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:
Jan. 12, 1982
Filed:
Jul. 05, 1979
Hiroshi Kuwagaki, Joyo, JP;
Hiroaki Kato, Tenri, JP;
Sadatoshi Takechi, Nara, JP;
Hiroshi Nakauchi, Tenri, JP;
Yasuhiko Inami, Tenri, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A porous separator is provided with an electrochromic display for containing an electrolyte, whereby a display electrode is continuously, electrically rotated to a counter electrode through the electrolyte. A filter separator is further provided together with the porous separator for urging the porous separator toward the display electrode and itself toward the counter electrode because of the elastic characteristic thereof. The filter separator can also contain the electrolyte. The porous separator provides a white background for the display electrode. The remaining electrolyte, except for the electrolyte in both the porous and the filter separators, is eliminated from the electrochromic display to provide a cavity within the electrolyte for cancelling the cubic expansion of the electrolyte when temperature rises. This cubic expansion cancelling cavity may be formed by injecting a bubble into the electrolyte. The cavity is settled at a fixed position by the provision of an electrolyte-impregnated separator means without any interference with the display and counter electrodes.