Advances in field emission display phosphors

Field emission displays are rapidly progressing towards the commercial marketplace. Improved technology for performance and manufacture have enabled this progress, including new materials and materials processing. Improvements have been achieved in all aspect of the display, ranging from cathode to anode to spacers to sealing technologies. While all of these technologies are critical to success, the present discussion will focus on improved technology for the phosphors. The performance of the phosphors in FEDs is critically dependent upon a number of factors, including the operating voltage, phosphor efficiency and saturation, residual vacuum level, and phosphor/tip interactions.