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:
Mar. 09, 2021
Filed:
Oct. 07, 2019
Samsung Display Co., Ltd., Yongin-si, KR;
Tae Hoon Yang, Yongin-si, KR;
Kibum Kim, Yongin-si, KR;
Jongjun Baek, Yongin-si, KR;
Byung Soo So, Yongin-si, KR;
Jong chan Lee, Yongin-si, KR;
Woong Hee Jeong, Yongin-si, KR;
Jaewoo Jeong, Yongin-si, KR;
SAMSUNG DISPLAY CO., LTD., Yongin-si, KR;
Abstract
A display apparatus includes a base substrate, an active pattern on the base substrate including a source region, a drain region, and a channel region that is doped between the source region and the drain region, the channel region including polycrystalline silicon, and a gate electrode overlapping the channel region of the active pattern. The channel region may include a lower portion, an upper portion, and an intermediate portion between the upper portion and the lower portion, and a dopant density of the lower portion may be 80% or more of a dopant density of the upper portion.