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:
Jan. 06, 1987
Filed:
Jul. 11, 1984
Michel Favreau, Neuilly, FR;
Thomson CSF, Paris, FR;
Abstract
In an embodiment, the device comprises ten rows of ten cathode-ray tubes, each tube being associated with a convergent lens. Each cathode-ray tube reproduces a picture portion and the lens enlarges this picture portion in such a ratio that the joints between the cathode-ray tubes no longer appear. The cathode-ray tubes incorporate a single electron gun, two pairs of electrostatic deflection plates and a screen incorporating red, green and blue phosphors abnd ultraviolet indexing phosphors. The display device is connected to an electronic device which supplies scan signals for each cathode-ray tube and which supplies color signals. The horizontal-scan frequency and vertical-scan frequency are ten times higher than for a conventional television display. The electronic device possesses memories which store the color information corresponding to each of the picture portions.