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. 30, 2020
Filed:
Jul. 27, 2018
Samsung Display Co., Ltd., Yongin-si, Gyeonggi-do, KR;
Jinwoo Lee, Yongin-si, KR;
Waljun Kim, Yongin-si, KR;
Kiwan Ahn, Yongin-si, KR;
Yongjae Jang, Yongin-si, KR;
Jaehyuk Jang, Yongin-si, KR;
Yugwang Jeong, Yongin-si, KR;
SAMSUNG DISPLAY CO., LTD., Yongin-si, Gyeonggi-Do, KR;
Abstract
A thin film transistor array substrate includes: a first conductive layer including first lines for transmitting data signals to the thin film transistors; a second conductive layer disposed on the first conductive layer and including second lines for supplying a driving voltage to the thin film transistors; a first insulating layer disposed between a semiconductor layer and the first conductive layer and including a first material layer; a second insulating layer disposed between the first conductive layer and the second conductive layer and including a second material layer having a dielectric constant greater than that of the first material layer; and a contact plug penetrating the second insulating layer and the first insulating layer, and connecting the second conductive layer to the semiconductor layer. A taper angle of the contact plug in the second material layer is greater than that of the contact plug in the first material layer.