Field emission display driver

Abstract

A field emission display (FED) driver sequentially provided with an amplifier for amplifying an input video signal, a sample-and-hold circuit for sampling and holding the amplified video signal, a display having a plurality of pixels for displaying the signal sampled by the sample-and-hold circuit, and a biasing power source causing a field emission to the display, for generating an image, the FED driver includes a detector for detecting a current change of the respective pixels of the display, an analog-to-digital (A/D) converter connected to the output of the detector for converting the output signal of the detector into a digital signal, a memory device wherein the information which is a basis for the luminescence characteristics of the respective pixels is stored, a subtracter for receiving and differentiating the output signal of the A/D converter and the signal supplied from the memory device, a luminescence processor for obtaining the luminescence characteristics of the respective pixels supplied from the subtracter and storing the same, and an adder for adding the digitized video signal to the signal output from the luminescence processor. Therefore, the luminescence characteristics of pixels are improved and a high picture quality can be obtained.

Dependencies are inferred from the claim text.