There is very low power consumption when the backlight is on. The EL panel only uses 0.1~0.2mA/cm2, and the life time of the product is greater than 10,000 hours. The non-recurring engineering charge is very low, and the EMI, RFI, and ESD shielding can be combined together with the membrane switch. The LED and EL panel can be combined together in the membrane switch, so there will be point light and area light source at the same time. The surface of the switch area can be embossed or flat.