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, 1988
Filed:
Mar. 27, 1986
Hangzhon University, Hangzhon, CN;
Shenzhen Electronic Display Devices, Ltd., Guangdong, CN;
Abstract
The present invention relates to high luminant fluorescent color picture element tubes and display units of the same for large area or giant area display. A fluorescent picture element tube comprises a cathode, a control electrode, an anode, and a light output window. Several such color tubes may be arranged in line or matrix to construct a color picture element tube display unit representing one or more picture elements. The light emitted by the phosphor coated on the large area of the anode passes through the relatively small area of the light output window. A high luminance efficiency may also be obtained as the good heat dissipation of the anode. So higher light output can be obtained and the anode voltage can be reduced. The cost of large area or giant area display system using the tubes and units which have simple construction and lower drive voltage is greatly reduced. The display of monochrome, polychrome, color, and changeable color is also achievable.