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:
Sep. 30, 1980
Filed:
Jul. 11, 1978
Applicant:
Inventors:
Masahiro Ise, Tenri, JP;
Kenzo Inazaki, Tenri, JP;
Katsuyuki Machino, Tenri, JP;
Chuji Suzuki, Nara, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
3151693 ; 340781 ;
Abstract
Between adjacent matrix type electrodes in a thin-film EL display panel, one of which is transparent, there is disposed an EL layer sandwiched by a pair of dielectric layers, which manifests a hysteresis curve when plotted with respect to the applied voltage vs light intensity characteristics. The thin-film EL display panel is further provided with at least one reference electrode. In reading out the memory state of the display panel, current is derived which has an amplitude equal to the difference between the current drawn through the reference electrode and the readout current.