Soft luminescence of field emission display

Details Soft luminescence of field emission display Soft luminescence of field emission display

1994-07-13

1996-04-23

Bradley, P. Austin

Electric lamp or space discharge component or device manufacturi

Process

With assembly or disassembly

445 49, 313461, 313496, H01J 9227

Patent

active

055098398

ABSTRACT:
Methods are available for making, and resultant structures of, a field emission display with soft luminescence and a comfortable image for a viewer of the display. The field emission display is formed with a baseplate and an opposing face plate. Field emission microtips are formed in openings in a conductive and insulating layer on the baseplate. An anode is formed on either the faceplate, or on the conductive layer surrounding each opening. Phosphorescent material is formed over the anode. A blocking layer is formed between the phosphor and the faceplate, such that during operation of the display direct light emission from the phosphor is blocked, resulting in indirect phosphorescence and a more comfortable display image. An optional reflective layer may be added over the conductive layer to increase phosphorescence.

REFERENCES:
patent: 4164683 (1979-08-01), Nakamura et al.
patent: 4908539 (1990-03-01), Meyer
patent: 5229331 (1993-07-01), Doan et al.

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