CN202349919U

CN202349919U - Back frame and backlight system

Info

Publication number: CN202349919U
Application number: CN201120463608XU
Authority: CN
Inventors: 郭仪正; 萧宇均; 黄冲; 程加河; 阙成文; 李全; 杨流洋
Original assignee: Shenzhen China Star Optoelectronics Technology Co Ltd
Current assignee: TCL China Star Optoelectronics Technology Co Ltd
Priority date: 2011-11-18
Filing date: 2011-11-18
Publication date: 2012-07-25
Anticipated expiration: 2021-11-18

Abstract

The utility model provides a back frame of a flat plate display device and a backlight system. The back frame comprises main splicing pieces, auxiliary splicing pieces and a bracket which is used for fixing a circuit board, wherein the main splicing pieces are spliced through splicing parts; the splicing parts of the main splicing pieces have reinforcing structures; and the circuit board is clamped and fixed by using the bracket, and the position of the circuit board is adjustable. The utility model also provides the backlight system. The utility model has the advantages that the back frame is simple in structure, the cost of a back frame mold can be reduced, the intensity of the back frame meets requirements, the circuit board can be fixed, materials of the back frame are saved, and the production cost of the flat plate display device is reduced.

Description

Back of the body frame and back light system

Technical field

The utility model relates to the Display Technique field, particularly relates to a kind of back of the body frame and back light system of panel display apparatus.

Background technology

Liquid crystal indicator comprises preceding frame, panel and module backlight in the prior art, and module wherein backlight comprises back of the body frame, reflector plate, LGP and lamp group etc.

At present, multiple size of display panels is arranged to satisfy people's different demands on the market.For example in TV domain, the size of liquid crystal panel comprises 31.5,42,46,48 or 55 cun, and different back of the body frame moulds need be set according to the liquid crystal panel of different size.

See also Fig. 1, Fig. 1 is the back of the body mount structure sketch map of liquid crystal indicator in the prior art.As shown in Figure 1, back of the body frame 10 all adopts all-in-one-piece back of the body frame in the prior art, produces all-in-one-piece back of the body frame 10 through metal stamping or plastics injection system usually, and all-in-one-piece back of the body frame 10 needs to consume too much material, and material cost is high.Large-sized in addition back of the body frame 10 needs to use bigger pressing equipment, and the die size of back of the body frame 10 correspondences is very big, complex structure, and the cost of back of the body frame mould is high.Therefore the back of the body frame cost of prior art is high.

The utility model content

The technical problem that the utility model mainly solves provides a kind of back of the body frame and back light system, can reduce material cost and die cost, help making the intensity of back of the body frame to reach requirement, help fixing circuit board.

For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of back of the body frame of panel display apparatus is provided, and back of the body frame comprises main splice, auxilliary splice and the support that is used for fixing circuit board; The quantity of main splice is at least two, and an end of at least one main splice is provided with the stitching section, and at least two main splices splice through the stitching section, connects with connecting method between auxilliary splice and the main splice; The stitching section of one of them main splice is provided with the reinforcement structure; Support comprises that rack body, first portion, first of dangling sets off the portion and the first elasticity turnover portion; Rack body is fixed on main splice or the auxilliary splice; Or be fixed in simultaneously on main splice and the auxilliary splice; Wherein the optional fixing point between rack body and main splice or the auxilliary splice is provided with at least two, so that rack body is arranged at the diverse location of back of the body frame alternatively; First portion of dangling extends from the length direction of rack body to rack body; First set off portion and rack body at interval and from first dangle portion to first dangle portion length direction extend; The first elasticity turnover portion be positioned at first set off between portion and the rack body and from first dangle portion to first dangle portion the length direction turnover, first sets off the first side edge of the portion and the first elasticity turnover portion resilient clamp circuit board.

According to the utility model one preferred embodiment, at least two main splices comprise the first main splice and the second main splice.

According to the utility model one preferred embodiment, the stitching section is the shape that is provided with on the first main splice surface and the adaptive recess of an end of the second main splice, to accommodate an end of the second main splice.

According to the utility model one preferred embodiment; The concave bottom of the first main splice is provided with first through hole; The relevant position of the second main splice is provided with second through hole; Back of the body frame comprises fixture, and fixture passes first through hole and second through hole with the first main splice and the second main splice splicing.

According to the utility model one preferred embodiment, the stitching section is the recess that is provided with on the first main splice surface, and the surperficial relevant position of the second main splice is provided with convexity, and the protruding recess that embeds is to splice the first main splice and the second main splice.

According to the utility model one preferred embodiment, the cross section of each main splice in the stitching section is broken line shape, strengthens structure to form, and broken line shape comprises at least two continuous line segments, and the reinforcement structure of two main splices is concavo-convex stacked.

According to the utility model one preferred embodiment, the cross section of each main splice in the stitching section is arc, form to strengthen structure, and the reinforcement structure of two main splices is concavo-convex stacked.

According to the utility model one preferred embodiment, the length direction of rack body upper edge rack body is arranged at intervals with at least two through holes, and auxilliary splice can be arranged among any in two through holes at least, and rack body is fixed on the auxilliary splice.

According to the utility model one preferred embodiment; Support comprises at least two bracket components; Wherein at least one bracket component is fixed in main splice along the length direction of support; The length direction of another bracket component upper edge support is arranged at intervals with at least two through holes, and main splice can be arranged among any in two through holes at least.

According to the utility model one preferred embodiment; Support comprises that further second portion, second of dangling sets off the portion and the second elasticity turnover portion; Second dangle portion and first portion of dangling is provided with at interval; And extend from the length direction of rack body to rack body; Second set off portion and rack body at interval and from second dangle portion to second dangle portion length direction extend, the second elasticity turnover portion be positioned at second set off between portion and the rack body and from second dangle portion to second dangle portion the length direction turnover, second sets off the portion and the second elasticity turnover portion resilient clamp circuit board.

According to the utility model one preferred embodiment, the first side edge of two bracket component clamping circuit boards and the diverse location of second side edge.

According to the utility model one preferred embodiment, rack body be stairstepping and bridge between two main splices, between two auxilliary splices or between main splice and the auxilliary splice.

According to the utility model one preferred embodiment, back of the body frame comprises the 3rd main splice and the 4th main splice; The first main splice, the second main splice, the 3rd main splice and the 4th main splice are all vertical bar shaped, and the head and the tail splicing, with the rectangle main frame around formation back of the body frame.

According to the utility model one preferred embodiment; Auxilliary splice comprises the first auxilliary splice and the second auxilliary splice; The two ends of the first auxilliary splice respectively with the first main splice, the second main splice, the 3rd main splice and the 4th main splice at least two main splices splicings, the two ends of the second auxilliary splice respectively with the first main splice, the second main splice, the 3rd main splice and the 4th main splice at least two main splices splicings.

According to the utility model one preferred embodiment, the two ends of the first auxilliary splice respectively with the first main splice, the second main splice splicing of adjacent setting, splice with the 3rd main splice of adjacent setting, the 4th main splice at the two ends of the second auxilliary splice; Or splice with the first main splice that is oppositely arranged, the 3rd main splice respectively at the two ends of the first auxilliary splice; The two ends of the second auxilliary splice and the first main splice that is oppositely arranged, the 3rd main splice splicing laterally arrange between the second main splice, the 4th main splice, the first auxilliary splice and the second auxilliary splice.

According to the utility model one preferred embodiment; Back of the body frame comprises at least one support; Be removably fixed in one of the first main splice, the second main splice, the 3rd main splice, the 4th main splice, the first auxilliary splice and second auxilliary splice or more than, support is provided with convex closure.

For solving the problems of the technologies described above, another technical scheme that the utility model adopts is: a kind of back light system is provided, and it comprises light source, even optical mechanism and back of the body frame; Back of the body frame carries light source and even optical mechanism, and back of the body frame is above-mentioned any back of the body frame.

The beneficial effect of the utility model is: the situation that is different from prior art; Back of the body frame of the utility model and back light system are through being provided with minimum two main splices; And establish the intensity that the reinforcement structure is strengthened splicing through the stitching section on the main splice; Circuit board uses support to fix and adjustable positions in back of the body frame simultaneously; Make the mould structure of back of the body frame simple with this, reduce back of the body frame mould and back of the body frame cost, help making the intensity of back of the body frame to reach requirement, help fixing circuit board, can reduce the production cost of panel display apparatus.

Description of drawings

Fig. 1 is the back of the body mount structure sketch map of liquid crystal indicator in the prior art;

Fig. 2 is the structural representation according to the panel display apparatus of the utility model first embodiment;

Fig. 3 is the structural representation according to the back of the body frame of the panel display apparatus of the utility model second embodiment;

Fig. 4 is the sectional view of stitching section first embodiment of main splice shown in Figure 3 along A-A ' direction;

Fig. 5 is the sectional view of stitching section second embodiment of main splice shown in Figure 3 along A-A ' direction;

Fig. 6 is the sectional view of stitching section the 3rd embodiment of main splice shown in Figure 3 along A-A ' direction;

Fig. 7 is the sectional view of stitching section the 4th embodiment of main splice shown in Figure 3 along A-A ' direction;

Fig. 8 is the sectional view of stitching section the 5th embodiment of main splice shown in Figure 3 along A-A ' direction;

Fig. 9 is the sectional view of stitching section the 6th embodiment of main splice shown in Figure 3 along A-A ' direction;

Figure 10 is the sectional view of stitching section the 7th embodiment of main splice shown in Figure 3 along A-A ' direction;

Figure 11 is the sectional view of stitching section the 8th embodiment of main splice shown in Figure 3 along A-A ' direction;

Figure 12 is the sectional view of stitching section the 9th embodiment of main splice shown in Figure 3 along A-A ' direction;

Figure 13 is the sectional view of stitching section the tenth embodiment of main splice shown in Figure 3 along A-A ' direction;

Figure 14 is another structural representation of the reinforcement structure of back of the body frame shown in Figure 3;

Figure 15 is the structural representation according to the back of the body frame of the panel display apparatus of the utility model the 3rd embodiment;

Figure 16 is the structural representation according to the back of the body frame of the panel display apparatus of the utility model the 4th embodiment;

Figure 17 is the structural representation according to the connecting method in the panel display apparatus of the utility model the 5th embodiment;

Figure 18 is arranged on the sketch map on the main frame according to the auxilliary splice diagonal angle of first in the panel display apparatus of the utility model the 6th embodiment;

Figure 19 is according to the auxilliary splice of first in the panel display apparatus of the utility model the 7th embodiment and the second auxilliary sketch map of splice on main frame;

Figure 20 is the structural representation according to stitching section in the back of the body frame of the panel display apparatus of the utility model the 8th embodiment;

Figure 21 is the schematic cross-section of first embodiment of stitching section among Figure 20;

Figure 22 is the sketch map according to the connecting method of stitching section in the back of the body frame of the panel display apparatus of the utility model the 9th embodiment;

Figure 23 is the sketch map according to the connecting method of stitching section in the back of the body frame of the panel display apparatus of the utility model the tenth embodiment;

Figure 24 is the sketch map according to the connecting method of stitching section in the back of the body frame of the panel display apparatus of the utility model the 11 embodiment;

Figure 25 is the structural representation according to stitching section in the back of the body frame of the panel display apparatus of the utility model the 12 embodiment;

Figure 26 is the structural representation according to stitching section in the back of the body frame of the panel display apparatus of the utility model the 13 embodiment;

Figure 27 is the structural representation according to the back of the body frame of the panel display apparatus of the utility model the 14 embodiment;

Figure 28 is the structural representation according to the panel display apparatus of the utility model the 15 embodiment;

Figure 29 is the structural representation of the back of the body frame of a kind of FPD of the utility model;

Figure 30 is the flow chart of method of making the back of the body frame of panel display apparatus according to the utility model the 16 embodiment a kind of;

Figure 31 is a kind of structural representation with panel display apparatus of touch-screen according to the utility model the 17 embodiment;

Figure 32 is the structural representation according to the 3 d display device of the utility model the 18 embodiment;

Figure 33 is the structural representation according to the plasma display system of the utility model the 19 embodiment;

Figure 34 is the partial structurtes sketch map according to the back of the body frame of the panel display apparatus of the utility model the 20 embodiment;

Figure 35 is the enlarged diagram of junction of bracket component and the splice of back of the body frame shown in Figure 34;

Figure 36 is the cutaway view of junction of bracket component and the splice of back of the body frame shown in Figure 34;

Figure 37 is the enlarged diagram of junction of another bracket component and another splice of back of the body frame shown in Figure 34;

Figure 38 is the cutaway view of junction of another bracket component and another splice of back of the body frame shown in Figure 34;

Figure 39 is the enlarged diagram of junction of two bracket components of back of the body frame shown in Figure 34;

Figure 40 is the cutaway view of junction of two bracket components of back of the body frame shown in Figure 34;

Figure 41 is the partial structurtes sketch map according to the back of the body frame of the panel display apparatus of the utility model the 21 embodiment;

Figure 42 is the partial schematic diagram according to the back of the body frame of the panel display apparatus of the utility model the 22 embodiment;

Figure 43 is support and the schematic cross-section of circuit board in the back of the body frame shown in Figure 42.

The specific embodiment

See also Fig. 2-3, Fig. 2 is the structural representation according to the panel display apparatus of the utility model first embodiment, and Fig. 3 is the structural representation according to the back of the body frame of the panel display apparatus of the utility model second embodiment.As shown in Figure 2, the panel display apparatus 20 of present embodiment comprises: back light system 21 and display floater 22, back light system 21 is arranged at the back side of display floater 22, and for display floater 22 light source is provided.

In the present embodiment, back light system 21 comprises light source 25, even optical mechanism 24 and back of the body frame 23.Wherein, back of the body frame 23 carries light source 25 and even optical mechanism 24.When back light system 21 was side-light type, even optical mechanism 24 was LGPs; When back light system 21 was straight-down negative, even optical mechanism 24 was diffuser plates.Back of the body frame 23 comprises at least the first main splice and the second main splice, and first, second two main splices form the main frame 27 of carrying on the back frame 23 at least.

Consult Fig. 3 together, first embodiment of back of the body frame 23 comprises the first main splice 261 and the second main splice 262.One end matching of one end of the first main splice 261 and the second main splice 262 connects, and the other end splicing of the other end of the first main splice 261 and the second main splice 262 is to form the main frame 27 of back of the body frame 23.The first main splice 261 and the second main splice 262 are aluminum component or galvanized steel parts.In the present embodiment, the first main splice 261 and the second main splice 262 are L shaped.

Continue to consult Fig. 3; In the present embodiment; The first main splice 261 comprises stitching section 2611; The second main splice 262 comprises that in stitching section 2621, the first main splices 261 and the second main splice 262 at least one is provided with in its stitching section and strengthens structure (indicating), promptly at least in the stitching section 2611 or stitching section 2621 be provided with the reinforcement structure.

Being equipped with the reinforcement structure with stitching section 2611 and stitching section 2621 below is that example describes.

The cross section of stitching section 2611 and stitching section 2621 is a broken line shape; Strengthen structure to form; Broken line shape comprises at least two continuous line segments; Broken line shape such as strengthening structure is that rectangle is (as shown in Figure 4; Wherein be two to strengthen the concavo-convex stacked structure of structures in the dotted line circle), trapezoidal (as shown in Figure 5), swallow-tail form (as shown in Figure 6), inverted T-shaped (as shown in Figure 7), taper (as shown in Figure 8), corrugated (as shown in Figure 9) or grid-shaped (shown in figure 10), can also be T shape, cross or fork-shaped etc.Concavo-convex stacked between the reinforcement structure of the reinforcement structure of the stitching section 2611 of the first main splice 261 and the stitching section 2621 of the second main splice 262.

Perhaps, the cross section of stitching section 2611 and stitching section 2621 is an arc, strengthens structure to form.When cross section was arc, arc was one or above single-curvature (shown in figure 11), hyperbolicity (shown in figure 12) or multi-curvature arc (shown in figure 13).Concavo-convex stacked between the reinforcement structure of the reinforcement structure of the stitching section 2611 of the first main splice 261 and the stitching section 2621 of the second main splice 262.

Certainly the shape that forms the cross section of strengthening structure is not limited only to this, as long as can strengthen the intensity of stitching section.And; It should be noted that; Fig. 5 is to all embodiment of stitching section of main splice shown in Figure 13; The shape and two of reinforcement structure that reinforcement structure and the stitching section 2621 of stitching section 2611 are shown except that Fig. 5 is strengthened the concavo-convex stacked structure of structures, all the other all only illustrate stitching section 2611 or stitching section 2611 one of them the reinforcement structure shape and and not shown its concavo-convex stacked structure.

Consult Figure 14, it is 2621 to be provided with another structural representation of strengthening structure in the stitching section.This reinforcement structure is a flaggy 2623, and this flaggy 2623 is the thickenings to stitching section 2621, and stitching section 2611 is stacked with stitching section 2621.

More than can understand, the utility model embodiment forms back of the body frame through connecting method, makes the simple in structure of back of the body frame, and saves the material of back of the body frame, can reduce the production cost of backlight display device; Simultaneously, the reinforcement structure is set, can improves the intensity of back of the body frame jointing positions, and then make back of the body frame integral intensity reach requirement through stitching position at main splice.

Each embodiment of it should be noted that aforementioned reinforcement structure also is applicable to the following embodiment that respectively carries on the back frame, back light system or panel display apparatus.

Consult Figure 15 together, second embodiment of back of the body frame 23 comprises first main splice 281, second main splice 282 and the 3rd main splice 283.Three main splices 281,282 and 283 are spliced to form the main frame 27 of back of the body frame 23.Three main splices 281,282 and 283 are aluminum component or galvanized steel parts.In the present embodiment, the first main splice 281 is L shaped, and second and third main splice 282,283 is vertical bar shaped.

In addition, back of the body frame 23 can also comprise and is arranged in the main frame 27 and the auxilliary splices of splicing with it.

Below specify the back of the body frame 23 of the utility model panel display apparatus 20 with the auxilliary splice of four main splices and two.

See also Figure 16, Figure 16 is according to the structural representation of the back of the body frame of the panel display apparatus of the utility model the 4th embodiment.Shown in figure 16, carry on the back frame 23 in the present embodiment and comprise: first main splice 231, second main splice the 232, the 3rd main splice the 233, the 4th main splice 234, first auxilliary splice 235, second auxilliary splice 236 and the

support

2371,2372,2373,2374,2375,2376 and 2377.First main splice 231, second main splice the 232, the 3rd main splice 233 and the 4th main splice 234 are spliced to form the rectangle main frame 27 of back of the body frame 23 through head and the tail.The first auxilliary splice 235 and the second auxilliary splice 236 are arranged in the main frame 27 as auxilliary splice, and splice with main frame 27.

Particularly; One end matching of one end of the first main splice 231 and the second main splice 232 connects; One end matching of the other end of the second main splice 232 and the 3rd main splice 233 connects; One end matching of the other end of the 3rd main splice 233 and the 4th main splice 234 connects, and the other end splicing of the other end of the 4th main splice 234 and the first main splice 231 is to form rectangular main frame 27.Wherein, first main splice 231, second main splice the 232, the 3rd main splice 233 and the 4th main splice 234 are aluminum component or galvanized steel parts.In the present embodiment; First main splice 231, second main splice the 232, the 3rd main splice 233 and the 4th main splice 234 are vertical bar shaped; In other embodiments; Those skilled in the art can all be set to first main splice 231, second main splice the 232, the 3rd main splice 233 and the 4th main splice 234 L shaped fully, or part is set to vertical bar shaped, remaining be set to L shaped.For example, in Fig. 3, the first main splice 261 and the second main splice 262 all are set to L shaped; In Fig. 4, the first main splice 281 is set to L shaped, and second and third main splice 282 and 283 is set to vertical bar shaped.

In the present embodiment, the back of the body frame 23 of panel display apparatus 20 all adopts the splicing connected mode to splice fixing.Shown in figure 17; Connecing mode in succession with an end matching of the end of the first main splice 231 and the second main splice 232 is example; One end matching of the second main splice 232 is connected on the end of the first main splice 231; Such as, adopt be spirally connected, modes such as snapping or welding are connected on an end matching of the second main splice 232 on the end of the first main splice 231.

In the present embodiment, the first auxilliary splice 235 and the second auxilliary splice 236 are arranged in the main frame 27 of back of the body frame 23.One end of the first auxilliary splice 235 and first main splice 231 splicings; The other end of the first auxilliary splice 235 and the 3rd main splice 233 splicings; One end of the second auxilliary splice 236 and first main splice 231 splicings; The other end of the second auxilliary splice 236 and the 3rd main splice 233 splicings, and laterally arrange between second main splice the 232, the 4th main splice 234, the first auxilliary splice 235 and the second auxilliary splice 236.In other embodiments, those skilled in the art are provided with at least one auxilliary splice in main frame 27, and the first auxilliary splice 235 for example only is set in main frame 27.In addition; The two ends of the first auxilliary splice 235 can be respectively with first main splice 231, second main splice the 232, the 3rd main splice 233 and the 4th main splice 234 at least two main splices splicings; For example first auxilliary splice 235 diagonal angles are arranged in the main frame 27, and are shown in figure 18.In like manner can know, the two ends of the second auxilliary splice 236 can also be respectively with first main splice 231, second main splice the 232, the 3rd main splice 233 and the 4th main splice 234 at least two main splices splicings.For example; The two ends of the first auxilliary splice 235 respectively with first main splice 231, second main splice 232 splicings of adjacent setting; The two ends of the second auxilliary splice 236 respectively with the 3rd main splice the 233, the 4th main splice 234 splicings of adjacent setting, shown in figure 19.

In the present embodiment, back of the body frame 23 comprises seven

supports

2371,2372,2373,2374,2375,2376 and 2377.Wherein, Support 2371 is fixed on the 4th main splice 234;

Support

2372,2373 is individually fixed on the first auxilliary splice 235; Support 2374 is fixed on the second auxilliary splice 236, and support 2375 is fixed on the second main splice 232, and the two ends of

support

2376,2377 are individually fixed on the first auxilliary splice 235 and the second auxilliary splice 236.In fact, support can be fixed in one of the first main splice, 231, second main splice the 232, the 3rd main splice the 233, the 4th main splice 234, the first auxilliary splice 235 and second auxilliary splice 236 or more than.In other embodiments, those skilled in the art can be provided with the support of other quantity fully at the back of the body on the frame 23, such as a support or more than.In addition, support can dismantle be fixed in one of the first main splice, 231, second main splice the 232, the 3rd main splice the 233, the 4th main splice 234, the first auxilliary splice 235 and second auxilliary splice 236 or more than.

On

support

2371,2372,2373,2374,2375,2376 and 2377, be equipped with convex closure (not indicating), back of the body frame 23 can be through devices such as this convex closure fixing circuit boards.

Below further specify above-mentioned back of the body frame 23 corresponding moulds.In the present embodiment, the first main splice 231 and the 3rd main splice 233 measure-alike, shape is identical, uses identical mould punching press to make.Second main splice the 232, the 4th main splice 234, the first auxilliary splice 235 and second is assisted the measure-alike of splice 236, and shape is identical, uses identical mould punching press to make, and realizes that mould is shared.Therefore, the back of the body frame 23 of the utility model can make through using the punching press of two kinds of small size moulds, and back of the body frame 10 needs the large scale mould in the prior art, and the mould structure of the back of the body frame 23 of the utility model is simple and little, and then reduces the cost of back of the body frame 23 moulds.In addition, the back of the body frame 23 of the utility model can significantly be saved material, to reduce the production cost of panel display apparatus 20 with respect to the integral body back of the body frame of back of the body frame 10 in the prior art.

See also Figure 20, Figure 20 is the structural representation according to stitching section in the back of the body frame of a kind of panel display apparatus of the utility model the 8th embodiment.Shown in figure 20, in the present embodiment, an end of the first main splice is provided with two stitching sections, and an end of the structure of stitching section and the corresponding second main stitching section is adaptive, so that an end matching of the first main splice and the corresponding second main splice connects.

Particularly; One end of the first main splice 231 is provided with

stitching section

2311,2312;

Stitching section

2311,2312 is along being spaced on the length direction of the first main splice 231; Stitching section the 2311, the 2312nd is at the shape of first main splice 231 settings and the adaptive recess of an end of the second main splice 232, to accommodate an end of the second main splice 232.Shown in figure 21,

stitching section

2311,2312 is the recess of the relative two sides of an end of not running through the first main splice 231, recess be shaped as rectangle, the second main splice 232 is a vertical bar shaped.

When assembly unit large-size back of the body frame 23, at first select the stitching section 2311 of the end of the contiguous first main splice 231, and select the second main splice 232 of respective widths.End with the second main splice 232 is arranged on the recess of stitching section 2311 subsequently.Subsequently through be spirally connected, mode such as snapping or welding connects an end matching of the second main splice 232 and is fixed on the stitching section 2311.When assembly unit reduced size back of the body frame 23, at first select stitching section 2312, and select the second main splice 232 of respective widths away from the end of the first main splice 231.End with the second main splice 232 is arranged on the recess of stitching section 2312 subsequently.Subsequently through be spirally connected, mode such as snapping or welding connects an end matching of the second main splice 232 and is fixed on the stitching section 2312.On concrete; For example be provided with convexity in the surperficial relevant position of the second main splice 232; Wherein the convexity of the second main splice 232 embeds the recess of first main splice 231 opposite positions, and is to splice the first main splice 231 and the second main splice 232, shown in figure 22.In addition, an end of the said second main splice 232 can be provided with spaced convexity on second main splice 232 length directions of at least two edges, such as two, three or four etc.

Further, the recess of the first main splice 231 is the recess of multi-ladder structure, and second main splice 232 opposite positions are provided with the protuberance with the adaptive multi-ladder structure of recess, and are shown in figure 23.In addition; Shown in figure 24, be example with stitching section 2311, the concave bottom of the first main splice 231 is provided with first through hole 2313; The second main splice 232 is provided with second through hole 2321 corresponding to the position of stitching section 2311; Back of the body frame 23 further comprises fixture 240, and fixture 240 passes first through hole 2313 and second through hole 2321, so that the first main splice 231 and the second main splice 232 are spliced.

Like Figure 25, in another embodiment of the back of the body frame of the utility model panel display apparatus, the recess shapes of the

stitching section

2311,2312 of the first main splice 231 is circular.But in other embodiments, those skilled in the art can be arranged to other polygonal shapes such as triangle with the shape of recess fully.

Like Figure 26, in another embodiment of the back of the body frame of the utility model panel display apparatus,

stitching section

2311,2312 is for the recess of the relative both sides of running through the first main splice 231, so that an end of the second main splice 232 moves on stitching section 2311,2312.Such as the end at the second main splice 232 pass stitching section 2312 and splicing fixing after, can cut and pass part, and then regulate the length of the second main splice 232 the time as back of the body frame master splice.

In practical application, the two ends of the other end of the first main splice 231 and the 3rd main splice 233 are equipped with two stitching sections, and its structure is identical with the structure of

stitching section

2311,2312; And at the two ends of the second main splice 232 and the two ends of the 4th main splice 234, corresponding to condition of different, also correspondingly design or do not design, such as:

1) first kind of situation; Shown in figure 21; Any design can not be carried out at the two ends of the two ends of the second main splice 232 and the 4th main splice 234, and promptly the end is identical with the structure at other positions, when at this time splicing in the different stitching sections 2311 (2312) of selecting first main splice 231 1 ends (other end is handled equally); If the width respective change of wanting to carry on the back frame 23, the length of the then corresponding second main splice 232 and the 4th main splice 234 is also done corresponding selection.That is,, then the second main splice 232 and the 4th main splice 234 are not carried out cutting, or the part that crops is shorter if splice the stitching section 2311 of contiguous first main splice 231 1 ends of choosing; If when selecting to splice away from the stitching section 2312 of first main splice 231 1 ends; Then the second main splice 232 and the 4th main splice 234 are all carried out cutting; According to the distance of stitching section distance first main splice 231 1 ends, the part that crops is also long or shorter;

2) second kind of situation; Similar aforementioned first kind of situation; Shown in figure 22, only the second main splice 232 comes to cooperate with the first main splice 231 and the 3rd main splice 233 respectively with different convexities with the 4th main splice 234, realizes the change width of back of the body frame 23; Equally, when splicing, after splicing or before the splicing, second main splice 232 that has more and the 4th main splice 234 parts are carried out cutting as if selection other stitching sections 2312 except that leaving the first nearest stitching section 2311 of first main splice 231 1 ends.

Above situation also is applicable to only splices with two L shaped main splices and obtains carrying on the back the main frame 27 of frame 23.

In sum, the first main splice of the back of the body frame 23 of the utility model is provided with at least two stitching sections, according to user's request the quantity of stitching section is set, and chooses two stitching sections 2311,2312 in the present embodiment and describes.Therefore, when the mould of back of the body frame 23 is set, two groups of moulds only need be set, promptly the mould of the mould of the first main splice and the second main splice is provided with a plurality of stitching sections obtain various sizes with splicing back of the body frame 23 on the first main splice.When assembly unit back of the body frame 23; Can be according to the size of back of the body frame 23; Select corresponding stitching section; Through the stitching section the second main splice is spliced on the stitching section of the first main splice, and other stitching sections in the stitching position outside that is positioned at the second main splice in the first main splice are cut, to obtain the back of the body frame 23 of required size.With respect to the back of the body frame 10 according to different size in the prior art different back of the body frame moulds are set; The back of the body frame 23 of the panel display apparatus of the utility model only need be provided with the mould of the first main splice and the mould of the second main splice 28; It is shared that the mould of various sizes product requirement is satisfied in realization; And mould structure is simple, can reduce the cost of back of the body frame mould.

See also Figure 27-28; Be example with four main splices and two auxilliary splices below; The back of the body frame 23 that the utility model panel display apparatus 20 is described when main splice is provided with pyrotoxin, different on material is selected of this main splice and other splice that pyrotoxin is not set.

In four main splices and two the auxilliary splices; Comprise the main splice that is used to be provided with pyrotoxin at least two main splices; The main splice that is used to be provided with pyrotoxin has first capacity of heat transmission, at least two main splices all the other be not used in that pyrotoxin is set or more than main splice have second capacity of heat transmission; Wherein, first capacity of heat transmission is greater than second capacity of heat transmission.

Pyrotoxin can be the electronic device of Light-Emitting Diode (LED), printed circuit board (pcb) or other heatings, is example herein with LED.The parameter that characterizes the capacity of heat transmission can be a thermal conductivity factor, the thermal conductivity factor that is to say the main splice that is arranged at pyrotoxin greater than all the other be not used in that pyrotoxin is set or more than the thermal conductivity factor of main splice.

The main splice that is used to be provided with pyrotoxin has first intensity, at least two main splices all the other be not used in that pyrotoxin is set or more than main splice have second intensity, second intensity is greater than first intensity.

Main splice with first capacity of heat transmission and first intensity is an aluminum component, and the main splice with second capacity of heat transmission and second intensity is a galvanized steel parts.Certainly, except aluminum component, what heat-sinking capability was higher can also be copper spare, magnesium alloy or open-cell foam aluminium alloy etc.; And except galvanized steel parts, what intensity was high can also be biochip or tinplate etc.

The back of the body frame of forming with the auxilliary splice of four main splices and two more below is an example; Form back of the body frame like main splice 291, second main splice the 292, the 3rd main splice the 293, the 4th main splice 294, the first auxilliary splice 295 of Figure 27-28, the first and the second auxilliary splice 296.The main splice that pyrotoxin 25 wherein is set is the 3rd main splice 293 and the 4th main splice 294; The 3rd main splice 293 and the 4th main splice 294 are made by aluminum component M1, and other first main splice 291, second main splice 292, the first auxilliary splice 295 and second auxilliary splice 296 that pyrotoxin 10125 is not set is made by galvanized steel parts M2.

In addition, the main splice that is used to be provided with pyrotoxin also can be range upon range of ground floor and second layer structure, the wherein contiguous pyrotoxin setting of ground floor, and the capacity of heat transmission of ground floor is greater than the capacity of heat transmission of the second layer.

The contiguous pyrotoxin setting of ground floor, the material of ground floor can be selected the material of the capacity of heat transmission greater than the second layer, and for example ground floor is an aluminum component, perhaps copper spare, magnesium alloy or open-cell foam aluminium alloy etc., the second layer is a galvanized steel parts, perhaps biochip, tinplate etc.Certainly, the main splice that pyrotoxin 10125 is set can be to have only one deck, and material is with the material of above-mentioned ground floor.

Aluminum component, copper spare etc. have better radiating effect, help improving the life-span of product; Radiating effects such as galvanized steel plain sheet are relatively poor, but price is relatively cheap, and intensity is higher.In the cost of back of the body frame, the proportion that the cost of raw material accounts for is maximum.If back of the body frame all uses aluminum component etc. to have the material of better radiating effect, cost is too high, and structural strength is relatively poor; All use the relatively poor materials of radiating effect such as galvanized steel plain sheet, it is bad then to dispel the heat, and reduces properties of product.Therefore in practical application as required, diverse location uses number of various materials, such as aluminum component and galvanized steel plain sheet collocation, can make minimumization of product cost, guarantees that simultaneously heat radiation and intensity satisfy the demands, and reduces material cost thus, thus the reduction product cost.Certainly, above-mentioned splice is various embodiment on material is selected, and is applicable to too and adopts two L type master splices to splice the situation that obtains main frame.

The utility model also provides a kind of mould of making the back of the body frame of panel display apparatus; The module of this back of the body frame is provided with the master pattern of the main splice that is used to form back of the body frame, and master pattern is provided with the sub patterns that is used for forming at an end of main splice at least two stitching sections.Wherein, main splice is the above-mentioned first main splice and the second main splice, corresponding above-mentioned master pattern; The stitching section is the stitching section of the above-mentioned first main splice, and corresponding above-mentioned sub patterns repeats no more at this.

Shown in figure 29, the structural representation of the back of the body frame of a kind of FPD of the utility model.The first main splice 261 and the second main splice 262.One end matching of one end of the first main splice 261 and the second main splice 262 connects, and the other end splicing of the other end of the first main splice 261 and the second main splice 262 is to form the main frame 27 of back of the body frame 23.The first main splice 261 and the second main splice 262 are aluminum component or galvanized steel parts.In the present embodiment, the first main splice 261 and the second main splice 262 are L shaped.

Please cooperate referring to shown in Figure 3; The first main splice 261 comprises stitching section 2611; The second main splice 262 comprises stitching section 2621; In the first main splice 261 and the second main splice 262 at least one is provided with in its stitching section strengthens structure (indicating), promptly at least in the stitching section 2611 or stitching section 2621 be provided with the reinforcement structure.

Please cooperate referring to shown in Figure 34, support 60 is spliced by bracket component 601,602, and the two ends of support 60 are individually fixed on the splice 61,62.

Splice

61,62 can be fixed at least two diverse locations of support 60 along the length direction of support 60, and wherein,

splice

61,62 can be main splice or the auxilliary splice among above-mentioned each embodiment.Also be; Support 60 can be fixed on main splice or the auxilliary splice; Or be fixed in simultaneously on main splice and the auxilliary splice; Its medium-height trestle 60 is provided with at least two (corresponding aforesaid two diverse locations) with optional fixing point between main splice or the auxilliary splice, so that support 60 is arranged at the diverse location of back of the body frame alternatively.In other alternatives, support 60 an only end is fixed on the splice, the unsettled setting of the other end, and support 60 also can be the one design.

Referring to shown in Figure 42, support 60 comprises that rack body 11161, first portion 11162, first of dangling sets off the portion 11163 and the first elasticity turnover portion 11164.Rack body 11161 is fixed on splice 11171 and 11172.Also be; Rack body 11161 is fixed on main splice or the auxilliary splice; Or be fixed in simultaneously on main splice and the auxilliary splice; Wherein the optional fixing point between rack body 11161 and main splice or the auxilliary splice is provided with at least two, so that rack body 11161 is arranged at the diverse location of back of the body frame alternatively.In the present embodiment, rack body 11161 be stairstepping and bridge at two splices 11171, between 11172.

Shown in figure 30, the utility model also provides a kind of method of making the back of the body frame of panel display apparatus, and this method may further comprise the steps:

Step 501: make at least two main splices; Comprise the main splice that is used to be provided with pyrotoxin in said at least two main splices; The said main splice that is used to be provided with pyrotoxin has first capacity of heat transmission; In said at least two main splices all the other be not used in that pyrotoxin is set or more than main splice have second capacity of heat transmission, said first capacity of heat transmission is greater than second capacity of heat transmission.

Step 502: said at least two main splices are spliced.

In the present embodiment; When having other stitching sections between the adjacent end portion of the stitching position of the second main splice and the first main splice; Before or after the step that the end matching according to a stitching section and the corresponding second main splice of at least two stitching sections of size Selection of back of the body frame connects, other stitching sections outside the stitching position that is positioned at the second main splice in the first main splice are cut.Wherein the first main splice is the above-mentioned first main splice, and the second main splice is the above-mentioned second main splice, repeats no more at this.

Shown in figure 31, the panel display apparatus 20 of the utility model further comprises a touch-screen 29, and touch-screen 29 is arranged on the exiting surface of display floater 22 of panel display apparatus 20.Wherein, panel display apparatus 20 comprises: back light system 21 and above-mentioned display floater 22, back light system 21 is arranged at the back side of display floater 22, and for display floater 22 light source is provided.

Back light system 21 comprises light source 25, even optical mechanism 24 and back of the body frame 23.Wherein, back of the body frame 23 carries light source 25 and even optical mechanism 24.When back light system 21 was side-light type, even optical mechanism 24 was LGPs; When back light system 21 was straight-down negative, even optical mechanism 24 was diffuser plates.Back of the body frame 23 comprises at least the first main splice and the second main splice, and first, second two main splices form the main frame 27 of carrying on the back frame 23 at least.

Certainly, back light system 21 can also be the structure among aforementioned arbitrary back light system embodiment.

Panel display apparatus 20 that it should be noted that the utility model can be liquid crystal indicator or liquid crystal TV set.

The utility model also provides a kind of 3 d display device 30, and is shown in figure 32, and 3 d display device 30 comprises liquid crystal lens grating 31, back light system 32 and display floater 33.Wherein, liquid crystal lens grating 31 is arranged on the exiting surface of display floater 33.Back light system 32 is the back light system of above-mentioned each embodiment, comprises back of the body frame 23 such as back light system 32.Wherein, back of the body frame 23 comprises at least the first main splice and the second main splice, and first, second two main splices form the main frame of carrying on the back frame at least.Back light system 32 can also be the structure among aforementioned arbitrary back light system embodiment, repeats no more at this.

The utility model also provides a kind of plasma display system 40, and is shown in figure 33, and plasma display system 40 comprises Plasmia indicating panel 41 and back of the body frame 42, and back of the body frame 42 is arranged on the back side of Plasmia indicating panel 41.Wherein, back of the body frame 42 can also repeat no more at this for the back of the body frame of aforementioned arbitrary embodiment.

The utility model also provides a kind of support that can be applicable to the back of the body frame that above-mentioned each embodiment discloses; Wherein, This support can interfix with above-mentioned splice, and splice can be fixed at least two diverse locations of support along the length direction of support, thereby can traversing carriage; Make the convex closure adjustable positions that is used to locate that is provided with on the support, thereby satisfy the difference assembling demand of back of the body frame.

Particularly, shown in figure 34, in the present embodiment, support 60 is spliced by bracket component 601,602, and the two ends of support 60 are individually fixed on the splice 61,62.

Splice

splice

61,62 can be main splice or the auxilliary splice among above-mentioned each embodiment.In other alternatives, support 60 an only end is fixed on the splice, the unsettled setting of the other end, and support 60 also can be the one design.

Further combination Figure 35-shown in Figure 36, in the end that bracket component 601 and splice 61 interfix, the length direction of bracket component 601 upper edge supports 60 is provided with strip through hole 6011.Bracket component 601 is fixed on the splice 61 of back of the body frame through screw 63.Screw 63 can be arranged at the diverse location of strip through hole 6011.Therefore; When mounted; Strip through hole 6011 is overlapping with the screw 611 of splice 61, and according to length direction adjusting bracket component 601 the position on splice 61 of installation needs along support 60, and then regulate the position of the convex closure 6012 of bracket component 601 with respect to splice 61.After the convex closure 6012 with bracket component 601 is adjusted to the appropriate location, screw 63 is set to the relevant position of strip through hole 6011, and locks onto in the screw 611 of splice 61, and then and bracket component 601 is fixed on the splice 61.

In like manner; Further combine shown in Figure 37-38,, be provided with strip through hole 6021 along the length direction of support 60 in the end that interfixes with splice 62 of bracket component 602; The diverse location of screw 64 in strip through hole 6021 can be set; And through screw 64 is locked onto in the screw 621 of splice 62, and then bracket component 602 is fixed on the splice 62, realize the position adjustments of convex closure 6022 relative splices 62 thus.

Further combination Figure 39-shown in Figure 40; In the end that bracket component 601 and bracket component 602 interfix; The length direction of bracket component 601 upper edge supports 60 is provided with strip through hole 6013, and the length direction of bracket component 602 upper edge supports 60 is provided with strip through hole 6023.Bracket component 601 is fixed in bracket component 602 through screw 65.Wherein, screw 65 can be arranged at the diverse location of strip through hole 6013,6023.When mounted; Strip through

hole

6013,6023 is overlapping; And regulate the position of

bracket component

601 and 602 along the length direction of support 60 according to the installation needs, and advance to regulate

convex closure

6012,6022 with respect to the position of splice 11161,11162 (seeing Figure 42) and the length of support 60.After position adjustments, screw 65 is set to the relevant position of strip through

hole

6013 and 6023, and locks, so that bracket component 601 is fixed on the bracket component 602.In other alternatives, screw 63,64,65 can be replaced by other fixtures such as rivet or bolt.

Shown in figure 41, in the present embodiment, the length direction of support is arranged at intervals with the strip through hole that at least two through holes replace the foregoing description in the support upper edge.Particularly, in the end that interfixes with splice 71 of bracket component 701, be provided with a plurality of through

holes

7014,7015,7016 along the length direction of support 70.Screw (not illustrating) can be arranged in one in the through

hole

7014,7015,7016, and is locked in the screw 711 of splice 71, thereby bracket component 701 is fixed on the splice 71, realizes the position adjustments of convex closure 7012 relative splices 71 thus.

Likewise, in the end that interfixes with splice 72 of bracket component 702, be provided with a plurality of through

holes

7024,7025,7026 along the length direction of support 70.Screw (not illustrating) can be arranged in one in the through

hole

7024,7025,7026, and is locked in the screw 721 of splice 72, thereby bracket component 702 is fixed on the splice 72, realizes the position adjustments of convex closure 7022 relative splices 72 thus

In addition; In the end that bracket component 701 and bracket component 702 interfix; The length direction of bracket component 701 upper edge supports 70 is provided with a plurality of through

holes

7017,7018,7019, and the length direction of bracket component 702 upper edge supports 70 is provided with a plurality of through

holes

7027,7028,7029.Screw (not illustrating) can be arranged at any one in a plurality of through

holes

7017,7018,7019 and a plurality of through

holes

7027,7028,7029 any one in.When mounted, regulate the position of

bracket component

701 and 702 along the length direction of support according to the installation needs, and the through hole of correspondence is overlapping, and advance to regulate

convex closure

7012,7022 with respect to the position of

splice

71,72 and the length of support 70.After position adjustments, screw is set on the corresponding through hole lap position, and locks, so that bracket component 701 is fixed on the bracket component 702.

In the above embodiment, utilize screw that support is fixed in splice, fix but those skilled in the art also can associate fixtures such as available rivet easily, the utility model is not done concrete qualification to this.

The utility model also provides a kind of support that is applicable to above-mentioned each embodiment, and it is fixed on the splice, can be used for fixing circuit board.See also Figure 42-Figure 43,

splice

11171,11172 is the various splices of the foregoing description, comprise the main splice that is used to be spliced to form main frame backlight or be arranged in the main frame and with the auxilliary splice of main frame splicing.Support 60 comprises that rack body 11161, first portion 11162, first of dangling sets off the portion 11163 and the first elasticity turnover portion 11164.Rack body 11161 is fixed on splice 11171 and 11172.In the present embodiment, rack body 11161 be stairstepping and bridge at two splices 11171, between 11172.Yet in the alternative of the utility model, rack body 11161 can be vertical bar shaped or other shapes, and rack body 11161 only an end be fixed on the splice, the unsettled setting of the other end is to simplify installation process.

First dangles portion 11162 from the length direction extension of rack body 11161 to rack body 11161; First set off portion 11163 and rack body 11161 at interval and from first dangle portion 11162 to first dangle portion 11162 length direction extend; The first elasticity turnover portion 11164 first set off between portion 11163 and the rack body 11161 and from first dangle portion 11162 to first dangle portion 11162 the length direction turnover, first sets off the first side edge of portion 11163 and the first elasticity turnover portion, 11164 resilient clamp circuit boards 11180.

Please continue referring to Figure 43, support 60 comprises that further second portion 11162 ', second of dangling sets off the portion 11163 ' and the second elasticity turnover portion 11164 '.Second the dangle portion 11162 of portion 11162 ' and first of dangling is provided with at interval; And from rack body 11161 extending laterally to rack body 11161; Second set off portion 11163 ' and rack body 11161 at interval and from second dangle portion 11162 ' to second dangle portion 11162 ' length direction extend; The second elasticity turnover portion 11164 ' be positioned at second set off between portion 11163 ' and the rack body 11161 and from second dangle portion 11162 ' to second dangle portion 11162 ' the length direction turnover, second sets off the second side edge relative with the first side edge of portion 11163 ' and the second elasticity turnover portion, 11164 ' resilient clamp circuit board 11180.In a preferred embodiment, first portion 11162, first of dangling sets off the portion 11162 ', second of dangling of portion 11163 and the first elasticity turnover portion 11164 and second and sets off portion 11163 ' and the second elasticity turnover portion 11164 ' and become to be symmetrical set with respect to the center line of rack body 11161.In the alternative of the utility model; The portion 11163 and the first elasticity turnover portion 11164 are set off in first portion 11162, first of dangling that can only be provided with on the rack body 11161 of support 60; And then the first side edge of resilient clamp circuit board 11180 only, and through being provided with and support 60 another identical supports come the second side edge of resilient clamp circuit board 11180.

Please continue referring to Figure 43, after circuit board 11180 assembled, further at rack body 11161 electromagnetic shield 100 is set, electromagnetic shield 100 is provided with circuit board 11180 at interval, shields with the electromagnetic signal that circuit board 11180 is produced.Electromagnetic shield 100 can be faraday's net or sheet metal.

Please continue referring to Figure 42, in the present embodiment, the support 90 identical with support 60 structures is set further, support 90 is provided with support 60 at interval, with the first side edge of clamping circuit board 11180 and the diverse location of second side edge.

By the way, back of the body frame of the utility model and back light system form back of the body frame through connecting method, make the simple in structure of back of the body frame, and save the material of back of the body frame, can reduce the production cost of backlight display device.Further utilize to comprise that the support that dangles rack body, first portion, first sets off the portion and the first elasticity turnover portion fixes circuit board, can save die cost, solve circuit board and be difficult for fixing problem.

By the way; The back of the body frame mould of the utility model panel display apparatus, 3 d display device and plasma display system is simple in structure, can reduce material cost and die cost, help heat radiation, help fixing back of the body frame, easy to use, help fixing circuit board.

The above is merely the embodiment of the utility model; Be not thus the restriction the utility model claim; Every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the utility model.

Claims

1. the back of the body frame of a panel display apparatus is characterized in that:

Said back of the body frame comprises main splice, auxilliary splice and the support that is used for fixing circuit board;

The quantity of said main splice is at least two, and an end of at least one said main splice is provided with the stitching section, and said at least two main splices splice through the stitching section, connect with connecting method between said auxilliary splice and the main splice;

The stitching section of one of them said main splice is provided with the reinforcement structure;

Said support comprises that rack body, first portion, first of dangling sets off the portion and the first elasticity turnover portion; Said rack body is fixed on main splice or the auxilliary splice; Or be fixed in simultaneously on main splice and the auxilliary splice; Optional fixing point between wherein said rack body and main splice or the auxilliary splice is provided with at least two, so that rack body is arranged at the diverse location of back of the body frame alternatively;

Said first portion of dangling extends from the length direction of rack body to rack body; Said first set off portion and rack body at interval and from first dangle portion to first dangle portion length direction extend; The said first elasticity turnover portion be positioned at first set off between portion and the rack body and from first dangle portion to first dangle portion the length direction turnover, said first sets off the first side edge of the portion and the first elasticity turnover portion resilient clamp circuit board.

2. back of the body frame according to claim 1 is characterized in that:

Said at least two main splices comprise the first main splice and the second main splice.

3. back of the body frame according to claim 2 is characterized in that:

Said stitching section is the shape that is provided with on the first main splice surface and the adaptive recess of an end of the second main splice, to accommodate an end of the second main splice.

4. back of the body frame according to claim 3; It is characterized in that: the concave bottom of the said first main splice is provided with first through hole; The relevant position of the said second main splice is provided with second through hole; Said back of the body frame comprises fixture, and said fixture passes first through hole and second through hole with the first main splice and the second main splice splicing.

5. back of the body frame according to claim 2 is characterized in that:

Said stitching section is the recess that is provided with on the first main splice surface, and the surperficial relevant position of the said second main splice is provided with convexity, and the said protruding recess that embeds is to splice the said first main splice and the second main splice.

6. according to each described back of the body frame of claim 1 to 5, it is characterized in that:

The cross section of each said main splice in the stitching section is broken line shape, and to form said reinforcement structure, said broken line shape comprises at least two continuous line segments, and the reinforcement structure of said two main splices is concavo-convex stacked.

7. according to each described back of the body frame of claim 1 to 5, it is characterized in that:

The cross section of each said main splice in the stitching section is arc, form said reinforcement structure, and the reinforcement structure of said two main splices is concavo-convex stacked.

8. back of the body frame according to claim 1; It is characterized in that: the length direction of the said rack body in said rack body upper edge is arranged at intervals with at least two through holes; Said auxilliary splice can be arranged among any in said two through holes at least, and said rack body is fixed on the said auxilliary splice.

9. back of the body frame according to claim 1; It is characterized in that: said support comprises at least two bracket components; Wherein at least one bracket component is fixed in said main splice along the length direction of said support; The length direction of said another said support in bracket component upper edge is arranged at intervals with at least two through holes, and said main splice can be arranged among any in said two through holes at least.

10. back of the body frame according to claim 9; It is characterized in that: said support comprises that further second portion, second of dangling sets off the portion and the second elasticity turnover portion; Said second dangle portion and said first portion of dangling is provided with at interval; And extend from the length direction of said rack body to said rack body; Said second set off portion and said rack body at interval and from said second dangle portion to said second dangle portion length direction extend; The said second elasticity turnover portion be positioned at said second set off between portion and the said rack body and from said second dangle portion to said second dangle portion the length direction turnover, said second sets off portion and the said circuit board of the said second elasticity turnover portion resilient clamp.

11. back of the body frame according to claim 9 is characterized in that: the first side edge of said two said circuit boards of bracket component clamping and the diverse location of second side edge.

12., it is characterized in that according to each described back of the body frame of claim 1 to 5: said rack body be stairstepping and bridge between two said main splices, between two auxilliary splices or between main splice and the auxilliary splice.

13., it is characterized in that according to each described back of the body frame of claim 2 to 5:

Said back of the body frame comprises the 3rd main splice and the 4th main splice;

The said first main splice, the second main splice, the 3rd main splice and the 4th main splice are all vertical bar shaped, and the head and the tail splicing, with the rectangle main frame around the said back of the body frame of formation.

14. back of the body frame according to claim 13 is characterized in that:

Said auxilliary splice comprises the first auxilliary splice and the second auxilliary splice; The two ends of the said first auxilliary splice respectively with the first main splice, the second main splice, the 3rd main splice and the 4th main splice at least two main splices splicings, the two ends of the said second auxilliary splice respectively with the first main splice, the second main splice, the 3rd main splice and the 4th main splice at least two main splices splicings.

15. back of the body frame according to claim 13 is characterized in that:

The two ends of the said first auxilliary splice respectively with the first main splice, the second main splice splicing of adjacent setting, splice with the 3rd main splice of adjacent setting, the 4th main splice at the two ends of the second auxilliary splice; Or splice with the first main splice that is oppositely arranged, the 3rd main splice respectively at the two ends of the said first auxilliary splice; The two ends of the second auxilliary splice and the first main splice that is oppositely arranged, the 3rd main splice splicing laterally arrange between the said second main splice, the 4th main splice, the first auxilliary splice and the second auxilliary splice.

16. back of the body frame according to claim 15 is characterized in that:

Said back of the body frame comprises at least one support, be removably fixed in one of the said first main splice, the second main splice, the 3rd main splice, the 4th main splice, the first auxilliary splice and second auxilliary splice or more than, said support is provided with convex closure.

17. a back light system is characterized in that:

Said back light system comprises light source, even optical mechanism and back of the body frame;

Said back of the body frame carries said light source and even optical mechanism, and said back of the body frame is each described back of the body frame among the claim 1-5.