Soft luminescence of field emission display

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

1996-02-26

1997-10-14

Bradley, P. Austin

Electric lamp or space discharge component or device manufacturi

Process

With assembly or disassembly

445 52, 313496, H01J 130, H01J 918, H01J 9227

Patent

active

056765789

ABSTRACT:
Described are methods 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: 4857799 (1989-08-01), Spindt et al.
patent: 5595519 (1997-01-01), Huang
patent: 5633650 (1997-05-01), Kishino et al.

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