Multilayered liquid crystal display with multiple black unit col

Details Multilayered liquid crystal display with multiple black unit col Multilayered liquid crystal display with multiple black unit col

1993-12-22

1995-05-09

Gross, Anita Pellman

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 79, 359 81, G02F 1133, G02F 11333, G02F 11339

Patent

active

054145457

ABSTRACT:
An improved liquid crystal display device which has a clear contrast and satisfactorily good manufacturing processes, includes a plurality of first electrodes which are placed in a predetermined pattern and determine multiple pixel area and a plurality of second electrodes which are provided to be opposingly placed apart in a predetermined interval therewith; a liquid crystal layer to be filled tip between the electrodes: one or more insulation layers are provided in the liquid crystal layer, for forming multiple liquid crystal layers; columns for fixing the location of the insulation layers in the liquid crystal layer; and a protective insulation layer for protecting the electrodes. In the liquid crystal display device, the columns are made of black-colored materials for absorbing external light and are composed of multiple unit columns sequentially disposed up and down, with the insulation layer inserted therebetween. The columns constituted by the unit columns are located in the area excluding pixel area in which the tipper and lower electrodes cross each other. Accordingly, a separate processing for the columns is not necessary but light-exposing process of a predetermined pattern is only added to form a cavity portion and a column portion during the dissolving process of a dissolution layer at one time.

REFERENCES:
patent: 3886014 (1975-05-01), Bayer
patent: 4581608 (1986-04-01), Aftergut et al.
patent: 4659182 (1987-04-01), Aizawa
patent: 4813770 (1989-03-01), Clerc et al.
patent: 4836652 (1989-06-01), Oishi et al.
patent: 4878741 (1989-11-01), Fergason
patent: 5113272 (1992-05-01), Reamey
patent: 5138473 (1992-08-01), Dijon et al.

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