Title:
ELECTROMAGNETIC WAVE SHIELDING SHEET
Document Type and Number:
WIPO Patent Application WO/2004/016061
Kind Code:
A1
Abstract:
An electromagnetic wave shielding sheet for shielding an electromagnetic wave produced from a display, providing a proper transparency and a uniform shading on meshes, preventing white and/or black spot defects, linear defects and glaring, and recognizing an image on a display satisfactorily. The width (W) at a straight-line segment of the line (107) of a conductive material layer (109) is within ±30% of a specified value. The radius of curvature (r), with respect to the thickness (t) of the conductive material layer (109), of a bank side surface (107S) connecting an upper bottom (107U) and a lower bottom (107B) in a line section shape formed, at a straight-line segment, by the orthogonal crossing between the line (107) of the conductive material layer (109) and a transparent substrate is set to be 1.5t ≤ r ≤ 3.0t. With the above line width and/or the above radius of curvature satisfied, a mesh-form conductive material layer is overlaid on one surface of a transparent substrate via an adhesive.
Inventors:
ARAKAWA FUMIHIRO (JP)
ISHII YASUHIKO (JP)
HASHIMOTO DAISUKE (JP)
KYODEN YUKIHIRO (JP)
OHISHI EIJI (JP)
ISHII YASUHIKO (JP)
HASHIMOTO DAISUKE (JP)
KYODEN YUKIHIRO (JP)
OHISHI EIJI (JP)
Application Number:
PCT/JP2003/010172
Publication Date:
February 19, 2004
Filing Date:
August 08, 2003
Export Citation:
Assignee:
DAINIPPON PRINTING CO LTD (JP)
ARAKAWA FUMIHIRO (JP)
ISHII YASUHIKO (JP)
HASHIMOTO DAISUKE (JP)
KYODEN YUKIHIRO (JP)
OHISHI EIJI (JP)
ARAKAWA FUMIHIRO (JP)
ISHII YASUHIKO (JP)
HASHIMOTO DAISUKE (JP)
KYODEN YUKIHIRO (JP)
OHISHI EIJI (JP)
International Classes:
B32B7/12; B32B15/04; H05K9/00; (IPC1-7): H05K9/00; B32B3/24; B32B15/08; G09F9/00
Foreign References:
| JP2002190692A | 2002-07-05 | |||
| JPH1075087A | 1998-03-17 | |||
| JP2001168574A | 2001-06-22 | |||
| JP2002368482A | 2002-12-20 | |||
| JP2000286594A | 2000-10-13 | |||
| JP2000137441A | 2000-05-16 | |||
| JPH11186785A | 1999-07-09 |
Attorney, Agent or Firm:
Yoshitake, Kenji (Room 323 Fuji Bldg., 2-3, Marunouchi 3-chom, Chiyoda-ku Tokyo, JP)
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