Electroluminescent display having reversible voltage polarity

Details Electroluminescent display having reversible voltage polarity Electroluminescent display having reversible voltage polarity

1996-04-17

1999-12-07

Shalwala, Bipin H.

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

345 77, 345209, G09G 330

Patent

active

05999150&

ABSTRACT:
An electroluminescent display having reversible polarity and a method for reducing latent images in the electroluminescent panel is provided. The electroluminescent display includes a waveform generator for supplying voltage pulses to illuminate pixels within the electroluminescent panel. The electroluminescent display according to the invention periodically reverses the polarity of the voltage pulses to reduce latent images in the electroluminescent panel. The electroluminescent display preferably utilizes an asymmetrical drive scheme to provide a brighter electroluminescent display.

REFERENCES:
patent: 4554539 (1985-11-01), Graves
patent: 4801920 (1989-01-01), Ohba et al.
patent: 4866348 (1989-09-01), Harada et al.
patent: 4975691 (1990-12-01), Lee
patent: 5093655 (1992-03-01), Tanioka et al.
patent: 5627556 (1997-05-01), Kwon et al.

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