EP 0014004 B1 19830518 - PROCESS FOR MAKING THE LUMINESCENT STRIPES ON A SCREEN OF A COLOUR DISPLAY TUBE
Title (en)
PROCESS FOR MAKING THE LUMINESCENT STRIPES ON A SCREEN OF A COLOUR DISPLAY TUBE
Publication
Application
Priority
DE 2902239 A 19790120
Abstract (en)
[origin: US4284695A] A phosphor-containing layer (2) deposited on the glass faceplate (1) of a color-picture tube is hardened by exposure to light in two steps in order to obtain an amount of light varying from point to point on the glass faceplate and to realize sharp-edged phosphor strips having only slight width variations. In the first step, the main portion of the amount of light required to harden the layer is allowed to fall on the layer without affecting the position-dependent light distribution, and in the second step the layer is exposed essentially to the position-dependent amount of light required to complete the necessary total amount of light.
IPC 1-7
IPC 8 full level
H01J 9/227 (2006.01)
CPC (source: EP US)
H01J 9/2273 (2013.01 - EP US)
Designated contracting state (EPC)
BE FR GB IT NL
DOCDB simple family (publication)
EP 0014004 A1 19800806; EP 0014004 B1 19830518; DE 2902239 A1 19800724; DE 2902239 C2 19830120; FI 800134 A 19800721; JP S5598438 A 19800726; US 4284695 A 19810818
DOCDB simple family (application)
EP 80200003 A 19800102; DE 2902239 A 19790120; FI 800134 A 19800116; JP 369080 A 19800118; US 10938780 A 19800103