CN206400222U - A kind of quantum dot membrane material structure and LED backlight/illumination panel - Google Patents
A kind of quantum dot membrane material structure and LED backlight/illumination panel Download PDFInfo
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- CN206400222U CN206400222U CN201621337931.1U CN201621337931U CN206400222U CN 206400222 U CN206400222 U CN 206400222U CN 201621337931 U CN201621337931 U CN 201621337931U CN 206400222 U CN206400222 U CN 206400222U
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Abstract
The utility model provides a kind of quantum dot membrane material structure; the quantum dot membrane material structure is made up of outer layer protection material and middle quanta point material; the middle quanta point material is one layer, two layers or multilayer, and each layer is the array or figure of wavelength of the same race or wavelength quanta point material not of the same race.The utility model can be prevented effectively from the mutual absorption between different wave length quanta point material, make what LED sent to excite luminous energy to be utilized effectively；Simultaneously, the structure is by widening the distance of life-span shorter short-wave band quantum dot and excitation source, material can effectively be reduced because heated caused life time decay is inconsistent, avoid using caused picture or light extraction color changing for a long time, on the basis of wide colour gamut is ensured, brightness and the colour rendering of display or illumination panel are effectively lifted；In addition, can be prevented effectively to go out to shield the problem of uniformity of chromaticity is not good caused by a variety of different quanta point materials mix inequality with colloidal materials by this kind of mode.
Description
Technical field
The utility model is related to a kind of optics for being applied to display backlight or face plate illumination, and in particular to Yi Zhongliang
Son point membrane material structure and its application, belong to semiconductor display backlight or illumination application field.
Background technology
At present, LCD TV on the market is typically white as backlight using the light-emitting mode of blue-ray LED+yellow fluorescent powder
Light scheme, but be due to the red, missing of green components, cause to show that color domain coverage ratio is relatively low, the conversion efficiency of backlight is relatively low.
In consideration of it, quanta point material is applied in display backlight as high efficient luminous material of new generation, for adjusting colour gamut, color is enriched
Color display effect.
Application of the quantum dot in display industry mainly has three kinds of modes：One kind is straight using quanta point material as fluorescent material
Connect the On-Chip modes being packaged together with blue-ray LED；A kind of is that red green two amounts point mixing is loaded into the thin of application of vacuum
In glass tube, then it is placed in the On-Edge modes of light-guide edge；Also one kind is to enclose certain film after red green quantum dot is mixed
Diaphragm is made in material, replaces diffuser plate, is placed on light guide plate, the mode referred to as On-Surface.Three of the above mode, respectively
The characteristics of having each, but on the whole, first way is currently limited by the performance development degree of quanta point material, it is impossible to realize
Production application；Although the second way saves quanta point material than the third mode, because glass tube is to technique
It is required that higher, complete machine cost is difficult to be reduced to general popular acceptance level, is unfavorable for occupying market；At present, with quantum
The raising of point material Integral luminous performance and the reduction of cost, most easily realize specular conversion efficiency, high extracting efficiency, high wavelength
The scheme of utilization rate should also be the third On-Surface mode.
However, On-Surface quantum dot Display Realization pattern is due to the quantum dot of a variety of wave bands being mixed,
And quanta point material has the property of broad absorption band in itself, the mutual absorption easily made between each monochrome band is serious, causes this kind
The back light of mode is difficult even light mixing, is unfavorable for backlight and shows the color uniformity of product and the lifting of brightness.
Similar to display backlight, as the application of the development illumination panel lamp of LED industry is also increasingly wider, same to conduct
Area source, the two has extremely similar technical scheme and requirement.The two is typically using LED white lights lamp bar collocation optical lens at present
Mirror realizes that the photochromic uniformity requirement to planar light is higher, while also requiring long-term photochromic stability and brightness.
Utility model content
The purpose of this utility model is that the photochromic uniformity for providing a kind of planar light is high, and photochromic stability and brightness are kept
The optics for being applied to display backlight or face plate illumination of time length.
In order to solve the above problems, the utility model provides a kind of quantum dot membrane material structure, the quantum dot membrane material structure
It is made up of outer layer protection material and middle quanta point material, the middle quanta point material is one layer, two layers or multilayer, each layer
For wavelength of the same race or wavelength quanta point material not of the same race array or figure.
Preferably, the outer layer protection material can occur on random layer quanta point material surface, for each layer quantum dot
Material formation protective effect, while may be such that luminous uniform through membrane material outgoing, the good area source of formation；The intermediate layer amount
Son point material can by Cd, In, P, Cu, S, C or halogen it is a kind of, two or more constitute.
Preferably, the middle quanta point material that two layers or multilayer are stacked, the shorter quantum dot of launch wavelength is typically in hair
Penetrate directly over longer wavelengths of quantum dot, or adjacent position just upper or underface.
Preferably, the array or figure are realized by dispensing of ruling, spraying, transfer or silk-screen printing technique.
The utility model also provides a kind of LED backlight/illumination panel, including quantum dot membrane material structure and LED light sources, institute
LED/light source is stated positioned at the bottom of the quantum dot membrane material structure or sidepiece, i.e., from bottom entering light or sidepiece entering light, the quantum dot
Membrane material structure is the quantum dot membrane material structure described in any of the above-described.
Preferably, the quanta point material of longer emission wavelength is located at the one of close light source in the quantum dot membrane material structure
Side.
Preferably, the quantum dot membrane material structure is provided with diffusion sheet, and reflector plate, the LED/light source position is arranged below
Above the reflector plate, backboard is arranged below in the reflector plate；The LED is blue-ray LED or adds fluorescent material in the led
Or other glow colors LED after other materials；The LED is provided with the optical lens for being used for lifting light-emitting uniformity.
Preferably, the quantum dot membrane material structure is provided with diffusion sheet, in turn below provided with light guide plate and reflector plate, institute
LED/light source is stated positioned at the light guide plate sidepiece, i.e. sidepiece entering light；The LED be blue-ray LED or in the led add fluorescent material or
Other glow colors LED after other materials；The LED is provided with the optical lens for being used for lifting light-emitting uniformity.
Relative to prior art, the utility model has following technique effect：
The utility model can be prevented effectively from the mutual absorption between different wave length quanta point material, make what LED sent to swash
It is luminous to be utilized effectively；Meanwhile, the structure by widening the distance of life-span shorter short-wave band quantum dot and excitation source,
Material can effectively be reduced because heated caused life time decay is inconsistent, it is to avoid for a long time using caused picture or light extraction
Color changes, on the basis of wide colour gamut is ensured, effectively brightness and the colour rendering of lifting display or illumination panel；In addition, logical
Cross this kind of mode and can be prevented effectively to go out to shield colourity caused by a variety of different quanta point materials mix inequality with colloidal materials
The problem of uniformity is not good.
Brief description of the drawings
Fig. 1 is the single layer structure quantum dot membrane material structural representation of the utility model embodiment.
Fig. 2 is Fig. 1 left view.
Fig. 3 is the sandwich construction quantum dot membrane material structural representation of the utility model embodiment.
Fig. 4 is Fig. 3 left view.
The structural representation of direct-type backlight/illumination panel of Fig. 5 application the utility model embodiments.
The structural representation of side entrance back/illumination panel of Fig. 6 application the utility model embodiments.
Embodiment
Embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.It should be noted that not rushing
In the case of prominent, the feature in embodiment and embodiment in the application can be mutually combined.
Embodiment one：
As shown in Figure 1-2, the utility model provides a kind of quantum dot membrane material structure, and quantum dot membrane material structure 6 is protected by outer layer
Protective material and middle quanta point material composition, outer layer protection material are that Obstruct membrane 5 and lower floor's protection Obstruct membrane 1 are protected in upper strata.In
Between quanta point material be one layer, be the array of two kinds of wavelength quanta point materials, respectively the first array 2, the second array 3.Outer layer
Protection materials are used for quanta point material formation protective effect, while may be such that luminous uniform through membrane material outgoing, form good
Area source.
Preferably, intermediate layer quanta point material can be by a kind of, two or more structures in Cd, In, P, Cu, S, C or halogen
Into.
Preferably, array or figure are realized by dispensing of ruling, spraying, transfer or silk-screen printing technique.
The utility model also provides a kind of preparation method of quantum dot membrane material structure, comprises the following steps：
A) applied in barrier membrane material and be covered with protection materials or binding agent；
B) quanta point material is well mixed or is dissolved in related solvents with silica gel, in the membrane material comprising protection materials
Quantum dot is arranged in the form of certain array or figure coating by dispensing of ruling, spraying, transfer or the mode such as silk-screen printing,
Afterwards in certain temperature, can include protective atmosphere, firing equipment on make its solidify or the complete solvent that volatilizees, formed one layer light
Layer；
C) applied on luminescent layer and be covered with protection materials or binding agent and cover barrier membrane material, form sandwich structure.
Embodiment two：
As shown in Figure 3-4, the utility model provides a kind of quantum dot membrane material structure, and quantum dot membrane material structure 6 is protected by outer layer
Protective material and middle quanta point material composition, outer layer protection material are that Obstruct membrane 5 and lower floor's protection Obstruct membrane 1 are protected in upper strata.In
Between quanta point material be two layers, be the array of three kinds of wavelength quanta point materials, respectively the first array 2, the second array the 3, the 3rd
Array 4.First array 2, the second array 3 are in lower floor, and the 3rd array 4 is on upper strata.
Preferably, the middle quanta point material that two layers or multilayer are stacked, the shorter quantum dot of launch wavelength is typically in hair
Penetrate directly over longer wavelengths of quantum dot, or adjacent position just upper or underface.
Preferably, outer layer protection material can occur on random layer quanta point material surface, for each layer quanta point material
Protective effect is formed, while may be such that luminous uniform through membrane material outgoing, the good area source of formation；Intermediate layer quanta point material
Can by Cd, In, P, Cu, S, C or halogen it is a kind of, two or more constitute.
Preferably, array or figure are realized by dispensing of ruling, spraying, transfer or silk-screen printing technique.
The utility model also provides a kind of preparation method of quantum dot membrane material structure, comprises the following steps：
A) applied in barrier membrane material and be covered with protection materials or binding agent；
B) quanta point material is well mixed or is dissolved in related solvents with silica gel, in the membrane material comprising protection materials
Quantum dot is arranged in the form of certain array or figure coating by dispensing of ruling, spraying, transfer or the mode such as silk-screen printing,
Afterwards in certain temperature, protective atmosphere can be included, firing equipment on it is solidified or the complete solvent that volatilizees, repeat more than it is related
Operation forms one layer, two layers or multilayer luminescent layer；
C) applied on luminescent layer and be covered with protection materials or binding agent and cover barrier membrane material, form sandwich structure.
Embodiment three：
As shown in figure 5, the utility model provides a kind of LED backlight/illumination panel, including quantum dot membrane material structure 6 and LED
Light source 10, LED/light source 10 is located at the bottom of quantum dot membrane material structure 6, i.e., from bottom entering light.Quantum dot membrane material structure 6 is implementation
The quantum dot membrane material structure of example one or two, same section is repeated no more.
Preferably, the quanta point material of longer emission wavelength is located at close to the side of light source in quantum dot membrane material structure 6.
Preferably, quantum dot membrane material structure 6 is provided with diffusion sheet 7 above, reflector plate 8 is arranged below, LED light sources 10 are located at
Above reflector plate 8, backboard 9 is arranged below in reflector plate 8；LED is blue-ray LED or added in the led after fluorescent material or other materials
Other glow colors LED；LED is provided with the optical lens 12 for being used for lifting light-emitting uniformity.
The utility model also provides a kind of preparation method of LED backlight/illumination panel, comprises the following steps：
A) by blue-ray LED or it is mixed with the LED of fluorescent material and is fixed on pcb board, forms LED light bar 11；
B) applied in barrier membrane material and be covered with protection materials or binding agent；
C) quanta point material is well mixed or is dissolved in related solvents with silica gel, in the membrane material comprising protection materials
Quantum dot is arranged in the form of certain array or figure coating by dispensing of ruling, spraying, transfer or the mode such as silk-screen printing,
Afterwards in certain temperature, protective atmosphere can be included, firing equipment on it is solidified or the complete solvent that volatilizees, repeat more than it is related
Operation forms one layer, two layers or multilayer luminescent layer；
D) applied on luminescent layer and be covered with protection materials or binding agent and cover barrier membrane material, form sandwich structure；
E) above sandwich structure quantum dot membrane material is combined plus diffusion sheet with reflector plate with LED light bar 11, and finally
Form white light backlight panel.
LED backlight/illumination panel that the present embodiment is provided can be prevented effectively from the phase between different wave length quanta point material
Mutually absorb, make what LED sent to excite luminous energy to be utilized effectively, on the basis of wide colour gamut is ensured, effectively lifting display or
The brightness of illumination panel and colour rendering.When luminescent layer is sandwich construction, by widening life-span shorter green light quantum point with swashing
The distance of light emitting source, can be prevented effectively from due to material by long-time of the thermogenetic life-span caused by different using picture or go out
Photochromic color change, on the basis of wide colour gamut is ensured, effectively lifts brightness and the colour rendering of display or illumination panel；In addition,
It can be prevented effectively to go out to shield color caused by a variety of different quanta point materials mix inequality with colloidal materials by this kind of mode
Spend the problem of uniformity is not good.
Compared with single layer structure, the characteristics of luminescent layer is sandwich construction is as follows：
Sandwich construction is conducive to improving light extraction spectrum, realizes full spectrum light extraction, while being also prevented from occurring a variety of light
Material mixes uneven and storeroom with colloid and mutually absorbs caused photochromic lack of homogeneity, the low problem of product yield.
Example IV：
As shown in fig. 6, the utility model provides a kind of LED backlight/illumination panel, including quantum dot membrane material structure 6 and LED
Light source 10, LED/light source 10 is located at the sidepiece of quantum dot membrane material structure 6, i.e., from sidepiece entering light.Quantum dot membrane material structure 6 is implementation
The quantum dot membrane material structure of example one or two, same section is repeated no more.
Preferably, the quanta point material of longer emission wavelength is located at close to the side of light source in quantum dot membrane material structure.
Preferably, quantum dot membrane material structure 6 is provided with diffusion sheet 7 above, in turn below provided with light guide plate 13 and reflector plate 8,
LED/light source 10 is located at the sidepiece of light guide plate 13, i.e. sidepiece entering light；LED is blue-ray LED or adds fluorescent material or other materials in the led
Other glow colors LED after material.
The utility model also provides a kind of preparation method of LED backlight/illumination panel, comprises the following steps：
A) by blue-ray LED or it is mixed with the LED of fluorescent material and is fixed on pcb board, forms LED light bar 11；
B) applied in barrier membrane material and be covered with protection materials or binding agent；
C) quanta point material is well mixed or is dissolved in related solvents with silica gel, in the membrane material comprising protection materials
Quantum dot is arranged in the form of certain array or figure coating by dispensing of ruling, spraying, transfer or the mode such as silk-screen printing,
Afterwards in certain temperature, protective atmosphere can be included, firing equipment on it is solidified or the complete solvent that volatilizees, repeat more than it is related
Operation forms one layer, two layers or multilayer luminescent layer；
D) applied on luminescent layer and be covered with protection materials or binding agent and cover barrier membrane material, form sandwich structure；
E) above sandwich structure quantum dot membrane material is combined plus diffusion sheet with reflector plate with LED light bar 11, and finally
Form white light backlight panel.
LED backlight/illumination panel that the present embodiment is provided can be prevented effectively from the phase between different wave length quanta point material
Mutually absorb, make what LED sent to excite luminous energy to be utilized effectively；It is shorter by widening the life-span when luminescent layer is sandwich construction
Short-wave band quantum dot and excitation source distance, can effectively reduce material due to caused by heated life time decay it is inconsistent,
Avoid using caused picture or light extraction color changing for a long time, on the basis of wide colour gamut is ensured, effectively lifting display
Or brightness and the colour rendering of illumination panel；In addition, by this kind of mode can be prevented effectively from due to a variety of different quanta point materials with
Go out to shield the problem of uniformity of chromaticity is not good caused by colloidal materials mixing is uneven.
Compared with single layer structure, the characteristics of luminescent layer is sandwich construction is as follows：
Sandwich construction is conducive to improving light extraction spectrum, realizes full spectrum light extraction, while being also prevented from occurring a variety of light
Material mixes uneven and storeroom with colloid and mutually absorbs caused photochromic lack of homogeneity, the low problem of product yield.
Preferred embodiment of the present utility model is these are only, the utility model is not limited to, for this area
Technical staff for, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle within,
Any modification, equivalent substitution and improvements made etc., should be included within protection domain of the present utility model.
Claims (8)
1. a kind of quantum dot membrane material structure, it is characterised in that the quantum dot membrane material structure is by outer layer protection material and intermediate quantity
Son point material composition, the middle quanta point material is one layer, two layers or multilayer, and each layer is wavelength of the same race or wavelength not of the same race
The array or figure of quanta point material.
2. quantum dot membrane material structure as claimed in claim 1, it is characterised in that：
The outer layer protection material can occur on random layer quanta point material surface, for being protected to the formation of each layer quanta point material
Effect, while may be such that luminous uniform through membrane material outgoing, the good area source of formation；The intermediate layer quanta point material can be by
Cd, In, P, Cu, S, C or one kind, two or more compositions in halogen.
3. quantum dot membrane material structure as claimed in claim 2, it is characterised in that：
The middle quanta point material that two layers or multilayer are stacked, it is longer that the shorter quantum dot of launch wavelength is typically in launch wavelength
Directly over quantum dot, or adjacent position just upper or underface.
4. quantum dot membrane material structure as claimed in claim 3, it is characterised in that：
The array or figure are realized by dispensing of ruling, spraying, transfer or silk-screen printing technique.
5. a kind of LED backlight/illumination panel, it is characterised in that：Including quantum dot membrane material structure and LED/light source, the LED/light source
Positioned at the bottom of the quantum dot membrane material structure or sidepiece, i.e., from bottom entering light or sidepiece entering light, the quantum dot membrane material structure
For the quantum dot membrane material structure any one of Claims 1-4.
6. LED backlight/illumination panel as claimed in claim 5, it is characterised in that：
The quanta point material of longer emission wavelength is located at close to the side of light source in the quantum dot membrane material structure.
7. LED backlight/illumination panel as claimed in claim 6, it is characterised in that：
The quantum dot membrane material structure is provided with diffusion sheet, and reflector plate is arranged below, and the LED/light source is located at the reflector plate
Above, backboard is arranged below in the reflector plate；The LED is blue-ray LED or added in the led after fluorescent material or other materials
Other glow colors LED；The LED is provided with the optical lens for being used for lifting light-emitting uniformity.
8. LED backlight/illumination panel as claimed in claim 7, it is characterised in that：
The quantum dot membrane material structure is provided with diffusion sheet, in turn below provided with light guide plate and reflector plate, the LED/light source position
In the light guide plate sidepiece, i.e. sidepiece entering light；The LED is blue-ray LED or added in the led after fluorescent material or other materials
Other glow colors LED.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621337931.1U CN206400222U (en) | 2016-12-08 | 2016-12-08 | A kind of quantum dot membrane material structure and LED backlight/illumination panel |
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| CN201621337931.1U CN206400222U (en) | 2016-12-08 | 2016-12-08 | A kind of quantum dot membrane material structure and LED backlight/illumination panel |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106483712A (en) * | 2016-12-08 | 2017-03-08 | 易美芯光（北京）科技有限公司 | A kind of quantum dot membrane material structure and its application |
| CN108490682A (en) * | 2018-02-24 | 2018-09-04 | 惠州市华星光电技术有限公司 | A kind of optical diaphragm, backlight module and display device |
| CN110989243A (en) * | 2019-12-19 | 2020-04-10 | 宁波长阳科技股份有限公司 | Composite film, preparation method and application thereof, and backlight module |
-
2016
- 2016-12-08 CN CN201621337931.1U patent/CN206400222U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106483712A (en) * | 2016-12-08 | 2017-03-08 | 易美芯光（北京）科技有限公司 | A kind of quantum dot membrane material structure and its application |
| CN108490682A (en) * | 2018-02-24 | 2018-09-04 | 惠州市华星光电技术有限公司 | A kind of optical diaphragm, backlight module and display device |
| WO2019161595A1 (en) * | 2018-02-24 | 2019-08-29 | 惠州市华星光电技术有限公司 | Optical film, backlight module, and display device |
| CN110989243A (en) * | 2019-12-19 | 2020-04-10 | 宁波长阳科技股份有限公司 | Composite film, preparation method and application thereof, and backlight module |
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