Patents by Inventor YU-FU WENG

YU-FU WENG 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: 20210042005
    Abstract: A touch display apparatus with display function able to compensate for touch function effects includes N electrodes covered by an insulating layer, first connection lines, and second connection lines. The insulating layer defines through holes at regions corresponding to the electrode blocks. The first to (M?1)th electrode blocks are respectively connected to the second connection lines. The Mth to Nth electrode blocks are respectively connected to the first connection lines. The Mth electrode block is connected to the first connection line through the through holes in a first specified number. The (M+1)th to Nth electrode blocks are connected to the first connection line in a second specified number.
    Type: Application
    Filed: October 31, 2019
    Publication date: February 11, 2021
    Inventors: YU-FU WENG, HUNG-YUN HUANG
  • Patent number: 10896639
    Abstract: A display apparatus with a border of reduced size includes pixel units arranged in a matrix. Each pixel unit includes a driving transistor. The display apparatus defines a display region and a non-display region. The display region includes horizontal scan lines and data lines. The horizontal scan lines are parallel with each along a first direction, and the data lines are parallel with each other along a second direction. A pixel group contains three pixels and these pixel units are arranged on different columns along the first direction, and in different rows along the second direction. The driving transistors of these pixel units are electrically connected to one data line through connection lines.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: January 19, 2021
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Yu-Fu Weng, Chien-Wen Lin, Tzu-Yu Cheng
  • Publication number: 20210004102
    Abstract: An in-cell touch display device including a display panel and a backlight module proofed against humming or other audible output by cross-induction includes touch electrodes in the display panel. The in-cell touch display device further includes an induced charge-eliminating element or a driving element to eliminate induced charges generated in the backlight module due to induction caused by the touch electrodes.
    Type: Application
    Filed: April 8, 2020
    Publication date: January 7, 2021
    Inventors: YU-FU WENG, HUNG-YUN HUANG
  • Patent number: 10854133
    Abstract: A micro LED display panel includes a first metal layer, a micro LED layer on the first metal layer, and a transparent conductive layer on a side of the micro LED layer opposite from the first metal layer. The micro LED layer includes a plurality of micro LEDs spaced apart from each other. The first metal layer includes a plurality of first metal units spaced apart from each other. The plurality of first metal units serve as anodes or cathodes of the plurality of micro LEDs. The transparent conductive layer includes a plurality of transparent conductive units spaced apart from each other. The plurality of transparent conductive units serve as anodes or cathodes of the plurality of micro LEDs and are multiplexed as touch electrodes. The micro LED display panel of the present disclosure has both a display function and a touch function.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: December 1, 2020
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Chia-Lin Liu, Yu-Fu Weng, Chien-Wen Lin, Tzu-Yu Cheng
  • Patent number: 10761653
    Abstract: A display panel able to receive full fingerprint impressions in a display area together with command touches, in addition to showing images, includes a substrate, scan lines, data lines, touch scan lines, touch lines, sub-pixels, and fingerprint sensing units. A method for driving such multifunctional touch display panel is also provided.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: September 1, 2020
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Yu-Fu Weng, Chien-Wen Lin, Chia-Lin Liu
  • Patent number: 10748940
    Abstract: A TFT substrate for a touch display panel of reduced thickness defines a display area and a surrounding non-display area. The TFT substrate includes a first conductive layer on the substrate and a second conductive layer on the first conductive layer. In the display area, the first conductive layer includes data lines and the second conductive layer includes common electrodes. Each common electrode extends as a strip along a first direction. Each data line extends along a second direction. The first direction intersects the second direction. Each data line crosses the common electrodes. Each data line functions as a touch driving electrode and each common electrode functions as a touch sensing electrode.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: August 18, 2020
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Chia-Lin Liu, Yu-Fu Weng, Chien-Wen Lin, Tzu-Yu Cheng
  • Patent number: 10732757
    Abstract: A self-luminescence display apparatus capable of detecting pressure of touches applied by a user, the apparatus includes a display panel having a plurality of conductive layers and a supporting frame. One of the conductive layers cooperates with the supporting frame to form a plurality of force sensing capacitors. When a touch is applied, the display panel deforms according to pressure applied, which cause the capacitances of the force sensing capacitors to alter. The change in capacitance value, corresponding to a position where the touch operation is applied, can be calculated.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: August 4, 2020
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Chien-Wen Lin, Yu-Fu Weng, Chia-Lin Liu
  • Patent number: 10690950
    Abstract: A touch display device includes a touch display module. The touch display module includes a TFT substrate, a color filtering substrate, and a liquid crystal layer encapsulated between the TFT substrate and the color filtering substrate. A first electrode layer is formed on a surface of the color filtering substrate facing the TFT substrate. A second electrode layer is formed on a surface of the TFT substrate facing the color filtering substrate. The touch display device further includes at least one supporting element on a side of the touch display module. The supporting element is elastic and configured for elastically resisting against the touch display module.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: June 23, 2020
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Yu-Fu Weng, Chien-Wen Lin, Chia-Lin Liu, Tzu-Yu Cheng
  • Publication number: 20200183563
    Abstract: A display panel able to receive full fingerprint impressions in a display area together with command touches, in addition to showing images, includes a substrate, scan lines, data lines, touch scan lines, touch lines, sub-pixels, and fingerprint sensing units. A method for driving such multifunctional touch display panel is also provided.
    Type: Application
    Filed: September 12, 2019
    Publication date: June 11, 2020
    Inventors: YU-FU WENG, CHIEN-WEN LIN, CHIA-LIN LIU
  • Publication number: 20200183211
    Abstract: An LCD device defining a display area includes a backlight module for providing light, an LCD panel stacked on the backlight module, and a fingerprint sensor in the backlight module. The fingerprint sensor is positioned in the display area and defines a fingerprint sensing area in the display area.
    Type: Application
    Filed: November 26, 2019
    Publication date: June 11, 2020
    Inventors: YU-FU WENG, HUNG-YUN HUANG
  • Patent number: 10656744
    Abstract: A thin film transistor array substrate in a touch display panel having reinforced common voltage uniformity on sub-electrodes therein includes a common electrode layer, a driving circuit, a controlling switch, a plurality of first lines, at least one second line, and at least one third line. The common electrode layer includes the spaced sub-electrodes. Each sub-electrode uses a first line electrically connect to the driving circuit and the controlling switch. The at least one second line is electrically connected to the driving circuit and the controlling switch, and when the controlling switch is turned on, the second line is electrically connected to the first lines, the driving circuit thus applying a common voltage to the sub-electrodes. A touch display panel using the thin film transistor array substrate is also provided.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: May 19, 2020
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Yu-Fu Weng, Chien-Wen Lin, Chia-Lin Liu, Tzu-Yu Cheng
  • Patent number: 10642395
    Abstract: A shift register driving a touch display device generates shifted pulse signals shifted by a specified phase. The shift register includes unit circuits connected in multiple stages. Each unit circuit includes an output terminal, an input transistor, an output transistor, and a pull-up transistor. The input transistor is controlled by a first control signal and outputs a high-level voltage to a first node based on the value of a trigger signal. The output transistor outputs the shifted pulse signal, which is synchronous with a clock control signal, based on the value of the high-level voltage of the first node. A blank period is inserted between the Nth unit circuit and the (N+1)th unit circuit. After the blank period, the pull-up transistor clamps the voltage of the output terminal of the (N+1)th unit circuit at a high-level voltage.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: May 5, 2020
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Yu-Fu Weng, Chien-Wen Lin, Tzu-Yu Cheng
  • Publication number: 20200012368
    Abstract: A shift register driving a touch display device generates shifted pulse signals shifted by a specified phase. The shift register includes unit circuits connected in multiple stages. Each unit circuit includes an output terminal, an input transistor, an output transistor, and a pull-up transistor. The input transistor is controlled by a first control signal and outputs a high-level voltage to a first node based on the value of a trigger signal. The output transistor outputs the shifted pulse signal, which is synchronous with a clock control signal, based on the value of the high-level voltage of the first node. A blank period is inserted between the Nth unit circuit and the (N+1)th unit circuit. After the blank period, the pull-up transistor clamps the voltage of the output terminal of the (N+1)th unit circuit at a high-level voltage.
    Type: Application
    Filed: September 6, 2018
    Publication date: January 9, 2020
    Inventors: YU-FU WENG, CHIEN-WEN LIN, TZU-YU CHENG
  • Publication number: 20200004366
    Abstract: A touch display panel which includes an integral fingerprint recognition portion also comprises a central processor, a switch module, and a main touch portion. The fingerprint recognition portion comprises fingerprint recognition electrodes connected to the central processor. The main touch portion comprises touch electrodes to sense touches. At least one touch electrode is electrically connected to one fingerprint recognition electrode through the switch module, and the switch module is controlled by the processor to cycle through connected or disconnected states between the touch electrode and the fingerprint recognition electrode.
    Type: Application
    Filed: June 26, 2019
    Publication date: January 2, 2020
    Inventors: YU-FU WENG, CHIEN-WEN LIN, CHIA-LIN LIU, TZU-YU CHENG
  • Publication number: 20190391440
    Abstract: A touch display device includes a touch display module. The touch display module includes a TFT substrate, a color filtering substrate, and a liquid crystal layer encapsulated between the TFT substrate and the color filtering substrate. A first electrode layer is formed on a surface of the color filtering substrate facing the TFT substrate. A second electrode layer is formed on a surface of the TFT substrate facing the color filtering substrate. The touch display device further includes at least one supporting element on a side of the touch display module. The supporting element is elastic and configured for elastically resisting against the touch display module.
    Type: Application
    Filed: August 24, 2018
    Publication date: December 26, 2019
    Inventors: YU-FU WENG, CHIEN-WEN LIN, CHIA-LIN LIU, TZU-YU CHENG
  • Patent number: 10509499
    Abstract: A TFT substrate defines a display area and a non-display area surrounding the display area. The TFT substrate includes a substrate and a conductive layer on the substrate. The conductive layer includes a plurality of touch driving electrodes, a plurality of touch sensing electrodes, and a plurality of common electrodes. The touch sensing electrodes are arranged in rows along a first direction and in columns along a second direction. Each touch driving electrode and each common electrode extend as strips along the first direction, the touch driving electrodes and the common electrodes are arranged in one column along the second direction. One common electrode and one row of the touch sensing electrodes are arranged at each side of each touch driving electrode along the second direction. The TFT substrate further includes a plurality of sensing lines.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: December 17, 2019
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Chia-Lin Liu, Yu-Fu Weng, Chien-Wen Lin, Tzu-Yu Cheng
  • Publication number: 20190377446
    Abstract: A fingerprint-sensing array on a substrate includes the substrate, scan lines, data lines, readout lines, sub-pixels, and multiple fingerprint recognition units. Areas between adjacent scan lines and adjacent data lines define one sub-pixel with pixel electrode and a first transistor. Of the first transistor, drain electrode connects to the pixel electrode, source electrode connects to one data line and gate electrode connects to one scan line. Thus some of the sub-pixels contain fingerprint recognition units, these being a photodiode electrically connected to one readout line. The readout line passes signals generated by the photodiode to achieve fingerprint recognition function. A display panel using the array on the substrate and a display device using the display panel are also provided.
    Type: Application
    Filed: January 15, 2019
    Publication date: December 12, 2019
    Inventors: CHIEN-WEN LIN, YU-FU WENG, CHIA-LIN LIU
  • Publication number: 20190369783
    Abstract: A thin film transistor array substrate in a touch display panel having reinforced common voltage uniformity on sub-electrodes therein includes a common electrode layer, a driving circuit, a controlling switch, a plurality of first lines, at least one second line, and at least one third line. The common electrode layer includes the spaced sub-electrodes. Each sub-electrode uses a first line electrically connect to the driving circuit and the controlling switch. The at least one second line is electrically connected to the driving circuit and the controlling switch, and when the controlling switch is turned on, the second line is electrically connected to the first lines, the driving circuit thus applying a common voltage to the sub-electrodes. A touch display panel using the thin film transistor array substrate is also provided.
    Type: Application
    Filed: December 3, 2018
    Publication date: December 5, 2019
    Inventors: YU-FU WENG, CHIEN-WEN LIN, CHIA-LIN LIU, TZU-YU CHENG
  • Patent number: 10490133
    Abstract: A display driving circuit for driving pixel units comprises a time controller, a first driving circuit, and a second driving circuit. The first driving circuit comprises a plurality of shift registers, and supplies phase-shifted scan signals. The shift registers are connected in cascade. Each shift register receives two clock signals from the time controller. Each shift register is a bidirectional shift register. Each shift register includes a pull-up transistor, a pull-down transistor, and a pull-down unit. The pull-down unit controls the pull-down transistor to turn on after the shift register being reset to prevent the shift register outputting an error signal.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: November 26, 2019
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Chien-Wen Lin, Yu-Fu Weng, Chia-Lin Liu
  • Patent number: 10488963
    Abstract: An in-cell touch display apparatus includes a color filter structure, a thin film transistor (TFT) array structure, a liquid crystal layer between the color filter structure and the TFT array structure, and a driving and detection unit. The color filter structure comprises a touch electrode layer. The TFT array structure comprises a conductive layer. The touch electrode layer comprises a plurality of touch electrodes arranged in a matrix and a plurality of pressure sensing electrodes arranged in a matrix. The touch electrodes and the pressure sensing electrodes are located on a same layer. The conductive layer comprises a plurality of conductive portions. The touch electrodes sense a touch position, and the pressure sensing electrodes and the conductive portions cooperate with each other to sense a touch pressure.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: November 26, 2019
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Yu-Fu Weng, Chien-Wen Lin, Chia-Lin Liu