CN107275462A - LED, backlight module and liquid crystal display device - Google Patents
LED, backlight module and liquid crystal display device Download PDFInfo
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- CN107275462A CN107275462A CN201710492846.5A CN201710492846A CN107275462A CN 107275462 A CN107275462 A CN 107275462A CN 201710492846 A CN201710492846 A CN 201710492846A CN 107275462 A CN107275462 A CN 107275462A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/20—Light sources comprising attachment means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
- F21K9/64—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
- F21V19/0015—Fastening arrangements intended to retain light sources
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier 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 with at least one potential-jump barrier or surface barrier 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
- H01L33/501—Wavelength conversion elements characterised by the materials, e.g. binder
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier 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 with at least one potential-jump barrier or surface barrier 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
- H01L33/501—Wavelength conversion elements characterised by the materials, e.g. binder
- H01L33/502—Wavelength conversion materials
- H01L33/504—Elements with two or more wavelength conversion materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133614—Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light
Abstract
The present invention discloses a kind of LED, backlight module and liquid crystal display device, wherein, the LED includes support, blue chip and light conversion layer, the support has upwardly opening cavity, the blue chip is located in the cavity of the support, and installed in the bottom wall of the support, the light conversion layer is packaged in the cavity of the support, the light conversion layer includes red quantum dot, green quantum dot and barrier layer, and the barrier layer wraps up the red quantum dot and the green quantum dot is set.In the technical scheme that the present invention is provided, by way of making and being packaged with the LED of quantum dot, greatly reduction technology of quantum dots is applied to the cost of backlight display field.
Description
Technical field
The present invention relates to technical field of liquid crystal display, more particularly to a kind of LED, backlight module and liquid crystal display device.
Background technology
Quantum dot is adjustable due to its emission wavelength, can cover all visible light wave ranges of 380-780nm, and a new generation's amount
The characteristics of son point half-wave is wide narrower, technology of quantum dots is considered as the contenders of illumination of future generation and Display Technique.It is existing
Technology of quantum dots is applied to backlight display field, is realized by way of quantum dot to be fabricated to quantum film and quantum pipe
, it can effectively realize that the high colour gamut of back light system is shown using the advantage of quantum dot.But due to being fabricated to quantum film side
Formula is, it is necessary to using substantial amounts of quanta point material, realize that the cost of such a mode is higher, and be fabricated to quantum pipe mode, it is necessary to volume
Outer device is accommodated and positioned to quantum pipe, and there is the risk of disconnected pipe and fragmentation, therefore both mode cost all mistakes
Height, is not the best way that quantum dot is applied to backlight display field.
The content of the invention
The main object of the present invention is to propose a kind of LED and liquid crystal display device, it is intended to solved existing by quantum dot
Technology application is the problem of backlight display field cost is too high.
To achieve the above object, LED proposed by the present invention, including：
Support, with upwardly opening cavity；
Blue chip, in the cavity of the support, and installed in the bottom wall of the support；And,
In light conversion layer, the cavity for being packaged in the support, the light conversion layer includes red quantum dot, green quantum dot
And barrier layer, the barrier layer wraps up the red quantum dot and the green quantum dot is set.
Preferably, the outside parcel of each red quantum dot and the green quantum dot is provided with the barrier layer.
Preferably, the red quantum dot and the green quantum dot are set in upward and downward higher slice, to form amount of red
Son point layer and green quantum dot layer；
Parcel is provided with the barrier layer respectively for the periphery of the red quantum dot layer and green quantum dot layer.
Preferably, the green quantum dot and the mass ratio of the red quantum dot are more than 3:1.
Preferably, the blue chip includes extension luminescent layer, constitutes the material of the extension luminescent layer and includes InxGa1-
XN alloys and GaN, and the thickness of the extension luminescent layer is 1 μm to 15 μm, the peak wavelength of the blue chip arrives for 430nm
470nm。
Preferably, a diameter of 2nm to 4nm of the green quantum dot, the green peak that the green quantum dot is excited
Wavelength is 520nm to 550nm；And/or,
A diameter of 8nm to 10nm of the red quantum dot, the red light peak wavelength that the red quantum dot is excited is
630nm to 670nm.
Preferably, the material of the red quantum dot and green quantum dot be GaN, GaP, GaAs, InN, InP, InAs,
CdSe、CdTe、MgS、MgSe、MgTe、CaS、CaSe、CaTe、SrS、SrSe、SrTe、BaS、BaSe、BaTe、ZnS、ZnSe、
At least one of ZnTe, CdS, CH3NH3PbX3 (X=Cl, Br, I) and CsPbX3 (X=Cl, Br, I).
Preferably, the material of the barrier layer is SiO2、TiO2、Al2O3、CaCO3、BaSO4, polymethyl methacrylate
PMMA, polystyrene PS, alkene nitrile-BS ABS, polyurethane PU and organosilicon polymer at least one.
The present invention also provides a kind of backlight module, including LED, and the LED includes：
Support, with upwardly opening cavity；
Blue chip, in the cavity of the support, and installed in the bottom wall of the support；And,
In light conversion layer, the cavity for being packaged in the support, the light conversion layer includes red quantum dot, green quantum dot
And barrier layer, the barrier layer wraps up the red quantum dot and the green quantum dot is set.
The present invention also provides a kind of liquid crystal display device, including backlight module, and the backlight module includes LED, the LED
Including：
Support, with upwardly opening cavity；
Blue chip, in the cavity of the support, and installed in the bottom wall of the support；And,
In light conversion layer, the cavity for being packaged in the support, the light conversion layer includes red quantum dot, green quantum dot
And barrier layer, the barrier layer wraps up the red quantum dot and the green quantum dot is set.
In the technical scheme that the present invention is provided, the LED includes support and the blue chip in support, by inciting somebody to action
Red quantum dot and green quantum dot are packaged in the support, form light conversion layer, finally give the LED emitted white light luminous single
Member, and the red quantum dot and the green quantum dot are wrapped up provided with barrier layer, it is to avoid outside oxygen and water are to described red
The performance of color quantum dot and the green quantum dot is impacted, relative to prior art, by way of making the LED,
Greatly reduction technology of quantum dots is applied to the cost of backlight display field.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Structure according to these accompanying drawings obtains other accompanying drawings.
The structural representation of the embodiment for the LED that Fig. 1 provides for the present invention；
The structural representation of another embodiment for the LED that Fig. 2 provides for the present invention；
Fig. 3 is the transmitance with a kind of liquid-crystalline glasses that LED collocation is used in Fig. 1；
Fig. 4 is LED in Fig. 1 by the spectrum obtained by the liquid-crystalline glasses in optical film and Fig. 3；
The structural representation of one embodiment of the backlight module that Fig. 5 present invention is provided；
The structural representation of another embodiment for the backlight module that Fig. 6 present invention is provided.
Drawing reference numeral explanation：
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art obtained under the premise of creative work is not made it is all its
His embodiment, belongs to the scope of protection of the invention.
If it is to be appreciated that related in the embodiment of the present invention directionality indicate (such as up, down, left, right, before and after ...),
Then directionality indicate to be only used for explain relative position relation under a certain particular pose (as shown in drawings) between each part,
Motion conditions etc., if the particular pose changes, directionality indicates also correspondingly therewith to change.
If in addition, relating to the description of " first ", " second " etc. in the embodiment of the present invention, being somebody's turn to do " first ", " second " etc.
Description be only used for describing purpose, and it is not intended that indicating or implying its relative importance or implicit indicate indicated skill
The quantity of art feature.Thus, " first " is defined, at least one spy can be expressed or be implicitly included to the feature of " second "
Levy.In addition, the technical scheme between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
Based on enough realizations, when the combination appearance of technical scheme is conflicting or can not realize it will be understood that the knot of this technical scheme
Conjunction is not present, also not within the protection domain of application claims.
The present invention proposes a kind of liquid crystal display device, including backlight module, and the backlight module includes LED, and Fig. 1 is this hair
The LED of a bright offer embodiment.
Referring to Fig. 1, the LED100 includes support 1, blue chip 2 and light conversion layer, the support 1 has upward
The cavity of opening, the blue chip 2 is located in the cavity of the support 1, and installed in the bottom wall of the support 1, the light
Conversion layer is packaged in the cavity of the support 1, and the light conversion layer includes red quantum dot 3, green quantum dot 4 and barrier layer
5, the barrier layer 5 wraps up the red quantum dot 3 and the green quantum dot 4 is set.It should be noted that using herein
Be the blue chip 2 and the LED100 is made in the red green quantum dot encapsulation, naturally it is also possible to, using blue chip and
Red light chips are arranged in support and encapsulated with green quantum dot, or blue chip and green glow chip be arranged on support it is interior with it is red
Color quantum dot is encapsulated.
In the technical scheme that the present invention is provided, the LED100 includes support 1 and the blue light core in the support 1
Piece 2, by the way that red quantum dot 3 and green quantum dot 4 are packaged in the support 1, form light conversion layer, finally gives and turn white
The LED100 luminescence units of light, and wrap up the red quantum dot 3 and the green quantum dot 4 provided with barrier layer 5, it is to avoid
Outside oxygen and water is impacted to the performance of the red quantum dot 3 and the green quantum dot 4, relative to existing skill
Art, by way of making the LED100, greatly reduction technology of quantum dots is applied to the cost of backlight display field.
Because the red quantum dot 3 and the green quantum dot 4 are more sensitive to oxygen and water, if directly with oxygen and water
If contact, the performance of the red quantum dot 3 and the green quantum dot 4 can be influenceed, therefore the barrier layer 5 need to be set, will
The red quantum dot 3 and the green quantum dot 4 are isolated from the outside out, referring to Fig. 1, in the present embodiment, being will be described
Red quantum dot 3 and the hybrid package of green quantum dot 4 are in the support 1, and each red quantum dot 3 and described
The outside parcel of green quantum dot 4 is provided with the barrier layer 5, wraps up the red quantum dot 31 of barrier layer and wraps up barrier layer
The green encapsulation of quantum dot 41 forms the light conversion layer.
This mode of the barrier layer 5 is wrapped up in the outside of each red quantum dot 3 and the green quantum dot 4,
In actual production, do not ensure that each red quantum dot 3 and the green quantum dot 4 can be by the barrier layers 5
Wrapped up, in order to completely by red quantum dot 3 and the green quantum dot 4 and extraneous oxygen and water segregation, referring to Fig. 2,
In another embodiment for the LED100 that the present invention is provided, the red quantum dot 3 and the green quantum dot 4 divide on upward and downward
Layer is set, to form red quantum dot layer and green quantum dot layer, in this way, being also avoided that the red quantum dot 3 and described green
Influence is mutually produced between color quantum dot 4, the bottom of the support 1 (including described blue chip 2) and inwall are all enclosed with
The barrier layer 5, forms accommodating chamber, the green quantum dot 4 is encapsulated in the bottom of the accommodating chamber, to form the amount of green color
Son point layer, the green quantum dot layer upper surface parcel is provided with the barrier layer 5, is then followed by encapsulating the red quantum dot 3,
To form the red quantum dot layer, the last red quantum dot layer upper surface parcel is provided with the barrier layer 5, to be formed
LED100 is stated, in the present embodiment, upper strata is red quantum dot layer, and lower floor is the green quantum dot layer, also may be used certainly
To be, lower floor is red quantum dot layer, and upper strata is the green quantum dot layer.
Excite the red quantum dot 3 and the green quantum dot 4 luminous to allow the blue chip 2 to be easier, and
For the consideration protected to human eyesight, in the present embodiment, the blue chip 2 includes extension luminescent layer, constitutes described outer
Delaying the material of photosphere includes InxGa1-xN alloys and GaN, and the thickness of the extension luminescent layer is 1 μm to 15 μm, the indigo plant
The peak wavelength of optical chip 2 is 430nm to 470nm.
In order to obtain the visible light wave range of the final needs, in the present embodiment, the green quantum dot 4 it is a diameter of
2nm to 4nm, the green light peak wavelength that the green quantum dot 4 is excited is 520nm to 550nm and/or the red quantum dot
3 a diameter of 8nm to 10nm, the red light peak wavelength that the red quantum dot 3 is excited is 630nm to 670nm.
The factors such as the red quantum dot 3 and the cost and stability of green quantum dot 4 that consider, in the present embodiment
In, the material of the red quantum dot 3 and green quantum dot 4 is GaN, GaP, GaAs, InN, InP, InAs, CdSe, CdTe,
MgS、MgSe、MgTe、CaS、CaSe、CaTe、SrS、SrSe、SrTe、BaS、BaSe、BaTe、ZnS、ZnSe、ZnTe、CdS、
At least one of CH3NH3PbX3 (X=Cl, Br, I) and CsPbX3 (X=Cl, Br, I).
The LED100 has selected the blue chip 2, to excite the red quantum dot 3 and the green quantum dot 4
Luminous, what is finally obtained is white light, in order to be easier to obtain white light, and it is purer to obtain white light, the green quantum dot 4 with
The mass ratio of the red quantum dot 3 is more than 3:1.
Specifically, one implement in, from the quantum dot of two kinds of colors of CdSe materials, the green quantum dot 4 it is straight
Footpath is 4nm, a diameter of 9nm of the red quantum dot 3, and the green quantum dot 4 and the ratio of the red quantum dot 3 are 3:
1~4:In the case of 1, it is packaged with peak wavelength for the 448nm blue chip 2 and the LED100 is made, described
After blue chip 2 is excited, obtained green glow dominant wavelength is in 535nm, and feux rouges dominant wavelength is in 634nm.The Led100 is passing through light
After the liquid-crystalline glasses for learning diaphragm and transmitance as shown in Figure 3, spectrum as shown in Figure 4 is finally given, its white field color point coordinates
For 0.274/0.2765, and the final display effect for achieving over 102%NTSC colour gamuts.
In view of the barrier property of the barrier layer 5, and to the red quantum dot 3 and the performance of green quantum dot 4 not
It can impact, in the present embodiment, the material of the barrier layer 5 is SiO2、TiO2、Al2O3、CaCO3、BaSO4, poly- methyl-prop
E pioic acid methyl ester PMMA, polystyrene PS, alkene nitrile-BS ABS, polyurethane PU and organosilicon polymer
It is at least one.
Usually, multiple LED100 are the backlights for applying to the liquid crystal display device in the way of making lamp bar
In module, Fig. 5 is referred in an embodiment of the backlight module that the present invention is provided, and the backlight module 200 is side entering type
Backlight module, the backlight module 200 includes reflector plate 300, light guide plate 400 and diaphragm group 500, and the light guide plate 400 is set
On the upside of the reflector plate 300, multiple LED100 (a row or multi-row) incident sides located at the light guide plate 400 in a row,
The diaphragm group 500 is located at the upside of light guide plate 400, and the diaphragm group 500 includes diffusion sheet, blast piece, DBEF and is combined
At least one of film.
The mode that the LED100 applies in the backlight module 200 be not limited to above-described embodiment or, please
Refering to Fig. 6 in another embodiment for the backlight module that the present invention is provided, the backlight module 200 is down straight aphototropism mode set,
The backlight module 200 includes reflection subassembly 600 and diaphragm group 500, and the reflection subassembly 600 includes the He of principal reflection piece 610
The auxiliary reflector plate 620 set around the principal reflection piece 610, so that reflection subassembly 600 forms upwardly opening accommodating chamber, it is many
The individual LED100 is in a row (a row or multi-row) in the accommodating chamber, and on the principal reflection piece 610, the diaphragm
Group 500 is on the upside of the reflection subassembly, and the diaphragm group 500 includes diffuser plate, diffusion sheet, blast piece, DBEF and composite membrane
At least one of.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the scope of the invention, it is every at this
Under the inventive concept of invention, the equivalent structure transformation made using description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical fields in the scope of patent protection of the present invention.
Claims (10)
1. a kind of LED, it is characterised in that including：
Support, with upwardly opening cavity；
Blue chip, in the cavity of the support, and installed in the bottom wall of the support；And,
In light conversion layer, the cavity for being packaged in the support, the light conversion layer includes red quantum dot, green quantum dot and resistance
Interlayer, the barrier layer wraps up the red quantum dot and the green quantum dot is set.
2. LED as claimed in claim 1, it is characterised in that each red quantum dot and the green quantum dot it is outer
Side parcel is provided with the barrier layer.
3. LED as claimed in claim 1, it is characterised in that the red quantum dot and the green quantum dot are in upward and downward
Higher slice is set, to form red quantum dot layer and green quantum dot layer；
Parcel is provided with the barrier layer respectively for the periphery of the red quantum dot layer and green quantum dot layer.
4. LED as claimed in claim 1, it is characterised in that the green quantum dot and the mass ratio of the red quantum dot
More than 3:1.
5. LED as claimed in claim 1, it is characterised in that the blue chip includes extension luminescent layer, constitutes the extension
The material of luminescent layer includes InxGa1-xN alloys and GaN, and the thickness of the extension luminescent layer is 1 μm to 15 μm, the blue light
The peak wavelength of chip is 430nm to 470nm.
6. LED as claimed in claim 1, it is characterised in that a diameter of 2nm to 4nm of the green quantum dot, the green
The green light peak wavelength that quantum dot is excited is 520nm to 550nm；And/or,
A diameter of 8nm to 10nm of the red quantum dot, the red light peak wavelength that the red quantum dot is excited is 630nm
To 670nm.
7. LED as claimed in claim 1, it is characterised in that the material of the red quantum dot and green quantum dot is GaN,
GaP、GaAs、InN、InP、InAs、CdSe、CdTe、MgS、MgSe、MgTe、CaS、CaSe、CaTe、SrS、SrSe、SrTe、
In BaS, BaSe, BaTe, ZnS, ZnSe, ZnTe, CdS, CH3NH3PbX3 (X=Cl, Br, I) and CsPbX3 (X=Cl, Br, I)
At least one.
8. LED as claimed in claim 1, it is characterised in that the material of the barrier layer is SiO2、TiO2、Al2O3、CaCO3、
BaSO4, polymetylmethacrylate, polystyrene PS, alkene nitrile-BS ABS, polyurethane PU and
At least one of organosilicon polymer.
9. a kind of backlight module, it is characterised in that including the LED as described in claim 1 to 8 any one.
10. a kind of liquid crystal display device, it is characterised in that including backlight module as claimed in claim 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710492846.5A CN107275462A (en) | 2017-06-23 | 2017-06-23 | LED, backlight module and liquid crystal display device |
| PCT/CN2017/112044 WO2018233199A1 (en) | 2017-06-23 | 2017-11-21 | Led, backlight module, and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710492846.5A CN107275462A (en) | 2017-06-23 | 2017-06-23 | LED, backlight module and liquid crystal display device |
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| Publication Number | Publication Date |
|---|---|
| CN107275462A true CN107275462A (en) | 2017-10-20 |
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ID=60068300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710492846.5A Pending CN107275462A (en) | 2017-06-23 | 2017-06-23 | LED, backlight module and liquid crystal display device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107275462A (en) |
| WO (1) | WO2018233199A1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018192208A1 (en) * | 2017-04-19 | 2018-10-25 | 深圳Tcl新技术有限公司 | Led light source, light bar and display device |
| WO2018233199A1 (en) * | 2017-06-23 | 2018-12-27 | 深圳Tcl新技术有限公司 | Led, backlight module, and liquid crystal display device |
| WO2019080536A1 (en) * | 2017-10-24 | 2019-05-02 | 华为技术有限公司 | Backlight module, display screen and terminal |
| CN110783360A (en) * | 2018-07-31 | 2020-02-11 | 深圳Tcl新技术有限公司 | Quantum dot three-color LED display screen and preparation method thereof |
| CN112103380A (en) * | 2020-06-24 | 2020-12-18 | 佛山市国星光电股份有限公司 | Quantum dot light-emitting device and manufacturing method thereof |
| CN113805377A (en) * | 2020-06-11 | 2021-12-17 | 拓米(成都)应用技术研究院有限公司 | Color-changing film and preparation method for improving optical characteristics thereof |
| CN114005922A (en) * | 2021-10-09 | 2022-02-01 | 惠州视维新技术有限公司 | Quantum dot light-emitting system and display device |
| CN114284399A (en) * | 2021-11-24 | 2022-04-05 | 利亚德光电股份有限公司 | Processing method of LED display module |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633551A (en) * | 2015-03-03 | 2015-05-20 | 深圳市华星光电技术有限公司 | White LED, backlight module and liquid crystal display device |
| CN106383420A (en) * | 2016-08-31 | 2017-02-08 | 张家港康得新光电材料有限公司 | Quantum dot luminous device and backlight module |
| CN106816520A (en) * | 2015-11-30 | 2017-06-09 | 隆达电子股份有限公司 | Wavelength conversion material and application thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487857A (en) * | 2013-10-11 | 2014-01-01 | 张家港康得新光电材料有限公司 | Quantum dot film and backlight module |
| CN105911766A (en) * | 2016-06-16 | 2016-08-31 | 青岛海信电器股份有限公司 | Quantum dot light-emitting device, backlight module and liquid crystal display device |
| CN107275462A (en) * | 2017-06-23 | 2017-10-20 | 深圳Tcl新技术有限公司 | LED, backlight module and liquid crystal display device |
-
2017
- 2017-06-23 CN CN201710492846.5A patent/CN107275462A/en active Pending
- 2017-11-21 WO PCT/CN2017/112044 patent/WO2018233199A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633551A (en) * | 2015-03-03 | 2015-05-20 | 深圳市华星光电技术有限公司 | White LED, backlight module and liquid crystal display device |
| CN106816520A (en) * | 2015-11-30 | 2017-06-09 | 隆达电子股份有限公司 | Wavelength conversion material and application thereof |
| CN106383420A (en) * | 2016-08-31 | 2017-02-08 | 张家港康得新光电材料有限公司 | Quantum dot luminous device and backlight module |
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| WO2018192208A1 (en) * | 2017-04-19 | 2018-10-25 | 深圳Tcl新技术有限公司 | Led light source, light bar and display device |
| WO2018233199A1 (en) * | 2017-06-23 | 2018-12-27 | 深圳Tcl新技术有限公司 | Led, backlight module, and liquid crystal display device |
| WO2019080536A1 (en) * | 2017-10-24 | 2019-05-02 | 华为技术有限公司 | Backlight module, display screen and terminal |
| US10901263B2 (en) | 2017-10-24 | 2021-01-26 | Huawei Technologies Co., Ltd. | Backlight module, display screen, and terminal |
| CN110783360A (en) * | 2018-07-31 | 2020-02-11 | 深圳Tcl新技术有限公司 | Quantum dot three-color LED display screen and preparation method thereof |
| CN113805377A (en) * | 2020-06-11 | 2021-12-17 | 拓米(成都)应用技术研究院有限公司 | Color-changing film and preparation method for improving optical characteristics thereof |
| CN112103380A (en) * | 2020-06-24 | 2020-12-18 | 佛山市国星光电股份有限公司 | Quantum dot light-emitting device and manufacturing method thereof |
| CN112103380B (en) * | 2020-06-24 | 2022-03-18 | 佛山市国星光电股份有限公司 | Quantum dot light-emitting device and manufacturing method thereof |
| CN114005922A (en) * | 2021-10-09 | 2022-02-01 | 惠州视维新技术有限公司 | Quantum dot light-emitting system and display device |
| CN114284399A (en) * | 2021-11-24 | 2022-04-05 | 利亚德光电股份有限公司 | Processing method of LED display module |
| CN114284399B (en) * | 2021-11-24 | 2023-11-10 | 利亚德光电股份有限公司 | Processing method of LED display module |
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Application publication date: 20171020 |