Liquid crystal cells – elements and systems – Particular excitation of liquid crystal – Electrical excitation of liquid crystal
Patent
1995-12-04
1999-09-21
Sikes, William L.
Liquid crystal cells, elements and systems
Particular excitation of liquid crystal
Electrical excitation of liquid crystal
349122, 257 72, G02F 1136
Patent
active
059561050
ABSTRACT:
An electro-optical device including a substrate having an insulating surface and at least one thin film transistor formed on the insulating surface, wherein the thin film transistor includes a semiconductor film. An interlayer insulating film including an inorganic material is provided over the thin film transistor. A leveling film including an organic resin is formed over the substrate and covers the thin film transistor. The leveling film is prevented from directly contacting the semiconductor film by the interlayer insulating film formed over the semiconductor film. A pixel electrode is formed on the leveling film and is directly connected to the semiconductor film of the thin film transistor through an opening provided in the leveling film, wherein an edge of the organic resin film at a periphery of the opening is round.
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Hiroki Masaaki
Mase Akira
Takemura Yasuhiko
Yamazaki Shunpei
Duong Tai V.
Ferguson, Jr. Gerald J
Robinson Eric J
Semiconductor Energy Laboratory Co,. Ltd.
Sikes William L.
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