Patents by Inventor Han-Jon Ho

Han-Jon Ho 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: 8154491
    Abstract: An overdrive method for anti-double edge of LCD uses: a register unit, a signal processing module including a selection unit and a driving-voltage lookup table (ADE LUT) and a plurality of multiplex processing units to effectively save the resources of hardware and to eliminate the double edge phenomenon generated during overdrive liquid-crystal image developing by selecting among present frame driving-voltage values, overdrive voltage values and actually achieved voltage values input from the driving-voltage lookup table and by outputting driving-voltage values suitable for respective situations according to selection signals of a selection unit by the multiplex processing units. The method is added with a complementary table and an operation unit to increase its scope of application, to eliminate double edge generated by different response speeds; and thereby is suitable for various liquid crystal displays.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: April 10, 2012
    Assignee: VastView Technology Inc.
    Inventors: Han-Jon Ho, Chun-Chi Chen
  • Publication number: 20090073159
    Abstract: An overdrive method for anti-double edge of LCD uses: a register unit, a signal processing module including a selection unit and a driving-voltage lookup table (ADE LUT) and a plurality of multiplex processing units to effectively save the resources of hardware and to eliminate the double edge phenomenon generated during overdrive liquid-crystal image developing by selecting among present frame driving-voltage values, overdrive voltage values and actually achieved voltage values input from the driving-voltage lookup table and by outputting driving-voltage values suitable for respective situations according to selection signals of a selection unit by the multiplex processing units. The method is added with a complementary table and an operation unit to increase its scope of application, to eliminate double edge generated by different response speeds; and thereby is suitable for various liquid crystal displays.
    Type: Application
    Filed: November 26, 2008
    Publication date: March 19, 2009
    Inventors: Han-Jon HO, Chun-Chi CHEN
  • Publication number: 20060132470
    Abstract: An overdrive method for anti-double edge uses: a register unit, a signal processing module including a selection unit and a driving-voltage lookup table (ADE LUT) and a plurality of multiplex processing units to effectively save the resources of hardware and to eliminate the double edge phenomenon generated during overdrive liquid-crystal image developing by selecting among present frame driving-voltage values, overdrive voltage values and practically-obtained voltage values input from the driving-voltage lookup table and by outputting driving-voltage values suitable for respective situations according to selection signals of a selection unit by the multiplex processing units. The method is added with a complementary table and an operation unit to increase its scope of application, to eliminate double edge generated by different reaction speeds; and thereby is suitable for various liquid crystal displays.
    Type: Application
    Filed: December 20, 2004
    Publication date: June 22, 2006
    Inventors: Han-Jon Ho, Chun-Chi Chen
  • Publication number: 20060082602
    Abstract: A color display system comprises a color signal source, a buffer unit, a storage unit, an enlarging module, a comprising unit, and a multi-functional comparing unit. By the multi-functional comparing unit comparing an OD enlarged value of the enlarging module, a grayscale of the color signal source, and a signal for OD technique free of the comparing unit and then submitting a result, either the grayscale of the now-frame or the OD enlarged value, the color display system can fast and accurate response and display grayscales of colors. The color display system is applicable to use for LCD (liquid crystal display), PDP (Plasma Display Panel), TFT, OLED (Organic Electro Luminesence Display), and PLED (Polymer OLED).
    Type: Application
    Filed: October 18, 2004
    Publication date: April 20, 2006
    Inventors: Yuh-Ren Shen, Han-Jon Ho, Chang-Cheng Lin, Cheng-Jung Chen
  • Publication number: 20050231492
    Abstract: A method of signal processing to deal with said gray-scale response speed of brightness of a screen panel by measuring voltage measured values for over driving (called shortly as OD measured values), making tables of the OD measured values, then obtaining four corresponding tables of OD shrunk values from the above tables of the OD measured values by a mode of shrinking, and obtaining OD enlarged values by using a functional operation equation. The method suits a color display device such as an LCD panel; a plasma television set (PDP), a display of a thin film transistor (TFT) or an organic light emitting diode (OLED or PLED).
    Type: Application
    Filed: March 7, 2005
    Publication date: October 20, 2005
    Inventors: Yuh-Ren Shen, Han-Jon Ho, Chang-Cheng Lin, Cheng-Jung Chen