CN105467680A - Quantum tube, backlight module and display device - Google Patents
Quantum tube, backlight module and display device Download PDFInfo
- Publication number
- CN105467680A CN105467680A CN201610015146.2A CN201610015146A CN105467680A CN 105467680 A CN105467680 A CN 105467680A CN 201610015146 A CN201610015146 A CN 201610015146A CN 105467680 A CN105467680 A CN 105467680A
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- Prior art keywords
- quantum
- tube
- backlight module
- fluorescent tube
- cathode fluorescent
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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
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
-
- 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)
Abstract
The invention discloses a quantum tube, a backlight module and a display device. The quantum tube is used for the backlight module, is in a transparent tube shape and comprises a hollow tube body and quantum dots sealed in the tube body. A cold cathode fluorescence lamp tube is arranged in the tube body in the extending direction of the center line of the tube body. By means of the quantum tube, the backlight module and the display device, the wide color gamut can be achieved through the small half-wave width of the quantum dots, and therefore the display colors of an LCD are improved; in addition, the cold cathode fluorescence lamp tube is arranged in the quantum tube, and therefore the number of the use quantum dots can be decreased. Furthermore, light sources of the quantum tube can be in 360-degree directions, the light receiving area is greatly increased compared with a traditional perpendicularly-downward type accordingly, and therefore luminous efficiency can be effectively improved.
Description
Technical field
The present invention relates to technical field of liquid crystal display, particularly relate to a kind of quantum pipe, backlight module and display device.
Background technology
At present, liquid crystal indicator is widely used as the display unit of electronic equipment, and consumer requires more and more higher to the colour vividness of equipment, thus needs the color gamut value improving display device.Backlight module is the vitals in liquid crystal indicator, and its colour gamut providing light source to produce certainly will require more and more higher.
In the prior art, in order to improve the display backlight colour gamut that backlight module provides, start progressively to use a kind of hot spot technology-employing quantum dot (QuantumDot is called for short QD) to improve backlight colour gamut, quantum dot is the nano material of accurate zero dimension, is made up of a small amount of atom.The particle diameter of quantum dot is generally between 1 ~ 10nm, and because electronics and hole are by quantum confinement, continuous print band structure becomes the discrete energy levels structure with molecular characterization, can emitting fluorescence after being excited, and then changes the colour gamut injecting light.
Therefore, how to obtain better backlight colour gamut by making to adopt the backlight module of quantum dot and become current important subject.
Summary of the invention
Therefore, the invention provides a kind of quantum pipe, backlight module and display device, it can utilize quantum ripple thirty width and realize wide colour gamut, thus improves LCD display color, and in described quantum pipe, is provided with a cathode fluorescent tube and can reduces quantum dot consumption.Moreover, quantum pipe by light source from 360 degree of directions, and then the straight-down negative making light-receiving area more traditional increases far away, therefore, it is possible to effectively improve light efficiency.
According to an aspect of of the present present invention, provide a kind of quantum pipe, in backlight module, described quantum pipe is clear tubular, it body comprising hollow and the quantum dot be sealed in body; On the center line bearing of trend of described body, a cathode fluorescent tube is provided with in described body.
In an embodiment of the present invention, described quantum dot is made up of the multiple different materials for generation of RGB tri-coloured light.
In an embodiment of the present invention, described multiple different materials is by blending ratio composition.
In an embodiment of the present invention, mercury atom is full of in described cathode fluorescent tube.
In an embodiment of the present invention, the two ends in described cathode fluorescent tube are respectively arranged with a metal electrode.
In an embodiment of the present invention, the two ends of described cathode fluorescent tube protrude from the two ends of described quantum pipe respectively.
In an embodiment of the present invention, when the metal electrode at described cathode fluorescent tube two ends is applied in high pressure, mercury atom in described cathode fluorescent tube sends ultraviolet light under High Pressure, and the quantum dot in body described in described ultraviolet excitation, to produce RGB tri-coloured light and then to be mixed to form white light.
According to the present invention on the other hand, provide a kind of backlight module, it comprises above-mentioned quantum pipe.
According to another aspect of the invention, provide a kind of display device, it comprises above-mentioned backlight module.
The invention has the advantages that, quantum pipe of the present invention, backlight module and display device can utilize quantum ripple thirty width and realize wide colour gamut, thus improve LCD display color, and in described quantum pipe, be provided with a cathode fluorescent tube and quantum dot consumption can be reduced.Moreover, quantum pipe by light source from 360 degree of directions, and then the straight-down negative making light-receiving area more traditional increases far away, therefore, it is possible to effectively improve light efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of the quantum pipe in one embodiment of the invention;
Fig. 2 is the cut-open view of the quantum pipe in one embodiment of the invention;
Fig. 3 is the structural representation of cathode fluorescent tube in prior art;
Fig. 4 is the schematic diagram that quantum pipe in one embodiment of the invention is applied to backlight module.
Embodiment
Elaborate below in conjunction with the embodiment of accompanying drawing to quantum pipe provided by the invention, backlight module and display device.
Shown in Fig. 1 and Fig. 2, the invention provides a kind of quantum pipe 10, in backlight module, described quantum pipe 10 is clear tubular, such as tubular glass body.The body 11 that described quantum pipe 10 comprises hollow and the quantum dot 12 be sealed in body 11.A cathode fluorescent tube 13 is provided with in described body 11 and on the center line bearing of trend of described body 11.
Wherein, described quantum dot 12 is a kind of nano particles be made up of II-VI group or iii-v element.The particle diameter of described quantum dot 12 is generally less than and equals 10nm, and because electronics and hole are by quantum confinement, continuous print band structure becomes the discrete energy levels structure with molecular characterization, can be luminous after being excited.In the present embodiment, described quantum dot 12 is made up of the multiple different materials (nano particle) for generation of RGB tri-coloured light, and described multiple different materials formed by blending ratio.By adjusting the ratio of multiple different materials, to contribute to changing by RGB tri-coloured light form the chromaticity coordinates of white light.
Described cathode fluorescent tube 13 also can be referred to as CCFL fluorescent tube (i.e. ColdCathodeFluorescentLamp).Described cathode fluorescent tube 13 is clear tubular.Mercury atom (not marking in figure) is full of in described cathode fluorescent tube 13.Two ends in described cathode fluorescent tube 13 are respectively arranged with a metal electrode 131.The two ends of described cathode fluorescent tube 13 protrude from the two ends of described quantum pipe 10 respectively.And in the present embodiment, cathode fluorescent tube 13 of the present invention CCFL fluorescent tube more of the prior art (as shown in Figure 3, wherein number in the figure 31 is metal electrode, 32 is fluorescence coating, 33 for visible ray) difference is, inwall shown in Fig. 3 is provided with fluorescence coating 32 (being wherein full of fluorescent powder), and in the present embodiment, the madial wall of described cathode fluorescent tube 13 is not provided with a fluorescence coating.That is, the uncoated fluorescent powder of inwall of cathode fluorescent tube 13 of the present invention.If it is noted that arrange fluorescence coating at the madial wall of described cathode fluorescent tube 13, so fluorescence coating can be subject to ultraviolet light and excite generation white light, thus can reduce the light efficiency of quantum dot.
When the metal electrode 131 at described cathode fluorescent tube 13 two ends is applied in high pressure, the mercury atom in described cathode fluorescent tube 13 sends ultraviolet light 132 under High Pressure.Described ultraviolet light 132 excites the quantum dot 12 in described quantum pipe 10 body.That is described ultraviolet light 132 excites the quantum dot 12 being wrapped in described cold-cathode fluorescence lamp outer surface.In the present embodiment, described quantum dot 12 is made up of (label 12 as shown in Figure 2) the multiple different materials particle for generation of RGB tri-coloured light (i.e. ruddiness, green glow and blue light), therefore, after ultraviolet light 132 excitation quantum point 12, produce RGB tri-coloured light, and according to blending ratio relation, form corresponding white light.Certainly, by adjusting the ratio of multiple different materials, can to change by RGB tri-coloured light form the chromaticity coordinates of white light.
Because quantum dot 12 has half-wave width, therefore can reach wide colour gamut effect, thus the display color of the display device adopting described quantum pipe 10 can be improved.Especially particularly, in the present embodiment, in described quantum pipe 10, be provided with a cathode fluorescent tube 13, therefore, quantum dot 12 consumption can be reduced.Moreover, because described cathode fluorescent tube 13 is clear tubular (namely cylindrical), therefore, described quantum pipe 10 is from 360 degree of directions by light source, and then the straight-down negative making light-receiving area more traditional increases, so just effectively light efficiency can be improved far away.
Shown in Figure 4, according to the present invention on the other hand, the present invention also provides a kind of backlight module.Described backlight module comprises the quantum pipe 10 in metal frame 20, light guide plate 30, reflecting plate 50, diffuser plate 60 and any one embodiment mentioned above.Described metal frame 20 is arranged on a side of described light guide plate 30, and wherein said light guide plate is arranged on the back side of a LCD 40, and described metal frame 20, in order to support and to protect described quantum pipe 10, also plays reflex simultaneously.Described quantum pipe 10 is arranged on the side of described light guide plate 30, and its concrete structure as described above, does not repeat them here.Be provided with reflecting plate 50 in the side (bottom surface side as shown in Figure 4) of described light guide plate 30, described reflecting plate 50 returns in described light guide plate 30 for the light reflection described light guide plate 30 exposed, thus improves light source utilization rate.And the relative opposite side of described light guide plate 30 is provided with diffuser plate 60, described diffuser plate 60 diffuses to described LCD 40 in order to the light sent by described quantum pipe 10.Optionally, can be provided with a brightness enhancement film 70 further between described LCD 40 and described diffuser plate 60, described brightness enhancement film 70, for adjusting the convergence angle of light, makes light converge towards the direction of LCD 40.Because described backlight module adopts the quantum pipe 10 of said structure, therefore, it is possible to reach wide colour gamut effect, and improve display color saturation degree.
In addition, the present invention also provides a kind of display device, and it comprises the backlight module in any one embodiment as described above, does not repeat them here.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (9)
1. a quantum pipe, in backlight module, is characterized in that, described quantum pipe is clear tubular, it body comprising hollow and the quantum dot be sealed in body; On the center line bearing of trend of described body, a cathode fluorescent tube is provided with in described body.
2. quantum pipe according to claim 1, is characterized in that, described quantum dot is made up of the multiple different materials for generation of RGB tri-coloured light.
3. quantum pipe according to claim 2, is characterized in that, described multiple different materials is by blending ratio composition.
4. quantum pipe according to claim 1, is characterized in that, is full of mercury atom in described cathode fluorescent tube.
5. quantum pipe according to claim 1, is characterized in that, the two ends in described cathode fluorescent tube are respectively arranged with a metal electrode.
6. quantum pipe according to claim 1, is characterized in that, the two ends of described cathode fluorescent tube protrude from the two ends of described quantum pipe respectively.
7. quantum pipe according to claim 1, it is characterized in that, when the metal electrode at described cathode fluorescent tube two ends is applied in high pressure, mercury atom in described cathode fluorescent tube sends ultraviolet light under High Pressure, and the quantum dot in body described in described ultraviolet excitation, to produce RGB tri-coloured light and then to be mixed to form white light.
8. a backlight module, is characterized in that, comprises the quantum pipe described in any one of claim 1 ~ 7.
9. a display device, is characterized in that, comprises backlight module according to claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610015146.2A CN105467680A (en) | 2016-01-11 | 2016-01-11 | Quantum tube, backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610015146.2A CN105467680A (en) | 2016-01-11 | 2016-01-11 | Quantum tube, backlight module and display device |
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| CN105467680A true CN105467680A (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610015146.2A Pending CN105467680A (en) | 2016-01-11 | 2016-01-11 | Quantum tube, backlight module and display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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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| KR20130047985A (en) * | 2011-11-01 | 2013-05-09 | 엘지이노텍 주식회사 | Light emitting apparatus |
| TW201340370A (en) * | 2012-02-15 | 2013-10-01 | Qd Vision Inc | Method of processing quantum dot inks |
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2016
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Cited By (2)
| 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 |
| CN107238970B (en) * | 2017-06-12 | 2023-06-02 | 南京第五十五所技术开发有限公司 | Array type laser quantum dot bar backlight display module device |
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Application publication date: 20160406 |
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