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:
Nov. 23, 2021
Filed:
Nov. 28, 2018
Samsung Display Co., Ltd., Yongin-si, KR;
Myounggeun Cha, Seoul, KR;
Sanggun Choi, Suwon-si, KR;
Meejae Kang, Suwon-si, KR;
Sanggab Kim, Seoul, KR;
Joon woo Bae, Hwaseong-si, KR;
Thanh Tien Nguyen, Seoul, KR;
Kyoungwon Lee, Seoul, KR;
Yongsu Lee, Seoul, KR;
SAMSUNG DISPLAY CO., LTD., Yongin-si, KR;
Abstract
A display substrate includes a first conductive layer on a base substrate, a first insulation layer on the first conductive layer, a second conductive layer on the first insulation layer, a second insulation layer on the second conductive layer, and a third conductive layer on the second insulation layer. The third conductive layer is connected to the first conductive layer and the second conductive layer through a contact hole passing through the first insulation layer, the second conductive layer, and the second insulation layer. A sidewall of the contact hole has a stepped shape.