CN203771205U - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
- Publication number
- CN203771205U CN203771205U CN201420141772.2U CN201420141772U CN203771205U CN 203771205 U CN203771205 U CN 203771205U CN 201420141772 U CN201420141772 U CN 201420141772U CN 203771205 U CN203771205 U CN 203771205U
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- quantum dot
- backlight module
- reflecting plate
- light
- lgp
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- 239000002096 quantum dot Substances 0.000 claims abstract description 52
- 238000009792 diffusion process Methods 0.000 claims description 10
- 230000000875 corresponding Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 6
- 239000011159 matrix material Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000003287 optical Effects 0.000 description 2
- 206010015150 Erythema Diseases 0.000 description 1
- 230000005142 aphototropism Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
Abstract
The utility model relates to the technical field of displaying, in particular to a backlight module and a display device. The backlight module comprises a light guiding plate, light emitting diodes, a first reflecting plate and a quantum dot film, wherein the light emitting diodes provide light for the light guiding plate; the first reflecting plate is arranged on the upper side of the light guiding plate; the quantum dot film is arranged on the upper side of the first reflecting plate; light holes which are arrayed in a matrix manner are formed in the first reflecting plate; quantum dots which are arrayed in a matrix manner are arranged on the quantum dot film; and the light holes are in one-to-one correspondence to the quantum dots. Backlight of the backlight module exits through the light holes, and is effectively gathered to obtain a point light source; the quantum dot material utilization rate is increased; the technical effects of saving quantum dot materials and reducing the cost are achieved; and the purpose of effectively dissipating the heat of the light emitting diodes can also be achieved.
Description
Technical field
The utility model relates to Display Technique field, is specifically related to a kind of backlight module and display unit.
Background technology
Quantum dot has following characteristic: will be luminous when being subject to the stimulation of electricity or light (light producing such as light emitting diode), produce light and pure color, and its light color of sending is determined by composition material and size, the shape of quantum dot.Along with the development of technology of quantum dots, because it has unrivaled euchroic coloured silk and wider colour gamut display capabilities, as adopted lcd technology, but its color demonstrates one's ability, same Organic Light Emitting Diode is more or less the same.In addition, existing technology of quantum dots is combined with lcd technology conventionally, and what in large, medium and small size, all develop is fairly perfect, can put into fast in the application in market, so it is also had an optimistic view of by insider always.
Existing backlight module, as shown in Figure 1, comprise blue LED 1, the second reflecting plate 4, LGP 3, be arranged on the quantum dot film 5 of described LGP 3 upsides and be positioned at the blooming piece 7 of quantum dot film 5 upsides, quantum dot film 5 can be realized the light that blue LED 1 sends and be converted into redness and green.According to the principle of Conversion of Energy, there is no, under the participation of extraneous energy, to only have high level to transform to low-lying level, so the blue light that blue LED 1 is sent is converted into ruddiness and green glow, the three primary colours that realize display show.As quantum dot film 5 is arranged in blue LED 1, there is the problem that blue LED 1 light source cannot dispel the heat; As quantum dot film 5 being arranged on to the top of LGP 3, though can effectively solve the problem of heat radiation, realize blue light to effective conversion of ruddiness and green wavelength, but the size of quantum dot film 5 will be the same with the size of liquid crystal panel, so the problem of bringing quanta point material effectively not utilize.
In order to overcome the above problems, the utility model has been done useful improvement.
Utility model content
(1) technical problem that will solve
The purpose of this utility model be to provide a kind of can effectively utilize quanta point material, and can efficiently radiates heat, the backlight module reducing costs and display unit.
(2) technical scheme
The utility model is achieved through the following technical solutions: a kind of backlight module, comprise LGP and for this LGP provides the light emitting diode of light source, also comprise the first reflecting plate that is arranged on described LGP upside and the quantum dot film that is arranged on described the first reflecting plate upside; Described the first reflecting plate is provided with the loophole with array arrangement; Described quantum dot film is provided with the quantum dot with array arrangement; Described loophole and the corresponding setting one by one of described quantum dot.
Preferably, described light emitting diode is blue LED.
Wherein, described blue LED is arranged on the end of described LGP one side.
Further, described LGP downside is provided with the second reflecting plate.
Or described blue LED is arranged on described LGP bottom side; Described LGP downside is provided with the second reflecting plate.
Further, the light backlight by the first reflecting plate is positioned at described quantum dot inside at the hot spot of the upper surface of described quantum dot film.
Wherein, also comprise the diffusion sheet that is arranged on described quantum dot film upside.
Further, also comprise the blooming piece that is arranged on described diffusion sheet upside.
The utility model also provides a kind of display unit, comprises backlight module as above.
(3) beneficial effect
Compare with product with prior art, the utility model has the following advantages:
The process backlight of the backlight module that the utility model provides is arranged on the reflection of the first reflecting plate of LGP upside and finally by loophole, carries out outgoing, effectively assembles for spot light; The quantum dot of array distribution and loophole corresponding setting one by one, thus the utilization rate of raising quanta point material reduces costs, and can reach the technique effect that makes light emitting diode efficiently radiates heat.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing backlight module;
Fig. 2 is the structural representation of side-light backlight module of the present utility model;
Fig. 3 is the structural representation of down straight aphototropism mode set of the present utility model;
Fig. 4 is the structural representation of the first reflecting plate of the present utility model;
Fig. 5 is the structural representation of quantum dot film of the present utility model;
Fig. 6 is the position relationship schematic diagram of loophole of the present utility model and quantum dot.
In accompanying drawing, the component list of each label representative is as follows:
1-blue LED; 2-the first reflecting plate; 21-loophole; 3-LGP; 4-the second reflecting plate; 5-quantum dot film; 51-quantum dot; 6-diffusion sheet; 7-blooming piece.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is made a detailed explanation.
As shown in Figure 2, the present embodiment provides a kind of backlight module, comprises LGP 3, the light emitting diode of light source is provided and is arranged on the first reflecting plate 2 of described LGP 3 upsides and is arranged on the quantum dot film 5 of described the first reflecting plate 2 upsides for this LGP.Preferably, light emitting diode adopts blue LED 1.Quantum dot film 5 is arranged on described the first reflecting plate 2 upsides, rather than quantum dot film is arranged in light emitting diode, thereby effectively solves the heat dissipation problem of light emitting diode.As shown in Figure 3, described the first reflecting plate 2 is provided with the loophole 21 with array arrangement; As shown in Figure 4, described quantum dot film 5 is provided with the quantum dot 51 with array arrangement; Described loophole 21 and the corresponding setting one by one of described quantum dot 51.
Particularly, this backlight module can be set to side-light type or two kinds of backlight modes of straight-down negative.When selecting side-light backlight pattern, as shown in Figure 2, described blue LED 1 is arranged on the end of a side of described LGP 3, for LGP 3 provides light source; But while selecting downward back optical mode, as shown in Figure 3, described blue LED 1 is arranged on the bottom side of described LGP 3, and described blue LED 1 downside is also provided with the second reflecting plate 4.
The light backlight that described blue LED 1 sends is after LGP 3 and the second reflecting plate 4, then by first reflecting plate 2 the above loophole 21 outgoing; A part also can be reflected back LGP 3 via the first reflecting plate 2 without the light of outgoing, because reflecting plate 2 also has good reflex, LGP 3 has good transmission effect, so finally all can carry out outgoing through the loophole 21 of the first reflecting plate 2, loophole 21 can make light backlight effectively gather for spot light, then shows by quantum dot 51.The distribution of quantum dot 51 distributes according to the size of the some hot spot focusing on, and can effectively realize the utilization rate of quanta point material.
Wherein, as shown in Figure 5, from the light of loophole 21 outgoing, can directly enter quantum dot film 5, because quantum dot film 5 has certain thickness and has certain disperse function through the light of loophole 21 outgoing, in order to guarantee from the whole place that enters quantum dot 51 distributions of the light of loophole 21 outgoing, described quantum dot 51 correspondences are arranged on ray cast backlight to the facula position of described quantum dot film 5 upper surfaces, therefore be positioned at described quantum dot 51 inside by the light backlight of the first reflecting plate 2 at the hot spot of the upper surface of described quantum dot film 5.
Further, on described backlight module, also comprise the diffusion sheet 6 that is arranged on described quantum dot film 5 upsides.Diffusion sheet 6 can improve the uniform diffusion effect of distribution of light backlight, and can improve light penetration generation high brightness.
Further again, described backlight module also comprises the blooming piece 7 that is arranged on described diffusion sheet 6 upsides.This blooming piece 7 can comprise prism, diffusion barrier etc., has the effect that improves backlight module optical property.
The present embodiment also provides a kind of display unit, this display unit can be: any product or parts with Presentation Function such as mobile phone, panel computer, television set, display, notebook computer, DPF, navigator, comprise backlight module as above.The enforcement of this display unit can, referring to above-described embodiment, repeat part and repeat no more.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (9)
1. a backlight module, comprises LGP and for this LGP provides the light emitting diode of light source, it is characterized in that, also comprises the first reflecting plate that is arranged on described LGP upside and the quantum dot film that is arranged on described the first reflecting plate upside; Described the first reflecting plate is provided with the loophole with array arrangement; Described quantum dot film is provided with the quantum dot with array arrangement; Described loophole and the corresponding setting one by one of described quantum dot.
2. backlight module according to claim 1, is characterized in that, described light emitting diode is blue LED.
3. backlight module according to claim 2, is characterized in that, described blue LED is arranged on the end of described LGP one side.
4. backlight module according to claim 3, is characterized in that, described LGP downside is provided with the second reflecting plate.
5. backlight module according to claim 2, is characterized in that, described blue LED is arranged on the bottom side of described LGP; The downside of described blue LED is provided with the second reflecting plate.
6. according to the backlight module described in claim 1～5 any one, it is characterized in that, it is inner that the light backlight by the first reflecting plate is positioned at described quantum dot at the hot spot of the upper surface of described quantum dot film.
7. backlight module according to claim 6, is characterized in that, this backlight module also comprises the diffusion sheet that is arranged on described quantum dot film upside.
8. backlight module according to claim 7, is characterized in that, also comprises the blooming piece that is arranged on described diffusion sheet upside.
9. a display unit, is characterized in that, comprises the backlight module as described in claim 1～8 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420141772.2U CN203771205U (en) | 2014-03-26 | 2014-03-26 | Backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420141772.2U CN203771205U (en) | 2014-03-26 | 2014-03-26 | Backlight module and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203771205U true CN203771205U (en) | 2014-08-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420141772.2U Active CN203771205U (en) | 2014-03-26 | 2014-03-26 | Backlight module and display device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203771205U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104950518A (en) * | 2015-07-21 | 2015-09-30 | 京东方科技集团股份有限公司 | Quantum dot film, preparation method thereof, and backlight module |
| CN105068315A (en) * | 2015-09-01 | 2015-11-18 | 深圳Tcl新技术有限公司 | Blue light LED direct type backlight module and liquid crystal display screen |
| CN105759500A (en) * | 2016-03-16 | 2016-07-13 | 深圳Tcl新技术有限公司 | Quantum dot backlight module and liquid crystal television |
| CN106605308A (en) * | 2014-08-25 | 2017-04-26 | 康宁股份有限公司 | Sealed device and methods for making the same |
| CN106641872A (en) * | 2016-08-23 | 2017-05-10 | 友达光电股份有限公司 | Backlight module and manufacturing method thereof |
| WO2020056912A1 (en) * | 2018-09-19 | 2020-03-26 | 武汉华星光电技术有限公司 | Backlight module |
-
2014
- 2014-03-26 CN CN201420141772.2U patent/CN203771205U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106605308A (en) * | 2014-08-25 | 2017-04-26 | 康宁股份有限公司 | Sealed device and methods for making the same |
| CN104950518A (en) * | 2015-07-21 | 2015-09-30 | 京东方科技集团股份有限公司 | Quantum dot film, preparation method thereof, and backlight module |
| US10330849B2 (en) | 2015-07-21 | 2019-06-25 | Boe Technology Group Co., Ltd. | Quantum dot film, method for manufacturing the same and backlight module |
| CN105068315A (en) * | 2015-09-01 | 2015-11-18 | 深圳Tcl新技术有限公司 | Blue light LED direct type backlight module and liquid crystal display screen |
| WO2017036206A1 (en) * | 2015-09-01 | 2017-03-09 | 深圳Tcl新技术有限公司 | Blue light led direct-type backlight module and liquid crystal display screen |
| CN105068315B (en) * | 2015-09-01 | 2019-05-31 | 深圳Tcl新技术有限公司 | Blue-ray LED down straight aphototropism mode set and liquid crystal display |
| CN105759500A (en) * | 2016-03-16 | 2016-07-13 | 深圳Tcl新技术有限公司 | Quantum dot backlight module and liquid crystal television |
| WO2017156902A1 (en) * | 2016-03-16 | 2017-09-21 | 深圳Tcl新技术有限公司 | Quantum dot backlight module and liquid crystal television |
| CN106641872A (en) * | 2016-08-23 | 2017-05-10 | 友达光电股份有限公司 | Backlight module and manufacturing method thereof |
| CN106641872B (en) * | 2016-08-23 | 2019-03-05 | 友达光电股份有限公司 | Backlight module and its manufacturing method |
| WO2020056912A1 (en) * | 2018-09-19 | 2020-03-26 | 武汉华星光电技术有限公司 | Backlight module |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |