LED structure and LED screen thereof

Abstract

The invention belongs to the technical field of LEDs, and particularly relates to an LED structure and an LED screen thereof. The LED structure comprises an aluminum substrate, an LED chip and a transparent cover, wherein an insulating layer is arranged on the upper surface of the aluminum substrate, a metal block is arranged on the upper surface of the insulating layer, and a conductive circuit pattern is formed on the metal block; the LED chip is fixed to the aluminum substrate through a heat dissipation block, and the heat dissipation block extends into the aluminum substrate. The LED chipis sleeved with the transparent cover, and the transparent cover is fixed to the upper portion of the aluminum substrate. A heat dissipation cavity is formed in the aluminum substrate, and a through-hole foamed aluminum plate is fixed in the heat dissipation cavity; the through-hole foamed aluminum plate is divided into two parts through a heat dissipation plate; the heat dissipation block is divided into two parts through the heat dissipation plate to be inserted into the foamed aluminum plate. The contact position of the upper part of the heat dissipation block and the LED chip is a sealed heat dissipation body, and the lower part of the heat dissipation block is made of a foamed aluminum material; therefore, the overall weight of the LED screen can be reduced when the LED structures form the LED screen, and the application range of the LED screen is widened.

Description

technical field [0001] The invention belongs to the technical field of LEDs, and specifically relates to an LED structure and an LED screen thereof. Background technique [0002] LED (Light Emitting Diode; Light Emitting Diode) is a solid-state semiconductor device that can convert electrical energy into visible light. It has the advantages of long life and low energy consumption. With the development of LED technology, the performance of LED light source is getting better and better. . [0003] The application of LED screen virtual pixels is developing rapidly. The most widely used LED virtual display technology is the four-light virtual display, which is composed of two red lights represented by R, one blue light represented by B and one green light represented by G. [0004] However, most of the packaging structures provided on the existing LED structures are only considered to dissipate heat for the LED chips that work for a long time. Increasing the overall weight of ...

AI Technical Summary

Problems solved by technology

[0004] However, most of the packaging structures provided on the existing LED structures are only considered to dissipate heat for the LED chips that have been working for a long time. Increasing the overall weight of the LED structure not only does not have the effect of efficient heat dissipation, but also the bonding of multiple spliced ​​LED structures with adhesive materials will further increase the overall weight of the LED screen.

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