Shielded windows

Shielding of cut outs in enclosures

Cut outs in enclosures for display systems are quite difficult to shield. Therefore the industry offers so called EMC- or shielded windows.

Different types available

We offer three different types of transparent shielded windows:

  • fully laminated mesh windows with flying mesh all around
  • die casted plastic windows with embedded mesh
  • glas- or plastic window with electrically conductive coating (ITO = Indium Tin Oxide)

Shielded windows

Shielded windows according to customer specifications

Main applications for shielded windows are display systems like LCD-, LED-, plasma displays, monitors and information systems. As such windows will always be manufactured according customer specifications, it is suggested to select as follows:

  • Selection of the base material (glass or plastic)
  • Selection of the colour of the window (transparent, green, red, blue etc.)
  • Definition of the size and the thickness
  • Construction of the window (butt edge or step construction)
  • Definition of the requested shielding attenuation
  • Definition of the anti-reflection requested (Multi-layer coating or chemical etching)
  • Selection of the gasket type to be used for connecting the window to the chassis

Product properties of shielded windows

laminated die casted laminated glass laminated plastic
Shielding effectiveness ++ + + +
Transmission + + ++ ++
Scratch resistance ++ -- ++ --
Break resistance - ++ - **
Variations of antireflection ++ + ++ ++
Weight - ++ - ++
Methods of contacting ++ + - -

++ = very good        + = good        - = bad        -- = very bad