Patents by Inventor Hsien-hua Li

Hsien-hua Li 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).

  • Process for repairing defect applied in liquid crystal display
    Patent number: 6459070
    Abstract: A process is provided for repairing a defect applied in producing a liquid crystal display, wherein the liquid crystal display includes a repair circuit structure, and at least one color filter and a liquid crystal formed on a front thereof. The process includes steps of (a) providing a laser having a wavelength of infrared spectrum, and (b) welding the repair circuit from a back of the liquid crystal display by the laser to repair the defect.
    Type: Grant
    Filed: February 13, 2001
    Date of Patent: October 1, 2002
    Assignee: Hannastar Display Corp.
    Inventors: Jia-Shyong Cheng, Shou-Jen Chang, Hsien-Hua Li
  • Method for preventing corrosion of metal lines
    Patent number: 6436727
    Abstract: A method for preventing the corrosion of metal lines without increasing production costs or changing the conditions of the LCD manufacturing process. According to this method, at least one passivation layer and at least one semiconductor layer are formed on a predetermined area at the edge of the CF to prevent vapor or other corrosive material from permeating the metal lines. Therefore, the metal lines will not be broken or suffer conductivity degradation, since no corrosion occurs, thus significantly increasing the reliability of LCDs.
    Type: Grant
    Filed: July 23, 2001
    Date of Patent: August 20, 2002
    Assignee: Hannstar Display Corp.
    Inventor: Hsien-hua Li
  • Method for preventing corrosion of metal lines
    Publication number: 20020048832
    Abstract: A method for preventing the corrosion of metal lines without increasing production costs or changing the conditions of the LCD manufacturing process. According to this method, at least one passivation layer and at least one semiconductor layer are formed on a predetermined area at the edge of the CF to prevent vapor or other corrosive material from permeating the metal lines. Therefore, the metal lines will not be broken or suffer conductivity degradation, since no corrosion occurs, thus significantly increasing the reliability of LCDs.
    Type: Application
    Filed: July 23, 2001
    Publication date: April 25, 2002
    Applicant: Hannstar Display Corp.
    Inventor: Hsien-hua Li
  • Process for repairing defect applied in liquid crystal display
    Publication number: 20020027128
    Abstract: A process is provided for repairing a defect applied in producing a liquid crystal display, wherein the liquid crystal display includes a repair circuit structure, and at least one color filter and a liquid crystal formed on a front thereof. The process includes steps of (a) providing a laser having a wavelength of infrared spectrum, and (b) welding the repair circuit from a back of the liquid crystal display by the laser to repair the defect.
    Type: Application
    Filed: February 13, 2001
    Publication date: March 7, 2002
    Inventors: Jia-Shyong Cheng, Shou-Jen Chang, Hsien-Hua Li