Title:
SUBSTRATE WITH ELECTROMAGNETIC SHIELD FILM
Document Type and Number:
WIPO Patent Application WO/2003/037056
Kind Code:
A1
Abstract:
A substrate with a well−balanced electromagnetic shield film, excellent in electromagnetic shielding performance, enabling the user to easily see the image display thanks to high visible light transmittance, and low reflectance, and excellent humidity resistance. This substrate with an electromagnetic shield film has, over the surface of a transparent substrate, a transparent conductive film comprising seven layers of dielectric layers and silver layers alternately formed in the order from the substrate side. Each silver layer has a thickness of 18 nm or more and a silver purity of 99.999% or more. The surface resistance value of the transparent conductive film is 1.2 &ohm &sol &square or less. The visible light transmittance of the substrate is 60% or more.
Inventors:
OHNISHI TADASHI (JP)
SATO KEIJI (JP)
TSUDA YASUTAKA (JP)
TANAKA KATSUTO (JP)
SATO KEIJI (JP)
TSUDA YASUTAKA (JP)
TANAKA KATSUTO (JP)
Application Number:
PCT/JP2002/010983
Publication Date:
May 01, 2003
Filing Date:
October 23, 2002
Export Citation:
Assignee:
CENTRAL GLASS CO LTD (JP)
OHNISHI TADASHI (JP)
SATO KEIJI (JP)
TSUDA YASUTAKA (JP)
TANAKA KATSUTO (JP)
OHNISHI TADASHI (JP)
SATO KEIJI (JP)
TSUDA YASUTAKA (JP)
TANAKA KATSUTO (JP)
International Classes:
C03C17/36; H01J29/86; H05K9/00; (IPC1-7): H05K9/00; B32B15/04; C03C17/36
Foreign References:
| JP2001047549A | 2001-02-20 | |||
| JP2000252682A | 2000-09-14 | |||
| JPH11307987A | 1999-11-05 | |||
| JPS63239044A | 1988-10-05 | |||
| JP2000329934A | 2000-11-30 |
Attorney, Agent or Firm:
Shiga, Fujiya c/o Shiga, Patent Office (Ekisaikai Bldg. 1-29, Akashi-ch, Chuo-ku Tokyo, JP)
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