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:
Jul. 12, 2016

Filed:

Jul. 10, 2014
Applicant:

Jvc Kenwood Corporation, Yokohama-shi, JP;

Inventors:

Naoto Hirohata, Yokohama, JP;

Yasuhiro Ueki, Yokohama, JP;

Nobuyoshi Yamagishi, Yokohama, JP;

Takuya Kakinuma, Yokohama, JP;

Mikio Okumura, Yokohama, JP;

Assignee:

JVC KENWOOD Corporation, Yokohama-shi, JP;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F21V 7/04 (2006.01); F21V 8/00 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0085 (2013.01); G02B 6/0038 (2013.01); G02B 6/0068 (2013.01); G02B 6/0073 (2013.01); G02B 6/0091 (2013.01);
Abstract

A backlight device wherein LEDs which are arranged side by side at a first arrangement interval (P1) are provided to each LED unit. The LED units are mounted to a flexible board at a second arrangement interval. A light guide plate is disposed in such a manner that an end surface thereof is spaced from the LEDs by a distance (H). The light guide plate is disposed so as to satisfy the following relationship: first arrangement interval (P1)<distance (H)<second arrangement interval (P2). Specifically, the LEDs are arranged side by side in such a manner that the first arrangement interval (P1) is not less than 0.1 mm but not greater than 3 mm and the second arrangement interval (P2) is not less than 5 mm but not greater than 15 mm. The light guide plate is disposed in such a manner that the distance (H) is not less than 1 mm but not greater than 7 mm.


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