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Preparation method of quantum dot color filter

A technology of quantum dots and color filters, which is applied in the field of display and luminescence, can solve the problem of high volatilization of polymerizable monomer components, and achieve the effect of ensuring uniformity and reducing more volatilization of polymerizable monomers

Active Publication Date: 2021-06-29
SUZHOU XINGSHUO NANOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of this application is to provide a method for preparing a quantum dot color filter to solve the problem that the polymerizable monomer components in the quantum dot glue solution volatilize more when preparing the quantum dot color filter

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0017] According to some exemplary embodiments of the present application, a method for preparing a quantum dot color filter is provided, including: step S1, providing a pixel substrate, the pixel substrate contains a plurality of sub-pixel grooves, and placing the pixel substrate in an inkjet printing device In the printing cavity; step S2, after inkjet printing the quantum dot glue in the sub-pixel groove, UV curing is performed on the quantum dot glue in the sub-pixel groove, and the UV curing process is completed in the printing cavity.

[0018] In the existing common technology, in the preparation of quantum dot color filters by inkjet printing, generally all the sub-pixel slots of the same color in the pixel substrate are filled with quantum dot glue, and then the pixel substrate is removed from the printing cavity to other Complete curing is carried out in a UV curing device, but in this method, on the pixel substrate, the film formation and dimensional thickness of the ...

Embodiment 1

[0031] Step S1. Place the pixel substrate in the printing chamber of the inkjet printing device. The pixel substrate is made of glass material with a size of 3.5 cm by 3.5 cm. The volume of the sub-pixel groove on the pixel substrate is about 80 pL.

[0032] Step S2. Print the quantum dot glue in the sub-pixel slot. The volume of the quantum dot glue removed by one printing is about 100pL. During the printing process, a 180 mW / cm2 UV lamp is used to irradiate the pixel slot, and the luminescence of the UV lamp The wavelength is located at 365 nanometers, the size of the light spot irradiated by the ultraviolet lamp is about 1.5 square centimeters, and the ultraviolet lamp is located 2 mm above the pixel substrate. The moving speed of the stage is about 100 mm / s, so as to ensure that the irradiation time of the quantum dot glue in each sub-pixel groove is about 20 seconds, and the semi-cured quantum dot glue is obtained.

[0033] Step S3, after the pixel substrate containing th...

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Abstract

The present application discloses a method for preparing a quantum dot color filter, comprising: step S1, providing a pixel substrate, the pixel substrate contains a plurality of sub-pixel grooves, and placing the pixel substrate in a printing chamber of an inkjet printing device ; Step S2, after inkjet printing the quantum dot glue in the single sub-pixel slot, UV curing the quantum dot glue in the single sub-pixel slot, the UV curing process is in the printing cavity Finish. The present application can reduce the volatilization difference of the polymerizable monomer between different sub-pixel grooves, thereby ensuring the uniformity of the quantum dot film in each sub-pixel groove.

Description

technical field [0001] The present application relates to the field of display light emission, in particular to a preparation method of a quantum dot color filter. Background technique [0002] A color filter is a key component for display devices to realize color. The color filter can convert light of a certain wavelength or wavelength range into light of another wavelength or wavelength range, thereby forming pixel units of different colors on the display panel. [0003] Quantum dots are widely used as wavelength conversion materials for color filters due to their advantages such as narrow emission half-peak width and good luminescence stability. The existing common preparation method of quantum dot color filter includes: after placing the pixel substrate in the printing chamber of the inkjet printing device, inkjet printing the quantum dots on all or a single color sub-pixel groove of the pixel substrate After the glue is applied, the pixel substrate is taken out of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/20
Inventor 王允军方龙徐晓波马卜
Owner SUZHOU XINGSHUO NANOTECH CO LTD