Electro-chromic display devices
AssigneeSharp Kabushiki Kaisha
InventorsHiroshi Kuwagaki, Hiroshi Hamada, Tadanori Hishida, Tomio Wada
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Abstract
An electro-chromic display device comprises an electro-chromic material and an electrolyte between a display electrode formed by a combination of a plurality of segments, and counter electrode disposed opposite thereto, and undergoes a reversible reaction for developing or erasing a color upon application of voltage or reverse polarity voltage. The counter electrode comprises a molded product obtained by molding under pressure a mixture of the powders of a solid oxidation-reduction type active material and an electrically conductive material.
Claims15
An electro-chromic display device comprising:
- a pair of substrates defining a cell;
- a display electrode composed of a plurality of segments provided on one of said substrates;
- a counter electrode disposed opposite to said display electrode and electrically connected to a conductor for supplying electric current, said counter electrode being formed from a molded product comprising a mixture of a solid oxidation-reduction active powder material and a conductor powder, said molded product being obtained by pressure molding;
- and an electro-chromic material, and an electrolyte disposed between said electrodes.
An electro-chromic display device comprising:
- a pair of substrates defining a cell;
- a display electrode composed of a plurality of segments provided on one of said substrates;
- a counter electrode disposed opposite to said display electrode and electrically connected to a conductor for supplying electric current, said counter electrode being formed from a molded product comprising a mixture of a solid oxidation-reduction active powder material and a conductor powder composed of expanded graphite, in the absence of a binder;
- and an electro-chromic material, and an electrolyte disposed between said electrodes.
Dependencies are inferred from the claim text.