CN209794898U - ink-jet printing equipment for preparing quantum dot color filter - Google Patents
ink-jet printing equipment for preparing quantum dot color filter Download PDFInfo
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- CN209794898U CN209794898U CN201920313597.3U CN201920313597U CN209794898U CN 209794898 U CN209794898 U CN 209794898U CN 201920313597 U CN201920313597 U CN 201920313597U CN 209794898 U CN209794898 U CN 209794898U
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- quantum dot
- printing apparatus
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Abstract
The application discloses an inkjet printing apparatus for preparing a quantum dot color filter, including: a supporting member for supporting the pixel substrate; a print head for ejecting a quantum dot paste to the pixel substrate supported by the support member, the print head having a plurality of ejection ports arranged to eject the quantum dot paste; an ultraviolet irradiation unit for irradiating the pixel substrate with ultraviolet rays to cure the quantum dot paste attached to the pixel substrate; and a first moving member that is mounted in a state where the print head faces the support member and moves in a scanning direction. The device capable of carrying out ultraviolet curing on the quantum dot glue solution is arranged in the ink-jet printing equipment, so that the problem that polymerizable monomers in the quantum dot glue solution are volatilized more in the conventional common method can be remarkably reduced, and the uniformity of each quantum dot color filter pixel unit in the pixel substrate can be effectively ensured.
Description
Technical Field
The application relates to the field of printing devices, in particular to an ink-jet printing device for preparing a quantum dot color filter.
Background
Color filters are key components of a display device to realize colors, and the color filters can convert light of a certain wavelength or wavelength range into light of another wavelength or wavelength range, thereby constituting pixel units of different colors on a display panel. Since quantum dots have advantages of narrow emission half-peak width, good luminescence stability, etc., quantum dots are widely used as wavelength conversion materials for color filters.
The existing common preparation method of the quantum dot color filter comprises the following steps: after the pixel substrate is placed in a printing cavity of an ink-jet printing device, after the quantum dot glue solution is printed on all or single color sub-pixel grooves of the pixel substrate in an ink-jet manner, the pixel substrate is taken out of the printing cavity and then placed in an ultraviolet curing device to be cured completely, and therefore the quantum dot color filter is obtained. However, in the above preparation method, the time interval from the process of ink-jet printing of the quantum dot glue solution in the sub-pixel tank to the complete curing in the ultraviolet curing device is long, which results in more volatilization of the polymerizable monomer component in the quantum dot glue solution, and is not favorable for controlling the preparation process of the quantum dot color filter.
SUMMERY OF THE UTILITY MODEL
The application aims to provide an ink-jet printing device for preparing a quantum dot color filter, so as to solve the problem that a polymerizable monomer component in a quantum dot glue solution is volatilized more when the quantum dot color filter is prepared.
according to an aspect of the present application, there is provided an inkjet printing apparatus for printing a quantum dot paste solution, comprising: a supporting member for supporting the pixel substrate; a print head for ejecting a quantum dot paste to the pixel substrate supported by the support member, the print head having a plurality of ejection ports arranged to eject the quantum dot paste; an ultraviolet irradiation unit for irradiating the pixel substrate with ultraviolet rays to cure the quantum dot paste attached to the pixel substrate; and a first moving member that is mounted in a state where the print head faces the support member and moves in a scanning direction.
Alternatively, the ultraviolet irradiation member is mounted on the first moving member in a state facing the support member, and the ultraviolet irradiation member moves in synchronization with the print head.
Alternatively, the ultraviolet irradiation member is provided on the second moving member so as to be mounted in a state of facing the support member and to reciprocate in the print scanning direction.
Alternatively, the print head is disposed in front of the ultraviolet irradiation part toward the scanning direction.
Alternatively, the ultraviolet irradiation part is fixedly disposed on a side of the print head away from the ejection port, and the irradiated ultraviolet rays can completely cover the pixel substrate.
alternatively, the ultraviolet irradiation means may be configured as a plurality of LED lamps for irradiating ultraviolet rays, which are arranged in line in a direction perpendicular to the scanning direction.
Alternatively, the inkjet printing apparatus includes an irradiation light amount control part that adjusts irradiation intensity irradiated by the ultraviolet irradiation part.
Optionally, the amount of the ultraviolet light irradiated on the quantum dot paste is adjusted by adjusting at least one of an irradiation intensity of the ultraviolet irradiation member and a moving speed of the ultraviolet irradiation member.
optionally, the curing makes the quantum dot glue solution become a semi-cured state or a completely cured state.
Optionally, the distance between the print head and the support member in a direction in which the print head faces the support member is between 0.5 cm and 1 cm.
Has the advantages that: the application provides an inkjet printing equipment for printing quantum dot glue solution, can carry out the device of ultraviolet curing to the quantum dot glue solution through set up in inkjet printing equipment, can show to reduce the problem that polymerizable monomer volatilizees more in the quantum dot glue solution among the current common method, can the homogeneity of each quantum dot color filter pixel unit in the effectual assurance pixel substrate.
Drawings
FIG. 1 is a schematic view of an inkjet printing apparatus in one illustrative embodiment;
FIG. 2 is a schematic view of an inkjet printing apparatus in another illustrative embodiment;
FIG. 3 is a schematic view of an inkjet printing apparatus in another illustrative embodiment;
FIG. 4 is a schematic view of an inkjet printing apparatus in another illustrative embodiment.
Detailed Description
The technical solutions in the examples of the present application will be described in detail below with reference to the embodiments of the present application. It should be noted that the described embodiments are only some embodiments of the present application, and not all embodiments.
according to some exemplary embodiments of the present application, there is provided an inkjet printing apparatus for manufacturing a quantum dot color filter, including: a supporting member for supporting the pixel substrate; a print head for ejecting the quantum dot paste to the pixel substrate supported by the support member, the print head having a plurality of ejection ports arranged to eject the quantum dot paste; an ultraviolet irradiation unit for irradiating a pixel substrate with ultraviolet rays to cure the quantum dot paste attached to the pixel substrate; and a first moving member that is mounted in a state where the print head faces the support member and moves in a scanning direction.
This application is totally different with current common technique, adopts the inkjet printing equipment who contains ultraviolet irradiation part, adopts ultraviolet irradiation immediately after printing quantum dot glue solution inkjet in pixel substrate or when printing, carries out half solidification or curing treatment completely to the quantum dot glue solution, and the reduction that can show like this can be in the current common technique the volatile volume of polymerizable monomer in the quantum dot glue solution to guarantee the homogeneity of each quantum dot color filter pixel unit.
In one illustrative embodiment, as shown in fig. 1, there is provided an inkjet printing apparatus 100 for manufacturing a quantum dot color filter, the inkjet printing apparatus 100 including: a supporting member 110, the supporting member 110 supporting the pixel substrate 120; the print head 130, the print head 130 has a plurality of ejection ports 131 arranged for ejecting quantum dot glue 132; an ultraviolet irradiation unit 140 for irradiating ultraviolet rays to the pixel substrate 120 to cure the quantum dot paste attached to the pixel substrate 120; the print head 130 and the ultraviolet irradiation part 140 are mounted on the first moving part 150, and the print head 130 and the ultraviolet irradiation part 140 move in synchronization with the first moving part 150. When the printing head 130 prints the quantum dot glue solution 132 on the pixel substrate 120, the scanning direction of the printing head 130 is the direction a, and the printing head moves back and forth, so that the pixel groove in the pixel substrate is completely filled. The distance between the print head 130 and the support member 110 is preferably between 0.5 cm and 1 cm, and when the distance between the print head 130 and the support member 110 is greater than 1 cm, the printing path of the printed quantum dot paste is easily deviated; when the distance between the print head 130 and the support member 110 is less than 0.5 cm, the quantum dot paste printed on the pixel substrate is easily splashed, and thus, the distance between the two is preferably in the above range.
In one illustrative embodiment, as shown in fig. 2, there is provided an inkjet printing apparatus 200 for manufacturing a quantum dot color filter, the inkjet printing apparatus 200 including: a supporting member 110, the supporting member 110 supporting the pixel substrate 120; the print head 130 and the print head 130 have a plurality of ejection ports 131 arranged to eject the quantum dot paste 132, and the print head 130 is mounted on the first moving member 251; and an ultraviolet irradiation member 140 for irradiating the pixel substrate 120 with ultraviolet rays to cure the quantum dot paste adhered to the pixel substrate 120, wherein the ultraviolet irradiation member 140 is mounted on the second moving member 252. When the print head 130 prints the quantum dot glue solution 132 on the pixel substrate 120, the scan direction of the print head 130 is the direction a, and the print head moves back and forth, so that the pixel groove in the pixel substrate 120 is completely filled. In order to cure the quantum dot glue solution on the pixel substrate 120, the ultraviolet irradiation component 140 is located behind the print head 130 in the scanning direction a, and along with the synchronous movement of the print head 130, the moving distance and the relative moving speed of the ultraviolet irradiation component 140 and the print head 130 can be regulated and controlled, so as to complete the purpose of curing the quantum dot glue solution. When the irradiation intensity of the ultraviolet irradiation unit 140 and the moving speed of the ultraviolet irradiation unit 140 are adjusted, the amount of light irradiated onto the quantum dot paste re-attached to the pixel substrate 120 can be controlled.
In one illustrative embodiment, as shown in fig. 3, there is provided an inkjet printing apparatus 300 for manufacturing a quantum dot color filter, the inkjet printing apparatus 300 including: a supporting member 110, the supporting member 110 supporting the pixel substrate 120; the print head 130 and the print head 130 have a plurality of ejection ports 131 arranged to eject the quantum dot paste 132, and the print head 130 is mounted on the first moving member 350; and an ultraviolet irradiation unit 340 for irradiating the pixel substrate 120 with ultraviolet rays to cure the quantum dot paste adhered to the pixel substrate 120, wherein the ultraviolet irradiation unit 340 is fixedly disposed on a side of the print head 130 away from the ejection port 131, and the irradiated ultraviolet rays can completely cover the pixel substrate 120. When the printing head 130 prints the quantum dot glue solution 132 on the pixel substrate 120, the scanning direction of the printing head 130 is the direction a, and the printing head moves back and forth, so that the pixel groove in the pixel substrate is completely filled.
In one exemplary embodiment, as shown in fig. 4, there is provided an inkjet printing apparatus 400 for manufacturing a quantum dot color filter, the inkjet printing apparatus 400 having substantially the same configuration as the inkjet printing apparatus 300 of fig. 3 except that an ultraviolet irradiation part 440 is configured as a plurality of LED lamps for irradiating ultraviolet rays arranged in a vertical arrangement to the scanning direction, and the inkjet printing apparatus 400 further includes an irradiation light amount control part that adjusts irradiation intensity irradiated by the ultraviolet irradiation part. The scanning direction of the print head 130 is the direction a, after the quantum dot glue solution 132 is printed into the pixel slot corresponding to the pixel substrate 120, the LED lamp for irradiating ultraviolet rays located right above the pixel slot containing the quantum dot glue solution is turned on, and the LED lamps at other places are turned off or have weaker intensity, so as to achieve the curing of the quantum dot glue solution.
Although the present disclosure has been described and illustrated in greater detail by the inventors, it should be understood that modifications and/or alterations to the above-described embodiments, or equivalent substitutions, will be apparent to those skilled in the art without departing from the spirit of the disclosure, and that no limitations to the present disclosure are intended or should be inferred therefrom.
Claims (10)
1. An inkjet printing apparatus for preparing a quantum dot color filter, comprising:
A supporting member for supporting the pixel substrate;
A print head for ejecting a quantum dot paste to the pixel substrate supported by the support member, the print head having a plurality of ejection ports arranged to eject the quantum dot paste;
An ultraviolet irradiation unit for irradiating the pixel substrate with ultraviolet rays to cure the quantum dot paste attached to the pixel substrate; and
And a first moving member that is mounted in a state where the print head faces the support member and moves in a scanning direction.
2. The inkjet printing apparatus according to claim 1, wherein the ultraviolet irradiation member is mounted on the first moving member in a state facing the support member, and the ultraviolet irradiation member moves in synchronization with the print head.
3. The inkjet printing apparatus according to claim 1, wherein the ultraviolet ray member is provided on a second moving member, mounted in a state where the ultraviolet ray irradiation member faces the support member, and reciprocally moves in a print scanning direction.
4. The inkjet printing apparatus according to claim 3, wherein the print head is disposed in front of the ultraviolet irradiation part toward the scanning direction.
5. The inkjet printing apparatus according to claim 1, wherein the ultraviolet irradiation part is fixedly disposed on a side of the print head away from the ejection opening, and the irradiation ultraviolet rays can completely cover the pixel substrate.
6. The inkjet printing apparatus according to claim 5, wherein the ultraviolet irradiation means is constituted by a plurality of LED lamps for irradiating ultraviolet rays arranged in a row perpendicular to the scanning direction.
7. The inkjet printing apparatus according to claim 1, wherein the inkjet printing apparatus includes an irradiation light amount control section that adjusts irradiation intensity irradiated by the ultraviolet irradiation section.
8. The inkjet printing apparatus according to claim 1, wherein the amount of ultraviolet light irradiated on the quantum dot paste is adjusted by adjusting at least one of an irradiation intensity of the ultraviolet irradiation member and a moving speed of the ultraviolet irradiation member.
9. The inkjet printing apparatus according to claim 1, wherein the curing causes the quantum dot paste solution to become a semi-cured state or a fully cured state.
10. Inkjet printing apparatus according to claim 1 wherein the distance from the support member in the direction in which the printhead faces the support member is between 0.5 cm and 1 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920313597.3U CN209794898U (en) | 2019-03-13 | 2019-03-13 | ink-jet printing equipment for preparing quantum dot color filter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920313597.3U CN209794898U (en) | 2019-03-13 | 2019-03-13 | ink-jet printing equipment for preparing quantum dot color filter |
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| CN209794898U true CN209794898U (en) | 2019-12-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109720104A (en) * | 2019-03-13 | 2019-05-07 | 苏州星烁纳米科技有限公司 | It is used to prepare the ink jet printing device of quantum dot colour filter |
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2019
- 2019-03-13 CN CN201920313597.3U patent/CN209794898U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109720104A (en) * | 2019-03-13 | 2019-05-07 | 苏州星烁纳米科技有限公司 | It is used to prepare the ink jet printing device of quantum dot colour filter |
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