EP 0001673 A3 19790516 - COLOUR SELECTION ELECTRODE WITH ELONGATE APERTURES IN A COLOUR DISPLAY TUBE
Title (en)
COLOUR SELECTION ELECTRODE WITH ELONGATE APERTURES IN A COLOUR DISPLAY TUBE
Publication
Application
Priority
NL 7711713 A 19771026
Abstract (en)
[origin: EP0001673A2] By using in colour display tube a colour selection electrode comprising a metal plate having a large number of rows of apertures which are separated from each other by bridges and are elongate in the direction of the rows, which rows extend in the direction of the phosphor lines on the display screen and in which the last aperture at the two ends of each row is at least as long as the penultimate aperture at the two ends of each row and the short sides of the last aperture of all rows situated at the extreme ends are situated on curved lines which follow the edge of the colour selection electrode, a smooth picture edge and also a good adhesion of the ends of the phosphor lines to the display window are obtained.
IPC 1-7
IPC 8 full level
H01J 29/07 (2006.01)
CPC (source: EP)
H01J 29/076 (2013.01)
Citation (search report)
- FR 2198259 A1 19740329 - TOKYO SHIBAURA ELECTRIC CO [JP]
- US 3925700 A 19751209 - SAITO YUJI
- [A] FR 2310628 A1 19761203 - RCA CORP [US]
- [A] FR 2121826 A3 19720825 - ERGON SPA [IT]
- [A] US 3766419 A 19731016 - BARBIN R
Designated contracting state (EPC)
BE DE FR GB NL
DOCDB simple family (publication)
EP 0001673 A2 19790502; EP 0001673 A3 19790516; EP 0001673 B1 19810107; CA 1121857 A 19820413; DE 2860435 D1 19810226; ES 474452 A1 19791016; IT 1099429 B 19850918; IT 7829012 A0 19781023; JP S5471556 A 19790608; NL 7711713 A 19790501
DOCDB simple family (application)
EP 78200260 A 19781023; CA 313787 A 19781019; DE 2860435 T 19781023; ES 474452 A 19781024; IT 2901278 A 19781023; JP 13037478 A 19781023; NL 7711713 A 19771026