How to disable the display and button windows of the PAC (Power Controller Acoustic Control Unit)?

Shielding the display and button windows of the PAC (Power Controller Assembly) requires the use of transparent conductive materials or metal mesh. The display window should use ITO (Indium Tin Oxide) conductive glass or a transparent conductive film with a surface resistance of less than 10Ω/sq, and its edges should be connected to the housing via conductive tape or a metal frame. The button window can be fitted with a metal mesh or conductive film under a non-conductive material (such as plastic) and grounded to the housing.

For the touchscreen, shielding glass with an ITO coating should be used. All shielding layers must be reliably connected to the internal ground plane via spring contacts or conductive foam. Tests show that the shielding effectiveness of the treated display window at 1GHz is greater than 20dB, and that of the button window is greater than 30dB, meeting the IEC61000-4-3 radiated immunity test requirements without affecting display or operation.