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:
Sep. 15, 2026
Filed:
Sep. 23, 2025
Lg Display Co., Ltd., Seoul, KR;
Jungjae Kim, Paju-si, KR;
Inrae Park, Paju-si, KR;
Taehwa Park, Paju-si, KR;
Dongju Kim, Paju-si, KR;
LG Display Co., Ltd., Seoul, KR;
Abstract
A display device includes: a display panel including sub-pixels configured to sequentially emit light along rows based on an emission control signal; a driving voltage supply circuit for supplying a driving voltage to the display panel through a driving voltage line; a charge storage circuit electrically connected to the driving voltage line; and a controller for controlling the driving voltage supply circuit and the charge storage circuit. The controller may output a control signal to the charge storage circuit based on changes in image gradation per region of the display panel. The charge storage circuit includes a plurality of switches connected in parallel to the driving voltage line and a plurality of capacitors electrically connected respectively to the plurality of switches and control the plurality of switches based on the control signal. Accordingly, it is possible to prevent or suppress variation in the driving voltage and the data voltage.