CN106374028A - Quantum dot film and preparation method therefor - Google Patents
Quantum dot film and preparation method therefor Download PDFInfo
- Publication number
- CN106374028A CN106374028A CN201610792440.4A CN201610792440A CN106374028A CN 106374028 A CN106374028 A CN 106374028A CN 201610792440 A CN201610792440 A CN 201610792440A CN 106374028 A CN106374028 A CN 106374028A
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- Prior art keywords
- layer
- quantum dot
- substrate
- water oxygen
- oxygen barrier
- Prior art date
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- 239000002096 quantum dot Substances 0.000 title claims abstract description 85
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 40
- 239000001301 oxygen Substances 0.000 claims abstract description 40
- 239000000758 substrate Substances 0.000 claims abstract description 36
- 239000010410 layer Substances 0.000 claims description 88
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 37
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 35
- 230000004888 barrier function Effects 0.000 claims description 31
- 239000011241 protective layer Substances 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 16
- 239000011347 resin Substances 0.000 claims description 10
- 229920005989 resin Polymers 0.000 claims description 10
- 230000009970 fire resistant effect Effects 0.000 claims description 5
- 239000004642 Polyimide Substances 0.000 claims description 3
- 229920001721 polyimide Polymers 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 2
- 150000001336 alkenes Chemical class 0.000 claims description 2
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 2
- 230000008021 deposition Effects 0.000 claims 1
- 238000004806 packaging method and process Methods 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 abstract 5
- 238000007789 sealing Methods 0.000 abstract 2
- 239000010408 film Substances 0.000 description 25
- 238000000034 method Methods 0.000 description 4
- 239000012528 membrane Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000004020 luminiscence type Methods 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 229920005570 flexible polymer Polymers 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/50—Wavelength conversion elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2933/00—Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
- H01L2933/0008—Processes
- H01L2933/0033—Processes relating to semiconductor body packages
- H01L2933/0041—Processes relating to semiconductor body packages relating to wavelength conversion elements
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Laminated Bodies (AREA)
- Led Device Packages (AREA)
Abstract
The invention discloses a quantum dot film and a preparation method therefor. The quantum dot film comprises a substrate, a quantum dot layer, a buffer layer, a protection layer, a water-oxygen blocking layer, and a curing layer, wherein the buffer layer is used for sticking and fixing the quantum dot layer with the substrate; the protection layer is formed on the quantum dot layer to seal and package the quantum dot layer so as to protect the quantum dot layer; the water-oxygen blocking layer is used for sealing and packaging the substrate, the buffer layer, the quantum dot layer and the protection layer in the interior of the water-oxygen blocking layer; and the curing layer is used for sealing and packaging the water-oxygen blocking layer in the interior of the curing layer. According to the quantum dot film provided by the invention, the quantum dot layer and the water-oxygen blocking layer are fully packaged and protected in an all-around manner, so that the quantum dot film has relatively high structural stability and relatively long service life.
Description
Technical field
The present invention relates to display field, especially a kind of quantum dot film and preparation method thereof.
Background technology
The display of main flow is lcd pattern in the market, that is, need the light source that an active lights, on superposition panel
Rgb colored filter, realizes light and shade and the conversion of color by controlling the steering of liquid crystal.This technology is due to technology maturation, yield
Height, the relatively low favor receiving market of cost.But low also the enduring to the fullest extent always of its color saturation denounces.Therefore, it is directed in the industry lcd
Colour gamut lift technique conducts extensive research exploitation, wherein comprises the improvement of led autofluorescence powder technology, is also contained in led
Outside increase a kind of other mechanism or thin film, such as quantum dot film realizes the increase of colour gamut.Quanta point material principle of luminosity
After being to receive the exciting of specific band blue light, send HONGGUANG and green glow.Because its phototranstormation efficiency is high, luminescence band is narrow, because
This can obtain the high-quality colour gamut of ntsc more than 100%, receives pursuing in the industry.But quanta point material due to itself
Thermostability and resistance to water oxygen are not enough, and it are made and just becomes complicated and high cost.Such as it is formed with upper and lower two water oxygens resistance
The quantum dot film (its English name is quantum dot enhancement film, abbreviation qdef) of barrier film protection, whole face
It is applied to back light for display device or be encapsulated in glass tubing for side entrance back unit.
The luminescent device of existing quantum dot product mainly has two kinds to be used by extensive volume production.
The quantum dot film product (qdef) of first on surface application model, by upper and lower two water oxygen Obstruct membranes pair
Quantum dot carries out the water oxygen protection of above-below direction.This luminescent device major defect is: first, cover whole viewing area,
High cost;Second, qdef side no water oxygen barrier protection, easily causes marginal area and lost efficacy;3rd, the application of whole face property easily because
The point in somewhere is scarce to cause regional inefficacy, causes whole machine display to lose efficacy, loses into multiple and amplify.
Another be on edge application model its primary structure of qd tube. be strip glass tubing encapsulation quantum dot,
For side entrance back structure.Its major defect is that application model is restricted, and is only used for side entering type.
Content of the invention
First purpose of the present invention is: for the problem in background technology, provides a kind of structural stability high and uses
The quantum dot film of life-span length.
In order to reach above-mentioned first purpose, the technical scheme is that
A kind of quantum dot film, comprising:
Substrate;
Quantum dot layer;
Cushion, described quantum dot layer and described substrate are cohered fixation by it;
Protective layer, it is formed on described quantum dot layer and encapsulates described quantum dot layer, with to described quantum dot layer
Protected;
Water oxygen barrier layer, its by described substrate, described cushion, described quantum dot layer and described protective layer all encapsulate in
In it;And
Cured layer, described water oxygen barrier layer is all encapsulated in the inner by it, to protect to described water oxygen barrier layer.
In some embodiments of the invention, described substrate is macromolecular material.It is further preferable that described substrate is pet
Material.
In the other preferred embodiment of the present invention, described protective layer is fire resistant resin.It is further preferable that described guarantor
Sheath is one of olefin(e) acid resinoid, epoxylite or these three fire resistant resins of polyimide based resin.
Second object of the present invention is: for the problem in background technology, provides a kind of quantum dot film of said structure
Preparation method.
In order to reach above-mentioned second purpose, the technical scheme is that
A kind of preparation method of said structure quantum dot film, comprising:
Substrate is provided;
Form cushion on the substrate;
Quantum dot layer is formed on described cushion;
The protective layer that described quantum dot layer is encapsulated is formed on described quantum dot layer;
Formed described substrate, described cushion, described quantum dot layer and described protective layer all enveloping water oxygens in the inner
Barrier layer;
Form the cured layer in the inner by the enveloping of described water oxygen barrier layer.
In some currently preferred embodiments of the present invention, described water oxygen barrier layer is formed using atomic deposition technique.
The invention has the advantage that
1st, the quantum dot layer in this quantum dot of present invention film carried out by corresponding structure sheaf upper and lower, left and right comprehensive
Packaging protection, effectively improves the ageing-resistant ability of quantum dot layer, increased its service life.
2nd, the water oxygen barrier layer in this quantum dot of present invention film carries out comprehensive guarantor by by its cured layer encapsulating comprehensively
Shield, so that water oxygen barrier layer all can exempt from destruction everywhere.
3rd, water oxygen barrier layer covers to the sidepiece of quantum dot layer, so that the sidepiece of quantum dot layer also can obtain water oxygen and protect
Shield.
4th, water oxygen barrier layer need not be covered on substrate in whole face, reduces material cost, and avoids in conventional art
Because of the application of water oxygen Obstruct membrane whole face property, the easy point because of somewhere lacks and causes regional inefficacy, the inefficacy of whole machine display, loses
Become the problem that multiple amplifies.
5th, this quantum dot of present invention film with flexible polymer material layer as substrate, and substrate and quantum dot layer it
Between laying there is the cushion of bond performance, make this luminescent device have splendid optical property and peeling resistance.
6th, the quantum dot layer in this quantum dot of present invention film adopts special formula composition, and colourity can be realized
More than ntsc100%, and realize white balance.
Brief description
Below in conjunction with the accompanying drawings and embodiment the invention will be further described:
Fig. 1 is the structural representation of quantum dot film in the embodiment of the present invention;
Fig. 2 is the obtained spectrogram under the exciting of led blue light source of the present embodiment of the present invention this quantum dot film;
Wherein: 1- substrate, 2- cushion, 3- quantum dot layer, 4- protective layer, 5- water oxygen barrier layer, 6- cured layer.
Specific embodiment
Combine accompanying drawing below by specific embodiment the present invention is described in further detail.The present invention can be with multiple
Different forms is realizing the embodiment however it is not limited to described by the present embodiment.The purpose of detailed description below is provided
It is easy for the disclosure of invention is become apparent from thorough explanation, the words of the wherein indicating position such as upper and lower, left and right is only pin
For shown structure position in respective figure.
However, those skilled in the art may be aware that one or more of details descriptions can be by
Omit, or can also be using other methods, assembly or material.In some instances, some embodiments are not described
Or be not described later in detail.
Additionally, technical characteristic described herein, technical scheme can also be closed with any in one or more embodiments
Suitable mode combines.For a person skilled in the art it is easy to understand the method relevant with embodiment provided herein
Step or operation order can also change.Therefore, any order in drawings and Examples is merely illustrative purposes, not secretly
Show requirement in a certain order, require unless expressly stated according to a certain order.
Fig. 1 shows a specific embodiment of the present invention this quantum dot film, and it includes the base being closely linked
Plate 1, cushion 2, quantum dot layer 3, protective layer 4, water oxygen barrier layer 5 and cured layer 6.Wherein:
Substrate 1 is flexible macromolecular material, in the present embodiment specially pet material.Certainly, this substrate 1 can also
Using other stratified materials.
Cushion 2 is equivalent to a layer binder, and it is used for for quantum dot layer 3 and substrate 1 cohering fixation, lifts quantum dot layer
Peeling force between 3 and substrate 1.
Quantum dot layer 3 on cushion 2, quantum dot in this quantum dot layer 3 by certain proportioning red quantum point and
Green quantum dot is constituted, and can send redness and the green light of specific band under the exciting of blue-light source, due to its half-peak width,
Redness, green band is non-overlapping, can effectively improve the color saturation of display.
Protective layer 4 is formed on quantum dot layer 3 and encapsulates this quantum dot layer 3, so that this quantum dot layer 3 is each
Individual partly all can be protected well.This is because quantum dot layer 3 structural instability, therefore need to make immediately after film forming
This protective layer 4 carries out pre- protection.Obviously, protective layer 4 is formed using the material that can protect quantum dot Rotating fields stability.Consider
Water oxygen barrier layer 5 on this protective layer 4 need to be through high-temperature process when making, therefore this protective layer 4 is preferably with fire resistant resin
Material, such as acrylic resin, epoxylite and polyimide based resin.
In fact, protective layer 4 is preferable with the associativity of substrate 1, do not need to strengthen protective layer using above-mentioned cushion 2
Peeling force between 4 and substrate 1, accordingly it is also possible to the buffer layer part of protective layer in Fig. 14 and substrate 1 junction is removed,
And making the bottom of protective layer 4, directly contact connection with substrate 1 (rather than cushion) (no longer indirect by cushion 2 therebetween
It is connected).Why the present embodiment remains buffer layer structure in the junction of protective layer 4 and substrate 1, is to make work based on simplification
The consideration of skill.
Substrate 1, described cushion 2, quantum dot layer 3 and protective layer 4 are all encapsulated portion in the inner by water oxygen barrier layer 5, its
It is the Rotating fields with certain water oxygen barriers function.This water oxygen barrier layer 5 both can have been generated it is also possible to by inorganic by inorganic material
Material membrane and organic material film multilayer film are composited.The water oxygen rejection rate of this water oxygen barrier layer 5 is typically in 10^-1~-2 etc.
Level or higher grade, are mainly defined by the needs meeting protection quantum dot layer.
Water oxygen barrier layer 5 is all encapsulated portion in the inner by cured layer 6, for protecting the various pieces of water oxygen barrier layer 5
All it is not destroyed.Obviously, cured layer 6 is formed using the material that can protect water oxygen barrier layer 5 structural stability.In the present embodiment
By resin-coated generation, from unlike above-mentioned protective layer 4, this cured layer 6 not necessarily adopts fire resistant resin to this cured layer
Material, no high temperature resistant requirement.
This for the present embodiment quantum dot film is tested under the exciting of led blue light source by we, and the spectrum obtaining is such as
Shown in Fig. 2, can be seen that from this Fig. 2, obtained from this quantum dot film excites, the luminescence band of HONGGUANG and green glow is narrow, pure
Degree is high, can effectively realize the increase of colour gamut, improves color saturation.
Refer again to shown in Fig. 1, the preparation method of the present embodiment this quantum dot film, comprise the following steps:
1) provide the substrate 1 being formed by pet film.
2) form cushion 2 on substrate 1, the coating thickness of cushion 2 is preferably between 5~10 microns.
3) form quantum dot layer 3 on the buffer layer 2.
4) protective layer 4 encapsulating this quantum dot layer is formed on quantum dot layer 3.
5) atomic deposition technique is adopted to form water oxygen barrier layer 5, this water oxygen barrier layer 5 is by substrate 1, cushion 2, quantum dot
Layer 3 and protective layer 4 all encapsulate in the inner.
6) form cured layer 6, and water oxygen barrier layer 5 is all encapsulated portion in the inner by cured layer 6.
The equal buyable of various raw materials employed in each embodiment above-mentioned or pass through conventional method system.
Above content is to further describe it is impossible to assert this with reference to specific embodiment is made for the present invention
Bright it is embodied as being confined to these explanations.For general technical staff of the technical field of the invention, do not taking off
On the premise of present inventive concept, some simple deduction or replace can also be made.
Claims (7)
1. a kind of quantum dot film is it is characterised in that include:
Substrate (1);
Quantum dot layer (3);
Cushion (2), described quantum dot layer (3) and described substrate (1) are cohered fixation by it;
Protective layer (4), it is formed at described quantum dot layer (3) above and encapsulates, described quantum dot layer (3) with to described quantum
Point layer (3) is protected;
Water oxygen barrier layer (5), it is by described substrate (1), described cushion (2), described quantum dot layer (3) and described protective layer
(4) all encapsulate in the inner;And
Cured layer (6), described water oxygen barrier layer (5) is encapsulated in the inner by it, to protect to described water oxygen barrier layer (5).
2. quantum dot film according to claim 1 is it is characterised in that described substrate (1) is macromolecular material.
3. quantum dot film according to claim 2 is it is characterised in that described substrate (1) is pet material.
4. quantum dot film according to claim 1 is it is characterised in that described protective layer (4) is fire resistant resin.
5. quantum dot film according to claim 4 is it is characterised in that described protective layer (4) is olefin(e) acid resinoid, epoxiess
Resin or polyimide based resin.
6. a kind of preparation method of quantum dot film as described in any claim in Claims 1 to 5 is it is characterised in that include:
Substrate (1) is provided;
In described substrate (1) upper formation cushion (2);
In described cushion (2) upper formation quantum dot layer (3);
Above form the protective layer (4) that described quantum dot layer (3) is encapsulated in described quantum dot layer (3);
Formed by described substrate (1), described cushion (2), described quantum dot layer (3) and described protective layer (4) all encapsulate in
Its interior water oxygen barrier layer (5);
Form the cured layer (6) in the inner by the enveloping of described water oxygen barrier layer (5).
7. preparation method according to claim 6 is it is characterised in that described water oxygen barrier layer (5) adopts atomic deposition skill
Art is formed.
Priority Applications (1)
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CN201610792440.4A CN106374028A (en) | 2016-08-31 | 2016-08-31 | Quantum dot film and preparation method therefor |
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CN201610792440.4A CN106374028A (en) | 2016-08-31 | 2016-08-31 | Quantum dot film and preparation method therefor |
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Publication Number | Publication Date |
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Family
ID=57899875
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CN201610792440.4A Pending CN106374028A (en) | 2016-08-31 | 2016-08-31 | Quantum dot film and preparation method therefor |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108400223A (en) * | 2018-05-07 | 2018-08-14 | 深圳技术大学(筹) | Light-emitting diode encapsulation structure, quantum dot sealing unit and preparation method thereof |
CN109828408A (en) * | 2017-11-23 | 2019-05-31 | 张家港康得新光电材料有限公司 | Novel backlight module structure and its application |
CN109950386A (en) * | 2019-04-10 | 2019-06-28 | 东莞市光志光电有限公司 | A kind of structure and preparation method thereof based on quantum dot full-color light-emitting Mini or Micro LED |
WO2019153416A1 (en) * | 2018-02-06 | 2019-08-15 | 惠州市华星光电技术有限公司 | Quantum dot led and manufacturing method |
WO2019153415A1 (en) * | 2018-02-06 | 2019-08-15 | 惠州市华星光电技术有限公司 | Quantum dot led and preparation method therefor |
CN110265575A (en) * | 2019-06-26 | 2019-09-20 | 京东方科技集团股份有限公司 | A kind of display panel and preparation method thereof, display device |
CN111584745A (en) * | 2020-05-13 | 2020-08-25 | 深圳市华星光电半导体显示技术有限公司 | Display panel and method for manufacturing the same |
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JP2013033833A (en) * | 2011-08-01 | 2013-02-14 | Panasonic Corp | Wavelength conversion film and light emitting device and lighting device which use the same |
CN105098088A (en) * | 2014-05-05 | 2015-11-25 | Tcl集团股份有限公司 | Flexible display and thin film packaging method thereof |
WO2016098504A1 (en) * | 2014-12-20 | 2016-06-23 | 三菱樹脂株式会社 | Sealing film for electronic members |
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2016
- 2016-08-31 CN CN201610792440.4A patent/CN106374028A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2013033833A (en) * | 2011-08-01 | 2013-02-14 | Panasonic Corp | Wavelength conversion film and light emitting device and lighting device which use the same |
CN105098088A (en) * | 2014-05-05 | 2015-11-25 | Tcl集团股份有限公司 | Flexible display and thin film packaging method thereof |
WO2016098504A1 (en) * | 2014-12-20 | 2016-06-23 | 三菱樹脂株式会社 | Sealing film for electronic members |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109828408A (en) * | 2017-11-23 | 2019-05-31 | 张家港康得新光电材料有限公司 | Novel backlight module structure and its application |
WO2019153416A1 (en) * | 2018-02-06 | 2019-08-15 | 惠州市华星光电技术有限公司 | Quantum dot led and manufacturing method |
WO2019153415A1 (en) * | 2018-02-06 | 2019-08-15 | 惠州市华星光电技术有限公司 | Quantum dot led and preparation method therefor |
CN108400223A (en) * | 2018-05-07 | 2018-08-14 | 深圳技术大学(筹) | Light-emitting diode encapsulation structure, quantum dot sealing unit and preparation method thereof |
CN109950386A (en) * | 2019-04-10 | 2019-06-28 | 东莞市光志光电有限公司 | A kind of structure and preparation method thereof based on quantum dot full-color light-emitting Mini or Micro LED |
CN109950386B (en) * | 2019-04-10 | 2020-11-24 | 东莞市光志光电有限公司 | Quantum dot-based full-color light-emitting Mini or Micro LED structure and preparation method thereof |
CN110265575A (en) * | 2019-06-26 | 2019-09-20 | 京东方科技集团股份有限公司 | A kind of display panel and preparation method thereof, display device |
CN111584745A (en) * | 2020-05-13 | 2020-08-25 | 深圳市华星光电半导体显示技术有限公司 | Display panel and method for manufacturing the same |
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Application publication date: 20170201 |