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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 10886350 B1

PDFFull Text
Date of Patent:
Jan. 05, 2021

Filed:

Sep. 18, 2018

Electroluminescent device

Applicant:

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

Inventors:

Ji-Hyang Jang, Paju-si, KR;

Won-Hoe Koo, Paju-si, KR;

Min-Geun Choi, Paju-si, KR;

Assignee:

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

Attorney:

Morgan, Lewis & Bockius LLP

Primary Examiner:

Cuong B Nguyen

Int. Cl.
CPC ...
H01L 27/32 (2006.01); H01L 51/50 (2006.01); H01L 51/52 (2006.01); H01L 33/52 (2010.01); H01L 33/06 (2010.01); H01L 27/15 (2006.01); H01L 33/58 (2010.01);
U.S. Cl.
CPC ...
H01L 27/3262 (2013.01); H01L 27/156 (2013.01); H01L 27/322 (2013.01); H01L 27/3246 (2013.01); H01L 27/3258 (2013.01); H01L 33/06 (2013.01); H01L 33/52 (2013.01); H01L 33/58 (2013.01); H01L 51/504 (2013.01); H01L 51/5206 (2013.01); H01L 51/5209 (2013.01); H01L 51/5221 (2013.01); H01L 51/5225 (2013.01); H01L 51/5237 (2013.01); H01L 51/5275 (2013.01); H01L 27/3206 (2013.01); H01L 27/3213 (2013.01); H01L 27/3216 (2013.01); H01L 27/3218 (2013.01); H01L 51/5262 (2013.01);
Abstract

An electroluminescent device includes a substrate which has a subpixel including a main subpixel and an auxiliary subpixel; a first thin film transistor and a second thin film transistor disposed on the substrate, the first thin film transistor corresponding to the main subpixel and the second thin film transistor corresponding to the auxiliary subpixel; an overcoat layer on the first and second thin film transistors; a first bottom electrode and a second bottom electrode on the overcoat layer, the first bottom electrode corresponding to the main subpixel and the second bottom electrode corresponding to the auxiliary subpixel; a light-emitting layer on the first bottom electrode and the second bottom electrode; and a top electrode on the light-emitting layer, wherein the main subpixel and the auxiliary subpixel have different color temperatures.

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