The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 13, 2001
Filed:
Dec. 21, 1999
Hideharu Nakajima, Kanagawa, JP;
Toyoharu Oohata, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A liquid crystal light valve includes a first substrate having a function element and an orientation film formed on a first base, a second substrate having an opposed electrode and an orientation film formed on a second base opposed to the first substrate, a spacer disposed at a predetermined position between the first substrate and the second substrate, a liquid crystal layer filled between the first substrate and the second substrate, and a light shielding area provided on an incident light side from end portion of the spacer located to the second substrate side, in which at least a part of outer periphery of a two-dimensional shape, which is obtained by projection a section of the spacer perpendicular to the optical axis of the incident light in at least a part of height in the optical axis direction of the incident light on the light shielding area in parallel to the optical axis, is contained in the light shielding area. As a result, a light leak due to liquid crystal molecules located near the pillar-shaped spacer and disturbed in orientation can be prevented and hence the contrast can be increased.