CN220733060U - Quantum dot composite film applied to flexible display - Google Patents
Quantum dot composite film applied to flexible display Download PDFInfo
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- CN220733060U CN220733060U CN202322265887.4U CN202322265887U CN220733060U CN 220733060 U CN220733060 U CN 220733060U CN 202322265887 U CN202322265887 U CN 202322265887U CN 220733060 U CN220733060 U CN 220733060U
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- 239000002096 quantum dot Substances 0.000 title claims abstract description 73
- 239000002131 composite material Substances 0.000 title claims abstract description 31
- 238000000576 coating method Methods 0.000 claims abstract description 70
- 239000011248 coating agent Substances 0.000 claims abstract description 65
- 239000010408 film Substances 0.000 claims abstract description 60
- 238000002955 isolation Methods 0.000 claims abstract description 20
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000010410 layer Substances 0.000 claims abstract description 13
- 239000003822 epoxy resin Substances 0.000 claims abstract description 9
- 239000012788 optical film Substances 0.000 claims abstract description 9
- 229920000052 poly(p-xylylene) Polymers 0.000 claims abstract description 9
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 9
- 238000011065 in-situ storage Methods 0.000 claims abstract description 8
- 229920005749 polyurethane resin Polymers 0.000 claims abstract description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229920005989 resin Polymers 0.000 claims abstract description 7
- 239000011347 resin Substances 0.000 claims abstract description 7
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 7
- 239000010703 silicon Substances 0.000 claims abstract description 7
- 239000002356 single layer Substances 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 19
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 abstract description 12
- 229910052787 antimony Inorganic materials 0.000 abstract description 7
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 abstract description 7
- 239000002086 nanomaterial Substances 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 230000006750 UV protection Effects 0.000 abstract description 4
- 239000011247 coating layer Substances 0.000 description 18
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 230000005284 excitation Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000002216 antistatic agent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
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- 206010014970 Ephelides Diseases 0.000 description 1
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- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- 208000000453 Skin Neoplasms Diseases 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
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- 229910052717 sulfur Inorganic materials 0.000 description 1
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- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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Abstract
The utility model provides a quantum dot composite film applied to flexible display, which comprises a quantum dot film, wherein the upper surface and the lower surface of the quantum dot film are respectively coated with a waterproof air-isolation coating and a waterproof air-isolation coating, the upper surface of the waterproof air-isolation coating is coated with an antistatic coating I, the lower surface of the waterproof air-isolation coating is coated with an antistatic coating II, the upper surface of the antistatic coating I is coated with an ultraviolet-resistant coating I, and the lower surface of the antistatic coating II is coated with an ultraviolet-resistant coating II. The quantum dot film is an in-situ growth quantum dot optical film, the waterproof and air-isolating coating is a polyurethane resin, epoxy resin, organic silicon resin or parylene single-layer or multi-layer composite film structure, the antistatic coating is an antimony doped tin dioxide nano material coating, and the ultraviolet resistant coating is an indium tin oxide coating. The quantum dot composite film has good water resistance, air isolation, antistatic ability and ultraviolet resistance.
Description
Technical Field
The utility model belongs to the technical field of flexible display, and particularly relates to a quantum dot composite film applied to flexible display.
Background
Liquid crystal displays have been the dominant display market for a long time, but with the increasing demands of people for displays and the rapid development of flexible display screen technology, the disadvantages of low color reproducibility and low display brightness of liquid crystal displays are increasingly highlighted.
The flexible display screen adopts an organic material capable of actively emitting light and a flexible packaging technology, can realize the form of a display product with any shape, is a good candidate structure of a thinner, more curved and more flexible next-generation display screen, and the flexible material is a key for developing a flexible display. The quantum dot is made of semiconductor materials synthesized by zinc, selenium, sulfur and the like, and has the characteristics of high luminous efficiency, long service life and good color purity, and the diameter of the nano particles is 1-10 nm. The size and chemical composition of the quantum dot material can be changed to enable the fluorescence emission wavelength to cover the whole visible light region. The quantum dot film prepared by wrapping the quantum dot material with EVA can enable the material to obtain better flexibility, and lays a foundation for popularization and application in the flexible display field. The light purity emitted by the quantum dot film is very high, the color gamut can be greatly improved when the quantum dot film is used for a backlight source, the color is more vivid, and the color very close to a natural spectrum can be generated through the quantum dot film.
However, the existing quantum dot film can thoroughly destroy the whole quantum dot film due to the fact that the quantum dots are extremely easy to oxidize, water and oxygen which are exposed in the air are slightly mixed, and the traditional antistatic agent is coated on a transparent plate layer of the film in the use process of the existing quantum dot film, so that dependence can be generated on the environment, the stability of the antistatic agent can not be guaranteed in the environment with humidity and temperature change, and the antistatic capability is poor. In addition, since the quantum dot display uses the uv light emitting diode as the backlight source, a large amount of residual uv light is generated, and if the human body is excessively exposed to uv light, it may cause unrecoverable damage to the body, and uv light having a wavelength range of 320 to 400nm with a strong penetration force through epidermis and dermis may cause skin aging problems including skin elasticity decrease, wrinkles, freckles, etc., and may even induce skin cancer.
Disclosure of Invention
Aiming at the situation, the utility model provides the quantum dot composite film applied to flexible display, which has an antistatic and ultraviolet-resistant high-stability quantum dot film structure, and can well solve the problems that the existing quantum dot film is extremely easy to oxidize, so that the existing quantum dot film cannot exist stably in the air, the antistatic capability is poor, and an ultraviolet light emitting diode can generate residual ultraviolet rays when being applied to the quantum dot display structure as a backlight source, and external ultraviolet rays enter an excitation quantum dot material to pollute the light of a screen.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the quantum dot composite film comprises a quantum dot film, wherein the upper surface and the lower surface of the quantum dot film are respectively coated with a waterproof air-isolation coating and a waterproof air-isolation coating, the upper surface of the waterproof air-isolation coating is coated with an antistatic coating, the lower surface of the waterproof air-isolation coating is coated with an antistatic coating, and the upper surface of the antistatic coating is coated with an ultraviolet-resistant coating.
As another preferable scheme, the lower surface of the second antistatic coating layer can be further coated with the second ultraviolet resistant coating layer. It can be understood that the quantum dot composite film provided by the utility model can adopt a structure form of coating ultraviolet-resistant coatings on one side or a structure form of coating ultraviolet-resistant coatings on two sides.
Furthermore, the quantum dot film is an in-situ growth quantum dot optical film, and the in-situ growth quantum dot organic film layer with high dispersibility is used as a photoluminescence layer, so that the quantum dot optical film has the characteristics of low manufacturing cost, high controllability of the particle size of the quantum dots, good dispersibility and the like.
Further, the waterproof air-isolation coating I and the waterproof air-isolation coating II are single-layer or multi-layer composite film structures made of one or more materials selected from polyurethane resin, epoxy resin, organic silicon resin or parylene. Because the particle size of the quantum dot is between 1 and 10nm, the specific surface area is very large, so that oxygen and water vapor are easy to damage the surface of the quantum dot, and the coating is mainly used for isolating oxygen and water vapor and preventing the failure of the quantum dot material.
Further, the antistatic coating I and the antistatic coating II are antimony doped tin dioxide nano material coatings. The polymer has the advantages of good dispersibility, activity resistance, thermoplasticity and safety, the conductivity is not influenced by the dry humidity of the environment, the polymer has good antistatic capability under any environment and dry humidity condition, and the generation and influence of static are reduced.
Further, the ultraviolet resistant coating I and the ultraviolet resistant coating II are indium tin oxide coatings. The indium tin oxide is an environment-friendly water-based paint made of indium tin oxide, can reflect visible light in the range of 400-1800 nm, can effectively isolate solar heat radiation, has an infrared shielding rate of 70%, a visible light transmittance of 80% and an ultraviolet blocking of 99%, can play a good role in ultraviolet resistance and heat insulation, reduces the influence of high-temperature environment on a film, and simultaneously effectively prevents external ultraviolet light from entering an excitation quantum dot material to pollute light of a screen.
The utility model also includes other components that enable normal use thereof, all as is conventional in the art, and in addition, the devices or components not defined in the utility model are all well known in the art.
The beneficial effects of the utility model are as follows:
the quantum dot composite film applied to flexible display has the high-stability quantum dot film structure with good antistatic capability and ultraviolet resistance, can stably exist in air, has good antistatic capability, can effectively compensate the problem of residual ultraviolet generated in quantum dot display with an ultraviolet light emitting diode as a backlight source, and simultaneously prevents external ultraviolet from entering an excited quantum dot material to pollute light of a screen.
Drawings
Fig. 1 is a schematic structural diagram of a quantum dot composite film in example 1.
Fig. 2 is a schematic structural diagram of a quantum dot composite film in example 2.
FIG. 3 is a flow chart of the preparation process of the quantum dot composite film.
Detailed Description
The technical solutions of the present utility model will be clearly and completely described below in connection with specific embodiments, and it is obvious that the described embodiments are only some embodiments of the present utility model, not all embodiments.
Example 1
As shown in fig. 1, a quantum dot composite film applied to flexible display comprises a quantum dot film 1, wherein the upper surface and the lower surface of the quantum dot film 1 are respectively coated with a waterproof insulating air coating layer I2-1 and a waterproof insulating air coating layer II 2-2, the upper surface of the waterproof insulating air coating layer I2-1 is coated with an antistatic coating layer I3-1, the lower surface of the waterproof insulating air coating layer II 2-2 is coated with an antistatic coating layer II 3-2, and the upper surface of the antistatic coating layer I3-1 is coated with an ultraviolet-resistant coating layer I4-1.
The quantum dot film 1 is a high-dispersibility in-situ growth quantum dot optical film, and adopts the same prior art as the in-situ growth quantum dot optical film disclosed in the patent document CN104086091B, and has the advantages of simple preparation process, high controllability of the particle size of the quantum dot and good dispersibility.
The waterproof air-isolation coating I2-1 and the waterproof air-isolation coating II 2-2 are of a single-layer or multi-layer composite film structure made of one or more materials selected from polyurethane resin, epoxy resin, organic silicon resin or parylene.
It is understood that the polyurethane resin, epoxy resin, silicone resin, parylene, etc. are all conventionally known materials, such as polyurethane resin disclosed in patent document CN106125399B, epoxy resin, silicone resin disclosed in patent document CN106367069B, parylene material disclosed in patent document CN108417698B, etc.
The first antistatic coating layer 3-1 and the second antistatic coating layer 3-2 are antimony doped tin dioxide nano material coating layers, and the conductivity of the coating layers is basically not influenced by the humidity of the environment.
It is understood that the antimony doped tin dioxide nanomaterial employs a known material such as the antimony doped tin dioxide nanomaterial disclosed in patent document CN 103539197B.
The ultraviolet resistant coating I is 4-1, and the ultraviolet resistant coating I4-1 is an indium tin oxide coating. Indium tin oxide is an environmentally friendly aqueous coating.
It will be appreciated that the indium tin oxide coating is of a known material such as the indium tin oxide layer disclosed in patent document CN 104884246B.
Example 2
As shown in fig. 2, the quantum dot composite film in this embodiment is different from that in embodiment 1 only in that an anti-uv coating layer two 4-2 is additionally coated on the lower surface of the anti-static coating layer two 3-2, and the anti-uv coating layer two 4-2 is an indium tin oxide coating layer.
As shown in fig. 3, the preparation process steps of the quantum dot composite film in embodiment 1 or 2 are as follows:
firstly, preparing a novel in-situ growth high-dispersibility quantum dot optical film by using ITO glass (Indium Tin Oxides, indium tin oxide) as a substrate, in-situ growth of a high-dispersibility quantum dot organic film layer as a photoluminescent layer and organic spin coating, packaging and isolating processes.
And then, on the basis of the high-dispersity quantum dot optical film, respectively coating waterproof and air-isolating coatings (a single-layer or multi-layer composite film structure of polyurethane, epoxy resin, organic silicon resin or parylene) on the upper surface and the lower surface of the quantum dot optical film. Namely, the waterproof air-isolation coating can be a single-layer coating prepared by coating one single material of polyurethane resin, epoxy resin, organic silicon resin and parylene; the film layer can also be a multilayer composite laminated structure film layer made by coating two or more materials of polyurethane resin, epoxy resin, organic silicon resin and parylene.
Then, the upper surface and the lower surface of the composite film structure coated with the waterproof air-isolated coating are respectively coated with an antimony doped tin dioxide nano antistatic coating, and antimony doping is utilized to replace tin, so that oxygen vacancies or electrons are formed as carrier conductors when a defect solid is formed, the conductivity of the composite film structure is not influenced by the dry humidity of the environment, and the composite film structure has good antistatic capability under any environment and dry humidity conditions.
Finally, on the basis of the composite film structure with the antistatic coating coated on both sides, the indium tin oxide ultraviolet-resistant coating is coated on one side or both sides, and the indium tin oxide coating has good ultraviolet resistance and heat insulation functions, and meanwhile, the pollution of the light of the screen caused by the external ultraviolet entering the excitation quantum dot material is prevented.
The technical solution of the present utility model is not limited to the above-described specific embodiments, and many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments, and any technical modifications made within the spirit and principles of the present utility model fall within the scope of the present utility model.
Claims (6)
1. The quantum dot composite film applied to flexible display comprises a quantum dot film (1), and is characterized in that: the quantum dot film comprises a quantum dot film body, wherein the upper surface and the lower surface of the quantum dot film body (1) are respectively coated with a first waterproof isolation air coating (2-1) and a second waterproof isolation air coating (2-2), the upper surface of the first waterproof isolation air coating (2-1) is coated with a first antistatic coating (3-1), the lower surface of the second waterproof isolation air coating (2-2) is coated with a second antistatic coating (3-2), and the upper surface of the first antistatic coating (3-1) is coated with an ultraviolet-resistant coating (4-1).
2. A quantum dot composite film for flexible display according to claim 1, wherein: the quantum dot film (1) is an in-situ growth quantum dot optical film.
3. A quantum dot composite film for flexible display according to claim 1, wherein: the waterproof air-isolation coating I (2-1) and the waterproof air-isolation coating II (2-2) are of single-layer or multi-layer composite film structures made of polyurethane resin, epoxy resin, organic silicon resin or parylene materials.
4. A quantum dot composite film for flexible display according to claim 1, wherein: the ultraviolet resistant coating I (4-1) is an indium tin oxide coating.
5. A quantum dot composite film for flexible display according to any one of claims 1 to 4, wherein: the lower surface of the antistatic coating II (3-2) is coated with an ultraviolet-resistant coating II (4-2).
6. A quantum dot composite film for flexible display according to claim 5, wherein: and the ultraviolet-resistant coating II (4-2) is an indium tin oxide coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322265887.4U CN220733060U (en) | 2023-08-22 | 2023-08-22 | Quantum dot composite film applied to flexible display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322265887.4U CN220733060U (en) | 2023-08-22 | 2023-08-22 | Quantum dot composite film applied to flexible display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220733060U true CN220733060U (en) | 2024-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322265887.4U Active CN220733060U (en) | 2023-08-22 | 2023-08-22 | Quantum dot composite film applied to flexible display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220733060U (en) |
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2023
- 2023-08-22 CN CN202322265887.4U patent/CN220733060U/en active Active
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