DEVICE FOR LIGHTING PASSIVE LIQUID CRYSTAL DISPLAYS

摘要

Device for lighting passive liquid crystal displays whereby bright display elements appear on a dark background by negative contrast. Masks (21) in the area of bearing positions (18) of the liquid crystal display (10) should disappear in the image shown by the display. To this effect, before the liquid crystal display (10) there is arranged a light guide (22) wherein light from outside the display penetrates and which has in the region of the masks (21) superficial regions (22a) which transmit forwardly part of the light.