SHADOW MASK FOR CRT - DAINIPPON PRINTING CO LTD

Title:

SHADOW MASK FOR CRT

Document Type and Number:

WIPO Patent Application WO/2000/045413

Kind Code:

A1

Abstract:

A shadow mask for CRT comprising a generally rectangular slot provided in the vicinity of the vertical coordinate axis, and a curved slot provided on an outer peripheral side away from the coordinate axis; the generally rectangular slot comprising a generally rectangular rear-side opening, a generally rectangular front-side opening worked to have a large area and a side wall tilted between the openings; the curved slot comprising a rear-side opening (11) curved so that the longitudinal opposite ends thereof are kept away from the coordinate axis, a generally rectangular front-side opening (2) worked to have a large area and side walls (3 to 6) tilted between the openings, a degree of curving of the rear-side opening of the curved slot gradually increasing in a direction away from the coordinate axis.

Inventors:

IKEGAMI TAKESHI (JP)
HATORI TOSHIHIRO (JP)

Application Number:

PCT/JP2000/000354

Publication Date:

August 03, 2000

Filing Date:

January 25, 2000

Export Citation:

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Assignee:

DAINIPPON PRINTING CO LTD (JP)
IKEGAMI TAKESHI (JP)
HATORI TOSHIHIRO (JP)

International Classes:

H01J29/07; (IPC1-7): H01J29/07

Foreign References:

JPH10241596A	1998-09-11
JPH01320738A	1989-12-26
JP2000036258A	2000-02-02