High capacitance pixel for electronic displays

Details High capacitance pixel for electronic displays High capacitance pixel for electronic displays

1998-07-20

2000-06-06

Vu, David

Electric lamp and discharge devices: systems

Plural power supplies

Plural cathode and/or anode load device

3151693, 313509, H01J 900

Patent

active

060722789

ABSTRACT:
An electroluminescent device in accordance with the present invention includes a first conductive layer having a portion thereof for connecting to a gate of a blocking transistor formed on a substrate. A dielectric layer is formed on the first conductive layer, the dielectric layer having a dielectric constant of at least six. A second conductive layer is formed on the dielectric layer such that the first and second conductive layers have portions which form electrodes of a hold capacitor and the dielectric layer provides a capacitor dielectric between the electrodes such that the dielectric layer continuously covers the device. A pixel electrode is associated with and coupled to the blocking transistor. An electroluminescent stack and a transparent electrode are included wherein the electroluminescent stack is disposed between the transparent electrode and the pixel electrode such that when the blocking transistor is activated the pixel electrode associated therewith illuminates and is maintained in an illuminated state by the hold capacitor.

REFERENCES:
patent: 4602192 (1986-07-01), Nomura et al.
patent: 5463279 (1995-10-01), Khormaei
CRC Handbook of Chemistry and Physics, David R. Lide, Ph.D., 1998-1999 79.sup.th Edition, pp. 12-55, 12-46, 12-56.
Section Ch, Week 9428 Derwent Publications, Ltd., London, GB; Class G08, AN 94-227433 XP002085092 & JP 06 09546 A (Toshiba KK), Apr. 8, 1994 See abstract.

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