Invention Grant
- Patent Title: Electromagnetic shielding sheet
- Patent Title (中): 电磁屏蔽片
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Application No.: US10519935Application Date: 2003-08-08
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Publication No.: US07642469B2Publication Date: 2010-01-05
- Inventor: Fumihiro Arakawa , Yasuhiko Ishii , Daisuke Hashimoto , Yukihiro Kyoden , Eiji Ohishi
- Applicant: Fumihiro Arakawa , Yasuhiko Ishii , Daisuke Hashimoto , Yukihiro Kyoden , Eiji Ohishi
- Applicant Address: JP Tokyo
- Assignee: Dai Nippon Printing Co., Ltd.
- Current Assignee: Dai Nippon Printing Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oliff & Berridge, PLC
- Priority: JP2002-230843 20020808
- International Application: PCT/JP03/10172 WO 20030808
- International Announcement: WO2004/016061 WO 20040219
- Main IPC: H05K9/00
- IPC: H05K9/00

Abstract:
An electromagnetic shielding sheet is capable of shielding electromagnetic radiation generated by a display, has a proper transparency and uniformly distributed meshes, prevents the occurrence of white and/or black spot defects and linear defects and glaring, and ensures the satisfactory visibility of images. The electromagnetic shielding sheet has a conductive structure (109) having lines (107) having straight parts of widths (W) in the range of C(1±30%), where C is a predetermined value. The radius (r) of curvature of a side surface (107S) extending between the upper side (107U) and the lower side (107B) of a bank in a section of the lines (107) in a plane perpendicular to the transparent sheet meet a condition expressed by: 1.5t≦r≦3.0t, where t is the thickness of the conductive structure (109).
Public/Granted literature
- US20050244608A1 Electromagnetic wave shielding sheet Public/Granted day:2005-11-03
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