The built-in pico projector gives the screen a resolution of 854 by 840 pixels, you can flip it around to project your output on a 60-inch display. You can use the accessory with any smartphone which has an available MHL or HDMI port.
Watch the LightPad in action in the following demo video:
The next generation of devices promise high-definition resolutions of 1280 by 720 pixels and we can expect this to go full HD in the future.
source - Engadget