Light valve device

(54) LIGHT VALVE DEVICE

(75) Inventors: Kenichi Kondo, Tokyo (JP); Kunihiro Takahashi, Tokyo (JP); Hiroaki Takasu, Tokyo (JP); Tsuneo Yamazaki, Tokyo (JP); Atsushi Sakurai, Tokyo (JP)

Correspondence Address:

Bruce L. Adams

Adams & Wilks

31st Floor

50 Broadway

New York, NY 10004 (US)

(73) Assignee: SEIKO INSTRUMENTS INC.

(21) Appl. No.: 09/931,843

(22) Filed: Aug. 17, 2001

Related U.S. Application Data

(62) Division of application No. 08/132,692, filed on Oct. 6, 1993, now Pat. No. 6,304,243.

(30) Foreign Application Priority Data

Oct. 12, 1992 (JP) 4-273023

Oct. 15, 1992 (JP) 4-277269

Oct. 19, 1992 (JP) 4-280326

Oct. 19, 1992 (JP) 4-280327

Nov. 6, 1992 (JP) 4-297195

Sep. 20, 1993 (JP) 5-233594

Publication Classification

(51) Int. CI.7 G09G 3/36

(52) U.S. C I 345/87

(57) ABSTRACT

An object of the present invention is to provide an improved structure of highly fine bight valve device.

On a quartz glass substrate 1 and a monocrystalline silicon thin film layer z bonded on the quartz glass substrate 2, are provided an X diving circuit 6 and a Y driving circuit 8 integrated by a very large scale integration process, driving electrodes 5 of a matrix type for conduction signals outputted from the X driving circuit 6 and the Y driving circuit 8, a transistor 9 and a display pixel electrode 10 arranged at a cross-section of the driving electrodes 5 of a matrix type, a control circuit 4 for supplying timing signals to the X driving circuit 6 and the Y driving circuit 8, and a display data generating circuit 3 for generating display data in order to display an image, and further a light source element driving circuit 19 for driving a light source element is provided thereon. A liquid crystal layer 16 is sealed in a gap between the first transparent substrate and the second transparent substrate with a sealing agent 15. The sealing agent 15 is composed of, for example, an adhesive resin which is stiffened by ultraviolet irradiation, and is supplied along a predetermined seal region 18. The present invention provides an improved enforced structure of the light valve device having high reliability, convenience to use, a very compact size, high density and high accuracy.