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 10996517 B1

PDF
Full Text
Expired
Date of Patent:
May. 04, 2021

Filed:

Feb. 11, 2018
Applicants:

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

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

Inventors:

Fei Wang, Beijing, CN;

Xiandong Meng, Beijing, CN;

Meili Wang, Beijing, CN;

Huijuan Wang, Beijing, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/13357 (2006.01); G02F 1/1335 (2006.01);
U.S. Cl.
CPC ...
G02F 1/133621 (2013.01); G02F 1/133602 (2013.01); G02F 1/133607 (2021.01); G02F 1/133613 (2021.01); G02F 2201/30 (2013.01);
Abstract

A backlight includes a plurality of light sources of at least three different colors disposed on a base substrate, and a plurality of grating units that are disposed on a light exit side of the plurality of light sources and are in one-to-one correspondence with the plurality of light sources. Each of the plurality of grating units is used for splitting light emitted by a corresponding one of the plurality of light sources to form in an array of uniformly distributed monochromatic spots, so that the backlight may form an array of colored spots in which at least three different colors of light spots are alternately arranged in sequence along a first direction, wherein the first direction is a row direction or a column direction of the array of colored spots.


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