Power supply for sequentially energizing segments of an electrol

Details Power supply for sequentially energizing segments of an electrol Power supply for sequentially energizing segments of an electrol

1992-04-22

1994-10-25

Weldon, Ulysses

Computer graphics processing and selective visual display system

Plural physical display element control system

Segmented display elements

345122, 345903, 3151693, G09G 330, H05B 3308

Patent

active

053593413

ABSTRACT:
A power supply for sequentially energizing segments of an EL display device to produce an animated graphic using an EPROM to store the excitation information for the respective segments to be illuminated. The EPROM may be replaced by another EPROM programmed with a different sequence for the same or a different EL graphic display device. An alternating voltage wave generator has an adjustable frequency and variable pulse width output to match the characteristics of the EL device being driven to obtain the best illumination and device life for the given EL device. An optional microphone senses background music or other audio signals to synchronize the movement of the animated graphic to the beat or rhythm of the sensed audio.

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patent: 5191319 (1993-03-01), Kiltz

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