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:
Sep. 20, 2011
Filed:
Nov. 06, 2008
Kazuteru Furuichi, Chounan, JP;
Masamitsu Miyata, Mobara, JP;
Hiroshi Nakamoto, Chiba, JP;
Hitachi Displays, Ltd., Chiba, JP;
Abstract
A light guiding plate is manufactured with high precision and in a short period of time in a backlight where light emitting diodes are provided on the side of the light guiding plate, even in the case where the light guiding plate is formed so as to have a spherical surface. In a liquid crystal display device having a backlight for illuminating a liquid crystal panel with light, LED's are provided in a light guiding plate in the backlight as a light emitting element, the light emitting portion of the light guiding plate is formed so as to have a spherical surface by applying heat and pressure to a resin in sheet form, and the light guiding plate is manufactured by fusing a light entering portion formed of a resin through injection molding with the light emitting portion.