Our membrane switches have backlighting options with technologies such as Luminous powder or EL. EL luminous film is made through a special process with extensive use of electroluminescent sheets. Tortai Technology can offer our customers kinds of different colors of EL membrane switch, the most common choice are the blue, blue-green, green .

 

The thickness of membrane switch between 1.0mm and 2.5mm or so. At Tortai, we use the EL light-emitting chip are planar, which thickness are 0.12 - 0.4 mm, the overall thickness of the products complete meet customer's requirements.

 

EL Technical parameters :

Electrical Operating Voltage 30-250VAC

Best Operating voltage 90-110VAC

Operating frequency 50~5000Hz

Best Operating frequency 400-1200Hz

Current 0.14mA/cm2 max 100V 400Hz

Power 2mw/ cm2 max

Lighting Initial color Blue 50cd/ cm2 green 80cd/ m2 100V 400Hz

Half-life 3000Hr

Life Time 25000Hr Inverter drive

Environmental Operation Temperature -50'C--60'C 5cycles/30min

Storage Temperature -65'C--80'C