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:
Apr. 18, 2000
Filed:
Jun. 04, 1998
Applicant:
Inventors:
Assignee:
Samsung Display Devices Co., Ltd., Kyungki-do, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K / ; G02F / ; G02F / ;
U.S. Cl.
CPC ...
235492 ; 349-1 ; 349158 ;
Abstract
A smart card includes a transparent circuit board on which an integrated circuit, function switches, a power source, and other parts are mounted, an upper substrate facing the circuit board, upper and lower electrodes respectively located on facing surfaces of upper substrate and the circuit board, orthogonal to each other, orientation films coating the upper and lower electrodes, and a liquid crystal material located and sealed between the upper and lower electrodes.