Patents by Inventor Chih-Hsun Weng

Chih-Hsun 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: 20220114959
    Abstract: The present application relates to a driving circuit for display panel, which drives a plurality of pixel structures of a display panel. Each of pixel structures comprises a light emitting element, which is coupled between a first voltage and a second voltage. The driving circuit comprises a power supply circuit, which is coupled to the pixel structures, provides the first voltage and the second voltage, and adjusts the first voltage or/and the second voltage for adjusting a voltage difference between the first voltage and the second voltage. That is, a current flowing through the light emitting elements of the pixel structures may be adjusted for reducing the flicker in the display panel.
    Type: Application
    Filed: May 24, 2021
    Publication date: April 14, 2022
    Inventors: CHIA-CHIH CHUNG, HUAI-YI HSU, SHU-TSENG CHEN, CHIH-HSUN WENG, I-HSIU YU, KUO-HAO LI
  • Patent number: 8149202
    Abstract: A flat display and a method for modulating a clock signal for driving a flat display are provided. The flat display includes a clock generator and a clock modulator. The clock generator provides a clock signal that includes at least a first cycle waveform and a second cycle waveform following said first cycle waveform. The first cycle waveform is modulated by the clock modulator as a first modulated cycle waveform divided by a first positive modulated cycle waveform and a first negative modulated cycle waveform, and the second cycle waveform is modulated as a second modulated cycle waveform divided by a second positive modulated cycle waveform and a second negative modulated cycle waveform. The first positive modulated cycle waveform and the first negative modulated cycle waveform have a first duration difference, and the second positive modulated cycle waveform and the second negative modulated cycle waveform have a second duration difference different from the first duration difference.
    Type: Grant
    Filed: January 4, 2008
    Date of Patent: April 3, 2012
    Assignee: Chimei Innolux Corporation
    Inventors: Jian-Xun Jiang, Chih-Hsun Weng
  • Patent number: 7531971
    Abstract: A backlight unit comprising a boost circuit and a backlight element. The boost circuit is coupled to a voltage source and controlled by a PWM signal and a switch signal. When the backlight unit operates in a normal mode, the boost circuit is supplied by the voltage source according to the PWM signal and the switch signal to drive the backlight element to emit light. When the backlight unit operates in a standby mode, the voltage source stops supplying the boost circuit according to the PWM signal and the switch signal, and the backlight element stops emitting light.
    Type: Grant
    Filed: May 14, 2007
    Date of Patent: May 12, 2009
    Assignee: TPO Displays Corp.
    Inventor: Chih-Hsun Weng
  • Publication number: 20090058787
    Abstract: The present invention relates to a discharge circuit of a liquid crystal display device which receives a power and controls the charges stored in the pixel units of the pixel matrix of the liquid crystal display device. The discharge circuit includes a control circuit receiving the power and generating a control signal when being disconnected from the power, a horizontal driver and a pre-charge circuit forming a plurality of discharge paths having switches, and a selection circuit receiving the control signal and generating a selection signal for enabling the switches of the discharge paths.
    Type: Application
    Filed: August 29, 2008
    Publication date: March 5, 2009
    Inventors: Chih-Hsun WENG, Sheng-Feng Huang
  • Publication number: 20090046038
    Abstract: A control method applied to a display panel including a gate driver, a source driver, and a plurality of pixel units. Each pixel unit includes a storage capacitor. At a first time point, a scan signal is provided by the gate driver. At a second time point following the first time point, at least one data signal is provided by the source driver. The storage capacitor stores a corresponding voltage according to the data signal and a common voltage. At the second time point, the common voltage is stable.
    Type: Application
    Filed: July 22, 2008
    Publication date: February 19, 2009
    Inventors: Chih-Hsun Weng, I-Chun Lai, Sheng-Feng Huang
  • Publication number: 20090040160
    Abstract: A flat display and a method for modulating a clock signal for driving a flat display are provided. The flat display includes a clock generator and a clock modulator. The clock generator provides a clock signal that includes at least a first cycle waveform and a second cycle waveform following said first cycle waveform. The first cycle waveform is modulated by the clock modulator as a first modulated cycle waveform divided by a first positive modulated cycle waveform and a first negative modulated cycle waveform, and the second cycle waveform is modulated as a second modulated cycle waveform divided by a second positive modulated cycle waveform and a second negative modulated cycle waveform. The first positive modulated cycle waveform and the first negative modulated cycle waveform have a first duration difference, and the second positive modulated cycle waveform and the second negative modulated cycle waveform have a second duration difference different from the first duration difference.
    Type: Application
    Filed: January 4, 2008
    Publication date: February 12, 2009
    Inventors: Jian-Xun Jiang, Chih-Hsun Weng
  • Publication number: 20080284349
    Abstract: A backlight unit comprising a boost circuit and a backlight element. The boost circuit is coupled to a voltage source and controlled by a PWM signal and a switch signal. When the backlight unit operates in a normal mode, the boost circuit is supplied by the voltage source according to the PWM signal and the switch signal to drive the backlight element to emit light. When the backlight unit operates in a standby mode, the voltage source stops supplying the boost circuit according to the PWM signal and the switch signal, and the backlight element stops emitting light.
    Type: Application
    Filed: May 14, 2007
    Publication date: November 20, 2008
    Applicant: TPO DISPLAYS CORP.
    Inventor: Chih-Hsun Weng