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. 08, 2000
Filed:
Jun. 10, 1997
Applicant:
Inventor:
Minoru Sasaki, Tokyo, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
345 92 ; 345 98 ; 345100 ;
Abstract
In a display apparatus, a switch circuit including transistors is turned off to isolate a scanning line driving circuit and scanning lines from each other, the output of the scanning line driving circuit is inspected by the output from a terminal of an inspection circuit for the scanning line driving circuit, and the switch circuit is turned on to supply the output of the scanning line driving circuit to the scanning lines to check for a disconnection or a shorting of any of the scanning lines in accordance with the presence or absence or the magnitude of the voltage change appearing across the scanning line inspection circuit.