Patent ID: 6985127

Claim:
A method for calibrating a fault tolerant liquid crystal display comprising the steps of: placing a fault tolerant liquid crystal display into an optical test-bed, wherein the liquid crystal display includes a primary liquid crystal display region and least one secondary liquid crystal display region, each liquid crystal display region containing an array of pixels; uniformly illuminating each of the pixels on the liquid crystal display regions; determining a desired light intensity through each of the pixels on the liquid crystal display regions; determining a desired uniformity level for the liquid crystal display; applying a first voltage to the pixels of the primary liquid crystal display region and applying a second voltage to the pixels of the secondary liquid crystal display region to achieve a transmitted light intensity; measuring the transmitted light intensity through each of the pixels on the liquid crystal display regions; comparing the transmitted light intensity with the desired light intensity; adjusting the first voltage or the second voltage to achieve the desired light intensity and the desired uniformity; and fixing the adjusted first voltage and adjusted second voltage to maintain the desired light intensity and the desired uniformity.