The general LED screens in the market, their weights are always more than 10 kg, giving rise to constructors’ safety loophole and difficulties in installation and transportation. Simplification becomes design manifestation mode. The screen only keeps supporting framework in mechanical part through precise calculation and applies self-dependent innovation in locking construct to make stronger. Specially beautifying framework in thickness and shape shows modern conciseness. Through CNC scientific digital process, the error is within 0.1 mm. It allows seamlessly splice for any size to assemble and disassemble quickly.