Lg Electronics Inc.

Myungdeok Bae

Yonghyun Kim

Sungjin Kang

Yanghyun Kim

Sangjoon Park

Wonsik Kim

Woosik Jung

Byungchang Cha

Heeyoung Lim

Sungoh Yang

Geunyong Kim

Chansic Park

Jonghyug Bae

A display apparatus in one example can include a plurality of light emitting diodes, and a plurality of driving devices to output driving signals for driving the plurality of light emitting diodes. Each of the plurality of driving devices bypasses input common command data and outputs the common command data to an adjacent driving device. Accordingly, a transmission period of data transmitted to the plurality of driving devices can be reduced.

Display apparatus including driving devices that bypass input common command data, and image display apparatus including same

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.

Digital signage system and operating method therefor

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Seoul, South Korea

Myungdeok Bae