Patent ID: 8068125

Claim:
A method for avoiding luminescence shock in a display device when a previously dark display device is suddenly illuminated, comprising: detecting a current ambient light level at the display device at a time at which the display device is in a dark state; if the detected ambient light level is below a luminescence shock threshold established at the display device, turning on the display device from the dark state to a reduced brightness level as compared to the brightness level normally appropriate for the detected current ambient light level as dictated by a brightness function established by the display device, the brightness function representing a display brightness level at the display device for a given ambient light level, and after a predetermined time interval has elapsed, ramping up the brightness level from the reduced brightness level to the brightness level dictated by the brightness function and the detected ambient light level; and if the detected ambient light level is at or above the luminescence shock threshold, turning on the display device from the dark state to the brightness level appropriate for the detected ambient light level as dictated by the brightness function.