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:
Oct. 21, 1980
Filed:
Aug. 07, 1978
Hirotada Ueda, Kobe, JP;
Satoshi Ihara, Akashi, JP;
Displaytek Corporation, Kobe, JP;
Daiwa Shinku Corporation, Kakogawa, JP;
Abstract
An electrostatic display device includes an insulative base, a substantially transparent fixed electrode mounted on the base, a substantially transparent dielectric layer such as silicon dioxide applied on the outer surface of the fixed electrode, a resilient sheet electrode fixed at one end thereof to the base and extending therefrom adjacent to the fixed electrode, a means for applying a voltage between the fixed electrode and the sheet electrode, and a display placed on or behind the inner surface of the fixed electrode. When there is no voltage between the fixed and the sheet electrodes, the display is visible through the transparent fixed electrode and the dielectric layer, whereas upon applying a voltage between the fixed and the sheet electrodes, the sheet electrode is attracted to and covers the outer surface of the fixed electrode, thereby concealing the display. The fixed electrode preferably comprises a transparent glass mold having a layer of an electrically conductive material such as stannic oxide chemically vapor-deposited on the outer surface thereof.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile