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:
May. 17, 2022

Filed:

Mar. 31, 2021
Applicant:

Tianma Micro-electronics Co., Ltd., Shenzhen, CN;

Inventors:

Yuanying Wang, Shanghai, CN;

Jun Zhou, Shanghai, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/13363 (2006.01); G02F 1/1335 (2006.01);
U.S. Cl.
CPC ...
G02F 1/133631 (2021.01); G02F 1/133531 (2021.01); G02F 1/133638 (2021.01); G02F 2413/04 (2013.01); G02F 2413/07 (2013.01);
Abstract

A liquid crystal display panel is described. In an embodiment, the liquid crystal display panel includes: a first substrate; a second substrate; a liquid crystal layer; a first linear polarizer disposed at a side of the first substrate away from the liquid crystal layer; a first quarter-wave plate disposed between the first substrate and the first linear polarizer, where an angle between a slow axis of the first quarter-wave plate and an absorption axis of the first linear polarizer is 45° or 135°; a first retardation film disposed between the liquid crystal layer and the first quarter-wave plate; a second quarter-wave plate disposed between the liquid crystal layer and the first substrate, where slow axes of the first and second quarter-wave plates are perpendicular; and a second linear polarizer disposed at a side of the second substrate away from the liquid crystal layer, where absorption axes of the first and second linear polarizers are perpendicular.


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