CN206946155U - A kind of array laser quantum dot rod backlight display module device - Google Patents
A kind of array laser quantum dot rod backlight display module device Download PDFInfo
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- CN206946155U CN206946155U CN201720672874.0U CN201720672874U CN206946155U CN 206946155 U CN206946155 U CN 206946155U CN 201720672874 U CN201720672874 U CN 201720672874U CN 206946155 U CN206946155 U CN 206946155U
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- quantum dot
- dot rod
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Abstract
It the utility model is related to a kind of array laser quantum dot rod backlight display module device.The utility model provides a kind of array laser quantum dot rod backlight display module device, including at least one excitation spot light（201）, quantum dot rod（101）And liquid crystal display panel（503）, it is characterised in that;The quantum dot rod（101）Form array, described excitation spot light（201）For blue laser light source, the blue laser light source and quantum dot rod（101）Optically coupled part coupling, and correspond, in the plane rectangular array formula arrangement parallel to display panel.The promising scattering particles for improving brightness and setting of doping inside described quantum dot rod, and gradient distribution is deferred in axial direction of the described scattering particles along quantum dot rod.The utility model can control brightness and the power consumption of the wavelength and laser of light source, and can control the length of quantum dot rod and the size of display, thus be preferable laser backlight and display device.
Description
Technical field
Laser display and lighting field are the utility model is related to, more particularly to a kind of array laser quantum dot rod backlight shows
Show die set.
Background technology
With the development of social science and technology, optical performance requirements more and more higher of the people to display.It is glimmering from early stage
Light lamp tube is the display of the LED backlight of the display of backlight till now.Show from computer, to mobile phone, to giant-screen, arrive simultaneously
Home theater, the development of Display Technique is embodied invariably.But any technology has its limitation, although LED today is into city
Focus, greatly popularized, but some aspects are there is also development bottleneck, particularly in brightness, stability and colour gamut side
Face.Therefore people attempt to develop new technology, and to improve existing product, and laser is happened at that time as light source.
Laser is exactly colour gamut, long-life, high brightness, relatively low energy consumption of its broadness the characteristics of as light source, its is maximum,
With the unrivaled innate advantage of conventional light source, therefore it is described as after white and black displays, colored display and numerical monitor
Forth generation " successor ".If it can directly make backlight using laser stability, will undoubtedly to give in terms of brightness in colour gamut
Existing one very big promotion of Display Technique.But it is limited to the cost of lasing light emitter, radiate, dimensional structure etc. is a series of to ask
Topic, in the market is still without the product that backlight is really made of pure laser so far.
Comparatively speaking, quanta point material but has very big advantage.It is advantageous that the photoelectric characteristic of quantum dot is very only
Spy, it is stimulated by light, according to the diameter of quantum dot, can send the very pure high quality list of various different colours
Coloured light.It is the different sizes in excitation quantum point structure by ethereal blue light source and quantum dot is applied to the cardinal principle of Display Technique
Quantum dot crystal, so as to discharge pure feux rouges and pure green glow, and projected with remaining pure blue light above imaging system,
Power spectrum concentration, very pure high quality red green monochromatic light, complete beyond tradition LED can be thus sent by quantum dot
The light-emitting phosphor characteristic of backlight, realize more preferably imaged color.
Technology of quantum dots makes color distincter with color gamut performance can be substantially improved in backlight, technology of quantum dots by
In its photoelectric characteristic uniqueness so being used widely, and gradually obtain liquid crystal manufacturer and the generally accreditation of user.But it swashs
Light emitting source is blue-ray LED, and because LED is broad-spectrum light source, the spectrum of its light source is very wide, it is impossible to plays the excellent of quantum dot well
Gesture, hence it is imperative that the excitation source that a kind of color is purer, so that the colour gamut for the wide spectrum that quantum dot is formed is wider, color
It is purer.
Utility model content
Technical problem to be solved：
Technology of quantum dots makes color distincter with color gamut performance can be substantially improved in backlight, but its exciting light
Source is blue-ray LED, and because LED is broad-spectrum light source, the spectrum of its light source is very wide, it is impossible to plays the advantage of quantum dot well.
Technical scheme：
The purpose of this utility model is that the quantum dot fluorescence of high brightness is excited by using the LASER Light Source of high brightness, and
The backlight display module of quantum dot rod composition random length and width is highlighted using array.This had both met outdoor highlight degree and shown
The requirement shown, also by quantum dot excite more fully play its discharge pure color function, reduce use pure LASER Light Source system
The complexity and cost of system, brightness and the color of backlight display system are improved with reference to high light laser and quantum dot rod features
Domain.
In view of the shortcomings of the prior art, the utility model provides a kind of array laser quantum dot rod backlight display module
Device, including at least one excitation spot light 201, quantum dot rod 101 and liquid crystal display panel 503,101 groups of the quantum dot rod
Into array, described excitation spot light 201 is blue laser light source, and the blue laser light source is with quantum dot rod 101 through optics
Coupling unit couples, and corresponds, in the plane rectangular array formula arrangement parallel to display panel.
Provided with backboard 401, the array of quantum dot rod 101 is laterally positioned in the center section of backboard 401, and the both sides of backboard 401 are provided with
Metallic support, respectively left metallic support 301 and right metallic support 302, the excitation spot light 201 are fixed on the metal branch
On frame.
Left metallic support 301 and right metallic support 302 encourage point light to encourage the array fixed support of spot light 201
The distributing order in source 201 is：If the left side of first row quantum dot rod 101 is corresponding with excitation spot light 201, then second row
The right side of quantum dot rod 101 will be corresponding with excitation spot light 201, and each quantum dot rod corresponds to unique excitation spot light
201, the following quantum dot rod 101 of second row will be arranged alternately with excitation spot light 201 by the distributing order.
Reflector 801, quantum dot rod 101, brightness enhancement film 501, even smooth film 502 and not are fixed on the backboard 401 successively
The liquid crystal display panel 503 at end.
The red green quantum dot 701 of doping and the scattering particles 601 of doping are provided with described quantum dot rod 101.
Compared with quantum dot 701, the size of the scattering particles 601 is more than quantum dot 701 and is less than the wavelength of visible ray.
The concentration of the doping scattering particles 601 is from the incidence end of the close excitation spot light 201 of quantum dot rod to quantum dot
The other end of rod 101 gradually increases.
The excitation axle center of spot light 201 and the axle center of quantum dot rod 101 are coaxial.
The excitation wave-length coverage of spot light 201 is 450nm-455 nm, and power is more than 1.5 watts, each excitation
The light source of spot light 201 with one it is heat sink radiating guiding gutter be connected, it is described excitation spot light 201 and quantum dot rod 101 for replace and
The distance between detaching structure, the array of quantum dot rod 101 can be adjusted, the spacing between corresponding excitation spot light 201
Adjust therewith.
The described lower end cambered surface plating reflectance coating 901 of quantum dot rod 101.
Beneficial effect：
The utility model highlights lasing light emitter using array, can not only control the wavelength of light source, but also can control
The brightness of lasing light emitter and power consumption.The utility model makes height using the quantum dot rod structure of array band scattering doping particle
Light laser effectively becomes highlighted area source, and so as to save light guide plate, structure greatly simplifies.The utility model array quantum dot
Rod, i.e. line source are spliced into uniform area light source.Because the size of quantum dot rod is controllable, arbitrary size size can be optionally combined into
Display backlight module.And the brightness of area source is determined by the quantity of lasing light emitter and quantum dot rod, it is thus possible to is met outdoor high
The requirement that brightness is shown.The utility model is used by controlling laser source wavelength, quantum dot-doped composition and concentration and scattering
The brightness of the concentration of grain and the quantity decision systems of quantum dot rod and colour gamut.
Brief description of the drawings
Fig. 1 is the overall structure of array laser quantum dot rod backlight module.
Fig. 2 is array laser quantum dot rod backlight module cross-sectional structure figure.
Fig. 3 is array laser quantum dot rod backlight module quantum dot rod scattering-in point design structure diagram.
Fig. 4 is array laser quantum dot rod backlight module quantum dot rod profile.
Embodiment
The utility model is described in detail below in conjunction with the accompanying drawings.
As shown in figure 1, Fig. 1 is the overall structure of array laser quantum dot rod backlight module, including at least one excitation
Spot light 201, quantum dot rod 101 and liquid crystal display device 503, the quantum dot rod 101 form array, described excitation point light
Source 201 is blue laser light source, and the blue laser light source couples with 101 optically coupled part of quantum dot rod, and one a pair
Should, in the plane rectangular array formula arrangement parallel to display panel.
Provided with backboard 401, the array of quantum dot rod 101 is laterally positioned in the center section of backboard 401, and the both sides of backboard 401 are provided with
Metallic support, respectively left metallic support 301 and right metallic support 302, the excitation spot light 201 are fixed on the metal branch
On frame.
The propagation path of above-mentioned array laser quantum dot rod back light module unit structure light is：Light is penetrated from excitation spot light 201
Go out, optically coupled lens, into quantum dot rod 101, red and green light and remaining indigo plant caused by laser excitation therebetween
Color laser is mixed into required white light, and the scattering through scattering center in quantum dot rod 101 causes more light from quantum dot rod 101
Radial direction, i.e., perpendicular to quantum dot rod 101 axis direction project.The planar light source being made up of array quantum dot rod 101 is straight
The area source as backlight module is connect as used in display.Because the diameter and arranging density of quantum dot rod 101 are controllable, plus excitation
The power adjustable of spot light 201, thus manufactured large area linear array area source, meets that outdoor highlight display requires.
Fig. 2 is Fig. 1 cross-sectional view, main to include what is be made up of array laser source and corresponding array quantum dot rod
Light source part and corresponding optical coupling part, reflector 801, quantum dot rod 101, blast are fixed on the backboard 401 successively
The liquid crystal display panel 503 of film 501, even smooth film 502 and end.The quantity of brightness enhancement film 501 needed for it is by the final institute of system
Brightness decision is needed, brightness can be improved by increasing the quantity of brightness enhancement film.
Fig. 3 is the core component of array laser quantum dot rod backlight module, special to improve the radially scattered of quantum dot rod
It is intended to adulterate scattering particles in quantum dot rod 101.Laser is incident by left or right-hand member, optically coupled lens, by laser coupled
Enter quantum dot rod 101, to ensure greatest optical coupling, lasing light emitter axle center, coupled lens axle center and the quantum dot rod heart are coaxial.
Quantum dot rod 101 presses the red green quantum dot 701 of finite concentration doping, and the scattering particles 601 of finite concentration doping,
Due to absorption of the quantum dot 701 to blue light, the laser intensity incident from excitation spot light 201 one end can be along quantum dot rod 101
Gradually decay its intensity to the other end, the quantum dot fluorescence excited accordingly also weakens therewith.A kind of method for making up be
Wherein adulterate appropriate scattering particles 601.Because the rod backlight module of laser quantum point 701 is final effectively bright by from quantum dot
The total light flux of the upper end of rod 101 outgoing determines, therefore the radially scattered of fluorescence produced by raising is crucial.Increase appropriate scattering
Particle 601 can effectively improve the radial direction light extraction efficiency of quantum dot rod, and this part is to the brightness contribution of final display
It is very big.Thus the Density Distribution of doping scattering particles 601 is not axially uniform that the concentration of the doping scattering particles 601 is
Gradually increased to the other end of quantum dot rod 101 by the incidence end of excitation spot light 201, that is to say, that if laser is incident from left side,
The right side scattering particles density of so quantum dot rod 101 is larger；If opposite laser is incident from the right side of quantum dot rod 101, then
The left side scattering particles density of quantum dot rod is larger.
For the uniformity of the light of back light system, left metallic support 301 and right metallic support 302 are designed with encouraging spot light
201, left metallic support 301 and right metallic support 302 encourage spot light 201 to encourage the array fixed support of spot light 201
Distributing order be：If the left side of first row quantum dot rod 101 is corresponding with excitation spot light 201, then the quantum of second row
The right side of point rod 101 will be corresponding with excitation spot light 201, and each quantum dot rod corresponds to unique excitation spot light 201, with
Lower quantum dot rod 101 will be arranged alternately with excitation spot light 201 by the rule.So due to uneven caused by the absorption of light
Uneven by both sides homogenizes so that whole back light system uniform in light emission.
Scattering particles 601 are compared to quantum dot 701, and its size is more than quantum dot and is less than the wavelength of visible ray, also
It is less than 400 nanometers.Scattering so to visible ray is most strong so that radially outgoing is most strong for visible ray.
Total brightness requirement of system is by the brightness decision eventually through liquid crystal display panel 503, therefore LASER Light Source 201
Final light efficiency by intervenient lasing light emitter coupled lens, the cross sectional dimensions i.e. diameter of quantum dot rod 101, quantum dot
Optical scatter concentration and distribution inside rod 101, the doping concentration and proportioning of red green quantum dot, and follow-up brightness enhancement film
Quantity, the light transmission efficiency of even smooth film and the light transmission efficiency of liquid crystal panel determine.
Fig. 4 is the profile of quantum dot rod 101.Due to being isotropism to exciting for quantum dot, and the final institute of display panel
Need to be only the light scattered out from quantum dot rod top, therefore the photo potential of area scattering must waste downwards.It is special to reclaim these light
Take quantum dot rod lower end cambered surface plating reflectance coating 901.Laser excitation obtains reflectance coating transmitting of the quantum fluorescence through bottom, most of to return
To radially, turn into useful light.Therefore the design of this reflectance coating is particularly important.Preferable reflecting material should have more than 98%
Reflection efficiency.
In the utility model, blue laser light source is made up of semiconductor laser light source.The wave-length coverage of blue laser light source
For 450nm-455 nm, power is more than 1.5 watts, for reduce irradiate for a long time may caused by temperature improve, blue laser light source
Special radiator structure is attached, its structure includes the common heat sink water conservancy diversion of air along laser module end direction from left to right
Groove forms.
The number and quantum dot rod of array laser light source is correspond, and its spacing is by between lasing light emitter and quantum dot rod
Optical coupling efficiency determines.The too near or too remote coupling that can all influence light, so the spacing between them needs to optimize.And this is most
Determined eventually by the brightness requirement of required backboard display system.
The distance between quantum dot rod array is adjustable.When backboard display system brightness requirement is high, between quantum dot rod
Spacing can reduce, and quantum dot rod diameter reduces, and the spacing between corresponding lasing light emitter is also required to adjust therewith, and vice versa.
The length of quantum dot rod is determined by the size of required display panel.The length of the quantum dot rod of big display size requirement
Degree is accordingly also grown.
Array quantum dot rod backlight module size can change at several cun between 65 cun of displays in Fig. 1.
The utility model design is extensible to be applied to square quantum dot block, or bar, can also be applied to circular and irregular
Figure back light system designs.
Although the utility model is disclosed as above with preferred embodiment, they are not for limiting the utility model
, it is any to be familiar with this those skilled in the art, in the spirit and scope for not departing from the utility model, it can make various changes or retouch from working as,
What therefore the scope of protection of the utility model should be defined by claims hereof protection domain is defined.
Claims (10)
1. a kind of array laser quantum dot rod backlight display module device, including at least one excitation spot light（201）, quantum
Point rod（101）And liquid crystal display panel（503）, it is characterised in that;The quantum dot rod（101）Form array, described excitation
Spot light（201）For blue laser light source, the blue laser light source and quantum dot rod（101）Optically coupled part coupling,
And correspond, in the plane rectangular array formula arrangement parallel to display panel.
2. array laser quantum dot rod backlight display module device as claimed in claim 1, it is characterised in that：Provided with backboard
（401）, quantum dot rod（101）Array is laterally positioned in backboard（401）Center section, backboard（401）Both sides are provided with metallic support,
Respectively left metallic support（301）With right metallic support（302）, the excitation spot light（201）It is fixed on the metallic support
On.
3. array laser quantum dot rod backlight display module device as claimed in claim 2, it is characterised in that：Left metal branch
Frame（301）With right metallic support（302）To encourage spot light（201）Array fixed support, and encourage spot light（201）Row
Cloth order be：If first row quantum dot rod（101）Left side be corresponding with excitation spot light（201）, then the quantum of second row
Point rod（101）Right side will be corresponding with excitation spot light（201）, each quantum dot rod correspond to it is unique one excitation spot light
（201）, the following quantum dot rod of second row（101）With encouraging spot light（201）It will be arranged alternately by the distributing order.
4. array laser quantum dot rod backlight display module device as claimed in claim 2, it is characterised in that：The backboard
（401）On successively fix reflector（801）, quantum dot rod（101）, brightness enhancement film（501）, even smooth film（502）And the liquid of end
LCD panel（503）.
5. the array laser quantum dot rod backlight display module device as described in claim 1-4 any claims, it is special
Sign is：Described quantum dot rod（101）The interior red green quantum dot for being provided with doping（701）With the scattering particles of doping（601）.
6. array laser quantum dot rod backlight display module device as claimed in claim 5, it is characterised in that：With quantum dot
（701）Compare, the scattering particles（601）Size be more than quantum dot（701）And less than the wavelength of visible ray.
7. array laser quantum dot rod backlight display module device as claimed in claim 5, it is characterised in that：The doping
Scattering particles（601）Concentration from quantum dot rod close to excitation spot light（201）Incidence end to quantum dot rod（101）The other end
Gradually increase.
8. the array laser quantum dot rod backlight display module device as described in claim 1-4,6-7 any claim,
It is characterized in that：The excitation spot light（201）Axle center and quantum dot rod（101）Axle center is coaxial.
9. the array laser quantum dot rod backlight display module device as described in claim 1-4,6-7 any claim,
It is characterized in that：The excitation spot light（201）Wave-length coverage is 450nm-455 nm, and power is each described more than 1.5 watts
Encourage spot light（201）It is connected with a heat sink radiating guiding gutter, the excitation spot light（201）With quantum dot rod（101）For
Replaceable and demountable structure, the quantum dot rod（101）The distance between array is adjustable, corresponding excitation spot light（201）
Between spacing it is also adjustable therewith.
10. the array laser quantum dot rod backlight display module device as described in claim 1-4,6-7 any claim,
It is characterized in that：Described quantum dot rod lower end cambered surface plating reflectance coating（901）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720672874.0U CN206946155U (en) | 2017-06-12 | 2017-06-12 | A kind of array laser quantum dot rod backlight display module device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720672874.0U CN206946155U (en) | 2017-06-12 | 2017-06-12 | A kind of array laser quantum dot rod backlight display module device |
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| Publication Number | Publication Date |
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| CN206946155U true CN206946155U (en) | 2018-01-30 |
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|---|---|---|---|
| CN201720672874.0U Withdrawn - After Issue CN206946155U (en) | 2017-06-12 | 2017-06-12 | A kind of array laser quantum dot rod backlight display module device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107238970A (en) * | 2017-06-12 | 2017-10-10 | 南京第五十五所技术开发有限公司 | A kind of array laser quantum dot rod backlight display module device |
-
2017
- 2017-06-12 CN CN201720672874.0U patent/CN206946155U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107238970A (en) * | 2017-06-12 | 2017-10-10 | 南京第五十五所技术开发有限公司 | A kind of array laser quantum dot rod backlight display module device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180130 Effective date of abandoning: 20230602 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180130 Effective date of abandoning: 20230602 |