CN110275238A - Quantum dot polaroid structure and liquid crystal display - Google Patents
Quantum dot polaroid structure and liquid crystal display Download PDFInfo
- Publication number
- CN110275238A CN110275238A CN201910546968.7A CN201910546968A CN110275238A CN 110275238 A CN110275238 A CN 110275238A CN 201910546968 A CN201910546968 A CN 201910546968A CN 110275238 A CN110275238 A CN 110275238A
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- Prior art keywords
- quantum dot
- light
- layer
- light emitting
- polaroid structure
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
-
- 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
- G02F1/13362—Illuminating devices providing polarized light, e.g. by converting a polarisation component into another one
-
- 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)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Planar Illumination Modules (AREA)
Abstract
The embodiment of the invention discloses a kind of quantum dot polaroid structure and liquid crystal displays.Quantum dot polaroid structure includes protective layer, the quantum dot light emitting layer on protective layer, the blu-ray reflection layer on quantum dot light emitting layer, the polarizing layer on blu-ray reflection layer.Liquid crystal display includes above-mentioned quantum dot polaroid structure.The present invention between quantum dot light emitting layer and polarizing layer by introducing one layer of blu-ray reflection layer with wavelength selectivity, some blue light is reflexed into quantum dot and excitation quantum dot light emitting layer shines again, it loops back and forth like this, improves the utilization rate of light, the display brightness of diaphragm can be improved.
Description
Technical field
The present invention relates to technical field of liquid crystal display, in particular to a kind of quantum dot polaroid structure and liquid crystal display.
Background technique
Existing quantum membrane technology is by the way that the white light of backlight is replaced with blue lamp, by the way that point light source is converted to face
Quantum dot film is excited to shine after light source, but often quantum dot film is directly compound with backlight or polaroid etc., will appear brightness
The problem of reduction, by be not for Journal of Sex Research discovery because the fluorescence quantum yield of quantum dot imitate it is low, but it is because simple
Quantum dot polaroid structure it is not high to the utilization rate of exciting light, repeatedly excite quantum dot light emitting layer (QD Layer) can be effective
Improve its brightness.
Therefore, it is necessory to develop a kind of novel quantum dot polaroid structure, to overcome defect in the prior art.
Summary of the invention
In view of this, it is an object of the present invention to provide a kind of quantum dot polaroid structure, it can be anti-by some blue light
It is emitted back towards quantum dot light emitting layer, reaches repeatedly excitation quantum dot light emitting layer, improves the purpose of diaphragm brightness.
To achieve the goals above, present invention employs the following technical solutions:
A kind of quantum dot polaroid structure, quantum dot light emitting layer including protective layer, on protective layer are located at quantum
Blu-ray reflection layer on point luminescent layer, the polarizing layer on blu-ray reflection layer, the blu-ray reflection layer is used for will be described
The some blue light in blue light that quantum dot light emitting layer issues is reflected back the quantum dot light emitting layer, and then described in excitation again
Quantum dot light emitting layer shines.
Further, wherein the blu-ray reflection layer includes the diaphragm material that blu-ray reflection rate is 30~90%.Further
, wherein the reflection wavelength of the blu-ray reflection layer-selective is in the light between 400~480nm, some blue light is reflected
Return quantum dot light emitting layer.It is shone using the blue light excitation quantum dot light emitting layer of reflection, improves the utilization rate to light.
Further, wherein the quantum dot light emitting layer is formed in institute by heat cure or the cured method polymerization film formation of UV
It states on protective layer.
Further, wherein the quantum dot light emitting layer includes medium and the quantum dot that is arranged in the medium and red green
Pixel (R/G), the medium include transparent resin, TAC (Triafol T, Triacetyl Cellulose), COP (cyclenes
Any one of hydrocarbon polymer).
Further, wherein the quantum dot includes luminous nucleon, inorganic protection shell, the luminous nucleon includes green light material
Material, red light material, the green light material are selected from ZnCdSe2、InP、Cd2One or more of SSe, the red light material
Selected from CdSe, Cd2One or more of SeTe, InAs, the inorganic protection shell includes CdS, ZnSe, ZnCdS2、
One or more of ZnS, ZnO material.
Further, wherein the quantum dot includes that hydrogel loads quantum-dot structure, CdSe-SiO2Structure or perovskite
Any one of quantum dot.
Further, wherein the material of the protective layer include PET (polyethylene terephthalate,
Polyethylene terephthalate), TAC, COP it is any.
A further object of the present invention is to provide a kind of liquid crystal display, including above-mentioned quantum dot polaroid structure.
Further, wherein the liquid crystal display further includes a light source, positioned at the quantum dot polaroid structure
Incident side, the light that the light source issues inject the quantum dot polaroid structure and excite the quantum dot light emitting；The light
The light that source issues is blue light and the blue light excites the quantum dot dielectric layer to emit white light.
It is in contrast to the prior art, the present invention has by introducing one layer between quantum dot light emitting layer and polarizing layer
Some blue light is reflexed to quantum dot and excites quantum dot light emitting again, so recycled past by the blu-ray reflection layer of wavelength selectivity
It is multiple, the utilization rate of light is improved, the display brightness of diaphragm can be improved.
Detailed description of the invention
Fig. 1 is the sectional view of the quantum dot polaroid structure of one embodiment of the present invention；
Fig. 2 is the reflective portion blue light schematic diagram of the quantum dot polaroid structure of one embodiment of the present invention；
Fig. 3 is the sectional view of the liquid crystal display of one embodiment of the present invention.
Component mark is as follows in figure:
1 protective layer, 2 quantum dot light emitting layers, 3 blu-ray reflection layers, 4 polarizing layers；
21 media, 22 quantum dots, 23 red green pixels；
10 reflector plates, 20 light guide plates, 30 first diffusion sheets, 40 prismatic lens,
50 second diffusion sheets, 60 liquid crystal display panels, 70 light sources；
100 quantum dot polaroid structures.
Specific embodiment
The explanation of following embodiment is referred to the additional illustration, the particular implementation that can be used to implement to illustrate the present invention
Example.The direction term that the present invention is previously mentioned, such as [on], [under], [preceding], [rear], [left side], [right side], [interior], [outer], [side]
Deng being only the direction with reference to annexed drawings.Therefore, the direction term used be to illustrate and understand the present invention, rather than to
The limitation present invention.The similar unit of structure is with being given the same reference numerals in the figure.
It please refers to shown in Fig. 1, Fig. 2, an embodiment according to the present invention provides a kind of novel quantum dot polaroid knot
Structure 100, including protective layer 1, the quantum dot light emitting layer 2 on protective layer 1, the blue light on quantum dot light emitting layer 2
Reflecting layer 3, the polarizing layer 4 on blu-ray reflection layer 3, the blu-ray reflection layer 3 is for sending out the quantum dot light emitting layer 2
The some blue light in blue light out is reflected back the quantum dot light emitting layer 2, and then the excitation quantum dot light emitting layer 2 again
It shines.
Wherein the blu-ray reflection layer 3 includes the diaphragm material that blu-ray reflection rate is 30~90%.
Wherein the reflection wavelength of 3 selectivity of blu-ray reflection layer is in the light between 400~480nm, will part indigo plant
Light is reflected back quantum dot light emitting layer 2.It is shone using the blue light excitation quantum dot light emitting layer 2 of reflection, improves the utilization rate to light.
Wherein the quantum dot light emitting layer 2 is formed in the protective layer by heat cure or the cured method polymerization film formation of UV
On.
Wherein the quantum dot light emitting layer 2 includes medium 21 and the quantum dot 22 and red green picture that are arranged in the medium 21
23 (R/G) of element, the medium 21 include transparent resin, TAC (Triafol T, Triacetyl Cellulose), COP (ring
Any one of olefin polymer).
Wherein the quantum dot 22 includes luminous nucleon, inorganic protection shell, and the luminous nucleon includes green light material, feux rouges material
Material, the green light material are selected from ZnCdSe2、InP、Cd2One or more of SSe, the red light material be selected from CdSe,
Cd2One or more of SeTe, InAs, the inorganic protection shell includes CdS, ZnSe, ZnCdS2, in ZnS, ZnO
One or more kinds of materials.
Wherein the quantum dot 22 includes that hydrogel loads quantum-dot structure, CdSe-SiO2Structure or perovskite quantum dot
Any one of.
Wherein the material of the protective layer 1 includes PET (polyethylene terephthalate, Polyethylene
Terephthalate), TAC, COP's is any, plays a part of to obstruct water oxygen.
It please refers to shown in Fig. 3, a further object of the present invention is to provide a kind of liquid crystal display, including above-mentioned quantum dot is inclined
Sheet structure 100.Liquid crystal display of the present invention successively includes reflector plate 10, light guide plate 20, the first diffusion sheet 30, rib from bottom to up
Eyeglass 40, the second diffusion sheet 50, quantum dot polaroid structure 100 and liquid crystal display panel 60, wherein quantum dot polaroid structure 100 from
Under it is supreme successively include protective layer 1, quantum dot light emitting layer 2, blu-ray reflection layer 3, polarizing layer 4.
Wherein, liquid crystal display of the present invention further includes a light source 70, enters light positioned at the quantum dot polaroid structure 100
Side, in particular, the light source 70 is oppositely arranged with light guide plate 20, the light source is located at the side of light guide plate 20, the light source
70 light issued inject the quantum dot polaroid structure 100 and the quantum dot 22 are excited to shine；The light source 70 issues
Light be that blue light and the blue light excite the quantum dot dielectric layer 2 to emit white light.
It is in contrast to the prior art, the present invention between quantum dot light emitting layer 2 and polarizing layer 4 by introducing one layer of tool
There is the blu-ray reflection layer 3 of wavelength selectivity, some blue light is reflexed into quantum dot 22 and excitation quantum dot light emitting layer 2 is sent out again
Light loops back and forth like this, and improves the utilization rate of light, and the display brightness of diaphragm can be improved.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
Member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should be regarded as
Protection scope of the present invention.
Claims (10)
1. a kind of novel quantum dot polaroid structure characterized by comprising
One protective layer；
One quantum dot light emitting layer is located on protective layer；
One blu-ray reflection layer is located on quantum dot light emitting layer, for some blue light to be reflected back quantum dot light emitting layer；
One polarizing layer is located on blu-ray reflection layer.
2. quantum dot polaroid structure according to claim 1, which is characterized in that the blu-ray reflection layer includes that blue light is anti-
Penetrate the diaphragm material that rate is 30~90%.
3. quantum dot polaroid structure according to claim 1, which is characterized in that the blu-ray reflection layer-selective it is anti-
The long light between 400~480nm of ejected wave, is reflected back quantum dot light emitting layer for some blue light.
4. quantum dot polaroid structure according to claim 1, which is characterized in that the quantum dot light emitting layer passes through thermosetting
Change or the cured method polymerization film formation of UV is formed on the protective layer.
5. quantum dot polaroid structure according to claim 1, which is characterized in that the quantum dot light emitting layer includes medium
With the quantum dot and red green pixel being arranged in the medium, the medium includes transparent resin, TAC, COP or has red green double
Any one of the quanta point material of wavelength transmitting.
6. quantum dot polaroid structure according to claim 5, which is characterized in that the quantum dot includes luminous nucleon, nothing
Machine protects shell, and the luminous nucleon includes green light material, red light material, and the green light material is selected from ZnCdSe2、InP、Cd2SSe
One or more of, the red light material is selected from CdSe, Cd2One or more of SeTe, InAs, the nothing
It includes CdS, ZnSe, ZnCdS that machine, which protects shell,2, one or more of ZnS, ZnO material.
7. quantum dot polaroid structure according to claim 5, which is characterized in that the quantum dot includes that hydrogel loads
Quantum-dot structure, CdSe-SiO2Any one of structure or perovskite quantum dot.
8. quantum dot polaroid structure according to claim 1, which is characterized in that the material of the protective layer include PET,
TAC, COP's is any.
9. a kind of liquid crystal display, which is characterized in that the liquid crystal display includes such as the described in any item amounts of claim 1-8
Son point polaroid structure.
10. liquid crystal display according to claim 8, which is characterized in that further include
One light source, positioned at the incident side of the quantum dot polaroid structure, the light that the light source issues injects the quantum dot
Polaroid structure simultaneously excites the quantum dot light emitting；The light that the light source issues is blue light and the blue light excites the quantum dot
Dielectric layer emits white light.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910546968.7A CN110275238A (en) | 2019-06-24 | 2019-06-24 | Quantum dot polaroid structure and liquid crystal display |
| PCT/CN2019/102553 WO2020258485A1 (en) | 2019-06-24 | 2019-08-26 | Quantum dot polarizer structure and liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910546968.7A CN110275238A (en) | 2019-06-24 | 2019-06-24 | Quantum dot polaroid structure and liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110275238A true CN110275238A (en) | 2019-09-24 |
Family
ID=67961607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910546968.7A Pending CN110275238A (en) | 2019-06-24 | 2019-06-24 | Quantum dot polaroid structure and liquid crystal display |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110275238A (en) |
| WO (1) | WO2020258485A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110794615A (en) * | 2019-11-28 | 2020-02-14 | Tcl华星光电技术有限公司 | Backlight module and display device |
| CN111367112A (en) * | 2020-03-18 | 2020-07-03 | Tcl华星光电技术有限公司 | Quantum rod, quantum rod film comprising same and display device |
| CN111458936A (en) * | 2020-04-26 | 2020-07-28 | 南方科技大学 | Light-emitting module and display panel |
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| JP6153813B2 (en) * | 2013-08-12 | 2017-06-28 | 富士フイルム株式会社 | Liquid crystal display |
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- 2019-08-26 WO PCT/CN2019/102553 patent/WO2020258485A1/en active Application Filing
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| CN110794615A (en) * | 2019-11-28 | 2020-02-14 | Tcl华星光电技术有限公司 | Backlight module and display device |
| WO2021103199A1 (en) * | 2019-11-28 | 2021-06-03 | Tcl华星光电技术有限公司 | Backlight module and display device |
| CN111367112A (en) * | 2020-03-18 | 2020-07-03 | Tcl华星光电技术有限公司 | Quantum rod, quantum rod film comprising same and display device |
| CN111458936A (en) * | 2020-04-26 | 2020-07-28 | 南方科技大学 | Light-emitting module and display panel |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020258485A1 (en) | 2020-12-30 |
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Application publication date: 20190924 |