LED display screen with function of dissipating heat before screen

Abstract

The invention discloses an LED display screen with the function of dissipating heat before a screen. The LED display screen comprises a structure formed by sequentially fastening a mask, a middle waterproof ring, an SMD LED, a circuit board, a bottom shell and a waterproof ring, wherein the circuit board is arranged in the bottom shell, and the SMD LED is installed on the circuit board and coveredby the Fresnel lens mask; the mask and the bottom shell are buckled to form a sealed box structure; the SMD LED comprises a red light-emitting chip, a green light-emitting chip and a blue light-emitting chip, and the red light-emitting chip, and the green light-emitting chip and the blue light-emitting chip are packaged on the circuit board in the shape of Chinese character 'pin'; a shielding plate and a black shading blade are arranged on the mask. A Fresnel lens is adopted to dissipate heat before the LED display screen, the phenomenon that environment temperature is too high is reduced byscattering outside light, an internal light source is used for improving the lighting effect and improving brightness, the display screen can be displayed clearly outdoors without large power of lightpoints, and therefore light source quality and light use efficiency are improved.

Description

technical field [0001] The invention relates to the technical field of a light source, in particular to an LED display screen with heat dissipation in front of the screen. Background technique [0002] With the rapid progress and maturity of outdoor LED display technology in the economic market, the use of outdoor LED display is becoming more and more common, and it is widely used in outdoor media, shopping malls, real estate, high-speed road screens, education, hotels, school education, intelligent transportation, etc. Field applications, however, in the past few years, many display screens have experienced too fast light decay, insufficient clarity, frequent failures, etc. The heat of the outdoor high-brightness LCD screen is the direct cause of affecting the quality and life of the display screen. [0003] For outdoor LED displays, brightness is very critical. If the brightness of the outdoor LED display is not high, the picture cannot be seen clearly under direct sunlig...

AI Technical Summary

Problems solved by technology

Although installing an air conditioner on the LED display can solve the heat dissipation problem of the display, installing an air conditioner will cause damage to our display. make the display look unclear

The most important point is that the intersection of the cold air from the air conditioner and the hot air from the display will produce water mist, and the water mist attached to the circuit board will corrode the components, chips and solder joints in the display module, and cause a short circuit , display black screen and other faults

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