Liquid crystal display device with improved transmittance and me

Details Liquid crystal display device with improved transmittance and me Liquid crystal display device with improved transmittance and me

1997-11-19

1999-06-22

Sikes, William L.

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

349 33, 349 38, 349143, 349139, G02F 11343, G02F 1133

Patent

active

059147628

ABSTRACT:
Disclosed is a liquid crystal display device improved transmittance and aperture ratio. The liquid crystal display device comprises a lower substrate, an upper substrate facing the lower substrate, and a liquid crystal interposed between the lower and upper substrate. A gate bus line and a data bus line is formed on the lower substrate in a matrix arrangement to define unit cell region. A thin film transistor is located near intersection of the gate bus line and the data bus line, for switching a signal inputted from the data bus line according to voltage applied to the gate bus line. A counter electrode is located inside unit cell region, for driving the liquid crystal, has a plurality of branches arranged parallel to each other and separated by a selected distance. A pixel electrode is connected to the thin film transistor to drive the liquid crystal together with the counter electrode and includes a plurality of slots for exposing the branches of the counter electrode. The counter electrode and the pixel electrode are formed out of a transparent conductive material. Also, the counter electrodes and the pixel electrodes are electrically insulated.

REFERENCES:
patent: 4952031 (1990-08-01), Tsunoda et al.
patent: 5414545 (1995-05-01), Lee
patent: 5426313 (1995-06-01), Sukegawa et al.
patent: 5434690 (1995-07-01), Hisatake et al.
patent: 5576867 (1996-11-01), Baur et al.
patent: 5598285 (1997-01-01), Kondo et al.
patent: 5600464 (1997-02-01), Ohe et al.
patent: 5745207 (1998-04-01), Asada et al.

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