Content of the invention
The technical problem to be solved is to provide a kind of backlight module being capable of fixed light source assembly.
Additionally, also providing a kind of liquid crystal indicator.
To achieve these goals, embodiment of the present invention adopts the following technical scheme that：
On the one hand, a kind of backlight module is provided, including：
Backboard, including diapire, encloses the side wall being located at described diapire periphery and the multiple installations extended from described side wallArm, described diapire and described side wall enclose and set formation receiving space, the plurality of installing arm interval setting to described receiving spaceExtend；With
Light source assembly, including circuit board and be disposed on multiple light sources on described circuit board, described circuit board is installedIn the plurality of installing arm, the plurality of light source is plugged between adjacent described installing arm correspondingly.
Wherein, described backboard also includes the multiple linking arms extending from described side wall, a pair of the plurality of linking arm 1It is connected between adjacent described installing arm with answering, on the bearing of trend of described installing arm, the length of described linking arm compares instituteThe length stating installing arm is short.
Wherein, described backlight module also includes being contained in the light guide plate of described receiving space, and described light guide plate includes being connectedIncidence surface and exiting surface, described incidence surface adjoins the plurality of light source, and described exiting surface is arranged away from described diapire.
Wherein, described backlight module also includes reflector plate, and described reflector plate is located between described diapire and described light guide plate,For the light injected from described incidence surface is reflexed to described exiting surface.
Wherein, described exiting surface includes first area and the second area located at described first area periphery, partly describedCircuit board rides upon on described second area.
Wherein, described backlight module also includes being contained in the optical diaphragm group of described receiving space, described optical diaphragm groupPositioned at described exiting surface and cover described first area and partly described second area.
Wherein, described backlight module also includes light shield layer, and described light shield layer covers described second area, is used for preventing lightProject from described second area.
Wherein, the end face away from described diapire of described side wall includes the supporting surface of neighbouring described optical diaphragm group, describedLight shield layer covers described supporting surface, is used for fixing described optical diaphragm group.
Wherein, described circuit board conforms to the surface away from described diapire of the plurality of installing arm by adhered layer.
On the other hand, also provide a kind of liquid crystal indicator, including the backlight module described in as above any one and liquid crystalShow panel, described display panels are located at the light emission side of described backlight module.
Compared to prior art, the invention has the advantages that：
Backlight module described in the embodiment of the present invention, because it described, circuit board may be mounted in the plurality of installing arm,Therefore, it is possible to described light source assembly is fixed by backboard.The plurality of installing arm interval setting, the plurality of light source correspondsBe plugged in so that described light source assembly is more compact with the fit structure of described backboard between adjacent described installing arm, energyEnough reduce the integral thickness of described backlight module.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, completeSite preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based onEmbodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative workEmbodiment, broadly falls into the scope of protection of the invention.
Additionally, the explanation of following embodiment is with reference to additional diagram, the spy implementing in order to illustrate the present invention may be used toDetermine embodiment.The direction term being previously mentioned in the present invention, for example, " on ", D score, "front", "rear", "left", "right", " interior "," outward ", " side " etc., is only the direction with reference to annexed drawings, and therefore, the direction term of use is to more preferably, more clearly sayBright and understand the present invention, rather than instruction or infer the device of indication or element must have specific orientation, with specifically sidePosition construction and operation, are therefore not considered as limiting the invention.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phaseEven ", " connection ", " on being arranged on ... " should be interpreted broadly, for example, it may be being fixedly connected or removably connectingConnect, or be integrally connected；Can be to be mechanically connected；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, canTo be the connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood with concrete conditionConcrete meaning in the present invention.
Additionally, in describing the invention, unless otherwise stated, " multiple " are meant that two or more.If thisThe term of " operation " occurs in specification, it refers not only to independent operation, when cannot clearly distinguish with other operations, as long asThe effect desired by this operation that enables then is also included within this term.In addition, in this specification with "～" the numerical value model that representsEnclose refer to using "～" before and after the scope that is included as minimum of a value and maximum of numerical value recorded.In the accompanying drawings, structureSimilar or identical unit is indicated by the same numeral.
See also Fig. 1 to Fig. 3, the embodiment of the present invention provides a kind of liquid crystal indicator 100, including LCDPlate 1 and backlight module 2, described display panels 1 are located at the light emission side of described backlight module 2.Described backlight module 2 is used forDescribed display panels 1 provide the light being evenly distributed and sufficient brightness, so that described display panels 1 is normally shownShow image.
Described backlight module 2 includes backboard 21 and light source assembly 22.Described backboard 21 include diapire 211, enclose be located at describedThe side wall 212 of diapire 211 periphery and the multiple installing arms 213 extended from described side wall 212.Described diapire 211 with describedSide wall 212 encloses and sets formation receiving space 210.The plurality of installing arm 213 interval setting simultaneously extends to described receiving space 210.Described light source assembly 22 includes circuit board 221 and is disposed on the multiple light sources 222 on described circuit board 221.Described circuitPlate 221 is arranged in the plurality of installing arm 213, and the plurality of light source 222 is plugged in adjacent described installation correspondinglyBetween arm 213.
In the present embodiment, because described circuit board 221 may be mounted in the plurality of installing arm 213, therefore describedBacklight module 2 can fix described light source assembly 22 by backboard 21.The plurality of installing arm 213 interval setting, the plurality ofLight source 222 is plugged in correspondingly between adjacent described installing arm 213 so that described light source assembly 22 and described backboard 21Fit structure more compact, the integral thickness of described backlight module 2 can be reduced.
It should be understood that described side wall 212 can be formed by the side edge bending of described diapire 211.Described side wall 212 can wrapInclude end to end four wall portions of periphery around described diapire 211.Can from described side wall 212 away from described diapire 211 sideWhile being bent to form the plurality of installing arm 213.In other words, described backboard 21 can obtain pre- scale by one piece of whole plate by cuttingVery little, then by being bent to form described backboard 21.
Further, see also Fig. 4 and Fig. 5, as a kind of alternative embodiment, described backboard 21 also includes from describedMultiple linking arms 214 that side wall 212 extends, the plurality of linking arm 214 is connected to adjacent described installation correspondinglyBetween arm 213.On the bearing of trend of described installing arm 213, the length of described linking arm 214 is longer than described installing arm 213Degree short so that the plurality of light source 222 still can be plugged between adjacent described installing arm 213 correspondingly.
In the present embodiment, because the plurality of linking arm 214 is connected to adjacent described installing arm 213 correspondinglyBetween, therefore the plurality of linking arm 214 can strengthen the intensity of the plurality of installing arm 213 so that the plurality of installing arm 213Support to described light source assembly 22 is more reliable.Meanwhile, the plurality of linking arm 214 can also be used for carrying described circuit board221, increase the connection area of described circuit board 221 and described backboard 21, improve described light source assembly 22 and be attached to described backboard21 firmness.
Likewise, the plurality of linking arm 214 can also be curved away from the side of described diapire 211 by described side wall 212Folding is formed.The plurality of linking arm 214 extends to described receiving space 210.
Further, Fig. 1, Fig. 2 and Fig. 6 are seen also, as a kind of alternative embodiment, described backlight module 2 is alsoIncluding the light guide plate 23 being contained in described receiving space 210, described light guide plate 23 includes connected incidence surface 231 and exiting surface232, described incidence surface 231 adjoins the plurality of light source 222, and described exiting surface 232 is arranged away from described diapire 211.Now, instituteThe light emission side stating backlight module 2 is the side away from described diapire 211 of described exiting surface 232.Described backlight module 2 go out lightDirection is the direction (as shown by the arrows in Figure 6) being deviated from described diapire 211 by described exiting surface 232.
In the present embodiment, described incidence surface 231 adjoins the plurality of light source 222 so that described light source assembly 22 sendsLight as much as possible enter described light guide plate 23, improve the utilization rate to described light source assembly 22 for the described backlight module 2.WhenSo it is also possible to reduce the risk that the light of described light source assembly 22 region from beyond described exiting surface 232 is projected, it is to avoid impactDisplay quality to described liquid crystal indicator 100.
Preferably, described backlight module 2 also includes reflector plate 24, described reflector plate 24 be located at described diapire 211 with describedBetween light guide plate 23, for the light injected from described incidence surface 231 is reflexed to described exiting surface 232.Described diapire 211 canSupport described reflector plate 24, described reflector plate 24 carries described light guide plate 23, so that described light guide plate 23 is arranged on described bottomOn wall 211.
Preferably, described reflector plate 24 also extends over the table towards described receiving space 210 of described side wall 212Face, so that the light that described light source assembly 22 sends all can enter described light guide plate 23, is then penetrated by described exiting surface 232Go out, improve the energy utilization rate of described light source assembly 22.
Preferably, described exiting surface 232 includes first area 2321 and located at described first area 2321 periphery secondRegion 2322, partly described circuit board 221 ride upon on described second area 2322.Described display panels 1 include showingArea and the non-display area located at described viewing area periphery, when positioned at the light emission side of described backlight module 2, described viewing area is just rightDescribed first area 2321 is arranged, and described non-display area is just arranged to described second area 2322.
In the present embodiment, during described liquid crystal indicator 100 work, the light that described light source assembly 22 sends enters instituteProject from described first area 2321 after stating light guide plate 23, enter described viewing area, enable described display panels 1 normalDisplay.Described second area 2322 is blocked, and the light in described light guide plate 23 will not enter institute by described second area 2322State non-display area.
It should be understood that partly described circuit board 221 rides upon on described second area 2322, both can be with occlusion part light splittingLine, can also increase the degree of firmly installing of described circuit board 221.
Preferably, described backlight module 2 also includes being contained in the optical diaphragm group 26 of described receiving space 210, described lightLearn diaphragm group 26 to be located at described exiting surface 232 and cover described first area 2321 and partly described second area 2322.
Preferably, described optical diaphragm group 26 includes the multiple diaphragms being stacked.The plurality of diaphragm includes brightness enhancement filmAnd/or diffusion barrier.
Preferably, described backlight module 2 also includes light shield layer 25, and described light shield layer 25 covers described second area 2322,For preventing light from projecting from described second area 2322.Described light shield layer 25 can adopt shading glue, preferably black or grey coloring agentBar.
Preferably, the end face away from described diapire 211 of described side wall 212 includes propping up of neighbouring described optical diaphragm group 26Support face 2120, described light shield layer 25 covers described supporting surface 2120, is used for fixing described optical diaphragm group 26.
In the present embodiment, described optical diaphragm group 26 can be made with respect to described supporting surface by described light shield layer 252120 is fixing, namely fixes with respect to described backboard 21 such that it is able to increase the assembling firmness of described optical diaphragm group 26, preventsOnly tilt or come off.
It should be understood that described light shield layer 25 also can cover described circuit board 221, prevent the plurality of light source 222 from sendingLight bypass described light guide plate 23 and described circuit board 221 enters described display panels 1 it is also possible to make described bloomingPiece group 26 is fixing with respect to described circuit board 221, namely fixes with respect to described backboard 21 such that it is able to increase described furtherThe assembling firmness of optical diaphragm group 26, prevents from tilting or coming off.
Further, see also Fig. 2 and Fig. 6, as a kind of alternative embodiment, described circuit board 221 passes through to pasteLayer 27 conforms to the surface away from described diapire 211 of the plurality of installing arm 213.Preferably, described adhered layer 27 is from doubleFace glue.Wherein, described circuit board 221 also can conform to described second area 2322 by adhered layer 27.
Certainly, as shown in figure 4, in a kind of way of example, described circuit board 221 also can be conformed to by adhered layer 27The plurality of linking arm 214.
Further, see also Fig. 1 and Fig. 2, as a kind of alternative embodiment, described display panels 1 partAbut the end face away from described diapire 211 of described side wall 212, partly abut the described light shield layer on described supporting surface 212025.Now, the multiple flush abutting with described display panels 1 are so that described display panels 1 can be wellConnect described backboard 21, thus realizing the assembling of described display panels 1 and described backlight module 2.Described backlight module 2Described light source assembly 22, described light guide plate 23, described reflector plate 24 and described optical diaphragm group 26 are all contained in described collectingSpace 210, the non-bulging plane being located in described supporting surface 2120.Described light shield layer 25 can adopt shading glue, simultaneously works as hidingLight and cementation.
It should be understood that in the vertical direction of the light direction of described backlight module 2, described display panels 1Size can be equivalently-sized with described backlight module 2, so that the overall volume of described liquid crystal indicator 100 is less, becomesThis is relatively low.
Further, refer to Fig. 7, as a kind of alternative embodiment, described display panels 1 are contained in described collectingSpace 210.Now, the described light source assembly 22 of described backlight module 2, described light guide plate 23, described reflector plate 24 and describedOptical diaphragm group 26 is all contained in described receiving space 210, does not protrude from the plane that described supporting surface 2120 is located.Described liquidLCD panel 1 connects described light shield layer 25, the described non-display area just to described display panels 1 for the described light shield layer 25.Now, the portion end surface away from described diapire 211 of described side wall 212 and the distance of described diapire 211 are more than or equal to described liquidLCD panel 1 and the distance of described diapire 211, namely the part wall body of described side wall 212 is higher than described display panels1, thus playing a protective role to described display panels 1.
Above the embodiment of the present invention is described in detail, specific case used herein to the principle of the present invention andEmbodiment is set forth, and the explanation of above example is only intended to help and understands the method for the present invention and its core concept；Simultaneously for one of ordinary skill in the art, according to the thought of the present invention, all can in specific embodiments and applicationsIn place of having change, in sum, this specification content should not be construed as limitation of the present invention.