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:
Jun. 21, 2022
Filed:
Apr. 06, 2020
Samsung Display Co., Ltd., Yongin-si, KR;
Seokhwan Bang, Yongin-si, KR;
Jong-In Kim, Seoul, KR;
Kangnam Kim, Seoul, KR;
Woogeun Lee, Yongin-si, KR;
Sung-Hoon Lim, Suwon-si, KR;
Soojung Chae, Seoul, KR;
SAMSUNG DISPLAY CO., LTD., Yongin-si, KR;
Abstract
An organic light emitting diode display device includes a substrate, an active layer disposed on the substrate and including a metal oxide-based semiconductor, a gate electrode disposed on the active layer, an insulating layer disposed on the gate electrode, source and drain electrodes disposed on the insulating layer, a light emitting element on the source and drain electrodes, and a gate insulating layer between the active layer and the gate electrode. The gate insulating layer includes first and second gate insulating layers. The first gate insulating layer directly contacts the active layer and has a first amount of nitrogen. The second gate insulating layer is disposed on the first gate insulating layer and has a second amount of nitrogen that is different from the first amount of nitrogen.