  • Patent number: 9575603
    Abstract: A touch panel includes a substrate and a first electrode array. The first electrode array is disposed on the substrate and includes first and second touch regions. The first electrode array further includes first, second, third, and fourth electrodes. The first electrode is disposed on the first touch region. The second electrode is disposed on the first touch region corresponding in position to the first electrode. The third electrode is disposed on the second touch region. The fourth electrode is disposed on the second touch region corresponding in position to the third electrode. In addition, the first to fourth electrodes are all disposed on the same layer. The first electrode is disposed diagonally to the fourth electrode, and the first electrode is electrically coupled to the fourth electrode. Furthermore, a method for controlling the touch panel is also disclosed herein.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: February 21, 2017
    Assignee: CHUNGHWA PICTURE TUBES, LTD.
    Inventors: Ming-Chi Weng, Yun-Chih Chen, Hung-Hsiang Chen
  • Publication number: 20170039918
    Abstract: A display panel is provided. The display panel includes a plurality of data lines and a sub-pixel array. The sub-pixel array includes a plurality of pixel units. The pixel units are arranged along a first direction or a second direction, the first direction is inclined at a first angle relative to a column direction, and the second direction is inclined at a second angle relative to the column direction. Each of the pixel units includes a plurality of sub-pixels respectively corresponding to three different colors and adjacently arranged in a row direction. Each of the data lines is coupled to a first sub-pixel unit at a side of the data line along the column direction and a second sub-pixel unit at another side of the data line along the column direction. The first sub-pixel unit and the second sub-pixel unit are located in different rows.
    Type: Application
    Filed: August 6, 2015
    Publication date: February 9, 2017
    Inventors: Fu-Hsiang Tsao, Jhen-Shen Liao, Hung-Hsiang Chen, De-Wei Kuo
  • Patent number: 9484756
    Abstract: A battery includes a casing, a battery pack, and at least two electrical connecting assemblies. The casing includes an inner space and plural contact planes. Vertical directions of the contact planes are different. The battery pack includes a battery cell disposed in the inner space, and the battery cell includes a positive and a negative electrodes. The electrical connecting assemblies are electrically connected to the positive electrode and the negative electrode respectively, so as to transmit power between the battery pack and an electronic device. The electrical connecting assembly electrically connected to the positive electrode is arranged on at least two of the contact planes, and the electrical connecting assembly electrically connected to the negative electrode is arranged on at least two of the contact planes. If power supply in one certain direction is interrupted, the battery transmits power in the other directions, thereby avoiding power supply from being interrupted.
    Type: Grant
    Filed: April 17, 2012
    Date of Patent: November 1, 2016
    Assignee: Getac Technology Corporation
    Inventors: Huang-Wen Su, Hung-Hsiang Chen