CN207718119U - A kind of quantum dot lens, lamp bar and backlight module - Google Patents
A kind of quantum dot lens, lamp bar and backlight module Download PDFInfo
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- CN207718119U CN207718119U CN201820129843.5U CN201820129843U CN207718119U CN 207718119 U CN207718119 U CN 207718119U CN 201820129843 U CN201820129843 U CN 201820129843U CN 207718119 U CN207718119 U CN 207718119U
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Abstract
The utility model is related to a kind of quantum dot lens, including lens body, it raises up to form outgoing curved surface at the top of lens body, lens body bottom level is distributed to form bottom surface, bottom surface center is recessed inwardly to form the spreading grooves of taper, the first filled cavity and the second filled cavity are equipped at intervals in the lens body, the connector to connect with the first filled cavity, the second filled cavity bottom port is respectively equipped on bottom surface, filled with green quantum material in first filled cavity, it is filled with red quantum material in second filled cavity, is sealed by packaging plastic at connector；Quanta point material is sealed in lens, the leakage of heavy metal cadmium in quanta point material can be prevented, and simple for process, production cost is low；Green quanta point material and red quantum dot material are injected separately into the first filled cavity and the second filled cavity, in addition the problem of quantum dot being effectively prevent to reunite, can solve the problems, such as to react to each other after the mixing of a variety of quanta point materials destroy the structure of quanta point material, cause light decay.The application also provides a kind of lamp bar and backlight module.
Description
Technical field
The utility model is related to LED backlight devices field, it is related specifically to a kind of quantum dot lens, lamp bar and backlight mould
Group.
Background technology
Since 21st century, back light source technique is quickly grown, and constantly has new technology, new product to release, LED backlight
Have become the market mainstream.The form of currently used LED backlight generally use blue chip excitation YAG yellow fluorescent powders, but
It is because lacking red color light component in backlight, color gamut value can only reach NTSC 65%~72%.In order to further increase color gamut value, skill
Art personnel are generally in such a way that blue chip excites red light fluorescent powder, green light fluorescent powder simultaneously, but due to current fluorescent powder
Half-wave is wide, therefore even if in this way if the color gamut value of backlight can only be promoted to NTSC 80% or so.Meanwhile
The launching efficiency of existing fluorescent powder is low, to realize that high colour gamut white light needs a large amount of fluorescent powders, leads to fluorescent powder in LED encapsulation process
Concentration (fluorescent powder account for encapsulation glue ratio) it is very high, to substantially increase packaging operation difficulty and product not
Yield.
In recent years, quanta point material is gradually taken seriously, and especially quantum dot fluorescence powder has spectrum with size adjustable, hair
Peak half-wave width is penetrated, a series of unique optical properties such as Stokes shift is big, launching efficiency is high, by LED backlight industry
Extensive concern.Currently, quantum dot fluorescence powder realizes that the mode of high colour gamut white light mainly has：(1) quantum dot fluorescence powder is made
Optical film material is filled in light guide plate or is affixed in LCD screen, is excited by blue light or ultraviolet light backlight lamp bead, obtains high color
Domain white light；(2) glass tube is made in quantum dot fluorescence powder, is placed in screen side, excited by blue light or ultraviolet light backlight lamp bead,
Obtain high colour gamut white light.Both realization methods have Related product release, such as the quantum dot film TV of TCL.But this two
The complex process of kind realization method, phototranstormation efficiency is low, cost is higher, is difficult to realize extensive industrialization.
Invention content
The technical problems to be solved in the utility model is：A kind of quantum dot lens, lamp bar and backlight module are provided, using new
The lens arrangement of type, quanta point material and lens are combined, and are solved the above problems.
The technical solution of the utility model is：A kind of quantum dot lens, including lens body, lens body top are upward convex
It rising and forms outgoing curved surface, lens body bottom level is distributed to form bottom surface, and bottom surface center is recessed inwardly to form the spreading grooves of taper,
It is equipped at intervals with the first filled cavity and the second filled cavity in the lens body, is respectively equipped on bottom surface and the first filled cavity, second
The connector that filled cavity bottom port connects is filled out filled with green quanta point material in the first filled cavity in the second filled cavity
Filled with red quantum dot material, sealed by packaging plastic at connector；Quanta point material is sealed in lens, quantum can be prevented
The leakage of heavy metal cadmium in point material, and it is simple for process, production cost is low；By green quanta point material and red quantum dot material
In addition the problem of being injected separately into the first filled cavity and the second filled cavity, quantum dot being effectively prevent to reunite can solve more
It reacts to each other after kind quanta point material mixing and destroys the structure of quanta point material, causes the problem of light decay.
Further, the green quanta point material is green quantum dot solution or green quantum dot fluorescent powder, described red
Color quanta point material is red quantum dot solution or red quantum dot fluorescent powder.
Further, first filled cavity, the second filled cavity are in hemisphere planar.
Further, a kind of lamp bar is also provided, the lens of substrate, LED lamp bead and the filling of above-mentioned quantum dot solution are included, if
Dry LED lamp bead interval weldering is affixed on substrate, and the spreading grooves of lens body are placed on above LED lamp bead, and the bottom surface of lens body is equipped with
Several socles, socle are bonded and fixed on substrate.
Further, the chip of the LED lamp bead is blue chip or purple light chip, and chip emission wavelength is 380mm-
470mm。
Preferably, the substrate is PCB substrate or aluminum substrate
Further, a kind of backlight module, including rear shell, reflector plate, diffusion cover piece and above-mentioned lamp bar, the lamp are also provided
Item is fixed in rear shell, and reflector plate is covered on the substrate of lamp bar, and reflector plate corresponds to lens body position and is equipped with through-hole, lens
Ontology is set to the top of reflector plate place plane through the through-hole, and diffusion cover piece is set to above lens body, lens body
There are gaps between top and diffusion cover piece.
Further, the edge of the diffusion cover piece is supported by the edge upper end of rear shell, diffusion cover piece and reflection
The fore-set being used to support in the middle part of diffusion cover piece is equipped between piece.
Further, the diffusion cover piece is diffuser plate, diffusion barrier, brightness enhancement film and/or composite membrane.
The utility model has the beneficial effects that：Quanta point material is sealed in lens, weight in quanta point material can be prevented
The leakage of cadmium metal, and it is simple for process, production cost is low；Green quanta point material is injected separately into red quantum dot material
In first filled cavity and the second filled cavity, the problem of quantum dot being effectively prevent to reunite, a variety of quantum dot materials in addition can be solved
It reacts to each other after material mixing and destroys the structure of quanta point material, causes the problem of light decay.
Description of the drawings
Fig. 1 is lens body cross-sectional view；
Fig. 2 is lamp bar structural schematic diagram；
Fig. 3 is the parts Fig. 2 a enlarged diagrams；
Fig. 4 is backlight module fractionation structural representation.
Specific implementation mode
With reference to the accompanying drawings of the specification and embodiment the utility model is described in further detail.
Embodiment：As shown in Figures 1 to 4, a kind of quantum dot lens, including lens body 1,1 top of lens body is upwards
Outgoing curved surface is convexed to form, 1 bottom level of lens body is distributed to form bottom surface, and bottom surface center is recessed inwardly to form the diffusion of taper
Slot 2 is equipped at intervals with hemisphere planar the first filled cavity 3 and the second filled cavity 4 in the lens body 1, be respectively equipped on bottom surface with
The connector 5 that first filled cavity 3,4 bottom port of the second filled cavity connect, filled with green quantum dot in the first filled cavity 3
Material is filled with red quantum dot material in the second filled cavity 4, is sealed by packaging plastic at connector 5.
A kind of lamp bar 10 includes the lens of substrate 11, LED lamp bead 12 and the upper quantum dot solution filling, several LED light
The weldering of the interval of pearl 12 is affixed on substrate 11, and the spreading grooves 2 of lens body 1 are placed on 12 top of LED lamp beads, and the bottom surface of lens body 1 is set
There are several socles 6, socle 6 to be bonded and fixed on substrate.
A kind of backlight module, including rear shell 21, reflector plate 22, diffusion cover piece 23 and above-mentioned lamp bar 10, the lamp bar 10 are solid
Surely it is set in rear shell 21, reflector plate 22 is covered on the substrate 11 of lamp bar 10, and reflector plate 22, which corresponds to 1 position of lens body and is equipped with, to be led to
Hole, lens body 1 are set to the top of 22 place plane of reflector plate through the through-hole, and diffusion cover piece 23 is set in lens body 1
Side, there are the sides that gap, the edge for spreading cover piece 23 pass through rear shell 21 between the top and diffusion cover piece 23 of lens body 1
Edge upper end is supported, and spreads the fore-set 24 for being equipped between cover piece 23 and reflector plate 22 and being used to support 23 middle part of diffusion cover piece.
In above-described embodiment, the green quanta point material is green quantum dot solution or green quantum dot fluorescent powder, institute
It is red quantum dot solution or red quantum dot fluorescent powder to state red quantum dot material；The chip of the LED lamp beads is blue light core
Piece or purple light chip, chip emission wavelength are 380mm-470mm；The substrate is PCB substrate or aluminum substrate；The diffusion cover piece
For diffuser plate, diffusion barrier, brightness enhancement film and/or composite membrane.
The assembling process of the present embodiment：Several LED lamp beads are welded according to default pad locations on substrate using tin cream,
Each LED lamp bead is correspondingly arranged a lens, using UV glue isocolloid by the socle and substrate bonding of lens body, makes diffusion
Slot is located at the surface of LED lamp bead, completes the manufacture of lamp bar；Lamp bar is fixed in rear shell using screw, covers reflector plate,
So that lens is run through the through-hole that reflector plate is reserved, several fore-sets are set on reflector plate, then cover the diffuser caps such as diffuser plate, diffusion barrier
Part completes the assembly of backlight module.
The utility model has the beneficial effects that：Quanta point material is sealed in lens, weight in quanta point material can be prevented
The leakage of cadmium metal, and it is simple for process, production cost is low；Green quanta point material is injected separately into red quantum dot material
In first filled cavity and the second filled cavity, the problem of quantum dot being effectively prevent to reunite, a variety of quantum dot materials in addition can be solved
It reacts to each other after material mixing and destroys the structure of quanta point material, causes the problem of light decay.
The foregoing is merely the better embodiment of the utility model, the utility model is not limited to above-mentioned embodiment party
Formula, there may be the structural modifications that part is small in implementation process, if various changes or modifications to the utility model are not
It is detached from the basic principle and range of the utility model, and is belonged within the scope of the claims and equivalents of the utility model,
Then the utility model is also intended to include these modification and variations.
Claims (9)
1. a kind of quantum dot lens, including lens body (1), lens body (1) top raises up to form outgoing curved surface, lens
Ontology (1) bottom level is distributed to form bottom surface, and bottom surface center is recessed inwardly to form spreading grooves (2), it is characterised in that：The lens
The first filled cavity (3) and the second filled cavity (4) are equipped at intervals in ontology (1), be respectively equipped on bottom surface with the first filled cavity (3),
The connector (5) that second filled cavity (4) bottom port connects, filled with green quanta point material in the first filled cavity (3), the
Red quantum dot material is filled in two filled cavities (4), connector is sealed at (5) by packaging plastic.
2. quantum dot lens according to claim 1, it is characterised in that：The green quanta point material is that green quantum dot is molten
Liquid or green quantum dot fluorescent powder, the red quantum dot material are red quantum dot solution or red quantum dot fluorescent powder.
3. quantum dot lens according to claim 1, it is characterised in that：First filled cavity (3), the second filled cavity (4)
In hemisphere planar.
4. a kind of any one of lamp bar (10), including substrate (11), LED lamp bead (12) and the claim 1-3 quanta point material
The lens of filling, it is characterised in that：The weldering of several LED lamp bead (12) intervals is affixed on substrate (11), the spreading grooves of lens body (1)
(2) it is placed on above LED lamp bead (12), the bottom surface of lens body (1) is equipped with several socles (6), and socle (6) is bonded and fixed to substrate
On.
5. lamp bar according to claim 4, it is characterised in that：The chip of the LED lamp bead (12) is blue chip or purple light
Chip, chip emission wavelength are 380mm-470mm.
6. lamp bar according to claim 4, it is characterised in that：The substrate (11) is PCB substrate or aluminum substrate.
7. a kind of backlight module, including lamp bar described in rear shell (21), reflector plate (22), diffusion cover piece (23) and claim 4
(10), it is characterised in that：The lamp bar (10) is fixed in rear shell (21), and reflector plate (22) is covered on the substrate of lamp bar (10)
(11) on, corresponding lens body (1) position of reflector plate (22) is equipped with through-hole, and lens body (1) is set to reflection through the through-hole
The top of plane where piece (22), diffusion cover piece (23) are set to above lens body (1), the top of lens body (1) and diffusion
There are gaps between cover piece (23).
8. backlight module according to claim 7, it is characterised in that：The edge of the diffusion cover piece (23) passes through rear shell (21)
Edge upper end be supported, be equipped with to be used to support between diffusion cover piece (23) and reflector plate (22) and spread in the middle part of cover piece (23)
Fore-set (24).
9. backlight module according to claim 7, it is characterised in that：The diffusion cover piece (23) is diffuser plate, diffusion barrier, increasing
Bright film and/or composite membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820129843.5U CN207718119U (en) | 2018-01-24 | 2018-01-24 | A kind of quantum dot lens, lamp bar and backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820129843.5U CN207718119U (en) | 2018-01-24 | 2018-01-24 | A kind of quantum dot lens, lamp bar and backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207718119U true CN207718119U (en) | 2018-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820129843.5U Active CN207718119U (en) | 2018-01-24 | 2018-01-24 | A kind of quantum dot lens, lamp bar and backlight module |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110346972A (en) * | 2019-06-27 | 2019-10-18 | 惠州市华星光电技术有限公司 | Diffuser plate and its manufacturing method, backlight module, display device |
| CN111336413A (en) * | 2020-03-28 | 2020-06-26 | 江苏恒烽显示科技有限公司 | Novel lamp pearl and have lamp strip and backlight unit of novel lamp pearl |
| CN112485944A (en) * | 2020-11-27 | 2021-03-12 | 广东长虹电子有限公司 | Novel Mini-LED quantum dot structure backlight module for liquid crystal display television |
| CN112485945A (en) * | 2020-11-27 | 2021-03-12 | 广东长虹电子有限公司 | Novel quantum dot structure backlight module for liquid crystal display television |
| CN115273687A (en) * | 2022-08-26 | 2022-11-01 | 深圳市铭濠科技有限公司 | Manufacturing method of LED screen and LED screen |
-
2018
- 2018-01-24 CN CN201820129843.5U patent/CN207718119U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110346972A (en) * | 2019-06-27 | 2019-10-18 | 惠州市华星光电技术有限公司 | Diffuser plate and its manufacturing method, backlight module, display device |
| CN111336413A (en) * | 2020-03-28 | 2020-06-26 | 江苏恒烽显示科技有限公司 | Novel lamp pearl and have lamp strip and backlight unit of novel lamp pearl |
| CN112485944A (en) * | 2020-11-27 | 2021-03-12 | 广东长虹电子有限公司 | Novel Mini-LED quantum dot structure backlight module for liquid crystal display television |
| CN112485945A (en) * | 2020-11-27 | 2021-03-12 | 广东长虹电子有限公司 | Novel quantum dot structure backlight module for liquid crystal display television |
| CN115273687A (en) * | 2022-08-26 | 2022-11-01 | 深圳市铭濠科技有限公司 | Manufacturing method of LED screen and LED screen |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220113 Address after: 223999 north side of wulijiang Road, Sihong Economic Development Zone, Suqian City, Jiangsu Province Patentee after: Jiangsu Hengfeng Display Technology Co.,Ltd. Address before: 510800 2, building B, No. 1, Xianke 1st Road, Huadong Town, Huadu District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU HONGLI ZHIXIAN TECHNOLOGY Co.,Ltd. |