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:
Jun. 09, 2026
Filed:
Sep. 11, 2023
Samsung Display Co., Ltd., Yongin-si, KR;
Jae Ik Kim, Yongin-si, KR;
Hye Jin Gwark, Yongin-si, KR;
Hwi Kim, Yongin-si, KR;
Jung Sun Park, Yongin-si, KR;
Yeon Hwa Lee, Yongin-si, KR;
Joon Gu Lee, Yongin-si, KR;
SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do, KR;
Abstract
A display device includes a pixel electrode, a pixel defining layer disposed on the pixel electrode and forming an opening which exposes a portion of the pixel electrode, an auxiliary electrode disposed on the pixel defining layer and the pixel electrode, an intermediate layer disposed on the pixel defining layer and the auxiliary electrode and a common electrode disposed on the intermediate layer. The pixel defining layer includes a recessed portion recessed into the pixel defining layer, the auxiliary electrode includes a first undercut forming portion disposed on the recessed portion and contacting the portion of the pixel electrode, and the intermediate layer includes a hole injection layer, a light-emitting layer and an electron injection layer stacked sequentially. The hole injection layer includes a first portion disposed on the first undercut forming portion and a second portion separated from the first portion and disposed on the recessed portion.