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. 15, 2019
Filed:
Jul. 23, 2018
Samsung Display Co., Ltd., Yongin-si, Gyeonggi-do, KR;
Jong Oh Seo, Seoul, KR;
Byung Soo So, Yongin-si, KR;
Dong-Min Lee, Yongin-si, KR;
Dong-Sung Lee, Yongin-si, KR;
SAMSUNG DISPLAY CO., LTD., Yongin-si, Gyeonggi-Do, KR;
Abstract
An organic light emitting diode display includes a substrate, a scan line on the substrate to transfer a scan signal, a data line on the substrate to transfer a data signal, a switching transistor connected with the scan line and the data line, a driving transistor connected with the switching transistor, and an organic light emitting diode electrically connected to the driving transistor. The driving transistor may include a first semiconductor layer, the switching transistor may include a second semiconductor layer, and the first semiconductor layer may have a surface roughness that is greater than that of the second semiconductor layer.