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:
Aug. 15, 1989
Filed:
May. 28, 1987
Applicant:
Inventor:
James F Farrell, Downsview, CA;
Assignee:
Litton Systems Canada Limited, Rexdale, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ; H05B / ;
U.S. Cl.
CPC ...
313500 ; 357 55 ; 437205 ; 437906 ;
Abstract
A display for full color video includes light emitting diodes (LED's) arranged to increase LED density and thereby achieve enhanced resolution. The matrix is of the type that includes a plurality of physically separate, addressable dice fixed to a substrate. The display of the invention achieves increased density by utilizing dice of at least two distinct predetermined heights which are positioned onto the substrate in a predetermined pattern whereby the heights of adjacent dice differ. In this way, the closeness of inter-die spacing is not limited by the size of a positioning tool for grasping dice adjacent their upper portions.