Patents by Inventor Shih-Chan Tai

Shih-Chan Tai 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: 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: 20230388666
    Abstract: Disclosed are an image sensor circuit and an image sensor device including the image sensor circuit device. The image sensor circuit includes a pixel array formed by a plurality of pixel circuits. Each pixel circuit includes a first sub-pixel circuit, a first control circuit, a second sub-pixel circuit and a second control circuit. The first control circuit may sense light in a first wavelength range and control the first sub-pixel circuit to output a first output information at a first frame rate. The second control circuit may sense light in a second wavelength range and control the second sub-pixel circuit to output a second output information at a second frame rate. The first frame rate is higher than the second frame rate, and the first wavelength range does not overlap with the second wavelength range.
    Type: Application
    Filed: May 3, 2023
    Publication date: November 30, 2023
    Inventors: Ping-Hung Yin, Jia-Shyang Wang, Shih-Chan Tai
  • Publication number: 20230388671
    Abstract: The present invention relates to an image sensing device, including: an image sensing array, a conversion unit, and a processing circuit. The image sensing array is used to generate sensing signals of different periods. The conversion unit is used to convert the sensing signals from analog to digital. The processing circuit is used to generate a frame during an image capturing operation. The image sensing array includes a plurality of sensing sub-pixels, and the sensing sub-pixels have a sensing circuit and a storage circuit. The sensing circuit generates the sensing signals and sequentially stores the sensing signal in the storage circuit. The storage circuit sequentially outputs the sensing signals to the conversion unit.
    Type: Application
    Filed: May 9, 2023
    Publication date: November 30, 2023
    Inventors: Ping-Hung Yin, Jia-Shyang Wang, Jia-Sian Lyu, Shih-Chan Tai
  • Publication number: 20230370744
    Abstract: An image sensor and an operation method thereof are provided. The image sensor includes a first pixel circuit and a ramp signal generator. The first pixel circuit includes a first pixel unit; a first transfer transistor coupled to the first pixel unit and a first floating diffusion node; a first readout transistor coupled to the first floating diffusion node; a first ramp capacitor coupled to the first floating diffusion node and receiving a first ramp signal; and a first reset transistor coupled to the first floating diffusion node and receiving a reset signal. The ramp signal generator is coupled to the first ramp capacitor and configured to provide the first ramp signal. A voltage range or a counting result of the pixel circuit during at least one of a reset period and a readout period has an offset.
    Type: Application
    Filed: April 28, 2023
    Publication date: November 16, 2023
    Applicant: Guangzhou Tyrafos Semiconductor Technologies Co., LTD
    Inventors: Ping-Hung Yin, Jia-Shyang Wang, Shih-Chan Tai