AMEL device with improved optical properties
AssigneePlanar Systems, Inc.
InventorsRichard T. Tuenge, Stephanier J. Moehnke, Kumnith Ping
Life of this patent
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Abstract
An alternating current thin-film lectroluminescent device includes a plurality of pixel electrodes. An electroluminescent phosphor material is located between a first dielectric layer and a second dielectric layer. A transparent electrode layer, wherein at least a portion 10 of the electroluminescent phosphor material and the first and second dielectric layers are located between the pixel electrodes and the transparent electrode layer. The first dielectric layer is closer to the transparent electrode layer than the second dielectric layer. A non-uniform substantially non-conductive light absorbing material is located between the transparent electrode layer and the first dielectric layer.
Claims27
An alternating current electroluminescent device comprising:
- (a) a plurality of conductive electrodes;
- (b) an electroluminescent phosphor material located between a first dielectric layer and a second dielectric layer;
- (c) a conductive transparent electrode layer wherein at least a portion of, (1) said electroluminescent phosphor material and (2) at least one of said first and second dielectric layers are located between said conductive electrodes and said conductive transparent electrode layer, where said first dielectric layer is closer to said transparent electrode layer than said second dielectric layer;
- and
- (d) a non-uniform substantially non-conductive light absorbing material located between said conductive transparent electrode layer and said first dielectric layer.
An alternating current electroluminescent device comprising:
- (a) a plurality of conductive electrodes;
- (b) an electroluminescent phosphor material located between a first dielectric layer and a second dielectric layer;
- (c) a transparent electrode layer wherein at least a portion of, (1) said electroluminescent phosphor material and (2) at least one of said first and second dielectric layers are located between said conductive electrodes and said conductive transparent electrode layer, where said first dielectric layer is closer to said transparent electrode layer than said second dielectric layer;
- and
- (d) a non-uniform substantially non-conductive non-light absorbing material located between said transparent electrode layer and said first dielectric layer.
An alternating current thin-film electroluminescent device comprising:
- (a) a plurality of conductive electrodes;
- (b) an electroluminescent phosphor material located between a first dielectric layer and a second dielectric layer;
- (c) a conductive transparent electrode layer wherein at least a portion of, (1) said electroluminescent phosphor material (2) at least one of and said first and second dielectric layers are located between said conductive electrodes and said conductive transparent electrode layer, where said first dielectric layer is closer to said transparent electrode layer than said second dielectric layer;
- and
- (d) at least one of said transparent electrode layer and said first dielectric layer is patterned with regions of substantially non-conductive light absorbing material and regions of substantially light transparent material.
Dependencies are inferred from the claim text.