Active matrix polymer dispersed liquid crystal display device wi

Details Active matrix polymer dispersed liquid crystal display device wi Active matrix polymer dispersed liquid crystal display device wi

1994-10-03

1997-05-13

Crane, Sara W.

Liquid crystal cells, elements and systems

Particular structure

Particular illumination

349 89, 349116, 349 72, G02F 11335, G02F 113, G02F 1135

Patent

active

056297831

ABSTRACT:
A liquid crystal device includes a TFT or active element substrate on which TFTs and pixel electrodes are arranged in the form of a matrix, a counter substrate having a counter electrode formed thereon and arranged to oppose the active element substrate, a polymer dispersed liquid crystal layer arranged between the active element substrate and the counter substrate and having a polymer resin and a liquid crystal which are dispersed, and a fluorescent film arranged on the pixel electrode. The device displays an image by controlling scattering, absorption, and transmission of light passing through the polymer dispersed liquid crystal layer. The phosphor film converts part of supplied light into fluorescent light having a predetermined wavelength and outputs colored light. Light used for a display is increased in intensity by the fluorescent light emitted from the phosphor film, thereby displaying a bright image.

REFERENCES:
patent: 3998526 (1976-12-01), Katz
patent: 4577098 (1986-03-01), Ogawa
patent: 4684939 (1987-08-01), Streit
patent: 4688900 (1987-08-01), Doane et al.
patent: 5146355 (1992-09-01), Prince et al.
patent: 5394256 (1995-02-01), Yamada et al.
patent: 5477359 (1995-12-01), Okazaki
*English language abstract only. Feinwerktechnik + Messtechnik, vol. 98, No. 1/2, Jan., 1990 Muenchen, De, pp. 17-19, J. Borst, "LCID--Eine Neue, Flussigkristallanzeige".
Fluorescence Activated LCD Feb. 23, 1977 G. Baur and W. Greubel.

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