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.:

US 6692134 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 17, 2004

Filed:

Jul. 02, 2002
Applicant:
Inventors:

Kou Ohwada, Fukushima-ken, JP;

Hideaki Nagakubo, Fukushima-ken, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D 1/128 ;
U.S. Cl.
CPC ...
G01D 1/128 ;
Abstract

A front light includes a bar-shaped light source, and a light guide panel that introduces light from the light source through an end face and emits the light from an emergent surface. The light source is supported at an end of the light guide panel by a cover member disposed so as to cover the light source and a part of the light guide panel. Protuberances are formed on the inner surface of the cover member, and the light guide panel is grasped via the protuberances. The light guide panel is positioned in the widthwise direction by projecting pieces extending from both sides of the cover member.


Find Patent Forward Citations

Ohwada, Kou. (2004). Surface-emitting device precisely positioned in the front of liquid crystal display unit, and liquid crystal display device having the surface-emitting device (U.S. Patent No. 6692134). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6692134

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…