Light guide plate
http://en.wikipedia.org/wiki/Touchpad
Light-emitting device
Light source module
Projector casing
http://en.wikipedia.org/wiki/Backlight
Fixation of a projection screen
Projection displaying system
Lighting-up system
Dynamic mask
http://en.wikipedia.org/wiki/Fuel_cell
Brightness enhancement film
http://en.wikipedia.org/wiki/Lens_(optics)
http://en.wikipedia.org/wiki/Color_calibration#Display
Double-lamp illuminating system
http://en.wikipedia.org/wiki/Illumination_(lighting)
