Browse Prior Art Database

Two-Material Shields for the Reduction of Magnetic-Field Emanations in Visual Display Units

IP.com Disclosure Number: IPCOM000036068D
Original Publication Date: 1989-Sep-01
Included in the Prior Art Database: 2005-Jan-28

Publishing Venue

IBM

Related People

Authors:
Pitts, OD Wilson, PM [+details]

Abstract

Disclosed is a general method for constructing a shielding enclosure to reduce the magnetic-field emanations associated with the electronic operation of a Visual Display Unit (VDU). This shield construction consists of an appropriately ordered layering of two materials, one being a high-conductivity (high-s) material such as copper, and the other being a high-permeability (high-m material such as nickel.