CN206362962U - Quantum dot polaroid, liquid crystal panel and liquid crystal display device - Google Patents
Quantum dot polaroid, liquid crystal panel and liquid crystal display device Download PDFInfo
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- CN206362962U CN206362962U CN201621421142.6U CN201621421142U CN206362962U CN 206362962 U CN206362962 U CN 206362962U CN 201621421142 U CN201621421142 U CN 201621421142U CN 206362962 U CN206362962 U CN 206362962U
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- quantum dot
- liquid crystal
- polaroid
- wiregrating
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Abstract
The utility model provide a kind of quantum dot polaroid, liquid crystal panel and liquid crystal display device, including transparency carrier, be arranged on by nanometer embossing on the transparency carrier sub-wavelength wiregrating, be filled between adjacent wiregrating optically transparent material, be arranged on the quantum dot layer being scattered on the wiregrating in fluoropolymer resin.It is achieved thereby that quantum dot is integrated with polaroid, it is to avoid the separately manufactured cumbersome technique of polaroid and quanta point material conventional at present, meanwhile, LCD device structure and preparation technology based on quantum dot polaroid are simpler.
Description
Technical field
The utility model is related to display technology field, more particularly to a kind of quantum dot polaroid and liquid crystal display device.
Background technology
With the development of science and technology, the mankind for information transmission and visual experience in terms of increase in demand.At present, display
Gradually develop to high colour gamut, large scale, ultrathin direction, although Organic Light Emitting Diode, laser display, the pole of quantum dot light emitting two
The emerging Display Technique such as pipe has obtained development energetically, but these technologies are also to be improved, in the market the product of main flow
It is still lcd technology.Compared to Organic Light Emitting Diode, liquid crystal display device preparation condition is simple, and it respectively constitutes position
Can be in different place production, this is also one of advantage of lcd technology energy sustainable development.
Liquid crystal display device mainly includes backlight, down polaroid, liquid crystal layer, upper polaroid, color film etc., its operation principle
It is that the light that backlight is launched obtains linearly polarized light after down polaroid, sharp voltage drives the rotation of liquid crystal, to linearly polarized light
Polarization direction change, then projected from upper polaroid, the polarization direction of upper polaroid and the polarization direction of down polaroid
Vertically, so that intensity to control emergent light.Therefore, the combination of liquid crystal, upper polaroid and down polaroid three could control to show
That shows device goes out luminous intensity.
At present, the basic structure of the polaroid used on liquid crystal display device is two layers of cellulose triacetate thin film folder one
Layer has the polyvinyl alcohol of polarisation ability, and the effect of cellulose triacetate mainly shields to polyvinyl alcohol, and this is inclined
The thickness of mating plate is general in 0.1-0.3mm or so.One of the step of preparing liquid crystal display is exactly that polaroid is fitted in into liquid crystal
Glass substrate on, it was reported that cost ratio of the cost of polaroid in liquid crystal display component units is about 10%.
Quantum dot is a kind of inorganic semiconductor luminescence nanocrystalline of three-dimensional diameter all in the range of 1-20nm, due to its particle diameter
It is less than or close to exciton Bohr radius, quantum dot has the advantages that size tunable, half-peak width, photostability are strong thus wide
General is applied to display field.The combination of quantum dot and liquid crystal display brings more possibilities, mesh to liquid crystal display industry
Preceding common combination is to be prepared into Quantum Dot Glass pipe by quantum dot or be prepared into the mode of quantum dot diaphragm to be arranged on
Under down polaroid, generation white light, quantum are combined to Quantum Dot Glass pipe or exciting for quantum dot diaphragm by blue light source
It is typically simply to fit together to select between diaphragm and polaroid, so inevitably causes the numerous of preparation flow technique
It is trivial.Related quantum dot liquid crystal display device is being sold on the market.The letter of existing common quantum dot liquid crystal display device
Change structural representation as shown in figure 1, wherein after the transmitting of blue light backlight module 10 blue light, exciting red green quantum dot layer 11, being combined production
White light is changed into linearly polarized light by raw white light, down polaroid 12, then by being reached after liquid crystal infrabasal plate 13, liquid crystal 14, upper substrate 15
At upper polaroid 16.The intensity of white light projected at upper polaroid 16 is controlled by this process, so as to control liquid crystal
Show the brightness of device.
The combination of quantum dot and polaroid is preferably realized, the technique prepared and cost is saved, simplifies quantum dot liquid crystal
Application of the structure of showing device to quantum dot in display field has great importance.
Utility model content
Combined for current quantum dot with polaroid and the problem of quantum dot liquid crystal display device exists, the utility model purport
A kind of quantum dot polaroid and liquid crystal display device are being provided, the Making programme of quantum dot liquid crystal display device is effectively being saved, replaces
The use of generation traditional polaroid, simplifies the structure of device, is that the combination more optimized is provided between quantum dot and polaroid.
To achieve the above object, one side of the present utility model provides a kind of quantum dot polaroid, including transparency carrier, logical
Cross the sub-wavelength wiregrating that nanometer embossing is arranged on the transparency carrier, the optical clear material being filled between the wiregrating
The quantum dot layer expected, be arranged on the wiregrating, the quantum dot layer includes quantum dot and fluoropolymer resin, the quantum dot layer
Outside be also covered with water oxygen barrier layer.
Preferably, the width of the wiregrating is between 20-150nm；The distance between described wiregrating is between 20-150nm；
The depth of the wiregrating is between 50-200nm.
Preferably, the transparency carrier is glass or flexible substrate.
Preferably, the optically transparent material is recessed close to the micro-structural that quantum dot layer side is additionally provided with raising light extraction efficiency
Groove.
Another aspect of the present utility model provides a kind of liquid crystal panel, including infrabasal plate, liquid crystal and upper substrate, the lower base
Plate is above-mentioned quantum dot polaroid, and side and liquid crystal of the quantum dot polaroid transparency carrier away from quantum dot layer are close.
Another aspect of the present utility model provides a kind of liquid crystal display device, including backlight module and above-mentioned liquid crystal panel.
Another aspect of the present utility model provides a kind of liquid crystal display device, including backlight module and liquid crystal panel, described
Above-mentioned quantum dot polaroid is provided between the infrabasal plate of liquid crystal panel and the backlight module, the quantum dot polaroid is transparent
Side of the substrate away from quantum dot layer and liquid crystal are close
The utility model has the advantages that：The utility model utilizes the sub-wavelength of nano impression on the transparent substrate
The combination of wiregrating and quantum dot, it is integrated with polaroid to realize quantum dot, and the quantum dot polaroid can be solved at present often
Polaroid and the separately manufactured cumbersome technique of quanta point material, LCD device structure based on quantum dot polaroid and
Preparation technology is simpler, it is ensured that the step for attaching polaroid and quantum dot film is eliminated while the display effect of display
Suddenly.
Brief description of the drawings
Fig. 1 is the simplification structural representation of existing common quantum dot liquid crystal display device；
Fig. 2 is the structural representation of the quantum dot polaroid of the utility model embodiment；
Fig. 3 is the structural representation of the liquid crystal panel of the utility model embodiment；
Fig. 4 is the structural representation of the liquid crystal display device of the utility model embodiment；
Fig. 5 is the structural representation of the liquid crystal display device of another embodiment of the utility model.
Embodiment
Below in conjunction with the utility model embodiment, the technical scheme in the utility model embodiment is carried out in detail
Description, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole embodiments.
Based on the embodiment in the utility model, those of ordinary skill in the art are obtained on the premise of creative work is not made
The every other embodiment obtained, belongs to the utility model protection domain.
As shown in Fig. 2 the utility model provides a kind of quantum dot polaroid, including transparency carrier 24, pressed by nanometer
Sub-wavelength wiregrating 22 that print technology is arranged on transparency carrier 24, the optically transparent material 23 being filled between wiregrating 22, set
Quantum dot layer 21 on wiregrating 22, quantum dot layer 21 is included outside quantum dot 211 and fluoropolymer resin 212, quantum dot layer 21 also
Covered with water oxygen barrier layer 20.
There is nanometer embossing wiregrating 22 in great advantage, the utility model to be in terms of nano-scale pattern is prepared
Prepared using nanometer embossing, wiregrating 22 its have good polarization to visible ray.To prevent between adjacent wiregrating 22
Space accommodates red green quantum dot 211, so as to cause the reduction to the polarization capacity of wiregrating 22, is also filled up between adjacent wiregrating 22
There is optically transparent material 23.Then the quantum dot for being scattered in quantum dot 211 in fluoropolymer resin 212 is provided with wiregrating 22
Layer 21.Optically transparent material 23 is to prevent quantum dot to the filling first purpose between adjacent wiregrating 22 in the utility model
211 enter wiregrating space, and optically transparent material 23 can only fill the space between wiregrating 22, can also be further to wiregrating
22 are completely covered；Another purpose is exactly the use of optically transparent material 23, is to prevent wiregrating 22 and steam and oxygen etc.
One of mode of contact, so as to increase the service life of wiregrating 22.
The effect of water oxygen barrier layer 20 is to prevent the isolation of quantum dot layer 21 and extraneous steam and oxygen, so as to increase quantum
Quantum dot layer 21 is sealed in it between substrate 24 by the service life of point, water oxygen barrier layer 20, constitutes water oxygen barrier layer 20
Material include at least one of inorganic oxide and high-molecular organic material, inorganic oxide include Al, Ba, Ca, Mg,
At least one of Ni, Si, Ti or Zr oxide；High-molecular organic material includes silicones, photocuring adhesive, asphalt mixtures modified by epoxy resin
In fat, polyurethane, makrolon, polymethyl methacrylate, fluororesin, Colombia's resin, styreneo-acrylonitrile resin
It is at least one.Water oxygen barrier layer 20 is arranged on outside quantum dot layer 21 by way of coating, printing or spraying.
The polarization capacity of wiregrating 22 and the close phase of the distance between adjacent wiregrating unit in the width and wiregrating 22 of wiregrating 22
Close, in one preferred embodiment, the width of wiregrating between 20-150nm, the distance between wiregrating 20-150nm it
Between, the depth of wiregrating is between 50-200nm.
According to the different demands of transparency carrier 24, transparency carrier 24 can be inorganic material such as glass etc., or its
His flexible material, such as polyethylene film, polypropylene screen, polystyrene film, polyimide film, polycarbonate membrane.It is specific at one
Embodiment in, transparency carrier 24 be glass.
Wiregrating 22 comes from it for the polarization of light and possesses certain conductive capability, and the light of certain polarization direction can be entered
Row is eliminated, in one preferred embodiment, and wiregrating 22 is metal or the resin containing metal；In a more preferred reality
Apply in mode, wiregrating 22 is one kind in aluminium, silver or gold.
In one preferred embodiment, optically transparent material 23 includes machine silicon resinoid, acrylic resin, epoxy
At least one of resinoid and polyurethane, optically transparent material 23 are preferably the resin of the good properties in terms of oxygen is excluded.
During to prevent the light that quantum dot layer 21 is sent by optically transparent material 23, there is obvious reflection in light,
Refraction etc., which is unfavorable for fluoropolymer resin 212 in the phenomenon of light-out effect, quantum dot layer 21, needs the light with optically transparent material 23
Learn property similar.To increase the light extraction efficiency of quantum dot polaroid, reduction light is conducive to be worn among optically transparent material 23
Light loss when thoroughly caused by total reflection, the refractive index of optically transparent material 23 is preferably not greater than the folding of fluoropolymer resin 212
Penetrate rate.In one preferred embodiment, optically transparent material 23 and fluoropolymer resin 212 are same substance, in a tool
The material of optically transparent material 23 and fluoropolymer resin 211 is all acrylic resin in the embodiment of body.
Quantum dot 211 can select to mix for red quantum dot, green quantum dot, the one or more kinds of of blue quantum dot
Close；In a specific embodiment, the red green quantum dot layer that quantum dot 211 mixes for red and green quantum dot, another
In one specific embodiment, quantum dot 211 is green quantum dot.
Further to improve the light extraction efficiency of quantum dot polaroid in the utility model, at one preferred embodiment
In, optically transparent material 23 is additionally provided with the micro-structural groove for improving light extraction efficiency close to the side of quantum dot layer 21, and micro-structural is recessed
Groove includes prism shape and curved surface is semicircle, and micro-structural groove can be prepared by way of impressing, the use of the micro-structural groove
Can be with the use of prism film in liquid crystal display device, so as to realize the integration of quantum dot film, polaroid, prism film etc..
The fact one preferred in mode, light diffusion particle is also contained in quantum dot layer, the particle diameter of light diffusion particle is excellent
Elect 0.1-20 microns as.
Fig. 3 is a kind of structural representation of embodiment of the utility model liquid crystal panel, including infrabasal plate 31, the and of liquid crystal 32
Upper substrate 33, infrabasal plate 31 be above-mentioned quantum dot polaroid, side of the quantum dot polaroid transparency carrier away from quantum dot layer with
Liquid crystal is close.Constituting other necessary components of liquid crystal panel also includes thin film transistor (TFT), electrode, alignment film, frame glue, supporter
Deng.
Fig. 4 is a kind of structural representation of embodiment of the utility model liquid crystal display device, including backlight module 40, on
State liquid crystal panel 41 and upper polaroid 42；Hung down with the wire grid polarization direction of quantum dot polaroid the polarization direction of upper polaroid 42
Directly, upper polaroid 42 can be arranged on the wiregrating on upper substrate by way of nano impression, or set on other substrates
It is fitted in behind face on upper substrate.Upper polaroid 42 can also be that other such as polyvinyl alcohol are the polarisation that polarizing materials are constituted
Piece.
Fig. 5 is the structural representation of another embodiment of the utility model liquid crystal display device, including backlight module 50,
Liquid crystal panel 51 and upper polaroid 52, above-mentioned quantum dot is provided between the infrabasal plate 511 and backlight module 50 of liquid crystal panel 51
Polaroid 53, side of the quantum dot polaroid transparency carrier away from quantum dot layer and liquid crystal are close.
The backlight module that liquid crystal display device is used in the utility model includes light source, and light source is blue light source or blue light
The combination of light source and red light fluorescent powder.When light source is blue light source, quantum dot is red and green quantum dot in quantum dot layer
Mixing, red-green glow that quantum dot layer is sent is complex as white light with the blue light that blue light source is sent；When light source be blue light source and
During the combination of red light fluorescent powder, quantum dot is the mixing of green quantum dot, the green glow that quantum dot layer is sent and indigo plant in quantum dot layer
Radiant and the luminous blue feux rouges of red light fluorescent powder are complex as white light.In one preferred embodiment, backlight module is also wrapped
Include light guide plate, reflectance coating, blooming piece etc., light source is located at the incidence surface side of light guide plate.
The utility model realizes the integration of quantum dot and polaroid by nano impression wiregrating on the transparent substrate,
Technique and cost of manufacture etc. are saved, quantum dot polaroid prepared by the utility model can be used alone, and not only exist
Use in liquid crystal display device, the utility model is used for scope and not limited.Compared to the prior art, the utility model
The liquid crystal display device of middle use quantum dot polaroid simplifies configuration aspects and also illustrates certain advantage in manufacture craft.
Obviously, above-described embodiment is only intended to clearly illustrate example, and the not restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among changing still in protection domain of the present utility model.
Claims (7)
1. a kind of quantum dot polaroid, it is characterised in that：It is arranged on including transparency carrier, by nanometer embossing described transparent
Sub-wavelength wiregrating on substrate, the optically transparent material being filled between the wiregrating, the quantum dot being arranged on the wiregrating
Layer, the quantum dot layer includes being also covered with water oxygen barrier layer outside quantum dot and fluoropolymer resin, the quantum dot layer.
2. quantum dot polaroid according to claim 1, it is characterised in that：The width of the wiregrating 20-150nm it
Between；The distance between described wiregrating is between 20-150nm；The depth of the wiregrating is between 50-200nm.
3. quantum dot polaroid according to claim 1, it is characterised in that：The transparency carrier is glass or flexible liner
Bottom.
4. quantum dot polaroid according to claim 1, it is characterised in that：The optically transparent material is close to quantum dot layer
Side is additionally provided with the micro-structural groove for improving light extraction efficiency.
5. a kind of liquid crystal panel, including infrabasal plate, liquid crystal and upper substrate, it is characterised in that：The infrabasal plate is claim 1-4
In any quantum dot polaroid, side and liquid crystal of the quantum dot polaroid transparency carrier away from quantum dot layer be close.
6. a kind of liquid crystal display device, it is characterised in that：Including the liquid crystal panel described in backlight module and claim 5.
7. a kind of liquid crystal display device, it is characterised in that：Including backlight module and liquid crystal panel, the infrabasal plate of the liquid crystal panel
Any quantum dot polaroids of claim 1-6 are provided between the backlight module, the quantum dot polaroid is transparent
Side of the substrate away from quantum dot layer and liquid crystal are close.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621421142.6U CN206362962U (en) | 2016-12-23 | 2016-12-23 | Quantum dot polaroid, liquid crystal panel and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621421142.6U CN206362962U (en) | 2016-12-23 | 2016-12-23 | Quantum dot polaroid, liquid crystal panel and liquid crystal display device |
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| CN206362962U true CN206362962U (en) | 2017-07-28 |
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| CN201621421142.6U Active CN206362962U (en) | 2016-12-23 | 2016-12-23 | Quantum dot polaroid, liquid crystal panel and liquid crystal display device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107272094A (en) * | 2017-08-11 | 2017-10-20 | 太仓碧奇新材料研发有限公司 | The preparation method of 80nm period grat-ing structure feux rouges diffusion barriers |
| CN107272093A (en) * | 2017-08-11 | 2017-10-20 | 太仓碧奇新材料研发有限公司 | The preparation method of interface nanometer grating structure green glow diffusion barrier |
| CN107894626A (en) * | 2017-12-28 | 2018-04-10 | 南京联信自动化科技有限公司 | A kind of quantum dot polaroid |
| CN108241187A (en) * | 2016-12-23 | 2018-07-03 | 苏州星烁纳米科技有限公司 | Quantum dot polaroid, liquid crystal display panel and liquid crystal display device |
| CN108828836A (en) * | 2018-07-25 | 2018-11-16 | 惠州市华星光电技术有限公司 | Compound polaroid and liquid crystal display |
| CN109031778A (en) * | 2018-07-18 | 2018-12-18 | 惠科股份有限公司 | Luminous component and its manufacturing method and display device |
| WO2020168669A1 (en) * | 2019-02-21 | 2020-08-27 | 深圳市华星光电技术有限公司 | Quantum dot liquid crystal display |
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2016
- 2016-12-23 CN CN201621421142.6U patent/CN206362962U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108241187A (en) * | 2016-12-23 | 2018-07-03 | 苏州星烁纳米科技有限公司 | Quantum dot polaroid, liquid crystal display panel and liquid crystal display device |
| CN108241187B (en) * | 2016-12-23 | 2024-03-15 | 苏州星烁纳米科技有限公司 | Quantum dot polaroid, liquid crystal panel and liquid crystal display device |
| CN107272094A (en) * | 2017-08-11 | 2017-10-20 | 太仓碧奇新材料研发有限公司 | The preparation method of 80nm period grat-ing structure feux rouges diffusion barriers |
| CN107272093A (en) * | 2017-08-11 | 2017-10-20 | 太仓碧奇新材料研发有限公司 | The preparation method of interface nanometer grating structure green glow diffusion barrier |
| CN107894626A (en) * | 2017-12-28 | 2018-04-10 | 南京联信自动化科技有限公司 | A kind of quantum dot polaroid |
| CN109031778A (en) * | 2018-07-18 | 2018-12-18 | 惠科股份有限公司 | Luminous component and its manufacturing method and display device |
| WO2020015265A1 (en) * | 2018-07-18 | 2020-01-23 | 惠科股份有限公司 | Light emitting component and manufacturing method therefor, and display device |
| CN108828836A (en) * | 2018-07-25 | 2018-11-16 | 惠州市华星光电技术有限公司 | Compound polaroid and liquid crystal display |
| WO2020168669A1 (en) * | 2019-02-21 | 2020-08-27 | 深圳市华星光电技术有限公司 | Quantum dot liquid crystal display |
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