(19)
(11) EP 1 774 558 A1

(12)

(43) Date of publication:
18.04.2007 Bulletin 2007/16

(21) Application number: 04757423.1

(22) Date of filing: 05.08.2004
(51) International Patent Classification (IPC): 
H01J 29/88(2006.01)
(86) International application number:
PCT/US2004/025292
(87) International publication number:
WO 2006/022692 (02.03.2006 Gazette 2006/09)
(84) Designated Contracting States:
DE FR GB

(71) Applicant: Thomson Licensing SAS
92100 Boulogne-Billancourt (FR)

(72) Inventors:
  • PARSAPOUR, Farzad
    Bartlett, TN 38135 (US)
  • GUNTURI, Bhanumurthy, Venkatrama, Subrahmanya
    Bear, DE 19701 (US)
  • COLBERT, Steven, Anthony
    Philadelphia, PA 19104 (US)
  • COLLINS, Brian, Thomas
    Lititz, PA 17543 (US)

(74) Representative: Ruellan-Lemonnier, Brigitte 
Thomson, European Patent Operations, 46 Quai Alphonse Le Gallo
92648 Boulogne Cedex
92648 Boulogne Cedex (FR)

   


(54) CATHODE RAY TUBE HAVING AN ENHANCED INTERNAL NEUTRAL DENSITY FILTER