Title:
LIQUID CRYSTAL DISPLAY DEVICE AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JP3826618
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a liquid crystal display device in which the light-shielding performance of a conductive light-shielding layer is improved and deterioration of the picture quality due to a current generated by leaking of light can be suppressed, and to provide a method for its production.
SOLUTION: In the liquid crystal display device, polycrystalline Si TFTs(thin film transistors) for driving pixel electrodes 31 are formed on a quartz glass substrate 11, and conductive light-shielding layers 27, 28 are formed at the position as an upper layer of the polycrystalline Si TFTs and as a lower layer of the pixel electrode 31. The conductive light-shielding layers 27, 28 are formed on a flattened interlayer insulating film 25. The interlayer insulating film 25 is flattened by CMP(chemical mechanical polishing) or the like.
Inventors:
Takuo Sato
Fumiaki Abe
Makoto Hashimoto
Fumiaki Abe
Makoto Hashimoto
Application Number:
JP13685799A
Publication Date:
September 27, 2006
Filing Date:
May 18, 1999
Export Citation:
Assignee:
ソニー株式会社
International Classes:
G02F1/1335; G09F9/30; G02F1/1343; G02F1/136; G02F1/1362; G02F1/1368; H01L29/786; (IPC1-7): G02F1/136; G02F1/1335; G09F9/30; H01L29/786
Domestic Patent References:
| JP10177190A | ||||
| JP11095261A | ||||
| JP9197390A | ||||
| JP9230319A | ||||
| JP9043639A | ||||
| JP5061067A | ||||
| JP6242453A |
Attorney, Agent or Firm:
Koichi Mori