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:
Oct. 21, 2008
Filed:
Dec. 19, 2006
Akinori Hayafuji, Yonezawa, JP;
Akinori Hayafuji, Yonezawa, JP;
Tohoku Pioneer Corporation, Yamagata, JP;
Abstract
Provided are a detection element Em used for controlling a value of a drive voltage for each light emitting element constituting a display pixel, and a leakage detection circuitwhich separates the detection element Em from a current source Iwhen this detection element Em is in a leakage state. Further provided are a pseudo leakage setup meanswith which a potential of an anode terminal in the above-mentioned detection element can be set as a pseudo leakage potential which is a potential when the detection element is in the leakage state, and an operation detection meansto verify that the leakage detection circuitoperates normally when operating the above-mentioned pseudo leakage setup means