The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 01, 1983
Filed:
Jun. 26, 1981
Tomio Wada, Nara, JP;
Hisashi Uede, Yamatokoriyama, JP;
Sadatoshi Takechi, Nara, JP;
Kohzo Yano, Tenri, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
Electrochromic display device in which a display electrode is formed by depositing electrochromic material to a required configuration on a transparent conductive film comprising a portion contacted by the electrochromic material and a portion constituting a lead extension for connection to an external circuit, and both the conductive film lead extension and electrochromic material are covered by a layer of material which permits passage of ions between an electrolyte and the electrochromic material but is an insulator with respect to electrons, and thus colored display may be effected in a required manner but damage of the conductive film is prevented.