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:
Jan. 28, 2003
Filed:
Sep. 26, 2000
Tomoo Miwa, Tokyo, JP;
NEC Corporation, , JP;
Abstract
A liquid crystal display device has a light source lamp, an optical guide plate for guiding light emitted from the light source lamp, a liquid crystal display panel provided on the optical guide plate, and a frame body for integrating the light source lamp, the optical guide plate and the liquid crystal display panel. The optical guide plate has a rectangular plate-shaped base portion, a rectangular plate-shaped projection projecting from an edge of the base portion, a width expanded portion provided at a corner between the base portion and a farther side of the projection from the side of light source lamp. The projection projects in the direction perpendicular to the direction of the advancing direction of the light in the base portion and parallel to the plate surface of the base portion. The width of the width expanded portion progressively increases toward the light source lamp. The frame body has a recessed portion to which the projection and the width expanded portions engage.