Laser etch isn’t the only way to create backlit rubber keypads or keyboards. We also create back lighting on silicone rubber keypads or keyboards with a negative printing process.
Producing backlit keypads by applying a negative print is much cheaper than laser etching as there are less processes involved.
First the keypad or keyboard is moulded in a translucent grade of silicone rubber, then the surface of the keys is printed in white or the legend colour. Following this the keys are printed again with a coloured silicone print with voids where light transmission is required.