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:
Jul. 15, 2003
Filed:
Sep. 08, 2000
Denso Corporation, Kariya, JP;
Abstract
A display panel driving system, constituted in such a manner that the occurrence of a display irregularity on the display panel can be suppressed without regard to the characteristics or the driving condition of the display panel, is disclosed. An up-counter counts the number of the picture elements which emit light when the EL display panel is horizontally scanned, and the counting result thus obtained is outputted as an addressing signal to an EEPROM. Stored in the EEPROM are data maps MAP, MAP in which pulse width data are written at a plurality of addresses corresponding to the counting ranges of the up-counter. A signal generation means outputs a blank signal BLK which determines the pulse width of a data voltage on the basis of the pulse width data addressed by the up-counter.