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:
Sep. 26, 2023
Filed:
Dec. 06, 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 29/786 (2006.01); H01L 29/45 (2006.01); C22C 27/04 (2006.01); H01L 27/12 (2006.01); H10K 59/121 (2023.01);
U.S. Cl.
CPC ...
H01L 29/78618 (2013.01); C22C 27/04 (2013.01); H01L 27/1225 (2013.01); H01L 27/1251 (2013.01); H01L 27/1255 (2013.01); H01L 29/45 (2013.01); H01L 29/454 (2013.01); H01L 29/458 (2013.01); H01L 29/7869 (2013.01); H10K 59/1216 (2023.02); H01L 2924/1205 (2013.01); H01L 2924/13069 (2013.01); H10K 59/1213 (2023.02);
Abstract
A display substrate including a base substrate, a first thin film transistor disposed on the base substrate and including a first gate electrode and a first semiconductor active layer; a second thin film transistor electrically connected to the first thin film transistor, the second thin film transistor including a second gate electrode and a second semiconductor active layer; and an organic light emitting device electrically connected to the second thin film transistor. The first semiconductor active layer includes a first material and the second semiconductor active layer includes a second material different from the first material.