Patents by Inventor Wen-Jeng Lang

Wen-Jeng Lang 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: 20070052354
    Abstract: An organic electroluminescent (OEL) display device with color level enhancement is provided. The OEL display device includes a plurality of pixels on a substrate. Each of the pixels comprises a first color filter layer, a first electrode, a first OEL layer, a second OEL layer and a second electrode. The color filter layer includes a first, a second, a third and a fourth photo resist. The first OEL layer is disposed on the vertically extended position of the first, the second and the fourth photo resist. The second OEL layer is disposed on the vertically extended position of the second, the third and the fourth photo resist.
    Type: Application
    Filed: August 24, 2006
    Publication date: March 8, 2007
    Inventors: Joel Chang, Chih-Ming Chin, Sheng-Hsu Shih, Wen-Jeng Lang, Chien-Chih Chiang