http://en.wikipedia.org/wiki/Projector
Optical touch-control display device
en.wikipedia.org/wiki/Power_supply
Light guide plate
Brightness enhancement sheet
Turnover bracket
Light source device
http://en.wikipedia.org/wiki/Dynamic_aperture
Illumination module
http://en.wikipedia.org/wiki/Backlight
Optical sheet
en.wikipedia.org/wiki/Rechargeable_battery
Beam splitting film
http://en.wikipedia.org/wiki/Mobile_device
Projection device
http://en.wikipedia.org/wiki/Zoom_lens
