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:
Aug. 08, 1989
Filed:
Jun. 16, 1986
Applicant:
Inventors:
Soji Tsuchiya, Tsukui, JP;
Yoshimasa Ito, Tokyo, JP;
Sadashi Higuchi, Kawasaki, JP;
Akio Yamashita, Tsukui, JP;
Assignee:
Matsushita Electric Industrial Company, Ltd., Kadoma, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
340785 ; 350357 ;
Abstract
An electrochromic display device comprises a pair of first and second, opposed insulative substrates, a layer of electrochromic substance sandwiched between the substrates, a transparent display electrode on the first substrate, and a counter electrode on the second substrate. A dielectric layer analogous in pattern to the display electrode is formed on the counter electrode to improve the device's life time and eliminate interference between adjacent display electrodes.