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:
Nov. 05, 2024

Filed:

Jun. 15, 2023
Applicant:

Qisda Corporation, Taoyuan, TW;

Inventors:

Chang-Min Shao, Taoyuan, TW;

Chien-Hao Kao, Taoyuan, TW;

Chih-Chun Chang, Taoyuan, TW;

Jyun-Sheng Syu, Taoyuan, TW;

Assignee:

Qisda Corporation, Taoyuan, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/13 (2006.01); F21V 8/00 (2006.01); G02F 1/1335 (2006.01);
U.S. Cl.
CPC ...
G02F 1/1323 (2013.01); G02B 6/0036 (2013.01); G02B 6/0043 (2013.01); G02B 6/0053 (2013.01); G02B 6/0055 (2013.01); G02B 6/0058 (2013.01); G02B 6/0068 (2013.01); G02B 6/0076 (2013.01); G02F 1/133626 (2021.01); G02F 1/133627 (2021.01);
Abstract

The display device includes a display panel and a backlight module on the display panel. The backlight module includes light guide plate having a light incident surface, a light emitting surface facing the display panel and a reflection surface. Two sides of the light incident surface connect the light emitting surface and the reflection surface respectively. The reflection surface includes a first periphery light guide region, a second periphery light guide region, and a middle light guide region between the first periphery light guide region and the second periphery light guide region. The first periphery light guide region includes first microstructures. The second periphery light guide region includes second microstructures. The first microstructures have first light guide inclined surfaces inclined towards the second periphery light guide region. The second microstructures have second light guide inclined surfaces inclined towards the first periphery light guide region.


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