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. 31, 2006
Filed:
Dec. 18, 2002
Applicants:
Alan G Knapp, Crawley, GB;
Iain M. Hunter, Brighton, GB;
Inventors:
Alan G Knapp, Crawley, GB;
Iain M. Hunter, Brighton, GB;
Assignee:
Koninklijke Philips Electronics N. V., Eindhoven, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 3/30 (2006.01);
U.S. Cl.
CPC ...
Abstract
An active matrix electroluminescent display device has an array of pixels (), each pixel having a plurality of current-driven display elements (), for example comprising organic electroluminescent material, connected in a series arrangement with one another and with drive means () operable to control the current through the respective series arrangement. By sub-dividing each pixel in this way, the high voltage drops, that can occur along power supply lines, are reduced thus improving the uniformity of the light outputs from the display elements across the display area.