EP 0654811 A1 19950524 - Color picture tube having a box-like mask-frame assembly.
Title (en)
Color picture tube having a box-like mask-frame assembly.
Title (de)
Farbbildröhre mit dosenförmiger Lochmaskenrahmenstruktur.
Title (fr)
Tube image couleur muni d'une structure masque-cadre en forme de boîte.
Publication
Application
Priority
IT MI932460 A 19931119
Abstract (en)
An improved color picture tube (8) includes an evacuated envelope (10) having a rectangular faceplate panel (12). The panel includes a viewing screen (22) on an inner surface thereof and a mask-frame assembly (24, 25) mounted therein. The mask-frame assembly includes a shadow mask (24) attached to a peripheral frame (25). The improvement comprises the frame comprising a box-like enclosure that extends around the periphery of the mask. The frame material has approximately the same thickness as does the shadow mask material. <IMAGE>
IPC 1-7
IPC 8 full level
H01J 29/07 (2006.01)
CPC (source: EP KR)
H01J 29/073 (2013.01 - EP KR); H01J 2229/0722 (2013.01 - EP KR); H01J 2229/0772 (2013.01 - EP)
Citation (search report)
- [Y] US 5072151 A 19911210 - SPINA PAOLO [IT]
- [A] US 4700105 A 19871013 - ITO HIDEYA [JP]
- [A] US 5021707 A 19910604 - BAUDER RICHARD C [US]
- [Y] PATENT ABSTRACTS OF JAPAN vol. 5, no. 159 (E - 77)<831> 14 October 1981 (1981-10-14)
Designated contracting state (EPC)
DE FR
DOCDB simple family (publication)
EP 0654811 A1 19950524; CN 1111393 A 19951108; IT 1265203 B1 19961031; IT MI932460 A0 19931119; IT MI932460 A1 19950519; JP H07192646 A 19950728; KR 950015500 A 19950617
DOCDB simple family (application)
EP 94117908 A 19941112; CN 94118412 A 19941118; IT MI932460 A 19931119; JP 32178394 A 19941118; KR 19940030001 A 19941116