The device has a display with three full subpixels per pixel, resulting in a sharp and crisp picture. Pixels in some displays (like AMOLED) share one subpixel to preserve space. This can result in a less crisp, slightly blurred image.
14-inch USB Mobile LCD Monitor
Sharp PN-K322B Touchscreen LCD Monitor
85% have it
3. screen size
The bigger the screen size is, the better the user experience.