CN110501842A - A kind of backlight module and display device - Google Patents
A kind of backlight module and display device Download PDFInfo
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- CN110501842A CN110501842A CN201810482083.0A CN201810482083A CN110501842A CN 110501842 A CN110501842 A CN 110501842A CN 201810482083 A CN201810482083 A CN 201810482083A CN 110501842 A CN110501842 A CN 110501842A
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Classifications
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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
-
- 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
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- 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
- G02F1/133609—Direct backlight including means for improving the color mixing, e.g. white
-
- 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
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention discloses a kind of backlight module and display devices, including backboard, several light sources being arranged on backboard and the optical diaphragm group that light source light emission side is arranged in, each light source includes three LED being triangularly arranged, and red quantum dot, green quantum dot and blue quantum dot are disposed on three LED in each light source.The present invention also provides a kind of display devices with above-mentioned backlight module.Backlight module and display device of the invention, increase red, green, blue quantum dot in light source, and excite the quantum dot of these three colors to issue feux rouges, green light and blue light by LED, final light mixing and the white light for obtaining high colour gamut, the colour gamut of more existing white light source are higher.
Description
Technical field
The present invention relates to display backlight source domain more particularly to a kind of backlight module that high colour gamut backlight can be achieved and show
Showing device.
Background technique
In display backlight source domain, there are mainly two types of modes for backlight of LCD: one kind is using CCFL or LED
Cooperate the side entering type of light guide plate；Another kind is the straight-down negative that LED cooperates secondary optical lens.
Index of the colour gamut as one measurement liquid crystal display color representation ability of backlight source domain, increasingly by people
Concern.Since CCFL and LED is limited by luminescent spectrum range, gamut range has certain limitation.CCFL or LED at present
The gamut range of backlight can not reach higher colour gamut requirement substantially between 68%-72%.
Existing side entering type CCFL backlight is unable to reach higher colour gamut and is wanted due to the limitation of its luminescent spectrum range
It asks.Straight-down negative or side entering type LED backlight mostly use blue chip to excite yellow fluorescent powder, and luminescent spectrum is limited in scope, nothing
Method reaches the requirement of higher color domain, while being difficult because lacking red light portion with high-color rendering.And straight-down negative or side entering type LED,
It mostly uses blue chip excitation yellow fluorescent powder to generate white light, since the area and fluorescent powder area of blue chip are inconsistent, causes
Keep light mixing uneven, is more prone to produce colour circle after fit lens.
A kind of crystal structure semiconductor of the quantum dot as luminescence generated by light, luminescent color determine by its size, can overcome with
The limitation of the luminescent spectrum range of upper two kinds of light sources improves colour gamut.Backlight colour gamut is promoted using quantum dot fluorescent powder at present
Method mainly has: one, in side-edge type backlight, quantum dot being coated on chip, replaces traditional blue chip or close purple
The luminous mode (on-chip) of outer chip excitated fluorescent powder；Two, in side-edge type backlight, quantum dot is coated on light guide plate
Side excites it to shine and generates white light (on-edge) with blue-ray LED；Three, in side-edge type backlight, quantum dot is coated on
Backlight membrane material upper surface (on-film).
Quantum dot fluorescence powder can promote colour gamut as one kind, improve the aobvious embedded photoluminescent material referred to, can also be applied to illuminate
Field.Quantum dot fluorescence powder applied to lighting area.There are following methods: one, quantum dot fluorescence powder being coated on chip
On, it is packaged into LED, the mode for replacing traditional blue chip or near ultraviolet chip excitated fluorescent powder luminous；Two, quantum dot is glimmering
Light powder is coated on optical lens outer surface.
Although above-mentioned light emitting device can promote colour gamut, previous use with quantum dot fluorescent powder to a certain extent
Quantum dot fluorescence powder is coated on light guide plate or diffusion membrane material table by the straight-down negative or side-edge type backlight of quantum dot fluorescence powder
Face causes quantum dot directly with air catalytic oxidation, thus can reduce the using effect of quantum dot fluorescent powder.
Therefore, the existing technology needs to be improved and developed.
Summary of the invention
Place in view of above-mentioned deficiencies of the prior art, the present invention are to solve prior art defect and deficiency, propose one kind
Backlight module can effectively promote the colour gamut of backlight module.
A kind of backlight module, including backboard, several light sources being arranged on backboard and the light that light source light emission side is arranged in
Diaphragm group is learned, each light source includes three LED being triangularly arranged, and on three LED in each light source
It is disposed with red quantum dot, green quantum dot and blue quantum dot.
Wherein, each LED includes the sealing lens of LED chip and the sealing LED chip, the red quantum
Point or green quantum dot or blue quantum dot are arranged on the sealing lens.
Wherein, each LED includes LED chip, seals the sealing lens of the LED chip and be located at described close
It seals the optical lens on the outside of lens, the red quantum dot or green quantum dot or blue quantum dot is arranged in the sealing lens
And/or on the optical lens.
Wherein, the red quantum dot or green quantum dot or blue quantum dot uniformly throughout the entire sealing lens or
The optical lens setting.
Wherein, the sealing lens and optical lens for three LED being triangularly arranged in each light source include mutually leaning on
The area Jin Ban and halfth area mutually deviated from, the red quantum dot or green quantum dot or blue quantum dot are uniformly arranged on described
In sealing lens halfth area close to each other or it is arranged in the optical lens halfth area close to each other.
Wherein, described seal is provided with white quantum dot in halfth area mutually deviated from lens or the optical lens.
Wherein, the sealing lens and/or the optical lens are symmetrical solid construction or hollow structure, and table
Face is spherical surface or n times curved surface.
Wherein, the inner surface and/or outer surface of the sealing lens and/or the optical lens are provided with micro-structure.
Wherein, the LED is blue light high frequency LED or purple light high frequency LED.
The present invention also provides a kind of display devices, with above-mentioned backlight module.
Compared with prior art, backlight module of the invention and display device, in light source the sealing lens of LED and/
Or increase red, green, blue quantum dot on optical lens, and by LED excite these three colors quantum dot issue it is red
Light, green light and blue light, final light mixing and the white light for obtaining high colour gamut, the colour gamut of more existing white light source are higher.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of backlight module preferred embodiment of the present invention.
Fig. 2 is the structural schematic diagram of light source in backlight module shown in Fig. 1.
Fig. 3 is the schematic diagram that quantum dot is arranged on the LED of light source shown in Fig. 2.
Fig. 4 is another schematic diagram that quantum dot is arranged on the LED of light source shown in Fig. 2.
Specific embodiment
Below in conjunction with the attached drawing in embodiment of the present invention, the technical solution in embodiment of the present invention is carried out clear
Chu is fully described by.Obviously, described embodiment is a part of embodiment of the invention, rather than whole embodiment party
Formula.Based on the embodiment in the present invention, those of ordinary skill in the art are obtained without making creative work
The every other embodiment obtained, all should belong to the scope of protection of the invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, is also possible to detachably connected, or integrally connects
It connects；It can be mechanical connection；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The connection in portion.For the ordinary skill in the art, the tool of above-mentioned term in the present invention can be understood with concrete condition
Body meaning.
In addition, in the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more.If this
Occur the term of " process " in specification, refers not only to independent process, when can not clearly be distinguished with other process, as long as
Effect desired by the process is able to achieve then to be also included in this term.In addition, the numerical value model indicated in this specification with " ~ "
Enclose the range for referring to that the numerical value for recording " ~ " front and back is included as minimum value and maximum value.In the accompanying drawings, structure phase
Seemingly or identical unit is indicated by the same numeral.
The embodiment of the invention provides a kind of backlight modules, and the quantum of three kinds of colors of red, green, blue is arranged on light source
Then point is mixed into white light by three coloured light that the LED in light source excites the quantum dot of these three colors to be issued, promoted
The colour gamut of backlight module.
Referring to Fig. 1, Fig. 1 is the structural schematic diagram of the backlight module 100 of the present embodiment.In embodiments of the present invention, should
Backlight module 100 includes backboard 10, several light sources 30 being arranged on backboard 10 and the optics that 30 light emission side of light source is arranged in
Diaphragm group 50, wherein each light source 30 includes three LED31 being triangularly arranged, and each light source 30
Red quantum dot, green quantum dot and blue quantum dot are disposed on three interior LED31.
In backlight module of the invention, three LED31 form a light source 30, and are respectively set on three LED31 red
Color quantum dot, green quantum dot and blue quantum dot, so as to excite the quantum dot of these three colors and corresponding to issue red by LED31
The light of light, green light and blue light, these three colors is mixed to form white light.The more existing white light light of white light formed by this kind of mode
The colour gamut in source is higher.
Referring to Figure 2 together, Fig. 2 is the structural schematic diagram of light source in backlight module shown in Fig. 1.In embodiment of the present invention
In, each LED31 includes the sealing lens 313 of LED chip 311 and the sealing LED chip 311, the amount of red
Son point or green quantum dot or blue quantum dot are arranged on the sealing lens 313.
It is the schematic diagram that quantum dot is set on the LED of light source shown in Fig. 2 also referring to Fig. 3, Fig. 3.In this embodiment party
In formula, red quantum dot or green quantum dot or blue quantum dot are set gradually on the sealing lens 313 of three LED31, so that
The LED chip 311 of three LED31 excites the red quantum dot or green quantum dot or blue quantum dot respectively and issues red
Light, green light and blue light, can light mixing and form the white light of high colour gamut.
In the present embodiment, the LED chip 311 is rectangular sheet, and the sealing lens 313 are arc-shaped hollow
Perhaps the high transparent material such as solid construction and use epoxy resin or silica gel is made structure.It is understood that the sealing
Lens 313 can be outside aforementioned arc-shaped symmetrical structure, can also be other shapes of symmetrical structure or unsymmetric structure,
And the parameters such as its radius size can adjust according to designed light emitting angle and actual needs, here, not to described close
The parameters such as material, shape, the size of lens 313 are sealed to be specifically limited.
In an embodiment of the present invention, the LED31 further includes the optical lens for being located at 313 outside of sealing lens
Mirror 315, the red quantum dot or green quantum dot or blue quantum dot are arranged on the optical lens.
In the present embodiment, the optical lens 315 is the hollow structure or solid construction of M font, and uses ring
The high transparent material such as oxygen resin or silica gel is made.It is understood that the optical lens 315 can be aforementioned M font
Outside symmetrical structure, other shapes of symmetrical structure or unsymmetric structure can also be, and the parameters such as its radius size can be with
It is adjusted according to designed light emitting angle and actual needs, here, not to material, shape, the size of the optical lens 315
Etc. parameters be specifically limited.
In another embodiment of the present invention, the red quantum dot or green quantum dot or blue quantum dot can also be same
When setting on the sealing lens 313 and optical lens 315.
Referring once again to Fig. 3.In an embodiment of the present invention, the red quantum dot, green quantum dot or blue
Quantum dot is uniformly spread on entire sealing lens 313 and/or optical lens 315, so that corresponding LED chip 311 issued
Luminous energy inspires feux rouges, green light or blue light by the sealing lens 313 and/or optical lens 315, so that individually
LED31 issues pure feux rouges, green light or blue light, can be mixed to form the white light of high colour gamut.
Referring to Figure 4 together, Fig. 4 is another schematic diagram that quantum dot is arranged on the LED31 of light source 30 shown in Fig. 2.In
In present embodiment, the red quantum dot, green quantum dot or blue quantum dot are not throughout entire sealing lens 313
And/or optical lens 315 is arranged, and be provided only on halfth area of the sealing lens 313 and/or optical lens 315, i.e., only
The half region of the sealing lens 313 and/or optical lens 315 is set, and white quantum dot is arranged in the other half area.
Specifically, the sealing lens 313 and optical lens 315 of three LED31 being triangularly arranged in each light source 30
Halfth area for including halfth area close to each other and mutually deviating from, the red quantum dot or green quantum dot or blue quantum dot are equal
It is even to be arranged in the sealing lens 313 halfth area close to each other, and/or person's setting is close to each other in the optical lens 313
Halfth area on so that the adjacent region of the sealing lens 313 and/or optical lens 315 of three LED31 is provided with quantum dot, really
While guarantor can blend the white light of high colour gamut, the dosage of quantum dot can be reduced.
In another embodiment of the present invention, half Qu Shangshe for sealing lens 313 or optical lens 315 and mutually deviating from
Set white quantum dot.It is designed by this kind, the light that three LED31 of same light source 30 are issued to direction close to each other, excitation
White light is mixed into after quantum dot in halfth area close to each other of the sealing lens 313 and/or optical lens 315；LED31
The light issued to mutual departing direction will excite halfth area of the sealing lens 313 or optical lens 315 mutually deviated from
On white quantum dot generate white light, enable the LED31 issue it is inside and outside uniformly and the higher white light of colour gamut.
In an embodiment of the present invention, the inner surface of the sealing lens 313 or outer surface are provided with micro-structure (figure
Do not show).By increasing micro-structure on the sealing lens 313, the scattering of light is effectively increased, to increase each LED31's
Light emitting angle.
In an embodiment of the present invention, the inner surface of the optical lens 315 or outer surface are provided with micro-structure (figure
Do not show).By increasing micro-structure on the optical lens 315, the scattering of light is effectively increased, to increase each LED31's
Light emitting angle.
In an embodiment of the present invention, the LED chip 311 in the LED31 is blue light high frequency LED or purple light high frequency
LED。
In an embodiment of the present invention, the quantum dot is a kind of novel hydridization perovskite quanta point material, in
Core is by R1NH3AB3Or (R2NH3)2AB4It is formed.Wherein, R1For methyl, R2For organic molecule group, A be selected from Ge, Sn,
At least one of Pb, Sb, Bi, Cu or Mn, B are selected from least one of Cl, Br and I；A and B constitutes coordination octahedral structure；
R1NH3Or R2NH3It is filled in the gap of coordination octahedral structure, surface ligand is organic acid or organic amine.With it is existing inorganic
Quanta point material is compared, and this hybridized quantum dot material quantum yield is very high, and half-peak breadth is narrower, and the excitation purity that shines is higher.
The advantages of combining organic and inorganic materials due to hybrid inorganic-organic perovskite material again not only has inorganic component good
Thermal stability, mechanical performance and electromagnetic property, and have organic component easy processing film forming the advantages that, preparation process side
Face is relatively easy.Therefore, perovskite quanta point material is applied to have greater advantage in backlight by the present invention, can not only realize height
Colour gamut can also substantially reduce backlight cost.
In another embodiment of the present invention, the quanta point material can also be that inorganic perovskite and inorganic-organic are miscellaneous
Change perovskite material.Wherein, the chemical formula of inorganic perovskite is CsPbX3 (x=Cl/Br/I), hybrid inorganic-organic perovskite material
The chemical formula of material is CH3NH3PbX3(x=Cl/Br/I), CH3NH3PbX3(x=Cl/Br/I).
In an embodiment of the present invention, the backlight module 100 further includes reflector plate (not shown), and the reflector plate is set
It sets in 10 inside of backboard, positioned at the lower section of light source 30.By the setting of the reflector plate, emit the light source 30 downward
Light can by reflection utilize, to increase the light utilization efficiency of the backlight module 100.
In an embodiment of the present invention, the backlight module 100 further includes diffuser plate 70, and the setting of diffuser plate 70 exists
The light direction of the light source 30, the lower section of optical diaphragm group 50 make to increase the diffusion effect for the light that light source 30 issues
It is more uniform that entire backlight module 100 goes out light.
The present invention also provides a kind of display devices, with above-mentioned backlight module.
Backlight module and display device of the invention, the sealing lens 313 and/or optical lens of LED31 in light source 30
Increase red, green, blue quantum dot on 315, and by LED chip 311 excite these three colors quantum dot issue it is red
Light, green light and blue light, final light mixing and the white light for obtaining high colour gamut, the colour gamut of more existing white light source are higher.
It should be understood that the foregoing is merely illustrative of the preferred embodiments of the present invention, it is not sufficient to limit of the invention
Technical solution within the spirit and principles in the present invention, can add according to the above description for those of ordinary skills
With increase and decrease, replacement, transformation or improvement, and all these increases and decreases, replacement, transformation or improved technical solution, it all should belong to this
The protection scope of invention appended claims.
Claims (10)
1. including backboard, several light sources being arranged on backboard and the light source light emission side is arranged in a kind of backlight module
Optical diaphragm group, which is characterized in that each light source includes three LED being triangularly arranged, and each light source
Red quantum dot, green quantum dot and blue quantum dot are disposed on three interior LED.
2. backlight module according to claim 1, which is characterized in that each LED includes LED chip and sealing institute
It states the sealing lens of LED chip, the red quantum dot or green quantum dot or blue quantum dot is arranged in the sealing lens
On.
3. backlight module according to claim 1, it is characterised in that: each LED includes LED chip, described in sealing
The sealing lens of LED chip and the optical lens being located on the outside of the sealing lens, the red quantum dot or green amount
Son point or blue quantum dot are arranged on the sealing lens and/or the optical lens.
4. backlight module according to claim 2 or 3, which is characterized in that the red quantum dot or green quantum dot or
Blue quantum dot is uniformly throughout the entire sealing lens or optical lens setting.
5. backlight module according to claim 2 or 3, which is characterized in that three to be triangularly arranged in each light source
The sealing lens and optical lens of LED include halfth area close to each other and halfth area mutually deviated from, the red quantum dot or
Green quantum dot or blue quantum dot are uniformly arranged in the sealing lens halfth area close to each other or are arranged in the light
It learns in lens halfth area close to each other.
6. backlight module according to claim 5, which is characterized in that on the sealing lens or the optical lens mutually
White quantum dot is provided in halfth area deviated from.
7. backlight module according to claim 2 or 3, which is characterized in that the sealing lens and/or the optical lens
For symmetrical solid construction, perhaps hollow structure and surface are spherical surface or n times curved surface.
8. backlight module according to claim 2 or 3, which is characterized in that the sealing lens and/or the optical lens
Inner surface and/or outer surface be provided with micro-structure.
9. backlight module according to claim 1, which is characterized in that the LED is blue light high frequency LED or purple light high frequency
LED。
10. a kind of display device, which is characterized in that including backlight module as described in any one of claims 1-9.
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| CN201810482083.0A CN110501842A (en) | 2018-05-18 | 2018-05-18 | A kind of backlight module and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810482083.0A CN110501842A (en) | 2018-05-18 | 2018-05-18 | A kind of backlight module and display device |
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| CN110501842A true CN110501842A (en) | 2019-11-26 |
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| CN201810482083.0A Pending CN110501842A (en) | 2018-05-18 | 2018-05-18 | A kind of backlight module and display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112164743A (en) * | 2020-09-27 | 2021-01-01 | 深圳Tcl新技术有限公司 | Backlight module and display device |
Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101154351A (en) * | 2006-09-27 | 2008-04-02 | 深圳帝光电子有限公司 | Dynamic back light source module group for video controlling brightness and chroma of LED |
| CN101160670A (en) * | 2005-03-29 | 2008-04-09 | 飞利浦拉米尔德斯照明设备有限责任公司 | Wide emitting lens for led useful for backlighting |
| CN101639181A (en) * | 2009-08-07 | 2010-02-03 | 广东昭信光电科技有限公司 | Direct type backlighting system |
| DE102011107892A1 (en) * | 2011-07-18 | 2013-01-24 | Heraeus Noblelight Gmbh | Method for coating e.g. chip-on-board UV-LED module utilized in solar cell, involves curing and cross-linking liquid silicone with optoelectronic components and carriers, and removing carrier with hardened silicone coating from mold |
| CN103148449A (en) * | 2013-03-25 | 2013-06-12 | 苏州奥浦迪克光电技术有限公司 | LED (light emitting diode) lens with direct-lit type liquid crystal backlight |
| CN103244872A (en) * | 2013-05-10 | 2013-08-14 | 晶科电子（广州）有限公司 | Lens-free ultra-thin direct type backlight module |
| CN203240488U (en) * | 2013-03-29 | 2013-10-16 | 深圳Tcl新技术有限公司 | Backlight lens, direct backlight module and liquid crystal display |
| CN103542326A (en) * | 2013-09-30 | 2014-01-29 | 易美芯光（北京）科技有限公司 | Optical device capable of realizing high-color-gamut backlight |
| CN203519974U (en) * | 2013-10-11 | 2014-04-02 | 深圳Tcl新技术有限公司 | Light-emitting assembly of backlight module and liquid crystal display device |
| CN103887413A (en) * | 2012-12-24 | 2014-06-25 | 鸿富锦精密工业（深圳）有限公司 | Light emitting diode device and liquid crystal display device adopting same |
| CN104155803A (en) * | 2014-08-19 | 2014-11-19 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN104360537A (en) * | 2014-11-05 | 2015-02-18 | 创维液晶器件(深圳)有限公司 | Direct type backlight module and display device |
| CN105158970A (en) * | 2015-08-21 | 2015-12-16 | 深圳市华星光电技术有限公司 | Backlight module and display panel |
| CN105222006A (en) * | 2014-09-28 | 2016-01-06 | 惠科电子（深圳）有限公司 | Liquid crystal display and high colour gamut downward back photo structure thereof |
| CN105444044A (en) * | 2014-09-24 | 2016-03-30 | 青岛海信电器股份有限公司 | LED luminescent device, backlight unit and display panel |
| CN105467673A (en) * | 2015-12-21 | 2016-04-06 | 南京先进激光技术研究院 | Quantum dot backlight and liquid crystal display device |
| CN106784238A (en) * | 2016-11-30 | 2017-05-31 | 芜湖聚飞光电科技有限公司 | The preparation method of quantum dot lens-type direct LED backlight |
| US20170233645A1 (en) * | 2014-11-04 | 2017-08-17 | Shenzhen Tcl New Technology Co., Ltd | Perovskite quantum dot material and preparation method thereof |
| CN107340638A (en) * | 2017-08-09 | 2017-11-10 | 厦门天马微电子有限公司 | Backlight module, display module and display device |
| CN107946433A (en) * | 2017-11-09 | 2018-04-20 | 东南大学 | A kind of white light LEDs |
| CN208351200U (en) * | 2018-05-18 | 2019-01-08 | 深圳Tcl新技术有限公司 | A kind of backlight module and display device |
-
2018
- 2018-05-18 CN CN201810482083.0A patent/CN110501842A/en active Pending
Patent Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101160670A (en) * | 2005-03-29 | 2008-04-09 | 飞利浦拉米尔德斯照明设备有限责任公司 | Wide emitting lens for led useful for backlighting |
| CN101154351A (en) * | 2006-09-27 | 2008-04-02 | 深圳帝光电子有限公司 | Dynamic back light source module group for video controlling brightness and chroma of LED |
| CN101639181A (en) * | 2009-08-07 | 2010-02-03 | 广东昭信光电科技有限公司 | Direct type backlighting system |
| DE102011107892A1 (en) * | 2011-07-18 | 2013-01-24 | Heraeus Noblelight Gmbh | Method for coating e.g. chip-on-board UV-LED module utilized in solar cell, involves curing and cross-linking liquid silicone with optoelectronic components and carriers, and removing carrier with hardened silicone coating from mold |
| CN103887413A (en) * | 2012-12-24 | 2014-06-25 | 鸿富锦精密工业（深圳）有限公司 | Light emitting diode device and liquid crystal display device adopting same |
| CN103148449A (en) * | 2013-03-25 | 2013-06-12 | 苏州奥浦迪克光电技术有限公司 | LED (light emitting diode) lens with direct-lit type liquid crystal backlight |
| CN203240488U (en) * | 2013-03-29 | 2013-10-16 | 深圳Tcl新技术有限公司 | Backlight lens, direct backlight module and liquid crystal display |
| CN103244872A (en) * | 2013-05-10 | 2013-08-14 | 晶科电子（广州）有限公司 | Lens-free ultra-thin direct type backlight module |
| CN103542326A (en) * | 2013-09-30 | 2014-01-29 | 易美芯光（北京）科技有限公司 | Optical device capable of realizing high-color-gamut backlight |
| CN203519974U (en) * | 2013-10-11 | 2014-04-02 | 深圳Tcl新技术有限公司 | Light-emitting assembly of backlight module and liquid crystal display device |
| CN104155803A (en) * | 2014-08-19 | 2014-11-19 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN105444044A (en) * | 2014-09-24 | 2016-03-30 | 青岛海信电器股份有限公司 | LED luminescent device, backlight unit and display panel |
| CN105222006A (en) * | 2014-09-28 | 2016-01-06 | 惠科电子（深圳）有限公司 | Liquid crystal display and high colour gamut downward back photo structure thereof |
| US20170233645A1 (en) * | 2014-11-04 | 2017-08-17 | Shenzhen Tcl New Technology Co., Ltd | Perovskite quantum dot material and preparation method thereof |
| CN104360537A (en) * | 2014-11-05 | 2015-02-18 | 创维液晶器件(深圳)有限公司 | Direct type backlight module and display device |
| CN105158970A (en) * | 2015-08-21 | 2015-12-16 | 深圳市华星光电技术有限公司 | Backlight module and display panel |
| CN105467673A (en) * | 2015-12-21 | 2016-04-06 | 南京先进激光技术研究院 | Quantum dot backlight and liquid crystal display device |
| CN106784238A (en) * | 2016-11-30 | 2017-05-31 | 芜湖聚飞光电科技有限公司 | The preparation method of quantum dot lens-type direct LED backlight |
| CN107340638A (en) * | 2017-08-09 | 2017-11-10 | 厦门天马微电子有限公司 | Backlight module, display module and display device |
| CN107946433A (en) * | 2017-11-09 | 2018-04-20 | 东南大学 | A kind of white light LEDs |
| CN208351200U (en) * | 2018-05-18 | 2019-01-08 | 深圳Tcl新技术有限公司 | A kind of backlight module and display device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112164743A (en) * | 2020-09-27 | 2021-01-01 | 深圳Tcl新技术有限公司 | Backlight module and display device |
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