Patents by Inventor Hwan-sang Roh

Hwan-sang Roh 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).

  • Response time accelerator and method for driving liquid crystal display
    Patent number: 7400311
    Abstract: A response time accelerator and method for driving a liquid crystal display (LCD) are provided. According to the response time accelerator for driving an LCD, an acceleration unit reads previous data Pn?1 corresponding to input current data Pn from a frame memory unit that updates and stores one or more frames of previous data Pn?1. The acceleration unit then reads predetermined mapped panel output value TPO, predetermined mapped panel characteristic value TpPn, and flag information corresponding to the previous data Pn?1 and current data Pn from a table memory unit that stores predetermined mapped panel output values TPOs, predetermined mapped panel characteristic values TpPns, and flag information corresponding to the predetermined mapped panel characteristic values TpPns, and decodes the read information.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: July 15, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seok-joon Park, Hwan-sang Roh, Yong-joon Jung, Kwang-whui Cho, Yong-in Han, Gwang-sun Lee
  • Response time accelerator and method for driving liquid crystal display
    Publication number: 20040090407
    Abstract: A response time accelerator and method for driving a liquid crystal display (LCD) are provided. According to the response time accelerator for driving an LCD, an acceleration unit reads previous data Pn−1 corresponding to input current data Pn from a frame memory unit that updates and stores one or more frames of previous data Pn−1. The acceleration unit then reads predetermined mapped panel output value TPO, predetermined mapped panel characteristic value TpPn, and flag information corresponding to the previous data Pn−1 and current data Pn from a table memory unit that stores predetermined mapped panel output values TPOs, predetermined mapped panel characteristic values TpPns, and flag information corresponding to the predetermined mapped panel characteristic values TpPns, and decodes the read information.
    Type: Application
    Filed: October 30, 2003
    Publication date: May 13, 2004
    Applicant: Samsung Electronics Co. Ltd.
    Inventors: Seok-Joon Park, Hwan-Sang Roh, Yong-Joon Jung, Kwang-Whui Cho, Yong-In Han, Gwang-Sun Lee