Wall-Mounted Display Edge Lighting for Shadow Elimination

The patent applies this principle by using the shadow-causing thickness of the display apparatus as a mounting advantage. The display is installed with its back surface facing the wall, and light emitting devices are arranged on the back surface to illuminate downward. This converts the harmful shadow effect into a beneficial lighting function, where the thickness that causes shadows also provides the necessary depth for effective light emission to eliminate shadows on the wall surface.

The patent introduces light emitting devices as an intermediary element between the display apparatus and the wall surface. These devices are arranged on the back surface of the display apparatus and emit light downward to illuminate the wall, acting as a mediator that eliminates the shadow areas created by the display's thickness while maintaining the aesthetic wall-mounted appearance.

The patent applies segmentation by dividing the light emitting devices into multiple groups arranged at different positions on the back surface of the display apparatus. Specifically, light emitting devices are arranged in a first group extending along a first direction and a second group extending along a second direction perpendicular to the first direction. This segmented arrangement allows for more effective shadow elimination while enabling selective activation of different device groups based on viewing conditions.

The patent implements dynamics by enabling independent control of different groups of light emitting devices. The control module can selectively activate specific groups based on ambient light conditions and user position detection, rather than running all devices continuously. This dynamic control reduces energy consumption and simplifies operation while maintaining effective shadow elimination when needed.

The patent applies feedback by using brightness sensors to detect ambient light levels and a camera to detect user position. The control module receives this feedback information and dynamically adjusts the activation state of different light emitting device groups. When ambient light is sufficient or no user is detected, the system reduces or stops light emission, thereby reducing energy consumption while maintaining shadow elimination effectiveness when needed.

The patent implements periodic action by activating light emitting devices only when necessary based on ambient light conditions and user presence, rather than continuous operation. The system periodically checks ambient light levels and user position through brightness sensors and camera, and activates light emitting devices in response to these periodic detections, thereby reducing overall energy consumption while maintaining effective shadow elimination during viewing periods.