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:
Dec. 29, 1998
Filed:
Nov. 18, 1996
Applicant:
Inventor:
Ove Larson, Vastra Frolunda, SE;
Assignee:
Array Printers AB Publ., Vastra Frolunda, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
345 90 ; 345101 ; 345106 ;
Abstract
An information display device including, as main components, a thermosensitive material layer which can be gradually converted between a completely opaque state and a completely transparent state under the influence of temperature, an electrode matrix, a control device for multiplexing, scanning or pulsating control signals to the individually addressable electrodes, possibly together with a colored backing layer. The electrodes in the matrix are connected via heating means at the electrode crossing points. At each crossing point there is further positioned a current valve means (diode) or a separate driver circuit for each heating means.