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. 12, 1977
Filed:
Sep. 09, 1975
Applicant:
Inventor:
Georges Broussaud, Paris, FR;
Assignee:
Thomson-CSF, Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ; H04N / ;
U.S. Cl.
CPC ...
358 59 ; 358242 ;
Abstract
A display device for producing polychromatic luminous images comprising a display panel containing gas cells, electrodes for ionization of the gas, and a photoconductive layer located between the electrodes and responsive to a scanning invisible radiating beam. Each cell further comprises luminophore emitting primary visible radiations at the time of ionization of the gas, the ionization being effected by rendering the photoconductive layer locally conductive.