LED (Light Emitting Diode) fluorescent powder deposition control device and method

A sedimentation control and phosphor technology, applied in semiconductor/solid-state device manufacturing, electrical components, circuits, etc., can solve problems such as product color area drift, and achieve the effect of ensuring product quality, reducing inventory pressure, and avoiding product color area drift.

Active Publication Date: 2019-04-23
APT ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the above-mentioned technical defects, the present invention provides a LED phosphor sedimentation control device and method, which can effectively avoid the inaccurate static sedimentation time after COB material dispensing and encapsulation, which will cause inconsistent phosphor sedimentation and cause product color area drift, and effectively improve the color. area accuracy and improve product shipment rate

Method used

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  • LED (Light Emitting Diode) fluorescent powder deposition control device and method
  • LED (Light Emitting Diode) fluorescent powder deposition control device and method
  • LED (Light Emitting Diode) fluorescent powder deposition control device and method

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Embodiment 1

[0040] like figure 1 and figure 2 As shown, this embodiment 1 discloses a device for controlling LED phosphor sedimentation, including: a processor 1 with a plurality of timers 11, a human-computer interaction device 2 connected to the processor 1 and a device with a plurality of sensing areas 31 Induction station 3;

[0041] The human-computer interaction device 2 is used to receive the substrate information parameter input by the user, and send the substrate information parameter to the processor 1; the substrate information parameter includes the product information of the LED substrate, the settling time parameter and the sensing area parameter; the processor 1 is used to A timer 11 is bound to the sensing area parameter, and the settling time parameter is input into the bound timer 11;

[0042] Each sensing area 31 is provided with a sensor 32 and an alarm 33 connected to the processor 1, the sensor 32 is used to generate a sensing signal when sensing the LED substrate...

Embodiment 2

[0056] like Figure 5 As shown, this embodiment 2 corresponds to embodiment 1 and discloses a method for controlling the sedimentation of LED phosphor powder. Its technical effect is similar to that of embodiment 1, so it will not be repeated here. Specifically, the steps include:

[0057] S1. The human-computer interaction device receives the substrate information parameters input by the user, and sends the substrate information parameters to the processor; the substrate information parameters include LED substrate product information, settling time parameters and sensing area parameters;

[0058] S2. The processor includes a plurality of timers, and the processor binds a timer to the sensing area parameter, and inputs the settling time parameter into the bound timer;

[0059] S3. The sensor on a sensing area of ​​the sensing table generates a sensing signal when sensing the LED substrate and sends it to the processor;

[0060] S4. When the processor receives the sensing sig...

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Abstract

The invention discloses an LED (Light Emitting Diode) fluorescent powder deposition control device and method. An operator only needs to input deposition time to a timer of a processor through a man-machine interaction device; when an inductor induces an LED substrate, an induction signal is sent to the processor to start the timer; after reaching the deposition time input through the timer, alarming is carried out through an alarm, so as to remind the operator that fluorescent powder of the LED substrate is settled and next-step operation including curing and baking can be carried out; a condition that the standing and deposition time is not accurate after a COB (Chip On Board) material is dispensed and packaged so that the settlement of the fluorescent powder is not consistent and a color zone of a product is drifted can be effectively avoided, the accuracy of the color zone is effectively improved and the shipment rate of the product is improved, and the stock pressure is reduced. Meanwhile, powerful guarantees are provided for standardized management and a manufacturing procedure; the quality of the product can be sufficiently ensured, and the accuracy and scientificity of a COB packaging manufacturing procedure technology and the quality reliability of the product are effectively ensured.

Description

technical field [0001] The invention belongs to the technical field of LED packaging, and in particular relates to an LED fluorescent powder settlement control device and method. Background technique [0002] The sedimentation powder dispensing process is a hot spot for LED packaging and dispensing in recent years. During packaging, the phosphor powder is allowed to settle to the bottom of the LED substrate, which can make the phosphor better dissipate heat, thereby improving the reliability of the overall light source. Usually used Most methods are centrifugal sedimentation or natural sedimentation. Due to the limitation of centrifugal sedimentation, only a small amount of LED COB semi-finished products can be placed in one centrifugation, and due to the centrifugal force, it is easy to cause uneven force on the phosphor powder when used for COB light sources with large substrates. The distribution of the fluorescent powder is uneven, which further causes the problem of une...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L21/67H01L33/50
CPCH01L33/50H01L21/67253H01L21/67276H01L2933/0041Y02B20/40
Inventor 阮承海黄锦涛黄世云顾汉玉侯宇肖国伟
Owner APT ELECTRONICS
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