Spatial light modulator with photoconductor of hydrogenated amor

Details Spatial light modulator with photoconductor of hydrogenated amor Spatial light modulator with photoconductor of hydrogenated amor

1993-06-15

1995-08-22

Gross, Anita Pellman

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

G02F 1135

Patent

active

054445582

ABSTRACT:
A spatial light modulator capable of displaying a good contrast and high resolution moving pictures without an after-image effect is disclosed. The modulator comprises a pair of transparent electrodes for generating an electric field therebetween and at least a photoconductive member and a photo modulation member being laminated and interposed between the transparent electrodes, the photoconductive member is a film having a thickness ranged from 10 .mu.m to 30 .mu.m and is made of hydrogenated amorphous silicon doped with boron such that an amount of the boron with respect to silicon in the hydrogenated amorphous silicon in atomic percent is, 0.1 to 1.0 ppm. To enhance the modulator performance, a thickness of the photoconductive member is so selected to have light absorptance ranged 70% to 95% at a wavelength of a writing light which writes information in the modulator.

REFERENCES:
patent: 4289822 (1981-09-01), Shimada et al.
patent: 4925276 (1990-05-01), McMurray, Jr. et al.
patent: 4960662 (1990-10-01), Nishikawa et al.
patent: 5056897 (1991-10-01), Akiyama et al.
patent: 5182624 (1993-01-01), Tran et al.
patent: 5231282 (1993-07-01), Nishi et al.
patent: 5233450 (1993-08-01), Hatano et al.
patent: 5235195 (1993-08-01), Tran et al.
patent: 5262262 (1993-11-01), Yagi et al.
patent: 5272554 (1993-12-01), Ji et al.
patent: 5273910 (1993-12-01), Tran et al.
patent: 5353139 (1994-10-01), Ohkouchi et al.
Ashley et al, "Amorphous Silicon Photoconductor in a Liquid Crystal Spatial Light Modulator", Applied Optics, vol. 26, No. 2 (Jan. 1987), pp. 241-246.
Preprint for the 51st Meeting (1990) of the Japan Society of Applied Physics, p. 743, a paper 29a-MF-2 is introduced, by Hatano et al.
Preprint for the 17th Liquid Crystal Panel Discussion (1991) under the joint auspices of the Japan Society of Applied Physics the Society of Polymer Science, Japan, and the Chemical Society of Japan, a paper 4F108 is introduced.

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