Electroluminescent panel
AssigneeSharp Kabushiki Kaisha
InventorsKouji Taniguchi, Koichi Tanaka, Kousuke Terada, Akiyoshi Mikami, Masaru Yoshida
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Abstract
A multi-color electroluminescent panel comprising common electrodes and a plurality of transparent electrodes, an EL light emitting layer disposed between the common and transparent electrodes and capable of exhibiting a hysteresis in light emission luminance versus applied voltage characteristic, and band-pass color filters provided on the EL light emitting layer for passing therethrough light of a particular color emitted from the EL light emitting layer.
Claims3
An electroluminescent panel, comprising:
- first and second electrodes;
- first and second insulating layers disposed between said first and second electrodes;
- light emitting layer means, disposed between said first and second insulating layers for generating light as a function of a voltage applied by said first and second electrodes, said light emitting layer means having a plurality of cavities formed therein which limit propagation of the generated light within said light emitting means;
- and
- a photo-conductive layer disposed between said first electrode and said first insulating layer to give a hysteresis in light emission luminance versus applied voltage characteristic.
An electroluminescent panel, comprising:
- first and second electrodes;
- first and second insulating layers disposed between said first and second electrodes;
- light emitting layer means, disposed between said first and second insulating layers for generating light as a function of a voltage applied by said first and second electrodes, said light emitting layer means having a plurality of cavities formed therein which limit propagation of the generated light within said light emitting means;
- and
- a photo-conductive layer disposed between said first electrode and said first insulating layer to give a hysteresis in light emission luminance versus applied voltage characteristic wherein the photo-conductive layer is Si.sub.x C.sub.1-x where 0<x<1 and wherein at least one of said cavities contains a light shielding material.
An electroluminescent panel, comprising:
- a plurality of picture elements including a first and second picture element, each picture element comprising:
- first and second electrodes;
- a light emitting portion disposed between said first and second electrodes, wherein said light emitting portion generates light as a function of a voltage developed between said first and second electrodes;
- and
- a photoconductive layer disposed between said first electrode and said first insulating layer to give a hysteresis in light emission luminance versus applied voltage characteristic;
- wherein the panel further comprises a light shielding material disposed between the light emitting portion of the first picture element and the light emitting portion of the second picture element.
Dependencies are inferred from the claim text.