CN109887978B - Display substrate, manufacturing method thereof and display device - Google Patents
Display substrate, manufacturing method thereof and display device Download PDFInfo
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- CN109887978B CN109887978B CN201910183784.9A CN201910183784A CN109887978B CN 109887978 B CN109887978 B CN 109887978B CN 201910183784 A CN201910183784 A CN 201910183784A CN 109887978 B CN109887978 B CN 109887978B
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- 239000000758 substrate Substances 0.000 title claims abstract description 95
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- 239000002096 quantum dot Substances 0.000 claims abstract description 111
- 239000000463 material Substances 0.000 claims abstract description 83
- 239000002245 particle Substances 0.000 claims abstract description 74
- 238000000576 coating method Methods 0.000 claims abstract description 27
- 239000011248 coating agent Substances 0.000 claims abstract description 24
- 238000007641 inkjet printing Methods 0.000 claims abstract description 12
- 230000005284 excitation Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 238000005054 agglomeration Methods 0.000 abstract description 5
- 230000002776 aggregation Effects 0.000 abstract description 5
- 239000007921 spray Substances 0.000 abstract description 4
- 239000010408 film Substances 0.000 description 17
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 238000001035 drying Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000001748 luminescence spectrum Methods 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000012788 optical film Substances 0.000 description 1
- 238000005424 photoluminescence Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/80—Constructional details
- H10K59/875—Arrangements for extracting light from the devices
- H10K59/877—Arrangements for extracting light from the devices comprising scattering means
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K77/00—Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80
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Abstract
The invention discloses a display substrate, a manufacturing method thereof and a display device, comprising the following steps: the color filter comprises a substrate base plate and a plurality of color resistors positioned on the substrate base plate; the color resistance comprises: at least two quantum dot layers and at least one scattering particle layer which are alternately stacked; the film layer farthest from the substrate in the color resistor is a quantum dot layer. Each color resistor adopts a mode of alternately arranging a quantum dot layer and a scattering particle layer, so that a quantum dot material and a scattering particle material can be separated in the manufacturing process, the quantum dot material cannot cause the blockage of a spray head, and the color resistor can be manufactured by adopting an ink-jet printing mode; for the scattering particle material with more serious agglomeration phenomenon, a strip coating or a whole layer coating mode can be adopted for manufacturing. Therefore, the problem of nozzle blockage caused by doping scattering particles in the quantum dot material can be avoided.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display substrate, a manufacturing method thereof and a display device.
Background
Quantum Dot (QD for short) is a nanoparticle composed of II-VI group or III-V group elements, can emit fluorescence after being excited, can control a luminescence spectrum by changing the size of the Quantum Dot, and has good fluorescence intensity and stability, so that the Quantum Dot is a good photoluminescence material.
The QD material has many advantages such as long lifetime and wide color gamut when used in a display panel, but also has a problem of low light conversion efficiency. In order to improve the light conversion efficiency of the quantum dots, scattering particles are usually added in the quantum dots to achieve the purpose of increasing the optical path, but in the process, certain difficulty is caused, mainly the scattering particles are agglomerated to block a sprayer, and the manufacturing effect is poor.
Disclosure of Invention
The invention provides a display substrate, a manufacturing method thereof and a display device, which are used for optimizing a manufacturing process and avoiding the problem of nozzle blockage.
In a first aspect, the present invention provides a display substrate, comprising: the color filter comprises a substrate base plate and a plurality of color resistors positioned on the substrate base plate;
the color resistance comprises: at least two quantum dot layers and at least one scattering particle layer which are alternately stacked;
and the film layer which is farthest away from the substrate in the color resistor is a quantum dot layer.
In a possible implementation manner, in the display substrate provided by the present invention, a quantum dot layer farthest from the substrate in the color resists is a first quantum dot layer, and a thickness of the first quantum dot layer is a half wavelength of the light emitted by the first quantum dot layer.
In one possible implementation manner, in the display substrate provided by the present invention, each quantum dot layer other than the first quantum dot layer is a second quantum dot layer;
the sum of the thicknesses of each second quantum dot layer and the adjacent scattering particle layer is an odd multiple of the half wavelength of the excitation light.
In a possible implementation manner, in the display substrate provided by the present invention, each color resistance corresponds to each pixel unit;
the display substrate further includes: the color resistor comprises a first annular retaining wall and a second annular retaining wall, wherein the first annular retaining wall is used for limiting the area where the color resistor is located, and a set gap exists between the first annular retaining wall and the first annular retaining wall;
the height of the first annular retaining wall is smaller than that of the second annular retaining wall.
In a possible implementation manner, in the display substrate provided by the invention, the height of the first annular retaining wall is 3/4-4/5 of the height of the second annular retaining wall.
In a possible implementation manner, in the display substrate provided by the present invention, the display substrate further includes: a plurality of support columns;
the supporting columns are positioned on one side, away from the first annular retaining wall, of each second annular retaining wall; the heights of the first annular retaining wall and the second annular retaining wall are smaller than the height of the supporting column;
or, the support columns are positioned on the second annular retaining wall.
In a possible implementation manner, in the display substrate provided by the present invention, a material of the quantum dot layer is mutually separated from a material of the first annular retaining wall;
the material of the scattering particle layer is sparse to the material of the second annular retaining wall, and the material of the scattering particle layer is hydrophilic to the material of the supporting column.
In a second aspect, the present invention provides a method for manufacturing any one of the display substrates, including:
providing a substrate base plate;
forming a quantum dot layer consistent with the color resistance pattern on the substrate base plate in an ink-jet printing mode;
forming a scattering particle layer on the quantum dot layer in a coating mode;
the quantum dot layer and the scattering particle layer are alternately stacked and formed on the substrate base plate, and the film layer farthest from the substrate base plate is the quantum dot layer.
In a possible implementation manner, in the manufacturing method provided by the present invention, each color resistance corresponds to each pixel unit; the step of coating the scattering particle layer on the quantum dot layer comprises the following steps:
coating a scattering particle layer on the substrate base plate on which the quantum dot layer is formed line by line or line by line according to the direction of the pixel unit lines or lines; or,
and coating a scattering particle layer on the whole surface of the substrate with the quantum dot layer.
In a third aspect, the present invention provides a display device, including any one of the above display substrates.
The invention has the following beneficial effects:
the invention provides a display substrate, a manufacturing method thereof and a display device, comprising the following steps: the color filter comprises a substrate base plate and a plurality of color resistors positioned on the substrate base plate; the color resistance comprises: at least two quantum dot layers and at least one scattering particle layer which are alternately stacked; the film layer farthest from the substrate in the color resistor is a quantum dot layer. Each color resistor adopts a mode of alternately arranging a quantum dot layer and a scattering particle layer, so that a quantum dot material and a scattering particle material can be separated in the manufacturing process, the quantum dot material cannot cause the blockage of a spray head, and the color resistor can be manufactured by adopting an ink-jet printing mode; for the scattering particle material with more serious agglomeration phenomenon, a strip coating or a whole layer coating mode can be adopted for manufacturing. Therefore, the problem of nozzle blockage caused by doping scattering particles in the quantum dot material can be avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic cross-sectional view of a display substrate according to an embodiment of the invention;
fig. 2 is a schematic cross-sectional structure diagram of a color resistor according to an embodiment of the present invention;
fig. 3 is a second schematic cross-sectional view illustrating a display substrate according to an embodiment of the invention;
fig. 4 is a schematic top view of a display substrate according to an embodiment of the invention;
fig. 5 is a third schematic cross-sectional view illustrating a display substrate according to an embodiment of the invention;
fig. 6 is a second schematic top view of a display substrate according to an embodiment of the invention;
FIG. 7 is a fourth schematic cross-sectional view of a display substrate according to an embodiment of the present invention;
FIG. 8 is a flowchart illustrating a method for fabricating a display substrate according to an embodiment of the present invention;
FIG. 9 is a schematic view of a coating method according to an embodiment of the present invention;
FIG. 10 is a second schematic view of a coating method according to an embodiment of the present invention;
FIG. 11 is a schematic diagram of a quantum dot layer for ink jet printing according to an embodiment of the present invention;
fig. 12 is a schematic diagram of a quantum dot layer after drying treatment according to an embodiment of the present invention;
FIG. 13 is a schematic view of a coated scattering particle layer provided by an embodiment of the present invention;
fig. 14 is a schematic view of a scattering particle layer after drying treatment according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The following describes a display substrate, a method for manufacturing the same, and a display device according to embodiments of the present invention in detail with reference to the accompanying drawings.
As shown in fig. 1, a display substrate provided in an embodiment of the present invention includes: a substrate 11, and a plurality of color resistors 12 on the substrate. The specific structure of the color resistor 12 is shown in fig. 2, and the color resistor includes: at least two quantum dot layers 121 and at least one scattering particle layer 122 alternately stacked; the film layer of the color resistor 12 farthest from the substrate 11 is the quantum dot layer 121.
The display substrate provided by the embodiment of the invention has the advantages that each color resistor is formed by alternately arranging the quantum dot layer 121 and the scattering particle layer 122, so that the quantum dot material and the scattering particle material can be separated in the manufacturing process, the nozzle cannot be blocked by the quantum dot material, and the display substrate can be manufactured by adopting an ink-jet printing mode; for the scattering particle material with more serious agglomeration phenomenon, a strip coating or a whole layer coating mode can be adopted for manufacturing. Therefore, the problem of nozzle blockage caused by doping scattering particles in the quantum dot material can be avoided.
The display substrate provided by the embodiment of the invention can be used as a color film substrate in a display module, the excitation light source excites the color resistor, so that the quantum dot material in the color resistor is excited to emit light with a specific color, the half-peak width of the excitation light of the quantum dot material is narrow, and the display substrate adopting the quantum dot material can be used in the display module with high color gamut requirement.
In practical implementation, the quantum dot layer farthest from the substrate 11 in the color resistor 12 is a first quantum dot layer, and the thickness of the first quantum dot layer is a half wavelength of the excited light emitted by the first quantum dot layer. In practical application, the excitation light source is positioned on one side facing the first quantum dot layer, the excitation light can firstly pass through the first quantum dot layer and then enter other quantum dot layers, and then the thickness of the first quantum dot layer is set to be the half wavelength of the excited emission light of the quantum dot material, so that the anti-reflection effect on the excited emission light can be achieved. The thickness of the first quantum dot layer needs to be determined according to the properties of the quantum dot material, the wavelength of the stimulated emission of the quantum dots of different materials is different, and the thickness needs to be set according to the properties of the quantum dot material in specific applications.
Further, in the embodiment of the present invention, each quantum dot layer other than the above-described first quantum dot layer is referred to as a second quantum dot layer. According to the embodiment of the invention, the sum of the thicknesses of each second quantum dot layer and the adjacent scattering particle layer is set to be an odd multiple of the half wavelength of the excitation light, so that the excitation light which is not converted can be subjected to resonance enhancement in the film layer, and the excitation efficiency of the quantum dot material is improved.
In practical application, the scattering particle material can be mixed in a transparent colloid material, and a semitransparent optical film is formed after drying, and the scattering particle layer can play a role in transmission and reflection at the same time. And the quantum dot layer 121 is matched with each other to form an effective transmission structure for exciting light, so that the utilization rate of the exciting light can be effectively improved.
In practical implementation, each color resistor 12 in the display substrate corresponds to each pixel unit; in order to define the area where the color resists are located, as shown in fig. 3, the display substrate provided by the embodiment of the present invention further includes: a first annular retaining wall 13 for defining the region of the color resistor, and a second annular retaining wall 14 surrounding the first annular retaining wall 13 and having a predetermined gap with the first annular retaining wall. The top structure of the first annular retaining wall 13 and the second annular retaining wall 14 is shown in fig. 4. Wherein, the height of the first annular retaining wall 13 is less than that of the second annular retaining wall 14.
The first annular retaining wall 13 and the second annular retaining wall 14 in the embodiment of the present invention are not connected together, but have a certain gap therebetween. The quantum dot material can be directly printed inside the first annular retaining wall 13, the double annular retaining walls can be arranged to enable the scattering particle material to be cut off and formed on the quantum dot layer by the annular retaining walls in the coating process, and the scattering particle material can be filled in each gap, so that the stimulated emission light of the quantum dot material can be prevented from being exposed from two sides.
Further, the height of the first annular wall 13 can be set to 3/4-4/5 of the height of the second annular wall 14. The height of the first annular wall 13 is set high enough to facilitate cutting off the scattering particle material and to avoid the occurrence of a landslide.
In addition, as shown in fig. 5 and 7, the display substrate according to the embodiment of the present invention further includes: a plurality of support columns 15; the support posts may support the display substrate from colliding with other film layers. In practical applications, as shown in fig. 5, the supporting pillars 15 may be disposed on a side of each second annular retaining wall 14 facing away from the first annular retaining wall 13, and the top view structure is shown in fig. 6; at this time, the heights of the first annular retaining wall 13 and the second annular retaining wall 14 can be set to be smaller than the height of the supporting column 15; alternatively, as shown in fig. 7, the supporting pillars 15 may be further disposed on the second annular retaining wall 14. The supporting pillars 15 serve not only as a support but also as a tensile balance for the interface of the scattering particle material layer during the coating of the scattering particle material, and ensure the flatness of the film surface during the drying of the scattering particle material.
Further, the materials of the first annular retaining wall 13, the second annular retaining wall 14 and the supporting columns 15 need to be selected according to the affinity and the hydrophobicity of the materials contacting the retaining walls. In the embodiment of the present invention, a material that is mutually sparse with the material of the quantum dot layer 121 may be selected to form the first annular retaining wall 13; selecting a material that is mutually thinner than the material of the scattering particle layer 122 to form a second annular retaining wall 14; the support posts 15 are formed from a material selected to be compatible with the material of the scattering particle layer 122. In the process of forming the film layer, the quantum dot material is directly formed inside the first annular retaining wall 13 by adopting an ink-jet printing mode, so that the first annular retaining wall 13 is made of a material which is sparse with the quantum dot layer material, and the quantum dot material can form a film inside the first annular retaining wall. The scattering particle layer is formed by coating, so that the supporting columns 15 with higher height are made of materials which are compatible with the scattering particle materials, the supporting columns 15 are compatible with the scattering particle materials, the scattering particle layer is stretched and shaped, and the formed film is smoother. The second annular retaining wall 14 is made of a material which is mutually sparse with the material of the scattering particle layer, so that the film formation of the scattering particle material in the second annular retaining wall 14 is facilitated.
On the other hand, an embodiment of the present invention further provides a method for manufacturing any one of the display substrates, as shown in fig. 8, the method may include:
s10, providing a substrate base plate;
s20, forming a quantum dot layer consistent with the color resistance pattern on the substrate base plate in an ink-jet printing mode;
and S30, forming a scattering particle layer on the quantum dot layer in a coating mode.
The quantum dot layer and the scattering particle layer are alternately stacked and formed on the substrate, and the film layer farthest from the substrate is the quantum dot layer.
According to the manufacturing method provided by the embodiment of the invention, the quantum dot material and the scattering particle material can be separated in the manufacturing process, the quantum dot material cannot cause the blockage of a spray head, and the manufacturing method can be realized by adopting an ink-jet printing mode; for the scattering particle material with more serious agglomeration phenomenon, a strip coating or a whole layer coating mode can be adopted for manufacturing. Therefore, the problem of nozzle blockage caused by doping scattering particles in the quantum dot material can be avoided.
Specifically, the display substrate provided by the embodiment of the invention can be used as a color film substrate, and the color resistors arranged on the substrate respectively correspond to the pixel units; in the above step S30, the scattering particle layer is coated on the quantum dot layer, and the manufacturing method can be performed in the following two ways:
in one practical manner, as shown in fig. 9, a scattering particle layer may be coated on the substrate on which the quantum dot layer is formed, row by row or column by column in the direction of the rows or columns of the pixel units.
In another practical manner, as shown in fig. 10, a scattering particle layer may be coated on the entire surface of the base substrate on which the quantum dot layer is formed.
Specifically, before printing or coating the quantum dot material or the scattering particle material, a first annular retaining wall and a second annular retaining wall for defining a region where the color resistor is located need to be formed on the substrate, the second annular retaining wall is sleeved outside the first annular retaining wall, and a certain gap is formed between the first annular retaining wall and the second annular retaining wall. As shown in fig. 11, the quantum dot material 121' is formed in each first annular wall 13 by inkjet printing, and after the inkjet printing is finished, the display substrate is dried, so that the quantum dot layer 121 is formed in the first annular wall, as shown in fig. 12. Next, as shown in fig. 13, a bar coating or a full-surface coating may be used to coat the scattering particle material 122' on the surface of the display substrate, and the scattering particle material is cut by the first annular retaining wall 13 and the second annular retaining wall 14, and a film is formed inside the second annular retaining wall 14; after the scattering particle material is dried, as shown in fig. 14, a scattering particle layer 122 may be formed on the surface of the quantum dot layer 121. By repeating the above steps, the quantum dot layer 121 and the scattering particle layer which are alternately stacked can be formed inside the first annular retaining wall 13, so that the quantum dot material and the scattering particle material are separated, and by setting a reasonable film thickness, the use efficiency of the excitation light can be improved, and the light ray with higher energy can be emitted.
The embodiment of the present invention further provides a display device, which includes the display substrate provided in the embodiment of the present invention, and the display device may be a liquid crystal panel, a liquid crystal display, a liquid crystal television, an Organic Light Emitting Diode (OLED) panel, an OLED display, an OLED television, or the like. Because the principle of the display device for solving the problems is similar to that of the display substrate, the display device can be implemented by the display substrate, and repeated details are not repeated.
The display substrate, the manufacturing method thereof and the display device provided by the embodiment of the invention comprise the following steps: the color filter comprises a substrate base plate and a plurality of color resistors positioned on the substrate base plate; the color resistance comprises: at least two quantum dot layers and at least one scattering particle layer which are alternately stacked; the film layer farthest from the substrate in the color resistor is a quantum dot layer. Each color resistor adopts a mode of alternately arranging a quantum dot layer and a scattering particle layer, so that a quantum dot material and a scattering particle material can be separated in the manufacturing process, the quantum dot material cannot cause the blockage of a spray head, and the color resistor can be manufactured by adopting an ink-jet printing mode; for the scattering particle material with more serious agglomeration phenomenon, a strip coating or a whole layer coating mode can be adopted for manufacturing. Therefore, the problem of nozzle blockage caused by doping scattering particles in the quantum dot material can be avoided.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. A display substrate, comprising: the color filter comprises a substrate base plate and a plurality of color resistors positioned on the substrate base plate;
the color resistance comprises: at least two quantum dot layers and at least one scattering particle layer which are alternately stacked;
the film layer which is farthest away from the substrate in the color resistor is a quantum dot layer;
each color resistor corresponds to each pixel unit respectively;
the display substrate further includes: the color resistor comprises a first annular retaining wall and a second annular retaining wall, wherein the first annular retaining wall is used for limiting the area where the color resistor is located, and a set gap exists between the first annular retaining wall and the first annular retaining wall;
the height of the first annular retaining wall is smaller than that of the second annular retaining wall.
2. The display substrate of claim 1, wherein a quantum dot layer of the color resistors farthest from the substrate is a first quantum dot layer having a thickness of a half wavelength of the stimulated emission light of the first quantum dot layer.
3. The display substrate according to claim 2, wherein each quantum dot layer other than the first quantum dot layer is a second quantum dot layer;
the sum of the thicknesses of each second quantum dot layer and the adjacent scattering particle layer is an odd multiple of the half wavelength of the excitation light.
4. The display substrate of claim 1, wherein the first annular retaining wall has a height of 3/4-4/5 of the second annular retaining wall.
5. The display substrate of claim 1, wherein the display substrate further comprises: a plurality of support columns;
the supporting columns are positioned on one side, away from the first annular retaining wall, of each second annular retaining wall; the heights of the first annular retaining wall and the second annular retaining wall are smaller than the height of the supporting column;
or, the support columns are positioned on the second annular retaining wall.
6. The display substrate of claim 5, wherein the material of the quantum dot layer is mutually interspersed with the material of the first annular wall;
the material of the scattering particle layer is sparse to the material of the second annular retaining wall, and the material of the scattering particle layer is hydrophilic to the material of the supporting column.
7. A method of manufacturing a display substrate according to any one of claims 1 to 6, comprising:
providing a substrate base plate;
forming a quantum dot layer consistent with the color resistance pattern on the substrate base plate in an ink-jet printing mode;
forming a scattering particle layer on the quantum dot layer in a coating mode;
the quantum dot layer and the scattering particle layer are alternately stacked and formed on the substrate base plate, and the film layer farthest from the substrate base plate is the quantum dot layer.
8. The method of claim 7, wherein each color resistor corresponds to each pixel unit; the step of coating the scattering particle layer on the quantum dot layer comprises the following steps:
coating a scattering particle layer on the substrate base plate on which the quantum dot layer is formed line by line or line by line according to the direction of the pixel unit lines or lines; or,
and coating a scattering particle layer on the whole surface of the substrate with the quantum dot layer.
9. A display device comprising the display substrate according to any one of claims 1 to 6.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910183784.9A CN109887978B (en) | 2019-03-12 | 2019-03-12 | Display substrate, manufacturing method thereof and display device |
| PCT/CN2020/077303 WO2020182001A1 (en) | 2019-03-12 | 2020-02-28 | Display substrate, fabrication method therefor and display apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910183784.9A CN109887978B (en) | 2019-03-12 | 2019-03-12 | Display substrate, manufacturing method thereof and display device |
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| CN109887978A CN109887978A (en) | 2019-06-14 |
| CN109887978B true CN109887978B (en) | 2021-01-12 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109887978B (en) * | 2019-03-12 | 2021-01-12 | 京东方科技集团股份有限公司 | Display substrate, manufacturing method thereof and display device |
| CN110246990A (en) * | 2019-06-27 | 2019-09-17 | 广东普加福光电科技有限公司 | A method of improving inkjet printing quantum dot layer to blue light absorption |
| CN110764175B (en) * | 2019-11-27 | 2022-03-29 | 京东方科技集团股份有限公司 | Color filter, preparation method, display panel and display device |
| CN113745292B (en) * | 2021-08-27 | 2023-06-02 | 深圳市华星光电半导体显示技术有限公司 | Quantum dot color film substrate, manufacturing method thereof and quantum dot display device |
| CN114755861B (en) * | 2022-06-15 | 2023-01-06 | 广东欧迪明光电科技股份有限公司 | High-efficiency quantum dot optical substrate and preparation method thereof |
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| CN105759496A (en) * | 2015-01-05 | 2016-07-13 | 三星显示有限公司 | Liquid Crystal Display With Improved Color Reproducibility |
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| CN109427847B (en) * | 2017-08-29 | 2020-12-11 | 京东方科技集团股份有限公司 | Method for manufacturing light emitting layer, electroluminescent device, and display device |
| CN207217581U (en) * | 2017-11-24 | 2018-04-10 | 广东昭信光电科技有限公司 | A kind of LED component of multilayer encapsulation |
| CN109887978B (en) * | 2019-03-12 | 2021-01-12 | 京东方科技集团股份有限公司 | Display substrate, manufacturing method thereof and display device |
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| CN206892501U (en) * | 2016-09-26 | 2018-01-16 | 惠州市粤泰翔科技有限公司 | A kind of multi-layer quantum point light diffusion film |
| US20180292711A1 (en) * | 2017-04-11 | 2018-10-11 | Samsung Display Co., Ltd. | Display apparatus and method of manufacturing the same |
| CN109283731A (en) * | 2017-07-19 | 2019-01-29 | 三星显示有限公司 | Color conversion panel and display equipment including the color conversion panel |
| CN108682753A (en) * | 2018-05-16 | 2018-10-19 | 深圳市华星光电技术有限公司 | OLED display panel and preparation method thereof |
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| WO2020182001A1 (en) | 2020-09-17 |
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