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. 30, 2024

Filed:

Apr. 13, 2021
Applicants:

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

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

Inventors:

Nanfang Jia, Beijing, CN;

Long Wang, Beijing, CN;

Liye Duan, Beijing, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 8/00 (2006.01); G02F 1/1334 (2006.01); G02F 1/1335 (2006.01); G02F 1/13357 (2006.01); G02F 1/1337 (2006.01); G02F 1/1343 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0068 (2013.01); G02B 6/0023 (2013.01); G02B 6/009 (2013.01); G02F 1/133512 (2013.01); G02F 1/133621 (2013.01); G02F 1/133742 (2021.01); G02F 1/133784 (2013.01); G02F 1/134309 (2013.01); G02F 1/1334 (2013.01); G02F 2201/56 (2013.01); G02F 2202/28 (2013.01); G02F 2203/01 (2013.01);
Abstract

A display panel includes a liquid crystal cell, a light guide plate, and at least one light source. The light guide plate is attached to a surface of the liquid crystal cell in a thickness direction of the liquid crystal. The light guide plate includes a first surface, a second surface and side surfaces. In a thickness direction of the light guide plate, the first surface is opposite to the second surface, and the side faces are located between the first surface and the second surface. The first surface is closer to the liquid crystal cell than the second surface. A light source is disposed on at least a partial region in at least one side face. The light guide plate is configured such that light incident on the second surface in light from the light source is totally reflected, and then exits from the first surface.


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