WO2014032247A1 - 一种背框和液晶显示装置 - Google Patents

一种背框和液晶显示装置 Download PDF

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Publication number
WO2014032247A1
WO2014032247A1 PCT/CN2012/080755 CN2012080755W WO2014032247A1 WO 2014032247 A1 WO2014032247 A1 WO 2014032247A1 CN 2012080755 W CN2012080755 W CN 2012080755W WO 2014032247 A1 WO2014032247 A1 WO 2014032247A1
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WO
WIPO (PCT)
Prior art keywords
back frame
primary assembling
body portion
convex hull
assembling piece
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/CN2012/080755
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English (en)
French (fr)
Inventor
黄冲
萧宇均
郭仪正
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 US13/634,878 priority Critical patent/US9207710B2/en
Publication of WO2014032247A1 publication Critical patent/WO2014032247A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1601—Constructional details related to the housing of computer displays, e.g. of CRT monitors, of flat displays
    • 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
    • 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
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/18—Construction of rack or frame
    • 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
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2200/00—Indexing scheme relating to G06F1/04 - G06F1/32
    • G06F2200/16—Indexing scheme relating to G06F1/16 - G06F1/18
    • G06F2200/161—Indexing scheme relating to constructional details of the monitor
    • G06F2200/1612—Flat panel monitor

Definitions

  • the present invention relates to the field of display technologies, and in particular to a back frame and a liquid crystal display device.
  • the liquid crystal display device includes a liquid crystal panel and a backlight module.
  • the back of the backlight module has a back frame for matching the front frame to fix the liquid crystal panel and the backlight module.
  • the back frame in the prior art is generally an integral back frame, that is, a back frame integrally formed by metal stamping or plastic injection, which makes the material cost of the liquid crystal display device high.
  • the cost is higher due to the use of larger punching equipment, and the corresponding mold size is large and the structure is complicated, resulting in further increase in production cost.
  • molds of different sizes are required, which are costly and have a long product development cycle.
  • the technical problem to be solved by the present invention is to provide a back frame and a liquid crystal display device, which can form a back frame of different sizes by using a splicing piece developed by the same mold, thereby saving mold cost and reducing production cost.
  • a technical solution adopted by the present invention is to provide a back frame including at least two primary assembling pieces, and adjacent main assembling pieces are fixedly connected by a joint portion, and at each joint portion.
  • a plurality of positioning points are disposed at different positions, and the adjacent primary assembling pieces are fixedly connected by selecting different positioning points, so that at least two primary assembling pieces are connected in a splicing manner to form different sizes of the back frame; wherein, multiple positioning The point is a riveting positioning hole, a screw locking hole, a non-hole riveting point or a welding point, and the joint portion of the main assembling piece is further provided with a convex hull structure, and a plurality of positioning points are arranged around the convex hull structure.
  • the convex hull structure includes a first convex hull and a second convex hull disposed at the joint portion of the two adjacent primary assembling pieces, and the second convex hull is accommodated in the space defined by the first convex hull.
  • the back frame includes a first main assembling piece and a second main assembling piece
  • the first main assembling piece includes a first main body portion and a first extending portion extending perpendicularly from one end of the first main body portion
  • the second main assembling piece includes the first The second body portion and the second extending portion extending perpendicularly from the one end of the second body portion, the first extending portion and the second body portion, the second extending portion and the first body portion are fixedly connected by the positioning points, respectively, to form a back frame.
  • the back frame includes two first primary assembling pieces arranged in parallel and two second primary assembling pieces arranged in parallel.
  • the first primary assembling piece and the second primary assembling piece are respectively fixedly connected through the positioning points, forming a back. frame.
  • another technical solution adopted by the present invention is to provide a back frame including at least two primary assembling pieces, and adjacent main assembling pieces are fixedly connected by a joint portion, and each stitching is performed.
  • a plurality of positioning points are disposed at different positions of the portion, and the adjacent primary assembling pieces are fixedly connected by selecting different positioning points, so that at least two primary assembling pieces are connected in a splicing manner to form different sizes of the back frames.
  • the plurality of positioning points are riveting positioning holes, screw locking holes, non-hole riveting points or welding points.
  • the back frame includes a first main assembling piece and a second main assembling piece
  • the first main assembling piece includes a first main body portion and a first extending portion extending perpendicularly from one end of the first main body portion
  • the second main assembling piece includes the first The second body portion and the second extending portion extending perpendicularly from the one end of the second body portion, the first extending portion and the second body portion, the second extending portion and the first body portion are fixedly connected by the positioning points, respectively, to form a back frame.
  • a plurality of auxiliary brackets are further disposed between the first body portion and the second body portion, and the two ends of the auxiliary bracket are fixedly connected to the first body portion and the second body portion, respectively.
  • the back frame includes two first primary assembling pieces arranged in parallel and two second primary assembling pieces arranged in parallel.
  • the first primary assembling piece and the second primary assembling piece are respectively fixedly connected through the positioning points, forming a back. frame.
  • a plurality of auxiliary brackets are further disposed between the two first assembling pieces, and two ends of the auxiliary brackets are respectively fixedly connected with the first assembling piece.
  • the joint portion of the main assembling piece is further provided with a convex hull structure, and a plurality of positioning points are disposed around the convex hull structure.
  • the convex hull structure includes a first convex hull and a second convex hull disposed at the joint portion of the two adjacent primary assembling pieces, and the second convex hull is accommodated in the space defined by the first convex hull.
  • the convex hull structure is integrally extruded with the main splicing piece.
  • a liquid crystal display device including a back frame, the back frame including at least two primary assembling pieces, and adjacent main assembling pieces being stitched together
  • the portion is fixedly connected, and a plurality of positioning points are disposed at different positions of each joint portion, and the adjacent primary assembling pieces are fixedly connected by selecting different positioning points, so that at least two primary assembling pieces are connected in a splicing manner to form different The size of the back frame.
  • the plurality of positioning points are riveting positioning holes, screw locking holes, non-hole riveting points or welding points.
  • the back frame includes a first main assembling piece and a second main assembling piece
  • the first main assembling piece includes a first main body portion and a first extending portion extending perpendicularly from one end of the first main body portion
  • the second main assembling piece includes the first The second body portion and the second extending portion extending perpendicularly from the one end of the second body portion, the first extending portion and the second body portion, the second extending portion and the first body portion are fixedly connected by the positioning points, respectively, to form a back frame.
  • the back frame includes two first primary assembling pieces arranged in parallel and two second primary assembling pieces arranged in parallel.
  • the first primary assembling piece and the second primary assembling piece are respectively fixedly connected through the positioning points, forming a back. frame.
  • the joint portion of the main assembling piece is further provided with a convex hull structure, and a plurality of positioning points are disposed around the convex hull structure.
  • the invention has the beneficial effects that: the invention forms the back frame by using the main splicing piece in a splicing manner, and the main splicing piece is provided with a plurality of positioning points at different positions, and the same mold can be realized by fixedly connecting the positioning points at different positions.
  • the main splicing pieces form different sizes of the back frame, especially the back frame of similar size, which can save the mold cost, reduce the production cost, and shorten the product development cycle.
  • FIG. 1 is a schematic exploded view showing the structure of a back frame according to a first embodiment of the present invention
  • FIG. 2 is a schematic structural view of a back frame according to a first embodiment of the present invention.
  • Figure 3 is a partial cross-sectional view of the back frame shown in Figure 2 at the joint portion;
  • Figure 4 is an exploded perspective view of the back frame shown in Figure 2 at the joint portion;
  • Figure 5 is a partial plan view showing the dimension adjustment of the back frame shown in Figure 2 in one dimension
  • Figure 6 is a partial cross-sectional view of the back frame shown in Figure 2 after being adjusted in one dimension;
  • Figure 7 is a schematic view showing the size adjustment of the back frame shown in Figure 2 in a two-dimensional direction;
  • Figure 8 is a schematic exploded view showing the structure of the back frame of the second embodiment of the present invention.
  • Figure 9 is a schematic view showing the structure of a back frame of a second embodiment of the present invention.
  • the back frame 100 includes a first primary assembling piece 110 , a second primary assembling piece 120 , and two auxiliary brackets 150 .
  • the first primary assembling piece 110 and the second primary assembling piece 120 are respectively in an "L" shape, and the outer frame of the back frame 100 is formed by the assembling portion 130 in a splicing manner.
  • the first primary assembling piece 110 includes a first main body portion 111 and a first extending portion 112 extending perpendicularly from one end of the first main body portion 111
  • the second primary assembling piece 120 includes a second main body portion 121 and from the second A second extending portion 122 extending perpendicularly from one end of the main body portion 121.
  • the first main body portion 111 and the second extending portion 122, the second main body portion 121 and the first extending portion 112 are respectively fixedly connected by a plurality of positioning points 140 on the splicing portion 130, thereby forming the back frame 100 as shown in FIG.
  • the outer frame is respectively fixedly connected by a plurality of positioning points 140 on the splicing portion 130.
  • both ends of the auxiliary bracket 150 are connected to the first body portion 111 and the second body portion 121, respectively, and the auxiliary bracket 150 is parallel to the first extending portion 112 and the second extending portion 122.
  • the auxiliary bracket 150 is mainly used to increase the structural strength of the back frame 100 and to maintain the structural stability of the back frame 100.
  • One or more of the auxiliary frames 150 may be provided as needed, and are not limited to the two described in the embodiment.
  • the first primary assembling piece 110 and the second primary assembling piece 120 are respectively provided with a convex hull structure 160 on the joint portion 130.
  • the convex hull structure 160 is integrally extruded with the first primary assembling piece 110 and the second primary assembling piece 120.
  • 3 is a partial cross-sectional view of the back frame 100 shown in FIG. 2 at the joint 130.
  • the convex hull structure 160 includes a first convex hull 161 and a second convex hull 162.
  • the first convex hull 161 is disposed on the joint portion 130 of the second main body portion 121 and the first main body portion 111, and second.
  • the convex hull 162 is disposed on the joint portion 130 of the first extending portion 112 and the second extending portion 122, and the second convex hull 162 is received in the space defined by the first convex hull 161, and is sized according to the back frame 100 Adjust to slide. Wherein, the top wall of the first convex hull 161 and the top wall of the second convex hull 162 are closely adjacent.
  • the convex hull structure 160 in order to prevent the back frame 100 from being deformed by the light guide plate and the liquid crystal panel when the back frame 100 is assembled into the liquid crystal display device, the convex hull structure 160 is deformed, and the bottom of the second convex hull 162 is further provided with the support structure 163. After the convex hull structure 160 is stamped and formed, the support structure 163 is assembled on the first extension portion 112 of the first primary assembling piece 110 and the second extending portion 122 of the second primary assembling piece 120, respectively.
  • the second convex hull 162 can also be a solid structure.
  • FIG. 4 is an exploded perspective view of the back frame 100 shown in FIG. 2 at the joint portion 130.
  • the positioning point 140 is disposed around the convex hull structure 160.
  • the positioning point 140 includes four positioning points 141, 143, 144, 145 on the second primary assembling piece 120 and the first primary assembling piece 110.
  • a plurality of positioning points 142 including a plurality of sets of positioning points 142a, 142b, ..., 142n corresponding to different size back frames 100.
  • the number of the positioning points on the second primary assembling piece 120 may be changed according to the requirements of the setting, and is not limited to the four described in the embodiment.
  • the size of the back frame 100 of the present embodiment can realize not only one-dimensional adjustment in the length or width direction but also two-dimensional in the length and width directions.
  • Direction adjustment Specifically, when forming the back frame 100 of the required size, the auxiliary bracket 150 is removed, and the positioning points 141 on the second primary assembling piece 120 and the plurality of sets of positioning points 142a, 142b on the first primary assembling piece 110, In the embodiment, it is preferable to take the position 141 as the positioning reference standard. After the positioning point 141 corresponds to the positioning point 142a, the positioning points 143, 144, and 145 correspond to the first primary assembling piece 110. Points on other locations above. In other embodiments, one or any combination of anchor points 143, 144, 145 may also be selected as the positioning reference standard.
  • the adjustment process is as follows:
  • the first primary assembling piece 110 (the direction of the arrow shown in FIG. 5) is pulled along the length direction of the back frame 100.
  • the first convex hull 161 and The position of the second convex hull 162 is changed (shown in FIG. 6), and then the positioning point 141 is corresponding to the positioning point 142a, and the positioning points 143, 144, 145 are correspondingly corresponding to the other positions on the first primary assembling piece 110.
  • the length of the back frame 100 is increased.
  • the first primary assembling piece 110 (the direction of the arrow shown in FIG. 7) is simultaneously pulled along the length direction and the width direction of the back frame 100.
  • the positions of the first convex hull 161 and the second convex hull 162 also change (not shown), and then the positioning point 141 is corresponding to the positioning points 142b and 142n, and the positioning points 143, 144, 145 correspond to the corresponding first main splicing.
  • the points at other locations on the member 110 are fixedly connected, and the length and width of the back frame 100 are increased.
  • the positioning point 140 may be a riveting positioning hole, a screw locking hole, a non-hole riveting point or a welding point.
  • Fig. 8 is a schematic exploded view showing the back frame of the second embodiment of the present invention.
  • the back frame 200 includes two first primary assembling pieces 210 and 220, two second primary assembling pieces 230 and 240, a splice portion 250, and two auxiliary assembling pieces 270.
  • the present embodiment is different from the first embodiment in that the first primary assembling pieces 210 and 220 and the second primary assembling pieces 230 and 240 are respectively elongated structures, and the outer frame of the back frame 200 is formed in a splicing manner. Specifically, the first primary assembling pieces 210 and 220 are arranged in parallel, and the second primary assembling pieces 230 and 240 are arranged in parallel. The two ends of the first primary assembling piece 210 pass through the jointing portion 250 and the second primary assembling piece 230, respectively. One end of the first main assembling piece 220 is vertically and fixedly connected to the other end of the second main assembling pieces 230 and 240 through the joint portion 250, respectively.
  • the two ends of the auxiliary assembling piece 270 are respectively connected with the first primary assembling pieces 210 and 220, and the auxiliary assembling piece 270 is parallel with the second primary assembling pieces 230 and 240, thereby forming a structural schematic view of the back frame 200 as shown in FIG.
  • the positioning point 260, the auxiliary bracket 270, and the convex hull structure 280 are the same as the structure and working principle of the positioning point 140, the auxiliary bracket 150, and the convex hull structure 160 of the first embodiment, respectively.
  • the back frame 200 of the embodiment can be adjusted in different dimensions in the one-dimensional or two-dimensional direction by the corresponding cooperation of the positioning points 260 disposed on the four splicing portions 250.
  • the back frame 100 according to the first embodiment can pass the back frame 100.
  • the corresponding mating of the positioning points 140 on the two splices 130 enables adjustment of different sizes in one or two dimensions.
  • those skilled in the art can completely exchange or change the number of positioning points on the splicing portion and the settings of various primary splicing pieces without any creative work, and only need to make the main splicing
  • the parts are fixedly connected by positioning points at different positions, so that the back frame can be adjusted between different sizes, especially the back frame of similar size, for example, the back frame of 37-39, 46-48 size can realize the present
  • the object of the invention is not limited to the embodiment shown in Figures 1-9.
  • the present invention also provides a liquid crystal display device comprising the back frame 100 of the first embodiment described above or the back frame 200 of the second embodiment.
  • the present invention forms a back frame by using a main splicing piece in a splicing manner, and a plurality of positioning points at different positions are arranged on the main splicing piece, and the main point developed by using the same dies can be realized by fixedly connecting the positioning points at different positions.
  • the splicing pieces are used to form back frames of different sizes, especially the back frames of similar sizes, thereby saving mold costs, reducing production costs, and shortening the product development cycle.

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  • General Physics & Mathematics (AREA)
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Description

一种背框和液晶显示装置
【技术领域】
本发明涉及显示技术领域，具体而言涉及一种背框和液晶显示装置。
【背景技术】
液晶显示装置包括液晶面板和背光模组，背光模组底部具有背框，用于与前框配合实现液晶面板和背光模组的固定。现有技术中的背框一般为整体式背框，即使用金属冲压或塑料注射方式整体成型的背框，这使得液晶显示装置的材料成本较高。同时，对于大尺寸的背框，由于需使用较大的冲压设备，成本更高，且对应的模具尺寸很大，结构复杂，导致生产成本进一步增高。另外，对于不同尺寸的背框，需使用对应不同尺寸的模具，成本高且产品开发周期较长。
综上所述，有必要提供一种背框和液晶显示装置，以解决上述问题。
【发明内容】
本发明主要解决的技术问题是提供一种背框和液晶显示装置，能够利用同一模具开发的拼接件来形成不同尺寸的背框，节省模具费用，降低生产成本。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种背框，其包括至少两个主拼接件，相邻的主拼接件之间通过拼接部固定连接，且在每一拼接部的不同位置处设置有多个定位点，通过选定不同的定位点固定连接相邻的主拼接件，使得至少两个主拼接件以拼接方式连接形成不同尺寸的背框；其中，多个定位点为铆接定位孔、螺丝锁附孔、无孔铆接点或焊接点，主拼接件的拼接部还设置有凸包结构，多个定位点围绕凸包结构设置。
其中，凸包结构分别包括设置于两相邻主拼接件的拼接部的第一凸包和第二凸包，第二凸包容置于第一凸包所限定的空间内。
其中，背框包括第一主拼接件和第二主拼接件，第一主拼接件包括第一主体部和自第一主体部的一端垂直延伸的第一延伸部，第二主拼接件包括第二主体部和自第二主体部的一端垂直延伸的第二延伸部，第一延伸部与第二主体部、第二延伸部与第一主体部分别通过定位点固定连接，形成背框。
其中，背框包括平行间隔设置的两个第一主拼接件和平行间隔设置的两个第二主拼接件，第一主拼接件与第二主拼接件分别通过定位点首尾固定连接，形成背框。
为解决上述技术问题，本发明采用的另一个技术方案是：提供一种背框，其包括至少两个主拼接件，相邻的主拼接件之间通过拼接部固定连接，且在每一拼接部的不同位置处设置有多个定位点，通过选定不同的定位点固定连接相邻的主拼接件，使得至少两个主拼接件以拼接方式连接形成不同尺寸的背框。
其中，多个定位点为铆接定位孔、螺丝锁附孔、无孔铆接点或焊接点。
其中，背框包括第一主拼接件和第二主拼接件，第一主拼接件包括第一主体部和自第一主体部的一端垂直延伸的第一延伸部，第二主拼接件包括第二主体部和自第二主体部的一端垂直延伸的第二延伸部，第一延伸部与第二主体部、第二延伸部与第一主体部分别通过定位点固定连接，形成背框。
其中，第一主体部和第二主体部之间还设置有多个辅助支架，辅助支架的两端分别与第一主体部和第二主体部固定连接。
其中，背框包括平行间隔设置的两个第一主拼接件和平行间隔设置的两个第二主拼接件，第一主拼接件与第二主拼接件分别通过定位点首尾固定连接，形成背框。
其中，两个第一拼接件之间还设置有多个辅助支架，辅助支架的两端分别与第一拼接件固定连接。
其中，主拼接件的拼接部还设置有凸包结构，多个定位点围绕凸包结构设置。
其中，凸包结构分别包括设置于两相邻主拼接件的拼接部的第一凸包和第二凸包，第二凸包容置于第一凸包所限定的空间内。
其中，凸包结构与主拼接件一体挤压成型。
为解决上述技术问题，本发明采用的又一个技术方案是：提供一种液晶显示装置，其包括一背框，该背框包括至少两个主拼接件，相邻的主拼接件之间通过拼接部固定连接，且在每一拼接部的不同位置处设置有多个定位点，通过选定不同的定位点固定连接相邻的主拼接件，使得至少两个主拼接件以拼接方式连接形成不同尺寸的背框。
其中，多个定位点为铆接定位孔、螺丝锁附孔、无孔铆接点或焊接点。
其中，背框包括第一主拼接件和第二主拼接件，第一主拼接件包括第一主体部和自第一主体部的一端垂直延伸的第一延伸部，第二主拼接件包括第二主体部和自第二主体部的一端垂直延伸的第二延伸部，第一延伸部与第二主体部、第二延伸部与第一主体部分别通过定位点固定连接，形成背框。
其中，背框包括平行间隔设置的两个第一主拼接件和平行间隔设置的两个第二主拼接件，第一主拼接件与第二主拼接件分别通过定位点首尾固定连接，形成背框。
其中，主拼接件的拼接部还设置有凸包结构，多个定位点围绕凸包结构设置。
本发明的有益效果是：本发明通过采用主拼接件以拼接方式形成背框，且主拼接件上设置有多个不同位置的定位点，通过固定连接不同位置的定位点可实现利用同一模具开发的主拼接件来形成不同尺寸的背框，尤其是尺寸相近的背框，从而能够节省模具费用，降低生产成本，同时缩短产品的开发周期。
【附图说明】
图1是本发明第一实施例的背框的结构分解示意图；
图2是本发明第一实施例的背框的结构示意图；
图3是图2所示的背框在拼接部的局部剖视图；
图4是图2所示的背框在拼接部的分解示意图；
图5是图2所示的背框在一维方向的尺寸调节局部示意图；
图6是图2所示的背框在一维方向调节后的局部剖视图；
图7是图2所示的背框在二维方向的尺寸调节示意图；
图8是本发明第二实施例的背框的结构分解示意图；
图9是本发明第二实施例的背框的结构示意图。
【具体实施方式】
下面结合附图和实施例对本发明进行详细说明。
图1是本发明第一实施例的背框的结构分解示意图。如图1所示，背框100包括：第一主拼接件110、第二主拼接件120以及两个辅助支架150。
其中，第一主拼接件110和第二主拼接件120分别呈“L”型，并通过拼接部130以拼接方式形成背框100的外框架。
具体来说，第一主拼接件110包括第一主体部111和自第一主体部111的一端垂直延伸的第一延伸部112，第二主拼接件120包括第二主体部121和自第二主体部121的一端垂直延伸的第二延伸部122。第一主体部111与第二延伸部122、第二主体部121与第一延伸部112分别通过拼接部130上的多个定位点140实现固定连接，从而形成如图2所示的背框100的外框架。
参阅图2所示，辅助支架150的两端分别与第一主体部111和第二主体部121连接，辅助支架150与第一延伸部112和第二延伸部122平行。在本实施例中，辅助支架150主要用以增加背框100的结构强度以及保持背框100的结构稳定，可以根据需要设置一个或多个，并不仅限于本实施例所述的两个。
在本实施例中，为增加背框100在拼接部130处的固定连接强度，第一主拼接件110和第二主拼接件120分别在拼接部130上还设置有凸包结构160。其中，凸包结构160与第一主拼接件110和第二主拼接件120一体挤压成型。图3是图2所示的背框100在拼接部130的局部剖视图。参阅图2和图3，凸包结构160包括第一凸包161和第二凸包162，第一凸包161设置于第二主体部121和第一主体部111的拼接部130上，第二凸包162设置于第一延伸部112和第二延伸部122的拼接部130上，第二凸包162容置于第一凸包161所限定的空间内，并且可随着背框100尺寸的调节进行滑动。其中，第一凸包161的顶壁和第二凸包162的顶壁紧密相邻。
在本实施例中，为防止背框100在组装为液晶显示装置时，因导光板和液晶面板的重压而导致凸包结构160发生形变，第二凸包162的底部还设置有支撑结构163，支撑结构163在凸包结构160冲压成型后，分别组装于第一主拼接件110的第一延伸部112上和第二主拼接件120的第二延伸部122上。在其他实施例中，第二凸包162也可以为实体结构。
图4是图2所示的背框100在拼接部130的分解示意图。如图4所示，定位点140围绕凸包结构160设置，定位点140包括位于第二主拼接件120上的四个定位点141、143、144、145和位于第一主拼接件110上的多个定位点142，定位点142包括对应不同尺寸背框100的多组定位点142a、142b、…、142n。其中，根据设置的需求，第二主拼接件120上定位点的数量可以改变，并不仅限于本实施例所述的4个。
根据多组定位点142a、142b、…、142n的矩阵式分布，本实施例的背框100的尺寸不仅可以实现在长度或宽度方向的一维方向调节，而且能够实现长度和宽度方向的二维方向调节。具体而言，在形成需要尺寸的背框100时，取下辅助支架150，将位于第二主拼接件120上的定位点141与第一主拼接件110上的多组定位点142a、142b、…、142n对应，需要说明的是，本实施例优选取位点141作为定位参照标准，定位点141与定位点142a对应后，定位点143、144、145则相应的对应第一主拼接件110上的其它位置的点。在其它实施例中，也可以选取定位点143、144、145其中之一或任意组合作为定位参照标准。
调节过程如下：
一维方向调节，需要形成定位点142a对应尺寸的背框100时，沿背框100的长度方向拉动第一主拼接件110（图5所示箭头方向），此时，第一凸包161和第二凸包162的位置发生变化（图6所示），然后将定位点141与定位点142a对应，定位点143、144、145则相应的对应第一主拼接件110上的其它位置的点，固定连接，背框100的长度增加。
二维方向调节，需要形成定位点142b和142n对应尺寸的背框100时，沿背框100的长度方向和宽度方向同时拉动第一主拼接件110（图7所示箭头方向），此时，第一凸包161和第二凸包162的位置也发生变化（图未视），然后将定位点141与定位点142b和142n对应，定位点143、144、145则相应的对应第一主拼接件110上的其它位置的点，固定连接，背框100的长度和宽度均增加。其中，根据固定连接方式不同，定位点140可以为铆接定位孔、螺丝锁附孔、无孔铆接点或焊接点。
进一步地，定位点140固定连接后，再将辅助支架150固定连接于第一主拼接件110和第二主拼接件120上。需要说明的是，辅助支架150的两端也具有类似于定位点140的固定连接装置。图8是本发明第二实施例的背框的分解结构示意图。在本实施例中，背框200包括：两个第一主拼接件210和220、两个第二主拼接件230和240、拼接部250以及两个辅助拼接件270。
本实施例与第一实施例的不同之处在于，第一主拼接件210和220以及第二主拼接件230和240分别为长条形结构，并以拼接方式形成背框200的外框架。具体来说，第一主拼接件210和220平行间隔设置，第二主拼接件230和240平行间隔设置，第一主拼接件210的两端分别通过拼接部250与第二主拼接件230和240的一端垂直固定连接，第一主拼接件220的两端分别通过拼接部250与第二主拼接件230和240的另一端垂直固定连接。辅助拼接件270的两端分别与第一主拼接件210和220连接，辅助拼接件270与第二主拼接件230和240平行，从而形成如图9所示的背框200的结构示意图。
其中，定位点260、辅助支架270以及凸包结构280分别与第一实施例的定位点140、辅助支架150以及凸包结构160的结构以及工作原理相同。
本实施例的背框200可以通过设置于四个拼接部250上的定位点260的对应配合，实现一维或二维方向上不同尺寸的调节，第一实施例所述的背框100能通过两个拼接部130上的定位点140的对应配合，实现一维或二维方向上不同尺寸的调节。
在其他实施例中，本领域技术人员完全可以在不付出创造性劳动的前提下对拼接部上定位点的数量、位置以及各种主拼接件的设置进行互换或其他变化，只需使得主拼接件之间通过不同位置的定位点固定连接，进而使得背框可在不同尺寸之间进行调节，尤其是尺寸相近的背框，例如37-39、46-48尺寸的背框，即可实现本发明之目的，并不局限于图1-图9所示的实施例。
本发明还提供了一种液晶显示装置，其包括上述第一实施例的背框100或第二实施例的背框200。
综上所述，本发明通过采用主拼接件以拼接方式形成背框，且主拼接件上设置有多个不同位置的定位点，通过固定连接不同位置的定位点可实现利用同一模具开发的主拼接件来形成不同尺寸的背框，尤其是尺寸相近的背框，从而能够节省模具费用，降低生产成本，同时缩短产品的开发周期。
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (18)

  1. 一种背框，其中，所述背框包括至少两个主拼接件，相邻的所述主拼接件之间通过拼接部固定连接，且在每一所述拼接部的不同位置处设置有多个定位点，通过选定不同的所述定位点固定连接相邻的所述主拼接件，使得至少两个所述主拼接件以拼接方式连接形成不同尺寸的所述背框；其中，所述多个定位点为铆接定位孔、螺丝锁附孔、无孔铆接点或焊接点，所述主拼接件的所述拼接部还设置有凸包结构，所述多个定位点围绕所述凸包结构设置。
  2. 根据权利要求1所述的背框，其中，所述凸包结构包括分别设置于两相邻所述主拼接件的所述拼接部的第一凸包和第二凸包，所述第二凸包容置于所述第一凸包所限定的空间内。
  3. 根据权利要求1所述的背框，其中，所述背框包括第一主拼接件和第二主拼接件，所述第一主拼接件包括第一主体部和自所述第一主体部的一端垂直延伸的第一延伸部，所述第二主拼接件包括第二主体部和自所述第二主体部的一端垂直延伸的第二延伸部；其中，所述第一延伸部与所述第二主体部、所述第二延伸部与所述第一主体部分别通过所述定位点固定连接，形成所述背框。
  4. 根据权利要求1所述的背框，其中，所述背框包括平行间隔设置的两个第一主拼接件和平行间隔设置的两个第二主拼接件；其中，所述第一主拼接件与所述第二主拼接件分别通过所述定位点首尾固定连接，形成所述背框。
  5. 一种背框，其中，所述背框包括至少两个主拼接件，相邻的所述主拼接件之间通过拼接部固定连接，且在每一所述拼接部的不同位置处设置有多个定位点，通过选定不同的所述定位点固定连接相邻的所述主拼接件，使得至少两个所述主拼接件以拼接方式连接形成不同尺寸的所述背框。
  6. 根据权利要求5所述的背框，其中，所述多个定位点为铆接定位孔、螺丝锁附孔、无孔铆接点或焊接点。
  7. 根据权利要求5所述的背框，其中，所述背框包括第一主拼接件和第二主拼接件，所述第一主拼接件包括第一主体部和自所述第一主体部的一端垂直延伸的第一延伸部，所述第二主拼接件包括第二主体部和自所述第二主体部的一端垂直延伸的第二延伸部；其中，所述第一延伸部与所述第二主体部、所述第二延伸部与所述第一主体部分别通过所述定位点固定连接，形成所述背框。
  8. 根据权利要求7所述的背框，其中，所述第一主体部和第二主体部之间还设置有多个辅助支架，所述辅助支架的两端分别与所述第一主体部和第二主体部固定连接。
  9. 根据权利要求5所述的背框，其中，所述背框包括平行间隔设置的两个第一主拼接件和平行间隔设置的两个第二主拼接件；其中，所述第一主拼接件与所述第二主拼接件分别通过所述定位点首尾固定连接，形成所述背框。
  10. 根据权利要求9所述的背框，其中，所述两个第一拼接件之间还设置有多个辅助支架，所述辅助支架的两端分别与所述第一拼接件固定连接。
  11. 根据权利要求5所述的背框，其中，所述主拼接件的所述拼接部还设置有凸包结构，所述多个定位点围绕所述凸包结构设置。
  12. 根据权利要求11所述的背框，其中，所述凸包结构包括分别设置于两相邻所述主拼接件的所述拼接部的第一凸包和第二凸包，所述第二凸包容置于所述第一凸包所限定的空间内。
  13. 根据权利要求11所述的背框，其中，所述凸包结构与所述主拼接件一体挤压成型。
  14. 一种液晶显示装置，其中，所述液晶显示装置包括一背框，所述背框包括至少两个主拼接件，相邻的所述主拼接件之间通过拼接部固定连接，且在每一所述拼接部的不同位置处设置有多个定位点，通过选定不同的所述定位点固定连接相邻的所述主拼接件，使得至少两个所述主拼接件以拼接方式连接形成不同尺寸的所述背框。
  15. 根据权利要求14所述的液晶显示装置，其中，所述多个定位点为铆接定位孔、螺丝锁附孔、无孔铆接点或焊接点。
  16. 根据权利要求14所述的液晶显示装置，其中，所述背框包括第一主拼接件和第二主拼接件，所述第一主拼接件包括第一主体部和自所述第一主体部的一端垂直延伸的第一延伸部，所述第二主拼接件包括第二主体部和自所述第二主体部的一端垂直延伸的第二延伸部；其中，所述第一延伸部与所述第二主体部、所述第二延伸部与所述第一主体部分别通过所述定位点固定连接，形成所述背框。
  17. 根据权利要求14所述的液晶显示装置，其中，所述背框包括平行间隔设置的两个第一主拼接件和平行间隔设置的两个第二主拼接件；其中，所述第一主拼接件与所述第二主拼接件分别通过所述定位点首尾固定连接，形成所述背框。
  18. 根据权利要求14所述的液晶显示装置，其中，所述主拼接件的所述拼接部还设置有凸包结构，所述多个定位点围绕所述凸包结构设置。
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