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A circuit board and manufacturing process of a transparent LED display

A technology of LED display screen and manufacturing process, which is applied in the direction of printed circuit, printed circuit, circuit heating device, etc., can solve the problems of ineffective heat dissipation, waterproof, short circuit, circuit board damage, etc., and achieves improved processing performance and is not easy Excellent effect on damage, heat dissipation and waterproof

Active Publication Date: 2022-05-10
广东合通建业科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems existing in the prior art that only an insulating film is applied on the surface of the copper-clad laminate in the production process of the circuit board, it cannot effectively dissipate heat and waterproof, and easily cause the circuit board to be damaged and short-circuited. The purpose of the present invention is to It is to provide a circuit board and production process of a transparent LED display that can effectively dissipate heat and waterproof

Method used

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  • A circuit board and manufacturing process of a transparent LED display
  • A circuit board and manufacturing process of a transparent LED display
  • A circuit board and manufacturing process of a transparent LED display

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A circuit board 1 of a transparent LED display, such as Figure 1~2 As shown, it includes a PCB board 2 and an LED lamp bead 3 arranged on one side of the PCB board 2; the PCB board 2 includes a substrate 4, wherein both sides of the substrate 4 are sequentially provided with a prepreg 5 and an etched copper clad laminate 6, The material of the substrate 4 is polyimide, the thickness of the prepreg 5 is 0.1 mm, the thickness of the substrate 4 is 0.3 mm, and the thickness of the etched copper clad laminate 6 is 0.2 mm; the surface of the PCB board 2 is coated with an insulating heat dissipation layer 7.

[0042] The LED lamp bead 3 includes one or more of white light bead, yellow light bead, blue light bead and red light bead.

[0043] The insulating and heat-dissipating layer 7 is prepared from modified polyimide, which is prepared by mixing polyimide resin and modifier in dimethylformamide, and then vacuum drying; wherein , the mass ratio of polyimide resin, modifie...

Embodiment 2

[0057] A circuit board 1 of a transparent LED display, such as Figure 1~2 As shown, it includes a PCB board 2 and an LED lamp bead 3 arranged on one side of the PCB board 2; the PCB board 2 includes a substrate 4, wherein both sides of the substrate 4 are sequentially provided with a prepreg 5 and an etched copper clad laminate 6, The material of the substrate 4 is polyimide, the thickness of the prepreg 5 is 0.1 mm, the thickness of the substrate 4 is 0.3 mm, and the thickness of the etched copper clad laminate 6 is 0.2 mm; the surface of the PCB board 2 is coated with an insulating heat dissipation layer 7.

[0058] The LED lamp bead 3 includes one or more of white light bead, yellow light bead, blue light bead and red light bead.

[0059] The insulating and heat-dissipating layer 7 is prepared from modified polyimide, which is prepared by mixing polyimide resin and modifier in dimethylformamide, and then vacuum drying; wherein , the mass ratio of polyimide resin, modifie...

Embodiment 3

[0073] A circuit board 1 of a transparent LED display, such as Figure 1~2 As shown, it includes a PCB board 2 and an LED lamp bead 3 arranged on one side of the PCB board 2; the PCB board 2 includes a substrate 4, wherein both sides of the substrate 4 are sequentially provided with a prepreg 5 and an etched copper clad laminate 6, The material of the substrate 4 is polyimide, the thickness of the prepreg 5 is 0.1 mm, the thickness of the substrate 4 is 0.3 mm, and the thickness of the etched copper clad laminate 6 is 0.2 mm; the surface of the PCB board 2 is coated with an insulating heat dissipation layer 7.

[0074] The LED lamp bead 3 includes one or more of white light bead, yellow light bead, blue light bead and red light bead.

[0075] The insulating and heat-dissipating layer 7 is prepared from modified polyimide, which is prepared by mixing polyimide resin and modifier in dimethylformamide, and then vacuum drying; wherein , the mass ratio of polyimide resin, modifie...

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Abstract

The invention discloses a circuit board and a manufacturing process of a transparent LED display screen, wherein the circuit board includes a PCB board and LED lamp beads arranged on one side of the PCB board; the PCB board includes a substrate, and the two sides of the substrate are A prepreg and an etched copper-clad board are sequentially arranged; the surface of the PCB board is coated with an insulating and heat-dissipating layer. Different from the conventional insulation layer, heat dissipation layer and waterproof layer, the coating layer is too thick and the combination between the layers is not good, which can not achieve the corresponding effect. Waterproof as a whole, it has the advantages of being lighter and thinner and does not need to consider the bonding problem between multiple layers. It also has better performance in heat dissipation and waterproofing, which can meet the needs of the market.

Description

technical field [0001] The invention relates to the field of LED display screens, in particular to a circuit board and a manufacturing process of a transparent LED display screen. Background technique [0002] The LED display industry is located in the downstream of the LED industry chain and is one of the three major LED terminal product lines. With the maturity of small-pitch LED display technology, the scale of display applications has maintained a relatively stable and rapid growth trend. The application of outdoor large-size display screens is moving indoors, and can be widely used in outdoor advertising, control rooms, video conferencing, and high-end display fields. The circuit board makes the circuit miniaturized and intuitive, and plays an important role in the mass production of fixed circuits and the optimization of the layout of electrical appliances. Most of the traditional LED displays are LEDs attached to the surface of the circuit board, and the circuit board...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K1/02H05K3/28G09F9/33
CPCH05K1/0209H05K3/28G09F9/33H05K2201/0154
Inventor 陈子安罗明晖
Owner 广东合通建业科技股份有限公司
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