71.2: An Integrated Photo Sensor Array on Liquid‐Crystal‐On‐Silicon (LCOS) Microdisplay for Automatic White Balance

Abstract

A photo sensor array was placed on the perimeter of the CS-LCOS microdisplay to capture the incident red, green and blue light in sequence. These light intensities are processed by a peripheral video processor to control the duty cycles of the light sources for an automatic white balance at any time and temperature.