WO2017101201A1 - 量子点管及液晶显示装置 - Google Patents

量子点管及液晶显示装置 Download PDF

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WO2017101201A1
WO2017101201A1 PCT/CN2016/072651 CN2016072651W WO2017101201A1 WO 2017101201 A1 WO2017101201 A1 WO 2017101201A1 CN 2016072651 W CN2016072651 W CN 2016072651W WO 2017101201 A1 WO2017101201 A1 WO 2017101201A1
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tube
quantum dot
light source
optical fiber
inner tube
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French (fr)
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唐敏
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Priority to US14/912,926 priority Critical patent/US9846270B2/en
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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
    • G02F1/133602—Direct backlight
    • G02F1/133603—Direct backlight with LEDs
    • 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
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • 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

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a quantum dot tube and a liquid crystal display device.
  • Quantum Dots also known as nanocrystals, are nanoparticles composed of II-VI or III-V elements.
  • the particle size of a quantum dot is generally between 1 and 20 nm. Since electrons and holes are quantum confined, the continuous band structure becomes a discrete energy level structure with molecular characteristics. Therefore, after being excited by blue-violet light, the quantum dots can be converted into high-purity monochromatic light, and the color can be controlled by the diameter of the quantum dots.
  • the panel display technology can effectively improve the color gamut of the panel, that is, the color reproduction capability.
  • quantum dots have been widely used in the field of TFT-LCD (Thin Film Transistor-Liquid Crystal Display), for example, a quantum dot glass tube or a quantum dot enhancement film is applied to a backlight module of an LCD.
  • technologies such as quantum dot polarizers, quantum dot color resists, and light-emitting diodes (LEDs) are also in the research and development stage.
  • a quantum dot glass tube is known in the art for use in a backlight module of a large-sized liquid crystal television.
  • the LED light source 200 is a blue LED light bar, and emits blue light through the LED light source 200, and respectively excites the red quantum dot 101 and the green quantum dot 102 in the quantum dot glass tube 100 to emit red light and green light, so that red light and green light are generated.
  • the light and the unexcited blue light are mixed into white light, and the white light is formed into a backlight through the light guide plate 300, the prism sheet, and the diffusion sheet.
  • this backlight can significantly increase the color gamut of liquid crystal displays, such as the original 72% NTSC to 100% NTSC.
  • the disadvantage of this technique is that the quantum dot glass tube 100 is closer to the LED light source 200, and the heat generated by the light source shortens the lifetime of the quantum dot.
  • Another object of the present invention is to provide a liquid crystal display device using a quantum dot tube as a light source, which has long service life, high efficiency, and low cost.
  • the present invention provides a quantum dot tube including an inner tube and sleeved in the An outer tube outside the inner tube, a plurality of optical fibers passing through the inner portion of the inner tube, an LED light source connected to both ends of the optical fiber, an encapsulant for sealing the opening of the inner tube and the outer tube, and a package a quantum dot between the inner tube and the outer tube;
  • the quantum dot includes a red quantum dot, and a green quantum dot;
  • the LED light source is a blue LED light source;
  • the optical fiber is an optical fiber that removes an outer layer, thereby causing the The blue light emitted by the LED light source is emitted from the optical fiber and passes through the wall of the inner tube, respectively exciting red and green quantum dots to emit red and green light, and the red, green and unabsorbed blue light are mixed.
  • White light is emitted through the wall of the outer tube to form a white light source.
  • the inner tube and the outer tube are all glass tubes.
  • the inner tube is disposed coaxially with the outer tube.
  • the outer cladding of the fiber is removed by laser.
  • the optical fiber is coupled to the LED light source via a coupler.
  • the present invention also provides a liquid crystal display device including a backlight module and a liquid crystal panel disposed on the backlight module.
  • the backlight module includes a reflective plate and a light guide plate located above the reflective plate. a quantum dot tube on a side of the light guide plate, a diffusion plate located above the light guide plate, and a brightness enhancement film located above the diffusion plate;
  • the quantum dot tube includes an inner tube, an outer tube sleeved outside the inner tube, a plurality of optical fibers passing through the inner portion of the inner tube, and an LED light source connected to both ends of the optical fiber for sealing the inner tube a potting compound opened at both ends of the outer tube, and a quantum dot encapsulated between the inner tube and the outer tube;
  • the quantum dot includes a red quantum dot and a green quantum dot;
  • the LED light source is a blue LED light source;
  • the optical fiber is an optical fiber that removes the outer layer, so that the blue light emitted by the LED light source is emitted from the optical fiber and passes through the wall of the inner tube, respectively exciting the red quantum dot and the green quantum dot to emit red light and green light.
  • the red, green, and unabsorbed blue light is mixed into white light and exits through the wall of the outer tube to form a white light source.
  • the inner tube and the outer tube are all glass tubes.
  • the inner tube is disposed coaxially with the outer tube.
  • the outer cladding of the fiber is removed by laser.
  • the optical fiber is coupled to the LED light source via a coupler.
  • the invention provides a quantum dot tube, comprising an inner tube, an outer tube sleeved outside the inner tube, a plurality of optical fibers passing through the inner portion of the inner tube, and an LED light source connected to both ends of the optical fiber for sealing
  • the inner tube and the outer tube open at both ends of the encapsulant, and the quantum dots encapsulated between the inner tube and the outer tube;
  • the quantum dot includes a red quantum dot and a green quantum dot;
  • the LED light source is a blue LED light source;
  • the optical fiber is an optical fiber that removes an outer layer, so that blue light emitted by the LED light source is emitted from the optical fiber and is worn. Passing through the wall of the inner tube, respectively exciting red quantum dots and green quantum dots Red light and green light, the red light, the green light and the unabsorbed blue light are mixed into white light, and are emitted through the wall of the outer tube to form a white light source;
  • the inner tube and the outer tube are glass tubes
  • the optical fiber is coupled to the LED light source through a coupler.
  • the quantum dot tube provided by the present invention is provided with an inner tube, an outer tube sleeved outside the inner tube, and a plurality of optical fibers passing through the inner tube, and a red tube is interposed between the inner tube and the outer tube.
  • Quantum dots and green quantum dots, and sealing both ends of the inner tube and the outer tube through an encapsulant, and at the same time, the optical fiber can be fixed, and both ends of the optical fiber are coupled and connected with a blue LED light source, and the optical fiber is an optical fiber for removing the outer layer.
  • the blue light emitted by the LED light source is emitted from the optical fiber and passes through the wall of the inner tube, respectively exciting red and green quantum dots to emit red light and green light, the red light, the green light and the unabsorbed
  • the blue light is mixed into white light and is emitted through the wall of the outer tube to form a white light source; the distance between the LED light source and the quantum dot is increased by the arrangement of the optical fiber, and the heat generated by the LED light source is avoided to the quantum dot.
  • the effect is to improve the service life and efficiency of the quantum dots.
  • the inner tube and the outer tube for packaging the amount of quantum dots is reduced, and the production cost of the quantum dot tube is reduced.
  • the liquid crystal display device of the invention comprises a backlight module and a liquid crystal panel.
  • the backlight module uses the quantum dot tube to provide a light source, and the quantum dot has long service life, high efficiency and low cost, and can greatly improve the color gamut of the liquid crystal display device.
  • FIG. 1 is a schematic diagram of a conventional quantum dot tube applied to a backlight module
  • FIG. 2 is a schematic cross-sectional view of a quantum dot tube of the present invention
  • Figure 3 is a schematic cross-sectional view of a quantum dot tube of the present invention.
  • FIG. 4 is a schematic view showing the optical path of the quantum dot tube of the present invention.
  • Fig. 5 is a cross-sectional structural view showing a liquid crystal display device of the present invention.
  • the present invention firstly provides a quantum dot tube including an inner tube 11 , an outer tube 12 sleeved outside the inner tube 11 , and a plurality of optical fibers 13 passing through the inner tube 11 . , an LED light source 14 connected to both ends of the optical fiber 13 , an encapsulant 15 for sealing the opening of the inner tube 11 and the outer tube 12 , and a quantum dot encapsulated between the inner tube 11 and the outer tube 12 16.
  • the encapsulant 15 is also used to fix the optical fiber 13 while encapsulating the quantum dots 16.
  • the quantum dots 16 include red quantum dots 161 and green quantum dots 162.
  • the LED light source 14 is a blue LED light source.
  • the optical fiber 13 is an optical fiber for removing the outer layer, so that the blue light emitted by the LED light source 14 is emitted from the optical fiber 13 and passes through the wall of the inner tube 11, respectively exciting the red quantum dot 161 and the green quantum dot 162 to emit red.
  • Light and green light, the red, green and unabsorbed blue light are mixed into white light and exit through the tube wall of the outer tube 12 to form a white light source.
  • the inner tube 11 and the outer tube 12 are both glass tubes.
  • the inner tube 11 and the outer tube 12 are all round tubes.
  • the inner tube 11 is disposed coaxially with the outer tube 12.
  • the outer cladding of the optical fiber 13 can be removed by laser or other means to destroy its total reflection so that light therein can be emitted.
  • the outer cladding of the optical fiber 13 is removed by a laser method.
  • the optical fiber 13 is coupled to the LED light source 14 via a coupler 17.
  • the quantum dot tube of the invention can share the mold with the existing Cold Cathode Fluorescent Lamp (CCFL), and can directly replace the cold cathode fluorescent tube in the side-entry backlight module.
  • CCFL Cold Cathode Fluorescent Lamp
  • the quantum dot tube has an inner tube, an outer tube sleeved outside the inner tube, and a plurality of optical fibers passing through the inner tube, and red quantum dots and green quantum dots are encapsulated between the inner tube and the outer tube, and passed through
  • the encapsulant seals both ends of the inner tube and the outer tube, and at the same time fixes the optical fiber. Both ends of the optical fiber are coupled with the blue LED light source, and the optical fiber is an optical fiber that removes the outer layer, thereby causing the blue light emitted by the LED light source.
  • the wall of the outer tube is ejected to form a white light source; the distance between the LED light source and the quantum dot is increased by the arrangement of the optical fiber, thereby avoiding the influence of the heat generated by the LED light source on the quantum dot, thereby improving the service life of the quantum dot and Efficiency; at the same time, by using the inner tube and the outer tube for packaging, the amount of quantum dots is reduced, and the production cost of the quantum dot tube is reduced.
  • the liquid crystal display device includes a backlight module 10 and a liquid crystal panel 20 disposed on the backlight module 10 .
  • the backlight module 10 includes a reflective plate 2, a light guide plate 3 located above the reflective plate 2, The quantum dot tube 1 located on the side of the light guide plate 3, the diffusion plate 4 located above the light guide plate 3, and the brightness enhancement film 5 located above the diffusion plate 4.
  • the quantum dot tube 1 includes an inner tube 11 , an outer tube 12 sleeved outside the inner tube 11 , a plurality of optical fibers 13 passing through the inner portion of the inner tube 11 , and an LED light source 14 connected to both ends of the optical fiber 13 .
  • the quantum dots 16 include red quantum dots 161 and green quantum dots 162.
  • the LED light source 14 is a blue LED light source.
  • the optical fiber 13 is an optical fiber for removing the outer layer, so that the blue light emitted by the LED light source 14 is emitted from the optical fiber 13 and passes through the wall of the inner tube 11, respectively exciting the red quantum dot 161 and the green quantum dot 162 to emit red.
  • Light and green light, the red, green and unabsorbed blue light are mixed into white light and exit through the tube wall of the outer tube 12 to form a white light source.
  • the inner tube 11 and the outer tube 12 are both glass tubes.
  • the inner tube 11 and the outer tube 12 are all round tubes.
  • the inner tube 11 is disposed coaxially with the outer tube 12.
  • the outer cladding of the optical fiber 13 can be removed by laser or other means to destroy its total reflection so that light therein can be emitted.
  • the outer cladding of the optical fiber 13 is removed by a laser method.
  • the optical fiber 13 is coupled to the LED light source 14 via a coupler 17.
  • the liquid crystal display device includes a backlight module and a liquid crystal panel.
  • the backlight module uses the quantum dot tube to provide a light source, and the quantum dot has long service life, high efficiency, and low cost, and can greatly improve the color gamut of the liquid crystal display device.
  • the quantum dot tube provided by the present invention is provided with an inner tube, an outer tube sleeved outside the inner tube, and a plurality of optical fibers passing through the inner tube, and a red quantum is encapsulated between the inner tube and the outer tube.
  • Point and green quantum dots and sealing both ends of the inner tube and the outer tube through the encapsulant, and fixing the optical fiber, the two ends of the optical fiber are coupled with the blue LED light source, and the optical fiber is an optical fiber for removing the outer layer, thereby
  • the blue light emitted by the LED light source is emitted from the optical fiber and passes through the wall of the inner tube to respectively excite the red quantum light and the green quantum dot to emit red light and green light, the red light, the green light and the unabsorbed
  • the blue light is mixed into white light and is emitted through the wall of the outer tube to form a white light source; the distance between the LED light source and the quantum dot is increased by the arrangement of the optical fiber, and the influence of the heat generated by the LED light source on the quantum dot is avoided.
  • the liquid crystal display device of the present invention comprises a backlight module and a liquid crystal panel, and the backlight module is used.
  • the quantum dot tube provides a light source, and the quantum dot has a long service life, high efficiency, and low cost, and can greatly improve the color gamut of the liquid crystal display device.

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  • Nonlinear Science (AREA)
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  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
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Abstract

一种量子点管及液晶显示装置。所述量子点管包括内管(11)、外管(12)、光纤(13)、LED光源(14)、封装胶(15)、及量子点(16)；所述量子点(16)包括红色量子点(161)及绿色量子点(162)；所述LED光源(14)为蓝色LED光源；所述光纤(13)为去除外包层的光纤，所述量子点管可避免LED光源产生的热量对量子点的影响，提升了量子点的使用寿命及效率；同时利用内管(11)和外管(12)进行封装，减少了量子点的用量，降低了量子点管的生产成本。所述液晶显示装置包括背光模组(10)及液晶面板(20)，所述背光模组(10)采用上述量子点管提供光源，量子点的使用寿命长、效率高，且成本低，可大幅提升液晶显示装置的色域。

Description

量子点管及液晶显示装置 技术领域
本发明涉及显示技术领域，尤其涉及一种量子点管及液晶显示装置。
背景技术
量子点(Quantum Dots，QDs)又可以称纳米晶，是一种由II－VI族或III－V族元素组成的纳米颗粒。量子点的粒径一般介于1～20nm之间，由于电子和空穴被量子限域，连续的能带结构变成具有分子特性的分立能级结构。因此，量子点受到蓝紫光激发后，可转换成高纯度的单色光，颜色可通过量子点的直径控制，应用于面板显示技术可有效地提高面板的色域，即色彩再现能力。
目前量子点已被广泛应用于TFT-LCD(Thin Film Transistor-Liquid Crystal Display，薄膜场效应晶体管-液晶显示器)领域，例如将量子点玻璃管或者量子点增强膜应用于LCD的背光模组当中。此外，量子点偏光片、量子点色阻及量子点LED(Light Emitting Diode，发光二极管)等技术也处于研发阶段。
请参阅图1，量子点玻璃管应用在大尺寸液晶电视的背光模组中为公知技术。其中，LED光源200为蓝色LED灯条，通过LED光源200发出蓝光，并分别激发量子点玻璃管100中的红色量子点101和绿色量子点102发出红光和绿光，使得红光、绿光和未激发的蓝光混合成白光，白光通过导光板300、棱镜片、扩散片形成背光。与传统的白光LED背光相比，该背光可大幅提升液晶显示器的色域，例如将原有的72％NTSC提升至100％NTSC。但该技术的缺点是，量子点玻璃管100距离LED光源200较近，光源产生的热量会缩短量子点的寿命。
因此，有必要提供一种量子点管及液晶显示装置，以解决上述问题。
发明内容
本发明的目的在于提供一种量子点管，量子点的使用寿命长、效率高，且成本低。
本发明的目的还在于提供一种液晶显示装置，采用量子点管作为光源，量子点的使用寿命长、效率高，且成本低。
为实现上述目的，本发明提供一种量子点管，包括内管、套设于所述 内管外部的外管、穿过所述内管内部的数条光纤、连接于所述光纤两端的LED光源、用于密封所述内管与外管两端开口的封装胶、及封装于所述内管与外管之间的量子点；所述量子点包括红色量子点、及绿色量子点；所述LED光源为蓝色LED光源；所述光纤为去除外包层的光纤，从而使得所述LED光源发出的蓝光从光纤中射出，并穿过内管的管壁，分别激发红色量子点和绿色量子点发出红光和绿光，所述红光、绿光和未被吸收的蓝光混合成白光，并穿过所述外管的管壁射出，形成白色光源。
所述内管、外管均为玻璃管。
所述内管与外管同轴设置。
所述光纤的外包层通过镭射的方法去除。
所述光纤通过耦合器与所述LED光源耦合连接。
本发明还提供一种液晶显示装置，包括背光模组、及设于所述背光模组上的液晶面板；所述背光模组包括反射板、位于所述反射板上方的导光板、位于所述导光板侧部的量子点管、位于所述导光板上方的扩散板、及位于所述扩散板上方的增亮膜；
所述量子点管包括内管、套设于所述内管外部的外管、穿过所述内管内部的数条光纤、连接于所述光纤两端的LED光源、用于密封所述内管与外管两端开口的封装胶、及封装于所述内管与外管之间的量子点；所述量子点包括红色量子点、及绿色量子点；所述LED光源为蓝色LED光源；所述光纤为去除外包层的光纤，从而使得所述LED光源发出的蓝光从光纤中射出，并穿过内管的管壁，分别激发红色量子点和绿色量子点发出红光和绿光，所述红光、绿光和未被吸收的蓝光混合成白光，并穿过所述外管的管壁射出，形成白色光源。
所述内管、外管均为玻璃管。
所述内管与外管同轴设置。
所述光纤的外包层通过镭射的方法去除。
所述光纤通过耦合器与所述LED光源耦合连接。
本发明提供一种量子点管，包括内管、套设于所述内管外部的外管、穿过所述内管内部的数条光纤、连接于所述光纤两端的LED光源、用于密封所述内管与外管两端开口的封装胶、及封装于所述内管与外管之间的量子点；
所述量子点包括红色量子点、及绿色量子点；所述LED光源为蓝色LED光源；所述光纤为去除外包层的光纤，从而使得所述LED光源发出的蓝光从光纤中射出，并穿过内管的管壁，分别激发红色量子点和绿色量子点发 出红光和绿光，所述红光、绿光和未被吸收的蓝光混合成白光，并穿过所述外管的管壁射出，形成白色光源；
其中，所述内管、外管均为玻璃管；
其中，所述内管与外管同轴设置；
其中，所述光纤的外包层通过镭射的方法去除；
其中，所述光纤通过耦合器与所述LED光源耦合连接。
本发明的有益效果：本发明提供的量子点管，设有内管、套设于内管外部的外管、及穿过内管内部的数条光纤，内管和外管之间封装有红色量子点和绿色量子点，并通过封装胶将内管和外管的两端进行密封，同时可固定光纤，光纤的两端与蓝色LED光源耦合连接，所述光纤为去除外包层的光纤，从而使得所述LED光源发出的蓝光从光纤中射出，并穿过内管的管壁，分别激发红色量子点和绿色量子点发出红光和绿光，所述红光、绿光和未被吸收的蓝光混合成白光，并穿过所述外管的管壁射出，形成白色光源；通过光纤的设置增大了LED光源与量子点之间的距离，避免了LED光源产生的热量对量子点的影响，从而提升了量子点的使用寿命及效率；同时通过利用内管和外管进行封装，减少了量子点的用量，降低了量子点管的生产成本。本发明的液晶显示装置，包括背光模组及液晶面板，背光模组采用上述量子点管提供光源，量子点的使用寿命长、效率高，且成本低，可大幅提升液晶显示装置的色域。
附图说明
为了能更进一步了解本发明的特征以及技术内容，请参阅以下有关本发明的详细说明与附图，然而附图仅提供参考与说明用，并非用来对本发明加以限制。
附图中，
图1为一种现有的量子点管应用于背光模组的示意图；
图2为本发明的量子点管的剖面示意图；
图3为本发明的量子点管的截面示意图；
图4为本发明的量子点管的光路示意图；
图5为本发明的液晶显示装置的剖面结构示意图。
具体实施方式
为更进一步阐述本发明所采取的技术手段及其效果，以下结合本发明的优选实施例及其附图进行详细描述。
请参阅图2至图4，本发明首先提供一种量子点管，包括内管11、套设于所述内管11外部的外管12、穿过所述内管11内部的数条光纤13、连接于所述光纤13两端的LED光源14、用于密封所述内管11与外管12两端开口的封装胶15、及封装于所述内管11与外管12之间的量子点16。所述封装胶15在封装量子点16的同时还用于固定所述光纤13。
所述量子点16包括红色量子点161、及绿色量子点162。所述LED光源14为蓝色LED光源。所述光纤13为去除外包层的光纤，从而使得所述LED光源14发出的蓝光从光纤13中射出，并穿过内管11的管壁，分别激发红色量子点161和绿色量子点162发出红光和绿光，所述红光、绿光和未被吸收的蓝光混合成白光，并穿过所述外管12的管壁射出，形成白色光源。
具体地，所述内管11、外管12均为玻璃管。优选的，所述内管11、外管12均为圆管。
具体地，所述内管11与外管12同轴设置。
所述光纤13的外包层可通过镭射或其他方法去除，以破坏其全反射，从而使其中的光线可以射出。优选的，所述光纤13的外包层通过镭射方法去除。
具体地，所述光纤13通过耦合器17与所述LED光源14耦合连接。
本发明的量子点管可与已有的冷阴极荧光灯管(Cold Cathode Fluorescent Lamp，CCFL)共用模具，并可直接替换冷阴极荧光灯管应用于侧入式背光模组中。
上述量子点管，设有内管、套设于内管外部的外管、及穿过内管内部的数条光纤，内管和外管之间封装有红色量子点和绿色量子点，并通过封装胶将内管和外管的两端进行密封，同时可固定光纤，光纤的两端与蓝色LED光源耦合连接，所述光纤为去除外包层的光纤，从而使得所述LED光源发出的蓝光从光纤中射出，并穿过内管的管壁，分别激发红色量子点和绿色量子点发出红光和绿光，所述红光、绿光和未被吸收的蓝光混合成白光，并穿过所述外管的管壁射出，形成白色光源；通过光纤的设置增大了LED光源与量子点的距离，避免了LED光源产生的热量对量子点的影响，从而提升了量子点的使用寿命及效率；同时通过利用内管和外管进行封装，减少了量子点的用量，降低了量子点管的生产成本。
请参阅图5，并结合图1至图4，本发明还提供一种液晶显示装置，包括背光模组10、及设于所述背光模组10上的液晶面板20。
所述背光模组10包括反射板2、位于所述反射板2上方的导光板3、 位于所述导光板3侧部的量子点管1、位于所述导光板3上方的扩散板4、及位于所述扩散板4上方的增亮膜5。
所述量子点管1包括内管11、套设于所述内管11外部的外管12、穿过所述内管11内部的数条光纤13、连接于所述光纤13两端的LED光源14、用于密封所述内管11与外管12两端开口的封装胶15、及封装于所述内管11与外管12之间的量子点16。其中，所述封装胶15在封装量子点16的同时还用于固定所述光纤13。
所述量子点16包括红色量子点161、及绿色量子点162。所述LED光源14为蓝色LED光源。所述光纤13为去除外包层的光纤，从而使得所述LED光源14发出的蓝光从光纤13中射出，并穿过内管11的管壁，分别激发红色量子点161和绿色量子点162发出红光和绿光，所述红光、绿光和未被吸收的蓝光混合成白光，并穿过所述外管12的管壁射出，形成白色光源。
具体地，所述内管11、外管12均为玻璃管。优选的，所述内管11、外管12均为圆管。
具体地，所述内管11与外管12同轴设置。
所述光纤13的外包层可通过镭射或其他方法去除，以破坏其全反射，从而使其中的光线可以射出。优选的，所述光纤13的外包层通过镭射方法去除。
具体地，所述光纤13通过耦合器17与所述LED光源14耦合连接。
上述液晶显示装置，包括背光模组及液晶面板，背光模组采用上述量子点管提供光源，量子点的使用寿命长、效率高，且成本低，可大幅提升液晶显示装置的色域。
综上所述，本发明提供的量子点管，设有内管、套设于内管外部的外管、及穿过内管内部的数条光纤，内管和外管之间封装有红色量子点和绿色量子点，并通过封装胶将内管和外管的两端进行密封，同时可固定光纤，光纤的两端与蓝色LED光源耦合连接，所述光纤为去除外包层的光纤，从而使得所述LED光源发出的蓝光从光纤中射出，并穿过内管的管壁，分别激发红色量子点和绿色量子点发出红光和绿光，所述红光、绿光和未被吸收的蓝光混合成白光，并穿过所述外管的管壁射出，形成白色光源；通过光纤的设置增大了LED光源与量子点之间的距离，避免了LED光源产生的热量对量子点的影响，从而提升了量子点的使用寿命及效率；同时通过利用内管和外管进行封装，减少了量子点的用量，降低了量子点管的生产成本。本发明的液晶显示装置，包括背光模组及液晶面板，背光模组采用上 述量子点管提供光源，量子点的使用寿命长、效率高，且成本低，可大幅提升液晶显示装置的色域。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本发明后附的权利要求的保护范围。

Claims (11)

  1. 一种量子点管，包括内管、套设于所述内管外部的外管、穿过所述内管内部的数条光纤、连接于所述光纤两端的LED光源、用于密封所述内管与外管两端开口的封装胶、及封装于所述内管与外管之间的量子点；
    所述量子点包括红色量子点、及绿色量子点；所述LED光源为蓝色LED光源；所述光纤为去除外包层的光纤，从而使得所述LED光源发出的蓝光从光纤中射出，并穿过内管的管壁，分别激发红色量子点和绿色量子点发出红光和绿光，所述红光、绿光和未被吸收的蓝光混合成白光，并穿过所述外管的管壁射出，形成白色光源。
  2. 如权利要求1所述的量子点管，其中，所述内管、外管均为玻璃管。
  3. 如权利要求1所述的量子点管，其中，所述内管与外管同轴设置。
  4. 如权利要求1所述的量子点管，其中，所述光纤的外包层通过镭射的方法去除。
  5. 如权利要求1所述的量子点管，其中，所述光纤通过耦合器与所述LED光源耦合连接。
  6. 一种液晶显示装置，包括背光模组、及设于所述背光模组上的液晶面板；所述背光模组包括反射板、位于所述反射板上方的导光板、位于所述导光板侧部的量子点管、位于所述导光板上方的扩散板、及位于所述扩散板上方的增亮膜；
    所述量子点管包括内管、套设于所述内管外部的外管、穿过所述内管内部的数条光纤、连接于所述光纤两端的LED光源、用于密封所述内管与外管两端开口的封装胶、及封装于所述内管与外管之间的量子点；所述量子点包括红色量子点、及绿色量子点；所述LED光源为蓝色LED光源；所述光纤为去除外包层的光纤，从而使得所述LED光源发出的蓝光从光纤中射出，并穿过内管的管壁，分别激发红色量子点和绿色量子点发出红光和绿光，所述红光、绿光和未被吸收的蓝光混合成白光，并穿过所述外管的管壁射出，形成白色光源。
  7. 如权利要求6所述的液晶显示装置，其中，所述内管、外管均为玻璃管。
  8. 如权利要求6所述的液晶显示装置，其中，所述内管与外管同轴设置。
  9. 如权利要求6所述的液晶显示装置，其中，所述光纤的外包层通过 镭射的方法去除。
  10. 如权利要求6所述的液晶显示装置，其中，所述光纤通过耦合器与所述LED光源耦合连接。
  11. 一种量子点管，包括内管、套设于所述内管外部的外管、穿过所述内管内部的数条光纤、连接于所述光纤两端的LED光源、用于密封所述内管与外管两端开口的封装胶、及封装于所述内管与外管之间的量子点；
    所述量子点包括红色量子点、及绿色量子点；所述LED光源为蓝色LED光源；所述光纤为去除外包层的光纤，从而使得所述LED光源发出的蓝光从光纤中射出，并穿过内管的管壁，分别激发红色量子点和绿色量子点发出红光和绿光，所述红光、绿光和未被吸收的蓝光混合成白光，并穿过所述外管的管壁射出，形成白色光源；
    其中，所述内管、外管均为玻璃管；
    其中，所述内管与外管同轴设置；
    其中，所述光纤的外包层通过镭射的方法去除；
    其中，所述光纤通过耦合器与所述LED光源耦合连接。
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