Packaging method for improving output concentration degree of LED (Light Emitting Diode) lamp beads

A technology of LED lamp beads and packaging methods, which is applied in the direction of electrical components, circuits, semiconductor devices, etc., can solve the problems of product brightness, poor color uniformity, and large particle size differences of phosphor particles, so as to reduce equipment requirements and operation difficulty. The effect of saving labor costs and being suitable for mass industrial production

Inactive Publication Date: 2017-07-14
WUHU JUFEI PHOTOELECTRIC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For this reason, the technical problem to be solved by the present invention is that the particle size of the fluorescent powder in the fluorescent glue in the existing LED packaging process varies greatly, resulting in the problem of poor brightness and color uniformity of the product. Sorting roll-type LED phosphor powder screening device and phosphor powder packaging method

Method used

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  • Packaging method for improving output concentration degree of LED (Light Emitting Diode) lamp beads
  • Packaging method for improving output concentration degree of LED (Light Emitting Diode) lamp beads
  • Packaging method for improving output concentration degree of LED (Light Emitting Diode) lamp beads

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Embodiment 1

[0034] This embodiment provides a rolling type LED phosphor screening device, such as figure 1As shown, it includes at least two stages of rolling sieves. The rolling sieves of multiple stages are stacked one after another in the vertical direction. 1 Rotating drive mechanism, the distance between adjacent rollers 1 in each stage of rolling screen is 1-99 μm, the axial direction of rollers 1 is consistent, and along the direction from top to bottom, rollers 1 in each stage of rolling screen The spacing decreases step by step. The drive mechanism adopts a conventional drive motor, and the drive motor drives the roller 1 to rotate, and the roller 1 rolls to filter the fluorescent powder with a particle size smaller than the distance between the rollers 1 to the next-stage rolling sieve, and the rotating speed of the roller is 10 -600rpm / min, in this embodiment, the rotating speed of the roller is 10rpm / min. The rolling sieve can be set to two or more stages according to the pa...

Embodiment 2

[0044] This embodiment provides a rolling type LED phosphor screening device, the structure of which is basically the same as that of Embodiment 1, the difference is that the rolling sieve has three stages, from top to bottom are the first stage rolling sieve, the second stage The first-stage rolling screen and the third-stage rolling screen, the distance between two adjacent rollers in the first-stage rolling screen is 99 μm, the distance between two adjacent rollers in the second-stage rolling screen is 50 μm, and the third-stage rolling screen The distance between two adjacent rollers in the sieve is 30 μm.

[0045] This embodiment also provides a packaging method for improving the output concentration of LED lamp beads, including the following steps:

[0046] S1. Take the first fluorescent powder and place it on the rolling sieve at the top of the screening device, that is, the first-stage rolling sieve 3, start the drive motor, and the fluorescent powder whose particle si...

Embodiment 3

[0052] This embodiment provides a rolling type LED phosphor screening device, the structure of which is basically the same as that of Embodiment 1, the difference is that the rolling screen has five stages, from top to bottom are the first stage rolling screen, the second stage Stage rolling screen and third stage rolling screen, the distance between two adjacent rollers in the first stage rolling screen is 80 μm, the distance between two adjacent rollers in the second stage rolling screen is 45 μm, the third stage rolling The distance between two adjacent rollers in the sieve is 25 μm, the distance between two adjacent rollers in the fourth stage rolling screen is 7 μm, and the distance between two adjacent rollers in the fifth stage rolling screen is 2 μm.

[0053] This embodiment also provides a packaging method for improving the output concentration of LED lamp beads, including the following steps:

[0054] S1. Take the first fluorescent powder and place it on the rolling ...

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Abstract

The invention discloses a packaging method for improving the output concentration of LED lamp beads. Firstly, a rolling-type LED phosphor powder screening device is used to screen phosphor powder. The device includes at least two stages of rolling screens, and each stage of rolling screens includes The distributed rollers and the driving mechanism that drives the rollers to rotate, the rolling screens are arranged in parallel in the vertical direction, and the distance between the rollers in each stage of the rolling screens is gradually decreasing along the direction from top to bottom. When the device is working, the fluorescent powder with a particle size smaller than the distance between the rollers of the top roller sieve falls into the second stage roller sieve below it, and the phosphor with a particle diameter larger than the distance between the rollers of the top roller sieve is recycled to the material box, and so on. Phosphor powder particles in the diameter range can be distinguished, the device has a simple structure, is easy to operate, and has a high degree of automation, which is suitable for mass industrial production. In the encapsulation process, there are requirements for encapsulant mixing equipment and difficulty in operation.

Description

technical field [0001] The invention belongs to the technical field of LED lamp beads processing, and in particular relates to a packaging method for improving the output concentration of LED lamp beads. Background technique [0002] In recent years, with the rise of light-emitting diode (LED) semiconductor lighting business in the world, white LED as a new generation of light source has attracted great attention. Compared with traditional light sources, LED has high color rendering (high color gamut, high color rendering index), high brightness, long life, energy saving and environmental protection (no heat radiation, low power consumption), real-time color controllable, fast response speed (can be operated at high frequency), shock and vibration resistance and many other advantages, it has been widely used in technical fields such as backlights, indicator lights, and general lighting of liquid crystal displays. [0003] In the entire LED industry chain, LED packaging is a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L33/50
CPCH01L33/50H01L2933/0041
Inventor 张志宽高丹鹏邢其彬
Owner WUHU JUFEI PHOTOELECTRIC TECH CO LTD
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