CN206739014U - LED luminescence components, lamp bar and backlight module - Google Patents
LED luminescence components, lamp bar and backlight module Download PDFInfo
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- CN206739014U CN206739014U CN201720483243.4U CN201720483243U CN206739014U CN 206739014 U CN206739014 U CN 206739014U CN 201720483243 U CN201720483243 U CN 201720483243U CN 206739014 U CN206739014 U CN 206739014U
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Abstract
The utility model discloses a kind of LED luminescence components, and the LED luminescence components include：Support, blue chip, green glow chip and clad.The support has an opening up cavity volume, the blue chip is located at the bottom of the cavity volume, the green glow chip is separately located at the bottom of the cavity volume with the blue chip, the clad is coated on blue chip and the green glow chip, and the clad includes packaging plastic and some red quantum dots being scattered in the packaging plastic.The utility model additionally provides a kind of lamp bar and backlight module.The utility model replaces green light quantum point by the green glow chip, and then can control blue chip and the green glow chip to excite the red quantum dot to light, and reduces the dosage of the red quantum dot material, while realize high colour gamut backlight.
Description
Technical field
LED display fields are the utility model is related to, more particularly to a kind of LED luminescence components, lamp bar and backlight module.
Background technology
Colour gamut refers to that a technological system is capable of the summation of caused color.In the prior art, in order to realize high colour gamut
Backlight, typically use the excitated red and green quanta point material of blue chip.Existing quanta point material is quicker to heat, water and oxygen
Sense, when quanta point material is packaged in LED, because heat is larger, can accelerate the erosion of water and oxygen to quanta point material, so
Need to come exclusion of water and oxygen in both quantum dot outer wrap Obstruct membranes.It is hot and green quanta point material is because size is smaller
Less stable, it is more difficult to good parcel is realized, so as to propose higher requirement to encapsulation.
Quantum dot is encapsulated in glass tube or is packaged in film in addition, the quantum dot television backlight module of existing volume production typically uses
In piece, quantum pipe can be by will vacuumize mode come exclusion of water and oxygen in pipe, quantum film can be by adding the side of barrier layer
Formula comes exclusion of water and oxygen, and away from heat is reduced to red quantum dot and green quantum dot by way of thermal source, especially
The influence of green quantum dot.But because quantum pipe or quantum film mode need to use more quanta point material, and quantum pipe needs
The technique vacuumized, quantum film need to largely use barrier layer, and both are applied to greatly increase cost in backlight module.
Another LED luminescence components set-up mode be using three kinds of chip packages of red, green, blue in same LED, but due to
Blue, green chip typically uses GaN epitaxial material, and red light chips use GaAsP systems epitaxial material, the light decay of two kinds of chip materials
It is inconsistent with the heat curve that declines, cause the technical problems such as circuit complex designing, mixed light complex designing.
Utility model content
Main purpose of the present utility model is to provide a kind of LED luminescence components, lamp bar and backlight module, it is intended to ensures high color
While domain, it is easy to adjust color dot, and reduce the dosage of red quantum dot.
To achieve the above object, the utility model proposes LED luminescence components include：
Support, the support have an opening up cavity volume；
Blue chip, the blue chip are located at the bottom of the cavity volume；
Green glow chip, the green glow chip are separately located at the bottom of the cavity volume with the blue chip；And
Clad, the clad are coated on blue chip and the green glow chip, and the clad includes packaging plastic
With some red quantum dots being scattered in the packaging plastic.
Preferably, blue chip and the green glow chip is in parallel.
Preferably, blue chip and the green glow chip-in series.
Preferably, the clad also includes being scattered in the packaging plastic and being used for the resistance for wrapping up the red quantum dot
Interlayer.
Preferably, the support includes bottom wall and the side wall from bottom wall extension, and the bottom wall and the side wall are common
The cavity volume, the blue chip and the green glow chip encircle a city on the bottom wall, the clad is filled in the appearance
Intracavitary.
Preferably, the cavity volume is set from the bottom wall to the opening direction of the support in flaring.
The utility model also provides a kind of lamp bar, if the lamp bar include the printed circuit board (PCB) that is connected with external circuit and
Dry above-mentioned LED luminescence component, the LED luminescence components are installed on the printed circuit board (PCB).
The utility model also provides a kind of backlight module, and the backlight module includes lamp bar described above, for described
Reflector plate that the light that lamp bar is sent is reflected and for will be sent through the light that the reflector plate reflects and the lamp bar
Light derived from leaded light component.
Preferably, the reflector plate is formed as groove shapes, and the lamp bar is arranged at the bottom land of the reflector plate, described to lead
Optical assembly is arranged at the notch of the reflector plate, and the leaded light component includes diffuser plate and polylith blooming piece, the diffuser plate
It is arranged between the lamp bar and the blooming piece.
Preferably, the leaded light component includes light guide plate and polylith blooming piece, and the light guide plate is located at the reflector plate
Between the blooming piece, the light guide plate includes the reflecting surface towards the reflector plate, going out towards the blooming piece
The incidence surface of smooth surface and the connection exiting surface and the reflecting surface, the lamp bar are set close to the incidence surface of the light guide plate
Put.
In technical solutions of the utility model, by setting the green glow chip to replace green light quantum point, and then controllable institute
Blue chip and the excitated red quantum dot light emitting of green glow chip are stated, reduces the dosage of the red quantum dot material, the amount of eliminating
The encapsulating structures such as sub- film or quantum pipe are set, so as to reduce cost；It is controllable to pass through the blue chip and the electricity of green glow chip
Stream, so as to adjust the light that blue chip and the green glow chip is sent so that color dot is easy to adjust；Simultaneously using green glow chip,
Blue chip and red quantum dot can realize high colour gamut backlight.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to the structure shown in these accompanying drawings.
Fig. 1 is the structural representation of the embodiment of the utility model LED luminescence components one；
Fig. 2 is the circuit diagram that the blue chip of an embodiment of the present utility model and Green Chip access circuit；
Fig. 3 is the structural representation that the embodiment of the utility model LED luminescence components one is applied to backlight module；
Fig. 4 is the red, green, blue tristimulus values function curve diagram of the embodiment of the utility model LED luminescence components one；
Fig. 5 is the spectral distribution function curve map of the embodiment of the utility model backlight module one；
Fig. 6 is the circuit diagram that the blue chip of another embodiment of the present utility model and Green Chip access circuit；
Fig. 7 is the structural representation that another embodiment of the utility model LED luminescence components is applied to backlight module.
Drawing reference numeral explanation：
Realization, functional characteristics and the advantage of the utility model purpose will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only part of the embodiment of the present utility model, rather than all
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belong to the scope of the utility model protection.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in the utility model embodiment
It is only used for explaining relative position relation under a certain particular pose (as shown in drawings) between each part, motion conditions etc., such as
When the fruit particular pose changes, then directionality instruction also correspondingly changes therewith.
In addition, and it can not be managed in the utility model such as relating to the description of " first ", " second " etc. is only used for describing purpose
Solve to indicate or implying its relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define " the
One ", at least one this feature can be expressed or be implicitly included to the feature of " second ".It is " more in description of the present utility model
It is individual " it is meant that at least two, such as two, three etc., unless otherwise specifically defined.
In the utility model, unless otherwise clearly defined and limited, term " connection ", " fixation " etc. should do broad sense reason
Solution, for example, " fixation " can be fixedly connected or be detachably connected, or integrally；Can mechanically connect, also may be used
Be electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, can be the connection of two element internals
Or the interaction relationship of two elements, limited unless otherwise clear and definite.For the ordinary skill in the art, can be with
Concrete meaning of the above-mentioned term in the utility model is understood as the case may be.
In addition, the technical scheme between each embodiment of the utility model can be combined with each other, but must be with ability
Domain those of ordinary skill can be implemented as basis, will be understood that when the combination appearance of technical scheme is conflicting or can not realize
The combination of this technical scheme is not present, also not within the protection domain of the requires of the utility model.
The embodiment of the utility model one proposes a kind of LED luminescence components 10, wherein, it is blue in the present embodiment for convenience of description
Optical chip is the first blue chip 13, and green glow chip is the first green glow chip 15.Fig. 1 is refer to, is implemented in the utility model one
In example, the LED luminescence components 10 include support 11, the first blue chip 13, the first green glow chip 15 and clad 17.
Specifically, support 11 be used to housing the first blue chip 13 of clad 17 and installation, the first green glow chip 15 with
Electric conductor (not shown) etc..Electric conductor is connected to the bottom or outside of support 11, and respectively with the first blue chip 13 and first
Green glow chip 15 electrically connects, and makes the first blue chip 13 and the conductive luminous of the first green glow chip 15.Electric conductor can be copper sheet, make
Support 11 mounts on a printed circuit；Electric conductor can also be conductive base pin, support 11 is inserted on a printed circuit.Branch
Frame 11 includes bottom wall 113 and the side wall 115 extended from bottom wall 113.Bottom wall 113 and side wall 115 surround with an opening jointly
On bottom wall 113, integument 17 is filled in appearance for 110 cavity volume 111 upward, the first blue chip 13 and the first green glow chip 15
In chamber 111.Opening 110 direction of the size of cavity volume 111 from bottom wall 113 to support 11 is set in flaring.So that the first blue light core
After the light that the green glow chip 15 of piece 13 and first is sent is gathered in cavity volume 111, then the direction injection towards opening 110.
Referring to Fig.1 and 2, in the present embodiment, the first blue chip 13 is used to send blue light, specifically, blue light core
Piece sends the blue light that centre wavelength ripple is 400nm~480nm；Green glow chip is used to send green glow, specifically, green glow chip is sent
Centre wavelength is 500nm~580nm green glow.First blue chip 13 and the first green glow chip 15 are separately located at cavity volume 111
Bottom.First blue chip 13 and the luminous of the first green glow chip 15 are set up, light is emitted upwards, the first blue light core
The another side of the green glow chip 15 of piece 13 and first contacts with bottom wall 113 so that the first blue chip 13, the first green glow chip 15 with
Electric conductor electrically connects, and facilitates the attachment of LED luminescence components 10.In the present embodiment, the first blue chip 13 and the first green glow
The quantity of chip 15 is respectively one, and the first blue chip 13 and the first green glow chip 15 are in parallel so that it is blue can to adjust first respectively
The electric current that the green glow chip 15 of optical chip 13 and first passes through, is advantageous to the adjustment of subsequent color point.
Referring once again to Fig. 1, in the present embodiment, clad 17 is coated on the first blue chip 13 and the first green glow chip
On 15, the light that the first blue chip 13 and the first green glow chip 15 are sent is set to be injected into clad 17.Clad 17 includes envelope
Fill glue 171, some red quantum dots 173 being scattered in packaging plastic 171 and be scattered in packaging plastic 171 and red for wrapping up
The barrier layer 175 of color quantum dot 173.Barrier layer 175 can wrap up one or more red quantum dots 173.Barrier layer 175 obstructs
The erosion of water and oxygen to red quantum dot 173.Red quantum dot 173 is sent by the first blue chip 13 and the first green glow chip 15
Light excite after, send centre wavelength be 600nm~680nm feux rouges.The feux rouges and remaining blue and green light internally light path
In be mixed to form the wider white light of colour gamut, so as in the display device applied to LED luminescence components 10 so that the white light of needs
Without being formed in the external circuits of LED luminescence components 10, the dosage for both having reduced red quantum dot 173 is so set, also saved
The encapsulating structure such as quantum film or quantum pipe has been removed, has reduced production cost.
In addition, the utility model also proposes a kind of lamp bar, lamp bar is the first lamp bar in the present embodiment for convenience of description
101.First lamp bar 101 can be applied on the display apparatus, and first lamp bar 101 includes the printing being connected with external circuit
Circuit board and some LED luminescence components 10 being installed on printed circuit board (PCB), wherein, printed circuit board (PCB) can be flexible circuit
Plate etc..Below exemplified by the backlight module of the first lamp bar 101 to be installed, illustrate application of the LED luminescence components in backlight module,
Backlight module in other electronic products such as mobile phone, flat board or computer monitor can refer to but be not limited to following implementation
Example.
Further, the utility model also provides a kind of backlight module, for convenience of description backlight module in the present embodiment
For the first backlight module 1, reflector plate is described as the first reflector plate 103, and leaded light component is described as the first leaded light component 105, optics
Diaphragm is described as the first blooming piece 1053.
Referring to Fig. 3, the first backlight module 1 uses direct-type backlight framework, it includes the first lamp bar 101 and for the
The first reflector plate 103 and the light for will be reflected through the first reflector plate 103 that the light that one lamp bar 101 is sent is reflected
First leaded light component 105 derived from the light sent with the first lamp bar 101, wherein, the first lamp bar 101 uses as light source.The
One reflector plate 103 is formed as groove shapes, and the first lamp bar 101 is arranged at the bottom land of the first reflector plate 103.First leaded light component
105 are arranged at the notch of the first reflector plate 103, and the first leaded light component 105 includes diffuser plate 1051 and the blooming piece of polylith first
1053, diffuser plate 1051 is arranged between the first lamp bar 101 and the first blooming piece 1053.Specifically, the first blooming piece
1053 can include diffusion sheet, blast piece, DBEF diaphragms and various compound film sheets etc..Certainly in other embodiments, first
Lamp bar 101 can also use other modes to be applied in backlight module.When first backlight module 1 works, in the first lamp bar 101
The white light that LED luminescence components 10 are sent, reflex on diffuser plate 1051 through the first reflector plate 103, and spread by diffuser plate 1051
To the first blooming piece 1053, white light shows after the processing of the first blooming piece 1053 on the display screen of the first backlight module 1
The color of more horn of plenty is shown.
Fig. 4 and Fig. 5 are referred to, it is W to set spectrum red, green, blue tristimulus values functionr、Wg、Wb, spectral distribution function W,
X=SUM (W × Wr), Y=SUM (W × Wg), Z=SUM (W × Wb), then x, y color dot are：X=X/ (X+Y+Z), y=Y/ (X+Y+
Z).As shown in Figure 4 and Figure 5, using LED luminescence components 10 under a certain electric current, the red, green, blue tristimulus of the first backlight module 1
Value function as shown in figure 4, the first backlight module 1 spectral distribution function W as shown in figure 5, then its x/y color dot be 0.265/
0.295；, can be by the current reduction of the first green glow chip 15 if y color dots need to be reduced.With reference to this example, if by the first blue light core
Piece 13 is reduced to 0.9 times of primary current, and its x/y color dot is about 0.267/0.284.By adjusting the first blue chip 13 and first
The electric current of green glow chip 15, and the centre wavelength of the first blue chip 13 of adjustment and the first green glow chip 15, it can adjust x/y colors
Point is required color dot.In actual use, whether the first blue chip 13 and the first green glow chip 15 need different electric currents, and
How electric current adjusts, and can make relative set according to being actually needed.
, it is necessary to especially illustrate in the present embodiment, the luminescent material of the first blue chip 13 and the first green glow chip 15
Can be InGaN alloy (InxGa1-xN) and/or gallium nitride (GaN), central core and epitaxial layer are specifically included, epitaxial layer
Thickness can be 1~10um, to obtain required blue light and green glow；Red quantum dot is the first of II~VI race's element composition
Any one in compound, either any one in the second compound of III~group Ⅴ element composition or the first chemical combination
The core shell structure compound or Doped nanocrystal that a variety of claddings in thing and/or second compound are formed, required with acquisition
Feux rouges.Barrier material can be：SiO2、TiO2、Al2O3、CaCO3、BaSO4, polymethyl methacrylate (PMMA), polyphenyl second
One or more in alkene (PS), alkene nitrile-BS (ABS), polyurethane (PU), organosilicon polymer, with
Water and oxygen are effectively obstructed under conditions of higher temperatures.
Another embodiment of the utility model proposes a kind of LED luminescence components, for convenience of description in the present embodiment, blue light core
Piece is the second blue chip 23, and green glow chip is the second green glow chip 25.Referring to Fig. 6, the LED luminescence components in the present embodiment
It is with the difference of Fig. 1 LED luminescence components：Second blue chip 23 and the second green glow chip 25 are connected, and therefore, are passed through
Second blue chip 23 is identical with the electric current of the second green glow chip 25.
In addition, the utility model proposes a kind of lamp bar, lamp bar is the second lamp bar 201 in the present embodiment for convenience of description.
The difference of second lamp bar 201 and Fig. 3 the first lamp bar 101 is：LED luminescence components in second lamp bar 201 are Fig. 6's
LED luminescence components.
Further, the utility model also proposes a kind of backlight module, for convenience of description backlight module in the present embodiment
For the second backlight module 2, reflector plate is the second reflector plate 203, and leaded light component is the second leaded light component 205, blooming piece
Two blooming pieces 2053.
Referring to Fig. 7, the difference of second backlight module 2 and Fig. 3 the first backlight module 1 is：Second backlight mould
Group 2 uses side entrance back framework, and the second leaded light component 205 includes light guide plate 2051 and the second blooming piece of polylith 2053, led
Tabula rasa 2051 is located between the second reflector plate 203 and the second blooming piece 2053, and light guide plate 2051 is included towards the second reflector plate
203 reflecting surface, exiting surface and the incidence surface of connection exiting surface and reflecting surface towards the second blooming piece 2053, the second lamp
Bar 201 is set close to the incidence surface of light guide plate 2051.Specifically, the second blooming piece 2053 can include diffusion sheet, blast piece,
DBEF diaphragms and various compound film sheets etc..
When second backlight module 2 works, white light that the LED luminescence components in the second lamp bar 201 are sent enters from incidence surface
Light guide plate 2051, guided through light guide plate 2051 to the second blooming piece 2053；Or guided through light guide plate 2051 to second anti-
After penetrating piece 203, then sent after light guide plate 2051 is exported to the second blooming piece 2053 upwards.White light is through the second blooming piece
After 2053 processing, the color of more horn of plenty is shown on the display screen of the second backlight module 2.
Preferred embodiment of the present utility model is these are only, not thereby limits the scope of the claims of the present utility model, it is every
Under design of the present utility model, the equivalent structure transformation made using the utility model specification and accompanying drawing content, or directly/
Indirectly other related technical areas are used in be included in scope of patent protection of the present utility model.
Claims (10)
- A kind of 1. LED luminescence components, it is characterised in that including：Support, the support have an opening up cavity volume；Blue chip, the blue chip are located at the bottom of the cavity volume；Green glow chip, the green glow chip are separately located at the bottom of the cavity volume with the blue chip；AndClad, the clad are coated on blue chip and the green glow chip, and the clad includes packaging plastic and divided Dissipate in some red quantum dots in the packaging plastic.
- 2. LED luminescence components as claimed in claim 1, it is characterised in that blue chip and the green glow chip is in parallel.
- 3. LED luminescence components as claimed in claim 1, it is characterised in that blue chip and the green glow chip-in series.
- 4. the LED luminescence components as described in any one of claims 1 to 3, it is characterised in that the clad also includes being scattered in The packaging plastic is interior and is used for the barrier layer for wrapping up the red quantum dot.
- 5. the LED luminescence components as described in any one of claims 1 to 3, it is characterised in that the support includes bottom wall and from institute State the side wall of bottom wall extension, the bottom wall and the side wall are encircled a city the cavity volume, the blue chip and the green glow core jointly On the bottom wall, the clad is filled in the cavity volume piece.
- 6. LED luminescence components as claimed in claim 5, it is characterised in that the cavity volume is from the bottom wall to the support Opening direction is set in flaring.
- A kind of 7. lamp bar, it is characterised in that the lamp bar include the printed circuit board (PCB) that is connected with external circuit and several such as LED luminescence components described in any one of claim 1~6, the LED luminescence components are installed on the printed circuit board (PCB).
- 8. a kind of backlight module, it is characterised in that the backlight module includes lamp bar as claimed in claim 7, for institute State reflector plate and the light for will be reflected through the reflector plate and lamp bar hair that the light that lamp bar is sent is reflected Leaded light component derived from the light gone out.
- 9. backlight module as claimed in claim 8, it is characterised in that the reflector plate is formed as groove shapes, the lamp bar The bottom land of the reflector plate is arranged at, the leaded light component is arranged at the notch of the reflector plate, and the leaded light component includes expanding Fall apart and be arranged at polylith blooming piece, the diffuser plate between the lamp bar and the blooming piece.
- 10. backlight module as claimed in claim 8, it is characterised in that the leaded light component includes light guide plate and polylith optics Diaphragm, the light guide plate are located between the reflector plate and the blooming piece, and the light guide plate is included towards the reflector plate Reflecting surface, towards the exiting surface of the blooming piece and the incidence surface of the connection exiting surface and the reflecting surface, it is described Lamp bar is set close to the incidence surface of the light guide plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720483243.4U CN206739014U (en) | 2017-05-03 | 2017-05-03 | LED luminescence components, lamp bar and backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720483243.4U CN206739014U (en) | 2017-05-03 | 2017-05-03 | LED luminescence components, lamp bar and backlight module |
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| CN206739014U true CN206739014U (en) | 2017-12-12 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108071948A (en) * | 2016-11-15 | 2018-05-25 | 迎辉科技股份有限公司 | Quantum structure light emitting module |
| CN108613139A (en) * | 2018-07-04 | 2018-10-02 | 天津中环电子照明科技有限公司 | Quantum dot LED packagings and lamps and lanterns |
| CN110242876A (en) * | 2019-05-20 | 2019-09-17 | 江门市金扬电器有限公司 | A kind of intelligence module type panel light |
| WO2024051256A1 (en) * | 2022-09-07 | 2024-03-14 | 惠州视维新技术有限公司 | Backlight module, display device, and backlight module manufacturing method |
-
2017
- 2017-05-03 CN CN201720483243.4U patent/CN206739014U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108071948A (en) * | 2016-11-15 | 2018-05-25 | 迎辉科技股份有限公司 | Quantum structure light emitting module |
| CN108613139A (en) * | 2018-07-04 | 2018-10-02 | 天津中环电子照明科技有限公司 | Quantum dot LED packagings and lamps and lanterns |
| CN110242876A (en) * | 2019-05-20 | 2019-09-17 | 江门市金扬电器有限公司 | A kind of intelligence module type panel light |
| WO2024051256A1 (en) * | 2022-09-07 | 2024-03-14 | 惠州视维新技术有限公司 | Backlight module, display device, and backlight module manufacturing method |
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