Liquid crystal cells – elements and systems – Particular excitation of liquid crystal – Electrical excitation of liquid crystal
Patent
1996-02-27
1999-08-10
Sikes, William L.
Liquid crystal cells, elements and systems
Particular excitation of liquid crystal
Electrical excitation of liquid crystal
G02F 11343
Patent
active
059366850
ABSTRACT:
A gate electrode is disposed on a transparent insulating substrate, a gate wiring is connected to the gate electrode, and source and drain electrodes are disposed on a semiconductor thin film which is disposed on the gate electrode interposing an insulating film formed on the gate electrode, thereby forming a thin film transistor. In an active matrix type liquid crystal display device using this thin film transistor, a transparent pixel electrode connected to the source electrode is formed on the insulating film, and in a region where a drain wiring is adjacent to the transparent pixel electrode, the drain wiring is disposed under the insulating film on which the transparent pixel electrode is formed, whereby a lateral direction electric field caused by the drain wiring is reduced and reverse tilt region due to the lateral direction electric field is narrowed. Therefore, a penetration of a disinclination to the transparent pixel electrode is controlled so that an increase in an opening ratio can be achieved.
REFERENCES:
patent: 5604358 (1997-02-01), Kim
Ito Masahiro
Ohi Susumu
Dudek James
NEC Corporation
Sikes William L.
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