WO2016184111A1 - 反射组件、背光模组和具有该背光模组的显示设备 - Google Patents

反射组件、背光模组和具有该背光模组的显示设备 Download PDF

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Publication number
WO2016184111A1
WO2016184111A1 PCT/CN2015/099113 CN2015099113W WO2016184111A1 WO 2016184111 A1 WO2016184111 A1 WO 2016184111A1 CN 2015099113 W CN2015099113 W CN 2015099113W WO 2016184111 A1 WO2016184111 A1 WO 2016184111A1
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WIPO (PCT)
Prior art keywords
light
optical lens
backlight module
reflective
optical
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PCT/CN2015/099113
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English (en)
French (fr)
Inventor
戴忠勇
陈蔚轩
刘丰铭
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瑞仪光电(苏州)有限公司
瑞仪光电股份有限公司
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Priority to US15/288,856 priority Critical patent/US20170023827A1/en
Publication of WO2016184111A1 publication Critical patent/WO2016184111A1/zh

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    • 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
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
    • 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
    • G02F1/133605—Direct backlight including specially adapted reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • 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
    • F21V7/10—Construction
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133603—Direct backlight with LEDs
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses

Definitions

  • the present invention relates to a reflective component, a backlight module, and a display device having the same, and more particularly to a reflective component of a direct type display device, a backlight module, and a display device having the same.
  • a direct-lit LED backlight technology is provided with an array of a plurality of lenses 11 internally provided with light-emitting diodes on the reflective sheet 12 (only two of the lenses 11 are shown for convenience of explanation).
  • the lens 11 faces the diffusion sheet 13 which is disposed in parallel with the reflection sheet 12, and the liquid crystal panel 14 which is parallel to the diffusion sheet 13 is provided outside the diffusion sheet 13. A better dynamic contrast ratio can be obtained by this configuration.
  • the dark area is formed on the diffusion sheet 13 corresponding to the position of the two adjacent lenses 11 due to no light irradiation, so it is necessary to rely on the reflection sheet 12 to reflect the lens 11. Lateral light is emitted to improve light uniformity.
  • the design of the reflection sheet 12 cannot correct the lateral light output of the lens 11, so that the reflection angle of the lateral light is large and cannot fall in the dark area, and the uniformity of the light is uneven due to the presence of the dark area, resulting in a market reaction. Good and affect sales.
  • the reflective assembly of the present invention is suitable for use with a plurality of optical lenses, each of which is provided with a light-emitting assembly.
  • the reflective assembly includes a plurality of annular body portions disposed adjacently. Each of the ring portions is disposed around the corresponding optical lens, and a portion of the light emitted by each of the light-emitting components via the respective optical lenses is reflected by the respective ring body.
  • Another object of the present invention is to provide a backlight module having the above reflective assembly group.
  • the backlight module of the present invention comprises a plurality of optical lenses arranged at intervals, a plurality of light emitting components respectively disposed on the optical lens, an optical plate having a light incident surface, and a reflective component facing the reflective surface of the optical plate.
  • the reflective assembly includes a plurality of annular body portions that abut each other, each of the annular body portions being disposed around the corresponding optical lens, and the height of each of the annular body portions is not greater than a height of a corresponding one of the optical lenses.
  • Another object of the present invention is to provide a display device having the above backlight module.
  • the display device of the present invention comprises the backlight module as described above, and a liquid crystal panel disposed in front of the backlight module.
  • the effect of the invention is that the reflection area is increased by respectively surrounding the ring body portion corresponding to the corresponding optical lens, and the reflected light path is changed, so that the light-emitting energy of the light-emitting component is uniformly reflected by the ring body portion to the optical plate. On, to enhance the uniformity of light.
  • 1 is a side view showing a known direct type LED backlight module
  • Figure 2 is an exploded perspective view showing a first embodiment of the display device of the present invention
  • FIG. 3 is a side view of the state in which the backlight module of FIG. 2 is combined;
  • FIG. 4 is a view showing an arrangement of a plurality of ring portions of the reflection assembly in the first embodiment
  • Fig. 5 is a perspective view showing a second embodiment of the display device of the present invention.
  • the first embodiment of the display device 20 of the present invention includes a backlight module 21 and a liquid crystal panel 22 disposed in front of the backlight module 21 .
  • the backlight module 21 includes a base a plate 3, an optical plate 4 disposed parallel to the substrate 3 and spaced apart from each other, and a plurality of optical lenses 5 disposed on the substrate 3 at intervals between the substrate 3 and the optical plate 4, respectively disposed on the optical lens A plurality of light-emitting components 6 on the 5 and a reflective component 7 disposed on the substrate 3 surrounding the optical lens 5.
  • the substrate 3 has a flat surface 31 for arranging the optical lens 5 and the reflection assembly 7.
  • the optical plate 4 has a light incident surface 41 facing the optical lens 5, and a light exit surface 42 opposed to the light incident surface 41.
  • the optical plate 4 is a diffusion plate.
  • Each of the optical lenses 5 has a top portion 51 facing the light incident surface 41 and facing the top portion 51 and facing the plane 31 and for arranging the bottom portion 52 of the corresponding light emitting assembly 6, and respectively disposed at the top portion 51 and Two grooves 53 of the bottom 52.
  • a groove 53 disposed in the bottom portion 52 is for increasing the light-emitting angle of the light-emitting assembly 6, and the groove 53 disposed at the top portion 51 reflects a portion of the light to cause the light to exit the side in a direction parallel to the plane 31, and Some of the light is still shining in the positive direction.
  • the optical lens 5 is a reflective secondary optical lens that avoids direct light source and effectively diffuses the light source.
  • the reflective assembly 7 has a first axial direction X, a second axial direction Y, and a third axial direction Z.
  • a direction parallel to the width direction of the plane 31 is defined as a first axial direction X
  • a direction parallel to the longitudinal direction of the plane 31 and perpendicular to the first axial direction X is defined as a second axial direction Y, and will be vertical
  • the direction of the first axial direction X and the second axial direction Y is defined as a third axial direction Z.
  • the arrangement density of the light-emitting component 6 along the first axial direction X and the second axial direction Y is inversely proportional to the distance between the light-incident surface 41 along the third axial direction Z to the optical lens 5, due to the The distance between the optical axis 5 and the optical lens 5 is equivalent to the thickness of the backlight module 21, so that the thicker the backlight module 21 is, the mixing of the light-emitting components 6 can be achieved.
  • the light distance is increased without increasing the arrangement density of the light-emitting components 6, so that the arrangement density of the light-emitting components 6 is lower, that is, the arrangement pitch is large and loose.
  • the thickness of the backlight module 21 is thinner, the light mixing distance of the light-emitting component 6 becomes shorter. In this case, the arrangement density of the light-emitting component 6 needs to be higher, that is, the alignment is tighter.
  • the reflection unit 7 includes a plurality of ring portions 71 arranged in a matrix in alignment with each other, and the ring portions 71 are formed in a sheet shape and integrally formed. Each of the ring portions 71 is disposed around the corresponding optical lens 5.
  • the ring body portion 71 has a first surrounding end 711 that surrounds and is away from the optical lens 5, and a bit a second surrounding end 712 between the first surrounding end 711 and the optical lens 5.
  • the height of the plane 31 along the third axis Z to the first surrounding end 711 is greater than the height of the plane 31 along the third axis Z to the second surrounding end 712, thereby defining a sloped torus and facing the corresponding
  • the reflecting surface 713 has an annular shape and surrounds the mounting region 714 that houses the optical lens 5. As shown in FIG. 3, each two adjacent mounting regions 714 are spaced apart by a corresponding two adjacent reflecting surfaces 713.
  • the height of the plane 31 along the third axial direction Z to the first surrounding end 711 of each of the ring body portions 71 A is not greater than the height B of the plane 31 along the third axis Z to the top 51 of the optical lens 5.
  • the distance C between the centers of any two adjacent ring portions 71 arranged along the first axial direction X can be adjusted again during assembly, so that the uniformity is not affected.
  • the distance C will generally be greater than the distance D between the centers of any two adjacent annular body portions 71 arranged along the second axial direction Y.
  • a portion of the light emitted by each of the light-emitting components 6 exits the recess 53 of the top portion 51 of the optical lens 5 along the third axial direction Z, thereby directly entering the optical plate 4.
  • the light incident surface 41 is emitted by the light exit surface 42 of the optical plate 4.
  • the other portion of the light is emitted laterally by the optical lens 5, and is reflected by the reflecting surface 713 of the corresponding ring portion 71 to the light incident surface 41 as shown in FIG. 3, and the light is incident on the light incident surface 41.
  • the upper position is located between the optical lens 5 and another corresponding adjacent optical lens 5, and finally the light exiting surface 42 is emitted.
  • the optical lens 5 and the ring body portion 71 By the arrangement of the optical lens 5 and the ring body portion 71 described above, part of the light emitted by each of the light-emitting components 6 can be emitted laterally by the corresponding optical lens 5, and the ring disposed obliquely and surrounding the optical lens 5
  • the reflecting surface 713 of the body 71 is reflected to the optical plate 4 to emit light outward, so that the reflecting surface 713 can reflect the lateral outgoing light along the third axial direction Z to the light incident surface 41 as shown in FIG.
  • the dark area between the two adjacent optical lenses 5 is used to reinforce the brightness of the light, thereby improving the uniformity of light emission.
  • the light uniformity is increased, the light mixing distance between the light-emitting assembly 6 and the optical plate 4 can be reduced, thereby achieving the effect of thinning the display device 20, and also making the light-emitting assembly 6 loosely arranged, reducing the The number of configurations of the light-emitting components 6 is to save costs.
  • a second embodiment of a display device 20 of the present invention is generally similar except that the ring portions 71 are interdigitated to provide another light-emitting arrangement that increases versatility.
  • the ring body portion 71 can reflect the lateral light of the corresponding optical lens 5 onto the optical plate 4 to emit light outward, and the reflecting surface 713 of each ring body portion 71 obliquely surrounds the corresponding optics.
  • the lens 5 can achieve the object of the present invention by increasing the reflection area and correcting the lateral light emission to the dark area on the optical plate 4 to reinforce the brightness and increase the light uniformity.

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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)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)

Abstract

反射组件（7）、背光模组（21）和具有背光模组（21）的显示设备（20）。背光模组（21）包含间隔排列设置的多个光学透镜（5），分别设置于光学透镜（5）的多个发光组件（6），具有入光面（41）与出光面（42）的光学板（4），以及反射组件（7），反射组件（7）包括相邻的多个环体部（71），每一个环体部（71）围绕相对应的光学透镜（5）设置，且每一个环体部（71）的高度不大于相对应的光学透镜（5）的高度，每一个发光组件（6）经由各自的光学透镜（5）所射出的一部分光线进入光学板（4）的入光面（41），再由光学板（4）的出光面（42）射出，另一部分光线被各自的环体部（71）反射再进入光学板（4）的入光面（41），再由光学板（4）的出光面（42）射出，提高整体出光均匀度。

Description

反射组件、背光模组和具有该背光模组的显示设备 技术领域
本发明涉及反射组件、背光模组和具有该背光模组的显示设备，特别涉及直下式显示设备的反射组件、背光模组和具有该背光模组的显示设备。
背景技术
如图1所示，直下式发光二极管背光技术，将多枚内部设有发光二极管的透镜11阵列设置于反射片12上(图中为便于说明，仅显示其中的两个透镜11)，并使该透镜11朝向与该反射片12平行且间隔设置的扩散片13，该扩散片13的外侧间隔设有与该扩散片13平行的液晶面板14。通过此种配置能得到较好的动态对比度。
如果仅依靠该透镜11的正向出光，则该扩散片13上对应于两相邻透镜11的位置间会因无光线照射而形成暗区，因此需要依靠该反射片12来反射该透镜11的侧向出光以改善出光均匀度。但该反射片12的设计无法校正该透镜11的侧向出光，使得侧向出光的反射角度较大而无法落于暗区，进而因为存在暗区而使出光均匀度不均，造成市场反应不佳而影响销售。
发明内容
因此，本发明的目的，在于提供一种可提升出光均匀度的反射组件。
于是，本发明的反射组件，适用于多个光学透镜，每一个光学透镜设置有发光组件。该反射组件包含相邻设置的多个环体部。每一个环体部围绕相对应的光学透镜设置，每一个发光组件经由各自的光学透镜所射出的一部分光线被各自的环体部所反射。
因此，本发明的另一个目的，在于提供具有上述反射组件的背光模 组。
于是，本发明的背光模组包含间隔排列设置的多个光学透镜、分别设置于该光学透镜的多个发光组件、具有入光面的光学板，以及面向该光学板反射面的反射组件。该反射组件包括相互邻接的多个环体部，每一个环体部围绕相对应的光学透镜设置，且每一个环体部的高度不大于相对应的一个光学透镜的高度。
因此，本发明的另一个目的，在于提供具有上述背光模组的显示设备。
于是，本发明的显示设备包含如上所述的背光模组，以及设置于该背光模组前方的液晶面板。
本发明的效果在于：通过将该环体部分别围绕相对应的光学透镜而使反射面积增加，同时改变反射光路径进而使该发光组件的出光能被该环体部均匀地反射至该光学板上，进而提升出光均匀度。
附图说明
本发明的其他特征及效果，将参照附图的实施方式清楚地呈现，其中：
图1是示出公知的直下式发光二极管背光模组的侧视图；
图2是示出本发明的显示设备的第一实施例的立体分解图；
图3是辅助示出图2中背光模组组合后的样子的侧视图；
图4是示出该第一实施例中的反射组件的多个环体部的排列方式的示意；以及
图5是示出本发明的显示设备的第二实施例的立体图。
具体实施方式
在本发明被详细描述之前，应当注意在以下的说明内容中，类似的组件以相同的编号来表示。
参照图2与图3，本发明的显示设备20的第一实施例包含背光模组21，以及设置于该背光模组21前方的液晶面板22。该背光模组21包括基 板3、与该基板3平行且间隔设置的光学板4、于该基板3及该光学板4之间且间隔地排列设置于该基板3上的多个光学透镜5、分别设置于该光学透镜5上的多个发光组件6以及围绕该光学透镜5设置于该基板3上的反射组件7。
该基板3具有用于设置该光学透镜5及该反射组件7的平面31。该光学板4具有朝向该光学透镜5的入光面41，以及与该入光面41相对的出光面42。在该第一实施例中，该光学板4为扩散板。
每一个光学透镜5具有朝向该入光面41且呈平面的顶部51、与该顶部51相对且朝向该平面31并且用于设置相对应发光组件6的底部52，以及分别设置在该顶部51及该底部52的两个凹槽53。设置在该底部52的凹槽53用于增加该发光组件6的发光角度，而设置在该顶部51的凹槽53可反射部分光线使该光线沿平行于该平面31的方向侧面出光，而另一部分光线则依旧沿正向出光。在该第一实施例中，该光学透镜5为反射式二次光学透镜，可避免光源直射并有效扩散光源。
该反射组件7具有第一轴向X，第二轴向Y，以及第三轴向Z。将平行于该平面31的宽度方向的方向定义为第一轴向X，将平行于该平面31的长度方向且垂直于该第一轴向X的方向定义为第二轴向Y，以及将垂直于该第一轴向X及该第二轴向Y的方向定义为第三轴向Z。该发光组件6沿该第一轴向X及该第二轴向Y的排列密度与该入光面41沿该第三轴向Z至该光学透镜5之间的距离呈反比关系，由于该入光面41沿该第三轴向Z至该光学透镜5之间的距离相当于该背光模组21的厚度，所以当该背光模组21的厚度越厚时，可使该发光组件6的混光距离增加，而不需要增加该发光组件6的排列密度，从而使该发光组件6的排列密度越低，即排列间距较大且松散。反之，当该背光模组21的厚度越薄时，该发光组件6的混光距离就变得较短，此时就需要让该发光组件6的排列密度越高，即排列越紧密。
该反射组件7包括相互对齐呈矩阵式排列的多个环体部71，该环体部71呈片状且为一体成型。每一个环体部71围绕相对应的光学透镜5设置。该环体部71具有环绕且远离该光学透镜5的第一环绕端711，以及位 于该第一环绕端711及该光学透镜5之间的第二环绕端712。该平面31沿该第三轴向Z至该第一环绕端711的高度大于该平面31沿该第三轴向Z至该第二环绕端712的高度，从而定义了倾斜环面且面向相对应光学透镜5的反射面713。该反射面713呈圆环状且围绕容纳该光学透镜5的装设区714。如图3所示，每两个相邻装设区714由相对应的两邻接反射面713分隔而间隔排列。
参照图3，由于该光学透镜5的侧向出光位置比该光学透镜5的顶面低，所以该平面31沿该第三轴向Z至每一个环体部71的第一环绕端711的高度A不大于该平面31沿该第三轴向Z至该光学透镜5顶部51的高度B。参照图4，一般来说，沿该第一轴向X排列的任何两个相邻环体部71的中心之间的距离C在组装时可再进行调整，所以在不影响均匀度的前提下，该距离C通常会大于沿该第二轴向Y排列的任何两相邻环体部71中心之间的距离D。
再参照图2及图3，每一个发光组件6所发出的一部份光线穿出该光学透镜5的顶部51的凹槽53沿该第三轴向Z射出，从而直接进入该光学板4的该入光面41并由该光学板4的该出光面42出光。而另一部分的光线由该光学透镜5的侧向出光，并且如图3所示被相对应的环体部71的反射面713反射至该入光面41上，并且光线在该入光面41上的位置位于该光学透镜5以及另一个相对应的相邻光学透镜5之间，最后由该出光面42出光。
通过上述该光学透镜5及该环体部71的配置，使每一个发光组件6发出的部分光线能由相对应的光学透镜5的侧向出光，并且被倾斜且环绕该光学透镜5设置的环体部71的反射面713反射至该光学板4而向外出光，使该反射面713可如图3所示地将侧向出光沿该第三轴向Z反射至该入光面41上位于相邻两个光学透镜5之间的暗区，以补强出光亮度，进而提高出光均匀度。此外，由于出光均匀度上升，所以可减少该发光组件6至该光学板4之间的混光距离，从而达到薄化该显示设备20的效果，也让该发光组件6排列较松散，减少该发光组件6的配置数量以节省成本。
参照图5，为本发明显示设备20的第二实施例，该第二实施例与该第 一实施例大致相似，不同之处在于：该环体部71是相互交错地排列，以提供另一种出光配置方式，增加泛用性。
综上所述，该环体部71可将相对应光学透镜5的侧向出光反射至该光学板4上以向外出光，每一个环体部71的反射面713倾斜地围绕相对应的光学透镜5以增加反射面积，并可将侧向出光校正至该光学板4上的暗区，以补强亮度，增加出光均匀性，所以确实能实现本发明的目的。
以上所述仅是本发明的实施例而已，不能以此限定本发明实施的范围，即大致根据本发明权利要求的范围及专利说明书内容所作的简单的等效变化与修饰，都仍属于本发明专利涵盖的范围内。
【符号说明】
20  显示设备    71  环体部
21  背光模组    711 第一环绕端
22  液晶面板    712 第二环绕端
3   基板        713 反射面
31  平面        714 装设区
4   光学板      A   高度
41  入光面      B   高度
42  出光面      C   距离
5   光学透镜    D   距离
51  顶部        X   第一轴向
52  底部        Y   第二轴向
53  凹槽        Z   第三轴向
6   发光组件
7   反射组件

Claims (16)

  1. 一种反射组件，其适用于多个光学透镜，每一个光学透镜设置有发光组件，所述反射组件包括：
    多个环体部，其相互邻接设置，每一个环体部围绕相对应的光学透镜设置，每一个发光组件经由各自的光学透镜所射出的一部分光线被各自的环体部反射。
  2. 根据权利要求1所述的反射组件，所述反射组件设置于平面上，每一个环体部向外逐渐远离所述平面而形成环绕并且面向相对应光学透镜的反射面。
  3. 根据权利要求2所述的反射组件，其中，每一个反射面围绕出容纳相对应光学透镜的装设区，每两个相邻装设区间隔排列。
  4. 根据权利要求2所述的反射组件，其中，每一个反射面倾斜设置并呈圆环状。
  5. 根据权利要求1所述的反射组件，其中，所述反射组件具有第一轴向以及第二轴向，沿所述第一轴向排列的任何两个相邻环体部的中心之间的距离大于沿所述第二轴向排列的任何两个相邻环体部的中心之间的距离。
  6. 根据权利要求1所述的反射组件，其中，所述环体部呈片状且为一体成型。
  7. 根据权利要求1所述的反射组件，其中，所述环体部相互对齐地呈矩阵式排列。
  8. 根据权利要求1所述的反射组件，其中，所述环体部相互交错地排列。
  9. 一种背光模组，其包括：
    多个光学透镜，其间隔地排列设置；
    多个发光组件，其分别设置在所述光学透镜上；
    光学板，其具有入光面；以及
    反射组件，其面向所述光学板的所述入光面，所述反射组件包括相邻 的多个环体部，每一个环体部围绕相对应的光学透镜设置，并且每一个环体部的高度不大于相对应的光学透镜的高度。
  10. 根据权利要求9所述的背光模组，其中，所述反射组件设置于平面上，每一个环体部具有环绕并且远离相对应光学透镜的第一环绕端，以及位于所述第一环绕端与所述光学透镜之间的第二环绕端，所述第一环绕端至所述平面的高度不大于所述光学透镜顶部至所述平面的高度。
  11. 根据权利要求10所述的背光模组，其中，所述第一环绕端至所述平面的高度大于所述第二环绕端至所述平面的高度，从而界定出向外倾斜且面向相对应光学透镜的反射面。
  12. 根据权利要求11所述的背光模组，其中，每一个发光组件经由各自的光学透镜射出的一部分的光线由光学透镜的侧向出光并由相对应的反射面反射。
  13. 根据权利要求9所述的背光模组，其中，所述反射组件具有第一轴向及第二轴向，沿所述第一轴向排列的任何两个相邻环体部的中心之间的距离大于沿所述第二轴向排列的任何两个相邻环体部的中心之间的距离。
  14. 根据权利要求9所述的背光模组，其中，每一个光学透镜的顶部呈平面且具有凹槽，且所述光学透镜的底部也具有凹槽。
  15. 根据权利要求9所述的背光模组，其中，所述光学板的所述入光面与所述光学透镜之间的距离与所述发光组件的排列密度呈反比关系。
  16. 一种显示设备，包含：
    根据权利要求9至15中任一项所述的背光模组；以及
    设置在所述背光模组前方的液晶面板。
PCT/CN2015/099113 2015-05-21 2015-12-28 反射组件、背光模组和具有该背光模组的显示设备 WO2016184111A1 (zh)

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