WO2017080037A1 - 背板组件、背光模组及显示装置 - Google Patents

背板组件、背光模组及显示装置 Download PDF

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Publication number
WO2017080037A1
WO2017080037A1 PCT/CN2015/098742 CN2015098742W WO2017080037A1 WO 2017080037 A1 WO2017080037 A1 WO 2017080037A1 CN 2015098742 W CN2015098742 W CN 2015098742W WO 2017080037 A1 WO2017080037 A1 WO 2017080037A1
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Prior art keywords
assembly
reinforcing plate
plate assembly
hole
holes
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PCT/CN2015/098742
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English (en)
French (fr)
Inventor
李德华
萧宇均
俞刚
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深圳市华星光电技术有限公司
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Priority to US14/904,473 priority Critical patent/US20170227704A1/en
Publication of WO2017080037A1 publication Critical patent/WO2017080037A1/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
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
    • 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
    • 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
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0093—Means for protecting the light guide
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/54—Arrangements for reducing warping-twist

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a backplane assembly, a backlight module, and a display device.
  • liquid crystal display devices have been widely used in various electronic products as display components of electronic devices, and the thickness of these electronic devices is becoming thinner and thinner; and the backlight module is an important component in a liquid crystal display device, and its thickness is bound to be inevitable. To be thinner and thinner to meet the needs of electronic devices.
  • the backlight module has a light guide plate and a back plate disposed on the back of the light guide plate, and in the ultra-thinning trend, the back plate cannot be made too thick, which results in weakening of the back plate mainly serving as a protective light guide plate.
  • a known method for reinforcing the rigidity of the backing plate is to fix a plurality of reinforcing ribs on the backing plate. This method directly enhances the rigidity of the backing plate, but seriously affects the appearance of the backing plate and the display device, and the structure It is not compact, and it is easy to make the backlight module and the display device as thick as a whole, which is disadvantageous for the thinning of the display device.
  • the present invention provides a rigid, aesthetically pleasing backplane assembly, backlight module and display device.
  • a backboard assembly includes a backing plate and a reinforcing plate assembly, the reinforcing plate assembly being fixed to an outer surface of the backing plate, and the reinforcing plate assembly is provided with a hollow structure to form a plurality of staggered reinforcing ribs.
  • the reinforcing plate assembly is metal
  • the stiffener assembly is carbon fiber, tempered glass or ceramic.
  • the reinforcing plate assembly is symmetrical about an axis of symmetry of the back plate perpendicular to the long side.
  • the reinforcing plate assembly is provided with at least a pair of first through holes that are hollowed out about the axis of symmetry of the reinforcing plate assembly and a plurality of second through holes that are spaced around the first through hole.
  • the first through hole area is larger than the second through hole.
  • the reinforcing plate assembly is further provided with a hollow third through hole, and the third through hole is opened between the pair of the first through holes symmetrically disposed.
  • the reinforcing plate assembly is formed by splicing a plurality of sub-boards, and the plurality of sub-boards are spliced to form the first through hole.
  • the stiffener assembly is radially formed from the axis of symmetry perpendicular to the long side of the backing plate to form a fan-shaped hollow structure.
  • Another object of the present invention is to provide a backlight module using the above-mentioned backplane assembly, and the reinforcing plate assembly is disposed on an outer surface of the backlight module.
  • the reinforcing plate assembly and the back plate portion of the invention are separately designed and manufactured and fixed together, and the reinforcing rib is integrated on the reinforcing plate assembly, and the reinforcing plate assembly also forms a hollow structure, and the backlight is ensured in the case of ensuring the deformation resistance of the back plate.
  • Modules and display devices can be customized according to customer needs, and beautiful shapes can be designed to meet different needs.
  • FIG. 1 is a schematic exploded view showing the structure of a display device according to Embodiment 1 of the present invention.
  • FIG. 2 is a schematic view showing the installation of a reinforcing plate assembly according to Embodiment 1 of the present invention.
  • FIG 3 is a schematic view showing the structure of the back surface of a display device according to Embodiment 1 of the present invention.
  • FIG. 4 is a schematic view showing the structure of the back surface of another display device according to Embodiment 1 of the present invention.
  • FIG. 5 is a schematic view showing the structure of the back surface of a display device according to Embodiment 2 of the present invention.
  • Fig. 6 is a schematic view showing the installation of a reinforcing plate assembly according to Embodiment 3 of the present invention.
  • FIG. 7 is a schematic view showing the structure of the back surface of a display device according to Embodiment 3 of the present invention.
  • a display device includes a backplane assembly 10, a reflective sheet 20, a light guide plate 30, an optical film set 40, a plastic frame 50, a liquid crystal panel 60, and a front frame 70, wherein the bottom-up is sequentially
  • the backplane assembly 10, the reflective sheet 20, the light guide plate 30, the optical film set 40 and the plastic frame 50 are stacked to form a backlight module.
  • the liquid crystal panel 60 is mounted on the upper surface of the plastic frame 50, and the front frame is covered by the cover. 70 for protection and fixation.
  • the backboard assembly includes a backing plate 11 and a thin plate-shaped reinforcing plate assembly 12 fixed to the outer surface of the backing plate 11 (ie, the side on which the light guiding plate 30 is not placed), and the reinforcing plate assembly 12 is provided with a hollow structure to form a plurality of staggered reinforcing ribs 12a.
  • the reinforcing plate assembly 12 is made of metal, carbon fiber, tempered glass or ceramic with high rigidity and high modulus.
  • the elastic modulus is above 200 GPa, which can provide high deformation resistance of the back plate.
  • the reinforcing plate assembly 12 can be fixed to the back plate by screws, glue or tape, and has good replacement performance and is suitable for personalization.
  • the stiffener assembly 12 is symmetrical about the axis of symmetry of the backing plate 11 perpendicular to the long sides (i.e., the axis of symmetry in the longitudinal direction of the view shown in FIG. 3), the stiffeners 12a on the stiffener assembly 12 and corresponding
  • the hollow structure is also symmetrically arranged, so that the back plate 11 has uniform rigidity and avoids uneven force everywhere.
  • the reinforcing plate assembly 12 of the present embodiment is provided with at least a pair of first through holes 121 that are symmetrical about the axis of symmetry of the reinforcing plate assembly 12 and a plurality of second through holes 122 that are spaced around the first through holes 121.
  • the first through hole 121 is larger in area than the second through hole 122, and the first through hole 121 and the second through hole 122 are disposed in a polygonal shape, and the two are disposed obliquely with respect to the symmetry axis of the reinforcing plate assembly 12, so that the formed
  • the ribs 12a are staggered and most are not parallel to the contour of the backing plate 11.
  • the ribs 12a in the reinforcing plate assembly 12 are inclined in a plurality of directions, which ensures that the backing plate 11 has better resistance to deformation.
  • a third through hole 123 is formed in the reinforcing plate assembly 12, and the third through hole 123 is defined between the pair of first through holes 121 symmetrically disposed.
  • the third through hole 123 is a symmetrical polygon, and is located at a center position, and each side is respectively provided with a large triangle.
  • 4 is a schematic view showing the structure of the back surface of another display device having different reinforcing plate assemblies 12 according to Embodiment 1 of the present invention.
  • the third through hole 123 is another symmetrical polygon located in the center position. Each of the sides is obliquely disposed with a larger polygonal first through hole 121 and a plurality of smaller polygonal second through holes 122, and the second through hole 122 includes, but is not limited to, a specification.
  • the reinforcing plate assembly 12 of the present embodiment radiates radially from the symmetry axis perpendicular to the long side of the back plate 11, forming a fan-shaped hollow structure, and adjacent hollow holes.
  • a reinforcing rib 12a is formed between them.
  • These radial ribs 12a are symmetrically formed on the left and right sides of the symmetry axis, and also ensure good consistency of the resistance change performance of the reinforcing plate assembly 12.
  • the reinforcing plate assembly 12 of the present embodiment is formed by splicing a plurality of sub-boards 120 , and the upper and lower sub-boards 120 are spliced to form a first through hole 121 and a second through hole 122 .
  • the two left and right sub-boards 120 are spliced to form a third through-hole 123 in the middle.
  • the reinforcing plate assembly 12 formed by the splicing method can be fixedly attached to the outer surface of the backing plate 11 by a corresponding fixing manner to form a reinforcing structure. When some high-stiffness materials cannot be integrally formed or the size is too large to be formed, such a The structure is very practical and does not affect the appearance of the product.
  • the invention is fixed and assembled by separately designing and manufacturing the reinforcing plate assembly and the back plate sub-section, and the reinforcing rib is integrated on the reinforcing plate assembly, and the reinforcing plate assembly also forms a hollow structure at the same time, in the case of ensuring the deformation resistance of the back plate,
  • the backlight module and display device can be customized according to customer needs, and the beautiful shape is designed to meet different needs.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal (AREA)
  • Planar Illumination Modules (AREA)

Abstract

一种背板组件（10），包括背板（11）和加强板组件（12），加强板组件（12）固定在背板（11）外表面，加强板组件（12）上开设有镂空结构以形成若干条交错设置的加强筋（12a）。还公开了一种背光模组和一种显示装置。加强板组件（12）与背板（11）分部单独设计制造后固定在一起，加强筋（12a）集成在加强板组件（12）上，加强板组件（12）上同时还形成镂空结构，在保证背板（11）抗形变性能的情况下，背光模组和显示装置可以根据客户需求个性化定制，设计出美观的形状，满足不同需求。

Description

背板组件、背光模组及显示装置 技术领域
本发明涉及显示技术领域，尤其涉及一种背板组件、背光模组及显示装置。
背景技术
目前，液晶显示装置作为电子设备的显示部件已经广泛的应用于各种电子产品中，这些电子设备的厚度越来越薄；而背光模组作为液晶显示装置中的一个重要部件，其厚度也势必要越来越薄才能满足电子设备的需要。
通常，背光模组具有导光板和设于导光板背部的背板，而在超薄化趋势下，背板也不能做得太厚，这就导致主要起保护导光板作用的背板刚性减弱。现在已知的一种加强背板刚性的方法是在背板上固定若干条加强筋，此种方法比较直接地增强了背板的刚性，但严重影响了背板和显示装置的外观，而且结构并不紧凑，容易使背光模组和显示装置整体变得更厚，不利于显示装置的薄型化。
发明内容
鉴于现有技术存在的不足，本发明提供了一种刚性好、美观的背板组件、背光模组及显示装置。
为了实现上述的目的，本发明采用了如下的技术方案：
一种背板组件，包括背板和加强板组件，所述加强板组件固定在所述背板外表面，且所述加强板组件上开设有镂空结构以形成若干条交错设置的加强筋。
其中，所述加强板组件为金属。
或者，所述加强板组件为碳纤维、钢化玻璃或陶瓷。
其中，所述加强板组件关于所述背板的垂直于长边的对称轴对称。
其中，所述加强板组件上至少开设有一对关于所述加强板组件的对称轴对称的镂空的第一通孔和间隔地围绕所述第一通孔周围的多个第二通孔，所述第一通孔面积大于所述第二通孔。
其中，所述加强板组件上还开设有镂空的第三通孔，所述第三通孔开设在对称设置的一对所述第一通孔之间。
其中，所述加强板组件由多块子板拼接而成，多块所述子板拼接形成所述第一通孔。
或者，所述加强板组件自所述背板的垂直于长边的对称轴朝周围呈辐射状形成扇形的所述镂空结构。
本发明的另一目的在于提供一种背光模组，使用上述的背板组件，且所述加强板组件设于所述背光模组外表面。
本发明的又一目的在于提供一种显示装置，使用上述的背板组件，且所述加强板组件设于所述显示装置外表面。
本发明的加强板组件与背板分部单独设计制造后固定在一起，加强筋集成在加强板组件上，加强板组件上同时还形成镂空结构，在保证背板抗形变性能的情况下，背光模组和显示装置可以根据客户需求个性化定制，设计出美观的形状，满足不同需求。
附图说明
图1为本发明实施例1的显示装置的结构分解示意图。
图2为本发明实施例1的加强板组件安装示意图。
图3为本发明实施例1的一种显示装置的背面结构示意图。
图4为本发明实施例1的另一种显示装置的背面结构示意图。
图5为本发明实施例2的显示装置的背面结构示意图。
图6为本发明实施例3的加强板组件安装示意图。
图7为本发明实施例3的显示装置的背面结构示意图。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
实施例1
参阅图1，本发明实施例的显示装置包括背板组件10、反射片20、导光板30、光学膜片组40、胶框50、液晶面板60及前框70，其中，依次自下而上层叠设置的背板组件10、反射片20、导光板30、光学膜片组40和胶框50组成背光模组，液晶面板60安装在胶框50上表面，由罩设在其上的前框70进行保护和固定。
如图2，其中，背板组件包括背板11和薄板状的加强板组件12，加强板组件12固定在背板11外表面(即非放置导光板30的一侧)，且在加强板组件12上开设有镂空结构以形成若干条交错设置的加强筋12a。
其中，加强板组件12为金属、碳纤维、钢化玻璃或陶瓷等具有较强高刚度材料制成，其弹性模量在200GPa以上，可提供背板的高抗变形性能。加强板组件12可通过螺丝、胶水或胶带等方式固定到背板上，可更换性能好，适于个性化定制。
结合图3所示，加强板组件12关于背板11的垂直于长边的对称轴(即如图3所示视图的纵向上的对称轴)对称，加强板组件12上的加强筋12a和相应的镂空结构也相应对称设置，使得背板11具有均匀的刚性，避免各处受力不均。
具体地，本实施例的加强板组件12上至少开设有一对关于加强板组件12的对称轴对称的镂空的第一通孔121和间隔地围绕第一通孔121周围的若干第二通孔122，其中，第一通孔121面积大于第二通孔122，且第一通孔121与第二通孔122设置为多边形，且二者相对于加强板组件12的对称轴倾斜设置，使得形成的加强筋12a交错设置且绝大部分不与背板11的轮廓平行。这样，加强板组件12内的加强筋12a在多个方向上倾斜，可以保证背板11具有更好的抗形变能力。
其中，加强板组件12上还开设有镂空的第三通孔123，第三通孔123开设在对称设置的一对第一通孔121之间。
图3为本发明实施例1的一种显示装置的背面结构示意图，该种加强板组件12中，第三通孔123为对称的多边形，位于正中位置，其每侧分别设置一个较大的三角形的第一通孔121和若干个较小的三角形的第二通孔122。图4为本发明实施例1的另一种具有不同加强板组件12的显示装置的背面结构示意图，该种加强板组件12中，第三通孔123为另一种对称的多边形，位于正中位置，其每侧分别倾斜设置一个较大的多边形的第一通孔121和若干个较小的多边形的第二通孔122，第二通孔122包括且不限于一种规格。
实施例2
如图5所示，与实施例1不同，本实施例的加强板组件12自背板11的垂直于长边的对称轴朝周围呈辐射状发散，形成扇形的镂空结构，相邻的镂空孔之间形成加强筋12a。这些辐射状的加强筋12a在该对称轴的左右两侧对称形成，也可以保证加强板组件12的抗性变性能具有良好的一致性。
实施例3
如图6和图7，与实施例1不同，本实施例的加强板组件12由多块子板120拼接而成，上下两块子板120拼接形成第一通孔121和第二通孔122，左右两块子板120拼接形成中部的第三通孔123。通过拼接的方式形成的加强板组件12再利用相应的固定方式固定贴合到背板11外表面即可构成加强结构，在某些高刚度材料无法一体成型或尺寸过大无法成型时，此种结构非常实用，而且不影响产品外观。
本发明通过将加强板组件与背板分部单独设计制造后固定在一起，加强筋集成在加强板组件上，加强板组件上同时还形成镂空结构，在保证背板抗形变性能的情况下，背光模组和显示装置可以根据客户需求个性化定制，设计出美观的形状，满足不同需求。
以上所述仅是本申请的具体实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本申请原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本申请的保护范围。

Claims (20)

  1. 一种背板组件，其中，包括背板和加强板组件，所述加强板组件固定在所述背板外表面，且所述加强板组件上开设有镂空结构以形成若干条交错设置的加强筋。
  2. 根据权利要求1所述的背板组件，其中，所述加强板组件为金属。
  3. 根据权利要求1所述的背板组件，其中，所述加强板组件为碳纤维、钢化玻璃或陶瓷。
  4. 根据权利要求1所述的背板组件，其中，所述加强板组件关于所述背板的垂直于长边的对称轴对称。
  5. 根据权利要求4所述的背板组件，其中，所述加强板组件上至少开设有一对关于所述加强板组件的对称轴对称的镂空的第一通孔和间隔地围绕所述第一通孔周围的多个第二通孔，所述第一通孔面积大于所述第二通孔。
  6. 根据权利要求5所述的背板组件，其中，所述加强板组件上还开设有镂空的第三通孔，所述第三通孔开设在对称设置的一对所述第一通孔之间。
  7. 根据权利要求4所述的背板组件，其中，所述加强板组件由多块子板拼接而成，多块所述子板拼接形成所述第一通孔。
  8. 根据权利要求4所述的背板组件，其中，所述加强板组件自所述背板的垂直于长边的对称轴朝周围呈辐射状形成扇形的所述镂空结构。
  9. 一种背光模组，其中，包括背板组件，所述背板组件包括背板和加强板组件，所述加强板组件固定在所述背板外表面，且所述加强板组件上开设有镂空结构以形成若干条交错设置的加强筋。
  10. 根据权利要求9所述的背光模组，其中，所述加强板组件关于所述背板的垂直于长边的对称轴对称。
  11. 根据权利要求9所述的背光模组，其中，所述加强板组件上至少开设有一对关于所述加强板组件的对称轴对称的镂空的第一通孔和间隔地围绕所述第一通孔周围的多个第二通孔，所述第一通孔面积大于所述第二通孔。
  12. 根据权利要求11所述的背光模组，其中，所述加强板组件上还开设有镂空的第三通孔，所述第三通孔开设在对称设置的一对所述第一通孔之间。
  13. 根据权利要求10所述的背光模组，其中，所述加强板组件由多块子板拼接而成，多块所述子板拼接形成所述第一通孔。
  14. 根据权利要求10所述的背光模组，其中，所述加强板组件自所述背板的垂直于长边的对称轴朝周围呈辐射状形成扇形的所述镂空结构。
  15. 一种显示装置，其中，包括背板组件，所述背板组件包括背板和加强板组件，所述加强板组件固定在所述背板外表面，且所述加强板组件上开设有镂空结构以形成若干条交错设置的加强筋。
  16. 根据权利要求15所述的显示装置，其中，所述加强板组件关于所述背板的垂直于长边的对称轴对称。
  17. 根据权利要求15所述的显示装置，其中，所述加强板组件上至少开设有一对关于所述加强板组件的对称轴对称的镂空的第一通孔和间隔地围绕所述第一通孔周围的多个第二通孔，所述第一通孔面积大于所述第二通孔。
  18. 根据权利要求17所述的显示装置，其中，所述加强板组件上还开设有镂空的第三通孔，所述第三通孔开设在对称设置的一对所述第一通孔之间。
  19. 根据权利要求16所述的显示装置，其中，所述加强板组件由多块子板拼接而成，多块所述子板拼接形成所述第一通孔。
  20. 根据权利要求16所述的显示装置，其中，所述加强板组件自所述背板的垂直于长边的对称轴朝周围呈辐射状形成扇形的所述镂空结构。
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