Backlight module
Technical field
The utility model relates to a kind of backlight module, particularly a kind of backlight module of substituting the circuit of light sources plate.
Background technology
LCD (liquid crystal displays) becomes the indispensable part of modern, wherein common with LCD TV and computer screen again, more expand to the relevant electronic product of personal information, as products such as intelligent mobile phone, palm Game device, digital frame and e-book.LCD must cooperate backlight module just can reach the effect of development.Known backlight module mainly is made up of light source, LGP, optical diaphragm group and other fixation kit, the most common now light source comprises CCFL (cold cathode tube) and light emitting diode (light emitting diode, LED), wherein light emitting diode replaces CCFL in recent years gradually because of it has advantages such as not containing mercury, high briliancy and high color saturation.
Backlight module is all towards lightening design now, and led light source has the advantage that volume is little, brightness is high, progressively develops into the backlight module with the led light source encapsulation then.But led light source is installed in narrow and small confined space, and a large amount of heat energy that produced after light source starts are difficult to distribute, and often causes the led light source life-span to reduce.If single LEDs damages or the partial LED luminous efficacy reduces, will influence the display quality of whole backlight module, the possibility whole backlight module is scrapped maybe need take time and effort backlight module is disassembled the new light source of replacement when the time comes, may improve the risk of blooming piece scratch or foreign body intrusion in its process.
Disclose a kind of backlight module in TaiWan, China publication the 200949357th font size, it utilizes a clamping device and an alignment pin that the led light source circuit board is fixed on the light source fixing component, and light source fixing component can be for pull with convenient displacement led light source circuit board.On this light source fixing component, be provided with a clip connection device, in order to light source fixing component is assembled in backlight module and fixing.Yet this led light source circuit board only obtains in the subregion of light source fixing component to support, this circuit board easily in the process of substituting by scratch or distortion.
Disclose a kind of backlight module in the TaiWan, China bulletin patent M315841 font size, it provides a fixed head that LED bars is fixed on it, the damage of LED bars when substituting with minimizing.But this fixed head and LED bars are by the rectangular slot shape breach on the storing shell of backlight module, reach the functional of swapping type light source, and this breach can influence the structural strength of backlight module integral body.And LED bars is to be attached on this fixed head with screw, so the dismounting diode bars of giving out light is very inconvenient, and not only expending man-hour increases cost simultaneously.
Summary of the invention
The purpose of this utility model is to provide a kind of backlight module, to substitute in the process at the circuit of light sources plate, reduces by the risk of blooming piece scratch or foreign body intrusion, increases the service life of display.
Another purpose of the present utility model is to provide a kind of backlight module, to reach the functional of swapping type light source, keeps the structural strength of backlight module integral body simultaneously.
A purpose more of the present utility model is to provide a kind of backlight module, substitutes the efficient of circuit of light sources plate with raising.
According to above-mentioned purpose, technical characterictic of the present utility model is: a kind of backlight module is characterized in that: comprising: a circuit of light sources plate is provided with a plurality of illuminators on it; One fixed light source assembly, in order to the rigid support of this circuit of light sources plate to be provided, this fixed light source assembly have an adhesion layer with so that this circuit of light sources plate and this fixed light source assembly fit together; And a housing, have a storage tank, through this circuit of light sources plate of assembling and this fixed light source assembly for being arranged at movably in this storage tank.
Another technical characterictic of the present utility model is: a kind of backlight module is characterized in that: comprising: a circuit of light sources plate is provided with a plurality of illuminators on it; One fixed light source assembly, in order to the rigid support of this circuit of light sources plate to be provided, this fixed light source assembly has the adhesion layer that a clamping part, side plate and are arranged at this side plate, and this circuit of light sources plate sees through this adhesion layer and is attached on this side plate to fit together with this fixed light source assembly; And a housing, have a storage tank, through this circuit of light sources plate of assembling and this fixed light source assembly for being arranged in this storage tank the gripping function when this clamping part of this fixed light source assembly provides this fixed light source assembly to move movably.
A technical characterictic more of the present utility model is: a kind of backlight module is characterized in that: comprising: a circuit of light sources plate is provided with a plurality of light emitting diodes on it; One fixed light source assembly, have a clamping part, a base plate, side plate and and be arranged at the adhesion layer of this side plate, this circuit of light sources plate sees through this adhesion layer and is attached on this side plate to fit together with this fixed light source assembly, this base plate, this side plate are mutually perpendicular structure, in order to the rigid support of this circuit of light sources plate to be provided; And a housing, have a storage tank, through this circuit of light sources plate of assembling and this fixed light source assembly for being arranged in this storage tank the gripping function when this clamping part of this fixed light source assembly provides this fixed light source assembly to move versatilely.
The utility model is substituted in the process at circuit of light sources plate and fixed light source assembly, can reduce the risk of blooming piece scratch or foreign body intrusion, increases the service life of display.And the fixed light source assembly has strong structure, makes to be difficult for producing malformation in the process of substituting.In addition, the gripping function that the clamping part of fixed light source assembly provides, the substituting of be more convenient for fixed light source assembly and circuit of light sources plate.
The utility model is because the circuit of light sources plate is to see through adhesion layer to be attached at the fixed light source assembly, so the displacement of circuit of light sources plate is very convenient, can reduce the time of disassembling circuit of light sources plate and fixed light source assembly.And adhesion layer is preferably a heat conduction adhesive tape, more helps the heat radiation of illuminator.
Description of drawings
Fig. 1 is the structural representation of fixed light source assembly and circuit of light sources plate in the backlight module of the present utility model.
Fig. 2 is the detail structure chart of circuit of light sources plate of the present utility model.
Fig. 3 is the detail structure chart of fixed light source assembly of the present utility model.
Fig. 4 finishes the schematic diagram of assembling for fixed light source assembly of the present utility model and circuit of light sources plate.
Fig. 5 is arranged at the structural representation of housing movably for fixed light source assembly in the backlight module of the present utility model and circuit of light sources plate.
Fig. 6 is submerge the fully structural representation of housing of fixed light source assembly in the backlight module of the present utility model and circuit of light sources plate.
Fig. 7 is the structural representation of the coverboard of backlight module of the present utility model.
The specific embodiment
Fig. 1 is the structural representation of fixed light source assembly 10 and circuit of light sources plate 20 in the backlight module of the present utility model.In the utility model, fixed light source assembly 10 is a rigid structure, it comprises side plate 102, a base plate 104 and a clamping part 106, circuit of light sources plate 20 is provided with a plurality of illuminators, light source for backlight module, described illuminator can be a light emitting diode or an effect illuminator, and fixed light source assembly 10 is in order to the rigid support of circuit of light sources plate 20 to be provided.
As shown in Figure 1, the side plate 102 of fixed light source assembly 10 and base plate 104 form L shaped framework, provide circuit of light sources plate 20 strong carrying, the side plate 102 of fixed light source assembly 10, base plate 104 and clamping part 106 are mutually perpendicular structure, not only simple in structure being easy to made, and structure is strong not yielding.
Fig. 2 is the detail structure chart of circuit of light sources plate 20 of the present utility model, and Fig. 3 is the detail structure chart of fixed light source assembly 10 of the present utility model, and Fig. 4 finishes the schematic diagram of assembling for fixed light source assembly 10 of the present utility model and circuit of light sources plate 20.
See also Fig. 1, Fig. 2, Fig. 3 and Fig. 4, fixed light source assembly 10 has an adhesion layer 122, adhesion layer 122 is arranged on the side plate 102 of fixed light source assembly 10, circuit of light sources plate 20 sees through adhesion layer 122 and is attached on the side plate 102 of fixed light source assembly 12, to fit together with fixed light source assembly 10, adhesion layer 122 is preferably a heat conduction adhesive tape, not only can provide the function of sticking together, also can help heat conduction, help the heat radiation of illuminator.
See also Fig. 1, Fig. 2, Fig. 3 and Fig. 4, has a slotted eye 124 on the base plate 104 of fixed light source assembly 10, circuit of light sources plate 20 have one with the suitable projection 202 of this slotted eye 124, the projection 202 of circuit of light sources plate 20 designs through suitable with the slotted eye 124 of fixed light source assembly 10, and projection 202 just can be chimeric mutually with slotted eye 124.
See also Fig. 1, Fig. 2, Fig. 3 and Fig. 4, when fixed light source assembly 10 is assembled with circuit of light sources plate 20, slotted eye 124 with projection 202 secured in alignment light source assemblies 10 base plates 104 of circuit of light sources plate 20, when projection 202 and slotted eye 124 are chimeric, circuit of light sources plate 20 also sees through adhesion layer 122 and is attached on the side plate 102 of fixed light source assembly 10, and fixed light source assembly 10 is finished assembling as shown in Figure 4 with circuit of light sources plate 20.
Be noted that projection 202 not only provides the contraposition of fixed light source assembly 10 with circuit of light sources plate 20 with slotted eye 124, also can prevent fixed light source assembly 10 and the skew of circuit of light sources plate 20 positions, and the situation that walks.
Fig. 5 is arranged at the structural representation of housing 40 movably for fixed light source assembly in the backlight module of the present utility model 10 and circuit of light sources plate 20, and Fig. 6 is submerge the fully structural representation of housing 40 of fixed light source assembly in the backlight module of the present utility model 10 and circuit of light sources plate 20.
See also Fig. 5 and Fig. 6, backlight module of the present utility model comprises a housing 40, its glue frame for forming through suitable design mold, housing 40 has a storage tank 402, its size is suitable with fixed light source assembly 10, and fixed light source assembly 10 and circuit of light sources plate 20 are for being arranged at movably in the storage tank 402.In addition, be provided with slide rail in the storage tank 402, conveniently move, substitute in order to fixed light source assembly 10.
See also Fig. 5 and Fig. 6, move or during pull in fixed light source assembly 10 and circuit of light sources plate 20, the clamping part 106 of fixed light source assembly 10 can provide the gripping function, therefore be more convenient for the substituting of fixed light source assembly 10 and circuit of light sources plate 20, and the clamping part 106 of fixed light source assembly 10 is suitable with the openings of sizes of the storage tank 402 of housing 40.Therefore, when fixed light source assembly 10 submerges storage tank 402, clamping part 106 just can cover the opening of storage tank 402, only stay a bit of slit, convenient fixed light source assembly 10 is extracted out from clamping part 106, fixed light source assembly 10 and circuit of light sources plate 20 submerge fully housing 40 storage tank 402 as shown in Figure 6.
Fig. 7 is the structural representation of the coverboard 50 of backlight module of the present utility model.Backlight module of the present utility model more comprise one with the coverboard 50 of housing 40 assembling, coverboard 50 is positioned at the back side of backlight module.In the utility model, coverboard 50 has a lockhole 502, and fixed light source assembly 10 has a locating hole 140 corresponding with this lockhole 502.When fixed light source assembly 10 and circuit of light sources plate 20 submerge the storage tank 402 of housing 40 fully, lockhole 502 on the coverboard 50 sees through screw with the locating hole of fixed light source assembly 10 140 and locks mutually, so that fixed light source assembly 10 and circuit of light sources plate 20 are fixed on housing 40 and the coverboard 50.If circuit of light sources plate 20 damages when needing to change, only need unload the screw and the light instrument of arranging in pairs or groups, as the yi word pattern bottle opener etc.,, fixed light source assembly 10 is pulled out by the space of clamping part 106 with storage tank 402 openings, can change operation.
In the utility model, owing to after fixed light source assembly 10 is assembled in advance with circuit of light sources plate 20, fixed, insert the storage tank 402 of housing 40 again, therefore in the process of substituting, can reduce the risk of blooming piece scratch or foreign body intrusion, increase the service life of display.And, the side plate 102 of fixed light source assembly 10 and base plate 104 form L shaped framework, side plate 102, base plate 104 and clamping part 106 are mutually perpendicular structure, therefore has strong structure, make and in the process of substituting, be difficult for producing malformation, can easily fixed light source assembly 10 and circuit of light sources plate 20 be pushed into the location, reach the functional of replaceable light source.In addition, the gripping function that the clamping part 106 of fixed light source assembly 10 provides, the substituting of be more convenient for fixed light source assembly 10 and circuit of light sources plate 20.
In the utility model, because circuit of light sources plate 20 sees through adhesion layer 122 and is attached at fixed light source assembly 12, therefore the displacement of circuit of light sources plate 20 is very convenient, the strength that only need impose a little can be separated circuit of light sources plate 20 with fixed light source assembly 12, therefore the time of disassembling circuit of light sources plate 20 and fixed light source assembly 12 can be reduced, and manufacturing cost can be reduced.And adhesion layer 122 is preferably a heat conduction adhesive tape, more helps the heat radiation of illuminator.
The foregoing description only is the Implementation Modes that provides in order to allow those skilled in the art understand this creation; the utility model is not limited in the above-mentioned specific embodiment; any those skilled in the art easily full of beard and improvement all within design of the present utility model, protection domain of the present utility model is as the criterion when looking accompanying the claim person of defining.