Liquid crystal display device having a compensation layer and me

Details Liquid crystal display device having a compensation layer and me Liquid crystal display device having a compensation layer and me

1996-02-29

1996-11-12

Sikes, William L.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 81, 359 87, G02F 11333

Patent

active

055745830

ABSTRACT:
A liquid crystal display device including a compensation layer or dummy pattern provided at a region where transparent electrode films formed on upper and lower glass plates are not overlapped with each other, the compensation layer or dummy pattern having a thickness substantially corresponding to the thickness of one transparent electrode film and serving to provide a uniform cell gap, thereby capable of achieving an improvement in display quality. The compensation layer is made of an Si0.sub.2 based material and formed on a region where the transparent electrode films are not overlapped with each other by use of an offset roll coating process, before or after a formation of a top coating film disposed on the transparent electrode films, the compensation layer having the same thickness as the transparent electrode films. The compensation layer removes the duality of color caused by the cell gap difference between the region where the transparent electrode films are overlapped with each other and the region where the transparent electrode films are not overlapped with each other, and thereby achieve an improvement in display quality.

REFERENCES:
patent: 3966305 (1976-06-01), Young
patent: 4725517 (1988-02-01), Nakanowateri et al.
patent: 4854675 (1989-08-01), Yamazaki et al.

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