WO2013071610A1 - 平板显示装置的背框以及背光系统 - Google Patents

平板显示装置的背框以及背光系统 Download PDF

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Publication number
WO2013071610A1
WO2013071610A1 PCT/CN2011/082795 CN2011082795W WO2013071610A1 WO 2013071610 A1 WO2013071610 A1 WO 2013071610A1 CN 2011082795 W CN2011082795 W CN 2011082795W WO 2013071610 A1 WO2013071610 A1 WO 2013071610A1
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WO
WIPO (PCT)
Prior art keywords
back frame
bracket
splicing
assembling piece
primary assembling
Prior art date
Application number
PCT/CN2011/082795
Other languages
English (en)
French (fr)
Inventor
黄冲
萧宇均
郭仪正
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.)
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Publication date
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 US13/380,834 priority Critical patent/US8801264B2/en
Publication of WO2013071610A1 publication Critical patent/WO2013071610A1/zh

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    • 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

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a back frame of a flat panel display device 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, you need to set different back frame molds according to different size LCD panels.
  • FIG. 1 is a schematic structural diagram of a back frame of a liquid crystal display device in the prior art.
  • the prior art back frame 10 The monolithic back frame is usually used to produce the integral back frame 10 by metal stamping or plastic injection.
  • the integral back frame 10 requires excessive material consumption and high material cost.
  • the large size of the back frame 10 Larger punching equipment is required, and the corresponding mold of the back frame 10 is large in size, complicated in structure, and high in 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 and a backlight system of a flat panel display device, which can reduce material cost and mold cost.
  • a technical solution adopted by the present invention is to provide a back frame of a flat panel display device, comprising at least two splicing members, the at least two splicing members are spliced to form a back frame, and the back frame further includes a splicing member.
  • At least two through holes are disposed on the bracket at intervals along the longitudinal direction of the bracket, and the back frame further includes a fixing member, and the fixing member may be disposed in any one of the at least two through holes, and The bracket is fixed to the splicing piece.
  • a strip-shaped through hole is disposed on the bracket along the longitudinal direction of the bracket, and the back frame further includes a fixing member, and the fixing member can be disposed at different positions in the strip-shaped through hole, and the bracket is fixed to the assembling piece. on.
  • the bracket includes at least two bracket assemblies that are spliced to form a bracket, wherein at least one of the bracket assemblies can be secured to at least two different positions of the other bracket assembly along the length of the bracket.
  • the other bracket assembly is provided with at least two through holes spaced along the length direction of the bracket, and the bracket further includes a fixing member, and the fixing member may be disposed in any one of the at least two through holes. And securing the other bracket assembly to the at least one bracket assembly.
  • the other bracket assembly is provided with a strip-shaped through hole along the length direction of the bracket, and the bracket further includes a fixing member, and the fixing member can be disposed at different positions in the strip-shaped through hole, and the other A bracket assembly is secured to the at least one bracket assembly.
  • the back frame includes at least two primary assembling pieces, the at least two primary assembling pieces are joined to form a main frame of the back frame, and the at least two primary assembling pieces comprise a first primary assembling piece and a second main assembly.
  • a splicing member wherein one end of the first primary splicing member is provided with at least two splicing portions spaced along the length direction of the first primary splicing member, and the structure of each splicing portion is adapted to the end of the corresponding second primary splicing member
  • the first primary assembling piece is spliced with one end of the corresponding second primary assembling piece through a joint portion thereof.
  • the joint portion is a recess provided on a surface of the first primary assembling piece and adapted to an end of the second primary assembling piece to receive one end of the second primary assembling piece.
  • the joint portion is a concave portion provided on the surface of the first primary assembling piece, and the surface of the second primary assembling piece is provided with a protrusion corresponding to the surface, and the protrusion is embedded in the concave portion to splicing the first primary assembling piece and the first Two main assembly pieces.
  • 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 back described above. frame.
  • the beneficial effects of the present invention are: different from the prior art, the back frame and the backlight system of the flat panel display device disclosed by the present invention are formed by using a splicing piece to form a back frame, so that the mold structure of the back frame is simple, and the back frame is reduced.
  • the cost of the mold and the material of the back frame are saved to reduce the production cost of the flat panel display device.
  • the fixing position of the bracket and the splicing piece to be adjustable along the length direction of the bracket, the same bracket can meet different installation requirements, and the production cost of the flat panel display device can be further reduced.
  • 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 of the joint portion shown in 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.
  • Figure 16 is a flowchart of a method of manufacturing a back frame of a flat panel display device in accordance with 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 a partial structural schematic view of a back frame of a flat panel display device according to an eighteenth embodiment of the present invention.
  • Figure 21 is an enlarged schematic view showing the joint of the bracket assembly and the splicing member of the back frame shown in Figure 20;
  • Figure 22 is a cross-sectional view of the joint of the bracket assembly and the splicing member of the back frame shown in Figure 20;
  • FIG. 23 is an enlarged schematic view showing a joint of another bracket assembly of the back frame shown in FIG. 20 and another splicing member;
  • Figure 24 is a cross-sectional view of the joint of another bracket assembly of the back frame of Figure 20 with another splicing member;
  • Figure 25 is an enlarged schematic view showing the junction of the two bracket assemblies of the back frame shown in Figure 20;
  • Figure 26 is a cross-sectional view of the junction of the two bracket assemblies of the back frame shown in Figure 20;
  • Figure 27 is a partial structural schematic view of a back frame of a flat panel display device in accordance with a nineteenth 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 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.
  • at least two protrusions, such as two, three or four, etc., arranged along the length direction of the second primary assembling piece 232 may be disposed on one end of the second primary assembling piece 232.
  • 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 the second main splice member 232 One end moves on the splice portions 2311, 2312. For example, after the end of the second primary assembling piece 232 passes through the joint portion 2312 and is spliced and fixed, 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 splice portions, the structure of which is the same as that of the splice portions 2311, 2312; and in the second main stitching Both ends of the member 232 and the two ends of the fourth primary assembling member 234 are correspondingly designed or not designed corresponding to different situations, such as:
  • the two ends of the second primary assembling piece 232 and the two ends of the fourth primary assembling piece 234 may not be designed any, that is, the ends are identical in structure to other parts.
  • the different splicing portions 2311 (2312) at one end of the first primary assembling piece 231 are selected for splicing (the other end is also processed)
  • the width of the back frame 23 is correspondingly changed
  • the length of the splicing member 234 is also selected accordingly.
  • the second primary splicing member 232 and the fourth primary splicing member 234 are not cut, or the cut portion is shorter; if the selection is farther away from the first
  • the second main splicing piece 232 and the fourth main splicing piece 234 are both cut, according to the distance of the splicing part from the end of the first main splicing piece 231, and the cutting is performed.
  • the part is also longer or shorter;
  • 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, wherein the module of the back frame is provided with a main pattern for forming a main assembling piece of the back frame, and the main pattern is provided with one end for the main assembling piece A sub-pattern of at least two splices is formed.
  • 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 Manufacture 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 of each joint is matched with one end of the corresponding second primary assembling piece.
  • Step 502 Select a joint portion of the at least two joint 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 bracket that can be applied to the back frame disclosed in the above embodiments, wherein the bracket can be fixed to the splicing member, and the splicing member can be fixed to at least two different brackets along the length direction of the bracket. Position, so that the bracket can be moved, so that the position of the convex hull provided for positioning on the bracket can be adjusted to meet different assembly requirements of the back frame.
  • the bracket 60 is formed by splicing the bracket assemblies 601 and 602, and the two ends of the bracket 60 are respectively fixed to the splicing members 61 and 62.
  • the splicing members 61, 62 may be fixed to at least two different positions of the bracket 60 along the length of the bracket 60, wherein the splicing members 61, 62 may be the primary splicing member or the secondary splicing member in the above embodiments.
  • the bracket 60 may be fixed to the splice member at one end and suspended at the other end, and the bracket 60 may also be of an integral design.
  • a strip-shaped through hole 6011 is provided on the bracket assembly 601 along the longitudinal direction of the bracket 60.
  • the bracket assembly 601 is fixed to the splicing member 61 of the back frame by screws 63.
  • the screws 63 may be disposed at different positions of the strip-shaped through holes 6011. Therefore, at the time of installation, the strip-shaped through hole 6011 is overlapped with the screw hole 611 of the splicing piece 61, and the position of the bracket assembly 601 on the splicing piece 61 is adjusted along the length direction of the bracket 60 according to the installation requirement, thereby adjusting the bracket assembly 601.
  • a strip-shaped through hole 6021 is disposed along the longitudinal direction of the bracket 60, and the screw 64 can be disposed through the strip.
  • the position of the hole 6021 is fixed to the splicing member 62 by locking the screw 64 into the screw hole 621 of the splicing member 62, thereby realizing the positional adjustment of the cinnar bag 6022 with respect to the splicing member 62.
  • a strip-shaped through hole 6013 is provided on the bracket assembly 601 along the length direction of the bracket 60, and the bracket assembly 602 is provided on the bracket assembly 602.
  • a strip-shaped through hole 6023 is provided in the longitudinal direction of the bracket 60.
  • the bracket assembly 601 is secured to the bracket assembly 602 by screws 65.
  • the screws 65 may be disposed at different positions of the strip-shaped through holes 6013 and 6023.
  • the strip-shaped through holes 6013, 6023 are overlapped, and the positions of the bracket assemblies 601 and 602 are adjusted along the length direction of the bracket 60 according to the installation requirements, and the adjustment convex hulls 6012, 6022 are opposed to the splicing members 61, 62 (see The position of Figure 20) and the length of the bracket 60.
  • the screws 65 are placed to the respective positions of the strip-shaped through holes 6013 and 6023 and locked to fix the bracket assembly 601 to the bracket assembly 602.
  • the screws 63, 64, 65 may be replaced by other fasteners such as rivets or bolts.
  • At least two through holes are provided on the bracket at intervals in the longitudinal direction of the bracket instead of the strip through holes of the above embodiment.
  • a plurality of through holes 7014, 7015, and 7016 are provided along the longitudinal direction of the bracket 70. Screws (not shown) may be disposed in one of the through holes 7014, 7015, 7016 and locked in the screw holes 711 of the splicing member 71, thereby fixing the bracket assembly 701 to the splicing member 71, thereby achieving convexity.
  • the position of the bag 7012 relative to the splice member 71 is adjusted.
  • a plurality of through holes 7024, 7025, 7026 are provided along the longitudinal direction of the bracket 70. Screws (not shown) may be disposed in one of the through holes 7024, 7025, 7026 and locked in the screw holes 721 of the splicing member 72 to fix the bracket assembly 702 to the splicing member 72, thereby achieving convexity. Position adjustment of the package 7022 relative to the splicing member 72
  • a plurality of through holes 7017, 7018, 7019 are arranged on the bracket assembly 701 along the length direction of the bracket 70, and along the bracket 70 on the bracket assembly 702.
  • a plurality of through holes 7027, 7028, and 7029 are provided in the longitudinal direction.
  • a screw (not shown) may be disposed in any one of the plurality of through holes 7017, 7018, and 7019 and any one of the plurality of through holes 7027, 7028, and 7029.
  • the positions of the bracket assemblies 701 and 702 are adjusted along the length of the bracket according to the installation requirements, and the corresponding through holes are overlapped, and the positions of the adjustment convex hulls 7012, 7022 with respect to the splicing members 71, 72 and the bracket 70 are length.
  • the screws are placed into the corresponding through hole overlap positions and locked to secure the bracket assembly 701 to the bracket assembly 702.
  • the bracket is fixed to the splicing member by means of a screw.
  • those skilled in the art can easily associate the fixing member with a rivet or the like for fixing, which is not specifically limited in the present invention.
  • the back frame and the backlight system of the flat panel display device of the present invention form a back frame by using a splicing piece, so that the mold structure of the back frame is simple, the cost of the back frame mold is reduced, and the material of the back frame is saved, thereby reducing the flat plate.
  • the production cost of the display device Further, by setting the fixing position of the bracket and the splicing piece to be adjustable along the length direction of the bracket, the same bracket can meet different installation requirements, and the production cost of the flat panel display device can be further reduced.

Abstract

一种平板显示装置（20）的背框（23）及背光系统（21）。该背框（23）包括至少两个拼接件（61，62），该至少两个拼接件（61，62）拼接形成背框（23），该背框（23）进一步包括与拼接件（61，62）相互固定的支架（60），其中拼接件（61，62）可沿支架（60）的长度方向固定于支架（60）的至少两个不同位置。通过利用拼接件（61，62）拼接形成背框（23），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，以降低生产成本。进一步，通过将支架（60）与拼接件（61，62）的固定位置设置成沿支架（60）的长度方向可调，可以使得同一支架（60）能够满足不同的安装需求，进一步降低生产成本。

Description

平板显示装置的背框以及背光系统
【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以及背光系统。
【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平板显示装置的背框以及背光系统，能够降低材料成本和模具成本。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种平板显示装置的背框，包括至少两个拼接件，该至少两个拼接件拼接形成背框，背框进一步包括与拼接件相互固定的支架，其中拼接件可沿支架的长度方向固定于支架的至少两个不同位置。
根据本发明一优选实施例，支架上沿支架的长度方向间隔设置有至少两个贯穿孔，背框进一步包括固定件，固定件可设置于该至少两个贯穿孔中的任意一个中，并将支架固定于拼接件上。
根据本发明一优选实施例，支架上沿支架的长度方向设置有条状贯穿孔，背框进一步包括固定件，固定件可设置于条状贯穿孔中的不同位置，并将支架固定于拼接件上。
根据本发明一优选实施例，支架包括至少两个支架组件，该至少两个支架组件拼接形成支架，其中至少一支架组件可沿支架的长度方向固定于另一支架组件的至少两个不同位置。
根据本发明一优选实施例，该另一支架组件上沿支架的长度方向间隔设置有至少两个贯穿孔，支架进一步包括固定件，固定件可设置于该至少两个贯穿孔中的任意一个中，并将该另一支架组件固定于该至少一支架组件上。
根据本发明一优选实施例，该另一支架组件上沿支架的长度方向设置有条状贯穿孔，支架进一步包括固定件，固定件可设置于条状贯穿孔中的不同位置，并将该另一支架组件固定于该至少一支架组件上。
根据本发明一优选实施例，背框包括至少两个主拼接件，该至少两个主拼接件拼接形成背框的主框架，该至少两个主拼接件包括第一主拼接件和第二主拼接件，其中第一主拼接件的一端设有沿第一主拼接件的长度方向上间隔排列的至少两个拼接部，每个拼接部的结构与相应的第二主拼接件的一端适配，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。
根据本发明一优选实施例，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。
根据本发明一优选实施例，拼接部是第一主拼接件表面上设置的凹部，第二主拼接件的表面相应位置设有凸起，凸起嵌入凹部，以拼接第一主拼接件和第二主拼接件。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种背光系统，其包括光源、匀光机构以及背框；背框承载光源和匀光机构，该背框为上所述的背框。
本发明的有益效果是：区别于现有技术的情况，本发明所揭示的平板显示装置的背框以及背光系统通过利用拼接件拼接形成背框，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。进一步，通过将支架与拼接件的固定位置设置成沿支架的长度方向可调，可以使得同一支架能够满足不同的安装需求，进一步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平板显示装置的背框中拼接部的结构示意图；
图10是图9所示的拼接部的截面示意图；
图11是根据本发明第九实施例的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背框的局部结构示意图；
图21是图20所示的背框的支架组件与拼接件的结合处的放大示意图；
图22是图20所示的背框的支架组件与拼接件的结合处的剖视图；
图23是图20所示的背框的另一支架组件与另一拼接件的结合处的放大示意图；
图24是图20所示的背框的另一支架组件与另一拼接件的结合处的剖视图；
图25是图20所示的背框的两个支架组件的结合处的放大示意图；
图26是图20所示的背框的两个支架组件的结合处的剖视图；
图27是根据本发明第十九实施例的平板显示装置的背框的局部结构示意图。
【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的一端上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所示，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所示，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。
在实际应用中，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；而在第二主拼接件232的两端和第四主拼接件234的两端，对应于不同的情况，也相应进行设计或不设计，比如：
1）第一种情况，如图10所示，第二主拼接件232的两端和第四主拼接件234的两端可以不进行任何设计，即端部与其他部位的结构相同，这时候在选择第一主拼接件231一端的不同拼接部2311（2312）进行拼接时（另一端同样处理），若想背框23的宽度相应变化，则相应的第二主拼接件232和第四主拼接件234的长度也作相应的选择。即，若选邻近第一主拼接件231一端的拼接部2311进行拼接，则不对第二主拼接件232和第四主拼接件234进行裁剪，或裁剪掉的部分较短；若选择较远离第一主拼接件231一端的拼接部2312进行拼接时，则对第二主拼接件232和第四主拼接件234均进行裁剪，按照拼接部距离第一主拼接件231一端的远近，裁剪掉的部分也较长或较短；
2）第二种情况，类似前述第一种情况，如图11所示，只不过第二主拼接件232和第四主拼接件234以不同的凸起来分别与第一主拼接件231和第三主拼接件233配合，实现背框23的宽度变化；同样，若选择除离第一主拼接件231一端最近的第一拼接部2311之外的其他拼接部2312进行拼接时，在拼接后或拼接前，将多出的第二主拼接件232和第四主拼接件234部分进行裁剪。
以上情况也适用于仅用两个L形主拼接件进行拼接而得到背框23的主框架27。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，该背框的模组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。
步骤502：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18所示，立体显示装置30包括液晶透镜光栅31、背光系统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。背光系统32为上述各实施例的背光系统，比如背光系统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。
本发明还提供一种可应用于上述各实施例所揭示的背框的支架，其中，该支架可与上述的拼接件相互固定，拼接件可沿支架的长度方向固定于支架的至少两个不同位置，从而可以移动支架，使得支架上设置的用于定位的凸包位置可调，从而满足背框的不同装配需求。
具体而言，如图20所示，在本实施例中，支架60由支架组件601、602拼接而成，支架60的两端分别固定于拼接件61、62上。拼接件61、62可沿支架60的长度方向固定于支架60的至少两个不同位置，其中，拼接件61、62可以是上述各实施例中的主拼接件或辅拼接件。在其他备选实施例中，支架60可以仅一端固定于拼接件上，另一端悬空设置，且支架60也可以是一体设计。
进一步如图21-22所示，在支架组件601与拼接件61相互固定的端部，在支架组件601上沿支架60的长度方向上设置有条状贯穿孔6011。支架组件601通过螺钉63固定在背框的拼接件61上。螺钉63可以设置于条状贯穿孔6011的不同位置。因此，在安装时，将条状贯穿孔6011与拼接件61的螺孔611重叠，并根据安装需要沿支架60的长度方向调节支架组件601在拼接件61上的位置，进而调节支架组件601的凸包6012相对于拼接件61的位置。在将支架组件601的凸包6012调节到适当位置后，将螺钉63设置到条状贯穿孔6011的相应位置，并锁定到拼接件61的螺孔611中，进而并将支架组件601固定到拼接件61上。
同理，进一步如图23-24所示，在支架组件602的与拼接件62相互固定的端部，沿支架60的长度方向上设置有条状贯穿孔6021，可以设置螺钉64于条状贯穿孔6021的不同位置，并通过将螺钉64锁定到拼接件62的螺孔621内，进而将支架组件602固定于拼接件62上，由此实现凸包6022相对拼接件62的位置调节。
进一步如图25-26所示，在支架组件601与支架组件602相互固定的端部，在支架组件601上沿支架60的长度方向上设置有条状贯穿孔6013，而在支架组件602上沿支架60的长度方向上设置有条状贯穿孔6023。支架组件601通过螺钉65固定于支架组件602。其中，螺钉65可设置于条状贯穿孔6013、6023的不同位置。在安装时，将条状贯穿孔6013、6023重叠，并根据安装需要沿支架60的长度方向调节支架组件601和602的位置，而进调节凸包6012、6022相对于拼接件61、62（见图20）的位置以及支架60的长度。在位置调节后，将螺钉65设置到条状贯穿孔6013和6023的相应位置，并进行锁定，以将支架组件601固定到支架组件602上。在其他备选实施例中，螺钉63、64、65可以由铆钉或螺栓等其他固定件代替。
如图27所示，在本实施例中，在支架上沿支架的长度方向间隔设置有至少两个贯穿孔来取代上述实施例的条状贯穿孔。具体而言，在支架组件701的与拼接件71相互固定的端部，沿支架70的长度方向上设置有多个贯穿孔7014、7015、7016。螺钉（未绘示）可以设置于贯穿孔7014、7015、7016中的一者内，并锁定于拼接件71的螺孔711内，从而将支架组件701固定于拼接件71上，由此实现凸包7012相对拼接件71的位置调节。
同样地，在支架组件702的与拼接件72相互固定的端部，沿支架70的长度方向上设置有多个贯穿孔7024、7025、7026。螺钉（未绘示）可以设置于贯穿孔7024、7025、7026中的一者内，并锁定于拼接件72的螺孔721内，从而将支架组件702固定于拼接件72上，由此实现凸包7022相对拼接件72的位置调节
另外，在支架组件701与支架组件702相互固定的端部，在支架组件701上沿支架70的长度方向上设置有多个贯穿孔7017、7018、7019，而在支架组件702上沿支架70的长度方向上设置有多个贯穿孔7027、7028、7029。螺钉（未绘示）可设置于多个贯穿孔7017、7018、7019中的任意一者与多个贯穿孔7027、7028、7029的任意一者内。在安装时，根据安装需要沿支架的长度方向调节支架组件701和702的位置，并将对应的贯穿孔重叠，而进调节凸包7012、7022相对于拼接件71、72的位置以及支架70的长度。在位置调节后，将螺钉设置到对应的贯穿孔重叠位置上，并进行锁定，以将支架组件701固定到支架组件702上。
以上实施方式中，利用螺钉将支架固定于拼接件，但本领域技术人员也可以轻易联想到可用铆钉等固定件进行固定，本发明对此不作具体限定。
通过上述方式，本发明平板显示装置的背框及背光系统通过利用拼接件拼接形成背框，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。进一步，通过将支架与拼接件的固定位置设置成沿支架的长度方向可调，可以使得同一支架能够满足不同的安装需求，进一步降低平板显示装置的生产成本。
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 (10)

  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拼接件，所述至少两个拼接件拼接形成所述背框，所述背框进一步包括与所述拼接件相互固定的支架，其中所述拼接件可沿所述支架的长度方向固定于所述支架的至少两个不同位置。
  2. 根据权利要求1所述的背框，其特征在于：所述支架上沿所述支架的长度方向间隔设置有至少两个贯穿孔，所述背框进一步包括固定件，所述固定件可设置于所述至少两个贯穿孔中的任意一个中，并将所述支架固定于所述拼接件上。
  3. 根据权利要求1所述的背框，其特征在于：所述支架上沿所述支架的长度方向设置有条状贯穿孔，所述背框进一步包括固定件，所述固定件可设置于所述条状贯穿孔中的不同位置，并将所述支架固定于所述拼接件上。
  4. 根据权利要求1所述的背框，其特征在于：所述支架包括至少两个支架组件，所述至少两个支架组件拼接形成所述支架，其中至少一支架组件可沿所述支架的长度方向固定于另一支架组件的至少两个不同位置。
  5. 根据权利要求4所述的背框，其特征在于：所述另一支架组件上沿所述支架的长度方向间隔设置有至少两个贯穿孔，所述支架进一步包括固定件，所述固定件可设置于所述至少两个贯穿孔中的任意一个中，并将所述另一支架组件固定于所述至少一支架组件上。
  6. 根据权利要求4所述的背框，其特征在于：所述另一支架组件上沿所述支架的长度方向设置有条状贯穿孔，所述支架进一步包括固定件，所述固定件可设置于所述条状贯穿孔中的不同位置，并将所述另一支架组件固定于所述至少一支架组件上。
  7. 根据权利要求1所述的背框，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拼接形成所述背框的主框架，所述至少两个主拼接件包括第一主拼接件和第二主拼接件，其中所述第一主拼接件的一端设有沿所述第一主拼接件的长度方向上间隔排列的至少两个拼接部，每个拼接部的结构与相应的所述第二主拼接件的一端适配，所述第一主拼接件通过其一拼接部与相应的所述第二主拼接件的一端拼接。
  8. 根据权利要求7所述的背框，其特征在于：所述拼接部是所述第一主拼接件表面上设置的形状与所述第二主拼接件的一端适配的凹部，以收容所述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：所述拼接部是所述第一主拼接件表面上设置的凹部，所述第二主拼接件的表面相应位置设有凸起，所述凸起嵌入所述凹部，以拼接所述第一主拼接件和所述第二主拼接件。
  10. 一种背光系统，其特征在于：
    所述背光系统包括光源、匀光机构以及背框；
    所述背框承载所述光源和匀光机构，所述背框为权利要求1所述的背框。
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