Liquid crystal display having liquid crystal layers alternately

Details Liquid crystal display having liquid crystal layers alternately Liquid crystal display having liquid crystal layers alternately

1993-05-10

1995-10-31

Gross, Anita Pellman

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 79, 359 68, G02F 11333, G02F 11335

Patent

active

054634814

ABSTRACT:
An LCD having quick response time and sharp contrast provides for a dense white display when using a reflective-type LCD and the desired color density when using a backlight. This LCD is made up of a plurality of field-effect type liquid crystal layers alternately stacked with light-transmitting electrically insulating material layers. The thickness of each liquid crystal layer is desirably less than 3 .mu.m, and that of each electrically insulating material layer is desirably less than 5 .mu.m. The electrically insulating material employs a semiconductor, a metal oxide, or a light-transmitting electrically insulating resin including epoxy resin and acryl resin. The field-effect type LCD is desirably a nematic, phase-transition or ferroelectric type LCD. The total thickness of the LCD is desirably more than 1 .mu.m. A manufacturing method of the LCD and a display apparatus using the LCD are also provided, for use in large-screen display, televisions, personal computers, timepieces or pocket calculator screens.

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patent: 3886014 (1975-05-01), Bayer
patent: 4581608 (1986-04-01), Aftergut et al.
patent: 4659182 (1987-04-01), Aizawa
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patent: 4886343 (1989-12-01), Johnson
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patent: 5221978 (1993-06-01), Heynderickx et al.
patent: 5248576 (1993-09-01), Yokoyama et al.
patent: 5276538 (1994-01-01), Monji et al.

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