WO2020077717A1 - 背光模组及其制造方法 - Google Patents

背光模组及其制造方法 Download PDF

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Publication number
WO2020077717A1
WO2020077717A1 PCT/CN2018/115592 CN2018115592W WO2020077717A1 WO 2020077717 A1 WO2020077717 A1 WO 2020077717A1 CN 2018115592 W CN2018115592 W CN 2018115592W WO 2020077717 A1 WO2020077717 A1 WO 2020077717A1
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WO
WIPO (PCT)
Prior art keywords
backlight module
connecting structure
back plate
plate
diffusion plate
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PCT/CN2018/115592
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English (en)
French (fr)
Inventor
张彦学
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惠州市华星光电技术有限公司
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Publication of WO2020077717A1 publication Critical patent/WO2020077717A1/zh

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Classifications

    • 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
    • G02F1/133602—Direct backlight
    • G02F1/133608—Direct backlight including particular frames or supporting means
    • 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
    • G02F1/133611—Direct backlight including means for improving the brightness uniformity

Definitions

  • the invention relates to the field of display, in particular to a backlight module and a manufacturing method thereof.
  • the backlight module is a back light source component in LCD (Liquid Crystal Display) display products, generally composed of a backlight and multiple layers of backlight materials.
  • the backlight quality of the backlight module directly determines the important parameters such as the brightness of the LCD screen, the uniformity of the emitted light, and the color scale.
  • the light mixing distance (OD value, Optical Distance) in the backlight module that is, the LED (Light Emitting Diode)
  • the distance between the light source and the diffuser is an important factor affecting the brightness and quality of the module.
  • the assembled back plate or diffusion plate is prone to local deformation, resulting in changes in the light mixing distance and even deviation from the design value.
  • the light quality of the backlight module is influenced by manufacturing or assembly tolerances and the like.
  • the existing direct type backlight module technology still has the problem of unstable light mixing distance, which needs urgent improvement.
  • the invention relates to a backlight module and a manufacturing method thereof, which are used to solve the problem of unstable light mixing distance in the prior art.
  • a backlight module provided by the present invention includes: a back plate, a light source, a diffusion plate, and a connecting structure; wherein,
  • the back plate is arranged at the bottom of the entire backlight module
  • the light sources are distributed in an array between the back plate and the diffusion plate to provide a light source for the entire backlight module;
  • the diffusion plate is being set for the back plate
  • the connecting structure is an optically transparent material, which is arranged between the back plate and the diffusion plate, and is used to stabilize the light mixing distance of the backlight module.
  • the back plate is an opaque hard plate
  • the light source is composed of a plurality of lamps arranged in parallel
  • the diffusion plate is a glass containing a diffusion coating board.
  • the diffusion plate, the back plate and the connecting structure all include a first end surface and a second end surface, and the connecting structure further includes a first side surface and a second side surface.
  • ribs are provided on both sides of the connecting structure parallel to the direction of the lamp tube.
  • the ribs are triangular.
  • the height of the rib is equal to the height of the connecting structure.
  • the thickness of the rib is less than or equal to the thickness of the connecting structure.
  • one end of the connecting structure is integrally formed with the diffusion plate or the back plate.
  • the other end of the connecting structure is connected to the back plate or the diffusion plate through optical glue.
  • the connecting structure is cylindrical or rectangular.
  • the present invention also provides another backlight module, the solution is as follows:
  • a backlight module provided by the present invention includes: a back plate, a light source, a diffusion plate, and a connecting structure; wherein,
  • the back plate is arranged at the bottom of the entire backlight module
  • the light sources are distributed in an array between the back plate and the diffusion plate to provide a light source for the entire backlight module;
  • the diffusion plate is being set for the back plate
  • the connecting structure is disposed between the back plate and the diffusion plate, and is used to stabilize the light mixing distance of the backlight module.
  • the back plate is an opaque hard plate
  • the light source is composed of a plurality of lamps arranged in parallel
  • the diffusion plate is a glass containing a diffusion coating board.
  • the diffusion plate, the back plate and the connecting structure all include a first end surface and a second end surface, and the connecting structure further includes a first side surface and a second side surface.
  • ribs are provided on both sides of the connecting structure parallel to the direction of the lamp tube.
  • one end of the connecting structure is integrally formed with the diffusion plate or the back plate.
  • the other end of the connecting structure is connected to the back plate or the diffusion plate through optical glue.
  • the connecting structure is cylindrical or rectangular.
  • the backlight module includes a back plate, a light source, a diffusion plate, and a connecting structure
  • the back plate is disposed at the bottom of the entire backlight module, and the light sources are distributed in an array on the back
  • a light source is provided between the board and the diffusion plate for the entire backlight module
  • the diffusion plate is being arranged for the back plate
  • the connecting structure is provided between the back plate and the diffusion plate for To stabilize the light mixing distance of the backlight module
  • the manufacturing method of the backlight module includes the following steps:
  • the back plate and the diffusion plate do not simultaneously include the connecting structure.
  • the present invention prevents the curved module from bending to change the light mixing distance, and can stabilize the light mixing distance of the entire backlight module.
  • FIG. 1 is a first schematic structural diagram of a backlight module provided by an embodiment of the present invention.
  • FIG. 2 is a second schematic structural diagram of a backlight module provided by an embodiment of the present invention.
  • FIG. 3 is a third schematic structural diagram of a backlight module provided by an embodiment of the present invention.
  • FIG. 4 is a fourth schematic structural diagram of a backlight module provided by an embodiment of the present invention.
  • first and second are used for description purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
  • the features defined as “first” and “second” may explicitly or implicitly include one or more of the features.
  • the meaning of “plurality” is two or more, unless otherwise specifically limited.
  • the present invention provides two preferred embodiments, which will be described in detail with reference to FIGS. 1, 2, 3, and 4 below.
  • FIG. 1 is a first structural view of a backlight module provided by the present invention, that is, a first view of a backlight module in which the back plate and the connecting structure are integrally formed.
  • the first view is perpendicular to the direction of the lamp tube and perpendicular to the direction of the rib plate, that is, the first side and the second side of the connecting structure are arranged parallel to the lamp tube.
  • connection structure 101 is the first end surface of the backplane
  • 102 is the second end surface of the backplane
  • 20 is the connection structure
  • 201 is the first end surface of the connection structure
  • 202 is the The second end face of the connecting structure
  • 203 is the first side of the connecting structure
  • 204 is the second side of the connecting structure 20
  • the first side and the second side are provided with a rib structure
  • 30 It is optical glue
  • 40 is the diffusion plate
  • 401 is the first end surface of the diffusion plate 40
  • 402 is the second end surface of the diffusion plate 40.
  • the first end 101 of the back plate 10 is the first end 201 of the connecting structure.
  • the second end 202 of the connecting structure 20 is adhered to the first end 401 of the diffusion plate 40 through the optical glue 30 Together.
  • FIG. 2 is a second structural view of the backlight module provided by the present invention, that is, a second view of the backlight module in which the back plate and the connecting structure are integrally formed.
  • the second view is parallel to the direction of the lamp tube and the rib.
  • the corresponding structure and position in the figure are the same as those in Figure 1.
  • FIG. 3 is a third structural view of a backlight module provided by the present invention, that is, a first view of the backlight module in which the diffusion plate and the connecting structure are integrally formed.
  • the first view is also perpendicular to the lamp tube direction and the rib plate direction, where 10 is the back plate, 101 is the first end surface of the back plate 10, 102 is the second end surface of the back plate 10, and 20 is Optical adhesive, 30 is the connection structure, 301 is the first end surface of the connection structure 30, 302 is the second end surface of the connection structure 30, 303 is the first side surface of the connection structure 30, 304 is the The second side of the connecting structure 30, the first side and the second side are also provided with a rib structure, 40 is a diffuser plate, 401 is the first end surface of the diffuser plate 40, 402 is the diffuser plate 40 The second end.
  • the first end 401 of the diffusion plate 40 is the second end 301 of the connecting structure.
  • the first end 301 of the connecting structure 20 is adhered to the first
  • FIG. 4 is a fourth structural view of the backlight module provided by the present invention, that is, a second view of the backlight module in which the diffusion plate and the connecting structure are integrally formed, the second view is parallel to the lamp tube and the State the direction of the ribs.
  • the structure and position labels are the same as in Figure 3.
  • the backplane 10 as the chassis of the entire backlight module, plays a supporting and carrying role.
  • the diffusion plate 40 diffuses light as it passes through the diffusion coating, making the light distribution uniform.
  • the light source provides light source for the entire backlight module through power-on. According to different models, it is divided into direct type and side light type.
  • the light sources of direct type backlight modules are mostly distributed in a rectangular grid array.
  • the present invention adds a connection structure formed of optically transparent materials to the structure of the backlight module. By adding this connecting structure, the entire backlight module is not easy to be compressed or stretched. When the back plate or the diffuser is partially stretched and its OD value is about to exceed the design value, the connecting structure adjusts the OD value by the pulling force at both ends.
  • the connecting structure plays a supporting role to ensure that the OD value will not become smaller due to the local deformation of the back plate or diffuser .
  • the present invention chooses to add ribs on both sides of the connecting structure to make the structure more stable. Also, because the ribs have a certain thickness, installing them parallel to the direction of the lamp tube can reduce ghosting and improve light extraction efficiency.
  • a backlight module provided by the present invention includes: a back plate, a light source, a diffusion plate, and a connecting structure; wherein the back plate is provided at the bottom of the entire backlight module; And the diffuser plate to provide a light source for the entire backlight module; the diffuser plate is being set against the back plate; the connecting structure is provided between the back plate and the diffuser plate for To stabilize the light mixing distance of the backlight module.
  • the back plate is an opaque hard plate
  • the light source is composed of a plurality of lamps arranged in parallel
  • the diffusion plate is a glass containing a diffusion coating board.
  • the diffusion plate, the back plate and the connecting structure all include a first end surface and a second end surface
  • the connecting structure further includes a first side surface and a second side surface.
  • the first side and the second side are respectively provided with a first rib and a second rib.
  • ribs are provided on both sides of the connecting structure parallel to the direction of the lamp tube.
  • the height of the ribs is equal to the height of the connecting structure.
  • the thickness of the ribs is less than or equal to the thickness of the connecting structure.
  • the connecting structure is a transparent optical material.
  • one end of the connecting structure is integrally formed with the diffusion plate or the back plate.
  • the other end of the connecting structure is connected to the back plate or the diffusion plate through optical glue.
  • the connecting structure is cylindrical or rectangular.
  • the backlight module includes: a back plate, a light source, a diffusion plate, and a connecting structure, the back plate is disposed at the bottom of the entire backlight module, the light sources are distributed in an array Between the back plate and the diffusion plate, a light source is provided for the entire backlight module.
  • the diffusion plate is being set against the back plate.
  • the connection structure is provided between the back plate and the diffusion plate.
  • the method includes the following steps: S10, providing a backplane or diffusion plate including a connecting structure; S20, installing a lamp on the first end surface of the backplane or diffusion plate Source; S30, providing a backplane or diffusion plate that does not include a connection structure; S40, using optical glue to paste the second end face of the connection structure and the backplate or the diffusion plate together.
  • the back plate and the diffusion plate do not simultaneously include the connecting structure.

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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，包括：背板（10）、光源、扩散板（40）以及衔接结构（20）；背板（10），位于整个背光模组的底部；光源，呈阵列分布于背板（10）和扩散板（40）之间；扩散板（40），正对于背板（10）设置；衔接结构（20），位于背板（10）和扩散板（40）之间，用于稳定整个背光模组的混光距离。有益效果：通过增加衔接结构（20），防止曲面模组弯曲影响混光距离，使得背光模组的混光距离稳定。

Description

背光模组及其制造方法 技术领域
本发明涉及显示领域，特别是涉及背光模组及其制造方法。
 背景技术
背光模组即是提供 LCD (Liquid Crystal Display)显示器产品中的一个背面光源组件，一般由背光源及多层背光材料组成。背光模组的背光质量直接决定了液晶显示屏的亮度、出射光均匀度以及色阶等重要参数。特别地，背光模组中的混光距离（OD值，Optical Distance），也就是 LED (Light Emitting Diode )光源与扩散板之间的距离值，是模组亮度和品质的重要影响因素。但在背光模组装配过程中，由于存在制造或装配公差等情况，装配后的背板或扩散板容易发生局部变形，导致其混光距离发生变化，甚至偏离设计值。严重影响背光模组的出光质量。
因此，现有的直下式背光模组技术，还存在混光距离不稳定的问题，急需改进。
 技术问题
本发明涉及一种背光模组及其制造方法，用于解决现有技术中存在的混光距离不稳定的问题。
 技术解决方案
为解决上述问题，本发明提供的技术方案如下：
本发明提供的一种背光模组，包括：背板、光源、扩散板以及衔接结构；其中，
所述背板，设置于整个背光模组的底部；
所述光源，呈阵列分布于所述背板和所述扩散板之间，为整个背光模组提供光源；
所述扩散板，正对于所述背板进行设置；
所述衔接结构，为光学透明材料，设置于所述背板和所述扩散板之间，用于稳定背光模组的混光距离。
根据本发明提供的一优选实施例，所述背板为一种不透光的硬质板材，所述光源由多条平行设置的灯管组成，所述扩散板为一包含扩散涂层的玻璃板。
根据本发明提供的一优选实施例，所述扩散板、所述背板和所述衔接结构均包含第一端面和第二端面，所述衔接结构还包括第一侧面和第二侧面。
根据本发明提供的一优选实施例，所述衔接结构两侧，平行于所述灯管方向设置有筋板。
根据本发明提供的一优选实施例，所述筋板为三角形。
根据本发明提供的一优选实施例，所述筋板的高度与所述衔接结构的高度相等。
根据本发明提供的一优选实施例，所述筋板的厚度小于或等于所述衔接结构的厚度。
根据本发明提供的一优选实施例，所述衔接结构一端与所述扩散板或是所述背板一体成型。
根据本发明提供的一优选实施例，所述衔接结构另一端通过光学胶与所述背板或所述扩散板进行连接。
根据本发明提供的一优选实施例，所述衔接结构为圆柱形或是长方形。
为解决上述问题，本发明还提供另外一种背光模组，方案如下：
本发明提供的一种背光模组，包括：背板、光源、扩散板以及衔接结构；其中，
所述背板，设置于整个背光模组的底部；
所述光源，呈阵列分布于所述背板和所述扩散板之间，为整个背光模组提供光源；
所述扩散板，正对于所述背板进行设置；
所述衔接结构，设置于所述背板和所述扩散板之间，用于稳定背光模组的混光距离。
根据本发明提供的一优选实施例，所述背板为一种不透光的硬质板材，所述光源由多条平行设置的灯管组成，所述扩散板为一包含扩散涂层的玻璃板。
根据本发明提供的一优选实施例，所述扩散板、所述背板和所述衔接结构均包含第一端面和第二端面，所述衔接结构还包括第一侧面和第二侧面。
根据本发明提供的一优选实施例，所述衔接结构两侧，平行于所述灯管方向设置有筋板。
根据本发明提供的一优选实施例，所述衔接结构一端与所述扩散板或是所述背板一体成型。
根据本发明提供的一优选实施例，所述衔接结构另一端通过光学胶与所述背板或所述扩散板进行连接。
根据本发明提供的一优选实施例，所述衔接结构为圆柱形或是长方形。
根据本发明提供的一优选实施例，所述背光模组包括背板、光源、扩散板以及衔接结构，所述背板设置于整个背光模组的底部，所述光源呈阵列分布于所述背板和所述扩散板之间，为整个背光模组提供光源，所述扩散板正对于所述背板进行设置，所述衔接结构设置于所述背板和所述扩散板之间，用于稳定背光模组的混光距离，所述背光模组的制造方法包括如下步骤：
S10，提供一包含衔接结构的背板或是扩散板；
S20，在所述背板或是所述扩散板的第一端面安装灯源；
S30，提供一未包含衔接结构的背板或是扩散板；
S40，使用光学胶将所述衔接结构的第二端面与所述背板或是所述扩散板黏贴在一起。
根据本发明提供的一优选实施例，所述背板和所述扩散板不同时包含所述衔接结构。
 有益效果
本发明与现有技术相比，通过在背板或是扩散板中增加一体成型的衔接结构，防止曲面模组弯曲造成混光距离的改变，可以使得整个背光模组的混光距离等到稳定。
 附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例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发明的一些实施例，对于本领域技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例提供的背光模组的第一结构示意图。
图2为本发明实施例提供的背光模组的第二结构示意图。
图3为本发明实施例提供的背光模组的第三结构示意图。
图4为本发明实施例提供的背光模组的第四结构示意图。
 本发明的实施方式
下面将结合本发明实施例中的附图，对本发明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发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域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，都属于本发明保护的范围。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示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一个或者更多个所述特征。在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
本发明提供两种优选的实施方案，下面结合图1，图2，图3和图4进行详细的说明。
实施例一
图1为本发明提供的背光模组的第一结构图，即所述背板和所述衔接结构一体成型的背光模组的第一视图。所述第一视图垂直于灯管方向，垂直于所述筋板方向，即衔接结构的第一侧面和第二侧面平行于灯管设置。其中10为背板，101为所述背板10的第一端面，102为所述背板10的第二端面，20为衔接结构，201为所述衔接结构20的第一端面，202为所述衔接结构20的第二端面，203为所述衔接结构20的第一侧面，204为所述衔接结构20的第二侧面，所述第一侧面和所述第二侧面设置筋板结构，30为光学胶，40为扩散板，401为所述扩散板40的第一端面，402为所述扩散板40的第二端面。所述背板10的第一端101即为所述衔接结构的第一端201，所述衔接结构20的第二端202与通过光学胶30与所述扩散板40的第一端401黏贴在一起。
图2为本发明提供的背光模组的第二结构图，即所述背板和所述衔接结构一体成型的背光模组的第二视图。所述第二视图平行于所述灯管和所述筋板方向。图中相应结构和位置标号同图1。
实施例二
图3为本发明提供的背光模组的第三结构图，即所述扩散板和所述衔接结构一体成型的背光模组的第一视图。所述第一视图同样垂直于灯管方向和所述筋板方向，其中10为背板，101为所述背板10的第一端面，102为所述背板10的第二端面，20为光学胶，30为所述衔接结构，301为所述衔接结构30的第一端面，302为所述衔接结构30的第二端面，303为所述衔接结构30的第一侧面，304为所述衔接结构30的第二侧面，所述第一侧面和所述第二侧面同样设置筋板结构， 40为扩散板，401为所述扩散板40的第一端面，402为所述扩散板40的第二端面。所述扩散板40的第一端401即为所述衔接结构的第二端301，所述衔接结构20的第一端301与通过光学胶20与所述背板10的第一端101黏贴在一起。
图4为本发明提供的背光模组的第四结构图，即所述扩散板和所述衔接结构一体成型的背光模组的第二视图，所述第二视图平行于所述灯管和所述筋板方向。其结构和位置标号同图3。
背板10，作为整个背光模组的底盘，起到支撑和承载的作用。
扩散板40，在光线透过扩散涂层时产生漫射，让光的分布均匀化。
光源，通过通电，对整个背光模组提供光源，根据机型的不同，分为直下式和侧光式。直下式背光模组的光源多呈矩形网格阵列分布。
由于现有的背光模组在弯曲时，背板和扩散板都容易发生变形，导致混光距离（即OD值，Optical Distance）偏离了设计值，影响模组的光学质量，为了提高整个背光模组OD值的稳定性，本发明在背光模组结构中增加了一个采用光学透明材料成型的衔接结构。通过加入该衔接结构，使得整个背光模组不易被压缩或拉伸，当背板或扩散板发生局部拉伸导致其OD值即将超出设计值时，衔接结构通过两端的拉力对OD值进行调节，使其回归到设计值；当背板或是扩散板发生局部压缩导致其OD值小于设计值时，衔接结构发挥支撑作用，保障OD值不会因为背板或是扩散板的局部变形而变小。
由于三角形具有稳定性的特征，因此，本发明选择在衔接结构两侧增加筋板，使其结构更加稳定。又由于筋板具有一定的厚度，安装在平行于灯管方向可减小重影现象，提高出光效率。
本发明提供的一种背光模组，包括：背板、光源、扩散板以及衔接结构；其中所述背板，设置于整个背光模组的底部；所述光源，呈阵列分布于所述背板和所述扩散板之间，为整个背光模组提供光源；所述扩散板，正对于所述背板进行设置；所述衔接结构，设置于所述背板和所述扩散板之间，用于稳定背光模组的混光距离。
根据本发明提供的一优选实施例，所述背板为一种不透光的硬质板材，所述光源由多条平行设置的灯管组成，所述扩散板为一包含扩散涂层的玻璃板。
根据本发明提供的一优选实施例，所述扩散板、所述背板和所述衔接结构均包含第一端面和第二端面，所述衔接结构还包括第一侧面和第二侧面。其中，所述第一侧面和所述第二侧面分别设置第一筋板和第二筋板。
根据本发明提供的一优选实施例，所述衔接结构两侧，平行于所述灯管方向设置有筋板。所述筋板的高度与所述衔接结构的高度相等。所述筋板的厚度小于或是等于所述衔接结构的厚度。
根据本发明提供的一优选实施例，所述衔接结构为透明光学材料。
根据本发明提供的一优选实施例，所述衔接结构一端与所述扩散板或是所述背板一体成型。
根据本发明提供的一优选实施例，所述衔接结构另一端通过光学胶与所述背板或所述扩散板进行连接。
根据本发明提供的一优选实施例，所述衔接结构为圆柱形或是长方形。
根据本发明提供的一优选实施例，所述背光模组包括：背板、光源、扩散板以及衔接结构，所述背板设置于整个背光模组的底部，所述光源呈阵列分布于所述背板和所述扩散板之间，为整个背光模组提供光源，所述扩散板正对于所述背板进行设置，所述衔接结构设置于所述背板和所述扩散板之间，用于稳定背光模组的混光距离，该方法包括如下步骤：S10，提供一包含衔接结构的背板或是扩散板；S20，在所述背板或是所述扩散板的第一端面安装灯源；S30，提供一未包含衔接结构的背板或是扩散板；S40，使用光学胶将所述衔接结构的第二端面与所述背板或是所述扩散板粘贴在一起。
根据本发明提供的一优选实施例，所述背板和所述扩散板不同时包含所述衔接结构。
通过在背板或是扩散板中增加一体成型的衔接结构，使得整个背光模组的混光距离等到稳定。
以上对本发明实施例所提供的一种背光模组及其制造方法进行了详细介绍，本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的技术方案及其核心思想；本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例的技术方案的范围。

Claims (19)

  1. 一种背光模组，其特征在于，包括：背板、光源、扩散板以及衔接结构；其中，
    所述背板，设置于整个背光模组的底部；
    所述光源，呈阵列分布于所述背板和所述扩散板之间，为整个背光模组提供光源；
    所述扩散板，正对于所述背板进行设置；
    所述衔接结构，为光学透明材料，设置于所述背板和所述扩散板之间，用于稳定背光模组的混光距离。
  2. 根据权利要求1所述的背光模组，其特征在于，所述背板为一种不透光的硬质板材，所述光源由多条平行设置的灯管组成，所述扩散板为一包含扩散涂层的玻璃板。
  3. 根据权利要求1所述的背光模组，其特征在于，所述扩散板、所述背板和所述衔接结构均包含第一端面和第二端面，所述衔接结构还包括第一侧面和第二侧面。
  4. 根据权利要求3所述的背光模组，其特征在于，所述衔接结构两侧，平行于所述灯管方向设置有筋板。
  5. 根据权利要求4所述的背光模组，其特征在于，所述筋板为三角形。
  6. 根据权利要求4所述的背光模组，其特征在于，所述筋板的高度与所述衔接结构的高度相等。
  7. 根据权利要求4所述的背光模组，其特征在于，所述筋板的厚度小于或等于所述衔接结构的厚度。
  8. 根据权利要求1所述的背光模组，其特征在于，所述衔接结构一端与所述扩散板或是所述背板一体成型。
  9. 根据权利要求1所述的背光模组，其特征在于，所述衔接结构另一端通过光学胶与所述背板或所述扩散板进行连接。
  10. 根据权利要求1所述的背光模组，其特征在于，所述衔接结构为圆柱形或是长方形。
  11. 一种背光模组，其特征在于，包括：背板、光源、扩散板以及衔接结构；其中，
    所述背板，设置于整个背光模组的底部；
    所述光源，呈阵列分布于所述背板和所述扩散板之间，为整个背光模组提供光源；
    所述扩散板，正对于所述背板进行设置；
    所述衔接结构，设置于所述背板和所述扩散板之间，用于稳定背光模组的混光距离。
  12. 根据权利要求11所述的背光模组，其特征在于，所述背板为一种不透光的硬质板材，所述光源由多条平行设置的灯管组成，所述扩散板为一包含扩散涂层的玻璃板。
  13. 根据权利要求11所述的背光模组，其特征在于，所述扩散板、所述背板和所述衔接结构均包含第一端面和第二端面，所述衔接结构还包括第一侧面和第二侧面。
  14. 根据权利要求13所述的背光模组，其特征在于，所述衔接结构两侧，平行于所述灯管方向设置有筋板。
  15. 根据权利要求11所述的背光模组，其特征在于，所述衔接结构一端与所述扩散板或是所述背板一体成型。
  16. 根据权利要求11所述的背光模组，其特征在于，所述衔接结构另一端通过光学胶与所述背板或所述扩散板进行连接。
  17. 根据权利要求11所述的背光模组，其特征在于，所述衔接结构为圆柱形或是长方形。
  18. 一种背光模组的制造方法，其特征在于，所述背光模组包括背板、光源、扩散板以及衔接结构，所述背板设置于所述背光模组的底部，所述光源呈阵列分布于所述背板和所述扩散板之间，为整个背光模组提供光源，所述扩散板正对于所述背板进行设置，所述衔接结构设置于所述背板和所述扩散板之间，用于稳定背光模组的混光距离；所述背光模组的制造方法包括如下步骤：
    S10，提供一包含衔接结构的背板或是扩散板；
    S20，安装灯源；
    S30，提供一未包含衔接结构的背板或是扩散板；
    S40，使用光学胶将所述衔接结构的第二端面与所述背板或是所述扩散板粘贴在一起。
  19. 根据权利要求18所述的背光模组的制造方法，其特征在于，所述背板和所述扩散板不同时包含所述衔接结构。
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