Scrolling backlight device for lcd display panel

摘要

A scrolling backlight device includes a plurality of light guides, a power supply adapted to supply an output voltage, a plurality of microlight engines each adapted to provide light to one of the light guides when supplied with the output voltage; and a plurality of switches adapted to selectively connect the power signal to the microlight engines to sequentially provide light to the plurality of light guides. The horizontally-extending light guides are arranged side by side in the vertical direction. A controller sequentially activates the microlight engines to sequentially illuminate the light guides from top to bottom of the device in a repeating scrolling pattern. The microlight engines include an electronic light source such as a light emitting diode.