EQUIPMENT OF TESTING LIQUID CRYSTAL ACTIVE MATRIX DISPLAY CHANNELS

AN OPTICAL SUBTRACTION TECHNIQUE IS PROPOSED FOR TESTING THE ACTIVE MATRIX PIXEL PERFORMANCE WITHOUT NEED FOR LIQUID CRYSTAL FILLING. SINCE THE ACTIVE MATRIX ARRAY IS A BINARY OBJECT IN THE OPTICAL SENSE, AN OPTICAL SUBTRACTION TECHNIQUE IS VERY SUITABLE FOR DETECTING THE ACTIVE MATRIX DEFECTS. FOR TESTING AN ACTIVE MATRIX WITH BROKEN OR SHORTED LINES, THE PROPOSED TECHNIQUE WILL PROVIDE A REAL-TIME AUTOMATED SYSTEM THAT CONNECTS WITH AN ELECTRONIC IMAGING SYSTEM AND A COMPUTER THAT CAN BE UTILIZED IN THE MANUFACTURING PROCESS. THE DEFECTS OF A MATRIX PANEL WILL BE IMAGED BY THE ELECTRONIC IMAGING SYSTEM, DISPLAYED ON A MONITOR AND PROCESSED BY THE COMPUTER SO THAT THE TYPES AND LOCATIONS OF DEFECTS WILL BE AUTOMATICALLY PRESENTED BY THE EQUIPMENT. ANTICIPATED BENEFITS/POTENTIAL COMMERCIAL APPLICATIONS - THE RESEARCH AND DEVELOPMENT PROPOSED IN THIS PROPOSAL WILL PROVIDE A REAL TIME OPTICAL SYSTEM FOR TESTING PIXEL PERFORMANCE OF AN ACTIVE MATRIX ARRAY. ASSOCIATED WITH THIS APPROACH, MAJOR MILITARY AND INDUSTRIAL BENEFITS ARE ANTICIPATED.