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. 01, 2025

Filed:

Nov. 01, 2021
Applicant:

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

Inventors:

Sang-Bin Lee, Paju-si, KR;

In-Sun Yoo, Paju-si, KR;

Jeong-Mook Choi, Paju-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/32 (2006.01); H10K 50/13 (2023.01); H10K 59/122 (2023.01); H10K 59/38 (2023.01);
U.S. Cl.
CPC ...
H10K 59/122 (2023.02); H10K 50/131 (2023.02); H10K 59/38 (2023.02);
Abstract

An electroluminescent display device includes first and second substrates on which a pixel including first, second, and third sub-pixels are defined, a light-emitting diode disposed at each of the first, second, and third sub-pixels on the first substrate and including a first electrode, a light-emitting layer and a second electrode, and a bank between adjacent sub-pixels along a first direction, wherein the light-emitting layer includes first, second, and third light-emitting layers, wherein each of the first and second light-emitting layers includes first and second light-emitting material layers, and the third light-emitting layer includes a second light-emitting material layer, and wherein a height of the first light-emitting material layer of each of the first and second light-emitting layer increases as it approaches the bank, and the second light-emitting material layers of the first, second, and third light-emitting layers are disposed on top and side surfaces of the bank.


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