WO2013071530A1 - 背光系统及其制造方法 - Google Patents

背光系统及其制造方法 Download PDF

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Publication number
WO2013071530A1
WO2013071530A1 PCT/CN2011/082644 CN2011082644W WO2013071530A1 WO 2013071530 A1 WO2013071530 A1 WO 2013071530A1 CN 2011082644 W CN2011082644 W CN 2011082644W WO 2013071530 A1 WO2013071530 A1 WO 2013071530A1
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WO
WIPO (PCT)
Prior art keywords
assembling piece
piece
splicing
primary
primary assembling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2011/082644
Other languages
English (en)
French (fr)
Inventor
萧宇均
阙成文
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 US13/380,827 priority Critical patent/US8632239B2/en
Publication of WO2013071530A1 publication Critical patent/WO2013071530A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133314—Back frames
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133322—Mechanical guidance or alignment of LCD panel support components
    • 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
    • G02F1/133325—Assembling processes

Definitions

  • the present invention relates to the field of display technology, and in particular to a backlight system for a flat panel display device and a method of fabricating the same.
  • 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, you need to set different back frame molds according to different size LCD panels.
  • FIG. 1 is a schematic structural view of a back frame of a liquid crystal display device in the prior art.
  • the back frame 10 adopts a monolithic 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 requires a large punching device, and the corresponding frame of the back frame 10 has a large size and a complicated structure, and the cost of the back frame mold is high. Therefore, the back frame of the prior art is costly.
  • the technical problem to be solved by the present invention is to provide a backlight system and a manufacturing method thereof, which can reduce material cost and mold cost, and facilitate disassembly and fixing of the circuit board.
  • one technical solution adopted by the present invention is: providing A backlight system of a flat panel display device, the backlight system comprises a back frame and a circuit board; the back frame comprises a primary splicing component and a secondary splicing component; the number of primary splicing components is at least two, and at least two primary splicing components are connected in a splicing manner
  • the auxiliary splicing piece is disposed in the back frame and spliced with the back frame; the circuit board is detachably fixed on the back frame.
  • the backlight system includes a bracket fixed to the auxiliary assembling piece, the primary assembling piece or the combination of the above, and the circuit board is detachably fixed to the bracket.
  • the bracket includes a mounting slot and a buckle, and the circuit board is received in the mounting slot and is detachably fixed by the buckle.
  • the bracket comprises a first bridge and a second bridge, and the first bridge and the second bridge are arranged in parallel between the auxiliary assembling piece and the primary assembling piece, between the two primary assembling pieces or between the two auxiliary assembling pieces;
  • One side of the bridge adjacent to the other bridge protrudes from the front side of the back frame or the opposite side of the bridge, and each of the buckles includes an extending arm protruding from one side of the bridge and a hook bent at the end of the extending arm.
  • the extension arm constitutes the slot wall structure of the installation slot, and the four hooks form the support structure of the bottom of the installation slot; the same side of the four slot walls are provided with the notch of the clamping circuit board, and the corresponding notch of the side of the circuit board is set.
  • the shrapnel protrudes from the side of a bridge, and the end is provided with a hook.
  • 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 the end surface of the second primary assembling piece is provided with protrusions arranged at intervals along the length direction of the second primary assembling piece, and the protrusion is embedded in the concave portion for 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 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.
  • one technical solution adopted by the present invention is: providing A method for manufacturing a backlight system for a flat panel display device, the method comprising: fabricating a primary splicing member and a secondary splicing member of a back frame, the number of primary splicing members being at least two; splicing at least two primary splicing members to form a back frame The main frame; the auxiliary splicing piece is spliced into the main frame; the circuit board is detachably fixed to the back frame.
  • the step of fabricating the primary assembling piece of the back frame includes: fabricating at least the first and second primary assembling pieces, wherein one end of the first primary assembling piece is provided with at least two joints, and the structure and corresponding of each joint part The second primary assembling piece is adapted at one end; the step of splicing the at least two primary assembling pieces to form the main frame of the back frame comprises: selecting a joint of the at least two joints according to the size of the back frame and the corresponding second primary stitching One end of the piece is stitched.
  • 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.
  • the beneficial effects of the present invention are: different from the prior art, the backlight system of the present invention and the manufacturing method thereof are provided with a minimum of two primary assembling pieces to form a main frame of the back frame, and a secondary assembling piece is disposed in the main frame, At the same time, the circuit board is detached and fixed on the back frame.
  • 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 to reduce the production cost of the flat panel display device.
  • 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.
  • FIG. 16 is a perspective view showing a circuit board and a bracket of a flat panel display device in an unassembled state according to a fourteenth embodiment of the present invention
  • Figure 17 is a perspective view of the first embodiment of the buckle of Figure 16;
  • Figure 18 is a perspective view of the first embodiment of the elastic piece
  • FIG. 19 is a perspective view showing a circuit board and a bracket of a flat panel display device in an unassembled state according to a fifteenth embodiment of the present invention.
  • FIG. 20 is a perspective view showing a circuit board and a bracket of a flat panel display device in an unassembled state according to a sixteenth embodiment of the present invention
  • 21 is a perspective view showing a circuit board and a bracket of a flat panel display device in an unassembled state according to a seventeenth embodiment of the present invention.
  • Figure 22 is a cross-sectional view showing the assembly of a circuit board and a bracket of a flat panel display device according to an eighteenth embodiment of the present invention.
  • FIG. 23 is a perspective view showing the assembly of a circuit board and a bracket of a flat panel display device according to a nineteenth embodiment of the present invention.
  • FIG. 24 is a perspective view showing a circuit board and a bracket of a flat panel display device in an unassembled state according to a twentieth embodiment of the present invention.
  • 25 is a flow chart of a method of manufacturing a backlight system of a flat panel display device according to a twenty-first embodiment of the present invention.
  • 26 is a schematic structural diagram of a flat panel display device with a touch screen according to a twenty-second embodiment of the present invention.
  • Figure 27 is a schematic structural view of a stereoscopic display device according to a twenty-third embodiment of the present invention.
  • Figure 28 is a schematic structural view of a plasma display device in accordance with a twenty-fourth embodiment of the present invention.
  • 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 based on A schematic structural view 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 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 The light source 25 and the light homogenizing mechanism 24 are carried.
  • 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 diffusion plate.
  • Back frame 23 The at least first primary splicing member and the second primary splicing member are included, and at least the first and second primary splicing members form a 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 back frame 23
  • the main frame 27 .
  • the first primary splicing piece 261 and the second primary splicing piece 262 are both aluminum or galvanized steel.
  • the first primary assembling piece 261 and the second primary assembling piece 262 are L Shape.
  • the second embodiment of the back frame 23 includes a first primary splicing member 281 and a second primary splicing member 282. And a third primary splicing piece 283.
  • the three primary splices 281, 282, and 283 are joined to form the main frame 27 of the back frame 23.
  • Three primary splices 281, 282 and 283 are 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 member 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 view 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.
  • 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 by the end-to-end stitching to form the rectangular main frame 27 of the back frame 23.
  • first primary assembling piece 231 is spliced with one end of the second primary assembling piece 232, and the second primary assembling piece 232
  • the other end of the third primary assembling piece 233 is spliced with one end of the third primary assembling piece 233
  • the other end of the fourth primary assembling piece 234 is connected with the first primary assembling piece.
  • the other end of the 231 is spliced 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 All are aluminum or galvanized steel.
  • 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 All of them are straight strips.
  • those skilled in the art can completely set 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 to L-shaped, or partially set to straight, the remaining settings are L-shaped.
  • the first primary assembling piece 261 and the second primary assembling piece 262 are all set to an L shape;
  • the first primary assembling piece 281 is set to an L shape, and the second and third primary assembling pieces 282 and 283 are set to a straight strip shape.
  • the back frame 23 of the flat panel display device 20 is spliced and fixed by using a splicing connection.
  • Figure 6 For example, 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 to 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 screwing, fastening or welding.
  • the first secondary assembling piece 235 and the second secondary assembling piece 236 are disposed on the main frame of the back frame 23 Inside.
  • One end of the first auxiliary assembling piece 235 is spliced with the first primary assembling piece 231, and the other end of the first auxiliary assembling piece 235 is spliced with the third primary assembling piece 233, and the second auxiliary assembling piece 236 is 236.
  • One end is spliced with the first primary assembling piece 231
  • the other end of the second secondary assembling piece 236 is spliced with the third primary assembling piece 233
  • the second primary assembling piece 232 and the fourth primary assembling piece 234 are 234.
  • the first auxiliary assembling piece 235 and the second auxiliary assembling piece 236 are arranged in parallel.
  • those skilled in the art provide at least one secondary splicing within the main frame 27, such as in the main frame 27 Only the first auxiliary splicing piece 235 is set inside.
  • the two ends of the first auxiliary assembling piece 235 can be respectively associated with the first primary assembling piece 231, the second primary assembling piece 232, and the third primary assembling piece 233.
  • at least two primary assembling pieces of the fourth primary assembling piece 234 are spliced, for example, the first auxiliary assembling piece 235 is diagonally disposed in the main frame 27, as shown in FIG.
  • the second auxiliary assembling piece 236 The two ends 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 may be respectively spliced.
  • the first auxiliary splicing piece The two ends of the second auxiliary assembling piece 236 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 adjacent to the adjacent third primary assembling piece 233.
  • the fourth main assembly piece 234 is spliced, as shown in Figure 8.
  • 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, and the brackets 2372 and 2373 are respectively fixed on the first auxiliary assembling piece 235, and the bracket is respectively fixed.
  • 2374 is fixed on the second auxiliary assembling piece 236, and the bracket 2375 is fixed on the second primary assembling piece 232, and the two ends of the brackets 2376 and 2377 are respectively fixed to the first auxiliary assembling piece 235 And the second auxiliary splicing piece 236.
  • the bracket can be fixed to the first primary assembling piece 231, the second primary assembling piece 232, the third primary assembling piece 233, the fourth primary assembling piece 234, and the first auxiliary assembling piece.
  • One or more of 235 and the second secondary splicing piece 236 can completely in the back frame 23 Set a different number of brackets, such as a bracket or more.
  • the bracket can be detachably fixed to 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.
  • One or more of the first auxiliary assembling piece 235 and the second auxiliary assembling piece 236 can be fixed to 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.
  • a convex hull (not shown) is disposed on the upper frame, and the back frame 23 can fix the circuit board and the like through the convex hull.
  • the first primary assembling piece 231 and the third primary assembling piece 233 The dimensions are the same, the shapes are the same, and they 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 The dimensions are the same, the shapes are the same, and the same mold is used for stamping to achieve mold sharing. Therefore, the back frame 23 of the present invention can be produced by stamping using two small-sized molds, compared to the back frame 10 of the prior art.
  • 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 is compared to the back frame 10 of the prior art.
  • the overall back frame can greatly save materials to reduce 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.
  • Figure 9 As shown in the embodiment, one end of the first primary assembling piece is provided with two joint portions, and the structure of the joint portion is matched with one end of the corresponding second main joint portion, so that the first primary assembling piece and the corresponding One end of the second primary assembling piece is spliced.
  • one end of the first primary assembling piece 231 is provided with a joint portion 2311, 2312, a joint portion 2311, 2312 are arranged along the length direction of the first primary assembling piece 231, and the joint portions 2311, 2312 are the shape of the first primary assembling piece 231 and the second primary assembling piece 232.
  • One end of the recess is adapted to receive one end of the second primary splicing member 232.
  • the joint portions 2311 and 2312 are not penetrated through the first primary assembling piece 231.
  • One end is opposite to the concave portions on both sides, the concave portion has a rectangular shape, and the second primary assembling member 232 has a straight strip shape.
  • the second primary assembling piece 232 is placed on the concave portion of the joint portion 2312.
  • the second primary splicing piece is then screwed, snapped or welded
  • One end of the 232 is spliced and fixed on the splicing portion 2312.
  • a protrusion is provided 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 first primary assembling piece.
  • 231 corresponding positions of the recesses to splicing the first primary assembling piece 231 and the second primary assembling piece 232, as shown in FIG.
  • the second primary assembling piece 232 One end may be provided with at least two protrusions spaced apart along the length of the second primary assembling piece 232, such as two, three or four.
  • the recess of the first primary assembling piece 231 is a recess of a multi-step structure
  • the second primary assembling piece 232 The corresponding position is provided with a convex portion of a multi-step structure adapted to the concave portion, as shown in FIG.
  • the bottom portion of the concave portion of the first primary assembling piece 231 is provided with a first through hole. 2313.
  • the second main assembling piece 232 is provided with a second through hole 2321 corresponding to the joint portion 2311.
  • the back frame 23 further includes a fixing member 240 and a fixing member 240. The first through hole 2313 and the second through hole 2321 are passed through to splicing the first primary assembling piece 231 and the second primary assembling piece 232.
  • the splicing portion 2311 of the first primary assembling piece 231 is 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 splicing portions 2311, 2312 are such that one end of the second primary assembling piece 232 moves on the joint portions 2311, 2312.
  • the through-out portion can be cut off, thereby adjusting the length of the second primary splicing member 232 as the main splicing member 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 splice portions, the structure and the joint portion thereof.
  • the structures of 2311 and 2312 are the same. That is to say, at least two splices are provided on the first main assembling piece, which will not be repeated here.
  • the back frame 23 of the present invention The first primary assembling piece is provided with at least two splicing portions, and the number of the splicing portions is set according to the user's requirements.
  • two splicing portions 2311 and 2312 are selected for description. Therefore, in the back frame 23
  • only two sets of molds that is, the mold of the first primary assembling piece and the mold of the second primary assembling piece are disposed, and a plurality of joints are arranged on the first primary assembling piece to obtain the back frame 23 of various sizes. .
  • the back frame 23 When, according to the back frame 23 The size of the joint is selected, and the second primary assembling piece is spliced on the joint portion of the first primary assembling piece through the jointing portion, and the other of the first primary assembling piece is located outside the stitching position of the second primary assembling piece.
  • the splicing section is cut to obtain the back frame of the desired size twenty three .
  • the back frame 23 of the flat panel display device of the present invention only needs to be provided with the mold of the first primary assembling piece and the second primary assembling piece 28, as compared with the prior art, which is provided with different back frame molds according to different sizes of the back frame 10.
  • the mold realizes the mold sharing that meets the requirements of various sizes of products, and the mold structure is simple, which can reduce the cost of the back frame mold.
  • 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 main splicing piece is the first main splicing piece and the second main splicing piece, and corresponds to the main pattern;
  • the splicing part is the splicing part of the first main splicing piece, corresponding to the above-mentioned sub-pattern, and details are not described herein again. .
  • FIG. 16 is a diagram of the present invention.
  • the backlight system 21 of the present invention further includes a circuit board 31 and a bracket for detaching the fixed circuit board.
  • the bracket 32 includes: a first bridge 321 , a second bridge 322 , a buckle 3211 , a buckle 3212 , a buckle 3221 , a buckle 3222 , and a spring 323 .
  • Circuit board 31 Remove and attach to bracket 32.
  • the bracket 32 is provided with a mounting slot 37, and the circuit board 31 is specifically received in the mounting slot.
  • the first bridge 321 and the second bridge 322 Arranging in parallel between the auxiliary assembling piece and the primary assembling piece, between the two primary assembling pieces or between the two auxiliary assembling pieces (not shown), and the first bridge 321 and the second bridge 322
  • the middle portion is away from the main frame, and the two ends are spliced with the main frame.
  • One side of each bridge frame adjacent to the other bridge frame protrudes from the front frame, such as a buckle 3211, a buckle 3212, a buckle 3221, and a buckle. 3222.
  • each of the buckles includes an extension arm 34 projecting from one side of the bridge, and a hook 35 bent at the end of the extension arm 34. And the notch 36 on the hook 35.
  • the notches on the buckle 3211, the buckle 3212, the buckle 3221, and the buckle 3222 are oriented in the same direction and with the elastic piece 323 Relative.
  • the shrapnel 323 protrudes from the side of a bridge and is provided with a hook at the end.
  • the elastic piece is an elastic material and can swing back and forth in the direction of the notch. In other embodiments, the number of shrapnels 323 is one or more.
  • the extending arms of the four buckles constitute a slot wall structure of the mounting slot 37 (not shown), and the hooks of the four buckles constitute a supporting structure at the bottom of the mounting slot.
  • the circuit board 31 When the circuit board 31 is removed, it is only necessary to push the circuit board 31 toward the spring 323 until the circuit board 31 After the bumps at the corresponding notch positions on the side exit the notches of the buckle 3221 and the buckle 3222, the circuit board 31 can be taken out.
  • the bumps on the side of the corresponding side of the circuit board 31 and the buckle 3222 and the buckle 3221 The notch is fastened, and the concave block at the corresponding notch position on the side of the circuit board 31 is engaged with the notch on the buckle 3211 and the buckle 3212.
  • the length between the two notches of the circuit board 31 and the buckle 3221 The distance from the buckle 3222 is equal, the distance between the bottom of the bump and the opposite side and the bottom of the buckle 3221 or the bottom of the buckle 3222 are equal to the vertical distance of the face of the spring 323, and the circuit board 31
  • the length of the bottom of the upper recess is not less than the width of the buckle 3211 or the buckle 3212.
  • the shrapnel includes a flap 3231 and a handle 3232.
  • the shrapnel and the first bridge 321 Rotate the connection and the shrapnel can move back and forth.
  • the circuit board is removed, the blank 3231 can be pulled back through the handle 3232, and at the same time, the circuit board is pushed toward the blank, and the bumps at the corresponding notch positions on the side of the circuit board are released from the buckle. After the 3221 and the buckle 3222 are notched, the board can be taken out.
  • the first bridge 321 and the second bridge 322 Adjacent one side protrudes from the reverse side of the back frame.
  • the first bridge 321 and the second bridge 322 is a whole structure.
  • a buckle 3211 is protruded from the reverse side of the back frame.
  • buckle 3212, buckle 3221, buckle 3222, these four buckles are directly fixed to the auxiliary splicing piece, the main splicing piece or the above combination.
  • a snap 3241 is protruded from the reverse side of the back frame.
  • the buckle 3242, the buckle 3241 and the upper portion of the buckle 3242 are F-shaped, forming a recess 32411 and a recess 32421 of the fixed circuit board, the recess 32411 and the recess The position of 32421 is opposite.
  • the buckle 3241 and the buckle 3242 are spaced apart from the auxiliary splicing piece, the primary splicing piece, or a combination thereof. And the buckle 3241 and the buckle 3242 The distance between them is equal to the length or width of the board.
  • the buckle 3241 and the buckle 3242 are elastic materials and are swingable in the direction of the recess 32411 and the recess 32421.
  • the buckle 3241 and the buckle 3242 can be outwardly turned in the direction of the arrow in the figure, and the side of the circuit board 31 is inserted into the concave portion. 32411, the other side is inserted into the recess 32421, and the force is applied to complete the fixing of the circuit board 31.
  • the buckle is also outwardly oriented in the direction of the arrow in the figure. With the buckle 3242, remove the board 31.
  • the bases of the buckles 3241 and buckles 3242 can also be fixedly coupled by brackets.
  • a snap 3251 is protruded from the reverse side of the back frame.
  • the buckle 3252, the buckle 3251 and the buckle 3252 have an upper F shape, forming a recess 32511 and a recess 32521 for fixing the circuit board.
  • the specific operation is that the hand lever can be moved in the direction of the arrow in the figure, and when the hand lever 32512 and the hand lever 32522 are pulled up, the circuit board is 31 Insert, and then press down the lever 32512 and the lever 32522 to secure the board 31.
  • you need to remove the board 31 pull up the lever 32512 and the hand lever 32522 , remove the board 31.
  • the bases of the buckles 3251 and buckles 3252 can also be fixedly coupled by brackets.
  • the detachable fixed circuit board bracket of the flat panel display device two bridges are disposed on the main frame. One side of each bridge away from the other bridge protrudes from the front of the back frame.
  • the first bridge 321 is provided with a buckle 3251 and a buckle 3252
  • the second bridge 322 is provided with a buckle.
  • the 3253 and the buckle 3254 are pivotally connected between the buckle and the bridge, and the buckle can be rotated 360 degrees along the connection point with the bridge.
  • the circuit board 31 when the circuit board 31 needs to be fixed, the circuit board 31 is first placed on the first bridge 321 and the second bridge. Between 322, the two sides of the circuit board 31 are in contact with the first bridge 321 and the second bridge 322, respectively, and then the buckle 3251 and the buckle 3253 are rotated away from each other, and similarly, the buckle is buckled. 3252 and the buckle 3254 Turn away from the other side, put it into the circuit board 31, and then move the buckle 3251 and the buckle 3253 toward each other. Similarly, the buckle 3252 And the buckle 3254 turns toward the other side to fix the board 31.
  • brackets As shown in Figure 16-24 As shown, by providing different shapes of brackets on the backboard, it is convenient to disassemble and install the circuit board, which saves time. At the same time, the bracket can be fixed to the auxiliary assembling piece, the primary assembling piece or the above combination.
  • the present invention also provides a method of manufacturing a backlight system of a flat panel display device, the method comprising the following steps:
  • Step 401 Produce a primary assembling piece and a secondary assembling piece of the back frame, and the number of the primary assembling pieces is at least two;
  • Step 402 splicing at least two primary assembling pieces to form a main frame of the back frame
  • Step 403 splicing the auxiliary splicing piece into the main frame
  • Step 404 the circuit board is detachably fixed to the back frame.
  • the step of making the main assembling piece of the back frame comprises: fabricating at least the first and second main assembling pieces, wherein one end of the first main assembling piece is provided with at least two joint parts, and the structure of each joint part and the corresponding part The two primary assembling pieces are fitted at one end.
  • the step of splicing at least two primary assembling pieces to form the main frame of the back frame 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 splicing 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, and details are not described herein again. .
  • the flat panel display device 20 of the present invention further includes a touch screen 29, a touch screen 29 It 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 display panel 22, and a backlight system 21 It is disposed on the back 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 a uniform light 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 diffusion plate.
  • Back frame 23 The at least first primary splicing member and the second primary splicing member are included, and at least the first and second primary splicing members form a 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, as shown in Fig. 27, the stereoscopic display device 30 includes a liquid crystal lens grating 41. , backlight system 42 and display panel 43.
  • the liquid crystal lens grating 41 is disposed on the light emitting surface of the display panel 43.
  • the backlight system 42 is a backlight system of the above embodiments, such as a backlight system. 42 Includes 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, as shown in Fig. 28, the plasma display device 40 includes a plasma display panel 51 and the back frame 52, the back frame 52 is disposed on the back of the plasma display panel 51.
  • the back frame 52 is the back frame of each of the above embodiments, and details are not described herein again.
  • the flat frame display device, the stereoscopic display device, and the back frame mold of the plasma display device have a simple structure, reduce the cost of the back frame mold, and save the material of the back frame to reduce the cost of the flat display device.

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Abstract

一种平板显示装置（20）的背光系统（21）及其制造方法，所述背光系统（21）包括背框（23）和电路板（31）；所述背框（23）包括主拼接件（231，232，233，234）和辅拼接件（235，236）；所述主拼接件（231，232，233，234）的数量为至少两个，所述至少两个主拼接件（231，232，233，234）以拼接形式进行连接；所述辅拼接件（235，236）设置于背框（23）内并与背框（23）拼接；所述电路板（31）可拆卸固定于背框（23）上。通过上述方式，可以使背框（23）的模具结构简单，降低背框模具的成本，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，同时还可便于电路板（31）的拆卸固定。

Description

背光系统及其制造方法
【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 背光系统及其制造方法 。
【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光系统及其制造方法，能够降低材料成本和模具成本，便于对电路板的拆卸和固定。
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光系统，背光系统包括背框和电路板；背框包括主拼接件和辅拼接件；主拼接件的数量为至少两个，至少两个主拼接件以拼接形式进行连接；辅拼接件设置于背框内并与背框拼接；电路板可拆卸固定于背框上。
其中，背光系统包括固定于辅拼接件、主拼接件或以上组合的支架，电路板可拆卸固定于支架上。
其中，支架包括安装槽和卡扣，电路板收容于安装槽内，并由卡扣可拆卸固定。
其中，支架包括第一桥架和第二桥架，第一桥架和第二桥架平行间隔地搭设于辅拼接件和主拼接件之间、两个主拼接件之间或两个辅拼接件之间；每一桥架邻近另一桥架的一侧均向背框正面或均向反面突设有两卡扣，每一卡扣包括自桥架一侧边突出的延伸臂和在延伸臂末端弯折的弯钩，四个延伸臂构成安装槽的槽壁结构，四个弯钩构成安装槽底部的支撑结构；四个槽壁的同一侧边均设有卡接电路板的缺口，电路板侧边相应缺口的位置设有与缺口卡接的凸块；与缺口相对的槽壁位置处设有弹片，弹片给予电路板的响应侧边施加与缺口方向相反的力。
其中，弹片自一桥架侧边突出，并且末端设有弯钩。
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相应位置设有沿第二主拼接件长度方向上间隔排列的凸起，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，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光系统的方法，该方法包括：制作背框的主拼接件和辅拼接件，主拼接件的数量为至少两个；拼接至少两个主拼接件而形成背框的主框架；将辅拼接件拼接于主框架内；将电路板可拆卸固定于背框上。
其中，制作背框的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；拼接至少两个主拼接件而形成背框的主框架的步骤包括：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。
本发明的有益效果是：区别于现有技术的情况，本发明的背光系统及其制造方法 通过设置最少两个主拼接件以形成背框的主框架，且主框架内设置有辅拼接件，同时将电路板拆卸固定于背框上。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。
【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平板显示装置的电路板和支架未组装时的立体示意图；
图17是图16中卡扣的第一实施例的立体示意图；
图18是弹片的第一实施例的立体示意图；
图19是根据本发明第十五实施例的一种平板显示装置的电路板和支架未组装时的立体示意图；
图20是根据本发明第十六实施例的一种平板显示装置的电路板和支架未组装时的立体示意图；
图21是根据本发明第十七实施例的一种平板显示装置的电路板和支架未组装时的立体示意图；
图22是根据本发明第十八实施例的一种平板显示装置的电路板和支架组装时的截面示意图；
图23是根据本发明第十九实施例的一种平板显示装置的电路板和支架组装时的立体示意图；
图24是根据本发明第二十实施例的一种平板显示装置的电路板和支架未组装时的立体示意图；
图25是根据本发明第二十一实施例的一种制造平板显示装置的背光系统的方法流程图；
图26是根据本发明第第二十二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27是根据本发明第二十三实施例的立体显示装置的结构示意图；
图28是根据本发明第二十四实施例的等离子显示装置的结构示意图。
【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：背光系统 21 以及显示面板 22 ，背光系统 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，背光系统 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 。在背光系统 21 为侧光式时，匀光机构 24 是导光板；在背光系统 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 。
请参见图 16 ，图 16 是根据本发明 第十四实施例的一种平板显示装置的电路板和支架未组装时的立体示意图， 如图所示， 本发明的背光系统 21 进一步包括电路板 31 和拆卸固定电路板的支架 32 。支架 32 包括：第一桥架 321 、第二桥架 322 、卡扣 3211 、卡扣 3212 、卡扣 3221 、卡扣 3222 以及弹片 323 。电路板 31 拆卸固定于支架 32 上。在本实施例中，支架 32 设有安装槽 37 ，电路板 31 具体收容于安装槽内。
在本实施例中，第一桥架 321 和第二桥架 322 平行间隔地搭设于辅拼接件和主拼接件之间、两个主拼接件之间或两个辅拼接件之间（图未标），且第一桥架 321 和第二桥架 322 的中间部分远离主框架，两端与主框架拼接， 每一桥架邻近另一桥架的一侧均向背框正面突设两个卡扣，如 卡扣 3211 、卡扣 3212 、卡扣 3221 以及卡扣 3222 。
一起参阅图 17 ， 每一卡扣包括自桥架一侧边突出的延伸臂 34 、在延伸臂 34 末端弯折的弯钩 35 以及弯钩 35 上的缺口 36 。
卡扣 3211 、卡扣 3212 、卡扣 3221 和卡扣 3222 上的缺口 方向一致且与弹片 323 相对。 弹片 323 自一桥架侧边突出，并且末端设有弯钩。该弹片为弹性材料，可在缺口的方向上前后摆动。在其它实施例中，弹片 323 的数量为一个或以上。 四个卡扣的延伸臂构成安装槽 37 （图未示）的槽壁结构，四个卡扣的弯钩构成安装槽底部的支撑结构， 安装电路板 31 时， 首先弯钩上的缺口与电路板 31 侧边相应缺口位置的凸块卡接，同时，在缺口相对的槽壁位置处的弹片 323 给予电路板 31 的相应侧边施加与缺口方向相反的力，使弯钩上的缺口与电路板 31 侧边相应缺口位置的凹部卡接。
当拆卸电路板 31 时，只需将电路板 31 向弹片 323 的方向推，待 电路板 31 侧边相应缺口位置的凸块退出卡扣 3221 和卡扣 3222 的缺口后，即可拿出电路板 31 。
在具体实施过程中，如图所示， 电路板 31 侧边相应缺口位置的凸块与 卡扣 3222 和卡扣 3221 上的缺口卡接， 电路板 31 侧边相应缺口位置的凹块与 卡扣 3211 和卡扣 3212 上的缺口卡接。同时，电路板 31 两个缺口之间的长度与卡扣 3221 和卡扣 3222 之间的距离相等，凸块的底部与相对侧边的距离和卡扣 3221 或卡扣 3222 缺口的底部与弹片 323 所在面的垂直距离相等，并且电路板 31 上凹部底部的长度不小于卡扣 3211 或卡扣 3212 的宽度。当需要拆卸电路板 31 时，只需要将电路板 31 向弹片 323 的方向推，待电路板 31 的凸块离开卡扣的缺口后，即可上提取出电路板 31 。
如图 18 所示，弹片包括挡片 3231 和手柄 3232 。结合图 16 ，弹片与第一桥架 321 转动连接，弹片可以前后移动。 当拆卸电路板时，可通过手柄 3232 向后拉挡片 3231 ，同时，向挡片方向推电路板，待 电路板侧边相应缺口位置的凸块退出卡扣 3221 和卡扣 3222 的缺口后，即可拿出电路板。
如图 19 所示，在 平板显示装置的拆卸固定电路板支架的一个实施例中，第 一桥架 321 和第二桥架 322 相邻的一侧均向背框反面突设两个卡扣。
如图 20 所示，在 平板显示装置的拆卸固定电路板支架的一个实施例中，第 一桥架 321 和第二桥架 322 为一个整体结构。
如图 21 所示，在 平板显示装置的拆卸固定电路板支架的一个实施例中， 向背框反面突设 卡扣 3211 、卡扣 3212 、卡扣 3221 、卡扣 3222 ，这四个卡扣直接固定于 辅拼接件、主拼接件或以上组合。
如图 22 所示，在 平板显示装置的拆卸固定电路板支架的一个实施例中， 向背框反面突设 卡扣 3241 和卡扣 3242 ，卡扣 3241 和卡扣 3242 的上部为 F 型，形成固定电路板的凹部 32411 和凹部 32421 ，凹部 32411 和凹部 32421 的位置相对。卡扣 3241 和卡扣 3242 间隔 固定于 辅拼接件、主拼接件或以上组合。且卡扣 3241 和卡扣 3242 之间的距离等于电路板的长度或宽度。卡扣 3241 和卡扣 3242 为弹性材料，可沿凹部 32411 和凹部 32421 的方向摆动。
具体操作为，可以如图中的箭头方向向外掰卡扣 3241 和卡扣 3242 ，将电路板 31 一侧插入凹部 32411 ，另一侧插入凹部 32421 ，停止用力，即可完成电路板 31 的固定。当需要拆卸电路板 31 时，同样 如图中的箭头方向向外掰卡扣 3241 和卡扣 3242 ，取出电路板 31 即可。
在其它实施例中，卡扣 3241 和卡扣 3242 的基部也可以通过支架固定连接。
在其它实施例中，凹部 32411 和凹部 32421 的方向相反，其方向所在的直线在同一水平面上平行。
如图 23 所示，在 平板显示装置的拆卸固定电路板支架的一个实施例中， 向背框反面突设 卡扣 3251 和卡扣 3252 ，卡扣 3251 和卡扣 3252 的上部为 F 型，形成固定电路板的凹槽 32511 和凹槽 32521 。凹槽 32511 和凹槽 32521 的方向相反，其方向所在的直线在同一水平面上平行，同时在凹槽的上部拼接设置一手杆 32512 和手杆 32522 ，方向与卡扣垂直，手杆 32512 与卡扣 3251 转动连接，手杆 32522 卡扣 3252 转动连接，因此，手杆 32512 可以上下移动。卡扣 3251 和卡扣 3252 间隔 固定于 辅拼接件、主拼接件或以上组合。
具体操作为，可以如图中的箭头方向移动手杆，当向上拉起手杆 32512 和手杆 32522 时，将电路板 31 插入，再向下压紧手杆 32512 和手杆 32522 ，以固定电路板 31 。当需要拆卸电路板 31 时， 向上拉起手杆 32512 和手杆 32522 ，取出电路板 31 即可。
在其它实施例中，卡扣 3251 和卡扣 3252 的基部也可以通过支架固定连接。
如图 24 所示， 在 平板显示装置的拆卸固定电路板支架的一个实施例中，主框架上设置两个桥架， 每一桥架远离另一桥架的一侧均向背框正面突设两个卡扣。如图所示， 第一桥架 321 上 设置 卡扣 3251 和卡扣 3252 ，第二桥架 322 设置卡扣 3253 和卡扣 3254 ，卡扣和桥架之间为转动连接，卡扣可以沿着与桥架的连接点 360 度转动。
在具体操作过程中，当需要固定电路板 31 时，首先将电路板 31 放于第一桥架 321 和第二桥架 322 之间，电路板 31 的两边分别与第一桥架 321 和第二桥架 322 接触，然后将卡扣 3251 和卡扣 3253 向远离对方的方向转动，同样，将卡扣 3252 和卡扣 3254 向远离对方的方向转动，放入电路板 31 ，再将卡扣 3251 和卡扣 3253 向靠近对方的方向移动，同样，将卡扣 3252 和卡扣 3254 向靠近对方的方向转动，以固定电路板 31 。
当需要拆卸电路板时，将卡扣 3251 和卡扣 3253 向远离对方的方向转动，同样，将卡扣 3252 和卡扣 3254 向远离对方的方向转动，取出电路板 31 即可。
综上所述，如图 16-24 所示，通过在背板上设置不同形状的支架，可以方便拆卸安装电路板，节省时间，同时，支架可以固定于辅拼接件、主拼接件或以上组合。
如图 25 所示，本发明还提供一种制造平板显示装置的背光系统的方法，该方法包括以下步骤：
步骤 401 ，制作背框的主拼接件和辅拼接件，主拼接件的数量为至少两个；
步骤 402 ，拼接至少两个主拼接件而形成背框的主框架；
步骤 403 ，将辅拼接件拼接于主框架内；
步骤 404 ，将电路板可拆卸固定于背框上。
其中， 制作背框的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。
拼接至少两个主拼接件而形成背框的主框架的步骤包括：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 26 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：背光系统 21 以及上述的显示面板 22 ，背光系统 21 设置于显示面板 22 的背面，并且为显示面板 22 提供光源。
背光系统 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 。在背光系统 21 为侧光式时，匀光机构 24 是导光板；在背光系统 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 27 所示，立体显示装置 30 包括液晶透镜光栅 41 、背光系统 42 以及显示面板 43 。其中，液晶透镜光栅 41 设置于显示面板 43 的出光面上。背光系统 42 为上述各实施例的背光系统，比如背光系统 42 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 28 所示，等离子显示装置 40 包括等离子显示面板 51 以及背框 52 ，背框 52 设置在等离子显示面板 51 的背面。其中，背框 52 为上述各实施例的背框，在此也不再赘述 。
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 (16)

  1. 一种平板显示装置的背光系统，其特征在于：
    所述背光系统包括背框和电路板；
    所述背框包括主拼接件和辅拼接件；
    所述主拼接件的数量为至少两个，所述至少两个主拼接件以拼接形式进行连接；
    所述辅拼接件设置于背框内并与背框拼接；
    所述电路板可拆卸固定于背框上。
  2. 根据权利要求 1 所述的背光系统，其特征在于：
    所述背光系统包括固定于辅拼接件、主拼接件或以上组合的支架，所述电路板可拆卸固定于支架上。
  3. 根据权利要求 2 所述的背光系统，其特征在于：
    所述支架包括安装槽和卡扣，所述电路板收容于安装槽内，并由所述卡扣可拆卸固定。
  4. 根据权利要求 3 所述的背光系统，其特征在于：
    所述支架包括第一桥架和第二桥架，所述第一桥架和第二桥架平行间隔地搭设于辅拼接件和主拼接件之间、两个主拼接件之间或两个辅拼接件之间；
    每一所述桥架邻近另一桥架的一侧均向背框正面或均向反面突设有两卡扣，每一所述卡扣包括自桥架一侧边突出的延伸臂和在延伸臂末端弯折的弯钩，四个所述延伸臂构成安装槽的槽壁结构，四个所述弯钩构成安装槽底部的支撑结构；
    四个所述槽壁的同一侧边均设有卡接电路板的缺口，所述电路板侧边相应缺口的位置设有与缺口卡接的凸块；
    与所述缺口相对的槽壁位置处设有弹片，所述弹片给予电路板的响应侧边施加与缺口方向相反的力。
  5. 根据权利要求 4 所述的背光系统，其特征在于：
    所述弹片自一桥架侧边突出，并且末端设有弯钩。
  6. 根据权利要求 1 所述的背光系统，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。
  7. 根据权利要求 6 所述的背光系统，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。
  8. 根据权利要求 7 所述的背光系统，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。
  9. 根据权利要求 6 所述的背光系统，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相应位置设有沿第二主拼接件长度方向上间隔排列的凸起，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。
  10. 根据权利要求 6 所述的背光系统，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。
  11. 根据权利要求 10 所述的背光系统，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。
  12. 根据权利要求 11 所述的背光系统，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。
  13. 根据权利要求 11 所述的背光系统，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。
  14. 一种制造平板显示装置的背光系统的方法，其特征在于：
    制作背框的主拼接件和辅拼接件，所述主拼接件的数量为至少两个；
    拼接所述至少两个主拼接件而形成背框的主框架；
    将所述辅拼接件拼接于主框架内；
    将所述电路板可拆卸固定于背框上，所述电路板及其可拆卸固定方式如权利要求 1所述。
  15. 根据权利要求 14 所述的方法，其特征在于：
    所述制作背框的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；
    所述拼接至少两个主拼接件而形成背框的主框架的步骤包括：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。
  16. 根据权利要求 15 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。
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