CN209447794U - High colour gamut quantum dot lamp bar and backlight module - Google Patents
High colour gamut quantum dot lamp bar and backlight module Download PDFInfo
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- CN209447794U CN209447794U CN201920212694.3U CN201920212694U CN209447794U CN 209447794 U CN209447794 U CN 209447794U CN 201920212694 U CN201920212694 U CN 201920212694U CN 209447794 U CN209447794 U CN 209447794U
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Abstract
The utility model discloses a kind of high colour gamut quantum dot lamp bar and backlight module, the high colour gamut quantum dot lamp bar includes circuit substrate, luminescence chip, heat insulation packed layer, quantum dot layer and the oxygen encapsulated layer that blocks water.Several luminescence chips are set to the circuit substrate top surface, the heat insulation packed layer is fixed at the luminescence chip top surface, the oxygen encapsulated layer that blocks water states the setting of heat insulation packed layer relative close with described, and the quantum dot layer is set between the heat insulation packed layer and the oxygen encapsulated layer that blocks water.It is solidificated on luminescence chip by heat insulation packed layer, quantum dot layer and the oxygen encapsulated layer level that blocks water, structure is simple, largely reduces the usage amount and process loss of quanta point material, obtains the display effect of high colour gamut.
Description
Technical field
The utility model relates to field of display technology more particularly to a kind of high colour gamut quantum dot lamp bar and backlight modules.
Background technique
Quantum dot mainly includes the quantum dot light emitting based on quanta point electroluminescent characteristic in the application of field of display technology
Diode display technology and quantum dot back light source technique based on quantum dot light Photoluminescence Properties.This two quantum dot display technologies
In addition to making to show that the manufacture of equipment is extremely frivolous, color representation is more outstanding, and colour gamut degree is obviously improved, and brings for user fresher
Gorgeous true color experience, compared to the great superiority of LCD display technology.
Quantum dot can be enclosed in LED in display technology, be enclosed in the glass tube beside display, or quantum is made
Point film is placed on diffuser plate or light guide plate.LED light source has been used widely in backlight industry, for quantum lighting
For item, extend the problem of service life of LED light source has become research staff's urgent need to resolve.And it is well known that quantum dot
Luminous efficiency it is more sensitive to change of external conditions, quantum dot is limited to the tolerance of high temperature, and excessively high temperature can reduction amount
The luminous efficiency of son point, or even make quantum point failure, and the quantum dot of nano-scale is very sensitive to water oxygen also as OLED,
It easily generates surface texture defect and fails.
Currently, the heat dissipation problem of LED light mainly uses heat-conducting glue to solve, there are heatproof, ageing-resistant effect are poor for this material
The shortcomings that, for quantum dot is shown, this radiating mode cannot be met the requirements.In addition, utilizing conventional single layer LED packaging plastic
Water protects the quantum dot in lamp bar, heat-insulated limited with barrier water oxygen ability, although the LED core of lower section can be protected
Piece, but for more fragile quantum dot, the protection that this encapsulation glue provides cannot be met the requirements.Therefore, extend
The service life of quantum dot lamp bar, which is meant that, carries out multiple protective to quantum dot therein with special material, is imitated with barrier
The better material of fruit replaces encapsulation glue to prepare long-life quantum dot lamp bar, and external high temperature and water oxygen environment can be prevented to quantum
The destruction of point.
Utility model content
The main purpose of the utility model is to provide a kind of good heat dissipation effect and the good high colour gamut quantum lighting of airtightness
Item and backlight module.
The utility model proposes a kind of high colour gamut quantum dot lamp bar, including circuit substrate, luminescence chip, heat insulation packed
Layer, quantum dot layer and the oxygen encapsulated layer that blocks water, several luminescence chips are set to the circuit substrate top surface, the heat insulation packed
Layer is fixed at the luminescence chip top surface, and the oxygen encapsulated layer that blocks water states the setting of heat insulation packed layer relative close with described,
The quantum dot layer is set between the heat insulation packed layer and the oxygen encapsulated layer that blocks water.
Further, the quantum dot layer is by containing green quantum dot, red quantum dot, encapsulation glue, diffusion particle, resisting
The material of oxidant is made.
Further, the heat insulation packed layer is by containing heat-barrier material, encapsulation glue, diffusion particle, anti-aging auxiliary agent
Material is made.
Further, the heat-barrier material includes one of nanoclay, aluminium nitride, beryllium oxide, aluminium powder or a variety of.
Further, the oxygen encapsulated layer that blocks water containing barrier material, encapsulation glue, diffusion particle, anti-aging by helping
The material of agent is made.
Further, the barrier material includes silica, aluminium oxide, polypropylene, polyvinylidene chloride, ethylene-vinyl
One of alcohol random copolymer is a variety of.
The utility model proposes a kind of backlight module, including backlight module lens, reflectance coating, metal backing, diffuser plate
Or light guide plate, diffusion barrier, brightness enhancement film and liquid crystal display panel, it further include high colour gamut quantum dot lamp bar, the high colour gamut quantum dot
Lamp bar includes circuit substrate, luminescence chip, heat insulation packed layer, quantum dot layer and the oxygen encapsulated layer that blocks water, several luminous cores
Piece is set to the circuit substrate top surface, and the heat insulation packed layer is fixed at the luminescence chip top surface, the oxygen envelope that blocks water
Dress layer and the heat insulation packed layer relative close of stating are arranged, and the quantum dot layer is set to the heat insulation packed layer and blocks water with described
Between oxygen encapsulated layer；
The reflectance coating is set to the metal backing bottom and inside, and the circuit substrate is set to the metal backing bottom
Or inside, several backlight module lens are correspondingly arranged in the circuit substrate top surface, and the backlight module lens and institute
Luminescence chip is stated to be oppositely arranged, the diffusion barrier includes upper diffusion barrier and lower diffusion barrier, the brightness enhancement film include upper brightness enhancement film and
Lower brightness enhancement film, the diffuser plate or light guide plate are set to above the high colour gamut quantum dot lamp bar or side, successively arranges in pairs or groups thereon
Lower diffusion barrier, lower brightness enhancement film, upper brightness enhancement film, upper diffusion barrier and liquid crystal display panel.
Further, the backlight module lens include lens body, and the lens body is equipped with light source mounting slot, enters light
Face, reflective surface and light-emitting surface, the lens body are made of optical grade material.
The utility model proposes high colour gamut quantum dot lamp bar and its backlight module, pass through heat insulation packed layer, quantum dot layer
And the oxygen encapsulated layer level that blocks water is solidificated on luminescence chip, structure is simple, saves manufacturing cost, promotes yields；By high color
Domain quantum dot lamp bar is applied in backlight module, reduces the usage amount and process loss of quanta point material, improves quantum dot
Utilization efficiency, obtain the display effect of high colour gamut.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the high colour gamut quantum dot lamp bar of an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of an embodiment of the present invention backlight module；
Fig. 3 is the structural schematic diagram for the quantum dot lamp bar that another embodiment of the utility model is collocated with backlight module lens；
Fig. 4 is the structural schematic diagram of another embodiment backlight module of the utility model；
Fig. 5 is the structural schematic diagram for the quantum dot lamp bar that another embodiment of the utility model is collocated with backlight module lens；
Fig. 6 is the structural schematic diagram of another embodiment backlight module of the utility model.
1 circuit substrate, 2 luminescence chips, 3 heat insulation packed layers, 4 quantum dot layers, 5 block water oxygen encapsulated layer, 6 high colour gamut quantum
Point lamp bar, 7 light guide plates, 8 lower diffusion barriers, 9 lower brightness enhancement films, brightness enhancement film on 10, diffusion barrier on 11,12 liquid crystal display panels, 13 is anti-
Film is penetrated, 14 mould group frames, 15 light modulation sites, 16 first lens bodies, 17 light source mounting slots, 18 metal backings, 19 reflector plates, 20 contain
The lamp bar of first lens, 21 diffuser plates, 22 second lens bodies, 23, bracket, 24 contain the lamp bar of the second lens.
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under all other embodiment obtained, fall within the protection scope of the utility model.
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 in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, such as
When the fruit particular pose changes, then directionality instruction also correspondingly changes correspondingly, and the connection, which can be, directly to be connected
It connects, is also possible to be indirectly connected with.
It in addition, the technical solution between each embodiment can be combined with each other, but must be with ordinary skill
Based on personnel can be realized, this technical side will be understood that when the combination of technical solution appearance is conflicting or cannot achieve
The combination of case is not present, also not within the protection scope of the requires of the utility model.
As shown in Figure 1, proposing a kind of high colour gamut quantum dot lamp bar of one preferred embodiment of the utility model, including circuit base
Plate 1, luminescence chip 2, heat insulation packed layer 3, quantum dot layer 4 and the oxygen encapsulated layer 5 that blocks water, several luminescence chips 2 are set to circuit base
1 top surface of plate, the luminescence chip 2 in the present embodiment are set as LED blue chip, and heat insulation packed layer 3 is fixed at the top of luminescence chip 2
Face, the oxygen encapsulated layer 5 that blocks water are set to heat insulation packed layer 3 and block water with the setting of 3 relative close of heat insulation packed layer, quantum dot layer 4 is stated
It hinders between oxygen encapsulated layer 5.Contain organic siliconresin, E-12 epoxy resin, nanoclay, nano aluminum nitride in heat insulation packed layer 3
Powder, beryllium oxide, Silane coupling agent KH550, di-2-ethylhexylphosphine oxide hexamethylene alkanamine (4,4'-PACM), four [β-(3,5- di-t-butyl -4- hydroxyls
Base phenyl) propionic acid] pentaerythritol ester；Contain green CdSe quantum dot, red CdSe quantum dots, 4,4'- (1- in quantum dot layer 4
Methyl ethylidene) biphenol, (chloromethyl) ethylene oxide, 2- acrylate, 1,6 hexanediol diacrylate, (2,4,6- tri-
Methyl benzoyl) diphenyl phosphine oxide, poly methyl silsesquioxane, three (2,4- di-t-butyl) phenyl-phosphites；It blocks water
Contain silica, polyacrylic resin, polyimide resin, polyacrylamide, isophorone diamine, carbon in oxygen encapsulated layer 5
SiClx, four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters, bis- (2,2,6,6- tetramethyl -4- piperidines
Base) sebacate.Its Green CdSe quantum dot dominant wavelength is 530 ± 2nm, half-peak breadth 28nm, red CdSe quantum dots master
Wavelength is 630 ± 2nm, half-peak breadth 30nm.It is solid by heat insulation packed layer 3, quantum dot layer 4 and 5 level of oxygen encapsulated layer that blocks water
Change on luminescence chip 2, structure is simple, saves manufacturing cost, improves the yields of high colour gamut quantum dot lamp bar.
In the present embodiment, quantum dot layer 4 by containing green quantum dot, red quantum dot, encapsulation glue, diffusion particle,
The material of antioxidant is made.Heat insulation packed layer 3 by containing heat-barrier material, encapsulation glue, diffusion particle, anti-aging auxiliary agent material
Material is made.Heat-barrier material includes one of nanoclay, aluminium nitride, beryllium oxide, aluminium powder or a variety of.Block water oxygen encapsulated layer 5
It is made of the material containing barrier material, encapsulation glue, diffusion particle, anti-aging auxiliary agent.Barrier material includes silica, oxidation
One of aluminium, polypropylene, polyvinylidene chloride, ethylene vinyl alcohol copolymer are a variety of.
A kind of high colour gamut quantum dot lamp bar preparation method of one preferred embodiment of the utility model, comprising:
Several luminescence chips 2 are arranged on circuit substrate 1 S1；
S2 in 2 surface drop heat insulation packed layer glue of luminescence chip and solidifies, obtains heat insulation packed layer 3；
S3 in 3 surface drop quantum dot layer glue of heat insulation packed layer and solidifies, obtains quantum dot layer 4；
S4 blocks water in 4 surface drop of quantum dot layer and oxygen encapsulated layer glue and solidifies, obtains the oxygen encapsulated layer 5 that blocks water.
In the present embodiment, in 3 surface drop quantum dot layer glue of heat insulation packed layer and solidify and obtain the step of quantum dot layer 4
Before rapid, comprising:
S5 is dissolved in encapsulation glue after quantum dot powder is carried out the processing of high molecular material package and stirs evenly, obtains quantum
Point layer glue.
As shown in Fig. 2, proposing a kind of backlight module of one preferred embodiment of the utility model, including reflectance coating 13, mould group
Frame 14, light guide plate 7, diffusion barrier, brightness enhancement film and liquid crystal display panel 12 further include high colour gamut quantum dot lamp bar 6, the high colour gamut
Quantum dot lamp bar 6 includes circuit substrate 1, luminescence chip 2, heat insulation packed layer 3, quantum dot layer 4 and the oxygen encapsulated layer 5 that blocks water, if
Drying hair optical chip 2 is set to 1 top surface of circuit substrate, and heat insulation packed layer 3 is fixed at 2 top surface of luminescence chip, and block water oxygen encapsulated layer 5
It is arranged with 3 relative close of heat insulation packed layer is stated, quantum dot layer 4 is set between heat insulation packed layer 3 and the oxygen encapsulated layer 5 that blocks water；Instead
Film 13 is penetrated set on 14 bottom of mould group frame, circuit substrate 1 is set to 14 inside of mould group frame, and diffusion barrier includes upper diffusion barrier 11 and lower diffusion
Film 8, brightness enhancement film include upper brightness enhancement film 10 and lower brightness enhancement film 9, and high colour gamut quantum dot lamp bar 6 is set to 7 side of light guide plate, leads
Diffusion barrier 8, lower brightness enhancement film 9, upper brightness enhancement film 10, upper diffusion barrier 11 and liquid crystal display panel 12 under 7 top of tabula rasa is successively arranged in pairs or groups.
What the high colour gamut quantum dot lamp bar 6 of the present embodiment was arranged in pairs or groups is side entering type display backlight modular structure, is specifically included
The light guide plate 7 that is set gradually, lower diffusion barrier 8, lower brightness enhancement film 9, upper brightness enhancement film 10, upper diffusion barrier 11, liquid crystal display panel 12,
Reflectance coating 13, mould group frame 14, light modulation site 15.LED blue chip, quantum dot layer 4 issue blue, red, green light and constitute three primary colors,
And the feux rouges and green light of quantum dot sending have the wide emission peak of narrow half-wave, and the color domain coverage ratio of display can be improved.High colour gamut
Quantum dot lamp bar 6 is set to 14 inner sidewall of mould group frame, and is oppositely arranged with the side wall of light guide plate 7, and light guide plate 7 is by high colour gamut quantum dot
The point light source that lamp bar 6 issues equably is converted into area source.Mould group frame 14 can be by bottom plate and enclosing the side plate set on bottom plate surrounding
Composition, and the inside of bottom plate is equipped with reflectance coating 13, with the service efficiency for improving light, and the folded diffusion barrier set and prismatic brightness
The multi-direction optical homogeneity in space and luminance gain effect may be implemented in film, further promotes the effect that high colour gamut is shown.
As shown in figure 3, proposing a kind of backlight module lens of another preferred embodiment of the utility model, the first lens sheet
Material selection PMMA, PS or PC optical material of body 16, the first lens body 16 include light source mounting slot 17, incidence surface and light out
Face；Light source mounting slot 17 is located at the lower section of incidence surface, and incidence surface includes entering spire face and be located at positioned at the top surface of mounting groove
The incident side wall surface of the side peripheral wall of mounting groove.
As shown in figure 4, proposing a kind of backlight module combined with Fig. 3, this high colour gamut quantum dot lamp bar 6 is used to arrange in pairs or groups directly
Following formula display backlight modular structure, including set gradually metal backing 18, reflector plate 19, the lamp bar 20 containing the first lens,
Diffuser plate 21, lower diffusion barrier 8, lower brightness enhancement film 9, upper brightness enhancement film 10, upper diffusion barrier 11 and liquid crystal display panel 12.Luminescence chip 2
The blue light issued can excite red quantum dot and green quantum dot in quantum dot layer 4 to generate red light and green light, simultaneously
Three primary colors are constituted with the blue light for having neither part nor lot in conversion, the various colorss such as white light is mixed to get, is shown on liquid crystal display panel 12 wide
The color of colour gamut.The above-mentioned lamp bar 20 for containing the first lens is set to 18 inside of metal backing, and the medial surface of metal backing 18 is equipped with
Reflector plate 19, side wall is to be obliquely installed, so that mixed light space is trapezoidal.Above-mentioned reflector plate 19, diffusion barrier and brightness enhancement film, Ke Yizeng
The service efficiency for adding light promotes the uniformity of display, realizes optics luminance gain, further increases the effect that high colour gamut is shown.
As shown in figure 5, proposing a kind of backlight module lens of another preferred embodiment of the utility model, the second lens body
22 material selection PMMA, PS or PC optical material.Second lens body 22 includes light source mounting slot 17, incidence surface, reflective surface
And light-emitting surface；Light source mounting slot 17 is located at the lower section of incidence surface, incidence surface include positioned at the top surface of mounting groove enter spire face with
And the incident side wall surface of the side peripheral wall positioned at mounting groove.Reflective surface is used for will be from the light total reflection of spire face incidence be entered to light out
Face, light-emitting surface include upper light-emitting surface for being emitted the light of reflective surface total reflection and for be emitted from the incidence of incident side wall surface
The lower light-emitting surface of light.
As shown in fig. 6, proposing a kind of backlight module combined with Fig. 5, this high colour gamut quantum dot lamp bar 6 is used to arrange in pairs or groups directly
Following formula display backlight modular structure, including set gradually metal backing 18, reflector plate 19, be equipped with containing the second lens
Lamp bar 24, diffuser plate 21, lower diffusion barrier 8, lower brightness enhancement film 9, upper brightness enhancement film 10, upper diffusion barrier 11, liquid crystal display panel 12.It shines
The blue light that chip 2 issues can excite in quantum dot layer 4 quantum dot to generate green light and red light, at the same with have neither part nor lot in conversion
Blue light constitutes three primary colors, is mixed to get the various colorss such as white light, the color of wide colour gamut is shown on liquid crystal display panel 12.
The utility model relates to high colour gamut quantum dot lamp bar include circuit substrate 1, luminescence chip 2, heat insulation packed layer 3,
Quantum dot layer 4, block water oxygen encapsulated layer 5, avoids the production technology of quantum dot film and quantum contact plate complexity, saves and be prepared into
This, improves yields.High colour gamut quantum dot lamp bar is applied in back light model setting technology, quantum dot is largely reduced
The usage amount and process loss of material, improve the utilization efficiency of quantum dot, reduce quantum dot backlight cost, obtain height
The display effect of colour gamut, meanwhile, this high colour gamut quantum dot lamp bar is matched with the manufacturing process of complete system plant's display module, is conducive to reality
Now extensive industrialization has very big technique compatible degree and market application prospect.
The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model,
Equivalent structure or equivalent flow shift made by using the description of the utility model and the drawings, is directly or indirectly transported
Used in other related technical areas, it is also included in the patent protection scope of the utility model.
Claims (8)
1. a kind of high colour gamut quantum dot lamp bar, which is characterized in that including circuit substrate, luminescence chip, heat insulation packed layer, quantum dot
Layer and the oxygen encapsulated layer that blocks water, several luminescence chips are set to the circuit substrate top surface, and the heat insulation packed layer fixation is set
In the luminescence chip top surface, the oxygen encapsulated layer that blocks water states the setting of heat insulation packed layer relative close, the quantum with described
Point layer is set between the heat insulation packed layer and the oxygen encapsulated layer that blocks water.
2. high colour gamut quantum dot lamp bar according to claim 1, which is characterized in that the quantum dot layer is by containing green amount
Sub- point, red quantum dot, encapsulation glue, diffusion particle, antioxidant material be made.
3. high colour gamut quantum dot lamp bar according to claim 1, which is characterized in that the heat insulation packed layer is by containing heat-insulated
Material, encapsulation glue, diffusion particle, anti-aging auxiliary agent material be made.
4. high colour gamut quantum dot lamp bar according to claim 3, which is characterized in that the heat-barrier material is viscous including nanometer
One of soil, aluminium nitride, beryllium oxide, aluminium powder are a variety of.
5. high colour gamut quantum dot lamp bar according to claim 1, which is characterized in that the oxygen encapsulated layer that blocks water is by containing barrier
Material, encapsulation glue, diffusion particle, anti-aging auxiliary agent material be made.
6. a kind of high colour gamut quantum dot lamp bar according to claim 5, which is characterized in that the barrier material includes second
One of alkene-vinyl alcohol random copolymers, silica, aluminium oxide, polypropylene and polyvinylidene chloride are a variety of.
7. a kind of backlight module, including backlight module lens, reflectance coating, metal backing, diffuser plate or light guide plate, diffusion barrier, increasing
Bright film and liquid crystal display panel, which is characterized in that further include high colour gamut quantum dot lamp bar, the high colour gamut quantum dot lamp bar includes
Circuit substrate, luminescence chip, heat insulation packed layer, quantum dot layer and the oxygen encapsulated layer that blocks water, several luminescence chips are set to institute
Circuit substrate top surface is stated, the heat insulation packed layer is fixed at the luminescence chip top surface, oxygen encapsulated layer and the institute of blocking water
The setting of heat insulation packed layer relative close is stated, the quantum dot layer is set to the heat insulation packed layer and the oxygen encapsulated layer that blocks water
Between；
The reflectance coating is set to the metal backing bottom and inside, and the circuit substrate is set to the metal backing bottom or interior
Side, several backlight module lens are correspondingly arranged in the circuit substrate top surface, and the backlight module lens and the hair
Optical chip is oppositely arranged, and the diffusion barrier includes upper diffusion barrier and lower diffusion barrier, and the brightness enhancement film includes upper brightness enhancement film and lower increasing
Bright film, the diffuser plate or light guide plate are set to above the high colour gamut quantum dot lamp bar or side, and successively collocation is lower thereon expands
Dissipate film, lower brightness enhancement film, upper brightness enhancement film, upper diffusion barrier and liquid crystal display panel.
8. backlight module according to claim 7, which is characterized in that the backlight module lens include lens body, institute
Lens body is stated equipped with light source mounting slot, incidence surface, reflective surface and light-emitting surface, the lens body is made of optical grade material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920212694.3U CN209447794U (en) | 2019-02-18 | 2019-02-18 | High colour gamut quantum dot lamp bar and backlight module |
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| CN201920212694.3U CN209447794U (en) | 2019-02-18 | 2019-02-18 | High colour gamut quantum dot lamp bar and backlight module |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109830475A (en) * | 2019-02-18 | 2019-05-31 | 南通创亿达新材料股份有限公司 | High colour gamut quantum dot lamp bar, preparation method and its backlight module |
| CN112164743A (en) * | 2020-09-27 | 2021-01-01 | 深圳Tcl新技术有限公司 | Backlight module and display device |
| CN114637144A (en) * | 2022-04-27 | 2022-06-17 | 重庆翰博显示科技研发中心有限公司 | High-brightness light homogenizing film and ultrathin backlight module |
-
2019
- 2019-02-18 CN CN201920212694.3U patent/CN209447794U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109830475A (en) * | 2019-02-18 | 2019-05-31 | 南通创亿达新材料股份有限公司 | High colour gamut quantum dot lamp bar, preparation method and its backlight module |
| CN112164743A (en) * | 2020-09-27 | 2021-01-01 | 深圳Tcl新技术有限公司 | Backlight module and display device |
| CN114637144A (en) * | 2022-04-27 | 2022-06-17 | 重庆翰博显示科技研发中心有限公司 | High-brightness light homogenizing film and ultrathin backlight module |
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