Digital drive architecture for flat panel displays

This present invention describes a new digital drive concept for flat panel displays where an all-digital drive is used to write data to pixels, which establish the gray scale for each pixel. In addition the invention integrates the all-digital drive with an optical sensor feedback circuit in the pixel without having to add an extra data line for the pixel sensor. Also discussed is a novel unique pulse timing system, where the positioning of the pulse in time has 12 bit accuracy using 8 bit gray scale data and a phase delay system (delay locked loop, DLL).