Method and equipment for transferring light-emitting particles, display substrate and device

A technology of luminescent particles and a transfer method, which is applied in the direction of semiconductor devices, electrical components, circuits, etc., can solve the problems of poor operability of the transfer technology of inorganic light-emitting diodes, and achieve mass production, strong operability, and easy Achieved effect

Active Publication Date: 2019-08-13
BOE TECH GRP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the present invention provides a method, equipment, display substrate and device for transferring luminescent particles, which are used to solve the problem of poor operability of the existing transfer technology of inorganic light emitting diodes

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  • Method and equipment for transferring light-emitting particles, display substrate and device
  • Method and equipment for transferring light-emitting particles, display substrate and device
  • Method and equipment for transferring light-emitting particles, display substrate and device

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Embodiment Construction

[0042] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will clearly and completely describe the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention belong to the protection scope of the present invention.

[0043] Please refer to figure 1 , figure 2 with image 3 , figure 1 It is a schematic flow chart of the transfer method of luminescent particles according to the embodiment of the present invention, figure 2 It is a schematic diagram of a method for forming light-emitting particles of an inorganic light-emitting diode according to an embodiment of the present invention, image 3 It i...

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Abstract

The invention provides a method and equipment for transferring light-emitting particles, a display substrate and a device. The transferring method comprises the following steps: providing a substratewith an inorganic light-emitting material sheet; cutting the inorganic light-emitting material sheet to form a plurality of light-emitting particles; heating the substrate on which the light-emittingparticles are formed, and expanding the substrate after heating to separate the plurality of light-emitting particles by a predetermined distance; aligning and laminating the substrate on which the separated light-emitting particles are formed with a driving back plate, and transferring the light-emitting particles to the driving back plate, wherein the driving back plate comprises a plurality ofpixel circuits which are in one-to-one correspondence with the light-emitting particles; and removing the substrate. The method is easy to implement, the light-emitting particles and the positions ofthe pixel circuits on the driving back plate can be ensured to be in one-to-one correspondence, the operability is high, and the mass production of the inorganic light-emitting diode display substrateis facilitated.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a transfer method, equipment, display substrate and device of luminescent particles. Background technique [0002] Nowadays, organic light-emitting diode (OLED) technology is developing rapidly, but organic light-emitting diodes use organic light-emitting materials, which have a very short lifespan and are easily corroded by air and water, so it is necessary to seek inorganic light-emitting materials to replace it. [0003] At this stage, inorganic light-emitting diodes are still in the laboratory stage, mainly because their transfer technology is not very operable and cannot be industrialized quickly. The traditional transfer technology of inorganic light-emitting diode particles is pick and place (chip) transfer technology. This technology mainly sprinkles inorganic light-emitting diode particles on the surface of the driving backplane, and makes the inorganic light-emitting d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L33/00
CPCH01L33/005
Inventor 徐文
Owner BOE TECH GRP CO LTD
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