... advanced surface acoustic wave screen, resolution : 4096*4096, single-point touch: 50 million times. The response is more rapid and the ... life is the longest, the touch response strength is less than 3 ounces, the same surface ... , Maos hardness test is 7-grade. Display: choose 20.1-inch LCD panel, Resolution(pixel) WSXGA: 1680 x 1050, Aspect Ratio: 16 ...