Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Manufacturing method of chip LED (light emitting diode) display screen

A technology of LED display screen and manufacturing method, which is applied to the parts of lighting devices, semiconductor devices of light-emitting elements, lighting and heating equipment, etc., which can solve the problems of poor antistatic ability, poor consistency, and low protection performance. Achieve stable performance, good display effect, and low power consumption

Inactive Publication Date: 2015-04-15
李海涛
View PDF13 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[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. The display module is composed of a dot matrix composed of LED lights. Responsible for luminous display, LED display can not only be used indoors, but also can be used in outdoor environments, which has incomparable advantages. The development prospect of LED is currently moving towards higher brightness, higher weather resistance, higher luminous density, The direction of higher luminous uniformity is developing. The LED display module currently on the market is to weld the light-emitting diode on the printed circuit board sprayed with black paint, and then weld the nut post on the other side of the printed circuit board, and install it directly through the nut post. On the display screen structure box, this method has many defects. The consistency of black paint sprayed on the printed circuit board is not good, and the protection performance of this process is not high, and the antistatic ability is poor.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Manufacturing method of chip LED (light emitting diode) display screen
  • Manufacturing method of chip LED (light emitting diode) display screen
  • Manufacturing method of chip LED (light emitting diode) display screen

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Step 1. Mount-type high-brightness SMD LED lamp 1 and circuit board 2 are connected by welding, and the reverse side of circuit board 2 welded with SMD LED lamp 1 is treated with anti-adhesive protective film 3, see figure 1 and figure 2 ;

[0040] Step 2: Paste the anti-adhesive protective film 3. The processed circuit board 2 and the plastic injection mold 4 are locked by the screw 5, and the black waterproof colloid 7 with a hardness of 60 Shore D is injected into the plastic injection mold through the injection port 6. The liquid level of the waterproof colloid 7 is equal to the height of the top of the patch LED lamp. The waterproof colloid 7 contains anti-ultraviolet, anti-acid rain, and anti-reflection materials. , see image 3 and Figure 4 ;

[0041] Step 3, the excess colloid on the edge of the circuit board 2 filled with waterproof colloid 7 is cut off by a cutter 8, see Figure 5 and Image 6 ;

[0042] Step 4. The surface of the waterproof colloid b...

Embodiment 2

[0045] Step 1. Mount-type high-brightness SMD LED lamp 1 and circuit board 2 are connected by welding, and the reverse side of circuit board 2 welded with SMD LED lamp 1 is treated with anti-adhesive protective film 3, see figure 1 and figure 2 ;

[0046] Step 2: Paste the anti-adhesive protective film 3. The processed circuit board 2 and the plastic injection mold 4 are locked by the screw 5, and the black waterproof colloid 7 with a hardness of 80 Shore D is injected into the plastic injection mold through the injection port 6. The liquid level of the waterproof colloid 7 is equal to the height of the top of the patch LED lamp. The waterproof colloid 7 contains anti-ultraviolet, anti-acid rain, and anti-reflection materials. , see image 3 and Figure 4 ;

[0047] Step 3, the excess colloid on the edge of the circuit board 2 filled with waterproof colloid 7 is cut off by a cutter 8, see Figure 5 and Image 6 ;

[0048] Step 4. Cut out criss-cross deep grooves on the...

Embodiment 3

[0051] Step 1. Mount-type high-brightness SMD LED lamp 1 and circuit board 2 are connected by welding, and the reverse side of circuit board 2 welded with SMD LED lamp 1 is treated with anti-adhesive protective film 3, see figure 1 and figure 2 ;

[0052] Step 2, Paste the anti-adhesive protective film 3 The processed circuit board 2 and the injection mold 4 are tightened and assembled through the screw 5, and the black waterproof colloid 7 with a hardness of 65 Shore D is injected into the injection mold through the injection port 6. The liquid level of the waterproof colloid 7 is equal to the top of the patch LED lamp, and the waterproof colloid completely covers the circuit board. Due to the wall-climbing effect of the liquid, the waterproof colloid also covers the metal conductive pins of the patch LED lamp 1. At the same time, the LED and the A recessed area is formed between the LEDs;

[0053] Step 3, the excess colloid on the edge of the circuit board 2 filled with wat...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a chip LED (light emitting diode) display screen and manufacturing method thereof. The chip LED display screen comprises chip LED lamps, a circuit board, a driving component, a waterproof colloid and a bottom shell, wherein the chip LED lamps are uniformly welded on the circuit board; the driving component is welded on the circuit board; and the circuit board is arranged on the bottom shell. The manufacturing method comprises the following steps of: welding and connecting the chip LED lamps with the circuit board; adhering film at the rear side of the circuit board; fastening the circuit board and a glue injection mold by screw bolts; injecting the waterproof colloid in the glue injection mold; cutting off residual colloid on the edges of the circuit board; cutting shaped lines on the surface of the colloid between the LEDs; welding the driving component at the rear side of the circuit board; locking and assembling the circuit board and the bottom shell by screws; adhering film at the periphery of the contact surface of the bottom shell and the circuit board; and injecting the waterproof colloid in a cavity of the bottom shell. The chip LED display screen provided by the invention is waterproof, moisture-proof, long in service life and uniform in illumination. The manufacturing method in the invention is simple and can be popularized.

Description

technical field [0001] The invention relates to a method for manufacturing a patch LED display screen. 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. The display module is composed of a dot matrix composed of LED lights. Responsible for luminous display, LED display can not only be used indoors, but also can be used in outdoor environments, which has incomparable advantages. The development prospect of LED is currently moving towards higher brightness, higher weather resistance, higher luminous density, The direction of higher luminous uniformity is developing. The LED display module currently on the market is to weld the light-emitting diode on the printed circuit board sprayed with black paint, and then weld the nut post on the other side of the printed ci...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G09F9/33F21V19/00F21V31/04F21Y101/02F21Y105/16F21Y115/10
Inventor 王平李海涛李海浪
Owner 李海涛
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com