Transfer method of led and preparation method of led display panel

A transfer method and display panel technology, which is applied in semiconductor/solid-state device manufacturing, semiconductor devices, electrical components, etc., can solve problems such as technical difficulties and achieve high accuracy

Active Publication Date: 2020-10-13
CENTURY DISPLAY (SHENZHEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the size of LEDs tends to be miniaturized more and more, which makes it technically difficult to transfer a large number of tiny LEDs to a receiving substrate.

Method used

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  • Transfer method of led and preparation method of led display panel
  • Transfer method of led and preparation method of led display panel
  • Transfer method of led and preparation method of led display panel

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0028] An embodiment of the present invention provides a method for transferring a light emitting diode (Light Emitting Diode, LED), which is combined below Figure 1 to Figure 13 Each step of the LED transfer method is described in detail. The transfer method includes the following steps.

[0029] Step S11 : providing a receiving substrate 10 and a plurality of LEDs 20 .

[0030] Such as figure 1 As shown, the receiving substrate 10 has a plurality of receiving areas 14, and each receiving area 14 is used to receive one LED 20 correspondingly.

[0031] Such as figure 2 As shown, the receiving substrate 10 is a thin film transistor (Thin Film Transistor, TFT) substrate, which includes a substrate 11 , a TFT array layer 12 on the side of the substrate 11 , and an insulating layer 13 on the side of the TFT array layer 12 away from the substrate 11 . The TFT array layer 12 includes a plurality of TFTs (not shown), and the insulating layer 13 is provided with a plurality of r...

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PUM

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Abstract

A method for transferring LEDs, which includes the following steps: providing a receiving substrate and a plurality of LEDs, the receiving substrate has a plurality of receiving areas, each receiving area is used to receive one LED correspondingly, and the opposite ends of each LED are respectively provided with The magnetically opposite first electrode and second electrode can be used for magnetically attracting materials; using the first electromagnetic plate to magnetically adsorb multiple LEDs, so that each LED can be transferred to a first electrode with the first electrode facing up or the second electrode facing up. A platform; using a second electromagnetic flat plate to magnetically adsorb a plurality of LEDs on the first platform, and transfer them to a second platform after rough positioning; and utilizing a third electromagnetic flat plate to adsorb a plurality of LEDs on the second platform, Make it finely positioned and transfer to the receiving area of ​​the receiving substrate correspondingly. Also provided is a method for preparing the LED display panel.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a method for transferring a light emitting diode (Light Emitting Diode, LED) and a method for preparing an LED display panel. Background technique [0002] At present, the size of LEDs tends to be miniaturized more and more, which makes it technically difficult to transfer a large number of tiny LEDs to a receiving substrate. Contents of the invention [0003] The invention provides a method for transferring an LED, which comprises the following steps: [0004] Step S11: provide a receiving substrate and a plurality of LEDs, the receiving substrate has a plurality of receiving areas, each receiving area is used to receive one of the LEDs, and the opposite ends of each LED are respectively provided with magnetically opposite first an electrode and a second electrode or material available for magnetic attraction; [0005] Step S12: providing a first electromagnetic plate, usin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L21/67H01L21/683H01L27/15H01L33/48
CPCH01L27/156H01L21/67144H01L21/683H01L33/48H01L2933/0033H01L21/67709H01L25/0753H01L33/0095H01L24/95H01L2924/12041H01L24/75H01L2224/75735H01L2224/95133H01L2924/15153
Inventor 林永富陈柏良
Owner CENTURY DISPLAY (SHENZHEN) CO LTD
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