Currently there is a lack of mature reverse dimming film products on the market, due to the complexity of the process and the characteristics of the material, the successful mass production of the product is very difficult. SPD Film is under the control of the electric field to achieve a transparent state and atomization state change, the current LC Film has a positive and negative, forward Self Adhesive Film is power off atomization, power transparent; reverse dimming film in the case of power off is presented transparent state, the interface will be connected to the power supply, press the switch, power on atomization, power off is transparent. P D L C F I L M…