Side-stuck positive LED, lamp bar and high-transmittance display screen

Abstract

The invention discloses a side-stuck positive LED, a lamp bar and a high-transmittance screen. An LED chip is bound on an LED substrate, and side mounting pins are arranged on the side face of the LED substrate side by side; the lamp bar comprises a lamp bar substrate and more than one side-stuck positive LED, multiple groups of bonding pads are arranged on the lamp bar substrate, each group of bonding pads are provided with multiple bonding pad units which are arranged side by side, and the side mounting pins of the LEDs are welded to the bonding pads of the lamp bar substrate; the display screen comprises more than one LED lamp bar, an amplifying plate and a connecting plate, the LED lamp bars are arranged side by side, the amplifying plate is connected with all the lamp bars to input amplifying driving signals to the lamp bars, and the connecting plate is used for being connected with the lamp bars in an assistant mode. According to the side-stuck positive LED, the lamp bar and the high-transmittance screen, the LED encapsulation pins are arranged on the side face of the LED side by side, then point contact between the LED pins and the LED substrate is converted into surface contact, the heat conduction area is increased, and therefore the heat dissipation problem of the LED can be effectively solved; meanwhile, the consistency problem is solved, and the picture fidelity is guaranteed to the maximum extent.

Description

technical field [0001] The invention discloses an LED, in particular a side-mounted positive-emitting LED, a light bar and a high-transmittance screen, which belong to the field of LED packaging technology and transparent display screens. Background technique [0002] LED, also known as light-emitting diode, is an emerging light-emitting device. It is widely used in various lighting, especially in LED display screens, due to its advantages of small size, high luminous brightness, and energy saving. . [0003] In traditional LED displays, the packaged dot-matrix LED light board is welded on one side of the circuit board, and the drive circuit is welded on the other side of the circuit board. This structure cannot meet the requirements of LED heat dissipation, so it is usually installed in For outdoor use, when it is used indoors, due to heat dissipation requirements, it can only be used with reduced brightness and cannot be used for high-brightness display. [0004] With th...

AI Technical Summary

Problems solved by technology

[0006] (1) Solder the LEDs on the light board, and set the driving circuit on the driving board to realize the separate structure of the light drive, but the heat dissipation effect is still not ideal;

[0007] (2) Solder the LED on the side of the light board, so that the pins at both ends of the LED are respectively welded on both sides of the light board, but because the contact area between the LED pin and the light board is too small, the heat generated by the LED cannot be quickly transferred to the light board ; Can not solve the stability well;

[0008] (3) There is a gap on the side of the light board, so that the side of the light board looks like a "square wave", which can also be said to be like a "Great Wall". The LED is welded in the gap on the side of the light board to increase the number of LED beads and lamp The contact area of ​​the board, the pins at both ends of the LED are welded on both sides of the light board, which still cannot meet the heat dissipation requirements of the LED and the stability of the display

Images