Patents by Inventor Chihhong LIU

Chihhong LIU 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).

  • Method for improving the reflectivity of aluminum in OLED structure
    Patent number: 9437836
    Abstract: The present disclosure discloses a method for improving the reflectivity of aluminum in OLED structure. The OLED structure includes a top ITO layer, a middle reflective layer made by aluminum and a bottom ITO layer. The method comprises; forming a bottom ITO layer; coating the aluminous reflective layer on the surface of the bottom ITO layer and forming an aluminum oxide layer on the surface of the aluminous reflective layer uniformly by introducing plenty of oxygen gas simultaneously; adjusting the velocity of coating the aluminous reflective until the aluminum oxide layer is formed; and forming an top ITO layer on the surface of the aluminum oxide layer. The present disclosure can repair and cover the defects on the surface of the metal aluminum film and can reduce the concavities and hillocks on the surface of the metal aluminum film. Consequently, the reflectivity of aluminum in OLED structure is improved.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: September 6, 2016
    Assignee: EVERDISPLAY OPTRONICS (SHANGHAI) LIMITED
    Inventors: Chenghsien Wang, Chihhong Liu
  • METHOD FOR IMPROVING THE REFLECTIVITY OF ALUMINUM IN OLED STRUCTURE
    Publication number: 20140295596
    Abstract: The present disclosure discloses a method for improving the reflectivity of aluminum in OLED structure. The OLED structure includes a top ITO layer, a middle reflective layer made by aluminum and a bottom ITO layer. The method comprises; forming a bottom ITO layer; coating the aluminous reflective layer on the surface of the bottom ITO layer and forming an aluminum oxide layer on the surface of the aluminous reflective layer uniformly by introducing plenty of oxygen gas simultaneously; adjusting the velocity of coating the aluminous reflective until the aluminum oxide layer is formed; and forming an top ITO layer on the surface of the aluminum oxide layer. The present disclosure can repair and cover the defects on the surface of the metal aluminum film and can reduce the concavities and hillocks on the surface of the metal aluminum film. Consequently, the reflectivity of aluminum in OLED structure is improved.
    Type: Application
    Filed: January 14, 2014
    Publication date: October 2, 2014
    Applicant: EverDisplay Optronics (Shanghai) Limited
    Inventors: Chenghsien WANG, Chihhong LIU