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:
Feb. 21, 2023
Filed:
Jan. 14, 2021
Applicant:
Samsung Display Co., Ltd., Yongin-si, KR;
Inventors:
Assignee:
SAMSUNG DISPLAY CO., LTD., Yongin-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/00 (2006.01); H01L 29/00 (2006.01); H01L 29/786 (2006.01); H01L 27/12 (2006.01); H01L 27/32 (2006.01);
U.S. Cl.
CPC ...
H01L 29/78606 (2013.01); H01L 27/1225 (2013.01); H01L 27/3262 (2013.01);
Abstract
A display device includes a buffer layer disposed on a substrate and comprising a first buffer film, and a second buffer film, wherein the first buffer film and the second buffer film are sequentially stacked in a thickness direction of the display device; a semiconductor pattern disposed on the buffer layer; a gate insulating layer disposed on the semiconductor pattern; and a gate electrode disposed on the gate insulating layer, wherein the first buffer film and the second buffer film comprise a same material, and a density of the first buffer film is greater than a density of the second buffer film.