Invention Grant
- Patent Title: Electromagnetic shielding film and optical filter
- Patent Title (中): 电磁屏蔽膜和滤光片
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Application No.: US12116305Application Date: 2008-05-07
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Publication No.: US08426749B2Publication Date: 2013-04-23
- Inventor: Ryuji Saneto , Megumi Sekiguchi , Hiroshi Ishizuka
- Applicant: Ryuji Saneto , Megumi Sekiguchi , Hiroshi Ishizuka
- Applicant Address: JP Tokyo
- Assignee: Fujifilm Corporation
- Current Assignee: Fujifilm Corporation
- Current Assignee Address: JP Tokyo
- Agency: Young & Thompson
- Priority: JP2007-124696 20070509
- Main IPC: H05K9/00
- IPC: H05K9/00

Abstract:
An electromagnetic shielding film comprises a conductive portion and an opening portion, and a moire preventing part is formed in the opening portion. The moire preventing part may be formed approximately at the center of the opening portion, and may be formed on a line connecting intersections facing each other in the conductive portion in the mesh pattern. The moire preventing part may have a substantially circular planar shape or a polygonal planar shape (such as a quadrangular, pentagonal, hexagonal, or octagonal shape). Of course the moire preventing part may have an at least partially curved planar shape. The electromagnetic shielding film preferably satisfies the inequality 0.1 Sa≦Sb≦5.0 Sa, in which Sa is the area of the intersection of the conductive portion and Sb is the area of the moire preventing part.
Public/Granted literature
- US20090126984A1 ELECTROMAGNETIC SHIELDING FILM AND OPTICAL FILTER Public/Granted day:2009-05-21
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