(19)

(11)

EP 1 550 146 A2

(12)

(88) Date of publication A3: 06.05.2005 (43) Date of publication: 06.07.2005 Bulletin 2005/27 (21) Application number: 03712541.6 (22) Date of filing: 09.04.2003

(51) International Patent Classification (IPC)7: H01J 61/20, H01J 61/72, H01J 61/35, C03C 3/076, C03C 4/20 (86) International application number: PCT/IB2003/001433 (87) International publication number: WO 2003/085695 (16.10.2003 Gazette 2003/42)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR Designated Extension States: AL LT LV MK (30) Priority: 11.04.2002 EP 02076442 08.07.2002 EP 02077718 (71) Applicant: Koninklijke Philips Electronics N.V. 5621 BA Eindhoven (NL)

(72) Inventors: VAN DER POL, Adrianus, J., H., P. NL-5656 AA Eindhoven (NL) GEERDINCK, Leonie, M. NL-5656 AA Eindhoven (NL) VOSSEN, Engelbertus, C., P., M. NL-5656 AA Eindhoven (NL) SNIJKERS-HENDRICKX, Ingrid, J., M. NL-5656 AA Eindhoven (NL) BLASIG, Roland NL-5656 AA Eindhoven (NL) KRIJNEN, Simon NL-5656 AA Eindhoven (NL) VAN DEN BAKEL, Ronald, A. NL-5656 AA Eindhoven (NL) (74) Representative: Rolfes, Johannes Gerardus Albertus  PhilipsIntellectual Property & StandardsP.O. Box 220 5600 AE Eindhoven 5600 AE Eindhoven (NL)