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. 03, 2024

Filed:

Nov. 16, 2021
Applicants:

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

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

Inventors:

Qiaoke Zhou, Beijing, CN;

Zhanchang Bu, Beijing, CN;

Bochang Wang, Beijing, CN;

Xiang Li, Beijing, CN;

Bo Li, Beijing, CN;

Jing Wang, Beijing, CN;

Hui Guo, Beijing, CN;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F21V 8/00 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0053 (2013.01); G02B 6/0036 (2013.01); G02B 6/0086 (2013.01);
Abstract

Disclosed are a backlight module and a display device. The backlight module includes a backplate, a led-bar, a light guide plate and an optical sheet group; wherein the led-bar includes a plurality of light sources disposed towards the light entrance surface of the light guide plate; the light exit surface and the light entrance surface of the light guide plate are adjacent; a portion of the light exit surface of the light guide plate near the light entrance surface is provided with a step structure in which heights of steps gradually decrease in a first direction; the optical sheet group includes a plurality of optical sheets stacked on the side where the light exit surface of the light guide plate is located, and each of the optical sheets is fixed to a corresponding step in the step structure.


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