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:
Jan. 18, 2011
Filed:
Jun. 30, 2004
Adrianus Sempel, Waalre, NL;
Pieter J. Snijder, Valkenswaard, NL;
Adrianus Sempel, Waalre, NL;
Pieter J. Snijder, Valkenswaard, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A display device has an array of display elements () each driven by an input provided on a data conductor (). These inputs are generated by data conductor addressing circuitry () which has a plurality of controllable driver circuits (), each for providing an input to an associated data conductor. The number of controllable driver circuits is at least one greater than the number required for providing data to all data conductors. A reference driver circuit () is used for calibrating at least one of the controllable driver circuits whilst the other controllable driver circuits provide inputs to the data conductors. This provides a reduction in the spread of driver circuit outputs by calibration of the driver circuits using a reference driver circuit.