WO2013071635A1 - 显示装置的拼接式背板结构 - Google Patents

显示装置的拼接式背板结构 Download PDF

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Publication number
WO2013071635A1
WO2013071635A1 PCT/CN2011/082889 CN2011082889W WO2013071635A1 WO 2013071635 A1 WO2013071635 A1 WO 2013071635A1 CN 2011082889 W CN2011082889 W CN 2011082889W WO 2013071635 A1 WO2013071635 A1 WO 2013071635A1
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WO
WIPO (PCT)
Prior art keywords
mounting member
display device
reinforcing rib
mounting part
spliced
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2011/082889
Other languages
English (en)
French (fr)
Inventor
郭仪正
萧宇均
黄冲
程加河
阙成文
李全
杨流洋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TCL China Star Optoelectronics Technology Co Ltd
Original Assignee
Shenzhen China Star Optoelectronics Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Priority to US13/381,932 priority Critical patent/US9170446B2/en
Publication of WO2013071635A1 publication Critical patent/WO2013071635A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • G02F1/133608—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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133314—Back frames
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133328—Segmented frames
    • 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
    • G02F1/133628—Illuminating devices with cooling means

Definitions

  • the invention relates to a spliced backboard structure of a display device, in particular to an application
  • the liquid crystal display device is abbreviated as LCD (Liquid Crystal Display). Its working principle is to place liquid crystal molecules in two parallel glass. There are many vertical and horizontal small wires between the two glass plates, and the liquid crystal molecules can be controlled to change direction by energization or not. , refracting light to produce a picture. Since the liquid crystal display device has many advantages such as thin body, power saving, and no radiation, it has been widely used.
  • the backlight module is an important component of the liquid crystal display device.
  • the existing backlight module generally includes an optical film, a light guide plate, a backlight unit, and a back plate.
  • the existing back plate In order to meet the requirements of a large-sized liquid crystal display device, the existing back plate generally A one-piece backsheet is used, which is typically integrally formed using metal stamping or plastic injection.
  • the integral backplane increases the weight of the display device, and requires more material for production and higher cost.
  • the large-sized backboard requires large and costly stamping equipment during the production process.
  • the molds used in the production process of the back sheet are large in size, complicated in structure, and also costly.
  • Chinese Patent No. CN201672468 proposes a back panel structure of a backlight module, which is spliced into a back panel by using a plurality of mounting strips, and the mounting strips are criss-crossed.
  • the above-mentioned patents have many mounting strips for the back panel structure, and the connection and installation are cumbersome, and it is still necessary to separately manufacture the mounting strips, which increases the cost of secondary processing, and the structural strength of the backboard, especially the outer frame. The structural strength is insufficient and it is difficult to meet the needs of the backplane application. Summary of the invention
  • the object of the present invention is to provide a spliced backplane structure of a display device, which is respectively formed by splicing L-shaped and in-line mounting members.
  • the outer frame structure has better strength, low cost, easy fabrication, and can be
  • the mounting pieces are spliced after being divided to form back sheets of different sizes, so that the production molds of the back sheets can be shared, thereby reducing material cost and mold cost.
  • Another object of the present invention is to provide a spliced backplane structure of a display device, each of which is made of a highly thermally conductive material and a relatively low cost material, which is advantageous for heat dissipation and has low cost.
  • Another object of the present invention is to provide a spliced backplane structure of a display device, wherein the joints of the mounting members are reinforced with a rib structure, which further improves the strength of the splicing.
  • the present invention provides a spliced backplane structure of a display device, comprising: a first mounting member and a second mounting member respectively in an L shape; and a third mounting member and a fourth mounting portion respectively in a shape of a figure
  • the two ends of the first mounting member are respectively connected with the two ends of the second mounting member to form a closed outer frame
  • the third mounting member is disposed in the outer frame and the two ends are respectively associated with the first mounting member and the second mounting member
  • the fourth mounting member is disposed in the outer frame and the two ends are respectively connected to the first mounting member and the second mounting member to form a hollow backing plate.
  • the first mounting member and the second mounting member are respectively made of a highly thermally conductive material.
  • the first mounting member is made of a highly thermally conductive material.
  • the highly thermally conductive material is aluminum.
  • the third mounting member and the fourth mounting member are respectively made of galvanized steel sheets or plastic.
  • the second mounting member, the third mounting member and the fourth mounting member are respectively made of galvanized steel sheet or plastic.
  • the first mounting member has a convex first reinforcing rib at a joint with the second mounting member, the third mounting member and the fourth mounting member, and the second mounting member is in the first mounting member and the third mounting member
  • the connecting portion of the fourth mounting member respectively has a convex second reinforcing rib
  • the second reinforcing rib is overlapped with the first reinforcing rib
  • the third mounting member has a convex portion at a joint with the first mounting member and the second mounting member respectively
  • the third reinforcing rib, the third reinforcing rib is overlapped with the first reinforcing rib and the second reinforcing rib respectively
  • the fourth mounting member has a fourth reinforcing portion respectively at the joint with the first mounting member and the second mounting member
  • the ribs and the fourth reinforcing ribs are overlapped with the first reinforcing rib and the second reinforcing rib, respectively.
  • first mounting member and the second mounting member Between the first mounting member and the second mounting member, between the third mounting member and the first mounting member and the second mounting member, and between the fourth mounting member and the first mounting member and the second mounting member Riveting, screwing or laser welding connections.
  • the first mounting member has a connecting side portion and a left side portion
  • the second mounting member has a connecting side portion and a right side portion
  • the two ends of the third mounting member and the two ends of the fourth mounting member respectively The side portion and the ground side portion are connected, and the third mounting member and the fourth mounting member are parallel to each other.
  • the first mounting member is identical in structure to the second mounting member, and the third mounting member is identical in structure to the fourth mounting member.
  • the present invention provides a spliced backplane structure of a display device, which is respectively formed by splicing L-shaped and in-line mounting members, and the outer frame structure has better strength, low cost, and easy For fabrication, the mounting members can be spliced after being divided to form different sizes of back sheets, so that the production molds of the back sheets can be shared, thereby reducing material cost and mold cost; at the same time, each mounting member is made of high thermal conductive material and It is made of low-cost materials, which is good for heat dissipation and has low cost.
  • the joints of the mounting parts are reinforced with a rib structure, which further improves the strength of the splicing.
  • FIG. 1 is an exploded perspective view showing a spliced back plate structure of a display device of the present invention
  • Figure 2 is a schematic view of the combination of Figure 1;
  • Figure 3 is a cross-sectional view showing the first reinforcing rib and the third reinforcing rib at the junction of the first mounting member and the third mounting member of Figure 2 in an overlapping manner.
  • the present invention provides a spliced backplane structure of a display device, comprising: a first mounting member 10 and a second mounting member 20 respectively in an L shape, and a third in a shape of a figure, respectively.
  • the mounting member 30 and the fourth mounting member 40 are respectively connected to the two ends of the second mounting member 20 to form a closed outer frame, and the third mounting member 30 is disposed in the outer frame and at both ends.
  • the first mounting member 40 and the second mounting member 20 are respectively connected to the first mounting member 10 and the second mounting member 20, and the two ends are respectively connected with the first mounting member 10 and the second mounting member 20 to form a hollow backing plate.
  • the back plates of the present invention are respectively formed by splicing L-shaped and in-line mounting members, and the outer frame structure is better in strength, low in cost, and easy to manufacture, and the mounting members produced by the same mold can be spliced after being divided to form.
  • Different sizes of back sheets different size back sheets are used in various sizes such as 32 inch, 46 inch and larger or smaller liquid crystal display devices, so that the production molds of different sizes of back sheets can be shared, and at the same time,
  • the first mounting member 10 and the second mounting member 20 are identical in structure
  • the third mounting member 30 is identical in structure to the fourth mounting member 40, so that the first mounting member 10 and the second mounting member 20 are produced.
  • the mold can be shared, the third mounting member 30 and the fourth
  • the production molds of the mounting member 40 can be shared, thereby greatly reducing the material cost and the mold cost, and splicing to form a hollow back sheet.
  • the L-shaped first mounting member 10 and the second mounting member 20 are used to form the outer frame, so that the outer frame has a better outer frame structure, which overcomes the defect of insufficient strength of the spliced back plate.
  • the mounting member 20 can be connected by riveting, screwing or laser welding.
  • the first mounting member 10 has a connecting side portion 101 and a left side portion 102.
  • the second mounting member 20 has an associated ground side portion 202 and a right side portion 201, and a third mounting member. Both ends of the 30 and the second mounting member 40 are respectively connected to the side portion 101 of the first mounting member 10 and the ground portion 202 of the second mounting member 20, and the third mounting member 30 and the fourth mounting member 40 are respectively connected. Parallel to each other.
  • the present invention further strengthens the strength of the backboard by using the same rib structure at the joint of each of the mounting members.
  • the first mounting member 10 is mounted with the second mounting member 20, the third mounting member 30, and the fourth mounting member.
  • the joints of the members 40 respectively have raised first reinforcing ribs 12, and the second mounting members 20 respectively have convex second portions at the joints with the first mounting member 10, the third mounting member 30 and the fourth mounting member 40
  • the rib 22, the second rib 22 overlaps with the first rib 12, and the third mounting member 30 has a convex third rib 32 at the joint with the first mounting member 10 and the second mounting member 20, respectively.
  • the third ribs 32 are respectively overlapped with the first ribs 12 and the second ribs 22, and the fourth mounting member 30 has a convex fourth rib 42 at the joint with the first mounting member 10 and the second mounting member 20, respectively.
  • the fourth reinforcing ribs 42 are overlapped with the first reinforcing ribs 12 and the second reinforcing ribs 22, respectively.
  • the invention further improves the strength of the backing board joint by reinforcing the rib structure, further overcomes the defects of insufficient strength of the spliced back board, and satisfies various design requirements of the back board, and the mounting parts can be riveted, screwed or
  • the mounting manners of the first reinforcing ribs 12 are convexly provided with the receiving grooves, and the two sides of the third reinforcing ribs 32 are provided on the two sides of the third reinforcing ribs 32.
  • the riveted joint 321 is placed in the receiving groove (as shown in Figure 3).
  • the present invention is made of different materials for different positions, such as aluminum and galvanized steel sheets, to meet the requirements of heat dissipation and minimize product cost, as needed.
  • the first mounting member 10 and the second mounting member 20 are respectively made of a highly thermally conductive material, because the first mounting member 10 and the second mounting member are
  • the mounting members 20 are all L-shaped, which increases the heat dissipation area and is advantageous for heat dissipation.
  • the high thermal conductive material of the present invention is a thermal conductive material having a thermal conductivity (thermal conductivity) W/(m ⁇ k) of 200 or more, preferably aluminum for use.
  • the third mounting member 30 and the fourth mounting member 40 are respectively made of galvanized steel sheets or plastics to reduce the cost of the product while maintaining the backing plate with a certain strength;
  • the first mounting member 10 (or the second mounting member) is made of a highly thermally conductive material, and the remaining mounting members are The two mounting members 20 (or the first mounting member), the third mounting member 30, and the fourth mounting member 40 are respectively made of galvanized steel sheets or plastic.

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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)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Connection Of Plates (AREA)

Abstract

一种显示装置的拼接式背板结构，其包括：分别呈L形的一第一安装件（10）及一第二安装件（20）、及分别呈一字形的一第三安装件（30）及一第四安装件（40），第一安装件（10）的两端分别与第二安装件（20）的两端连接而形成封闭状的外框，第三安装件（30）置于外框内且两端分别与第一安装件（10）及第二安装件（20）连接，第四安装件（40）置于外框内且两端分别与第一安装件（10）及第二安装件（20）连接而形成镂空状的背板。所述外框结构强度较佳，成本低，易于制作，且可将各安装件在分割后进行拼接以形成不同尺寸的背板，使背板的生产模具可以共用，从而降低材料成本及模具成本。

Description

显示装置的拼接式背板结构 技术领域
本发明涉及一种显示装置的拼接式背板结构， 尤其涉及一种应用于
TFT-LCD显示装置的背光模组上的拼接式背板结构。 背景技术
液晶显示装置简称 LCD ( Liquid Crystal Display ) , 其工作原理是在 两片平行的玻璃当中放置液晶分子， 两片玻璃中间有许多垂直和水平的细 小电线,透过通电与否来控制液晶分子改变方向， 将光线折射出来产生画 面。 由于液晶显示装置具有机身薄、 省电、 无辐射等众多优点， 因此得到 了广泛的应用。 背光模组是液晶显示装置中的重要组成部分， 现有背光模 组一般包括光学膜、 导光板、 背光单元、 及背板等， 为了满足大尺寸液晶 显示装置的需求， 现有的背板一般使用整体式的背板， 其一般使用金属冲 压或者塑料注射方式整体成型。 然而， 整体式的背板增加了显示装置的重 量， 且生产所需的材料多， 成本较高， 同时， 大尺寸的背板在生产过程中 还需使用较大且成本较高的冲压设备， 且背板生产过程中使用的模具尺寸 很大， 结构复杂， 且同样成本高。
为了解决上述问题， 中国专利 CN201672468提出一种背光模组的后背 板结构， 其釆用若干安装条拼接成后背板， 各安装条之间纵横交错。 然 而， 上述专利釆用的后背板结构釆用的安装条较多， 连接安装繁瑣， 且其 仍然需要分别制作安装条， 增加了二次加工的成本， 同时背板的结构强度 特别是外框的结构强度不足， 难以满足背板应用上的需求。 发明内容
本发明的目的在于， 提供一种显示装置的拼接式背板结构， 其分别由 L 形及一字形的安装件拼接而成， 外框结构强度较佳， 成本低， 易于制 作， 且可将各安装件在分割后进行拼接以形成不同尺寸的背板， 使背板的 生产模具可以共用， 从而降低材料成本及模具成本。
本发明的另一目的在于， 提供一种显示装置的拼接式背板结构， 其各 安装件分别由高导热材料以及成本较低的材料制成， 利于散热并具有较低 的成本。 本发明的又一目的在于， 提供一种显示装置的拼接式背板结构， 其各 安装件的连接处釆用加强筋结构， 进一步提高了拼接处强度。
本发明提供一种显示装置的拼接式背板结构， 其包括： 分别呈 L形的 一第一安装件及一第二安装件、 及分别呈一字形的一第三安装件及一第四 安装件， 第一安装件的两端分别与第二安装件的两端连接而形成封闭状的 外框， 第三安装件置于外框内且两端分别与第一安装件及第二安装件连 接， 第四安装件置于外框内且两端分别与第一安装件及第二安装件连接而 形成镂空状的背板。
所述第一安装件与第二安装件分别由高导热材料制成。
所述第一安装件由高导热材料制成。
所述高导热材料为铝。
所述第三安装件及第四安装件分别由镀锌钢板或塑料制成。
所述第二安装件、 第三安装件及第四安装件分别由镀锌钢板或塑料制 成。
所述第一安装件在与第二安装件、 第三安装件及第四安装件的连接处 分别具有凸起的第一加强筋， 第二安装件在与第一安装件、 第三安装件及 第四安装件的连接处分别具有凸起的第二加强筋， 第二加强筋与第一加强 筋重叠配合， 第三安装件在与第一安装件及第二安装件连接处分别具有凸 起的第三加强筋， 第三加强筋分别与第一加强筋及第二加强筋重叠配合， 第四安装件在与第一安装件及第二安装件连接处分别具有凸起的第四加强 筋， 第四加强筋分别与第一加强筋及第二加强筋重叠配合。
所述第一安装件与第二安装件之间、 第三安装件与第一安装件及第二 安装件之间、 及第四安装件与第一安装件及第二安装件之间釆用铆接、 螺 丝锁附或镭射焊接的连接方式。
所述第一安装件与第二安装件之间、 第三安装件分别与第一安装件及 第二安装件之间、 及第四安装件分别与第一安装件及第二安装件之间釆用 铆接、 螺丝锁附或镭射焊接的连接方式。
所述第一安装件具有相连的天侧部及左侧部， 第二安装件具有相连的 地侧部及右侧部， 第三安装件的两端及第四安装件的两端分别与天侧部及 地侧部连接， 且第三安装件及第四安装件之间相互平行。
所述第一安装件与第二安装件结构相同， 第三安装件与第四安装件结 构相同。
本发明的有益效果： 本发明提供一种显示装置的拼接式背板结构， 其 分别由 L形及一字形的安装件拼接而成， 外框结构强度较佳， 成本低， 易 于制作， 且可将各安装件在分割后进行拼接以形成不同尺寸的背板， 使背 板的生产模具可以共用， 从而降低材料成本及模具成本； 同时， 各安装件 分别由高导热材料以及成本较低的材料制成， 利于散热并具有较低的成 本； 另外， 各安装件的连接处釆用加强筋结构， 进一步提高了拼接处强 度。
为了能更进一步了解本发明的特征以及技术内容， 请参阅以下有关本 发明的详细说明与附图， 然而附图仅提供参考与说明用， 并非用来对本发 明加以限制。 附图说明
下面结合附图， 通过对本发明的具体实施方式详细描述， 将使本发明 的技术方案及其它有益效果显而易见。
附图中，
图 1为本发明显示装置的拼接式背板结构的分解示意图；
图 2为图 1为组合示意图；
图 3为图 2中第一安装件与第三安装件的连接处的第一加强筋与第三 加强筋重叠配合的剖视图。 具体实施方式
为更进一步阐述本发明所釆取的技术手段及其效果， 以下结合本发明 的优选实施例及其附图进行详细描述。
如图 1-3 所示， 本发明提供一种显示装置的拼接式背板结构， 其包 括： 分别呈 L形的第一安装件 10及第二安装件 20、 及分别呈一字形的第 三安装件 30及第四安装件 40, 第一安装件 10 的两端分别与第二安装件 20 的两端连接而形成封闭状的外框， 第三安装件 30置于外框内且两端分 别与第一安装件 10及第二安装件 20连接， 第四安装件 40置于外框内且 两端分别与第一安装件 10及第二安装件 20连接而形成镂空状的背板。 本 发明的背板分别由 L形及一字形的安装件拼接而成， 外框结构强度较佳， 成本低， 易于制作， 且可将同一模具生产出来的各安装件在分割后进行拼 接以形成不同尺寸的背板， 不同尺寸的背板应用于各种不同尺寸例如 32 寸、 46寸以及更大或更小尺寸的液晶显示装置， 使不同尺寸的背板的生产 模具可以共用， 同时， 作为本发明的优选实施例， 该第一安装件 10 与第 二安装件 20结构相同， 第三安装件 30与第四安装件 40结构相同， 使第 一安装件 10与第二安装件 20的生产模具可共用， 第三安装件 30及第四 安装件 40 的生产模具可共用， 从而大大降低材料成本及模具成本， 拼接 形成镂空状背板。
本发明釆用 L形第一安装件 10和第二安装件 20来形成外框， 使外框 具有较佳的外框结构， 克服拼接式背板的强度不足的缺陷。 该第一安装件 10与第二安装件 20之间、 第三安装件 30与第一安装件 10及第二安装件 20之间、 及第四安装件 40与第一安装件 10及第二安装件 20之间可釆用 铆接、 螺丝锁附或镭射焊接等连接方式。 作为本发明的一优选实施例， 该 第一安装件 10具有相连的天侧部 101及左侧部 102, 第二安装件 20具有 相连的地侧部 202及右侧部 201 , 第三安装件 30的两端及第四安装件 40 的两端分别与第一安装件 10的天侧部 101及第二安装件 20的地侧部 202 连接， 且第三安装件 30及第四安装件 40之间相互平行。
优选的， 本发明还在各安装件连接处釆用相同的加强筋结构来进一步 加强背板的强度， 该第一安装件 10在与第二安装件 20、 第三安装件 30及 第四安装件 40的连接处分别具有凸起的第一加强筋 12, 第二安装件 20在 与第一安装件 10、 第三安装件 30及第四安装件 40的连接处分别具有凸起 的第二加强筋 22, 第二加强筋 22与第一加强筋 12重叠配合， 第三安装件 30在与第一安装件 10及第二安装件 20连接处分别具有凸起的第三加强筋 32, 第三加强筋 32分别与第一加强筋 12及第二加强筋 22重叠配合， 第 四安装件 30在与第一安装件 10及第二安装件 20连接处分别具有凸起的 第四加强筋 42, 第四加强筋 42分别与第一加强筋 12及第二加强筋 22重 叠配合。 本发明通过加强筋结构， 进一步提高了背板拼接处强度， 进一步 克服拼接式背板强度不足的缺陷， 满足背板的各类设计需求， 各安装件之 间可釆用铆接、 螺丝锁附或镭射焊接等连接方式， 作为本发明的优选实施 例， 各安装件之间釆用铆接的连接方式， 第一加强筋 12 的两侧凸设有容 置槽， 第三加强筋 32 的两侧的铆接头 321 上置于容置槽内 （如图 3 所 示） 。
进一步的， 本发明根据需要， 对不同位置的安装件使用不同的材料制 作， 比如铝和镀锌钢板搭配， 以满足散热等需求并使产品成本最低化。 具 体的， 本发明的背板应用于两侧入光的背光模组中时， 该第一安装件 10 与第二安装件 20分别由高导热材料制成， 由于第一安装件 10与第二安装 件 20均呈 L形， 增加了散热面积， 有利于散热， 本发明所述的高导热材 料为热导率 （导热系数） W/(m · k)200 以上的导热材料， 优选釆用铝材 料， 以满足导热的需求， 同时， 该第三安装件 30及第四安装件 40分别由 镀锌钢板或塑料制成以降低产品的成本同时保持背板具有一定的强度； 作 为本发明的另一优选实施例， 背板应用于单侧入光的背光模组中时， 该第 一安装件 10 (或第二安装件） 由高导热材料制成， 其余安装件如第二安装 件 20 (或第一安装件 ) 、 第三安装件 30及第四安装件 40分别由镀锌钢板 或塑料制成。
以上所述， 对于本领域的普通技术人员来说， 可以根据本发明的技术 方案和技术构思作出其他各种相应的改变和变形， 而所有这些改变和变形 都应属于本发明权利要求的保护范围。

Claims

权 利 要 求
1、 一种显示装置的拼接式背板结构， 其包括： 分别呈 L 形的一第一 安装件及一第二安装件、 及分别呈一字形的一第三安装件及一第四安装 件， 第一安装件的两端分别与第二安装件的两端连接而形成封闭状的外 框， 第三安装件置于外框内且两端分别与第一安装件及第二安装件连接， 第四安装件置于外框内且两端分别与第一安装件及第二安装件连接而形成 镂空状的背板。
2、 如权利要求 1 所述的显示装置的拼接式背板结构， 其中， 所述第 一安装件与第二安装件分别由高导热材料制成。
3、 如权利要求 1 所述的显示装置的拼接式背板结构， 其中， 所述第 一安装件由高导热材料制成。
4、 如权利要求 2 所述的显示装置的拼接式背板结构， 其中， 所述高 导热材料为铝。
5、 如权利要求 2 所述的显示装置的拼接式背板结构， 其中， 所述第 三安装件及第四安装件分别由镀锌钢板或塑料制成。
6、 如权利要求 3 所述的显示装置的拼接式背板结构， 其中， 所述第 二安装件、 第三安装件及第四安装件分别由镀锌钢板或塑料制成。
7、 如权利要求 1 所述的显示装置的拼接式背板结构， 其中， 所述第 一安装件在与第二安装件、 第三安装件及第四安装件的连接处分别具有凸 起的第一加强筋， 第二安装件在与第一安装件、 第三安装件及第四安装件 的连接处分别具有凸起的第二加强筋， 第二加强筋与第一加强筋重叠配 合， 第三安装件在与第一安装件及第二安装件连接处分别具有凸起的第三 加强筋， 第三加强筋分别与第一加强筋及第二加强筋重叠配合， 第四安装 件在与第一安装件及第二安装件连接处分别具有凸起的第四加强筋， 第四 加强筋分别与第一加强筋及第二加强筋重叠配合。
8、 如权利要求 1 所述的显示装置的拼接式背板结构， 其中， 所述第 一安装件与第二安装件之间、 第三安装件与第一安装件及第二安装件之 间、 及第四安装件与第一安装件及第二安装件之间釆用铆接、 螺丝锁附或 镭射焊接的连接方式。
9、 如权利要求 1 所述的显示装置的拼接式背板结构， 其中， 所述第 一安装件具有相连的天侧部及左侧部， 第二安装件具有相连的地侧部及右 侧部， 第三安装件的两端及第四安装件的两端分别与天侧部及地侧部连 接， 且第三安装件及第四安装件之间相互平行。
10、 如权利要求 1 所述的显示装置的拼接式背板结构， 其中， 所述第 一安装件与第二安装件结构相同， 第三安装件与第四安装件结构相同。
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