WO2013071615A1 - 背框、背框的制造方法以及背光*** - Google Patents

背框、背框的制造方法以及背光*** Download PDF

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Publication number
WO2013071615A1
WO2013071615A1 PCT/CN2011/082800 CN2011082800W WO2013071615A1 WO 2013071615 A1 WO2013071615 A1 WO 2013071615A1 CN 2011082800 W CN2011082800 W CN 2011082800W WO 2013071615 A1 WO2013071615 A1 WO 2013071615A1
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WO
WIPO (PCT)
Prior art keywords
assembling piece
primary
back frame
primary assembling
splicing
Prior art date
Application number
PCT/CN2011/082800
Other languages
English (en)
French (fr)
Inventor
郭仪正
萧宇均
黄冲
程加河
阙成文
李全
Original Assignee
深圳市华星光电技术有限公司
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
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Application filed by 深圳市华星光电技术有限公司 filed Critical 深圳市华星光电技术有限公司
Priority to US13/380,823 priority Critical patent/US8777475B2/en
Publication of WO2013071615A1 publication Critical patent/WO2013071615A1/zh

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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
    • G02F1/133308—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
    • G02F1/1335—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 present invention relates to the field of display technologies, and in particular, to a back frame of a flat panel display device, a method of manufacturing the back frame, and a backlight system.
  • the liquid crystal display device of the prior art includes a front frame, a panel, and a backlight module.
  • the backlight module includes a back frame, a reflective sheet, a light guide plate, a light group, and the like.
  • the size of the liquid crystal panel includes 31.5, 42, 46, 48 or 55 inches, and it is necessary to set different back frame molds according to liquid crystal panels of different sizes.
  • FIG. 1 is a schematic structural diagram of a back frame of a liquid crystal display device in the prior art.
  • the back frame 10 adopts an integral back frame, and the integral back frame 10 is usually produced by metal stamping or plastic injection.
  • the integral back frame 10 needs to consume too much material. The material cost is high.
  • the large-sized back frame 10 needs to use a large punching device, and the corresponding frame of the back frame 10 has a large size, a complicated structure, and a high cost of the back frame mold. Therefore, the back frame of the prior art is costly.
  • the technical problem to be solved by the present invention is to provide a back frame, a manufacturing method of the back frame, and a backlight system, which can reduce material cost and mold cost, and facilitate heat dissipation of the light source.
  • a technical solution adopted by the present invention is to provide a back frame of a flat panel display device, the back frame includes at least two primary assembling pieces, and at least two primary assembling pieces are connected in a splicing manner; at least two The main splicing piece includes a main splicing piece for carrying the light source, and the main splicing piece for carrying the light source is provided with a heat dissipating fin set.
  • the heat dissipation fin group is disposed on a side of the primary assembling component for carrying the light source, and the extending direction of the heat dissipation fin group is parallel to a plane of the back frame.
  • the extending direction is toward the inner side or the outer side of the back frame.
  • the heat dissipation fin group is disposed on a side of the primary assembling piece for carrying the light source, and the extending direction of the heat dissipation fin group is perpendicular to a plane of the back frame.
  • the heat dissipating fin set is detachably fixed to the main assembling piece for carrying the light source or integrally formed with the main assembling piece.
  • the back frame comprises a heat dissipating aluminum extrusion between the light source and its main splicing piece.
  • the at least two primary assembling pieces comprise a first primary assembling piece and a second primary assembling piece which are mutually spliced, wherein one end surface of the first primary assembling piece is provided with at least two spaced apart along the length direction of the first primary assembling piece.
  • the first assembling piece is spliced with one end of the corresponding second primary assembling piece through a joint portion thereof to form a main frame of the back frame of different sizes.
  • the splicing portion is a recess provided on a surface of the first main splicing piece and adapted to an end of the second main splicing piece to receive one end of the second main splicing piece.
  • the bottom of the concave portion of the first primary assembling piece is provided with a first through hole
  • the corresponding position of the second primary assembling piece is provided with a second through hole
  • the back frame includes a fixing member
  • the fixing member passes through the first through hole and the second through hole The hole is used to splicing the first primary assembling piece and the second primary assembling piece.
  • the joint portion is a concave portion provided on the surface of the first primary assembling piece, and one end surface of the second primary assembling piece is provided with at least two protrusions arranged along the length direction of the second primary assembling piece, one of the protrusions
  • the recess is embedded to splicing the first primary assembling piece and the second primary assembling piece.
  • the back frame includes a third primary assembling piece and a fourth primary assembling piece; the first primary assembling piece, the second primary assembling piece, the third primary assembling piece and the fourth primary assembling piece are all straight and end to end Stitching to surround the rectangular main frame forming the back frame.
  • the back frame includes a secondary assembling piece disposed in the main frame, and the auxiliary assembling piece is spliced with the main frame.
  • the auxiliary splicing component includes a first auxiliary splicing component and a second secondary splicing component, and the two ends of the first secondary splicing component are respectively combined with the first primary splicing component, the second primary splicing component, the third primary splicing component, and the fourth primary splicing At least two primary assembling pieces are spliced in the piece, and two ends of the second auxiliary assembling piece are respectively combined with at least two of the first primary assembling piece, the second primary assembling piece, the third primary assembling piece and the fourth primary assembling piece Splicing pieces are spliced.
  • the two ends of the first auxiliary splicing piece are respectively spliced with the first primary splicing piece and the second main splicing piece disposed adjacently, and the two ends of the second auxiliary splicing piece are adjacent to the third main splicing piece and the fourth
  • the main splicing piece is spliced; or the two ends of the first auxiliary splicing piece are respectively spliced with the first main splicing piece and the third main splicing piece, and the two ends of the second auxiliary splicing piece are oppositely disposed with the first main splicing piece,
  • the third primary assembling piece is spliced, and the second primary assembling piece, the fourth primary assembling piece, the first auxiliary assembling piece and the second auxiliary assembling piece are arranged in parallel.
  • the back frame includes at least one bracket, and is detachably fixed to one of the first primary assembling piece, the second primary assembling piece, the third primary assembling piece, the fourth primary assembling piece, the first auxiliary assembling piece, and the second auxiliary assembling piece.
  • the bracket is provided with a convex hull.
  • a technical solution adopted by the present invention is to provide a method for manufacturing a back frame of a flat panel display device, comprising: fabricating at least two primary assembling pieces of the back frame, and at least two primary assembling pieces are included
  • the main splicing piece for carrying the light source, the main splicing piece for carrying the light source is provided with a heat dissipating fin group; and at least two main splicing pieces are spliced.
  • the step of making at least two primary assembling pieces of the back frame includes: fabricating at least first and second primary assembling pieces, wherein one end of the first primary assembling piece is provided with at least two joints, each of the joints The structure is matched with one end of the corresponding second primary assembling piece; the step of splicing the at least two primary assembling pieces comprises: selecting a joint of at least two joints according to the size of the back frame and the corresponding second primary assembling piece One end is spliced.
  • a stitching portion of the at least two stitching portions and the corresponding number are selected according to the size of the back frame Before or after the step of splicing one end of the two primary assembling pieces, the other splicing portions of the first primary assembling piece located outside the splicing position of the second primary splicing piece are cut off.
  • a technical solution adopted by the present invention is to provide a backlight system including a light source, a light homogenizing mechanism, and a back frame; the back frame carries a light source and a light homogenizing mechanism, and the back frame is the above-mentioned back frame.
  • the beneficial effects of the present invention are: different from the prior art, the back frame of the present invention, the manufacturing method of the back frame, and the backlight system are connected by splicing at least two primary assembling pieces by providing a minimum of two primary assembling pieces. At least two primary assembling pieces are used for carrying the light source, and the main assembling piece carrying the light source is provided with a heat dissipating fin set.
  • the mold structure of the back frame can be simplified, the cost of the back frame mold can be reduced, and the material of the back frame can be saved, thereby reducing the production cost of the flat panel display device, and at the same time, facilitating heat dissipation of the light source.
  • FIG. 1 is a schematic structural view of a back frame of a liquid crystal display device in the prior art
  • FIG. 2 is a schematic structural view of a flat panel display device according to a first embodiment of the present invention
  • FIG. 3 is a schematic structural view of a back frame of a flat panel display device according to a second embodiment of the present invention.
  • FIG. 4 is a schematic structural view of a back frame of a flat panel display device according to a third embodiment of the present invention.
  • FIG. 5 is a schematic structural view of a back frame of a flat panel display device according to a fourth embodiment of the present invention.
  • FIG. 6 is a schematic structural view of a splicing manner in a flat panel display device according to a fifth embodiment of the present invention.
  • FIG. 7 is a schematic view showing a diagonal arrangement of a first auxiliary assembling piece on a main frame in a flat panel display device according to a sixth embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a first auxiliary assembling piece and a second auxiliary assembling piece on a main frame in a flat panel display device according to a seventh embodiment of the present invention.
  • FIG. 9 is a schematic structural view of a joint portion of a back frame of a flat panel display device according to an eighth embodiment of the present invention.
  • Figure 10 is a schematic cross-sectional view showing the first embodiment of the joint portion of Figure 9;
  • FIG. 11 is a schematic view showing a splicing manner of a splicing portion of a back frame of a flat panel display device according to a ninth embodiment of the present invention.
  • FIG. 12 is a schematic view showing a splicing manner of a splicing portion of a back frame of a flat panel display device according to a tenth embodiment of the present invention.
  • FIG. 13 is a schematic view showing a splicing manner of a splicing portion of a back frame of a flat panel display device according to an eleventh embodiment of the present invention.
  • FIG. 14 is a schematic structural view of a joint portion of a back frame of a flat panel display device according to a twelfth embodiment of the present invention.
  • FIG. 15 is a schematic structural view of a joint portion of a back frame of a flat panel display device according to a thirteenth embodiment of the present invention.
  • 16 is a flow chart showing a method of manufacturing a back frame of a flat panel display device according to a fourteenth embodiment of the present invention.
  • FIG. 17 is a schematic structural diagram of a flat panel display device with a touch screen according to a fifteenth embodiment of the present invention.
  • FIG. 18 is a schematic structural diagram of a stereoscopic display device according to a sixteenth embodiment of the present invention.
  • Figure 19 is a schematic structural view of a plasma display device according to a seventeenth embodiment of the present invention.
  • FIG. 20 is an exploded perspective view of a light source and a heat dissipation fin of a flat panel display device according to an eighteenth embodiment of the present invention.
  • 21 is an exploded perspective view showing a light source and a heat dissipation fin of a flat panel display device according to a nineteenth embodiment of the present invention.
  • FIG. 22 is a schematic view showing the assembly of a light source and a heat dissipation fin of a flat panel display device according to a twentieth embodiment of the present invention.
  • FIG. 23 is a perspective view of the first embodiment of the heat dissipation fin of FIG. 21;
  • Figure 24 is a perspective view showing the second embodiment of the heat dissipation fin of Figure 21;
  • FIG. 2 is a schematic structural diagram of a flat panel display device according to a first embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a first embodiment of a back frame of a flat panel display device according to a second embodiment of the present invention.
  • the flat panel display device 20 of the present embodiment includes a backlight system 21 and a display panel 22 .
  • the backlight system 21 is disposed on the back surface of the display panel 22 and provides a light source for the display panel 22 .
  • the backlight system 21 includes a light source 25, a light homogenizing mechanism 24, and a back frame 23.
  • the back frame 23 carries the light source 25 and the light homogenizing mechanism 24.
  • the light homogenizing mechanism 24 is a light guide plate; when the backlight system 21 is of a direct type, the light homogenizing mechanism 24 is a diffusing plate.
  • the back frame 23 includes at least a first primary assembling piece and a second primary assembling piece, and at least the first and second primary assembling pieces form the main frame 27 of the back frame 23.
  • the first embodiment of the back frame 23 includes a first primary splice 261 and a second primary splice 262.
  • One end of the first primary assembling piece 261 is spliced with one end of the second primary assembling piece 262, and the other end of the first primary assembling piece 261 is spliced with the other end of the second primary assembling piece 262 to form the main frame 27 of the back frame 23.
  • the first primary splicing member 261 and the second primary splicing member 262 are both aluminum or galvanized steel.
  • the first primary assembling piece 261 and the second primary assembling piece 262 are L-shaped.
  • the second embodiment of the back frame 23 includes a first primary splicing member 281, a second primary splicing member 282, and a third primary splicing member 283.
  • the three primary assembling pieces 281, 282, and 283 are joined to form the main frame 27 of the back frame 23.
  • the three primary splices 281, 282, and 283 are either aluminum or galvanized steel.
  • the first primary assembling piece 281 is L-shaped, and the second and third assembling pieces 282, 283 are all straight.
  • the back frame 23 may further include a secondary splicing piece disposed in the splicing frame 27 and spliced thereto.
  • the back frame 23 of the flat panel display device 20 of the present invention will be described in detail below with four primary splicing members and two secondary splicing members.
  • FIG. 5 is a schematic structural diagram of a back frame of a flat panel display device according to a fourth embodiment of the present invention.
  • the back frame 23 includes: a first primary assembling piece 231, a second primary assembling piece 232, a third primary assembling piece 233, a fourth primary assembling piece 234, and a first auxiliary assembling piece 235.
  • the first primary assembling piece 231, the second primary assembling piece 232, the third primary assembling piece 233, and the fourth primary assembling piece 234 are formed into a rectangular main frame 27 of the back frame 23 by end-to-end stitching.
  • the first auxiliary splicing piece 235 and the second auxiliary splicing piece 236 are provided as auxiliary splicing pieces, are disposed in the main frame 27, and are spliced with the main frame 27.
  • first primary assembling piece 231 is spliced with one end of the second primary assembling piece 232, and the other end of the second primary assembling piece 232 is spliced with one end of the third primary assembling piece 233, and the third primary assembling piece 233 is The other end is spliced with one end of the fourth primary assembling piece 234, and the other end of the fourth primary assembling piece 234 is spliced with the other end of the first primary assembling piece 231 to form a rectangular main frame 27.
  • the first primary assembling piece 231, the second primary assembling piece 232, the third primary assembling piece 233 and the fourth primary assembling piece 234 are all aluminum parts or galvanized steel pieces.
  • the first primary assembling piece 231, the second primary assembling piece 232, the third primary assembling piece 233, and the fourth primary assembling piece 234 are all straight strips.
  • the first primary assembling piece 231, the second primary assembling piece 232, the third primary assembling piece 233, and the fourth primary assembling piece 234 may all be disposed in an L shape, or partially disposed in a straight strip shape, and the remaining ones are disposed in an L shape.
  • the first primary assembling piece 261 and the second primary assembling piece 262 are all disposed in an L shape; in FIG. 4, the first primary assembling piece 281 is disposed in an L shape, and the second and third primary assembling pieces 282 are provided.
  • And 283 is set to a straight strip.
  • the back frame 23 of the flat panel display device 20 is spliced and fixed by using a splicing connection.
  • one end of the first primary assembling piece 231 and one end of the second primary assembling piece 232 are spliced and connected, and one end of the second primary assembling piece 232 is spliced on one end of the first primary assembling piece 231 .
  • one end of the second primary assembling piece 232 is spliced on one end of the first primary assembling piece 231 by means of screwing, fastening or welding.
  • the first auxiliary assembling piece 235 and the second auxiliary assembling piece 236 are disposed in the main frame 27 of the back frame 23 .
  • One end of the first auxiliary assembling piece 235 is spliced with the first primary assembling piece 231
  • the other end of the first auxiliary assembling piece 235 is spliced with the third primary assembling piece 233
  • the other end of the second auxiliary assembling piece 236 is spliced with the third primary assembling piece 233, and between the second primary assembling piece 232, the fourth primary assembling piece 234, the first auxiliary assembling piece 235, and the second auxiliary assembling piece 236.
  • one of ordinary skill in the art provides at least one secondary splice within the main frame 27, such as only the first secondary splice 235 disposed within the main frame 27.
  • the two ends of the first auxiliary assembling piece 235 can be respectively spliced with at least two primary assembling pieces of the first primary assembling piece 231, the second primary assembling piece 232, the third primary assembling piece 233, and the fourth primary assembling piece 234.
  • the first sub-assembler 235 is diagonally disposed in the main frame 27 as shown in FIG.
  • the two ends of the second auxiliary assembling piece 236 may be respectively combined with at least two of the first primary assembling piece 231, the second primary assembling piece 232, the third primary assembling piece 233, and the fourth primary assembling piece 234.
  • Splicing pieces are spliced.
  • the two ends of the first auxiliary assembling piece 235 are respectively spliced with the adjacent first primary assembling piece 231 and the second primary assembling piece 232, and the two ends of the second auxiliary assembling piece 236 are respectively disposed adjacent to the third main assembly.
  • the splicing member 233 and the fourth main splicing member 234 are spliced, as shown in FIG.
  • the back frame 23 includes seven brackets 2371, 2372, 2373, 2374, 2375, 2376, and 2377.
  • the bracket 2371 is fixed on the fourth primary assembling piece 234, the brackets 2372 and 2373 are respectively fixed on the first auxiliary assembling piece 235, the bracket 2374 is fixed on the second auxiliary assembling piece 236, and the bracket 2375 is fixed on the second primary assembling piece.
  • the two ends of the brackets 2376 and 2377 are respectively fixed to the first auxiliary assembling piece 235 and the second auxiliary assembling piece 236.
  • the bracket may be fixed to one of the first primary assembling piece 231, the second primary assembling piece 232, the third primary assembling piece 233, the fourth primary assembling piece 234, the first auxiliary assembling piece 235, and the second auxiliary assembling piece 236. or above.
  • those skilled in the art can fully provide other numbers of brackets, such as a bracket or more, on the back frame 23.
  • the bracket can be detachably fixed to one of the first primary assembling piece 231, the second primary assembling piece 232, the third primary assembling piece 233, the fourth primary assembling piece 234, the first auxiliary assembling piece 235, and the second auxiliary assembling piece 236. or above.
  • a convex package (not shown) is disposed on the brackets 2371, 2372, 2373, 2374, 2375, 2376, and 2377, and the back frame 23 can fix the circuit board or the like through the convex package.
  • the first primary assembling piece 231 and the third primary assembling piece 233 are the same in size, the same shape, and are stamped using the same mold.
  • the second primary assembling piece 232, the fourth primary assembling piece 234, the first auxiliary assembling piece 235 and the second auxiliary assembling piece 236 have the same size and the same shape, and are stamped and produced by the same die to realize mold sharing. Therefore, the back frame 23 of the present invention can be produced by stamping using two small-sized molds.
  • the back frame 10 requires a large-sized mold, and the mold structure of the back frame 23 of the present invention is simple and small, thereby reducing The cost of the back frame 23 mold.
  • the back frame 23 of the present invention can greatly save material compared to the overall back frame of the back frame 10 in the prior art, thereby reducing the production cost of the flat panel display device 20.
  • FIG. 9 is a schematic structural diagram of a joint portion of a back frame of a flat panel display device according to an eighth embodiment of the present invention.
  • one end of the first primary assembling piece is provided with two splicing portions, and the structure of the splicing portion is matched with one end of the corresponding second main splicing portion, so that the first primary assembling piece is Stitching with one end of the corresponding second primary assembling piece.
  • first primary assembling piece 231 is provided with the splicing portions 2311, 2312, and the splicing portions 2311, 2312 are arranged along the length direction of the first primary assembling piece 231, and the splicing portions 2311, 2312 are in the first main splicing.
  • the piece 231 is provided with a recess shaped to fit one end of the second primary assembling piece 232 to receive one end of the second primary assembling piece 232.
  • the splicing portions 2311, 2312 are recesses that do not penetrate the opposite ends of the first primary splicing member 231, the concave portion has a rectangular shape, and the second primary splicing member 232 has a straight strip shape.
  • the joint portion 2311 closer to the end of the first primary assembling piece 231 is first selected, and the second primary assembling piece 232 of the corresponding width is selected. Then, one end of the second primary assembling piece 232 is placed on the concave portion of the joint portion 2311. Then, one end of the second primary assembling piece 232 is spliced and fixed on the joint portion 2311 by screwing, fastening or welding.
  • the splicing portion 2312 that is farther from the end of the first primary splicing member 231 is first selected, and the second primary splicing member 232 of the corresponding width is selected.
  • one end of the second primary assembling piece 232 is placed on the concave portion of the joint portion 2312. Then, one end of the second primary assembling piece 232 is spliced and fixed on the joint portion 2312 by screwing, fastening or welding.
  • a protrusion is disposed at a corresponding position on the surface of the second primary assembling piece 232, wherein the protrusion of the second primary assembling piece 232 is embedded in the corresponding position of the first primary assembling piece 231 to splicing the first primary assembling piece. 231 and the second primary assembling piece 232, as shown in FIG.
  • one end of the second primary assembling piece 232 may be provided with at least two protrusions spaced along the length direction of the second primary assembling piece 232, such as two, three or four or the like.
  • the concave portion of the first primary assembling piece 231 is a concave portion of a multi-step structure
  • the second primary assembling piece 232 is provided with a convex portion of a multi-step structure adapted to the concave portion, as shown in FIG.
  • the bottom of the concave portion of the first primary assembling piece 231 is provided with a first through hole 2313
  • the second primary assembling piece 232 is provided with a second position corresponding to the joint portion 2311 .
  • the back frame 23 further includes a fixing member 240.
  • the fixing member 240 passes through the first through hole 2313 and the second through hole 2321 to splicing the first primary assembling piece 231 and the second primary assembling piece 232.
  • the concavities of the splice portions 2311, 2312 of the first main assembling member 231 are circular in shape.
  • those skilled in the art can completely set the shape of the recess to other polygonal shapes such as a triangle.
  • the splice portions 2311, 2312 are recesses penetrating through opposite sides of the first main splice member 231 so that one end of the second main splice member 232 Move on the splicing portions 2311, 2312.
  • the through portion can be cut off, thereby adjusting the length of the second primary assembling piece 232 as the main frame of the back frame.
  • the other end of the first primary assembling piece 231 and the two ends of the third primary assembling piece 233 are provided with two joint portions, and the structure thereof is the same as that of the joint portions 2311, 2312. That is to say, at least two splices are provided on the first main assembling piece, which will not be repeated here.
  • the first main splicing member of the back frame 23 of the present invention is provided with at least two splicing portions, and the number of splicing portions is set according to user requirements.
  • two splicing portions 2311 and 2312 are selected. description. Therefore, when setting the mold of the back frame 23, only two sets of molds, that is, the mold of the first main assembling piece and the mold of the second main assembling piece are disposed, and a plurality of splices are arranged on the first main assembling piece to be spliced.
  • Back frame 23 of various sizes.
  • the corresponding splicing portion may be selected according to the size of the back frame 23, and the second main splicing piece is spliced on the splicing portion of the first main splicing piece through the splicing portion, and the first main splicing piece is The other splices located outside the splice location of the second primary splice are cut to obtain the back frame 23 of the desired size.
  • the invention also provides a mold for manufacturing a back frame of a flat panel display device, the mold of the back frame is provided with a main pattern of a main assembling piece for forming a back frame, and the main pattern is provided with a main body for forming at one end of the main assembling piece. a sub-pattern of at least two splices.
  • the primary splicing component is the first primary splicing component and the second primary splicing component, and corresponds to the above-mentioned main pattern; the splicing part is the splicing part of the first primary splicing component, corresponding to the above-mentioned sub-pattern, and details are not described herein again.
  • the present invention also provides a method of manufacturing a back frame of a flat panel display device, the method comprising the following steps:
  • Step 501 at least two primary assembling pieces of the back frame are formed, and at least two primary assembling pieces include a primary assembling piece for carrying a light source, and a cooling fin group is disposed on the primary assembling piece for carrying the light source;
  • step 502 at least two primary assembling pieces are spliced.
  • the step of making at least two primary assembling pieces of the back frame includes: fabricating at least first and second primary assembling pieces, wherein one end of the first primary assembling piece is provided with at least two joints, each of the joints The structure is adapted to the end of the corresponding second primary splicing member.
  • the step of splicing the at least two primary assembling pieces comprises: selecting one splicing portion of the at least two splicing portions according to the size of the back frame to splicing with one end of the corresponding second primary assembling piece.
  • a joint of at least two joints is selected according to the size of the back frame.
  • the other splicing portions of the first primary splicing member located outside the splicing position of the second primary splicing member are cut off.
  • the first primary assembling piece is the first primary assembling piece
  • the second primary assembling piece is the second primary assembling piece, which will not be described herein.
  • the flat panel display device 20 of the present invention further includes a touch screen 29 which is disposed on the light emitting surface of the display panel 22 of the flat panel display device 20.
  • the flat panel display device 20 includes a backlight system 21 and the above-described display panel 22 .
  • the backlight system 21 is disposed on the back surface of the display panel 22 and provides a light source for the display panel 22 .
  • the backlight system 21 includes a light source 25, a light homogenizing mechanism 24, and a back frame 23.
  • the back frame 23 carries the light source 25 and the light homogenizing mechanism 24.
  • the light homogenizing mechanism 24 is a light guide plate; when the backlight system 21 is of a direct type, the light homogenizing mechanism 24 is a diffusing plate.
  • the back frame 23 includes at least a first primary assembling piece and a second primary assembling piece, and at least the first and second primary assembling pieces form the main frame 27 of the back frame 23.
  • the flat panel display device 20 of the present invention may be a liquid crystal display device or a liquid crystal television set.
  • the present invention also provides a stereoscopic display device 30.
  • the stereoscopic display device 30 includes a liquid crystal lens grating 31, a backlight system 32, and a display panel 33.
  • the liquid crystal lens grating 31 is disposed on the light emitting surface of the display panel 33.
  • the backlight system 32 is the backlight system of the above embodiments, such as the backlight system 32 including the back frame 23.
  • the back frame 23 includes at least a first primary assembling piece and a second primary assembling piece, and at least the first and second primary assembling pieces form a main frame of the back frame, which will not be described herein.
  • the present invention also provides a plasma display device 40.
  • the plasma display device 40 includes a plasma display panel 41 and a back frame 42, and the back frame 42 is disposed on the back surface of the plasma display panel 41.
  • the back frame 42 is the back frame of each embodiment described above, and details are not described herein again.
  • the present invention also provides a light source heat dissipation method suitable for the above embodiments.
  • the splicing members 61, 62, 63 and 64 are the primary splicing members in the above embodiments.
  • the primary assembling piece for carrying the light source 65 The heat dissipation fin group 611 is disposed on the side of the 61, and the heat dissipation fin group 611 extends in a direction parallel to the plane of the back frame.
  • the heat dissipation fin group 611 extends toward the inner side of the back frame
  • the light source 65 is disposed on the L-type heat dissipation aluminum extrusion 66
  • the L-type heat dissipation aluminum extrusion 66 is disposed on the main assembly member 61.
  • the heat generated by the light source 65 is respectively conducted to the heat dissipation fin group 611 via the L-type heat dissipation aluminum extrusion 66 and the main assembly 61, and the heat is transferred to the air through the large heat dissipation area of the heat dissipation fin group 611.
  • the same arrangement is made on the other primary assembling piece 63 which is parallel to the primary assembling piece 61.
  • the heat dissipation fin group 611 Since the arrangement of the heat dissipation fin group 611 fully utilizes the hollow space in the back frame, the volume of the entire backlight system is not increased, and at the same time, the heat dissipation effect is enhanced.
  • the heat sink fin set extends to the outside of the back frame.
  • the light source is arranged on the L-shaped heat-dissipating aluminum, and the L-shaped heat-dissipating aluminum is extruded on the main assembling piece.
  • the heat generated by the light source is respectively transmitted to the heat dissipation fin group through the L-type heat dissipation aluminum extrusion and the main assembly piece, and the heat is transferred to the air through the large heat dissipation area of the heat dissipation fin group.
  • the primary assembling piece for carrying the light source 75 A heat dissipation fin group 711 is disposed on a side of the 71, and the heat dissipation fin group 711 extends in a direction perpendicular to a plane of the back frame and extends toward a reverse surface of the back frame.
  • the light source 75 is disposed on the L-shaped heat dissipation aluminum extrusion 76, and the L-type heat dissipation aluminum extrusion 76 is disposed on the primary assembling piece 71.
  • the heat generated by the light source 75 is respectively conducted to the heat dissipation fin group 711 via the L-type heat dissipation aluminum extrusion 76 and the main assembly 71, and heat is transferred to the air through the large heat dissipation area of the heat dissipation fin group 711.
  • the same arrangement is made on the primary assembling piece 73 parallel to the primary assembling piece 71.
  • FIG. 22 is a schematic view showing the assembly of the light source 75 and the heat dissipation fin group 711 of FIG.
  • FIG. 23 is a perspective view of the heat dissipation fin of FIG. 21, and as shown, the heat dissipation fin group 711 is integrally formed with the main assembly 71.
  • the heat dissipation fin group 811 is spliced on the primary assembling piece 81.
  • the heat dissipation fin group 811 can be separately manufactured and detachably fixed to the main assembly 81 so that the heat dissipation fin group 811 can be detached from the main assembly 81.
  • the heat dissipation fin group may extend perpendicular to the plane of the back frame and extend toward the front surface of the back frame.
  • the side of the main assembling piece for carrying the light source is provided with a heat dissipating fin set, and the extending direction of the heat dissipating fin set is perpendicular to the plane of the back frame and extends to the reverse side of the back frame.
  • the light source is arranged on the L-shaped heat-dissipating aluminum, and the L-shaped heat-dissipating aluminum is extruded on the main assembling piece.
  • the heat generated by the light source is respectively transmitted to the heat dissipation fin group through the L-type heat dissipation aluminum extrusion and the main assembly piece, and the heat is transferred to the air through the large heat dissipation area of the heat dissipation fin group.
  • the heat dissipation fin set may be detachably fixed to the main assembling piece for carrying the light source, or may be integrally formed by stamping with the main assembling piece.
  • the light source can be placed on the back frame or directly on the main splicing piece.
  • the heat dissipating fin sets are disposed on the corresponding main assembling pieces, so that the light source can be dissipated through the heat dissipating fin set, and selecting a suitable high thermal conductive material such as aluminum extrusion can further ensure the working stability of the power supply.
  • the back frame mold of the flat panel display device, the stereoscopic display device and the plasma display device of the present invention has a simple structure, reduces the cost of the back frame mold, and saves the material of the back frame to reduce the cost of the flat panel display device.

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Abstract

一种平板显示装置的背框、制造该背框的方法和包括该背框的背光***。该平板显示装置（20）的背框（23）包括以拼接形式进行连接的至少两个主拼接件（261，262，281，282，283，231，232，233，234，61，62，63，64）；至少两个主拼接件（261，262，281，282，283，231，232，233，234，61，62，63，64）中包括用于承载光源（65，75）的主拼接件（261，262，281，282，283，231，232，233，234，61，62，63，64），用于承载光源（65，75）的主拼接件（261，262，281，282，283，231，232，233，234，61，62，63，64）上设有散热鳍片组（611，711）。该平板显示装置（20）的背框（23）的模具结构简单，降低背框（23）模具的成本，并且节省背框（23）的材料，以降低平板显示装置（20）的生产成本，同时，利于光源（65，75）的散热。

Description

背框、背框的制造方法以及背光***
【技术领域】
本发明涉及显示技术领域，特别是涉及一种平板显示装置的背框、背框的制造方法以及背光***。
【背景技术】
现有技术中液晶显示装置包括前框、面板以及背光模组，其中背光模组包括背框、反射片、导光板以及灯组等。
目前，市场上有多种显示面板尺寸以满足人们的不同需求。例如在电视领域中，液晶面板的尺寸包括31.5、42、46、48或55寸，需要根据不同尺寸的液晶面板进行设置不同的背框模具。
请参见图1，图1是现有技术中液晶显示装置的背框结构示意图。如图1所示，现有技术中背框10均采用整体式的背框，通常通过金属冲压或者塑料注射方式生产整体式的背框10，整体式的背框10需要消耗过多的材料，材料成本高。此外大尺寸的背框10需要使用较大的冲压设备，背框10对应的模具尺寸很大，结构复杂，背框模具的成本高。因此现有技术的背框成本高。
【发明内容】
本发明主要解决的技术问题是提供一种背框、背框的制造方法以及背光***，能够降低材料成本和模具成本，利于光源的散热。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种平板显示装置的背框，背框包括至少两个主拼接件，至少两个主拼接件以拼接形式进行连接；至少两个主拼接件中包括用于承载光源的主拼接件，用于承载光源的主拼接件上设有散热鳍片组。
其中，散热鳍片组设置于用于承载光源的主拼接件的侧边上，并且散热鳍片组的延伸方向平行于背框的所在平面。
其中，延伸方向朝向背框的内侧或外侧。
其中，散热鳍片组设置于用于承载光源的主拼接件的侧边上，并且散热鳍片组的延伸方向垂直于背框的所在平面。
其中，散热鳍片组以可拆卸方式固定于用于承载光源的主拼接件或与主拼接件一体冲压成型。
其中，背框包括位于光源及其主拼接件之间的散热铝挤。
其中，至少两个主拼接件包括相互拼接的第一主拼接件和第二主拼接件，其中第一主拼接件的一端表面设有至少两个沿第一主拼接件的长度方向上间隔排列的拼接部，第一主拼接件通过其一拼接部与相应的第二主拼接件的一端拼接，以形成不同尺寸的背框的主框架。
其中，拼接部是第一主拼接件表面上设置的形状与第二主拼接件的一端适配的凹部，以收容第二主拼接件的一端。
其中，第一主拼接件的凹部底部设有第一贯穿孔，第二主拼接件的相应位置设有第二贯穿孔，背框包括固定件，固定件穿过第一贯穿孔和第二贯穿孔以将第一主拼接件和第二主拼接件拼接。
其中，拼接部是第一主拼接件表面上设置的凹部，第二主拼接件的一端表面设有至少两个沿第二主拼接件长度方向上间隔排列的设有凸起，其中一个凸起嵌入凹部，以拼接第一主拼接件和第二主拼接件。
其中，背框包括第三主拼接件以及第四主拼接件；所述第一主拼接件、第二主拼接件、第三主拼接件以及第四主拼接件皆为直条形，并且首尾拼接，以围绕形成所述背框的矩形主框架。
其中，背框包括设置于主框架内的辅拼接件，辅拼接件与主框架拼接。
其中，辅拼接件包括第一辅拼接件和第二辅拼接件，第一辅拼接件的两端分别与第一主拼接件、第二主拼接件、第三主拼接件以及第四主拼接件中的至少两个主拼接件拼接，第二辅拼接件的两端分别与第一主拼接件、第二主拼接件、第三主拼接件以及第四主拼接件中的至少两个主拼接件拼接。
其中，第一辅拼接件的两端分别与相邻设置的第一主拼接件、第二主拼接件拼接，第二辅拼接件的两端与相邻设置的第三主拼接件、第四主拼接件拼接；或第一辅拼接件的两端分别与相对设置的第一主拼接件、第三主拼接件拼接，第二辅拼接件的两端与相对设置的第一主拼接件、第三主拼接件拼接，第二主拼接件、第四主拼接件、第一辅拼接件以及第二辅拼接件之间平行设置。
其中，背框包括至少一个支架，可拆卸固定于第一主拼接件、第二主拼接件、第三主拼接件、第四主拼接件、第一辅拼接件以及第二辅拼接件之一或以上，支架设有凸包。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种制造平板显示装置的背框的方法，方法包括：制作背框的至少两个主拼接件，至少两个主拼接件中包括用于承载光源的主拼接件，用于承载光源的主拼接件上设有散热鳍片组；将至少两个主拼接件进行拼接。
其中，制作背框的至少两个主拼接件的步骤包括：制作至少第一、第二两个主拼接件，其中第一主拼接件的一端设有至少两个拼接部，每个拼接部的结构与相应的第二主拼接件一端适配；将至少两个主拼接件进行拼接的步骤包括：根据背框的尺寸选择至少两个拼接部的一拼接部与相应的第二主拼接件的一端拼接。
其中，当第二主拼接件的拼接位置与第一主拼接件的相邻端部之间存在其他拼接部时，在根据背框的尺寸选择至少两个拼接部的一拼接部与相应的第二主拼接件的一端拼接的步骤之前或之后，将第一主拼接件中位于第二主拼接件的拼接位置外侧的其他拼接部裁切掉。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种背光***，背光***包括光源、匀光机构以及背框；背框承载光源和匀光机构，背框为上述的背框。
本发明的有益效果是：区别于现有技术的情况，本发明的背框、背框的制造方法以及背光***通过设置最少两个主拼接件，将至少两个主拼接件以拼接形式进行连接，其中，有至少两个主拼接件用于承载光源，承载光源的主拼接件上设有散热鳍片组。通过上述方式，可以使背框的模具结构简单，降低背框模具的成本，并且节省背框的材料，以降低平板显示装置的生产成本，同时，利于光源的散热。
【附图说明】
图1是现有技术中液晶显示装置的背框结构示意图；
图2是根据本发明第一实施例的平板显示装置的结构示意图；
图3是根据本发明第二实施例的平板显示装置的背框的结构示意图；
图4是根据本发明第三实施例的平板显示装置的背框的结构示意图；
图5是根据本发明第四实施例的平板显示装置的背框的结构示意图；
图6是根据本发明第五实施例的平板显示装置中的拼接方式的结构示意图；
图7是根据本发明第六实施例的平板显示装置中的第一辅拼接件对角设置在主框架上的示意图；
图8是根据本发明第七实施例的平板显示装置中的第一辅拼接件以及第二辅拼接件在主框架上的示意图；
图9是根据本发明第八实施例的一种平板显示装置的背框中拼接部的结构示意图；
图10是图9中拼接部的第一实施例的截面示意图；
图11是根据本发明第九实施例的一种平板显示装置的背框中拼接部的拼接方式的示意图；
图12是根据本发明第十实施例的一种平板显示装置的背框中拼接部的拼接方式的示意图；
图13是根据本发明第十一实施例的一种平板显示装置的背框中拼接部的拼接方式的示意图；
图14是根据本发明第十二实施例的一种平板显示装置的背框中拼接部的结构示意图；
图15是根据本发明第十三实施例的一种平板显示装置的背框中拼接部的结构示意图；
图16是根据本发明第十四实施例的一种制造平板显示装置的背框的方法的流程图；
图17是根据本发明第十五实施例的一种具有触摸屏的平板显示装置的结构示意图；
图18是根据本发明第十六实施例的立体显示装置的结构示意图；
图19是根据本发明第十七实施例的等离子显示装置的结构示意图；
图20是根据本发明第十八实施例的平板显示装置的光源与散热鳍片的分解示意图；
图21是根据本发明第十九实施例的平板显示装置的光源与散热鳍片的分解示意图；
图22是根据本发明第二十实施例的平板显示装置的光源与散热鳍片的组装示意图；
图23是图21中散热鳍片第一实施例的立体示意图；
图24是图21中散热鳍片第二实施例的立体示意图。
【具体实施方式】
请参见图2-3，图2是根据本发明第一实施例的平板显示装置的结构示意图，图3是根据本发明第二实施例的平板显示装置的背框的第一实施例的结构示意图。如图2所示，本实施例的平板显示装置20包括：背光***21以及显示面板22，背光***21设置于显示面板22的背面，并且为显示面板22提供光源。
在本实施例中，背光***21包括光源25、匀光机构24以及背框23。其中，背框23承载光源25和匀光机构24。在背光***21为侧光式时，匀光机构24是导光板；在背光***21为直下式时，匀光机构24是扩散板。背框23包括至少第一主拼接件和第二主拼接件，至少第一、第二两个主拼接件形成背框23的主框架27。
一起参阅图3，背框23的第一实施例包括第一主拼接件261以及第二主拼接件262。第一主拼接件261的一端与第二主拼接件262的一端拼接，第一主拼接件261的另一端与第二主拼接件262的另一端拼接，以形成背框23的主框架27。第一主拼接件261和第二主拼接件262均为铝件或镀锌钢件。在本实施例中，第一主拼接件261和第二主拼接件262为L形。
一起参阅图4，背框23的第二实施例包括第一主拼接件281、第二主拼接件282以及第三主拼接件283。三个主拼接件281、282以及283拼接形成背框23的主框架27。三个主拼接件281、282以及283均为铝件或镀锌钢件。在本实施例中，第一主拼接件281为L形，第二、三拼接件282、283均为直条形。
此外，背框23还可以包括设置于主框架27内并与之拼接的辅拼接件。
以下以四个主拼接件和两个辅拼接件详细说明本发明平板显示装置20的背框23。
请参见图5，图5根据本发明第四实施例的平板显示装置的背框的结构示意图。如图5所示，在本实施例中背框23包括：第一主拼接件231、第二主拼接件232、第三主拼接件233、第四主拼接件234、第一辅拼接件235、第二辅拼接件236以及支架2371、2372、2373、2374、2375、2376及2377。第一主拼接件231、第二主拼接件232、第三主拼接件233以及第四主拼接件234通过首尾拼接形成背框23的矩形主框架27。第一辅拼接件235和第二辅拼接件236作为辅拼接件，设置于主框架27内，并且与主框架27拼接。
具体而言，第一主拼接件231的一端与第二主拼接件232的一端拼接，第二主拼接件232的另一端与第三主拼接件233的一端拼接，第三主拼接件233的另一端与第四主拼接件234的一端拼接，第四主拼接件234的另一端与第一主拼接件231的另一端拼接，以形成长方形的主框架27。其中，第一主拼接件231、第二主拼接件232、第三主拼接件233以及第四主拼接件234均为铝件或镀锌钢件。在本实施例中，第一主拼接件231、第二主拼接件232、第三主拼接件233以及第四主拼接件234均为直条形，在其他实施例中，本领域技术人员完全可以将第一主拼接件231、第二主拼接件232、第三主拼接件233以及第四主拼接件234全部设置为L形，或部分设置为直条形，剩余的设置为L形。例如，在图3中，第一主拼接件261和第二主拼接件262全部设置为L形；在图4中，第一主拼接件281设置为L形，第二、三主拼接件282以及283设置为直条形。
在本实施例中，平板显示装置20的背框23均采用拼接连接方式进行拼接固定。如图6所示，以第一主拼接件231的一端与第二主拼接件232的一端拼接连接方式为例，将第二主拼接件232的一端拼接在第一主拼接件231的一端上，比如，采用螺接、扣接或焊接等方式将第二主拼接件232的一端拼接在第一主拼接件231的一端上。
在本实施例中，第一辅拼接件235和第二辅拼接件236设置于背框23的主框架27内。第一辅拼接件235的一端与第一主拼接件231拼接，第一辅拼接件235的另一端与第三主拼接件233拼接，第二辅拼接件236的一端与第一主拼接件231拼接，第二辅拼接件236的另一端与第三主拼接件233拼接，并且第二主拼接件232、第四主拼接件234、第一辅拼接件235以及第二辅拼接件236之间平行设置。在其它实施例中，本领域技术人员在主框架27内设置至少一个辅拼接件，例如在主框架27内仅仅设置第一辅拼接件235。此外，第一辅拼接件235的两端可以分别与第一主拼接件231、第二主拼接件232、第三主拼接件233以及第四主拼接件234中的至少两个主拼接件拼接，例如第一辅拼接件235对角设置在主框架27内，如图7所示。同理可知，第二辅拼接件236的两端亦可以分别与第一主拼接件231、第二主拼接件232、第三主拼接件233以及第四主拼接件234中的至少两个主拼接件拼接。例如，第一辅拼接件235的两端分别与相邻设置的第一主拼接件231、第二主拼接件232拼接，第二辅拼接件236的两端分别与相邻设置的第三主拼接件233、第四主拼接件234拼接，如图8所示。
在本实施例中，背框23包括七个支架2371、2372、2373、2374、2375、2376及2377。其中，支架2371固定于第四主拼接件234上，支架2372、2373分别固定于第一辅拼接件235上，支架2374固定在第二辅拼接件236上，支架2375固定在第二主拼接件232上，支架2376、2377的两端分别固定于第一辅拼接件235和第二辅拼接件236上。实际上，支架可以固定于第一主拼接件231、第二主拼接件232、第三主拼接件233、第四主拼接件234、第一辅拼接件235以及第二辅拼接件236之一或以上。在其他实施例中，本领域技术人员完全可以在背框23上设置其他数量的支架，比如一个支架或以上。此外，支架可以拆卸固定于第一主拼接件231、第二主拼接件232、第三主拼接件233、第四主拼接件234、第一辅拼接件235以及第二辅拼接件236之一或以上。
在支架2371、2372、2373、2374、2375、2376及2377上均设有凸包（未标示），背框23可以通过该凸包固定电路板等器件。
以下进一步说明上述背框23相应的模具。在本实施例中，第一主拼接件231和第三主拼接件233的尺寸相同，形状相同，使用相同的模具冲压制得。第二主拼接件232、第四主拼接件234、第一辅拼接件235以及第二辅拼接件236的尺寸相同，形状相同，使用相同的模具冲压制得，实现模具共用。因此，本发明的背框23可以通过使用两种小尺寸模具冲压制得，相比于现有技术中背框10需要大尺寸模具，本发明的背框23的模具结构简单且小，进而降低背框23模具的成本。此外，本发明的背框23相对于现有技术中背框10的整体背框，能够大幅节省材料，以降低平板显示装置20的生产成本。
请参见图9，图9是根据本发明第八实施例的一种平板显示装置的背框中拼接部的结构示意图。如图9所示，在本实施例中，第一主拼接件的一端设有两个拼接部，拼接部的结构与相应的第二主拼接部的一端适配，以使第一主拼接件与相应的第二主拼接件的一端拼接。
具体而言，第一主拼接件231的一端设有拼接部2311、2312，拼接部2311、2312沿第一主拼接件231的长度方向上间隔排列，拼接部2311、2312是在第一主拼接件231设置的形状与第二主拼接件232的一端适配的凹部，以收容第二主拼接件232的一端。如图10所示，拼接部2311、2312为未贯穿第一主拼接件231的一端相对两侧面的凹部，凹部的形状为矩形，第二主拼接件232为一直条形。
在拼装较大尺寸背框23时，首先选择较邻近第一主拼接件231的端部的拼接部2311，并选择相应宽度的第二主拼接件232。随后将第二主拼接件232的一端设置在拼接部2311的凹部上。随后通过螺接、扣接或焊接等方式将第二主拼接件232的一端拼接固定在拼接部2311上。在拼装较小尺寸背框23时，首先选择较远离第一主拼接件231的端部的拼接部2312，并选择相应宽度的第二主拼接件232。随后将第二主拼接件232的一端设置在拼接部2312的凹部上。随后通过螺接、扣接或焊接等方式将第二主拼接件232的一端拼接固定在拼接部2312上。具体上，例如在第二主拼接件232的表面相应位置设有凸起，其中第二主拼接件232的凸起嵌入第一主拼接件231相对应位置的凹部，以拼接第一主拼接件231和第二主拼接件232，如图11所示。此外，所述第二主拼接件232的一端可以设有至少两个沿第二主拼接件232长度方向上间隔排列的凸起，比如两个、三个或四个等。
更进一步，第一主拼接件231的凹部为多阶梯结构的凹部，第二主拼接件232相对应位置设有与凹部适配的多阶梯结构的凸部，如图12所示。此外，如图13所示，以拼接部2311为例，第一主拼接件231的凹部底部设有第一贯穿孔2313，第二主拼接件232相应于拼接部2311的位置上设有第二贯穿孔2321，背框23进一步包括固定件240，固定件240穿过第一贯穿孔2313和第二贯穿孔2321，以将第一主拼接件231和第二主拼接件232拼接。
如图14，在本发明平板显示装置的背框的另一实施例中，第一主拼接件231的拼接部2311、2312的凹部形状为圆形。但是，在其他实施例中，本领域技术人员完全可以将凹部的形状设置成三角形等其他多边形形状。
如图15，在本发明平板显示装置的背框的另一实施例中，拼接部2311、2312为贯穿第一主拼接件231的相对两侧的凹部，以使第二主拼接件232的一端在拼接部2311、2312上移动。比如在第二主拼接件232的一端穿出拼接部2312并拼接固定后，可裁切掉穿出部分，进而调节第二主拼接件232在作为背框主拼接件时的长度。
在发明中，第一主拼接件231的另一端以及第三主拼接件233的两端均设有两个拼接部，其结构与拼接部2311、2312的结构相同。也就是说，第一主拼接件上设有至少两个拼接部，在此不再一一赘述。
综上所述，本发明的背框23的第一主拼接件上设有至少两个拼接部，根据用户需求进行设置拼接部的数量，在本实施例中选取两个拼接部2311、2312进行描述。因此，在设置背框23的模具时，仅需设置两组模具，即第一主拼接件的模具以及第二主拼接件的模具，在第一主拼接件上设置多个拼接部以拼接得到各种尺寸的背框23。在拼装背框23时，可以根据背框23的尺寸，选择相应的拼接部，通过拼接部将第二主拼接件拼接在第一主拼接件的拼接部上，并将第一主拼接件中位于第二主拼接件的拼接位置外侧的其他拼接部裁切掉，以获取所需尺寸的背框23。相对于现有技术中根据不同尺寸的背框10设置不同背框模具，本发明的平板显示装置的背框23仅需设置第一主拼接件的模具和第二主拼接件28的模具，实现满足各种尺寸产品要求的模具共用，并且模具结构简单，能够降低背框模具的成本。
本发明还提供一种制造平板显示装置的背框的模具，该背框的模具设有用于形成背框的主拼接件的主图案，主图案设有上设有用于在主拼接件的一端形成至少两个拼接部的子图案。其中，主拼接件为上述第一主拼接件和第二主拼接件，对应上述的主图案；拼接部为上述第一主拼接件的拼接部，对应上述的子图案，在此不再赘述。
如图16所示，本发明还提供一种制造平板显示装置的背框的方法，该方法包括以下步骤：
步骤501，制作背框的至少两个主拼接件，至少两个主拼接件中包括用于承载光源的主拼接件，用于承载光源的主拼接件上设有散热鳍片组；
步骤502，将至少两个主拼接件进行拼接。
其中，制作背框的至少两个主拼接件的步骤包括：制作至少第一、第二两个主拼接件，其中第一主拼接件的一端设有至少两个拼接部，每个拼接部的结构与相应的第二主拼接件一端适配。
将至少两个主拼接件进行拼接的步骤包括：根据背框的尺寸选择至少两个拼接部的一拼接部与相应的第二主拼接件的一端拼接。
在本实施例中，当第二主拼接件的拼接位置与第一主拼接件的相邻端部之间存在其他拼接部时，在根据背框的尺寸选择至少两个拼接部的一拼接部与相应的第二主拼接件的一端拼接的步骤之前或之后，将第一主拼接件中位于第二主拼接件的拼接位置外侧的其他拼接部裁切掉。其中第一主拼接件为上述第一主拼接件，第二主拼接件为上述第二主拼接件，在此不再赘述。
如图17所示，本发明的平板显示装置20进一步包括一触摸屏29，触摸屏29设置在平板显示装置20的显示面板22的出光面上。其中，平板显示装置20包括：背光***21以及上述的显示面板22，背光***21设置于显示面板22的背面，并且为显示面板22提供光源。
背光***21包括光源25、匀光机构24以及背框23。其中，背框23承载光源25和匀光机构24。在背光***21为侧光式时，匀光机构24是导光板；在背光***21为直下式时，匀光机构24是扩散板。背框23包括至少第一主拼接件和第二主拼接件，至少第一、第二两个主拼接件形成背框23的主框架27。
值得注意的是，本发明的平板显示装置20可以为液晶显示装置或液晶电视机。
本发明还提供一种立体显示装置30，如图18所示，立体显示装置30包括液晶透镜光栅31、背光***32以及显示面板33。其中，液晶透镜光栅31设置于显示面板33的出光面上。背光***32为上述各实施例的背光***，比如背光***32包括背框23。其中，背框23包括至少第一主拼接件和第二主拼接件，至少第一、第二两个主拼接件形成背框的主框架，在此不再赘述。
本发明还提供一种等离子显示装置40，如图19所示，等离子显示装置40包括等离子显示面板41以及背框42，背框42设置在等离子显示面板41的背面。其中，背框42为上述各实施例的背框，在此也不再赘述。
本发明还提供了一种适用于上述各实施例的光源散热方式。如图20所示，拼接件61、62、63和64为上述各实施例中的主拼接件。其中，用于承载光源65的主拼接件 61的侧边上设置有散热鳍片组611，并且散热鳍片组611的延伸方向平行于背框的所在平面。
在本实施例中，散热鳍片组611向背框的内侧延伸，光源65设置于L型散热铝挤66上，L型散热铝挤66设置于主拼接件61上。光源65发出的热量分别经L型散热铝挤66和主拼接件61传导至散热鳍片组611，通过散热鳍片组611较大的散热面积向空气中传递热量。此外，与主拼接件61相平行的另一主拼接件63上进行相同的设置。
由于散热鳍片组611的设置充分利用了背框内的镂空空间，不会增加整个背光***的体积，同时又起到提高散热效果的作用。
在另一实施例中，散热鳍片组向背框的外侧延伸。光源设置于L型散热铝挤上，L型散热铝挤设置于主拼接件上。光源发出的热量分别经L型散热铝挤和主拼接件传导至散热鳍片组，通过散热鳍片组较大的散热面积向空气中传递热量。
如图21所示，用于承载光源75的主拼接件 71的侧边上设置有散热鳍片组711，散热鳍片组711的延伸方向垂直于背框所在的平面，并且向背框的反面延伸。
光源75设置于L型散热铝挤76上，L型散热铝挤76设置于主拼接件71上。光源75发出的热量分别经L型散热铝挤76和主拼接件71传导至散热鳍片组711，通过散热鳍片组711较大的散热面积向空气中传递热量。另外，与主拼接件71相平行的主拼接件73上进行相同的设置。
如图22所示，图22为图21中光源75与散热鳍片组711的组装示意图。
图23为图21中散热鳍片的立体示意图，如图所示，散热鳍片组711与主拼接件71一体成型。
在另一实施例中，如图24所示，散热鳍片组811拼接于主拼接件81上。散热鳍片组811可以单独制造，并以可拆卸方式固定于主拼接件81上，使得散热鳍片组811可以从主拼接件81上拆卸下来。
当然，该散热鳍片组的延伸方向可以垂直于背框的所在平面，并且向背框的正面延伸。具体实施为，用于承载光源的的主拼接件的侧边上设置有散热鳍片组，散热鳍片组的延伸方向垂直于背框的所在平面，并且向背框的反面延伸。光源设置于L型散热铝挤上，L型散热铝挤设置于主拼接件上。光源发出的热量分别经L型散热铝挤和主拼接件传导至散热鳍片组，通过散热鳍片组较大的散热面积向空气中传递热量。
上述实施例中，散热鳍片组可以以可拆卸方式固定于用于承载光源的主拼接件上，也可以和主拼接件一体冲压成型。光源可以设置在背框上或直接设置在主拼接件上。
在上述实施例中，将散热鳍片组设置于相应的主拼接件上，使得光源可以通过散热鳍片组散热，且选择合适的高导热材料比如铝挤可进一步确保提高电源的工作稳定性。
通过上述方式，本发明平板显示装置、立体显示装置以及等离子显示装置的背框模具结构简单，降低背框模具的成本，并且节省背框的材料，以降低平板显示装置的成本。
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 (19)

  1. 一种平板显示装置的背框，其特征在于：
    所述背框包括至少两个主拼接件，所述至少两个主拼接件以拼接形式进行连接；
    所述至少两个主拼接件中包括用于承载光源的主拼接件，所述用于承载光源的主拼接件上设有散热鳍片组。
  2. 根据权利要求1所述的背框，其特征在于：
    所述散热鳍片组设置于用于承载光源的主拼接件的侧边上，并且散热鳍片组的延伸方向平行于背框的所在平面。
  3. 根据权利要求2所述的背框，其特征在于：
    所述延伸方向朝向背框的内侧或外侧。
  4. 根据权利要求1所述的背框，其特征在于：
    所述散热鳍片组设置于用于承载光源的主拼接件的侧边上，并且散热鳍片组的延伸方向垂直于背框的所在平面。
  5. 根据权利要求1所述的背框，其特征在于：
    所述散热鳍片组以可拆卸方式固定于用于承载光源的主拼接件或与所述主拼接件一体冲压成型。
  6. 根据权利要求1所述的背框，其特征在于：
    所述背框包括位于光源及其主拼接件之间的散热铝挤。
  7. 根据权利要求1所述的背框，其特征在于：
    所述至少两个主拼接件包括相互拼接的第一主拼接件和第二主拼接件，其中第一主拼接件的一端表面设有至少两个沿第一主拼接件的长度方向上间隔排列的拼接部，所述第一主拼接件通过其一拼接部与相应的第二主拼接件的一端拼接，以形成不同尺寸的所述背框的主框架。
  8. 根据权利要求7所述的背框，其特征在于：
    所述拼接部是第一主拼接件表面上设置的形状与第二主拼接件的一端适配的凹部，以收容第二主拼接件的一端。
  9. 根据权利要求7所述的背框，其特征在于：
    所述第一主拼接件的凹部底部设有第一贯穿孔，所述第二主拼接件的相应位置设有第二贯穿孔，所述背框包括固定件，所述固定件穿过第一贯穿孔和第二贯穿孔以将第一主拼接件和第二主拼接件拼接。
  10. 根据权利要求7所述的背框，其特征在于：
    所述拼接部是第一主拼接件表面上设置的凹部，所述第二主拼接件的一端表面设有至少两个沿第二主拼接件长度方向上间隔排列的设有凸起，其中一个所述凸起嵌入凹部，以拼接所述第一主拼接件和第二主拼接件。
  11. 根据权利要求7所述的背框，其特征在于：
    所述背框包括第三主拼接件以及第四主拼接件；所述第一主拼接件、第二主拼接件、第三主拼接件以及第四主拼接件皆为直条形，并且首尾拼接，以围绕形成所述背框的矩形主框架。
  12. 根据权利要求11所述的背框，其特征在于：
    所述背框包括设置于主框架内的辅拼接件，所述辅拼接件与主框架拼接。
  13. 根据权利要求12所述的背框，其特征在于：
    所述辅拼接件包括第一辅拼接件和第二辅拼接件，所述第一辅拼接件的两端分别与第一主拼接件、第二主拼接件、第三主拼接件以及第四主拼接件中的至少两个主拼接件拼接，所述第二辅拼接件的两端分别与第一主拼接件、第二主拼接件、第三主拼接件以及第四主拼接件中的至少两个主拼接件拼接。
  14. 根据权利要求13所述的背框，其特征在于：
    所述第一辅拼接件的两端分别与相邻设置的第一主拼接件、第二主拼接件拼接，第二辅拼接件的两端与相邻设置的第三主拼接件、第四主拼接件拼接；
    或所述第一辅拼接件的两端分别与相对设置的第一主拼接件、第三主拼接件拼接，第二辅拼接件的两端与相对设置的第一主拼接件、第三主拼接件拼接；
    所述第二主拼接件、第四主拼接件、第一辅拼接件以及第二辅拼接件之间平行设置。
  15. 根据权利要求13所述的背框，其特征在于：
    所述背框包括至少一个支架，可拆卸固定于所述第一主拼接件、第二主拼接件、第三主拼接件、第四主拼接件、第一辅拼接件以及第二辅拼接件之一或以上，所述支架设有凸包。
  16. 一种制造平板显示装置的背框的方法，其特征在于：
    制作背框的至少两个主拼接件，所述至少两个主拼接件中包括用于承载光源的主拼接件，所述用于承载光源的主拼接件上设有散热鳍片组；
    将所述至少两个主拼接件进行拼接。
  17. 根据权利要求16所述的方法，其特征在于：
    所述制作背框的至少两个主拼接件的步骤包括：制作至少第一、第二两个主拼接件，其中第一主拼接件的一端设有至少两个拼接部，每个拼接部的结构与相应的第二主拼接件一端适配；
    所述将至少两个主拼接件进行拼接的步骤包括：根据背框的尺寸选择所述至少两个拼接部的一拼接部与相应的第二主拼接件的一端拼接。
  18. 根据权利要求17所述的方法，其特征在于：当所述第二主拼接件的拼接位置与所述第一主拼接件的相邻端部之间存在其他拼接部时，在根据背框的尺寸选择所述至少两个拼接部的一拼接部与相应的第二主拼接件的一端拼接的步骤之前或之后，将所述第一主拼接件中位于所述第二主拼接件的拼接位置外侧的所述其他拼接部裁切掉。
  19. 一种背光***，其特征在于： 所述背光***包括光源、匀光机构以及背框； 所述背框承载所述光源和匀光机构，所述背框为上述所述的背框。
PCT/CN2011/082800 2011-11-18 2011-11-24 背框、背框的制造方法以及背光*** WO2013071615A1 (zh)

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