Liquid crystal display device with optoelectronic component and method for controlling backlighting of such a display device

摘要

An LC display is disclosed that comprises a light source (5) that provides the background illumination, that emits light of only a part of the spectrum and that is disposed on the back (9) of the liquid crystal layer (10) so as to be protected and covered while it still is able to detect or emit light through the liquid crystal layer (10). The detected light is evaluated to control the background illumination and the inventive device enables data communication with an external device.