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:
Dec. 03, 2019
Filed:
Aug. 31, 2017
Lg Display Co., Ltd., Seoul, KR;
Yongseok Park, Goyang-si, KR;
Hyelim Ji, Paju-si, KR;
LG Display Co., Ltd., Seoul, KR;
Abstract
Disclosed herein is a liquid crystal display device capable of improving reliability of a gate in panel (GIP) type gate driving circuit by improving positive bias temperature stress (PBTS) characteristics of a thin film transistor in the gate driving circuit. The liquid crystal display device may include a first substrate including a thin film transistor of a GIP circuit, and an opaque electrode line that overlaps a semiconductor active layer of the thin film transistor. A backlight unit is included, and a second substrate is positioned between the backlight unit and the first substrate. The second substrate includes a black matrix having an opening that transmits light emitted from the backlight unit. In operation, the opaque electrode line blocks a portion of the light transmitted through the opening of the black matrix, and another portion of the light transmitted through the opening of the black matrix is transmitted to the semiconductor active layer.