Title:
【発明の名称】陰極線管の発光スクリーン組立体を製造する方法
Document Type and Number:
Japanese Patent JP2002503018
Kind Code:
A
Abstract:
The invention relates to a method of manufacturing a luminescent screen structure 22 with a light-absorbing matrix 23, having a plurality of substantially equally sized openings therein, on an inner surface of a CRT faceplate panel 12. A color selection electrode 24 is spaced a distance, Q, from the inner surface. The method includes providing a first photoresist layer 50, whose solubility is altered when it is exposed to light, on the inner surface of the faceplate panel 12. The first photoresist layer 50 is exposed to light from two symmetrically located source positions +G and -G, relative to a central source position, 0. Then the more soluble regions 54 of the photoresist layer 50 are removed, overcoated with a light-absorbing material 58 and developed to remove the retained, less soluble regions 52 of the first photoresist layer with the light-absorbing material thereon. First guardbands 60 of light-absorbing material remain on the interior surface of the faceplate panel 12. The process is repeated twice more, using second and third photoresist layers 70 and 90 and two asymmetrically located light source positions +B, -B and +R, -R, respectively to produce second and third guardbands 80 and 100.
Inventors:
La Perta, Richard
Golog, Istvan
Golog, Istvan
Application Number:
JP2000530925A
Publication Date:
January 29, 2002
Filing Date:
January 21, 1999
Export Citation:
Assignee:
Thomson Licensing Society Anonymous
International Classes:
H01J9/227; H01J29/32; (IPC1-7): H01J9/227
Attorney, Agent or Firm:
Tadahiko Ito