The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 06, 2002
Filed:
Jan. 10, 2000
Wei-Shiau Chen, Chin-Men Hsien, TW;
Kao-Su Huang, Tainan Hsien, TW;
United Microelectronics Corp., Hsinchu, TW;
Abstract
A multi-layered thin film protective layer structure, which is applicable for a liquid crystal display with a substrate comprising a peripheral circuit area and a pixel cell area, is described. The pixel cell area and the peripheral circuit area comprise a plurality of pixel cells and metal layers, respectively. The multi-layered thin film protective layer also includes a protective layer in the peripheral circuit area to cover the metal layers and a plurality of pad spacers in the pixel cell area and the peripheral circuit area. The pad spacers are higher than the first protective layer. The structure also comprises a second protective layer in the pixel cell area to cover the pixel cells, wherein the second protective layer has a higher reflectivity to allow the transmission of light to reach the pixel cells and a reflection of light.