Display apparatus for vehicle

Abstract

A CRT display system for a vehicle is provided, the system comprises a CRT for displaying images, vehicle information, or so forth, a liquid crystal panel assembly disposed in front of the CRT, a vehicle information sensor, and control means for the liquid crystal panel. The vehicle information sensor is adapted for determining whether the vehicle is running or not and whether an ambient light level is high or low to provide signals indicative thereof. The control means is operable to control the transmission factor of the liquid crystal panel so as to limit a visual angle for the driver in response to the signals output from the vehicle information sensor. When the ambient light level is low and the vehicle is running, the control means controls the liquid crystal panel assembly so as to reduce the transmission factor thereof to a first level with the result that no images from the CRT are projected to the driver through the panel assembly although passengers may clearly see the images. When the vehicle is parked, the images from the CRT are provided to the driver and passengers. On the other hand, when the ambient light level is low and the vehicle is running, the transmission factor is reduced to a second level lower than the first level to interrupt the light of images from the CRT to the driver completely, although passengers may clearly see the images.