WO2016082249A1 - 导光板、背光模组及显示器 - Google Patents

导光板、背光模组及显示器 Download PDF

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Publication number
WO2016082249A1
WO2016082249A1 PCT/CN2014/093337 CN2014093337W WO2016082249A1 WO 2016082249 A1 WO2016082249 A1 WO 2016082249A1 CN 2014093337 W CN2014093337 W CN 2014093337W WO 2016082249 A1 WO2016082249 A1 WO 2016082249A1
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Prior art keywords
guide plate
light
light guide
micro
microprojection structure
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PCT/CN2014/093337
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English (en)
French (fr)
Inventor
周革革
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深圳市华星光电技术有限公司
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Priority to US14/412,686 priority Critical patent/US9588279B2/en
Publication of WO2016082249A1 publication Critical patent/WO2016082249A1/zh

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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
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • 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
    • 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
    • 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
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces
    • 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
    • G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a light guide plate, a backlight module, and a display.
  • the backlight module includes a light guide plate and a plurality of light sources, and the light emitted by the plurality of light sources is reflected or scattered by the microstructure of the light guide plate, and can be uniformly emitted from the light exit surface of the light guide plate.
  • the light source since the light source has a specific light-emitting angle, a dark area is formed on the light-emitting surface of the light guide plate corresponding to the gap between the two light sources, so that the light guide plate emits light unevenly; on the other hand, the microstructure is reflected. Some incident light will illuminate the side of the light guide plate or the light incident surface, causing light leakage.
  • the embodiment of the invention provides a light guide plate, a backlight module and a display, which can improve the uniformity of the light output of the light guide plate and improve the light utilization efficiency of the light guide plate.
  • a first aspect of the present invention provides a light guide plate, the light guide plate includes a light emitting surface, a reflecting surface opposite to the light emitting surface, and at least one light incident connected to the light emitting surface and the reflecting surface surface,
  • the reflective surface is provided with a plurality of first micro-protrusion structures and a plurality of second micro-protrusion structures protruding toward the interior of the light guide plate, and the light guide plate further includes two light-emitting surfaces and the reflective surface And a side of the at least one light-incident surface, the second micro-protrusion structure is disposed between the first micro-protrusion structure and two sides of the light guide plate, wherein:
  • the first microprojection structure includes at least two sides coated with a high reflectivity material, at least two sides of the first microprojection structure coated with a high reflectivity material forming at least one toward the at least one The angle of the smooth surface;
  • the second microprojection structure includes a side surface coated with a high reflectivity material, the side surface of the second micro protrusion structure forming a smaller than 90° with the closest light incident surface and the closest light guide plate side, respectively. Dihedral angle.
  • the second micro-protrusion structure is disposed between a position corresponding to a light source closest to a side of the light guide plate and a side of the light guide plate.
  • the light guide plate includes a light incident surface
  • the first microprojection structure includes two sides coated with a high reflectivity material, and two sides of the first microprojection structure coated with a high reflectivity material form an angle toward the light incident surface .
  • the first micro-protrusion structure is a triangular pyramid, a triangular prism or a triangular prism
  • the second micro-protrusion structure is a triangular pyramid, a triangular prism or a triangular prism.
  • the light guide plate includes two opposite light incident surfaces
  • the first microprojection structure includes four sides coated with a high reflectivity material, and the four sides coated with the high reflectivity material form an angle between the two opposite light incident surfaces, respectively. .
  • the first micro-protrusion structure is a quadrangular pyramid, a quadrangular prism or a quadrangular prism;
  • the second micro-protrusion structure is a triangular pyramid, a triangular prism or a triangular prism
  • the spacing between the microprojection structures is from 50 ⁇ m to 500 ⁇ m.
  • the bottom side of the microprojection structure has a length of 50 ⁇ m to 100 ⁇ m.
  • a second aspect of the present invention provides a backlight module, comprising the light guide plate and the plurality of light sources according to the first aspect; the plurality of light sources are distributed along the at least one light incident surface.
  • a third aspect of the embodiments of the present invention provides a display, comprising the backlight module of the second aspect.
  • a plurality of first micro-protrusion structures and a plurality of second micro-protrusion structures are disposed on the reflective surface of the light guide plate, and at least two sides of each of the first micro-protrusion structures are coated with high reflectivity. Material, and the at least two sides are formed at least one angle toward the light incident surface of the light guide plate, so that the incident light can be reflected to a position opposite to the gap of the light source, and the dark area corresponding to the gap of the light source on the light guide plate is prevented from being formed.
  • the second micro-protrusion structure is disposed beside the two sides of the light guide plate,
  • the side surface coated with the high reflectivity material can reflect the light irradiated to the side of the light guide plate back to the inside of the light guide plate to avoid light leakage, thereby improving the light utilization efficiency of the light guide plate.
  • FIG. 1 is a schematic structural view of an embodiment of a light guide plate according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural view of another embodiment of a light guide plate according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural view of still another embodiment of a light guide plate according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural view of still another embodiment of a light guide plate according to an embodiment of the present invention.
  • the embodiment of the invention provides a light guide plate, a backlight module and a display, which can improve the uniformity of light emission of the light guide plate and reduce optical loss.
  • FIG. 1 is a schematic structural diagram of an embodiment of a light guide plate according to an embodiment of the present invention.
  • the light guide plate 10 includes a light emitting surface, a reflecting surface 104 opposite to the light emitting surface, and at least one light incident surface 103 connected to the light emitting surface and the reflecting surface 104.
  • a plurality of first micro-protrusion structures 101 and a plurality of second micro-protrusion structures 102 protruding toward the inside of the light guide plate 10 are disposed on the light-receiving plate 10, and the light guide plate 10 further includes two light-emitting surfaces and the reflection The surface of the first micro-protrusion structure 101 and the two side faces 105 of the light guide plate are disposed between the first micro-protrusion structure 101 and the side surface 105 of the light guide plate.
  • the first microprojection structure 101 includes at least two sides 1011 coated with a high reflectivity material, and at least two sides 1011 of the first microprojection structure 101 coated with a high reflectivity material are formed to One less angle toward the at least one light incident surface 103;
  • the second microprojection structure 102 includes a side surface 1021 coated with a high reflectivity material, the side surface 1021 of the second micro protrusion structure 102 and the closest light incident surface 103 and the closest light guide plate side 105 Dihedral angles of less than 90° are formed, respectively.
  • the light emitted by the light source 20 is reflected by the at least two side faces 1011 of the first micro-protrusion structure 101, and is irradiated in a direction opposite to the gap of the light source 20 and away from the light source 20. Therefore, the light-emitting brightness of the light guide plate at a position opposite to the gap of the light source 20 can be enhanced to avoid the formation of dark areas.
  • the light that is incident on the side 105 of the light guide plate can be reflected back to the inside of the light guide plate 10 by the side surface 1021 of the second micro-protrusion structure 102, thereby preventing the light from being emitted from the side 105 of the light guide plate to cause light leakage, thereby improving the light utilization efficiency of the light guide plate.
  • the second micro-protrusion structure 102 may be disposed between a position corresponding to the light source 20 closest to the side 105 of the light guide plate and the side 105 of the light guide plate. Specifically, the second micro-protrusion structure 102 may be disposed beside the two side faces 105 of the light guide plate 10, and the first micro-protrusion structure 101 may be disposed at a position opposite to the light source 20 in the middle of the light guide plate 10.
  • the light guide plate 10 includes a light incident surface 103; at this time, the first microprojection structure 101 includes two sides 1011 coated with a high reflectivity material, and the two are coated with high reflectivity.
  • the side 1011 of the material forms an angle toward the light incident surface 103.
  • the shape of the first micro-protrusion structure 101 may be at least one of a triangular pyramid, a triangular pyramid or a triangular prism.
  • the light guide plate 10 includes two opposite light incident surfaces 103; at this time, the first microprojection structure 101 includes four sides 1011 coated with a high reflectivity material.
  • the four sides 1011 coated with a high reflectivity material form an angle between the two opposite light incident faces 103, respectively.
  • the shape of the first micro-protrusion structure 101 may be any one of a quadrangular pyramid, a quadrangular prism or a quadrangular prism; the second micro-protrusion structure 102 may be at least one of a triangular pyramid, a triangular pyramid or a triangular prism.
  • the shape of the first micro-protrusion structure 101 may be any one of a quadrangular pyramid, a quadrangular prism or a quadrangular prism;
  • the first micro-protrusion structure 101 and the second micro-protrusion structure 102 have a certain absorption effect on the light, in order to prevent the light from being further weakened at a position opposite to the gap of the light source 20, the first The microprojection structure 101 can be disposed corresponding to the light source 20.
  • the density of the first micro-protrusion structure 101 corresponding to the gap of the light source 20 in the light guide plate 10 may be set small, or the first micro-protrusion structure 101 may not be disposed corresponding to the gap of the light source 20 in the light guide plate 10.
  • the light source 20 may be disposed to be staggered along the two opposite light incident surfaces 103 of the light guide plate 10.
  • the spacing between the first micro-protrusion structures 101 may be set between 50 ⁇ m and 500 ⁇ m; the bottom side length of the first micro-protrusion structure 101 may be set between 50 ⁇ m and 100 ⁇ m.
  • the bottom surface of the first micro-protrusion structure 101 refers to the side where the first micro-protrusion structure 101 intersects the reflective surface 104 of the light guide plate 10.
  • a plurality of first micro-protrusion structures and a plurality of second micro-protrusion structures are disposed on the reflective surface, and materials having high reflectivity are coated on at least two sides of each of the first micro-protrusion structures.
  • the second micro-protrusion structure is disposed beside the two sides of the light guide plate, and includes a side surface coated with a high-reflectance material, which can reflect the light irradiated to the side of the light guide plate back to the inside of the light guide plate to avoid light leakage. Thereby improving the light utilization efficiency of the light guide plate.
  • the embodiment of the present invention further provides a backlight module, which comprises the light guide plate as described in any of the embodiments of FIG.
  • the embodiment of the invention further provides a display, which comprises the above backlight module.
  • the backlight module and the display of the embodiment of the invention can reflect the light to a position away from the gap of the light source in the direction away from the light source, improve the uniformity of the light output, and reflect the light that is irradiated to the side of the light guide plate back to the inside of the light guide plate to avoid Light leakage increases the light utilization efficiency of the light guide plate.

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

Abstract

一种导光板（10）、背光模组及显示器。导光板（10）包括一出光面、一与出光面相对的反射面（104）、与出光面和反射面（104）相连的至少一个入光面（103）以及两个侧面（105）。反射面（104）上设有向导光板（10）内部凸起的多个第一微突起结构（101）和多个第二微突起结构（102）。第二微突起结构（102）设置于第一微突起结构（101）与导光板（10）的两个侧面（105）之间。第一微突起结构（101）包括至少两个涂覆有高反射率材料的侧面（1011）。第一微突起结构（101）的至少两个涂覆有高反射率材料的侧面（1011）形成至少一个朝向至少一个入光面（103）的夹角。第二微突起结构（102）包括一涂覆有高反射率材料的侧面（1021）。第二微突起结构（102）的侧面（1021）与最接近的入光面（103）和最接近的导光板侧面（105）分别形成小于90°的二面角。可提高导光板（10）出光的均匀度和导光板（10）的光利用率。

Description

导光板、背光模组及显示器
本发明要求2014年11月26日递交的发明名称为“导光板、背光模组及显示器”的申请号201410696953.6的在先申请优先权，上述在先申请的内容以引入的方式并入本文本中。
技术领域
本发明涉及显示技术领域，尤其涉及一种导光板、背光模组及显示器。
背景技术
在显示技术领域，目前市场上应用较多的显示器是液晶显示器(Liquid Crystal Display，LCD)。液晶显示器中的液晶分子不具备发光特性，需要依靠背光模组发光来达到显示的效果。一般来说，背光模组包括导光板和多个光源，多个光源发出的光线经过导光板上微结构的反射或散射作用，可以从导光板的出光面较均匀地出射。
现有技术中，一方面，由于光源具有特定的出光角度，导光板出光面上对应两个光源的间隙之处会形成暗区，使导光板出光不均匀；另一方面，经过微结构的反射，一些入射光线会照射向导光板的侧面或入光面，造成漏光。
发明内容
本发明实施例提供一种导光板、背光模组及显示器，可提高导光板出光的均匀度并提高导光板的光利用率。
本发明实施例第一方面提供了一种导光板，所述导光板包括一出光面、一与所述出光面相对的反射面以及至少一个与所述出光面和所述反射面相连的入光面，
所述反射面上设有向所述导光板内部凸起的多个第一微突起结构和多个第二微突起结构，所述导光板还包括两个与所述出光面、所述反射面以及所述至少一个入光面相连的侧面，所述第二微突起结构设置于所述第一微突起结构与所述导光板的两个侧面之间，其中：
所述第一微突起结构包括至少两个涂覆有高反射率材料的侧面，所述第一微突起结构的至少两个涂覆有高反射率材料的侧面形成至少一个朝向所述至少一个入光面的夹角；
所述第二微突起结构包括一涂覆有高反射率材料的侧面，所述第二微突起结构的所述侧面与最接近的入光面和最接近的导光板侧面分别形成小于90°的二面角。
可选地，所述第二微突起结构设置在最靠近导光板侧面的光源对应的位置和所述导光板侧面之间。
可选地，所述导光板包括一个入光面；
所述第一微突起结构包括两个涂覆有高反射率材料的侧面，所述第一微突起结构的两个涂覆有高反射率材料的侧面形成一朝向所述入光面的夹角。
可选地，所述第一微突起结构为三棱锥、三棱柱或三棱台；所述第二微突起结构为三棱锥、三棱柱或三棱台。。
可选地，所述导光板包括两个相对的入光面；
所述第一微突起结构包括四个涂覆有高反射率材料的侧面，所述四个涂覆有高反射率材料的侧面形成两个分别朝向所述两个相对的入光面的夹角。
可选地，所述第一微突起结构为四棱锥、四棱柱或四棱台；
所述第二微突起结构为三棱锥、三棱柱或三棱台
可选地，所述微突起结构之间的间距为50μm-500μm。
可选地，所述微突起结构的底面边长为50μm-100μm。
本发明实施例第二方面提供了一种背光模组，包括如第一方面所述的导光板和多个光源；所述多个光源沿所述至少一个入光面分布。
本发明实施例第三方面提供了一种显示器，包括如第二方面所述的背光模组。
本发明实施例中，在导光板的反射面上设置多个第一微突起结构和多个第二微突起结构，在每个第一微突起结构的至少两个侧面涂覆具有高反射率的材料，并且使该至少两个侧面形成至少一个朝向导光板入光面的夹角，从而可以将入射光线反射到与光源的间隙相对的位置，避免导光板上光源的间隙对应处形成暗区，提高出光均匀度；第二微突起结构设置在导光板的两个侧面旁，包 括一涂覆有高反射率材料的侧面，可以将照射到导光板侧面的光线反射回导光板内部，避免造成漏光，从而提高导光板的光利用率。
附图说明
为了更清楚地说明本发明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，下面描述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1是本发明实施例提供的导光板的一实施例的结构示意图；
图2是本发明实施例提供的导光板的另一实施例的结构示意图；
图3是本发明实施例提供的导光板的又一实施例的结构示意图；
图4是本发明实施例提供的导光板的又一实施例的结构示意图。
具体实施方式
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，都属于本发明保护的范围。
本发明实施例提供一种导光板、背光模组及显示器，可提高导光板出光的均匀度并减少光损耗，下面将结合附图对本发明的实施例进行详细说明。
参见图1，为本发明实施例提供的导光板的一实施例的结构示意图。如图1所示，导光板10包括一出光面、一与所述出光面相对的反射面104以及至少一个与所述出光面和所述反射面104相连的入光面103，所述反射面104上设有向所述导光板10内部凸起的多个第一微突起结构101和多个第二微突起结构102，所述导光板10还包括两个与所述出光面、所述反射面104以及所述至少一个入光面103相连的侧面105，所述第二微突起结构102设置于所述第一微突起结构101与所述导光板的两个侧面105之间，其中：
所述第一微突起结构101包括至少两个涂覆有高反射率材料的侧面1011，所述第一微突起结构101的至少两个涂覆有高反射率材料的侧面1011形成至 少一个朝向所述至少一个入光面103的夹角；
所述第二微突起结构102包括一涂覆有高反射率材料的侧面1021，所述第二微突起结构102的所述侧面1021与最接近的入光面103和最接近的导光板侧面105分别形成小于90°的二面角。
请一并参见图2，如图2所示，光源20发出的光线经过第一微突起结构101的至少两个侧面1011反射后，往光源20的间隙相对的位置且远离光源20的方向上照射，从而可以增强导光板在光源20的间隙相对的位置的出光亮度，避免暗区的形成。此外，照射到导光板侧边105的光线可以被第二微突起结构102的侧面1021反射回导光板10内部，避免这些光线从导光板侧边105射出造成漏光，从而提高导光板的光利用率。
进一步地，如图2所示，所述第二微突起结构102可以设置在最接近所述导光板侧面105的光源20对应的位置和所述导光板侧面105之间。具体地，可在导光板10的两个侧面105的旁边设置第二微突起结构102，而导光板10的中间与光源20相对的位置可以设置第一微突起结构101。
在一些可行的实施方式中，导光板10包括一个入光面103；此时第一微突起结构101包括两个涂覆有高反射率材料的侧面1011，所述两个涂覆有高反射率材料的侧面1011形成一朝向所述入光面103的夹角。
可选地，此时第一微突起结构101的形状可以是三棱锥、三棱锥或三棱台中至少一种；第二微突起结构102的形状可以是三棱锥、三棱锥或三棱台中至少一种。
在另一些可行的实施方式中，如图3所示，导光板10包括两个相对的入光面103；此时第一微突起结构101包括四个涂覆有高反射率材料的侧面1011，所述四个涂覆有高反射率材料的侧面1011形成两个分别朝向所述两个相对的入光面103的夹角。
可选地，此时第一微突起结构101的形状可以是四棱锥、四棱柱或四棱台中任意一种；第二微突起结构102的形状可以是三棱锥、三棱锥或三棱台中至少一种。
具体实施中，由于第一微突起结构101和第二微突起结构102对光线有一定的吸收作用，为免光线在与光源20的间隙相对的位置被进一步削弱，第一 微突起结构101可对应光源20设置。具体地，可设置导光板10内光源20的间隙对应处第一微突起结构101的密度较小，或在导光板10内光源20的间隙对应处不设置第一微突起结构101。
具体实施中，如图4所示，可以设置光源20在导光板10的两个相对的入光面103旁错开分布。
具体实施中，第一微突起结构101之间的间距可以设置在50μm-500μm之间；第一微突起结构101的底面边长可以设置在50μm-100μm之间。其中第一微突起结构101的底面指的是第一微突起结构101与导光板10的反射面104相交的一面。
本发明实施例的导光板，在反射面上设置多个第一微突起结构和多个第二微突起结构，在每个第一微突起结构的至少两个侧面涂覆具有高反射率的材料，并且使该至少两个侧面形成至少一个朝向导光板入光面的夹角，从而可以将入射光线反射到与光源的间隙相对的位置，避免导光板上光源的间隙对应处形成暗区，提高出光均匀度；第二微突起结构设置在导光板的两个侧面旁，包括一涂覆有高反射率材料的侧面，可以将照射到导光板侧面的光线反射回导光板内部，避免造成漏光，从而提高导光板的光利用率。
相应地，本发明实施例还提供了一种背光模组，该背光模组包括如图1-4任一实施例所描述的导光板。
相应地，本发明实施例还提供了一种显示器，该显示器包括上述背光模组。
本发明实施例的背光模组和显示器，能够将光线反射到远离光源方向上与光源的间隙相对的位置，提高出光均匀度，还可以将照射到导光板侧面的光线反射回导光板内部，避免漏光，提高导光板的光利用率。
以上所述的实施方式，并不构成对该技术方案保护范围的限定。任何在上述实施方式的精神和原则之内所作的修改、等同替换和改进等，均应包含在该技术方案的保护范围之内。

Claims (20)

  1. 一种导光板，所述导光板包括一出光面、一与所述出光面相对的反射面以及至少一个与所述出光面和所述反射面相连的入光面，其特征在于：
    所述反射面上设有向所述导光板内部凸起的多个第一微突起结构和多个第二微突起结构，所述导光板还包括两个与所述出光面、所述反射面以及所述至少一个入光面相连的侧面，所述第二微突起结构设置于所述第一微突起结构与所述导光板的两个侧面之间，其中：
    所述第一微突起结构包括至少两个涂覆有高反射率材料的侧面，所述第一微突起结构的至少两个涂覆有高反射率材料的侧面形成至少一个朝向所述至少一个入光面的夹角；
    所述第二微突起结构包括一涂覆有高反射率材料的侧面，所述第二微突起结构的所述侧面与最接近的入光面和最接近的导光板侧面分别形成小于90°的二面角。
  2. 根据权利要求1所述的导光板，其特征在于：
    所述第二微突起结构设置在最靠近导光板侧面的光源对应的位置和所述导光板侧面之间。
  3. 根据权利要求1所述的导光板，其特征在于：
    所述导光板包括一个入光面；
    所述第一微突起结构包括两个涂覆有高反射率材料的侧面，所述第一微突起结构的两个涂覆有高反射率材料的侧面形成一朝向所述入光面的夹角。
  4. 根据权利要求3所述的导光板，其特征在于：
    所述第一微突起结构为三棱锥、三棱柱或三棱台；
    所述第二微突起结构为三棱锥、三棱柱或三棱台。
  5. 根据权利要求1所述的导光板，其特征在于：
    所述导光板包括两个相对的入光面；
    所述第一微突起结构包括四个涂覆有高反射率材料的侧面，所述四个涂覆有高反射率材料的侧面形成两个分别朝向所述两个相对的入光面的夹角。
  6. 根据权利要求5所述的导光板，其特征在于：
    所述第一微突起结构为四棱锥、四棱柱或四棱台；
    所述第二微突起结构为三棱锥、三棱柱或三棱台。
  7. 根据权利要求1所述的导光板，其特征在于：
    所述微突起结构之间的间距为50μm-500μm。
  8. 根据权利要求1所述的导光板，其特征在于：
    所述微突起结构的底面边长为50μm-100μm。
  9. 一种背光模组，包括一导光板和沿所述导光板的至少一个入光面分布的多个光源；所述导光板包括一出光面、一与所述出光面相对的反射面以及至少一个与所述出光面和所述反射面相连的入光面，其特征在于：
    所述反射面上设有向所述导光板内部凸起的多个第一微突起结构和多个第二微突起结构，所述导光板还包括两个与所述出光面、所述反射面以及所述至少一个入光面相连的侧面，所述第二微突起结构设置于所述第一微突起结构与所述导光板的两个侧面之间，其中：
    所述第一微突起结构包括至少两个涂覆有高反射率材料的侧面，所述第一微突起结构的至少两个涂覆有高反射率材料的侧面形成至少一个朝向所述至少一个入光面的夹角；
    所述第二微突起结构包括一涂覆有高反射率材料的侧面，所述第二微突起结构的所述侧面与最接近的入光面和最接近的导光板侧面分别形成小于90°的二面角。
  10. 根据权利要求9所述的背光模组，其特征在于：
    所述第二微突起结构设置在最靠近导光板侧面的光源对应的位置和所述导光板侧面之间。
  11. 根据权利要求10所述的背光模组，其特征在于：
    所述导光板包括一个入光面；
    所述第一微突起结构包括两个涂覆有高反射率材料的侧面，所述第一微突起结构的两个涂覆有高反射率材料的侧面形成一朝向所述入光面的夹角。
  12. 根据权利要求11所述的背光模组，其特征在于：
    所述第一微突起结构为三棱锥、三棱柱或三棱台；
    所述第二微突起结构为三棱锥、三棱柱或三棱台。
  13. 根据权利要求10所述的背光模组，其特征在于：
    所述导光板包括两个相对的入光面；
    所述第一微突起结构包括四个涂覆有高反射率材料的侧面，所述四个涂覆有高反射率材料的侧面形成两个分别朝向所述两个相对的入光面的夹角。
  14. 根据权利要求13所述的背光模组，其特征在于：
    所述第一微突起结构为四棱锥、四棱柱或四棱台；
    所述第二微突起结构为三棱锥、三棱柱或三棱台。
  15. 一种显示器，包括至少一背光模组，所述背光模组包括一导光板和沿所述导光板的至少一个入光面分布的多个光源；所述导光板包括一出光面、一与所述出光面相对的反射面以及至少一个与所述出光面和所述反射面相连的入光面，其特征在于：
    所述反射面上设有向所述导光板内部凸起的多个第一微突起结构和多个第二微突起结构，所述导光板还包括两个与所述出光面、所述反射面以及所述至少一个入光面相连的侧面，所述第二微突起结构设置于所述第一微突起结构与所述导光板的两个侧面之间，其中：
    所述第一微突起结构包括至少两个涂覆有高反射率材料的侧面，所述第一微突起结构的至少两个涂覆有高反射率材料的侧面形成至少一个朝向所述至少一个入光面的夹角；
    所述第二微突起结构包括一涂覆有高反射率材料的侧面，所述第二微突起结构的所述侧面与最接近的入光面和最接近的导光板侧面分别形成小于90°的二面角。
  16. 根据权利要求15所述的显示器，其特征在于：
    所述第二微突起结构设置在最靠近导光板侧面的光源对应的位置和所述导光板侧面之间。
  17. 根据权利要求16所述的显示器，其特征在于：
    所述导光板包括一个入光面；
    所述第一微突起结构包括两个涂覆有高反射率材料的侧面，所述第一微突起结构的两个涂覆有高反射率材料的侧面形成一朝向所述入光面的夹角。
  18. 根据权利要求17所述的显示器，其特征在于：
    所述第一微突起结构为三棱锥、三棱柱或三棱台；
    所述第二微突起结构为三棱锥、三棱柱或三棱台。
  19. 根据权利要求16所述的显示器，其特征在于：
    所述导光板包括两个相对的入光面；
    所述第一微突起结构包括四个涂覆有高反射率材料的侧面，所述四个涂覆有高反射率材料的侧面形成两个分别朝向所述两个相对的入光面的夹角。
  20. 根据权利要求19所述的显示器，其特征在于：
    所述第一微突起结构为四棱锥、四棱柱或四棱台；
    所述第二微突起结构为三棱锥、三棱柱或三棱台。
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