WO2019205954A1 - 背光模组、液晶显示模组以及液晶显示装置 - Google Patents

背光模组、液晶显示模组以及液晶显示装置 Download PDF

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Publication number
WO2019205954A1
WO2019205954A1 PCT/CN2019/082355 CN2019082355W WO2019205954A1 WO 2019205954 A1 WO2019205954 A1 WO 2019205954A1 CN 2019082355 W CN2019082355 W CN 2019082355W WO 2019205954 A1 WO2019205954 A1 WO 2019205954A1
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Prior art keywords
backlight module
shaped groove
light
liquid crystal
crystal display
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PCT/CN2019/082355
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English (en)
French (fr)
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杨凯
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京东方科技集团股份有限公司
合肥京东方视讯科技有限公司
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Publication of WO2019205954A1 publication Critical patent/WO2019205954A1/zh

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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

Definitions

  • the present disclosure relates to a backlight module, a liquid crystal display module, and a liquid crystal display device.
  • the NTSC color gamut (National Television Standards Committee) of the mainstream liquid crystal display device is generally around 72%.
  • the quantum dot backlight in the past two years. Module technology has been favored by many manufacturers.
  • a quantum dot is a nanomaterial whose particle diameter is generally between 1 nm and 10 nm. Quantum dots of different particle diameters can emit light of different wavelengths after being excited, so the color gamut of the light source can be changed.
  • the quantum dot is used in the backlight module technology to increase the NTCS color gamut level of the display from the current 72% to more than 100%.
  • the quantum dot technology in the backlight module mainly has two technical directions: one is to encapsulate the quantum dot material into a cylindrical quantum tube and then placed in front of the blue LED; the second is to use the quantum dot material and the polyester material. Together, they are fabricated into a quantum dot film, and the quantum dot film is placed as a separate film in the backlight module.
  • An embodiment of the present disclosure provides a backlight module, including: a back plate, a light guide plate disposed on the back plate, and a light bar assembly, wherein the light bar assembly is disposed at a side of the light guide plate;
  • the light bar assembly includes: a U-shaped groove opening toward the light guide plate, a light-emitting member fixed to an inner bottom surface of the U-shaped groove, and a quantum dot film disposed at an opening in the U-shaped groove.
  • the light emitting part includes a circuit board, and a light emitting diode on the circuit board, a side of the circuit board opposite to a side on which the light emitting diode is disposed is Fixed to the inner bottom surface of the U-shaped groove.
  • the light emitting diode is a blue light emitting diode.
  • the circuit board is adhered to the inner bottom surface of the U-shaped groove by the first double-sided tape.
  • the first double-sided tape is a thermally conductive double-sided tape.
  • the U-shaped groove is further coated with a white reflective material on other inner sides than the inner bottom surface.
  • both ends of the U-shaped groove are respectively provided with a step structure, and the quantum dot film is disposed on the step structure of the U-shaped groove to make the quantum A dot diaphragm covers the opening of the U-shaped groove.
  • a surface of the step structure facing the light guide plate is provided with a second double-sided tape, and the quantum dot film is pasted to the The step structure of the U-shaped groove is described.
  • the material of the quantum dot film includes a quantum dot material and a polyester material.
  • a reflective sheet is further disposed between the back plate and the light guide plate.
  • the embodiment of the present disclosure further provides a liquid crystal display module, including the backlight module provided by the embodiment of the present disclosure, further comprising a liquid crystal display panel, wherein the liquid crystal display panel is disposed on a light emitting surface of the backlight module One side.
  • An embodiment of the present disclosure further provides a liquid crystal display device including the liquid crystal display module provided by the embodiment of the present disclosure.
  • FIG. 1 is a schematic structural diagram of a backlight module according to an embodiment of the present disclosure
  • FIG. 2 is a schematic structural diagram of a light bar assembly provided by an embodiment of the present disclosure
  • FIG. 3 is a schematic structural diagram of a specific light bar assembly provided by an embodiment of the present disclosure.
  • FIG. 4 is a schematic structural diagram of a light bar assembly provided with a white light reflective material according to an embodiment of the present disclosure
  • FIG. 5 is a schematic structural diagram of a light bar assembly provided with a step structure according to an embodiment of the present disclosure
  • FIG. 6 is a schematic structural diagram of a backlight module provided with a retroreflective sheeting according to an embodiment of the present disclosure
  • FIG. 7 is a schematic structural diagram of a liquid crystal display module according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a specific liquid crystal display module according to an embodiment of the present disclosure.
  • an embodiment of the present disclosure provides a backlight module including: a back plate 1 , a light guide plate 2 disposed on the back plate 1 , and a light bar assembly 3 , wherein the light bar assembly 3 It is disposed on the side of the light guide plate 2.
  • 2 is a schematic structural view of the light bar assembly 3 of FIG. 1.
  • the light bar assembly 3 includes a U-shaped groove 31 opening toward the light guide plate 2, and a light-emitting component fixed to the inner bottom surface of the U-shaped groove 31. 32.
  • a quantum dot diaphragm 33 disposed at an opening in the U-shaped groove 31.
  • the backlight module provided by the embodiment of the present disclosure includes: a backboard, a light guide plate disposed on the backboard, and a light bar assembly, the light bar assembly includes: a U-shaped slot opening toward the light guide plate, fixed to the U-shaped groove The light-emitting member on the inner bottom surface is provided with a quantum dot film at the opening in the U-shaped groove 31.
  • the backlight module according to the embodiment of the present disclosure operates, light emitted from the light emitting part excites the quantum dot film to emit light, and light emitted from the quantum dot film 33 is incident on the light guide plate.
  • the quantum dot can be fully utilized to achieve the advantage of high color gamut, and compared to setting a large quantum dot module in the backlight module,
  • the use of quantum dots can be reduced, and the use of less quantum dot materials can be achieved to achieve a high color gamut display effect on the liquid crystal display panel.
  • the light bar assembly is used as one component, which greatly simplifies the structural design, and the light bar assembly of this type can also achieve good product versatility.
  • the light-emitting component 32 may specifically include a circuit board 323, and a light-emitting diode 321 located on the circuit board 323.
  • the side of the circuit board 323 opposite to the side on which the light-emitting diode 321 is disposed is fixed. It goes to the inner bottom surface of the U-shaped groove 31.
  • the circuit board 323 is pasted to the inner bottom surface of the U-shaped groove by the first double-sided tape 322.
  • the light emitting diode 321 is a blue light emitting diode.
  • the circuit board 323 may specifically be a PCB circuit board having one side for arranging the light emitting diodes and the other side being fixed to the inner bottom surface of the U-shaped groove 31.
  • high color gamut white light can be emitted by the blue light diode excitation light quantum dot diaphragm illumination.
  • the first double-sided tape 322 is a heat-conductive double-sided tape.
  • the heat-conductive double-sided tape can play the role of the fixed circuit board, and can also quickly transfer the heat in the cavity of the U-shaped groove to avoid the temperature in the cavity of the U-shaped groove. High enough that the illuminating components are not working properly.
  • the circuit board 323 can be fixed to the inner bottom surface of the U-shaped groove 31 by other means.
  • the circuit board 323 can be fixed by a fastener or a card structure or the like.
  • the U-shaped groove 31 is further coated with a white reflective material 35 on the inner side except the inner bottom surface.
  • the white reflective material 35 can enhance the utilization of light energy, so that the light generated by the light-emitting component is irradiated to the light guide plate as much as possible.
  • the two ends of the U-shaped groove 31 are respectively provided with a step structure 36, and the quantum dot film 33 is disposed on the step structure 36 of the U-shaped groove 31 to make the quantum dot film 33
  • the opening of the U-shaped groove 31 is covered.
  • the surface of the step structure 36 is provided with a second double-sided tape 34 on the surface of the light guide plate 2, and the quantum dot film 33 is adhered to the step structure 36 of the U-shaped groove 31 through the second double-sided tape 34.
  • the step structure 36 can paste the quantum dot film 33 onto the U-shaped groove 31 on the one hand, and the light guide plate 2 on the other hand when the light bar assembly is subsequently assembled into the backlight module. The limit is applied to prevent the light guide plate 2 from being pressed to the light bar assembly 3.
  • the quantum dot film 33 can be fixed to the opening of the U-shaped groove 31 by other means.
  • the quantum dot diaphragm 33 can be fixed by means of a fastener or a card structure.
  • the material of the quantum dot film 33 includes a quantum dot material and a polyester material.
  • a reflective sheet 4 is further disposed between the back plate 1 and the light guide plate 2.
  • the embodiment of the present disclosure further provides a liquid crystal display module.
  • the backlight module provided by the embodiment of the present disclosure further includes a liquid crystal display panel 7 , and the liquid crystal display panel 7 is disposed on the backlight module. One side.
  • the liquid crystal display module further includes: an optical film assembly 5 located on the light guide plate 2 and a plastic frame 6 .
  • the liquid crystal display panel 7 is located on the plastic frame 6 , and the plastic frame 6 is A cushion rubber strip 8 is also disposed between the liquid crystal display panels 7.
  • the plastic frame 6 is used for fixing the light guide plate 2, the optical film combination 5, and supporting the liquid crystal display panel 7.
  • the back plate 1 serves to support the entire module.
  • the reflection sheet 4 is for reflecting the light emitted from the light guide plate 2, and improving the utilization of the light energy.
  • the optical patch combination 5 is used to change the distribution of light energy and to increase the energy of the light energy on the front side of the display.
  • the liquid crystal display panel 7 is used to selectively pass RGB light to present a high color gamut picture.
  • the cushion rubber strip 8 serves to protect the liquid crystal display panel 7.
  • the light bar assembly 3 is fixed on any side or sides of the light guide plate 2 in the backlight module, and the high color gamut light emitted from the light bar assembly 3 is incident on the light guide plate 2, and is then injected into the optical film combination through the action of the light guide plate 2. 5 and the liquid crystal display panel 7.
  • An embodiment of the present disclosure further provides a liquid crystal display device including the liquid crystal display module provided by the embodiment of the present disclosure.
  • the backlight module provided by the embodiment of the present disclosure includes: a backboard, a light guide plate disposed on the backboard, and a light bar assembly, and the light bar assembly includes: a U facing the light guide plate a groove, a light-emitting member fixed to the inner bottom surface of the U-shaped groove, a quantum dot diaphragm disposed at an opening in the U-shaped groove, and light emitted from the light-emitting member excites the quantum dot film to emit light, and is emitted by the quantum dot film Light is incident on the light guide plate.
  • the quantum dot can be fully utilized to achieve the advantage of high color gamut, and compared to setting a large quantum dot module in the backlight module,
  • the use of quantum dots can be reduced, and the use of less quantum dot materials can be achieved to achieve a high color gamut display effect on the liquid crystal display panel.
  • the light bar assembly is used as one component, which greatly simplifies the structural design, and the light bar assembly of this type can also achieve good product versatility.

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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)
  • Planar Illumination Modules (AREA)

Abstract

一种背光模组、液晶显示模组以及液晶显示装置。背光模组包括：背板(1)、设置在背板(1)之上的导光板(2)以及灯条组件(3)，其中，灯条组件(3)设置在导光板(2)的侧边；灯条组件(3)包括：开口朝向导光板(2)的U型槽(31)，固定在U型槽(31)的内底面的发光部件(32)，设置在U型槽(31)内的开口处的量子点膜片(33)。

Description

背光模组、液晶显示模组以及液晶显示装置
相关申请的交叉引用
本申请要求于2018年04月26日递交的中国专利申请201810384344.5号的优先权。该申请的公开被通过全文引用结合在这里。
技术领域
本公开涉及背光模组、液晶显示模组以及液晶显示装置。
背景技术
目前，主流液晶显示器件(Liquid Crysta1 Disp1ay，LCD)的NTSC色域(National Television Standards Committee，国家电视标准委员会)一般在72％左右，为了提升显示器的显示质量和用户体验，近两年量子点背光模组技术得到了很多厂商的青睐。量子点是一种纳米材料，其粒子直径一般在1nm-10nm之间，不同粒子直径的量子点在受激发后可以发出不同波段的光，所以可以改变光源的色域。
量子点运用于背光模组技术中，可以把显示器的NTCS色域水平从目前的72％左右提升至100％以上。背光模组中的量子点技术主要有两个技术方向：其一，是将量子点材料封装到圆柱形量子管中，然后置于蓝光LED之前；其二，是将量子点材料和聚酯材料一起制作成量子点膜，将量子点膜作为一张单独的膜片放置于背光模组中。
发明内容
本公开的实施例提供一种背光模组，包括：背板、设置在所述背板之上的导光板以及灯条组件，其中，所述灯条组件设置在所述导光板的侧边；
所述灯条组件包括：开口朝向所述导光板的U型槽，固定在所述U型槽的内底面的发光部件，设置在所述U型槽内的开口处的量子点膜片。
在本公开的一个或多个实施例中，所述发光部件包括电路板，以及位于所述电路板上的发光二极管，所述电路板的与设置所述发光二极管的一侧相反的一侧被固定到所述U型槽的内底面。
在本公开的一个或多个实施例中，所述发光二极管为蓝光发光二极管。
在本公开的一个或多个实施例中，所述电路板通过第一双面胶粘贴到U型槽的内底面。
在本公开的一个或多个实施例中，所述第一双面胶为导热双面胶。
在本公开的一个或多个实施例中，所述U型槽在除所述内底面以外的其它内侧面还涂覆有白色反光材料。
在本公开的一个或多个实施例中，所述U型槽的两端部各设置有台阶结构，所述量子点膜片设置在所述U型槽的台阶结构上，以使所述量子点膜片覆盖所述U型槽的开口。
在本公开的一个或多个实施例中，所述台阶结构的面向所述导光板的面设置有第二双面胶，所述量子点膜片通过所述第二双面胶粘贴到所述U型槽的台阶结构上。
在本公开的一个或多个实施例中，所述量子点膜片的材质包括量子点材料和聚酯材料。
在本公开的一个或多个实施例中，所述背板与所述导光板之间还设置有反射片。
本公开的实施例还提供了一种液晶显示模组，包括本公开的实施例提供的所述背光模组，还包括液晶显示面板，所述液晶显示面板设置于所述背光模组的出光面一侧。
本公开的实施例还提供了一种液晶显示装置，包括本公开的实施例提供的所述液晶显示模组。
附图说明
图1为本公开的实施例提供的背光模组的结构示意图；
图2为本公开的实施例提供的灯条组件的结构示意图；
图3为本公开的实施例提供的具体的灯条组件的结构示意图；
图4为本公开的实施例提供的设置有白光反光材料的灯条组件的结构示意图；
图5为本公开的实施例提供的设置有台阶结构的灯条组件的结构示意图；
图6为本公开的实施例提供的设置有反光片的背光模组的结构示意图；
图7为本公开的实施例提供的液晶显示模组的结构示意图；
图8为本公开的实施例提供的具体的液晶显示模组的结构示意图。
具体实施方式
为了使得本公开的实施例的目的、技术方案和优点更加清楚，下面将结合本公开的实施例的附图，对本公开的实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本公开的一部分实施例，而不是全部的实施例。基于所描述的本公开的实施例，本领 域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本公开保护的范围。
除非另外定义，本公开使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。“包括”或者“包含”等类似的词语意指出现该词前面的元件或者物件涵盖出现在该词后面列举的元件或者物件及其等同，而不排除其他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。“上”、“下”、“左”、“右”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也可能相应地改变。
为了保持本公开的实施例的以下说明清楚且简明，本公开省略了已知功能和已知部件的详细说明。
参见图1和图2所示，本公开的实施例提供一种背光模组，包括：背板1、设置在背板1之上的导光板2以及灯条组件3，其中，灯条组件3设置在导光板2的侧面。图2为图1的灯条组件3的具体结构示意图，如图2所示，灯条组件3包括：开口朝向导光板2的U型槽31，固定在U型槽31的内底面的发光部件32，设置在U型槽31内的开口处的量子点膜片33。在根据本公开的实施例的背光模组工作时，发光部件32发射的光可以激发量子点膜片33发光，并且由量子点膜片33发射的光入射到导光板2。
本公开的实施例提供的背光模组，包括：背板、设置在背板之上的导光板以及灯条组件，灯条组件包括：开口朝向导光板的U型槽，固定在U型槽的内底面的发光部件，设置在U型槽31内的开口处的量子点膜片。在根据本公开的实施例的背光模组工作时，发光部件发射的光激发量子点膜片发光，并且由量子点膜片33发射的光入射到导光板。通过将发光部件和量子点膜片集成到一个灯条组件中，充分利用了量子点可以实现高色域的优势，且相比于在背光模组中设置一大整张的量子点模组，可以减少量子点的使用量，进而可以实现使用较少的量子点材料使液晶显示面板实现高色域的显示效果。而且，本公开的实施例中，在设计背光模组时，将灯条组件作为一个部件，大大简化了结构方面的设计，且该种类型的灯条组件也可实现很好的产品通用性。
在具体实施时，参见图3所示，发光部件32具体可以包括电路板323，以及位于电路板323上的发光二极管321，电路板323的与设置发光二极管321的一侧相反的一侧被固定 到U型槽31的内底面。例如，电路板323通过第一双面胶322粘贴到U型槽的内底面。在本公开的一个或多个实施例中，发光二极管321为蓝光发光二极管。电路板323具体可以为PCB电路板，其一面用于设置发光二极管，另一面被固定到U型槽31的内底面。本公开的实施例中，通过蓝光二极管激发光量子点膜片发光，可以发出高色域白光。
在具体实施时，第一双面胶322为导热双面胶。本公开的实施例中，导热双面胶可以在起到固定电路板的作用的同时，另外还能将U型槽的腔内热量迅速的传到出去，避免U型槽的腔内的温度过高而致使发光部件不能正常工作。
除了使用第一双面胶322之外，还可以通过其他方式将电路板323固定到U型槽31的内底面。例如，可以通过紧固件或卡位结构等方式来固定电路板323。
在具体实施时，参见图4所示，U型槽31在除内底面以外的其它内侧面还涂覆有白色反光材料35。本公开的实施例中，白色反光材料35可以提升光能的利用率，使发光部件产生的光尽可能地照射到导光板上。
在具体实施时，参见图5所示，U型槽31的两端部各设置有台阶结构36，量子点膜片33设置在U型槽31的台阶结构36上，以使量子点膜片33覆盖U型槽31的开口。台阶结构36的面向导光板2的面设置有第二双面胶34，量子点膜片33通过第二双面胶34粘贴到U型槽31的台阶结构36上。本公开的实施例中，台阶结构36一方面可以将量子点膜片33粘贴到U型凹槽31上，另一方面在后续将灯条组件装配到背光模组中时可以对导光板2起到限位作用，从而防止导光板2挤压到灯条组件3。
除了使用第二双面胶34之外，还可以通过其他方式将量子点膜片33固定到U型槽31的开口。例如，可以通过紧固件或卡位结构等方式来固定量子点膜片33。
在具体实施时，量子点膜片33的材质包括量子点材料和聚酯材料。
在具体实施时，参见图6所示，背板1与导光板2之间还设置有反射片4。
本公开的实施例还提供一种液晶显示模组，参见图7所示，包括本公开的实施例提供的背光模组，还包括液晶显示面板7，液晶显示面板7设置于背光模组的出光面一侧。
在具体实施时，参见图8所示，液晶显示模组还包括：位于导光板2之上的光学膜片组合5以及胶框6，液晶显示面板7位于胶框6之上，胶框6与液晶显示面板7之间还设置有缓冲橡胶条8。胶框6用于固定导光板2、光学膜片组合5，以及对液晶显示面板7起到支撑作用。背板1用于对整个模组起到支撑的作用。反射片4用于反射从导光板2中射出的光线，提升对光能的利用率。光学膜片组合5用于改变光能的分布，提升光能在显示器 正面的能量。液晶显示面板7用于选择性通过RGB光线，呈现高色域画面。缓冲橡胶条8用于对液晶显示面板7起到保护作用。灯条组件3在背光模组中固定于导光板2的任意一侧或多侧，其发出的高色域光线射入到导光板2中，经由导光板2的作用再射入光学膜片组合5和液晶显示面板7中。
本公开的实施例还提供一种液晶显示装置，包括本公开的实施例提供的液晶显示模组。
本公开的实施例有益效果如下：本公开的实施例提供的背光模组，包括：背板、设置在背板之上的导光板以及灯条组件，灯条组件包括：开口朝向导光板的U型槽，固定在U型槽的内底面的发光部件，设置在U型槽内的开口处的量子点膜片，发光部件发射的光激发量子点膜片发光，并且由量子点膜片发射的光入射到导光板。通过将发光部件和量子点膜片集成到一个灯条组件中，充分利用了量子点可以实现高色域的优势，且相比于在背光模组中设置一大整张的量子点模组，可以减少量子点的使用量，进而可以实现使用较少的量子点材料使液晶显示面板实现高色域的显示效果。而且，本公开的实施例中，在设计背光模组时，将灯条组件作为一个部件，大大简化了结构方面的设计，且该种类型的灯条组件也可实现很好的产品通用性。
显然，本领域的技术人员可以对本公开进行各种改动和变型而不脱离本公开的精神和范围。这样，倘若本公开的这些修改和变型属于本公开权利要求及其等同技术的范围之内，则本公开也意图包含这些改动和变型在内。

Claims (12)

  1. 一种背光模组，包括：背板、设置在所述背板之上的导光板以及灯条组件，其中，所述灯条组件设置在所述导光板的侧边；
    所述灯条组件包括：开口朝向所述导光板的U型槽，固定在所述U型槽的内底面的发光部件，设置在所述U型槽内的开口处的量子点膜片。
  2. 如权利要求1所述的背光模组，其中，所述发光部件包括电路板，以及位于所述电路板上的发光二极管，所述电路板的与设置所述发光二极管的一侧相反的一侧被固定到所述U型槽的内底面。
  3. 如权利要求2所述的背光模组，其中，所述发光二极管为蓝光发光二极管。
  4. 如权利要求2所述的背光模组，其中，所述电路板通过第一双面胶粘贴到U型槽的内底面。
  5. 如权利要求4所述的背光模组，其中，所述第一双面胶为导热双面胶。
  6. 如权利要求1所述的背光模组，其中，所述U型槽在除所述内底面以外的其它内侧面还涂覆有白色反光材料。
  7. 如权利要求1所述的背光模组，其中，所述U型槽的两端部各设置有台阶结构，所述量子点膜片设置在所述U型槽的台阶结构上，以使所述量子点膜片覆盖所述U型槽的开口。
  8. 如权利要求7所述的背光模组，其中，所述台阶结构的面向所述导光板的面设置有第二双面胶，所述量子点膜片通过所述第二双面胶粘贴到所述U型槽的台阶结构上。
  9. 如权利要求1所述的背光模组，其中，所述量子点膜片的材质包括量子点材料和聚 酯材料。
  10. 如权利要求1所述的背光模组，其中，所述背板与所述导光板之间还设置有反射片。
  11. 一种液晶显示模组，其中，包括如权利要求1～10任一权项所述的背光模组，还包括液晶显示面板，所述液晶显示面板设置于所述背光模组的出光面一侧。
  12. 一种液晶显示装置，其中，包括如权利要求11所述的液晶显示模组。
PCT/CN2019/082355 2018-04-26 2019-04-12 背光模组、液晶显示模组以及液晶显示装置 WO2019205954A1 (zh)

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Publication number Priority date Publication date Assignee Title
CN108563070A (zh) * 2018-04-26 2018-09-21 合肥京东方视讯科技有限公司 一种背光模组、液晶显示模组以及液晶显示装置
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102937268A (zh) * 2012-11-15 2013-02-20 京东方科技集团股份有限公司 一种导光板、背光模组和显示装置
CN102954408A (zh) * 2011-08-26 2013-03-06 三星电子株式会社 背光单元及其制造方法和具有背光单元的液晶显示装置
WO2014132726A1 (ja) * 2013-02-28 2014-09-04 Ｎｓマテリアルズ株式会社 液晶表示装置
CN104456191A (zh) * 2014-11-14 2015-03-25 深圳市华星光电技术有限公司 背光模块及液晶显示装置
CN105090834A (zh) * 2015-08-26 2015-11-25 创维液晶器件(深圳)有限公司 背光模块和液晶显示装置
KR101604096B1 (ko) * 2010-01-04 2016-03-16 엘지이노텍 주식회사 백라이트 장치
CN108563070A (zh) * 2018-04-26 2018-09-21 合肥京东方视讯科技有限公司 一种背光模组、液晶显示模组以及液晶显示装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110012246A (ko) * 2009-07-30 2011-02-09 엘지이노텍 주식회사 백라이트 유닛
CN103775925B (zh) * 2014-02-25 2016-06-01 深圳市华星光电技术有限公司 背光模组
CN103823320B (zh) * 2014-03-14 2017-01-18 深圳市华星光电技术有限公司 背光模组
CN104503135A (zh) * 2014-12-19 2015-04-08 青岛海信电器股份有限公司 一种光源组件、显示模组及显示装置
CN105446002B (zh) * 2015-11-17 2018-11-23 武汉华星光电技术有限公司 显示器及其背光模组
CN105676535A (zh) * 2016-04-01 2016-06-15 深圳市华星光电技术有限公司 一种背光模组及液晶显示装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101604096B1 (ko) * 2010-01-04 2016-03-16 엘지이노텍 주식회사 백라이트 장치
CN102954408A (zh) * 2011-08-26 2013-03-06 三星电子株式会社 背光单元及其制造方法和具有背光单元的液晶显示装置
CN102937268A (zh) * 2012-11-15 2013-02-20 京东方科技集团股份有限公司 一种导光板、背光模组和显示装置
WO2014132726A1 (ja) * 2013-02-28 2014-09-04 Ｎｓマテリアルズ株式会社 液晶表示装置
CN104456191A (zh) * 2014-11-14 2015-03-25 深圳市华星光电技术有限公司 背光模块及液晶显示装置
CN105090834A (zh) * 2015-08-26 2015-11-25 创维液晶器件(深圳)有限公司 背光模块和液晶显示装置
CN108563070A (zh) * 2018-04-26 2018-09-21 合肥京东方视讯科技有限公司 一种背光模组、液晶显示模组以及液晶显示装置

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