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.:
Date of Patent:
Jan. 27, 2026
Filed:
Sep. 23, 2021
Samsung Display Co., Ltd., Yongin-si, KR;
Hakchoong Lee, Yongin-si, KR;
Jihye Lee, Yongin-si, KR;
Myungsuk Han, Yongin-si, KR;
Dongchan Kim, Yongin-si, KR;
Yoonseok Ka, Yongin-si, KR;
Jiyoung Moon, Yongin-si, KR;
Samsung Display Co., Ltd., Yongin-si, KR;
Abstract
A display apparatus including a pixel electrode disposed on a substrate, an opposite electrode disposed to face the pixel electrode, a first emission layer and a second emission layer disposed on the first emission layer and overlapping each other between the pixel electrode and the opposite electrode, and a charge generation layer disposed between the first emission layer and the second emission layer, in which the charge generation layer includes an n-type charge generation layer, a p-type charge generation layer, and a metal interlayer disposed between the n-type charge generation layer and the p-type charge generation layer, and the metal interlayer includes metal having a work function of about −6.0 eV to about −3.5 eV.