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.

Date of Patent:
Apr. 07, 2015

Filed:

Dec. 15, 2011
Applicant:

Mitsuru Hosoki, Osaka, JP;

Inventor:

Mitsuru Hosoki, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 8/00 (2006.01); G02F 1/1335 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0068 (2013.01); G02B 6/0091 (2013.01); G02B 6/0073 (2013.01); G02B 6/0088 (2013.01); G02F 1/133615 (2013.01); G02F 2201/50 (2013.01); G02F 2203/60 (2013.01);
Abstract

The backlight deviceaccording to the present invention is provided with: an LED substrate; an LED light source; a light guide platehaving a light entrance surfaceon a side surface; a chassishaving a bottom plate and a side plate; and spacer members that regulate the distance between the side plate and the light guide plate. The side plate has three first side platesandon the surface of which an LED substrateis arranged, and one second side plateon the surface of which the LED substrateis not arranged. The spacer members have an elastic spacer memberand a non-elastic spacer member. The space between the first side platethat is opposite the second side plate, across the light guide plate, and the light guide plateis regulated by the non-elastic spacer member. The space between the other side platesandand the light guide plateis regulated by the elastic spacer member


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