Transparent conductive circuits, also known as capacitive touch switches, are generally divided into two types: one is a touch circuit etched with ITO conductive film, and the other is printed with transparent conductive ink (PEDOT). ITO conductive film etching has higher light transmittance, but it is also more expensive. Printed transparent conductive ink (PEDOT) is relatively cheaper, has lower light transmittance, and can meet the needs of most applications. Currently, the touch membrane switches used in the home appliance and automotive electronics industries are all made with transparent conductive ink (PEDOT).
