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:
Oct. 05, 2021
Filed:
Apr. 16, 2020
Samsung Display Co., Ltd., Yongin-si, KR;
Joon Seok Park, Yongin-si, KR;
Yeon Keon Moon, Hwaseong-si, KR;
Myoung Hwa Kim, Seoul, KR;
Tae Sang Kim, Seoul, KR;
Hyung Jun Kim, Seoul, KR;
Geun Chul Park, Suwon-si, KR;
Sang Woo Sohn, Yongin-si, KR;
Jun Hyung Lim, Seoul, KR;
Kyung Jin Jeon, Incheon, KR;
Hye Lim Choi, Yongin-si, KR;
SAMSUNG DISPLAY CO., LTD., Yongin-si, KR;
Abstract
A display device includes a pixel including a light emitting element connected to a scan line and a data line; a driving transistor that controls a driving current supplied to the light emitting element according to a data voltage applied from the data line. The driving transistor includes a first semiconductor layer, and a first gate electrode disposed on the first semiconductor layer. The display device includes a switching transistor that applies the data voltage to the driving transistor according to a scan signal applied to the scan line. The switching transistor includes a second semiconductor layer, and a second gate electrode disposed on the second semiconductor layer. The display device includes a light blocking layer and a first buffer layer disposed at a lower portion of the driving transistor. The light blocking layer and the first buffer layer do not overlap the switching transistor.