Ultra-thin light box is divided into open and non-open types. According to the main materials of open ultra-thin light box, it is divided into:

1. Special frame aluminum alloy profile;

2. Light guide plate (reflection points formed by screen printing or engraving are on acrylic)

3. Lamps (ultra-thin light box ballast and lamp tube or LED light bar for T4 or T5, power cord and switch).

4. Backboard (usually KT board or PVC board)

5. Picture protection layer (usually the thinnest transparent PS organic board)

6. Other accessories (screws/hooks/corner codes, etc. )

What can't be opened is that the material above lacks the frame and back plate, but the requirements for acrylic and LED light sources are higher.