CN107132693A - A kind of quantum dot fluorescence screen - Google Patents
A kind of quantum dot fluorescence screen Download PDFInfo
- Publication number
- CN107132693A CN107132693A CN201710325314.2A CN201710325314A CN107132693A CN 107132693 A CN107132693 A CN 107132693A CN 201710325314 A CN201710325314 A CN 201710325314A CN 107132693 A CN107132693 A CN 107132693A
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- Prior art keywords
- quantum dot
- film
- liquid crystal
- backlight module
- quantum
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133614—Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Planar Illumination Modules (AREA)
Abstract
The present invention relates to a kind of quantum dot fluorescence screen, including frame and the liquid crystal module and backlight module that are fixedly installed in frame, the backlight module is arranged on the liquid crystal module back side；The backlight module includes micro-nano structure diffusion barrier, upper bright enhancement film, lower bright enhancement film, quantum dot composite diffusion film, light guide plate and the total reflection film set gradually from top to bottom；The light guide plate is taper type, and its larger one side is provided with blue violet light LED lamp bead bar, and a reflector plate is provided with the outside of the blue violet light LED lamp bead bar.The advantage of the invention is that：The invention enables final quantum dot fluorescent screen while colour gamut wide with quantum dot screen, diffusion and brightness enhancing optical function are also equipped with, i.e., whole display panel has broad colour gamut, and color representation power is good, improves the display performance of liquid crystal display panel.
Description
Technical field
The invention belongs to field of liquid crystal, more particularly to a kind of quantum dot fluorescence screen.
Background technology
The liquid crystal display panel of current main flow mainly has two kinds of backlight modes, and one kind is CCFL, and one kind is LED.CCFL's is excellent
Gesture is that color representation is good, and deficiency is that power consumption is higher；And LED advantage be small volume, it is low in energy consumption, can take into account frivolous and higher
Brightness, be disadvantageous in that color representation is poorer than CCFL.
In view of the above problems, people cause in research and development that colour gamut is wide, the quantum dot fluorescence screen that excitation is high, color representation power is good.
Through retrieval, the A of patent CN 105629578 disclose a kind of quantum dot fluorescence screen, including frame and are fixedly installed in frame
Liquid crystal module and backlight module, the backlight module be arranged on the liquid crystal module back side, the backlight module include quantum dot it is glimmering
Optical mode group, the diffusion barrier being arranged above quantum dot fluorescence module and the total reflection film being arranged at below quantum dot fluorescence module.
Quantum dot fluorescence film is added in liquid crystal display module by the present invention, and by blue-light LED chip excitation quantum point fluorescent film
Red green quantum dot, blue light is changed into white light to build white light backlight so that display panel has broader colour gamut,
Higher excitation, more preferable color representation power, and then improve the display performance of liquid crystal display panel.
But the quantum dot fluorescence screen of above-mentioned patent, the problem of still suffering from certain：Although quantum dot fluorescence screen possesses quantum dot
Material property, but do not possess the optical function of diffusion and blast.
The content of the invention
The technical problem to be solved in the present invention is to provide one kind while colour gamut wide with quantum dot screen, diffusion is also equipped with
With the quantum dot fluorescence screen of brightness enhancing optical function.
In order to solve the above technical problems, the technical scheme is that：A kind of quantum dot fluorescence screen, including frame and solid
Liquid crystal module and backlight module that Dingan County is loaded in frame, the backlight module are arranged on the liquid crystal module back side, and its innovative point exists
In：The backlight module includes micro-nano structure diffusion barrier, upper bright enhancement film, lower bright enhancement film, the quantum dot set gradually from top to bottom
Composite diffusion film, light guide plate and total reflection film；The light guide plate is taper type, and its larger one side is provided with blue violet light
A reflector plate is provided with the outside of LED lamp bead bar, the blue violet light LED lamp bead bar；The quantum dot composite diffusion film includes first
Obstruct membrane, the second Obstruct membrane and quanta polymer glue-line, the quanta polymer glue-line make first Obstruct membrane and institute
State the second barrier UF membrane；First Obstruct membrane include set gradually from top to bottom the first optical micro/nano structure sheaf, first
PET film and the first barrier layer, the second barrier layer, the 2nd PET that second Obstruct membrane includes setting gradually from top to bottom are thin
Film and the second optical micro/nano structure sheaf.
Further, the quanta polymer glue-line is to be mingled in by quanta point material in polymer latex main body, described
Quanta point material includes red quantum dot, green quantum dot and blue quantum dot, and the launch wavelength of red light quantum point is 620nm
~660nm, half maximum all-wave is less than 45nm, and the launch wavelength of green light quantum point is 520nm~540nm, half maximum all-wave
Less than 45nm, the launch wavelength of blue light quantum point is 435nm~450nm, and half maximum all-wave is less than 45nm.
Further, the micro-nano structure diffusion barrier is by ultraviolet its surface that is molded over to prepare micro-nano by PET film
Transparent, UV absorbent is added in structure, and glue used in ultraviolet shaping.
Further, the transparent, UV absorbent selects U.S. Ampecet, and the trade mark is transparent for CrystalClear's
Ultra-violet absorber.
The advantage of the invention is that：
（1）Quantum dot fluorescence screen of the present invention, wherein, the diffusion barrier of backlight module changes conventional diffusion film for micro-nano structure diffusion barrier,
The small concaveconvex structure in surface plays the diffusion effect of light；Meanwhile, change traditional quantum dot fluorescent film for quantum dot composite diffusion film,
Increase optical micro/nano structure sheaf respectively on the first Obstruct membrane and the second Obstruct membrane, the optical micro/nano structure sheaf is adjustable
While diffusion, the light transmittance of incident light will not be reduced again；Meanwhile, the quanta polymer glue-line between two Obstruct membranes increases
The barrier of membrane structure is added, has reduced the failure limit of quanta point material, help raising film overall performance, and then cause most
Whole quantum dot fluorescence screen is also equipped with diffusion and brightness enhancing optical function while colour gamut wide with quantum dot screen, i.e., whole display
Panel has broad colour gamut, and color representation power is good, improves the display performance of liquid crystal display panel；
（2）Quantum dot fluorescence screen of the present invention, wherein, quanta polymer glue-line is by red quantum dot, green quantum dot and indigo plant
Color quantum dot is mingled in polymer latex main body, and RGB quantum dot, which is stimulated, sends corresponding RGB light, recreates
The high-quality white light of composite wavelength；
（3）Quantum dot fluorescence screen of the present invention, wherein, micro-nano structure diffusion barrier has PET film surface to pass through ultraviolet shaping manufacture
Micro-nano structure, the soft effect of homogenizing is further functioned as to light；And corresponding ultraviolet shaping glue is inhaled added with transparent, UV
Agent is received, the initial illumination light of edge leakage and unnecessary ultraviolet wavelength is sponged.
Brief description of the drawings
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
Fig. 1 is the structural representation of quantum dot fluorescence screen of the present invention.
Fig. 2 is the structural representation of quantum dot composite diffusion film in Fig. 1.
Embodiment
The following examples can make professional and technical personnel that the present invention is more fully understood, but therefore not send out this
It is bright to be limited among described scope of embodiments.
Embodiment
The present embodiment quantum dot fluorescence screen, as shown in figure 1, including frame 1 and the liquid crystal mould being fixedly installed in frame
Group 2 and backlight module 3.
Backlight module 3 is arranged on the back side of liquid crystal module 2, and backlight module 3 includes the micro-nano structure set gradually from top to bottom
Diffusion barrier 31, upper bright enhancement film 32, lower bright enhancement film 33, quantum dot composite diffusion film 34, light guide plate 35 and total reflection film 36；On add lustre to
Film 32, lower bright enhancement film 33 play the horizontal and vertical unnecessary light more than visual angle of pinching in module, strong to increase actual illumination
The effect of degree；Total reflection film 36 has to be propagated by light, illuminating ray is concentrated on the effect of upper surface.
Quantum dot composite diffusion film 34 includes the first Obstruct membrane 341, the second Obstruct membrane 342 and quanta polymer glue-line
343, quanta polymer glue-line 343 makes first Obstruct membrane 341 be separated with second Obstruct membrane 342；First Obstruct membrane
341 the first optical micro/nano structure sheaf 3411, the first PET film 3412 and the first barrier layers including setting gradually from top to bottom
3413, the second Obstruct membrane 342 includes the second barrier layer 3423, the second PET film 3422 and second set gradually from top to bottom
Optical micro/nano structure sheaf 3421.
In the present embodiment, the thickness of quantum dot composite diffusion film 34 is between 200~300 μm, and it mainly includes red
Luminescence unit, green emitting unit and blue-light-emitting unit, emitting red light unit include red quantum dot, green emitting unit bag
Green quantum dot is included, blue-light-emitting unit includes blue quantum dot, and the launch wavelength of red light quantum point is 620nm~660nm,
Half maximum all-wave is less than 45nm, and the launch wavelength of green light quantum point is 520nm~540nm, and half maximum all-wave is less than 45nm,
The launch wavelength of blue light quantum point is 435nm~450nm, and half maximum all-wave is less than 45nm.
The present embodiment quantum dot composite diffusion film 34 is mainly by above-mentioned red quantum dot, green quantum dot, blue quantum
Point and polymer latex are well mixed by a certain percentage, obtain quantum dot resin combination, form quantum dot compound adhesive, then will amount
Son point compound adhesive, which is filled, to be clipped between the first Obstruct membrane 341 and the second Obstruct membrane 342, forms quantum dot composite diffusion film 34.
In the present embodiment, light guide plate 35 is taper type, and its larger one side is provided with blue violet light LED lamp bead bar 351,
The outside of the blue violet light LED lamp bead bar 351 is provided with a reflector plate 352；LED lamp bead bar sends the royal purple less than 400nm wavelength
Light, by the uniform irradiation of light guide plate 35 on quantum dot composite diffusion film 34, the RGB quantum in quanta point material therein
Point, which is stimulated, sends corresponding RGB light, recreates the high quality white light of composite wavelength.
The superiors' micro-nano structure diffusion barrier 31 is by micro-nano structure of the PET film surface by ultraviolet shaping manufacture, to light
Further function as the soft effect of homogenizing；And corresponding ultraviolet shaping glue is added with transparent, UV absorbent, sponges edge
The initial illumination light of leakage and unnecessary ultraviolet wavelength.
By the improvement to quantum dot fluorescence screen structure, the present embodiment quantum dot fluorescence screen causes whole display panel to have
Broad colour gamut, color representation power is good, improves the display performance of liquid crystal display panel, i.e. light efficiency and improves 20~40%, colour developing refers to
Number more than 85.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The skill of the industry
Art personnel are it should be appreciated that the present invention is not limited to the above embodiments, and described in above-described embodiment and specification is explanation
The principle of the present invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these
Changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and
Its equivalent thereof.
Claims (4)
1. a kind of quantum dot fluorescence screen, including frame and the liquid crystal module and backlight module that are fixedly installed in frame, it is described
Backlight module is arranged on the liquid crystal module back side, it is characterised in that：The backlight module includes the micro-nano set gradually from top to bottom
Structure diffusion barrier, upper bright enhancement film, lower bright enhancement film, quantum dot composite diffusion film, light guide plate and total reflection film；The light guide plate is cone
Platform shape, and its larger one side is provided with blue violet light LED lamp bead bar, it is anti-to be provided with one on the outside of the blue violet light LED lamp bead bar
Penetrate piece；The quantum dot composite diffusion film includes the first Obstruct membrane, the second Obstruct membrane and quanta polymer glue-line, the quantum
Point polymeric adhesive layer makes first Obstruct membrane obstruct UF membrane with described second；First Obstruct membrane include from top to bottom according to
The first optical micro/nano structure sheaf, the first PET film and the first barrier layer of secondary setting, second Obstruct membrane are included from top to bottom
The second barrier layer, the second PET film and the second optical micro/nano structure sheaf set gradually.
2. quantum dot fluorescence screen according to claim 1, it is characterised in that：The quanta polymer glue-line is by quantum
Point material is mingled in polymer latex main body, and the quanta point material includes red quantum dot, green quantum dot and blue quantum
Point, and the launch wavelength of red light quantum point is 620nm~660nm, half maximum all-wave is less than 45nm, the transmitting of green light quantum point
Wavelength is 520nm~540nm, and half maximum all-wave is less than 45nm, and the launch wavelength of blue light quantum point is 435nm~450nm, half
Maximum all-wave is less than 45nm.
3. quantum dot fluorescence screen according to claim 1, it is characterised in that：The micro-nano structure diffusion barrier is thin by PET
Film prepares micro-nano structure by ultraviolet its surface that is molded over, and transparent, UV is added in the glue used in ultraviolet shaping absorbs
Agent.
4. quantum dot fluorescence screen according to claim 3, it is characterised in that：The transparent, UV absorbent selects the U.S.
Ampecet, the trade mark is CrystalClear transparent, UV absorbent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710325314.2A CN107132693A (en) | 2017-05-10 | 2017-05-10 | A kind of quantum dot fluorescence screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710325314.2A CN107132693A (en) | 2017-05-10 | 2017-05-10 | A kind of quantum dot fluorescence screen |
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| CN107132693A true CN107132693A (en) | 2017-09-05 |
Family
ID=59731598
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710325314.2A Pending CN107132693A (en) | 2017-05-10 | 2017-05-10 | A kind of quantum dot fluorescence screen |
Country Status (1)
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Cited By (4)
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| CN108196336A (en) * | 2018-01-02 | 2018-06-22 | 京东方科技集团股份有限公司 | A kind of light guide plate, backlight module, display device |
| CN108490682A (en) * | 2018-02-24 | 2018-09-04 | 惠州市华星光电技术有限公司 | A kind of optical diaphragm, backlight module and display device |
| CN112824960A (en) * | 2019-11-20 | 2021-05-21 | 三星电子株式会社 | Backlight unit and display device including the same |
| CN112859432A (en) * | 2019-11-12 | 2021-05-28 | 京东方科技集团股份有限公司 | Display module, device and manufacturing method thereof, and information processing method and device |
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