Noiseless dispersion electroluminescent device and switch unit u

Details Noiseless dispersion electroluminescent device and switch unit u Noiseless dispersion electroluminescent device and switch unit u

1997-02-28

1998-10-06

Kinkead, Arnold

Electric lamp and discharge devices: systems

Plural power supplies

Plural cathode and/or anode load device

257 98, 345 76, 362 84, 313506, 313509, 313463, G09G 312

Patent

active

058181741

ABSTRACT:
A dispersion electroluminescent device and a switch unit using the same are disclosed. The dispersion electroluminescent device includes three electrodes: first and second electrode layers and a common electrode layer. The common electrode layer is disposed between the first and second electrode layers. An electroluminescent layer and a first dielectric layer are disposed between the first electrode layer and the common electrode layer. A second dielectric layer is disposed between the common electrode layer and the second electrode layer. A voltage source applies first and second ac or dc pulse voltages, which are 180.degree. out of phase with each other, across the first electrode layer and the common electrode layer and across the common electrode layer and the second electrode layer, respectively, for canceling mechanical vibrations produced at the first and second dielectric layers by each other.

REFERENCES:
patent: 4935671 (1990-06-01), Harada et al.
patent: 5006838 (1991-04-01), Fujioka et al.
patent: 5066893 (1991-11-01), Osada et al.
patent: 5325107 (1994-06-01), Ogawa et al.
patent: 5552679 (1996-09-01), Murasko

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