WO2019007296A1 - 侧入式背光模组及显示装置 - Google Patents

侧入式背光模组及显示装置 Download PDF

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Publication number
WO2019007296A1
WO2019007296A1 PCT/CN2018/093959 CN2018093959W WO2019007296A1 WO 2019007296 A1 WO2019007296 A1 WO 2019007296A1 CN 2018093959 W CN2018093959 W CN 2018093959W WO 2019007296 A1 WO2019007296 A1 WO 2019007296A1
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Prior art keywords
quantum dot
reflective film
backlight module
dot material
guide plate
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PCT/CN2018/093959
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English (en)
French (fr)
Inventor
许怀书
强科文
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Shenzhen TCL New Technology Co Ltd
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Shenzhen TCL New Technology Co Ltd
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0055—Reflecting element, sheet or layer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors

Definitions

  • the present application relates to the field of display technologies, and in particular, to a side-lit backlight module and a display device.
  • the side-lit backlight module generally includes a back plate, a middle frame, a reflective film, a light guide plate, and a light source.
  • the light guide plate is fixed on the back plate through the middle frame, and the light-emitting surface of the light guide plate is disposed opposite to the side of the back plate.
  • the light source is fixed to one side of the light guide plate for providing incident light.
  • the reflective film is disposed away from the light-emitting surface side of the light guide plate, and the reflective film is provided with a dot for uniform light.
  • a quantum dot can be used in a display device to obtain a backlight with a wider color gamut.
  • existing side-lit backlight modules mostly use quantum tubes or quantum films to encapsulate quantum dots.
  • the quantum film method since the light emitted from the light guide plate needs to pass through the quantum film and then exit, the quantum film needs to use a large amount of quantum dot materials, resulting in an increase in cost.
  • the quantum tube method When the quantum tube method is adopted, the quantum tube needs to be fixed by an additional device, and the quantum tube is more susceptible to damage due to shock or vibration, resulting in an increase in cost.
  • the production cost of a quantum dot applied to a display device is high.
  • the main purpose of the present application is to provide a side-entry backlight module and a display device, which aim to reduce the manufacturing cost when the display device uses quantum dots.
  • the edge-lit backlight module of the present application includes a back plate, a light guide plate and a reflective film, the light guide plate and a reflective film are mounted on the back plate, and the reflective film has a surface facing the light guide plate.
  • the first surface of the reflective film is coated with a wavelength conversion layer, and the wavelength conversion layer is a mixture of a quantum dot material and a UV glue.
  • the backlight module further includes a light source disposed on the back plate and on a side of the light guide plate, and a density of the quantum dot material in the wavelength conversion layer is adjacent to the light source along the light guide plate. One end is incremented toward one end away from the light source.
  • the wavelength conversion layer is arranged in a dot shape, and the density of the dot of any region is proportional to the distance between the mesh point and the light source.
  • the density of the quantum dot material is perpendicular to the reflective film on the reflective film, and adjacent two of the dots are equal in density.
  • the dots are formed by quantum dot material and UV glue on the first surface of the reflective film by silk screen printing.
  • the light source is a blue light source
  • the quantum dot material is formed by mixing a red quantum dot material and a green quantum dot material.
  • a mixing ratio of the green quantum dot material to the red quantum dot material is greater than or equal to 3.
  • the wavelength conversion layer further comprises a water oxygen barrier agent coated on an outer surface of the quantum dot material.
  • the wavelength conversion layer further comprises a water oxygen barrier agent mixed with the quantum dot material and cured on the first surface of the reflective film by the UV glue.
  • the present application further provides a display device, the display device includes a side-entry backlight module, the side-entry backlight module includes a back plate, a light guide plate and a reflective film, and the light guide plate and the reflective film are mounted on the
  • the reflective film has a first surface disposed facing the light guide plate, and the first surface of the reflective film is coated with a wavelength conversion layer, and the wavelength conversion layer is a mixture of a quantum dot material and a UV glue. mixture.
  • the light source of the side-lit backlight module of the present application emits incident light, and the incident light is diffusely reflected in the light guide plate.
  • the excitation is first set on the reflective film.
  • a wavelength conversion layer of the surface the wavelength conversion layer generates excited light, and the excited light re-enters the light guide plate to form a mixed light with the diffuse reflection light in the light guide plate.
  • the wavelength conversion layer coated on the first surface of the reflective film can continuously and stably generate the excited light.
  • the quantum dot material in the wavelength conversion layer is mixed by UV glue to form a mixture to be solidified on the first surface of the reflective film to prevent the wavelength conversion layer from falling off, and the quantum dot material has a half width (FWHM) narrow after receiving the excitation light.
  • the monochromatic purity of the excited light increases the color gamut of the mixed light, making the quantum dot material suitable for use in the side-lit backlight module. Since the coated quantum dot material saves a large amount of quantum dot material compared to the encapsulated quantum film or quantum tube, the manufacturing cost when the quantum dot is applied to the display device is reduced.
  • FIG. 1 is a schematic diagram of an internal structure of an embodiment of a side-lit backlight module of the present application
  • FIG. 2 is a schematic view showing the internal structure of the wavelength conversion layer of FIG. 1;
  • Figure 3 is a distribution diagram of the dot on the reflective film of Figure 1;
  • Figure 4 is a front elevational view of the reflective film of Figure 1.
  • Label name Label name 10 Light guide 222 Red quantum dot material 20 Reflective film 223 Green quantum dot material twenty one First surface 224 Barrier twenty two Wavelength conversion layer 30 light source 221 Network
  • the directional indication is only used to explain in a certain posture (as shown in the drawing)
  • first”, “second”, etc. in the embodiments of the present application, the description of "first”, “second”, etc. is used for descriptive purposes only, and is not to be construed as an Its relative importance or implicit indication of the number of technical features indicated.
  • features defining “first” and “second” may include at least one of the features, either explicitly or implicitly.
  • the technical solutions between the various embodiments may be combined with each other, but must be based on the realization of those skilled in the art, and when the combination of the technical solutions is contradictory or impossible to implement, it should be considered that the combination of the technical solutions does not exist. Nor is it within the scope of protection required by this application.
  • the present application provides a side-lit backlight module, and a display device including the same.
  • the display device is a television or a computer display. The following is a description of the television.
  • the solid line with an arrow in the figure indicates a plane or a space such as a face, a cavity, a hole, or the like.
  • the side-lit backlight module includes a back plate (not shown), a light guide plate 10 and a reflective film 20, the duct plate 10 and the reflective film 20 are mounted on the back plate, and the reflective film 20 has a first surface disposed on the light guide plate 10.
  • the surface 21, the first surface 21 of the reflective film 20 is coated with a wavelength conversion layer 22, and the wavelength conversion layer 22 is a mixture of a quantum dot material and a UV glue.
  • the light source 30 of the side-lit backlight module emits incident light, and the incident light is diffusely reflected in the light guide plate 10.
  • the excitation setting is performed.
  • the wavelength conversion layer 22 of the first surface 21 of the reflective film 20 the wavelength conversion layer 22 generates excited light, and the excited light re-enters the light guide plate 10 to form mixed light with the diffuse reflection light in the light guide plate 10.
  • the wavelength conversion layer 22 coated on the first surface 21 of the reflective film 20 can continuously generate excited light.
  • the quantum dot material in the wavelength conversion layer 22 is solidified on the first surface 21 of the reflective film 20 by mixing with UV glue to prevent the wavelength conversion layer 22 from falling off, and the quantum dot material generates a half width after receiving the excitation light ( FWHM)
  • FWHM half width after receiving the excitation light
  • the narrow, monochromatic purity of the excited light increases the color gamut of the mixed light, allowing the quantum dot material to be used in the edge-lit backlight module. Since the coated quantum dot material saves a large amount of quantum dot material compared to the encapsulated quantum film or quantum tube, the manufacturing cost when the quantum dot is applied to the display device is reduced.
  • the wavelength conversion layer 22 may include a green light quantum dot material or a red light quantum dot material, and may also include a green light quantum dot material and a red light quantum dot material.
  • the phosphor material may also be included to generate light of other color gamut, which will not be repeated here.
  • the edge-lit backlight module further includes a light source 30 disposed on the back plate and on the side of the light guide plate 10 , and the quantum dot material in the wavelength conversion layer 22 is adjacent to the light source 30 along the light guide plate 10 .
  • One end is incremented toward the end away from the light source 30.
  • the density of the wavelength conversion layer 22 in the light direction V from the sparse to dense distribution, The light energy of the excitation light is evenly distributed.
  • the reflective film 20 disposed in this way can indirectly make the light guide plate 10 do not need to be uniformly distributed in light energy, that is, the light guide plate 10 used in the side-entry backlight module does not need the screen printing of the dot, thereby ensuring the light guide plate 10 Under the premise of uniform light energy, the manufacturing cost when the quantum dot is applied to the display device is further saved.
  • the wavelength conversion layer 22 is disposed in a dot shape, and the density of the dot 221 of any region is proportional to the distance between the dot 221 and the light source 30.
  • the purpose of this arrangement is to further save the quantum dot material, simplify the production, and further enable the wavelength conversion layer 22 to enter the light direction V. As the distance increases, the excited light is easily generated, and the light of the excited light is generated. The energy distribution is more uniform.
  • the density of the vertical quantum dot material is increased on the reflective film 20, and the adjacent two dots 221 are equal in density.
  • the advantage of this arrangement is that the distribution of the light energy in the direction perpendicular to the light incident direction V of the light guide plate 10 can be made more uniform.
  • the dots 221 are formed by the quantum dot material and the UV glue on the first surface 21 of the reflective film 20 by silk screen to improve production efficiency and make the position of the dots 221 more precise.
  • the light source 30 is a blue light source, and the quantum dot material is formed by mixing a red quantum dot material 222 and a green quantum dot material 223. Since the blue light source can be used to further reduce the production cost, and the blue light source is used as the monochromatic incident light, the incident light excites the red quantum dot material 222 in the wavelength conversion layer 22 to generate red excited light. At the same time, the incident light excites the green quantum dot material 223 in the wavelength conversion layer 22 to produce green excited light. The excited white light is mixed with the blue monochromatic incident light to obtain mixed white light. Since the green quantum dot material 223 and the red quantum dot material 222 are excited, green light and red light having a narrow half-width (FWHM) and high monochromatic purity can be obtained, and thus the color gamut of the mixed light is broadened.
  • FWHM narrow half-width
  • the mixing ratio of the green quantum dot material 223 to the red quantum dot material 222 is greater than or equal to 3 times.
  • the mixing ratio of the green quantum dot material 223 and the red quantum dot material 222 is between 3 and 20. This setting makes the mixed white light more uniform.
  • the quantum dot materials in the present application include, but are not limited to, cadmium selenide (CdSe), perovskite (CaTiO 3 ), indium phosphide (InP), etc., to obtain a relatively stable laser.
  • the wavelength conversion layer 22 further includes a water oxygen barrier 224 that coats the outer surface of the quantum dot material.
  • the water oxygen barrier 224 is mixed with the quantum dot material and cured by UV glue to synthesize the wavelength conversion layer 22. Since the high temperature performance of the quantum dot material is weak and the water and oxygen resistance is not good, the quantum dot material can be made more stable by blocking the water oxygen and the high temperature by the barrier agent 224.
  • the material of the barrier agent 224 may be: SiO 2 , TiO 2 , Al 2 O 3 , CaCO 3 , BaSO 4 , polymethyl methacrylate PMMA, polystyrene PS, acrylonitrile-butadiene-styrene copolymer ABS, polyurethane PU One or more of silicone polymers to effectively block water oxygen at higher temperatures.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)

Abstract

本申请公开一种侧入式背光模组，其中，所述侧入式背光模组包括背板、导光板及反射膜，所述导光板和反射膜安装于所述背板上，所述反射膜具有面向所述导光板设置的第一表面，所述反射膜的第一表面涂设有波长转换层，所述波长转换层为量子点材料及UV胶水混合后的混合物。可以提高量子点背光模组系统光效，并降低显示装置应用量子点时的制造成本。

Description

侧入式背光模组及显示装置
技术领域
本申请涉及显示技术领域，特别涉及一种侧入式背光模组及显示装置。
背景技术
侧入式背光模组一般包括背板、中框、反射膜、导光板及光源，导光板通过中框固定在背板上，导光板的出光面背对背板的一侧设置。光源固定在导光板的一侧，用于提供入射光。反射膜背离导光板的出光面一侧设置，反射膜上设有用于匀光的网点。
由于量子点受激发后可以产生半峰宽（FWHM）窄，单色纯度高的受激光，因此，在显示装置中应用量子点，可以获得较宽色域的背光。然而，由于量子点材料的水氧耐受性普遍较差，以至于现有侧入式背光模组多采用量子管，或者量子膜等方式封装量子点。
目前，当采用量子膜方式时，由于导光板的出射光需要经过量子膜后再出射，因此，量子膜需要使用大量的量子点材料，导致成本增加。当采用量子管方式时，量子管需要通过额外的装置进行固定，且量子管较容易受冲击或震动而发生破损，导致成本增加。综上，量子点应用于显示装置的生产成本较高。
发明内容
本申请的主要目的是提出一种侧入式背光模组及显示装置，旨在降低显示装置应用量子点时的制造成本。
为实现上述目的，本申请提出的侧入式背光模组包括背板、导光板及反射膜，所述导光板和反射膜安装于所述背板上，所述反射膜具有面向所述导光板设置的第一表面，所述反射膜的第一表面涂设有波长转换层，所述波长转换层为量子点材料及UV胶水混合后的混合物。
可选地，所述背光模组还包括设置在所述背板上并处于所述导光板一侧的光源，所述波长转换层中的量子点材料的密度沿所述导光板靠近所述光源的一端朝远离所述光源的一端方向递增。
可选地，所述波长转换层呈网点状设置，任一区域网点的密度与所述网点到所述光源之间的距离成正比例关系。
可选地，在所述反射膜上垂直所述量子点材料的密度递增方向，相邻两所述网点等密度设置。
可选地，所述网点由量子点材料及UV胶水通过丝印在所述反射膜的第一表面形成。
可选地，所述光源为蓝光光源，所述量子点材料由红色量子点材料和绿色量子点材料混合形成。
可选地，所述绿色量子点材料与所述红色量子点材料的混合比例大于或者等于3。
可选地，所述波长转换层还包括水氧阻隔剂，所述水氧阻隔剂包覆在所述量子点材料的外表面。
可选地，所述波长转换层还包括水氧阻隔剂，所述水氧阻隔剂与所述量子点材料混合，且通过所述UV胶水固化于所述反射膜的第一表面上。
本申请还提出一种显示装置，所述显示装置包括侧入式背光模组，所述侧入式背光模组包括背板、导光板及反射膜，所述导光板和反射膜安装于所述背板上，所述反射膜具有面向所述导光板设置的第一表面，所述反射膜的第一表面涂设有波长转换层，所述波长转换层为量子点材料及UV胶水混合后的混合物。
本申请的侧入式背光模组的光源发出入射光，入射光在导光板内发生漫反射，导光板内的部分光从靠近反射膜的一侧面入射反射膜时，激发设置在反射膜第一表面的波长转换层，该波长转换层产生受激发光，受激发光重新进入导光板，与导光板内的漫反射光形成混合光。其中，反射膜的第一表面涂设的波长转换层，可以持续稳定地产生受激发光。波长转换层中的量子点材料通过UV胶水混合后形成混合物固化在反射膜的第一表面，以防止波长转换层脱落，并且，量子点材料接收激发光后，产生半峰宽（FWHM）窄，单色纯度高的受激发光，从而增大了混合光的色域范围，使量子点材料应用在侧入式背光模组中。由于涂设的量子点材料相较于封装量子膜或量子管而言，节省了大量的量子点材料，因此，节减了显示装置应用量子点时的制造成本。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图示出的结构获得其他的附图。
图1为本申请的侧入式背光模组一实施例的内部结构示意图；
图2为图1中波长转换层的内部结构示意图；
图3为图1中网点在反射膜上的分布曲线图；
图4为图1中反射膜的正视图。
附图标号说明：
标号 名称 标号 名称
10 导光板 222 红色量子点材料
20 反射膜 223 绿色量子点材料
21 第一表面 224 阻隔剂
22 波长转换层 30 光源
221 网点
本申请目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请的一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
需要说明，若本申请实施例中有涉及方向性指示（诸如上、下、左、右、前、后……），则该方向性指示仅用于解释在某一特定姿态（如附图所示）下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
另外，若本申请实施例中有涉及“第一”、“第二”等的描述，则该“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本申请要求的保护范围之内。
本申请提出一种侧入式背光模组，以及包括该背光模组的显示装置，比如：显示装置是电视机或电脑显示器等，下文以电视机为例作进一步说明。
在本申请侧入式背光模组的第一实施例中，参照图1和图2所示，图中带箭头的实线指示的是面、腔、孔等平面或空间。该侧入式背光模组包括背板（图未示出）、导光板10及反射膜20，导管板10和反射膜20安装于背板上，反射膜20具有面向导光板10设置的第一表面21，反射膜20的第一表面21涂设有波长转换层22，波长转换层22为量子点材料及UV胶水混合后的混合物。
具体地，侧入式背光模组的光源30发出入射光，入射光在导光板10内发生漫反射，导光板10内的部分光从靠近反射膜20的一侧面入射反射膜20时，激发设置在反射膜20第一表面21的波长转换层22，该波长转换层22产生受激发光，受激发光重新进入导光板10，与导光板10内的漫反射光形成混合光。其中，反射膜20的第一表面21涂设的波长转换层22，可以持续稳定地产生受激发光。波长转换层22中的量子点材料通过UV胶水混合后形成混合物固化在反射膜20的第一表面21，以防止波长转换层22脱落，并且，量子点材料接收激发光后，产生半峰宽（FWHM）窄，单色纯度高的受激发光，从而增大了混合光的色域范围，使量子点材料应用在侧入式背光模组中。由于涂设的量子点材料相较于封装量子膜或量子管而言，节省了大量的量子点材料，因此，节减了显示装置应用量子点时的制造成本。
此处需要阐明的是，波长转换层22可以包括绿光量子点材料或者红光量子点材料，也可以包括绿光量子点材料和红光量子点材料。当然，也可以包括荧光粉材料以产生其它色域的光，在此不一一赘述。
可选地，参照图1所示，侧入式背光模组还包括设置在背板上并处于导光板10一侧的光源30，波长转换层22中的量子点材料沿导光板10靠近光源30的一端朝远离光源30的一端方向递增。考虑到波长转换层22靠近光源30的位置光能量较强，而远离光源30的位置光能量较弱，通过将波长转换层22的密度沿入光方向V由疏到密分布设计，可以使受激发光的光能量均匀分布。此外，这样设置的反射膜20，可以间接使导光板10不需要做光能量均匀分布设计，即侧入式背光模组里面所使用的导光板10不需要网点丝印，从而在保证导光板10的光能量均匀的前提下，进一步节省了显示装置应用量子点时的制造成本。
可选地，参照图1和图3所示，波长转换层22呈网点状设置，任一区域网点221的密度与网点221到光源30之间的距离成正比例关系。这样设置的目的在于，既可以进一步节省量子点材料，简化生产，又可以进一步使波长转换层22沿入光方向V，随着距离的增大而容易产生受激发光，使受激发光的光能量分布更为均匀。
可选地，参照图1和图4所示，在反射膜20上垂直量子点材料的密度递增方向，相邻两网点221等密度设置。这样设置的好处是，可以使受激发光沿导光板10的入光方向V垂直的方向上的光能量分布更为均匀。可选地，网点221由量子点材料及UV胶水通过丝印在反射膜20的第一表面21形成，以提高生产效率，使网点221的位置更为精确。
可变更地，参照图1和图2所示，光源30为蓝光光源，量子点材料由红色量子点材料222和绿色量子点材料223混合形成。由于采用蓝光光源可以进一步节减生产成本，且采用蓝光光源为单色入射光，该入射光激发波长转换层22中的红色量子点材料222，产生红色的受激发光。同时，该入射光激发波长转换层22中的绿色量子点材料223，产生绿色的受激发光。受激发光与蓝色的单色入射光混合后得到混合的白光。由于绿色量子点材料223和红色量子点材料222受激发后，可以获得半峰宽（FWHM）窄，单色纯度高的绿光和红光，因此，混合光的色域得到扩宽。
可选地，绿色量子点材料223与红色量子点材料222的混合比例大于或者等于3倍。较佳地，绿色量子点材料223与红色量子点材料222的混合比例为3至20之间。这样设置可以使混合的白光更为均匀。本申请中的量子点材料包括但不限于硒化镉（CdSe），钙钛矿（CaTiO3），磷化铟（InP）等，以获得较为稳定的受激光。
可选地，波长转换层22还包括水氧阻隔剂224，水氧阻隔剂224包覆在量子点材料的外表面。可变更地，水氧阻隔剂224与量子点材料混合，且通过UV胶水固化，以合成波长转换层22。由于量子点材料的高温性能较弱，且水氧的耐受性不好，因此，通过阻隔剂224隔绝水氧及高温，可以使量子点材料更为稳定。阻隔剂224材料可以为：SiO2、TiO2、Al2O3、CaCO3、BaSO4、聚甲基丙烯酸甲酯PMMA、聚苯乙烯PS、烯腈-丁二烯-苯乙烯共聚物ABS、聚氨酯PU、有机硅聚合物中的一种或多种，以在较高温的条件下有效阻隔水氧。
以上所述仅为本申请的优选实施例，并非因此限制本申请的专利范围，凡是在本申请的发明构思下，利用本申请说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本申请的专利保护范围内。

Claims (15)

  1. 一种侧入式背光模组，包括背板、导光板及反射膜，所述导光板和反射膜安装于所述背板上，所述反射膜具有面向所述导光板设置的第一表面，其中，所述反射膜的第一表面涂设有波长转换层，所述波长转换层为量子点材料及UV胶水混合后的混合物。
  2. 如权利要求1所述的侧入式背光模组，其中，所述背光模组还包括设置在所述背板上并处于所述导光板一侧的光源，所述波长转换层中的量子点材料的密度沿所述导光板靠近所述光源的一端朝远离所述光源的一端方向递增。
  3. 如权利要求2所述的侧入式背光模组，其中，所述波长转换层呈网点状设置，任一区域的网点的密度与所述网点到所述光源之间的距离成正比例关系。
  4. 如权利要求3所述的侧入式背光模组，其中，所述网点由量子点材料及UV胶水通过丝印在所述反射膜的第一表面形成。
  5. 如权利要求3所述的侧入式背光模组，其中，在所述反射膜上垂直所述量子点材料的密度递增方向，相邻两所述网点等密度设置。
  6. 如权利要求5所述的侧入式背光模组，其中，所述网点由量子点材料及UV胶水通过丝印在所述反射膜的第一表面形成。
  7. 如权利要求2所述的侧入式背光模组，其中，所述光源为蓝光光源，所述量子点材料由红色量子点材料和绿色量子点材料混合形成。
  8. 如权利要求7所述的侧入式背光模组，其中，所述绿色量子点材料与所述红色量子点材料的混合比例大于或者等于3。
  9. 如权利要求1所述的侧入式背光模组，其中，所述波长转换层还包括水氧阻隔剂，所述水氧阻隔剂包覆在所述量子点材料的外表面。
  10. 如权利要求1所述的侧入式背光模组，其中，所述波长转换层还包括水氧阻隔剂，所述水氧阻隔剂与所述量子点材料混合，且通过所述UV胶水固化于所述反射膜的第一表面上。
  11. 一种显示装置，其中，包括侧入式背光模组，所述侧入式背光模组，包括背板、导光板及反射膜，所述导光板和反射膜安装于所述背板上，所述反射膜具有面向所述导光板设置的第一表面，其中，所述反射膜的第一表面涂设有波长转换层，所述波长转换层为量子点材料及UV胶水混合后的混合物。
  12. 如权利要求11所述的显示装置，其中，所述背光模组还包括设置在所述背板上并处于所述导光板一侧的光源，所述波长转换层中的量子点材料的密度沿所述导光板靠近所述光源的一端朝远离所述光源的一端方向递增
  13. 如权利要求12所述的显示装置，其中，所述波长转换层呈网点状设置，任一区域的网点的密度与所述网点到所述光源之间的距离成正比例关系。
  14. 如权利要求13所述的显示装置，其中，所述网点由量子点材料及UV胶水通过丝印在所述反射膜的第一表面形成。
  15. 如权利要求13所述的显示装置，其中，在所述反射膜上垂直所述量子点材料的密度递增方向，相邻两所述网点等密度设置。
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