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:
Dec. 21, 2010
Filed:
Sep. 08, 2008
Yoshiaki Takahashi, Chiba, JP;
Masayuki Mifune, Mobara, JP;
Ken Kagabu, Ichinomiya, JP;
Hidehiro Hanada, Ichihara, JP;
Nobuyuki Suzuki, Isumi, JP;
Yoshiaki Takahashi, Chiba, JP;
Masayuki Mifune, Mobara, JP;
Ken Kagabu, Ichinomiya, JP;
Hidehiro Hanada, Ichihara, JP;
Nobuyuki Suzuki, Isumi, JP;
Hitachi Displays, Ltd., Chiba-ken, JP;
Hitachi Display Devices, Ltd., Chiba-ken, JP;
Abstract
In a backlight which arranges light emitting diodes on a side surface of a light guide plate, even when the light emitting diodes having a thickness larger than a thickness of the light guide plate are used, it is possible to manufacture the light guide plate with high accuracy by injection molding. In a liquid crystal display device having a backlight which radiates light to a liquid crystal panel, LEDs are mounted on the light guide plate formed on the backlight as a light emitting element, and an S-shaped inclined portion whose thickness is not changed is formed on the light guide plate from a light incident surface to a light emitting surface of the light guide plate. Since the thickness of the inclined portion is not changed, it is possible to make the pressure of resin flow at the time of performing injection molding uniform thus manufacturing the light guide plate with high accuracy.