1 5/8" thick state of the art "Light Master" has its origins in TFT-LCD technology, which is also the basis of the LCM technology.

Using advanced technology, we have completely replaced and rendered obsolete the traditional sign board. For example, a traditional light box uses between three and four fluorescent tubes at the back of the box to illuminate an image.

This also requires significant space for the entire light box, and requires the frame to be thicker and heavier.
The Light Master series, allows for quick installation, possesses slim dimensions, homogenous brightness, and an easy-to-change film (from 3-5 minutes) by using the flip up frame design.