Liquid crystal display with pixels having an opening formed from

Details Liquid crystal display with pixels having an opening formed from Liquid crystal display with pixels having an opening formed from

1997-11-24

2000-06-20

Malinowski, Walter

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

349156, 349187, G02F 11339

Patent

active

060783788

ABSTRACT:
A method for controlling the cell gap of a liquid crystal display device is disclosed. A photo-sensitive polymer layer is coated over a substrate on which color filter, ITO and black matrix of the liquid crystal display device are formed. Spacers are uniformly sprayed and adhered on the photo-sensitive polymer. With a negative-type photo-polymer, a photo-mask can be used to expose the area of photo-sensitive polymer layer covering the the black matrix. The masked area is exposed, developed and removed by a conventional photo-lithographic process. The spacers attached to the masked area are also removed. The size of the spacers attached on the polymer above the thin-film transistors and the black matrix controls the cell gap.

REFERENCES:
patent: 5539546 (1996-07-01), Koden et al.
patent: 5546208 (1996-08-01), Shimizu et al.
patent: 5643471 (1997-07-01), Onishi et al.

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