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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 12446404 B1

PDFFull Text
Date of Patent:
Oct. 14, 2025

Filed:

Oct. 25, 2021

Display panel with configuration for enhanced luminance efficiency

Applicant:

Lg Display Co., Ltd., Seoul, KR;

Inventors:

Mi-Na Kim, Gyeonggi-do, KR;

Jungsun Baek, Gyeonggi-do, KR;

Seongjoo Lee, Gyeonggi-do, KR;

Sunmi Lee, Gyeonggi-do, KR;

Namseok Yoo, Seoul, KR;

Assignee:

LG DISPLAY CO., LTD., Seoul, KR;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Xia L Cross

Int. Cl.
CPC ...
H10K 59/122 (2023.01); H10K 50/813 (2023.01); H10K 50/818 (2023.01); H10K 50/856 (2023.01); H10K 59/124 (2023.01); H10K 59/80 (2023.01); H10K 59/131 (2023.01); H10K 59/35 (2023.01);
U.S. Cl.
CPC ...
H10K 59/122 (2023.02); H10K 50/813 (2023.02); H10K 50/818 (2023.02); H10K 50/856 (2023.02); H10K 59/124 (2023.02); H10K 59/80515 (2023.02); H10K 59/80518 (2023.02); H10K 59/878 (2023.02); H10K 59/131 (2023.02); H10K 59/35 (2023.02);
Abstract

A display panel can include first, second and third subpixels on a substrate; an overcoat layer in the first, second and third subpixels; a concave area and a convex area in the overcoat layer in at least one of the first, second and third subpixels, the concave area being connected to the convex area through a first inclined surface of the overcoat layer; first, second and third anode electrodes corresponding to the first, second and third subpixels, respectively, at least one of the first, second and third anode electrodes includes a second inclined surface overlapping with the first inclined surface of the overcoat layer; first, second and third organic light emitting layers on the first, second and third anode electrodes, respectively; and a bank layer on the overcoat layer, the bank layer including a third inclined surface, at least one of the first, second and third inclined surfaces reflects light.

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