... specifications products from 15-inch to 85-inch.2. Second, the effect chart 3. Third, the basic characteristics Touch media: finger, pen ... used widely, any opaque objects can two touch; the touch material thickness increase with the product size increases, the maximum ... touch area, self-assembly, commissioning ;5, support WIN7 / 8, Android2.3.6/4.0 7. Seven, structure size OTP Optical touch screen ...