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:
Mar. 31, 1987
Filed:
Mar. 31, 1986
Applicant:
Inventors:
Assignee:
Thomson-CSF, Paris, FR;
Primary Examiner:
Int. Cl.
CPC ...
G02F / ; B44C / ; C03C / ; C23F / ;
U.S. Cl.
CPC ...
350332 ; 156643 ; 156652 ; 156656 ; 156657 ; 1566591 ; 156662 ; 156667 ;
Abstract
Diode-type control matrix arrays for electrooptical flat-panel screens which find application in liquid-crystal displays are fabricated by depositing a layer of conductive material on a substrate and etching the control electrodes and control leads in this layer. The entire structure is then coated with an undoped amorphous semiconductor layer, with a doped amorphous semiconductor layer, and with a second layer of conductive material. In these three layers are etched terminal areas (or control elements) for connecting the control electrodes to the control leads.