Patents by Inventor Ping-Hung Wang

Ping-Hung Wang 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: 20240153457
    Abstract: The present invention is related to a display device, including: a plurality of sub-pixel areas, each including a pixel circuit, each pixel circuit including: a diode, configured to be in a forward-biasing state during a display phase of the pixel circuit for light-emitting and configured to be in a reverse-biasing state in a sensing phase of the pixel circuit for light-sensing; a driving transistor for driving the diode during the display phase and serving as a source follower in the sensing phase; first to sixth transistors, applied to the gates of the first to sixth transistors respectively so that the pixel circuit switching between the display phase and the sensing phase; and a capacitor for storing a data voltage to be written to the diode in the display phase and storing the charge accumulated by the diode in the sensing phase.
    Type: Application
    Filed: October 30, 2023
    Publication date: May 9, 2024
    Inventors: Ping-Hung Yin, Jia-Shyang Wang, Dean Wang
  • Publication number: 20240153448
    Abstract: The present invention is related to a display device, including: a plurality of sub-pixel areas, each including a pixel circuit, each pixel circuit including: a diode, configured to be in a forward-biasing state during a displaying phase of the pixel circuit for emitting light and configured to be in a reverse-biasing state in a sensing phase of the pixel circuit so as to generate a sensing voltage; a first circuit by applying gate control signals to each pixel circuit, so that each pixel circuit switches between the display phase and the sensing phase, respectively; and a second circuit including a plurality of readout circuits, each readout circuit includes an operational amplifier for reading out the sensing voltage in the sensing phase.
    Type: Application
    Filed: October 31, 2023
    Publication date: May 9, 2024
    Inventors: Ping-Hung Yin, Jia-Shyang Wang, Jia-Sian Lyu
  • Publication number: 20240153447
    Abstract: The present invention is related to a display device, including: a plurality of sub-pixel areas, each including a sub-pixel circuit, each sub-pixel circuit including: a diode, configured to be in a forward-biasing state during a displaying phase of the sub-pixel circuit for emitting light and configured to be in a reverse-biasing state for sensing light of the sub-pixel circuit in a sensing phase; a driving transistor for driving the diode during the display phase; first to sixth transistors, gate control signals are applied to gates of the first to sixth transistors respectively, so that the sub-pixel circuit switching between the display phase and the sensing phase; and a capacitor for storing a data voltage to be written to the diode in the display phase, wherein in the sensing phase the diode generates a photocurrent to an operational amplifier, such that the operational amplifier outputs a photocurrent output signal.
    Type: Application
    Filed: November 2, 2023
    Publication date: May 9, 2024
    Inventors: Ping-Hung Yin, Jia-Shyang Wang, Shih-Chan Tai
  • Publication number: 20240153458
    Abstract: The present invention is related to a display device, including: a display panel having a plurality of sub-pixel areas, each including a pixel circuit, each pixel circuit including: a diode, configured to be in a forward-biasing state during a display phase of the pixel circuit for light-emitting and configured to be in a reverse-biasing state in a sensing phase of the pixel circuit to generate a sensing voltage; a driving transistor for driving the diode during the display phase; a readout transistor, with a gate receiving the sensing voltage during the sensing phase to serve as a source follower; first to seventh transistors, gate control signals applied to the gates of the first to seventh transistors respectively so that the pixel circuit switching between the display phase and the sensing phase; and a capacitor for storing a data voltage to be written to the diode in the display phase.
    Type: Application
    Filed: November 2, 2023
    Publication date: May 9, 2024
    Inventors: Ping-Hung Yin, Jia-Shyang Wang, Yu Hsiang Wang
  • Patent number: 11972799
    Abstract: A filament forming method includes: performing first stage to apply first bias including gate and drain voltages to a resistive memory unit plural times until read current reaches first saturating state, latching read current in first saturating state as saturating read current, determining whether rate of increase of saturating read current is less than first threshold value; when rate of increase of saturating read current is not less than first threshold value, performing second stage to apply second bias, by increasing gate voltage and decreasing drain voltage, to the resistive memory unit plural times until read current reaches second saturating state, latching read current in second saturating state as saturating read current and determining whether rate of increase of saturating read current is less than first threshold value; finishing the method when rate of increase of saturating read current is less than first threshold value and saturating read current reaches target current value.
    Type: Grant
    Filed: March 1, 2022
    Date of Patent: April 30, 2024
    Assignee: Winbond Electronics Corp.
    Inventors: Frederick Chen, Ping-Kun Wang, Chia-Hung Lin, Jun-Yao Huang
  • Patent number: 11953629
    Abstract: A light sensor and a ranging method are provided. The light sensor includes a light source, a sensing sub-pixel, and a control circuit. The sensing sub-pixel includes a diode. The control circuit operates the diode in a Geiger mode or an avalanche linear mode. The control circuit includes a time-to-digital converter, and the time-to-digital converter includes a counting circuit. The counting circuit includes a plurality of counting units. When the time-to-digital converter receives a sensing signal provided by the sensing sub-pixel, the control circuit generates a plurality of count values according to the sensing signal through the counting units of the counting circuit, where the count values are histogram data corresponding to a distance sensing result.
    Type: Grant
    Filed: July 5, 2021
    Date of Patent: April 9, 2024
    Assignee: Guangzhou Tyrafos Semiconductor Technologies Co., LTD
    Inventors: Ping-Hung Yin, Jia-Shyang Wang
  • Patent number: 11937005
    Abstract: An output stage circuit including a current source circuit, a bias circuit, and an output circuit is provided. The bias circuit is coupled between the current source circuit and a ground terminal voltage. The output circuit includes a first transistor, a second transistor, a third transistor, and a load circuit. A control terminal of the first transistor is coupled to the bias circuit. The load circuit is coupled to a second terminal of the first transistor. A second terminal of the second transistor is coupled to a first terminal of the first transistor. A first terminal of the third transistor is coupled to the second terminal of the first transistor.
    Type: Grant
    Filed: November 3, 2021
    Date of Patent: March 19, 2024
    Assignee: Guangzhou Tyrafos Semiconductor Technologies Co., LTD
    Inventors: Jia-Shyang Wang, Ping-Hung Yin
  • Publication number: 20100263107
    Abstract: A recovering sleeve adopted for a hand or a foot comprises an outer film made of an anti-permeation material and including an opening disposed thereon to put a hand or a foot therein; an inner absorbing layer including nutrition liquid attached thereon and covered on an inner side of the outer film; a banding member mounted on the opening to tightly band the opening, thereby recovering the hand or foot effectively.
    Type: Application
    Filed: April 17, 2009
    Publication date: October 21, 2010
    Inventor: Ping-Hung Wang
  • Publication number: 20070285905
    Abstract: A flexible circuit board including a base film, a first conductive layer, a second conductive layer and an adhesive layer is provided. The base film has a first surface and a second surface. The first conductive layer is disposed on the first surface of the base film directly and has a thermal bonding region. The second conductive layer is disposed above the second surface of the base film. The adhesive layer is adhered between the second conductive layer and the base film and does not overlap the thermal bonding region. Because the flexible circuit board can bear the operation temperature of the thermal bonding process, therefore, the reliability of electrical connection between flexible circuit board and PCB can be improved. Besides, only the first conductive layer is formed by sputtering, and therefore the production cost of the present invention can be reduced compared with the prior art.
    Type: Application
    Filed: June 7, 2006
    Publication date: December 13, 2007
    Inventor: Ping-Hung Wang