Patents by Inventor Cheng-Chieh Lien

Cheng-Chieh Lien 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: 12073757
    Abstract: The present invention provides an operating method of a display device. An example operating method includes driving each pixel for each frame, wherein a plurality of pixels of the display device are disposed in an array of rows and columns, a period of one frame comprises one or more data sections and one or more off-sections, ratios of time length of the one or more data sections are substantially the same as a sequence of powers of 2, each of the one or more data sections corresponds to an ON period or an OFF period related to a specified brightness, grey scale color, or luminance, and each of the one or more off-sections corresponds to the OFF period unrelated to the specified brightness, grey scale color, or luminance.
    Type: Grant
    Filed: February 6, 2023
    Date of Patent: August 27, 2024
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Cheng-Chieh Lien, Akira Sakaigawa
  • Patent number: 12039909
    Abstract: The present invention provides an operating method of a display device. An example operating method includes driving each pixel for each frame, wherein a plurality of pixels of the display device are disposed in an array of rows and columns, a period of one frame comprises one or more data sections and one or more off-sections, ratios of time length of the one or more data sections are substantially the same as a sequence of powers of 2, each of the one or more data sections corresponds to an ON period or an OFF period related to a specified brightness, grey scale color, or luminance, and each of the one or more off-sections corresponds to the OFF period unrelated to the specified brightness, grey scale color, or luminance.
    Type: Grant
    Filed: February 6, 2023
    Date of Patent: July 16, 2024
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Cheng-Chieh Lien, Akira Sakaigawa
  • Publication number: 20230230520
    Abstract: The present invention provides an operating method of a display device. An example operating method includes driving each pixel for each frame, wherein a plurality of pixels of the display device are disposed in an array of rows and columns, a period of one frame comprises one or more data sections and one or more off-sections, ratios of time length of the one or more data sections are substantially the same as a sequence of powers of 2, each of the one or more data sections corresponds to an ON period or an OFF period related to a specified brightness, grey scale color, or luminance, and each of the one or more off-sections corresponds to the OFF period unrelated to the specified brightness, grey scale color, or luminance.
    Type: Application
    Filed: February 6, 2023
    Publication date: July 20, 2023
    Inventors: Cheng-Chieh Lien, Akira Sakaigawa
  • Publication number: 20230186819
    Abstract: The present disclosure provides operating methods and apparatuses of a display device. In an implementation, a method includes driving each pixel for each frame, wherein a plurality of pixels of the display device are disposed in an array of rows and columns, where a period of one frame comprises Nd time sections, one of Ba different voltage levels is applied to the pixel in each time section, Ba is greater than or equal to 3, the sum of the results of multiplying the length of each time section by the applied voltage level corresponds to a brightness, grey scale color, or luminance. One of suitable applications of the present invention is a micro-LED display.
    Type: Application
    Filed: February 3, 2023
    Publication date: June 15, 2023
    Inventors: Cheng-Chieh LIEN, Akira SAKAIGAWA
  • Patent number: 10679570
    Abstract: A power supply module for a driving device of a display system includes a source power unit, for outputting a source high voltage only in a first period and outputting a source low voltage only in a second period according to a power control signal, wherein the source high voltage and the source low voltage are utilized for generating a plurality of data signals of a plurality of pixels in the display system; and a bias power unit, for generating a common voltage, wherein the common voltage is between the source high voltage and the source low voltage; wherein the first period does not overlap the second period.
    Type: Grant
    Filed: July 10, 2016
    Date of Patent: June 9, 2020
    Assignee: Sitronix Technology Corp.
    Inventors: Cheng-Chieh Lien, Kai-Yi Wu
  • Publication number: 20170084230
    Abstract: A power supply module for a driving device of a display system includes a source power unit, for outputting a source high voltage only in a first period and outputting a source low voltage only in a second period according to a power control signal, wherein the source high voltage and the source low voltage are utilized for generating a plurality of data signals of a plurality of pixels in the display system; and a bias power unit, for generating a common voltage, wherein the common voltage is between the source high voltage and the source low voltage; wherein the first period does not overlap the second period.
    Type: Application
    Filed: July 10, 2016
    Publication date: March 23, 2017
    Inventors: Cheng-Chieh Lien, Kai-Yi Wu