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:
Feb. 13, 2024
Filed:
Jun. 16, 2022
Lg Display Co., Ltd., Seoul, KR;
Jinwon Kim, Gyeonggi-do, KR;
MooKyoung Hong, Gyeonggi-do, KR;
LG DISPLAY CO., LTD., Seoul, KR;
Abstract
A display device includes a display panel in which a plurality of subpixels including a light emitting element that emits light by a high potential voltage supplied to a driving voltage line, and a plurality of reference voltage lines connected to the plurality of subpixels to detect a characteristic value are disposed; a data driving circuit configured to supply a low potential voltage to the driving voltage line through the plurality of reference voltage lines; a base voltage switching circuit configured to control a ground voltage node connected to a cathode electrode of the light emitting element; a current detecting circuit configured to detect a current flowing between the base voltage node and a ground; and a timing controller configured to control the base voltage switching circuit and generate a defect detection signal for the driving voltage line according to a current detected by the current detecting circuit.