31″ Transparent EMI/RFI Shielding Film

Excellent Performance

Electrical Performance Test Pictures

Technical Parameter

Item			Unit	Product Features	Check methods	Remark
Product number			/	CNE******EMI-V*.*	/	/
Stackup		Upper protection layer	µm	50	Micrometer	PE
		Cu mesh layer	µm	2		Surface blackening
		Base film	µm	100		PET
		Bottom protection layer	µm	50		PET
Mesh pattern			/	45 degree diagonal square	/	/
Space of mesh			µm	200	Quadratic	2X
Line width of mesh			µm	9±3		2X
Transparence			%	＞80%	Spectrophotometric colorimeter	550nm
Sheet resistance of mesh			Ω/□	0.2～0.4Ω	Four point probe	/
Adhesion between PET and Cu			/	5B	Baguette test	/
Reliability	High temperature and high humidity resistance change rate		%	≤10	Constant temperature and humidity Experimental chamber	Temperature 85℃, humidity 85℃, 500H
	High temperature and high humidity permeability rate of change		%	≤10
	High temperature and high humidity resistance change rate		%	≤10	UV aging chamber	Light source UVA-340. Irradiation intensity: 0.89W/m2@320nm. Black standard temperature: (70±2)℃. Irradiation mode: full time irradiation
	High temperature and high humidity resistance change rate		%	≤10

Iterative Method

The product is made of Protective Film (PE) + Blackened Layer + Cu Layer + Material Layer (PET) + Protective Film (PET).

Shielding Applications

◆ Hospitals (shielding of NMR, EMG and EEG equipment)；
◆ Shielding of development laboratories in industry；
◆ Data security of computers；
◆ Shielding of executive rooms (prevents spying by microphones or electronic bugs outside the building)；
◆ Shielding against stray electromagnetic radiation；
◆ Electronic signal shielding for consumer electronics (smartphones, tablets, touch panels, digital cameras,LCD TVs, etc.).

Excellent Physical Properties

High and low temperature test
The industry standard is: -30°C to +70°C, our Metal Mesh can reach -85°C to +85°C, and it can be used normally in extreme environments;
Environmental test: The test product functions normally at -80°C, 100°C (boiling water), and -235°C.

Cyclic bend test
Bending degree: from 0~90~180 degrees (cyclic bending), bending diameter: 4mm, 8mm;
After cycling 10k, 50k and 200k times, the resistance value of the display channel did not change.

Loop folding test
When the bending diameter is ≤4mm, and the bending angle is folded from 20 degrees to 180 degrees, the metal mesh can be used normally, and the folding touch can be realized.