How do I design the display window of a shielded enclosure to maintain shielding effectiveness?

Designing the display window of a shielded enclosure to maintain shielding effectiveness uses an optically transparent, electrically conductive window that allows the operator to see the display (LCD, LED) inside the enclosure while blocking electromagnetic radiation from leaking through the opening. The window technologies: conductive mesh (a fine metal mesh laminated between glass or plastic layers; the mesh is invisible to the eye at normal viewing distance (mesh line spacing less than 200 micrometers); provides 30-60 dB of shielding effectiveness depending on mesh density and frequency; visual transparency: 60-80%; the mesh also acts as a Faraday cage for the window area); ITO (Indium Tin Oxide) coating (a transparent conductive oxide sputtered onto the glass surface; ITO is optically transparent (greater than 85% transmission) and electrically conductive (sheet resistance: 5-100 ohms per square); provides: 20-40 dB of shielding effectiveness (limited by the relatively high sheet resistance); best for moderate shielding requirements where high optical transparency is needed), and conductive mesh + ITO hybrid (combining a fine mesh with an ITO coating provides: 40-70 dB of shielding with 60-75% optical transparency; the mesh handles the lower frequencies (where the ITO's shielding is limited) and the ITO fills in the gaps between mesh lines). Window mounting: the conductive window must make 360-degree electrical contact with the enclosure panel around its entire perimeter. Use a conductive gasket (BeCu finger stock, conductive elastomer) between the window frame and the panel. Any gap in the perimeter contact degrades the shielding. The gasket must be compressed to ensure low contact resistance (less than 10 milliohms).