Claims
- 1. An image projection system comprising:
- a light source;
- a light valve device for guiding a light emanating from the light source, the light valve device comprising a drive substrate having drive electrodes and drive circuits for exciting the drive electrodes in response to predetermined signals, an opposed substrate arranged opposite to the drive substrate, and an electrooptical substance layer arranged between the drive substrate and the opposed substrate, wherein the drive substrate includes a transparent insulating thin film layer, a single crystal semiconductor thin film layer formed over the transparent insulating thin film layer, and a light shielding layer formed at that surface of the transparent insulating layer which is opposed to the side of the single crystal semiconductor thin film layer, wherein the drive circuits include transistor elements formed in the transparent insulating thin film layer, wherein the light shielding layer covers the active portions of the transistor elements, and wherein the drive electrodes are integrally arranged on the single crystal thin film layer and electrically connected with the drive circuits so that they are excited by the drive circuits to act upon the electrooptical substance layer to thereby control the optical transparency thereof; and
- an optical lens for magnifying and projecting an image on the light valve device.
Priority Claims (5)
Number |
Date |
Country |
Kind |
2-309437 |
Nov 1990 |
JPX |
|
3-6501 |
Jan 1991 |
JPX |
|
3-22420 |
Feb 1991 |
JPX |
|
3-79330 |
Apr 1991 |
JPX |
|
3-79337 |
Apr 1991 |
JPX |
|
Parent Case Info
This is a division of application Ser. No. 08/264,635 filed Jun. 23, 1994, now U.S. Pat. No. 5,486,708, which is a division of application Ser. No. 07/791,912, filed Nov. 13, 1991, now U.S. Pat. No. 5,347,154.
US Referenced Citations (10)
Foreign Referenced Citations (16)
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0164646 |
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EPX |
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EPX |
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DEX |
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Feb 1979 |
DEX |
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JPX |
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JPX |
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Dec 1984 |
JPX |
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Jul 1985 |
JPX |
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Jan 1987 |
JPX |
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Apr 1988 |
JPX |
63-101831 |
May 1988 |
JPX |
0149257 |
Feb 1989 |
JPX |
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JPX |
2154232 |
Jun 1990 |
JPX |
319370 |
Jan 1991 |
JPX |
2206445 |
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GBX |
Non-Patent Literature Citations (4)
Entry |
IEEE Transactions on Electron Devices, vol. 37, No. 1, Jan. 1990, pp. 121-127, "A Laser-Recrystallization . . . LCD's". |
Japanese Journal of Applied Physics, vol. 29, No. 4, part 2, Apr. 1990, pp. L521-L523, "Experimental Fabrication . . . Silicon Films". |
Fujitsu Scientific and Technical Journal, vol. 24, No. 4 + index, Dec. 1988, pp. 408-417, "SOI-Device on Bonded Wafer". |
Journal of the Electromechanical Society, vol. 120, No. 11, Nov. 1973, pp. 1563-1566, "Thin Silicon Film on Insulating Substrate". |
Divisions (2)
|
Number |
Date |
Country |
Parent |
264635 |
Jun 1994 |
|
Parent |
791912 |
Nov 1991 |
|