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. 11, 1989
Filed:
Dec. 31, 1986
Applicant:
Inventors:
Scott H Holmberg, San Ramon, CA (US);
Richard A Flasck, San Ramon, CA (US);
Assignee:
Alphasil, Inc., Fremont, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
445-3 ; 340784 ; 445 24 ; 437-8 ;
Abstract
Subdivided pixels are provided with interconnected and hence redundant row and column bus lines to reduce fatal defects. The respective redundant row and column lines also can be interconnected between subpixels to further reduce defects. One defective subpixel is generally an acceptable non-fatal defect, since the rest of the subpixels are still operative. The subpixels also can be formed with common row and column bus lines. The pixels or subpixels can be connected in a serial serpentine pattern to test all row or all column bus lines at once. After testing, the serial connections are broken.