Illumination module
http://en.wikipedia.org/wiki/Backlight
Optical sheet
Light guide plate
en.wikipedia.org/wiki/Rechargeable_battery
Light source device
Beam splitting film
http://en.wikipedia.org/wiki/Mobile_device
Projection device
http://en.wikipedia.org/wiki/Zoom_lens
http://en.wikipedia.org/wiki/Power_supply
http://en.wikipedia.org/wiki/USB
Light source/wavelength conversion
Light source module
Light guide plate./light source module
Brightness enhancement film
http://en.wikipedia.org/wiki/Traffic_light
Lighting condensing film
