http://en.wikipedia.org/wiki/Projector
Light source module
External holder of display
http://en.wikipedia.org/wiki/Optical_film
Hanger
Dynamic mask
Diaphragm module for projector
Signal input module
http://en.wikipedia.org/wiki/Color_wheel_(optics)
http://en.wikipedia.org/wiki/Key_control
http://en.wikipedia.org/wiki/Backlight
http://en.wikipedia.org/wiki/Transmission_(mechanics)
http://en.wikipedia.org/wiki/Projection_screen
Decelerating device for projector
Touch display system
http://en.wikipedia.org/wiki/Light-emitting_diode
Fastening device
Brightness enhancement film
