Full color hybrid TFEL display screen

Details Full color hybrid TFEL display screen Full color hybrid TFEL display screen

1987-11-04

1989-01-31

Moore, David K.

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

313506, H05B 3314, H05B 3322

Patent

active

048018449

ABSTRACT:
A hybrid full color TFEL display device includes a pair of independently addressable matrix arrays on stacked substrates wherein the front substrate includes patterned phosphors arranged as alternating stripes, and the rear substrate includes a single phosphor layer. The rear phosphor layer may be either a red or blue emitter and the front phosphor stripes are either red-green or blue-green. The space between the stacked substrates may be filled with a dyed filler material to improve the chromaticity of the rear substrate phosphor. To achieve a full color spectrum the fill factors of the various phosphors are adjusted to be inversely proportional to respective luminance of each at the driving frequency of the panels.

REFERENCES:
patent: 4396864 (1983-08-01), Suntola et al.
patent: 4689522 (1987-08-01), Robertson
patent: 4719385 (1988-01-01), Barrow et al.

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