Reflective LCD having a particular scattering means

Details Reflective LCD having a particular scattering means Reflective LCD having a particular scattering means

1997-09-04

2000-01-25

Sikes, William L.

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

349113, 349158, G02F 11335, G02F 11333

Patent

active

060183799

ABSTRACT:
In a reflective liquid crystal display comprising a first insulative plate having a reflector, a second insulative plate having a transparent electrode, and a liquid crystal layer sandwiched between the reflector and the transparent electrode, a convex-concave surface is provided at the side of the second insulative plate. With this arrangement, a desired light scattering characteristics is realized with a high image quality and a high brightness, with neither a fuzziness of displayed characters nor a double image. On the other hand, since no thin film transistor is formed at the side of the second insulative plate, the convex-concave surface can be simply formed with no necessity of depositing an insulating film covering the thin film transistor and patterning the deposited insulating film.

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Office Action dated Mar. 9, 1999 for Japanese counterpart application along with English language translation of Japanese Examiner's comments.
T. Koizumi et al., "Reflective Multicolor LCD(II): Improvement in the Brightness"; Proceedings of the SID, vol. 29/2, 1988, pp. 157-160.
S. Mitsui et al., "Late-News Paper: Bright Reflective Multicolor LCDs Addressed by a Si TFTs", SID 92 Digest, pp. 437-440.
N. Kimura et al., "Development of Reflective Multicolor LCD", Sharp Technicolor Report, No. 56, Jun. 1993, pp. 27-30.

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