Optrex America Inc. has developed capacitive touch switch technology that detects variations in position and command, eliminates air gaps and reduces the number of layers required. Optrex says that this technology offers the highest standards of optical performance with exceptional ease of design for human machine interfaces, handheld terminals, gaming, medical equipment, and point-of-sale and mobile applications. The capacitive touch screens respond to fingertip input control without requiring application of any pressure. The structures are robust and the sensor elements will not wear out. Lifetimes are approximately 100 million touches. Optrex states that its new capacitive touch switch solutions provide outstanding clarity and ease of design. Improved visibility results from less reflectivity and higher transparency of the image displayed through the touch panel and allows for a thinner touch screen in front of the LCD.