LCDs; Liquid crystal display (LCD) monitors; LCD monitors; Liquid crystal displays; Liquid crystal display (LCD) projectors; Thin Film Transistor-Liquid Crystal Display (TFT-LCD) panels; OLED (Organic light emitting diode) display panels; Touch screens; Interactive touch screen terminals; Entertainment system comprising a computer, multiple image display screen, multiple input devices and a printer; Personal stereos; Calculating machines; Video displays mounted in eyeglasses; Timers