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:
Nov. 06, 2007
Filed:
Feb. 21, 2003
David Andrew Fish, Haywards Heath, GB;
Mark Jonathan Childs, Sutton, GB;
Jason Roderick Hector, Redhill, GB;
Nigel David Young, Redill, GB;
David Andrew Fish, Haywards Heath, GB;
Mark Jonathan Childs, Sutton, GB;
Jason Roderick Hector, Redhill, GB;
Nigel David Young, Redill, GB;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
Physical barriers () are present between neighbouring pixels () on a circuit substrate () of an active-matrix electroluminescent display device, particularly with LEDs () of organic semiconductor materials. In order to reduce parasitic capacitance in the circuit substrate, the invention forms these barriers () with metal or other electrically conductive material () that provides at least part of the signal lines () at a higher level than the circuit substrate (). This conductive barrier material () is connected to the matrix circuitry within the substrate () but is insulated () at least at the sides adjacent to the LEDs (). Preferably, an inter-capacitance guard line () is included in the circuit substrate () between the signal lines () and the circuitry in the substrate ().