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Small-space LED display module and manufacturing method thereof

A technology for display modules and manufacturing methods, which is applied in the direction of instruments, identification devices, etc., can solve the problems of high cost and low reliability, and achieve the effects of easy cleaning, convenient and reliable processing, and simple processing methods

Inactive Publication Date: 2019-06-04
LEYARD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a small-pitch LED display module and its manufacturing method to solve the problems of low reliability and high cost in the LED protection process of the small-pitch LED display module in the prior art

Method used

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  • Small-space LED display module and manufacturing method thereof
  • Small-space LED display module and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] In this embodiment, a small-pitch LED display module is produced, and the specific process is as follows:

[0048] Select the LED light board with model TVH2.5 set on the mounting substrate, the LED dot pitch is 2.5mm, and the size is 200×150mm;

[0049] Use room temperature curing epoxy resin glue to fill the side of the LED light board away from the mounting substrate;

[0050] Secondly, use a polytetrafluoroethylene plate (thickness 1mm) to press the side carrying the glue (pressure 0.04MPa), make the glue enter the gap between the LEDs and squeeze out the excess glue, and then cure ( 6h) to form a protective colloid, and then form a prefabricated module.

[0051] Remove the frosted board in the prefabricated module to form a small-pitch LED display module.

[0052] The performance of the above-mentioned small-pitch LED display module was characterized, and the reflectance of the surface of the module was detected by a reflectance detector, and the reflectance of v...

Embodiment 2

[0054] The manufacturing process of the small-pitch LED display module in this embodiment is the same as that in Embodiment 1, the difference lies in:

[0055] The thickness of the polytetrafluoroethylene plate is 0.1mm, the pressing pressure is 0.005MPa, and the curing time is 0.5h. The performance of the above-mentioned small-pitch LED display module was characterized, and the reflectance of visible light was 1%.

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Abstract

The invention provides a small-space LED display module and a manufacturing method of the small-space LED display module. The small-space LED display module comprises a mounting base plate, an LED lamp panel and protective colloid, wherein the LED lamp panel comprises a circuit board and a plurality of LEDs arranged on the circuit board at intervals, the circuit board is arranged on the surface ofone side of the mounting base plate, and the LEDs are arranged on the surface of one side, far away from the mounting base plate, of the circuit board; and the protective colloid is arranged in gapsamong the LEDs, and the surface of one side, far away from the circuit board, of the protective colloid is level with the surfaces of one sides, far away from the circuit board, of the LEDs. The protective colloid can play a very good protection role on the LEDs, so that the problems of knocking on the LEDs and the breakage of the LEDs due to the excessive humidity are effectively solved. Meanwhile, the surface of one side, far away from the circuit board, of the protective colloid is level with the surfaces of one sides, far away from the circuit board, of the LEDs, so that the cleaning for the surface of the LED lamp panel is easy. In addition, the processing mode of the protective colloid is simple, the processing is convenient and reliable, and the method is satiable for the industriallarge-scale application.

Description

technical field [0001] The invention relates to the technical field of LED display, in particular to a small-pitch LED display module and a manufacturing method thereof. Background technique [0002] The LED display screen is composed of LED dot matrix. Text and pictures are displayed by turning on and off the lamp beads. The content can be replaced at any time. Each part of the component is a display device with a modular structure. LED display modules usually include a mounting substrate and an LED light board. The LED light board includes a circuit board and multiple LEDs arranged in an array on the circuit board. According to the spacing between LEDs, LED display modules are divided into large-pitch type and small-pitch type. Spacing type. [0003] For the small-pitch LED display module, it is not waterproof. At the same time, the welding force of the LED is small and it is close to the edge of the light board. When the gas is too large, various problems such as dead l...

Claims

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Application Information

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IPC IPC(8): G09F9/33G09F9/302
Inventor 张龙虎王宏伟王勇
Owner LEYARD
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