Global Patent Index - EP 1098348 A2

EP 1098348 A2 20010509 - Color cathode ray tube and manufacture for contrast improvement

Title (en)

Color cathode ray tube and manufacture for contrast improvement

Title (de)

Farbkathodenstrahlröhre und Verfahren zur Kontrastverbesserung

Title (fr)

Tube cathodique couleur et procédé d'amélioration du contraste

Publication

EP 1098348 A2 20010509 (EN)

Application

EP 00403032 A 20001031

Priority

IT MI992325 A 19991105

Abstract (en)

The invention relates to a method of manufacturing a colour cathode-ray tube, in which a graphite coating (22) of variable thickness is interposed between the glass faceplate (2) of the tube and the phosphors (25, 26, 27) intended to reproduce a colour image. The purpose of the coating (22) is to reduce the transmission of the glass, of which the faceplate is composed, to a defined value. <IMAGE>

IPC 1-7

H01J 9/227; H01J 29/32

IPC 8 full level

H01J 9/227 (2006.01); H01J 29/32 (2006.01); H01J 9/24 (2006.01)

CPC (source: EP KR)

H01J 9/2278 (2013.01 - EP); H01J 9/24 (2013.01 - KR); H01J 29/327 (2013.01 - EP)

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

EP 1098348 A2 20010509; EP 1098348 A3 20020717; CN 1169183 C 20040929; CN 1295335 A 20010516; IT 1313925 B1 20020926; IT MI992325 A0 19991105; IT MI992325 A1 20010505; JP 2001167712 A 20010622; KR 20010051401 A 20010625; MX PA00010841 A 20030606; MY 136611 A 20081031; TW 501367 B 20020901

DOCDB simple family (application)

EP 00403032 A 20001031; CN 00135521 A 20001104; IT MI992325 A 19991105; JP 2000334711 A 20001101; KR 20000064858 A 20001102; MX PA00010841 A 20001103; MY PI20005190 A 20001106; TW 89121584 A 20001016