CN101725927B - Back light module - Google Patents
Back light module Download PDFInfo
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- CN101725927B CN101725927B CN 200810201150 CN200810201150A CN101725927B CN 101725927 B CN101725927 B CN 101725927B CN 200810201150 CN200810201150 CN 200810201150 CN 200810201150 A CN200810201150 A CN 200810201150A CN 101725927 B CN101725927 B CN 101725927B
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Abstract
The invention relates to a back light module which comprises a frame, a plurality of lamp tubes, a diffuser plate and a plurality of support structures, wherein the frame is provided with a bottom plate, the lamp tubes are arranged in the frame, the diffuser plate is arranged above the lamp tubes, and the support structures are arranged on the bottom plate to support the lamp tubes and the diffuser plate. Each support structure comprises a first substrate, at least one lamp tube support part, a second substrate, at least one lamp tube fixing part and at least one ejector pin. The lamp tube support part is arranged on the first substrate, and the second substrate abuts upon the first substrate. The lamp tube fixing part is arranged on the second substrate, wherein each lamp tube support part corresponds to one lamp tube fixing part and is used for supporting and fixing one of the lamp tubes. The ejector pin is arranged on the first substrate or the second substrate to support the diffuser plate.
Description
Technical field
The present invention relates to a kind of backlight module, relate in particular to a kind of down straight aphototropism mode set (Direct Type Backlight Module).
Background technology
Along with the progress of science and technology, the technology of display is constantly development also, and frivolous flat-panel screens (Flat Panel Display, FPD) replaces the thick and heavy negative electrode crt display (Cathode Ray Tube, CRT) of tradition gradually.Common flat-panel screens comprises plasma display (Plasma Display Panel, PDP) with liquid crystal display (Liquid Crystal Display, LCD), it all can be applied in personal digital assistant, mobile computer, mobile phone and TV etc. widely.
Take liquid crystal display as example, liquid crystal display comprises a liquid crystal panel and a backlight module.Liquid crystal panel is made of two transparency carriers and the liquid crystal layer that is disposed between this two transparency carrier, and backlight module then is the light source that provides this liquid crystal panel required, so that liquid crystal display reaches the effect of demonstration.In general, backlight module can be divided into straight-down negative (Direct Type) and two kinds of side light-entering types (Side Incident Type), wherein down straight aphototropism mode set is generally used in the liquid crystal display of large-size, and the side injection type backlight module is generally used in the liquid crystal display of reduced size.
Because liquid crystal display is towards the large scale development, so mostly adopt down straight aphototropism mode set at present.To utilize bracing frame that fluorescent tube is fixed on the base plate in the existing down straight aphototropism mode set, bracing frame itself then is directly to stick via double faced adhesive tape to be fixed on the base plate, so when single fluorescent tube need to be changed, diffuser plate and the blooming that dismantle first above fluorescent tube just can carry out the replacing operation of fluorescent tube.In addition, except the dismounting or the inconvenience in the assembling of fluorescent tube, also be easy to and make colloid produce the phenomenon that stickiness reduces because of the high temperature that fluorescent tube produces, or get loose between bracing frame and the fluorescent tube and affect the fiduciary level of backlight module because after long-time the use, cause.
In addition, the bracing frame of existing down straight aphototropism mode set is to separate to fall within the base plate diverse location with thimble, and this design can reduce the area of reflector plate reflection fluorescent tube light, backlightly all spends together and reduce.Incidentally be, the light source of down straight aphototropism mode set adopts cathode fluorescent tube (Cold CathodeFluorescence Lamp usually, CCFL), yet because the cathode fluorescent tube volume is larger, and fluorescent tube is the material that belongs to frangible, add under the development that liquid crystal indicator maximizes increasingly, it is long that fluorescent tube length reaches 500～800mm easily, and assembling/removal bracket structure is epochmaking problem on the manufacturing backlight module therefore to provide good fixed effect to reach more easily to fluorescent tube.
Summary of the invention
The invention provides a kind of backlight module, it can increase the area of reflector plate reflection fluorescent tube light, and increases the even back degree, and can be easy to assembling and quick-detachment.
The invention provides another kind of backlight module, it can provide good fixed effect to fluorescent tube.
The invention provides a kind of backlight module, it comprises a framework, a plurality of fluorescent tube, a diffuser plate and a plurality of supporting construction.Framework has a base plate.Fluorescent tube is disposed in the framework, and diffuser plate is arranged at the top of fluorescent tube.Support structure configuration is on base plate.Each supporting construction comprises one first ground, at least one lamp tube supporting part, one second ground, at least one fluorescent tube fixed part and at least one thimble.Lamp tube supporting part is disposed on the first ground, and the second ground is in abutting connection with the first ground.The fluorescent tube fixed part is disposed on the second ground, and wherein the corresponding fluorescent tube fixed part of each lamp tube supporting part arranges, in order to support and to fix one of them of these fluorescent tubes.Thimble is arranged on the first ground or the second ground, in order to supporting diffusion plate.
In an embodiment of the present invention, also include a rail structure between the first ground of above-mentioned each supporting construction and the second ground.
In an embodiment of the present invention, above-mentioned each supporting construction more comprises at least one fixed component, and it is arranged between the first ground and the second ground.
In an embodiment of the present invention, above-mentioned fixed component comprises a protuberance and a depressed part, and it is arranged at respectively the side surface of the first ground and the second ground.
In an embodiment of the present invention, the base plate of said frame more comprises at least one opening, and each supporting construction also comprises at least one buckling piece, and it is arranged at the bottom of the first ground or the second ground, and protrudes base plate from the opening part of base plate.
In an embodiment of the present invention, above-mentioned backlight module also comprises a bonding coat, and it is disposed between base plate and the supporting construction.
In an embodiment of the present invention, the base plate of said frame also comprises at least one opening, and each supporting construction also comprises at least one moving sheet, and it is arranged at the bottom of the first ground or the second ground, and protrudes base plate from the opening part of base plate.
In an embodiment of the present invention, the base plate of said frame also comprises at least one the first opening and at least one the second opening, and each supporting construction also comprises at least one buckling piece and at least one moving sheet.Buckling piece is arranged at one of them bottom of the first ground and the second ground, and protrudes base plate and be buckled on the base plate from described first opening part of base plate.Moving sheet is arranged at another bottom of the first ground and the second ground, and protrudes base plate from described second opening part of base plate.
In an embodiment of the present invention, above-mentioned backlight module comprises that also a plurality of bloomings are disposed at the top of diffuser plate.
The invention provides another kind of backlight module, it comprises a framework, a plurality of fluorescent tube, a diffuser plate and a plurality of supporting construction.Framework has a base plate.Fluorescent tube is disposed in the framework, and diffuser plate is arranged at the top of fluorescent tube.Support structure configuration is on base plate, and wherein each supporting construction comprises one first ground, at least one lamp tube supporting part, one second ground, at least one fluorescent tube fixed part, one the 3rd ground and at least one thimble.Lamp tube supporting part is disposed on the first ground, and the fluorescent tube fixed part is disposed on the second ground, and wherein the corresponding fluorescent tube fixed part of each lamp tube supporting part arranges, in order to support and to fix one of them of these fluorescent tubes.The 3rd ground is between the first ground and the second ground, and the 3rd ground and first and second ground adjacency.Thimble is arranged on the 3rd ground, in order to supporting diffusion plate.
In an embodiment of the present invention, also include one first rail structure between the first ground of above-mentioned each supporting construction and the 3rd ground, also include one second rail structure between the second ground and three grounds.
In an embodiment of the present invention, above-mentioned each supporting construction more comprises at least one fixed component, and it is arranged between the first ground and the 3rd ground and between the second ground and the 3rd ground.
In an embodiment of the present invention, above-mentioned fixed component comprises a protuberance and a depressed part, and it is arranged at respectively the side surface of the first ground and the 3rd ground, and the side surface of the second ground and the 3rd ground.
In an embodiment of the present invention, the base plate of said frame also comprises at least one opening, and each supporting construction also comprises at least one buckling piece, and it is arranged at the bottom of the first ground or the second ground, and protrudes base plate from the opening part of base plate.
In an embodiment of the present invention, above-mentioned backlight module also comprises a bonding coat, and it is disposed between base plate and the supporting construction.
In an embodiment of the present invention, the base plate of said frame also comprises at least one opening, and each supporting construction also comprises at least one moving sheet, and it is arranged at the bottom of the first ground or the second ground, and protrudes base plate from the opening part of base plate.
In an embodiment of the present invention, the base plate of said frame also comprises at least one the first opening and at least one the second opening, and each supporting construction more comprises at least one buckling piece and at least one moving sheet.Buckling piece is arranged at one of them bottom of the first ground and the second ground, and protrudes base plate and be buckled on the base plate from described first opening part of base plate.Moving sheet is arranged at another bottom of the first ground and the second ground, and protrudes base plate from described second opening part of base plate.
In an embodiment of the present invention, above-mentioned backlight module also comprises a plurality of bloomings, and it is disposed at the top of diffuser plate.
The present invention is made of one thimble, lamp tube supporting part or fluorescent tube fixed part and ground (the first ground or the second ground) because of employing the supporting construction of moulding, to separate to fall within the base plate diverse location and compare with existing bracing frame and thimble, except can will have bracing frame now and thimble two ground area occupied effectively reduce, increasing even back with the area that increases reflector plate recycling light is outside one's consideration, be to utilize the mould die sinking to be made of one the structure of moulding because of supporting construction also, and reduce the manufacturing cost of supporting construction.In addition, assemble supporting construction because of the structure of utilizing buckling piece and moving sheet in the present invention, except allowing supporting construction more firmly with base plate is combined, the fixed form of this fluorescent tube is external control, so when single fluorescent tube need be changed, need not dismantle diffuser plate and blooming and can carry out the lamp tube replacement operation, so supporting construction can more easily be assembled and the maintenance of dismantling to carry out rapidly fluorescent tube.
For above and other objects of the present invention, feature and advantage can be become apparent, embodiment cited below particularly, and cooperate accompanying drawing to be described in detail below.
Description of drawings
Figure 1A is the synoptic diagram of a kind of backlight module of one embodiment of the invention;
Figure 1B is the synoptic diagram after Figure 1A backlight module is removed diffuser plate and blooming;
Fig. 2 A is the synoptic diagram of the supporting construction of first embodiment of the invention;
Fig. 2 B is the synoptic diagram that Fig. 2 A supporting construction is opened;
Fig. 3 A is the synoptic diagram that the supporting construction of second embodiment of the invention is fixed in base plate;
Fig. 3 B is the decomposing schematic representation of Fig. 3 A supporting construction and base plate;
Fig. 4 A is that the supporting construction of third embodiment of the invention is fixed in the synoptic diagram on the base plate;
Fig. 4 B is the synoptic diagram that the supporting construction on Fig. 4 A base plate is opened;
Fig. 5 A is the synoptic diagram that the supporting construction of fourth embodiment of the invention is fixed in base plate;
Fig. 5 B is the decomposing schematic representation of Fig. 5 A supporting construction and base plate;
Fig. 6 A is that the supporting construction of fifth embodiment of the invention is fixed in the synoptic diagram on the base plate;
Fig. 6 B is the synoptic diagram that the supporting construction on Fig. 6 A base plate is opened.
Embodiment
Figure 1A is the synoptic diagram of the backlight module of one embodiment of the invention, and Figure 1B is that Figure 1A backlight module is removed diffuser plate and blooming synoptic diagram afterwards.Please also refer to Figure 1A and Figure 1B, the backlight module 100 of present embodiment is down straight aphototropism mode set 100, it can be applicable to display for example in the liquid crystal display, and it comprises a framework 110, a plurality of fluorescent tube 120, a diffuser plate 130, a plurality of supporting construction 140 and a plurality of blooming 160.Framework 110 has a base plate 110a, and fluorescent tube 120 is disposed in the framework 110.Diffuser plate 130 is arranged at the top of fluorescent tube 120, and blooming 160 is disposed at the top of diffuser plate 130.Supporting construction 140 is disposed on the base plate 110a, in order to support luminous tube 120 and diffuser plate 130.
Specifically, diffuser plate 130 is arranged at fluorescent tube 120 tops, its role is to improve the distribution of the area source that fluorescent tube 120 provides, so that bright dipping is comparatively even.In addition, also dispose blooming piece 160 on the diffuser plate 130, generally speaking, blooming piece 160 can comprise rhombus lens, diffusion sheet, light-collecting piece, screening glass or other diaphragm, with further optimization light effect.
Further, in the present embodiment, supporting construction 140 is support luminous tube 120, breaks with avoiding fluorescent tube 120 bump base plate 110a to prevent that fluorescent tube 120 is sagging.In addition, supporting construction 140 also can be used to supporting diffusion plate 130, to suppress warpage and the distortion of the blooming 160 on diffuser plate 130 and the diffuser plate 130, helps to improve the light quality that of backlight module 100.Below will utilize five different embodiment that supporting construction 140 is described.
The first embodiment
Fig. 2 A is the synoptic diagram of the supporting construction of first embodiment of the invention.Please refer to Fig. 2 A, in the first embodiment, each supporting construction 140 comprises one first ground 142a, at least one lamp tube supporting part 144, one second ground 142b, at least one fluorescent tube fixed part 145 and at least one thimble 146.Lamp tube supporting part 144 is disposed on the first ground 142a, and the second ground 142b is in abutting connection with the first ground 142a.Fluorescent tube fixed part 145 is disposed on the second ground 142b, and wherein each lamp tube supporting part 144 corresponding fluorescent tube fixed part 145 arranges, in order to support and a fixing wherein fluorescent tube 120.Thimble 146 is arranged at the first ground 142a or the second ground 142b upper (graphic 2A be arranged at take thimble 146 the first ground 142a is upper to be illustrated as example), and thimble 146 is in order to supporting diffusion plate 130 (please refer to Figure 1A).
Furthermore, please also refer to Figure 1A and Fig. 2 A, thimble 146 materials can be metal or plastics, and the shape of thimble 146 can be cylindric or coniform, in order to warpage and the distortion of supporting diffusion plate 130 with the blooming 160 on inhibition diffuser plate 130 and the diffuser plate 130.Therefore, under the environment of high temperature, diffuser plate 130 can dwindle with the deflection of blooming 160, to reduce the phenomenon that shows uneven (display mura).
Fig. 2 B is the synoptic diagram that Fig. 2 A supporting construction is opened.In the present embodiment, more include a rail structure 143a between the first ground 142a of each supporting construction 140 and the second ground 142b, so when carrying out the assembling of fluorescent tube 120, can first fluorescent tube 120 be inserted the lamp tube supporting part 144 on the first ground 142a, then the second ground 142b is slipped in the first ground 142a by rail structure 143a, and utilize the fluorescent tube fixed part 145 on the second ground 142b that fluorescent tube 120 is fixed on the supporting construction 140.
Specifically, in the present embodiment, the design of rail structure 143a is that the side surface at the first ground 142a is designed with one and protrudes the plane, L-type structure for example, and the second ground 142b is slidedly arranged on the protrusion plane of the first ground 142a with a thick plane.So, when single fluorescent tube 120 needs to change, only need to utilize rail structure 143a to slide the second ground 142b and withdraw from outside the first ground 142a, just can make supporting construction 140 present opening, just can carry out the replacing operation of fluorescent tube 120.Therefore, present embodiment can allow supporting construction 140 more easily assemble and the maintenance of dismantling to carry out rapidly fluorescent tube 120.
It is worth mentioning that; the present invention does not limit form and the fixed form of the first ground 142a and the second ground 142b; although the first ground 142a that reaches mentioned herein is embodied as L-type with the second ground 142b and utilizes slide rail to engage the collocation of mode with a thick plane; but known other can reach the structural design of equal location fixed effect; still belong to the adoptable technical scheme of the present invention, do not break away from the scope of institute of the present invention wish protection.
The second embodiment
Fig. 3 A is the synoptic diagram that the supporting construction of second embodiment of the invention is fixed in base plate, and Fig. 3 B is the decomposing schematic representation of Fig. 3 A supporting construction and base plate.Please also refer to Fig. 3 A and Fig. 3 B, present embodiment is similar to the first embodiment, and its difference is: in the present embodiment, each supporting construction 140 more comprises at least one fixed component 147, and it is arranged between the first ground 142a and the second ground 142b.Fixed component 147 comprises a protuberance 147a and a depressed part 147b, and protuberance 147a is arranged at the side surface of the first ground 142a, and depressed part 147b is arranged at the side surface of the second ground 142b.
Please more simultaneously with reference to figure 3A and 3B, when carrying out the assembling of fluorescent tube 120, first fluorescent tube 120 is inserted lamp tube supporting part 144, then the side protuberance 147a with the upper lamp tube supporting part 144 of the first ground 142a is inserted in the side recesses 147b of the upper fluorescent tube fixed part 145 of the second ground 142b along the direction of arrow, then whole supporting construction 140 is fixed on the base plate 110a.
In addition, in the present embodiment, backlight module 100 more can comprise a bonding coat 150, and it is disposed between base plate 110a and the supporting construction 140, in order to supporting construction 140 is fixed on the base plate 110a, and fluorescent tube 120 also is fixed on the base plate 110a via supporting construction 140.In addition, fluorescent tube 120 on the 145 effective restrictions of fluorescent tube fixed part and the fixed lamp tube support portion 144, and bonding coat 150 also makes supporting construction 140 stablize and firmly to be fixed on the base plate 110a, makes fluorescent tube 120 that good fixed effect can be arranged so present embodiment can reach.
Further, in the present embodiment, the side surface of the first ground 142a has one to protrude the plane, L-type structure for example, the second ground 142b and the first ground 142a are complementary structure, and it can be sticked on the protrusion plane of the first ground 142a, for example the inverted L shape structure.It is worth mentioning that; the present invention does not limit form and the fixed form of the first ground 142a and the second ground 142b; although the first ground 142a that reaches mentioned herein is embodied as L-type engages mode with the inverted L shape utilization collocation with the second ground 142b; but known other can reach the structural design of equal location fixed effect; still belong to the adoptable technical scheme of the present invention, do not break away from the scope of institute of the present invention wish protection.
The 3rd embodiment
Fig. 4 A is that the supporting construction of third embodiment of the invention is fixed in the synoptic diagram on the base plate.Please refer to Fig. 4 A, present embodiment is similar to the first embodiment, its difference is: in the present embodiment, base plate 110a more comprises at least one the first opening 112a and at least one the second opening 112b, and each supporting construction 140 more comprises at least one buckling piece 148 and at least one moving sheet 149.Buckling piece 148 is arranged at one of them bottom (graphic 4A be arranged at take buckling piece 148 the first ground 142a is upper to be illustrated for example) of the first ground 142a and the second ground 142b, and from the first opening 112a protrusion base plate 110a of base plate 110a and be buckled on the base plate 110a.Moving sheet 149 is arranged at another bottom (graphic 4A be arranged at take moving sheet 149 the second ground 142b is upper to be illustrated for example) of the first ground 142a and the second ground 142b, and from the second opening 112b protrusion base plate 110a of base plate 110a.
Fig. 4 B is the synoptic diagram that the supporting construction on Fig. 4 A base plate is opened.Please also refer to Fig. 4 A and Fig. 4 B, when carrying out the assembling of fluorescent tube 120, can first fluorescent tube 120 be inserted the lamp tube supporting part 144 on the first ground 142a, then the second ground 142b is slipped in the first ground 142a by rail structure 143a, and utilize the fluorescent tube fixed part 145 on the second ground 142b that fluorescent tube 120 is fixed on the supporting construction 140, then whole supporting construction 140 is fixed on the base plate 110a.
Specifically, when supporting construction 140 is fixed on the base plate 110a, buckling piece 148 can protrude base plate 110a from the first opening 112a of base plate 110a and be buckled on the base plate 110a, and moving sheet 149 can protrude base plate 110a from the second opening 112b of base plate 110a.In the present embodiment, because utilizing the buckle structure mode of buckling piece 148 and moving sheet 149, fluorescent tube 120 is fixed on the base plate 110a firmly, so that fluorescent tube 120 can have good fixed effect via supporting construction 140.
In addition, the supporting construction 140 of the fluorescent tube 120 of present embodiment is external control, so when single fluorescent tube 120 needs to change, only need stir moving sheet 149 just can make supporting construction 140 present opening, just can carry out the replacing operation of fluorescent tube 120, therefore supporting construction 140 can more easily be assembled and the maintenance of dismantling rapidly to make things convenient for fluorescent tube 120.
The 4th embodiment
Fig. 5 A is the synoptic diagram that the supporting construction of fourth embodiment of the invention is fixed in base plate.Present embodiment is similar to the second embodiment, its difference is: in the present embodiment, each supporting construction 140 comprises one first ground 142a, at least one lamp tube supporting part 144, one second ground 142b, at least one fluorescent tube fixed part 145, one the 3rd ground 142c and at least one thimble 146.Lamp tube supporting part 144 is disposed on the first ground 142a, and fluorescent tube fixed part 145 is disposed on the second ground 142b, and wherein each lamp tube supporting part 144 corresponding fluorescent tube fixed part 145 arranges, in order to support and a fixing wherein fluorescent tube 120.The 3rd ground 142c is between the first ground 142a and the second ground 142b, and the 3rd ground 142c and the first ground 142a and the second ground 142b adjacency.Thimble 146 is arranged on the 3rd ground 142c, and thimble 146 is in order to supporting diffusion plate 130 (please refer to Figure 1A).
Fig. 5 B is the decomposing schematic representation of Fig. 5 A supporting construction and base plate.Please refer to Fig. 5 B, in the 4th embodiment, each supporting construction 140 more comprises at least one fixed component 147, and it is arranged between the first ground 142a and the 3rd ground 142c and the second ground 142b and the 3rd ground 142c.Fixed component 147 comprises a protuberance 147a and a depressed part 147b, and protuberance 147a is arranged at the side surface of the first ground 142a and the second ground 142b, and depressed part 147b is arranged at the both side surface of the 3rd ground 142c.
Further, in the present embodiment, the side surface of the first ground 142a has one to protrude the plane, L-type structure for example, the side surface of the second ground 142b has a recessed plane, inverted L shape structure for example, and the 3rd ground 142c and the first ground 142a and the second ground 142b are all complementary structure, it can be sticked on the protrusion plane of the first ground 142a the recessed plane with the second ground 142b.It is worth mentioning that; the present invention does not limit form and the fixed form of the first ground 142a, the second ground 142b and the 3rd ground 142c; although the first ground 142a, the second ground 142b and the 3rd ground 142c that reaches mentioned herein is embodied as L-type engages mode with the inverted L shape utilization collocation; but known other can reach the structural design of equal location fixed effect; still belong to the adoptable technical scheme of the present invention, do not break away from the scope of institute of the present invention wish protection.
Please also refer to Fig. 5 A and 5B, when carrying out the assembling of fluorescent tube 120, first the side protuberance 147a of the upper lamp tube supporting part 144 of the first ground 142a is inserted in the depressed part 147b of the 3rd ground 142c one side surface, with fluorescent tube 120 to entering lamp tube supporting part 144, and then the 3rd ground 142c opposite side depression in the surface 147b of section is inserted in the side protuberance 147a of the upper fluorescent tube fixed part 145 of the second ground 142b, then whole supporting construction 140 is fixed on the base plate 110a.
In addition, in the present embodiment, backlight module 100 more can comprise a bonding coat 150, and it is disposed between base plate 110a and the supporting construction 140, in order to supporting construction 140 is fixed on the base plate 110a, and fluorescent tube 120 also is fixed on the base plate 110a via supporting construction 140.
In the present embodiment, owing to Duo one the 3rd ground 142c than the second embodiment, so that the change of the floorage of supporting construction 140 is larger, and then increased the structural strength of supporting construction 140.The supporting construction 140 of present embodiment, diffuser plate 130 and blooming 160 that it can be applicable to support the large scale liquid crystal display also are suitable for supporting long fluorescent tube 120.In addition, fluorescent tube fixed part 145 can effectively limit and fixed lamp tube support portion 144 on fluorescent tube 120, and bonding coat 150 also makes supporting construction 140 stablize and firmly to be fixed on the base plate 110a, makes fluorescent tube 120 that good fixed effect can be arranged so present embodiment can reach.
The 5th embodiment
Fig. 6 A is that the supporting construction of fifth embodiment of the invention is fixed in the synoptic diagram on the base plate.Please refer to Fig. 6 A, present embodiment is similar to the 4th embodiment, its difference is: in the present embodiment, base plate 110 more comprises at least one the first opening 112a and at least one the second opening 112b, and each supporting construction 140 more comprises at least one buckling piece 148 and at least one moving sheet 149.Buckling piece 148 is arranged at one of them bottom (graphic 6A be arranged at take buckling piece 148 the first ground 142a is upper to be illustrated for example) of the first ground 142a and the second ground 142b, and from the first opening 112a protrusion base plate 110a of base plate 110a and be buckled on the base plate 110a.Moving sheet 149 is arranged at another bottom (graphic 6A be arranged at take moving member 149 the second ground 142b is upper to be illustrated for example) of the first ground 142a and the second ground 142b, and from the second opening 112b protrusion base plate 110a of base plate 110a.
Specifically, in the present embodiment, more include one first rail structure 143b between the first ground 142a of each supporting construction 140 and the 3rd ground 142c, more include one second rail structure 143c between the second ground 142b and the 3rd ground 142c.So when carrying out the assembling of fluorescent tube 120, can first fluorescent tube 120 be inserted the lamp tube supporting part 144 on the first ground 142a, then the 3rd ground 142c is slipped in the first ground 142a by the first rail structure 143b, slip into the second ground 142b in the first ground 142a and the 3rd ground 142c that has organized by rail structure 143a again, and utilize the fluorescent tube fixed part 145 on the second ground 142b that fluorescent tube 120 is fixed on the supporting construction 140, then whole supporting construction 140 is fixed on the base plate 110a.
Further, when supporting construction 140 is fixed on the base plate 110a, buckling piece 148 can protrude base plate 110a from the first opening 112a of base plate 110a and be buckled on the base plate 110a, and moving sheet 149 can protrude base plate 110a from the second opening 112b of base plate 110a.In the present embodiment, because utilizing the mode of this buckle structure, fluorescent tube 120 is fixed on the base plate 110a firmly via supporting construction 140, so that fluorescent tube 120 can have good fixed effect.
Fig. 6 B is the synoptic diagram that the supporting construction on Fig. 6 A base plate is opened.Please also refer to Fig. 6 A and Fig. 6 B, because the supporting construction 140 of the fluorescent tube 120 of present embodiment is external control, so when single fluorescent tube 120 needs to change, only need stir moving sheet 149 just can make supporting construction 140 present opening, just can carry out the replacing operation of fluorescent tube 120, supporting construction 140 can more easily be assembled and rapidly dismounting.
In the present embodiment, owing to Duoed one the 3rd ground 142c than the 3rd embodiment, so that the floorage of supporting construction 140 becomes larger, and then increased the structural strength of supporting construction 140.The supporting construction 140 of present embodiment, diffuser plate 130 and blooming 160 that it can be applicable to support the large scale liquid crystal display also are suitable for supporting long fluorescent tube 120.
In sum, the present invention has following feature ﹠ benefits at least:
(1) by lamp tube supporting part and the fluorescent tube fixed part of supporting construction, in order to fixed lamp tube, wherein only need by simple fixed component or fastener and moving sheet, just can be fixed on securely fluorescent tube on the supporting construction, therefore comparatively convenient in assembling, and be beneficial to heavy industry.
(2) same supporting construction can be fixed a plurality of fluorescent tubes, and can change the quantity of lamp tube supporting part and fluorescent tube fixed part, or changes the ground quantity of supporting construction, with the maximization in response to the liquid crystal display size.
(3) the first ground, lamp tube supporting part and the thimble of supporting construction or the second ground, fluorescent tube fixed part and thimble, all utilize the mould die sinking to be made of one the structure of moulding, the area that so can effectively increase reflector plate recycling light increases all neat degree backlight, help to improve the light quality that of backlight module, and can also reduce manufacturing cost.
(4) dispose thimble in supporting construction, in order to supporting diffusion plate and blooming, to suppress warpage and the distortion of the blooming on diffuser plate and the diffuser plate, so help to improve the light quality that of backlight module.
Although the present invention discloses as above with embodiment; so it is not to limit the present invention; have in the technical field under any and usually know the knowledgeable; without departing from the spirit and scope of the present invention; when doing a little change and retouching, so protection scope of the present invention is worked as with being as the criterion that claim was defined.
Claims (6)
1. a backlight module is characterized in that, comprising:
One framework, it has a base plate;
A plurality of fluorescent tubes are disposed in the described framework;
One diffuser plate is arranged at the top of those fluorescent tubes; And
A plurality of supporting constructions are disposed on the described base plate, and wherein each supporting construction comprises:
One first ground;
At least one lamp tube supporting part is disposed on described the first ground;
One second ground, it is in abutting connection with described the first ground;
At least one fluorescent tube fixed part is disposed on described the second ground, and wherein the corresponding fluorescent tube fixed part of each lamp tube supporting part arranges, in order to support and to fix one of them of those fluorescent tubes; And
At least one thimble is arranged on this first ground or this second ground, in order to support described diffuser plate;
Wherein, also include a rail structure between described first ground of each supporting construction and described the second ground.
2. backlight module as claimed in claim 1 is characterized in that, the base plate of described framework also comprises at least one opening; And
Each supporting construction also comprises at least one buckling piece, is arranged at described the first ground or the bottom of described the second ground, and protrudes described base plate from the described opening part of described base plate.
3. backlight module as claimed in claim 1 is characterized in that, also comprises a bonding coat, is disposed between described base plate and the described supporting construction.
4. backlight module as claimed in claim 1 is characterized in that, wherein:
This base plate of described framework also comprises at least one opening; And
Each supporting construction also comprises at least one moving sheet, is arranged at described the first ground or the bottom of described the second ground, and protrudes described base plate from the described opening part of described base plate.
5. backlight module as claimed in claim 1 is characterized in that, wherein:
The described base plate of described framework also comprises at least one the first opening and at least one the second opening; And each supporting construction also comprises:
At least one buckling piece is arranged at one of them bottom of described the first ground and described the second ground, and protrudes described base plate and be buckled on the described base plate from described first opening part of described base plate;
At least one moving sheet is arranged at another bottom of described the first ground and described the second ground, and protrudes described base plate from described second opening part of described base plate.
6. backlight module as claimed in claim 1 is characterized in that, also comprises a plurality of bloomings, is disposed at the top of described diffuser plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810201150 CN101725927B (en) | 2008-10-14 | 2008-10-14 | Back light module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810201150 CN101725927B (en) | 2008-10-14 | 2008-10-14 | Back light module |
Related Child Applications (1)
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| CN201210298635.5A Division CN102853335B (en) | 2008-10-14 | 2008-10-14 | Backlight module |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101881424B (en) * | 2010-06-17 | 2011-11-16 | 深圳市华星光电技术有限公司 | Backlight module and lamp tube support frame thereof |
| US8485685B2 (en) | 2010-06-17 | 2013-07-16 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Backlight module and lamp fastener thereof |
| CN102278704A (en) * | 2011-08-04 | 2011-12-14 | 南京中电熊猫液晶显示科技有限公司 | Diffusion plate with supporting structure |
| CN108061257A (en) * | 2017-12-08 | 2018-05-22 | 广州创维平面显示科技有限公司 | A kind of backlight module and display device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1632664A (en) * | 2005-01-27 | 2005-06-29 | 友达光电股份有限公司 | Backlight assembly |
| CN1825182A (en) * | 2005-02-24 | 2006-08-30 | 友达光电股份有限公司 | Backlight module |
| CN101109868A (en) * | 2006-07-21 | 2008-01-23 | 中华映管股份有限公司 | Directly-down backlight component |
| CN201017146Y (en) * | 2007-03-29 | 2008-02-06 | 中华映管股份有限公司 | Directly-down backlight component |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1632664A (en) * | 2005-01-27 | 2005-06-29 | 友达光电股份有限公司 | Backlight assembly |
| CN1825182A (en) * | 2005-02-24 | 2006-08-30 | 友达光电股份有限公司 | Backlight module |
| CN101109868A (en) * | 2006-07-21 | 2008-01-23 | 中华映管股份有限公司 | Directly-down backlight component |
| CN201017146Y (en) * | 2007-03-29 | 2008-02-06 | 中华映管股份有限公司 | Directly-down backlight component |
Non-Patent Citations (1)
| Title |
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| JP特开2007-128817A 2007.05.24 |
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