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公开(公告)号:US11488544B2
公开(公告)日:2022-11-01
申请号:US17288465
申请日:2018-11-06
Applicant: LG ELECTRONICS INC.
Inventor: Sangjoon Park , Wonsik Kim , Sungjin Kang , Heeyoung Lim , Byungchang Cha , Geunyong Kim , Myungdeok Bae
Abstract: Disclosed herein are a digital signage system for limiting a luminance range settable by a user according to the number of power supply units (PSUs) and a method of operating the same. The digital signage system includes a panel configured to display an image, a plurality of light emitting diode (LED) driver modules configured to provide to the panel, a display device including at least one power supply unit configured to supply power to the panel and the plurality of LED driver modules, and a system controller configured to control the display device. The system controller includes a display configured to display a luminance setting screen for controlling luminance of the image and a controller configured to change a settable maximum luminance value according to the number of power supply units when the luminance setting screen is displayed.