Global Patent Index - EP 1048048 A1

EP 1048048 A1 2000-11-02 - COLOR SELECTION ELECTRODE FOR COLOR DISPLAY TUBES

Title (en)

COLOR SELECTION ELECTRODE FOR COLOR DISPLAY TUBES

Title (de)

FARBWAHLELEKTRODE FÜR EINE FARBBILDRÖHRE

Title (fr)

ELECTRODE DE SELECTION DE COULEUR POUR TUBES CATHODIQUES DE VISUALISATION COULEUR

Publication

EP 1048048 A1 (EN)

Application

EP 99940179 A

Priority

  • EP 99940179 A
  • EP 9905772 W
  • EP 98202789 A

Abstract (en)

[origin: WO0011701A1] The invention relates to a color selection electrode (18) for use in a color cathode ray tube (1), in which the color selection electrode (18) comprises a frame (9) and a mask (20). The frame (9) comprises a pair of mutually opposed support bars (19), metal members (21) and a pair of resilient support members (22) attached between the support bars (19). The metal members (21) have a thermal expansion coefficient smaller than the resilient support members (22) and are connected to the resilient support members (22) on surfaces thereof facing the display screen (8). This construction prevents the mask (20) from being tensed beyond the elastic yield limited and from becoming permanently plastically deformed during further thermal processing of the cathode ray tube (1).

IPC 1-7 (main, further and additional classification)

H01J 29/07

IPC 8 full level (invention and additional information)

H01J 29/07 (2006.01)

CPC (invention and additional information)

H01J 29/073 (2013.01); H01J 2229/0722 (2013.01)

Citation (search report)

See references of WO 0011701A1

Designated contracting state (EPC)

DE FR GB NL

EPO simple patent family

WO 0011701 A1 20000302; EP 1048048 A1 20001102; JP 2002523868 A 20020730; TW 412773 B 20001121

INPADOC legal status


2005-12-28 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20050611

2004-05-12 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION):

- Ref Legal Event Code: RBV

- Designated State(s): DE FR GB NL

2003-01-29 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20021213

2000-11-02 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000904

2000-11-02 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE