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. 03, 2025
Filed:
Jul. 07, 2022
Global Technologies Co., Ltd, Hwaseong-si, KR;
Yong Geun Kim, Suwon-si, KR;
Min Seon Kim, Hwaseong-si, KR;
GLOBAL TECHNOLOGIES CO., LTD, Hwaseong-si, KR;
Abstract
Proposed are a backlight device for display and a current control integrated circuit therefor, the current control integrated circuit includes a plurality of driving current control units sharing a column signal for backlight and controlling driving currents of a predetermined number of light-emitting diode channels belonging to the same control group, wherein the plurality of the driving current control units receive the column signal for the control group and the zoom control signal in a shared manner and sequentially receive row signals, respectively, and wherein each of the plurality of driving current control units generates the sampling voltage that results from sampling the column signal using the row signal, and controls the driving current for light emission from the light-emitting diode channel using the sampling voltage, thereby enabling a gain for conversion of the driving current by the sampling voltage to be controlled with the zoom control signal.