Outdoor LED display screen has always occupied the dominant position of fixed LED display. Conventional outdoor LED display screen has some disadvantages in terms of brightness, heat dissipation, maintenance and power consumption. To compensate for these shortcomings, we have created a thin and thin case with high brightness, low power consumption, excellent heat dissipation, excellent waterproof effect, simple appearance and die-cast aluminum case. Outdoor LED display screen products are widely used in real estate, media and advertising. Fixed outdoor LED display screen and indoor outdoor LED display, fixed billboard or wall hanging LED screen, fixed LED TV wall, TV channel, traffic control center, shopping center, conference room, etc. Fixed outdoor LED display screen is also used for downtown stadium signs, traffic signs and shopping center.