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:
Dec. 12, 2017

Filed:

Jul. 16, 2015
Applicants:

Boe Technology Group Co., Ltd., Beijing, CN;

Beijing Boe Chatani Electronics Co., Ltd., Beijing, CN;

Inventor:

Tianlong Li, Beijing, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 7/04 (2006.01); F21V 8/00 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0053 (2013.01); G02B 6/0051 (2013.01); G02B 6/0083 (2013.01);
Abstract

A backlight module and a display device are disclosed. The backlight module comprises a lamp group; at least one prism sheet having a first edge near a side of the lamp group; a light shielding sheet having an inner edge corresponding to the side of the lamp group for defining a light emitting region of the backlight module. A distance between the first edge of the prism sheet and the lamp group is greater than or equal to a distance between the inner edge of the light shielding sheet and the lamp group. A light leakage in front of the lamps is improved effectively by increasing the distance between the prism sheet and lamp group, so that light intensity of light emitted from the lamp group is reduced upon reaching the prism sheet.


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