CN205028004U - Back light module and display device - Google Patents
Back light module and display device Download PDFInfo
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- CN205028004U CN205028004U CN201520784435.XU CN201520784435U CN205028004U CN 205028004 U CN205028004 U CN 205028004U CN 201520784435 U CN201520784435 U CN 201520784435U CN 205028004 U CN205028004 U CN 205028004U
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Abstract
The application discloses a back light module and display device. Wherein, backlight unit includes leaded light component, light source and backplate. The leaded light component has at least one and goes into plain noodles and a play plain noodles. The light source neighbour locate into the plain noodles to can send light and incide to the leaded light component by going into the plain noodles, and jet out by a plain noodles. The backplate bears leaded light component and light source, and the backplate contains first structural layer, second structural layer and third structural layer at least, and second structural layer clamp is located between first structural layer and the third structural layer, and forms a plurality of holes in the second structural layer.
Description
Technical field
The utility model relates to a kind of backlight module and display device, particularly a kind of have can take into account intensity and the backlight module of weight reduction backboard and display device.
Background technology
Because the display medium of display panels itself can not be luminous, in order to reach display effect, light briliancy must be provided enough and the area source be evenly distributed (i.e. backlight module) to display panels, to show required picture.
In the assembling of known a kind of display device, be generally utilize backboard to carry the element such as backlight module and display panel; In order to provide element preferably protectiveness, the intensity preferably material such as metal or alloy generally selected by backboard, with phenomenon damage backlight module or display panels such as collision free, electromagnetic wave, electric shock or aqueous vapors.But, use the backboard of metal or alloy, make the integral material cost of display device higher, and have the shortcoming of heavier-weight.
Therefore, how to provide a kind of backlight module and display device, can have lighter in weight and lower-cost advantage, be one of important topic of industry always.
Summary of the invention
In view of above-mentioned problem, the purpose of this utility model is for providing a kind of backlight module and the display device with lighter in weight and the lower advantage of cost.
For achieving the above object, the utility model provides a kind of backlight module to comprise light-guide device, light source and backboard.Light-guide device has at least one incidence surface and an exiting surface.Light source is adjacent to incidence surface, and can emit beam and be incident to light-guide device by incidence surface, and is penetrated by exiting surface.Backboard carrying light-guide device and light source, backboard at least comprises the first structural sheet, the second structural sheet and the 3rd structural sheet, and the second structural sheet is located between the first structural sheet and the 3rd structural sheet, and forms multiple hole in the second structural sheet.
In one embodiment, light-guide device is light guide plate or diffuser plate.
In one embodiment, the first structural sheet and the 3rd structural sheet are tabular, and these holes are polygon.
In one embodiment, above-mentioned polygon can be triangle, quadrilateral, pentagon or hexagon.
In one embodiment, the second structural sheet is wavy, and the first structural sheet, the second structural sheet and the 3rd structural sheet form corrugated structure.
In one embodiment, the first structural level is light reflection surface to the surface of light-guide device.
In one embodiment, backlight module comprises reflecting element further, and it is arranged between the first structural sheet and light-guide device.
In one embodiment, the material of the first structural sheet, the second structural sheet or the 3rd structural sheet comprises macromolecular material, carbon fiber, paper or metal.
In one embodiment, light source can be light emitting diode, Organic Light Emitting Diode, cathode fluorescent tube, thermal cathode fluorescent tube, Flied emission fluorescent tube or external electrode fluorescent lamp pipe.
For achieving the above object, the utility model provides a kind of display device further, comprises the above arbitrary backlight module and display panel, and wherein display panel is relative with backlight module and establish, in order to receive the incident light coming from backlight module.
From the above, according in backlight module of the present utility model and display device, backboard at least comprises the first structural sheet, the second structural sheet and the 3rd structural sheet, and the second structural sheet is located between the first structural sheet and the 3rd structural sheet, and forms multiple hole in the second structural sheet.Thus, compare the backboard that known technology uses metal or alloy, backlight module of the present utility model and display device are located between the first structural sheet and the 3rd structural sheet by the second structural sheet, and the backboard forming multiple hole in the second structural sheet is to carry display panel, light-guide device and light source, collision free or electromagnetic wave or the phenomenon such as electric shock or aqueous vapor damage backlight module or display panel thus.Therefore, the overall weight of backlight module and display device not only can be made comparatively light, make backlight module and display device have the lower advantage of material cost further, and taken into account the intensity needed for backboard of backlight module simultaneously.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of display device of the utility model preferred embodiment.
Fig. 2 to Fig. 5 is respectively the schematic diagram of the display device of the different embodiment of the utility model.
Embodiment
Hereinafter with reference to relevant drawings, the backlight module according to the utility model preferred embodiment and display device are described, wherein identical element is illustrated with identical reference marks.
Please refer to shown in Fig. 1, it is the schematic diagram of a kind of display device 1 of the utility model preferred embodiment.In icon, show first direction X, second direction Y and third direction Z, first direction X, second direction Y and third direction Z are in fact mutually vertical between two.Wherein, first direction X can be such as by the direction of the left side of Fig. 1 towards right side horizontal-extending, third direction Z can be such as by vertically extending direction upward, the below of Fig. 1, and second direction Y can be such as the other direction of vertical first direction X and third direction Z simultaneously, also namely vertically enter the direction of the drawing of Fig. 1.
The display device 1 of the present embodiment comprises display panel 11 and backlight module 2, and wherein backlight module 2 is relative with display panel 11 and establish, and display panel 11 can receive the incident ray coming from backlight module 2, with show image.In addition, be provided with glue frame 12 further in the present embodiment, glue frame 12 is adjacent to display panel 11 and backlight module 2, and has loading end 121.In this, display panel 11 is arranged on loading end 121, to be carried display panel 11 by glue frame 12 and relative with backlight module 2 and establish.
Display panel 11 comprises first substrate 111, second substrate 112 and display dielectric layer (figure does not show).Display dielectric layer is located between first substrate 111 and second substrate 112, and can be liquid crystal layer.Wherein, first substrate 111 and second substrate 112 can be made by light-transmitting materials, and are such as glass substrate, quartz base plate, plastic base or its combination, but not by the restriction of above-mentioned material.In the present embodiment, first substrate 111 is with thin film transistor base plate, and second substrate 112 is for colored optical filtering substrates.But in other implementations, black-matrix layer (BlackMatrix) on colored optical filtering substrates and filter layer (ColorFilter) also can be arranged on thin film transistor base plate respectively, first substrate 111 is made to become BOA (BlackMatrixonArray) substrate, or become COA (ColorFilteronArray) substrate, do not limit.
Display panel 11 can comprise two Polarizers 113,114 further, Polarizer 113 (lower Polarizer) is arranged at the side of first substrate 111 away from second substrate 112, and Polarizer 114 (upper Polarizer) is arranged at the side of second substrate 112 away from first substrate 111.In this, Polarizer 113 fits in the downside surface of first substrate 111, and Polarizer 114 fits in the uper side surface of second substrate 112.The Polarizer 113,114 of 90 degree is differed in fact by two panels polarizing axis, the function of covering backlight can be realized, the strong and weak adjustable display dielectric layer that recycling controls electric field produces degree of deflection, and then the characteristic of modulation light, realizes allowing the object of display panel 11 show image.
Backlight module 2 comprises light-guide device 21, light source 23 and backboard 29.In addition, the backlight module 2 of the present embodiment comprises at least one blooming piece further.
Light-guide device 21 makes with light transmissive material, and have at least one an incidence surface I and exiting surface O.The backlight module 2 of the present embodiment is side-light backlight module, therefore light-guide device 21 is light guide plate, and incidence surface I is adjacent to exiting surface O.Wherein, the section shape of light guide plate (light-guide device 21) can be such as rectangle or wedge shape.In this, with the light-guide device 21 of rectangle, and extend to example toward first direction X.In addition, light guide plate (light-guide device 21) material such as can be polymethylmethacrylate (PolymethylMethacrylate, PMMA), polycarbonate (Polycarbonate, PC), polystyrene (Polystyrene, PS) or glass, do not limited.In various embodiments, if when backlight module is down straight aphototropism mode set, then light-guide device is diffuser plate, and incidence surface and exiting surface are two relative surfaces.In backlight module 2, the Main Function of light-guide device 21 is to guide the direction of the light coming from light source, and by effects such as the reflection of light in light-guide device 21 inside, refraction and scatterings, collocation is simultaneously arranged on the inner or surperficial microstructure of light-guide device 21, light is penetrated by the exiting surface O of light-guide device 21, and then forms the uniform area light source needed for display panel 11.In the utility model, backlight module 2 is not defined as side-light type or down straight aphototropism mode set.
In addition, glue frame 12, except loading end 121, comprises installation surface 122 further.The installation surface 122 of the present embodiment is the side being positioned at glue frame 12, and light source 23 is arranged at installation surface 122, make light source 23 be adjacent to the incidence surface I of light-guide device 21, and can emit beam and be incident to light-guide device 21 by the incidence surface I of light-guide device 21, and penetrated by its exiting surface O.Wherein, light source 23 has at least one light-emitting component 231 and a substrate 232.Substrate 232 can be flexible base plate, rigid substrate or Rigid Flex, and fits in installation surface 122 by such as adhesion layer (figure does not show).In addition, light-emitting component 231 is arranged on substrate 232, and relative with incidence surface I and establish, and both can contact or not contact.The light-emitting component 231 of the present embodiment is light emitting diode, such as but not limited to comprising LED crystal particle (die), reflection configuration (such as reflector or reflex housing) and adhesive body (figure does not show), and LED crystal particle can chip bonding or surperficial joining technique be arranged on substrate 232.In addition, the light source 23 of the present embodiment is the LED optical strip (Lightbar) with multiple light emitting diode is example, and is arranged at the side of light-guide device 21.But, in various embodiments, light source (figure does not show) also can be set in the side that the incidence surface I of light-guide device 21 is relative in addition, to make two light sources provide light to light-guide device 21 by incidence surface I and the opposite side relative with light face I respectively, the utility model does not limit.In addition, in certain embodiments, except light emitting diode, light source 23 also can be Organic Light Emitting Diode (OrganicLight-EmittingDiode, OLED), cathode fluorescent tube (CCFL), thermal cathode fluorescent tube (HCFL), Flied emission fluorescent tube (FieldEmissionFluorescentLamp, or external electrode fluorescent lamp pipe (ExternalElectrodeFluorescentLamp FEFL), EEFL), the utility model does not also limit.
In addition, the backlight module 2 of the present embodiment sequentially has 4 blooming pieces 24,25,26,27 from down to up for example.Blooming piece 24,25,26,27 such as can be respectively diffusion sheet, prismatic lens, brightness enhancement film or its combination, do not limited, thus, the light of the exiting surface O of injection light-guide device 21 is made can to form uniform area source through after blooming piece 24,25,26,27.
Backboard 29 carries display panel 11, glue frame 12, light-guide device 21, light source 23 and blooming piece 24,25,26,27, and collision free or electromagnetic wave or the phenomenon such as electric shock or aqueous vapor damage backlight module 2 or display panel 11.Backboard 29 at least comprises the first structural sheet 291, second structural sheet 292 and the 3rd structural sheet 293.Second structural sheet 292 is located between the first structural sheet 291 and the 3rd structural sheet 293, and can form multiple hole H in the second structural sheet 292.In this, backboard 29 is located between first structural sheet 291 and the 3rd structural sheet 293 for second structural sheet 292.But, in various embodiments, backboard 29 is except the first structural sheet 291, second structural sheet 292 and the 3rd structural sheet 293, and also visual actual demand comprises the 4th structural sheet, the 5th structural sheet further ... to strengthen its structural strength, the utility model does not also limit.Wherein, the material of the first structural sheet 291, second structural sheet 292 or the 3rd structural sheet 293 can comprise macromolecular material, carbon fiber, paper or metal or its combination in any, does not limit.
First structural sheet 291 and the 3rd structural sheet 293 of the present embodiment are tabular, and the second structural sheet 292 is wavy.In addition, in backboard 29, between second structural sheet 292 and the first structural sheet 291, between the second structural sheet 292 and the 3rd structural sheet 293, form multiple hole H, and the first structural sheet 291, second structural sheet 292 and the 3rd structural sheet 293 form the corrugated structure of individual layer, make its structural strength can meet the requirement of display device 1.In the utility model, the geometric configuration of the first structural sheet 291 and the 3rd structural sheet 293 is not limited with tabular shown in the drawings, and it also can form other geometric configuratioies, only backboard 29 need be made can to carry the element of backlight module 2.
In addition, the present embodiment does not use reflecting element, but directly the first structural sheet 291 is become light reflection surface towards the surface design of the bottom surface B of light-guide device 21, the light of injection bottom surface B to be reflexed to again the inside of light-guide device 21, improve the utilization factor of light thus.Specifically, the light reflection surface of the first structural sheet 291 can be such as the reflection horizon of the coat of metal or reflective coating.Reflection horizon can have the reflecting material of high reflectance, such as, can comprise metal, metal oxide, high reverse--bias paint (white paint), reflecting layer or its combination.
Hold, compare the backboard that known technology uses metal or alloy, in display device 1, be located between the first structural sheet 291 and the 3rd structural sheet 293 by the second structural sheet 292, and the backboard 29 that can form multiple hole H in the second structural sheet 292 is to carry display panel 11, glue frame 12, light-guide device 21, light source 23 and blooming piece 24,25,26,27, collision free or electromagnetic wave or the phenomenon such as electric shock or aqueous vapor damage backlight module 2 or display panel 11 thus.Therefore, the overall weight of display device 1 not only can be made comparatively light, more make display device 1 have the lower advantage of material cost.In addition, the present embodiment does not arrange reflector plate (plate) at the bottom surface B of light-guide device 21, but directly the first structural sheet 291 is become light reflection surface towards the surface design of light-guide device 21, thus, also can save the material cost of reflecting plate (sheet) and assemble man-hour, and reducing the thickness of display device 1 entirety.
In addition, please respectively with reference to shown in Fig. 2 to Fig. 5, it is respectively the schematic diagram of the display device 1a ~ 1d of the different embodiment of the utility model.
As shown in Figure 2, main different of the display device 1 of display device 1a and Fig. 1 are, these holes H of the backboard 29 of display device 1 facings second direction Y, and the wavy of its second structural sheet 292 extends toward first direction X and third direction Z; But these holes H of the backboard 29a of display device 1a facings first direction X and third direction Z, and the wavy of its second structural sheet 292a extends toward second direction Y.In the utility model, the structure of the backboard 29a shown in Fig. 2, is also comprised in the category of corrugated structure.
In addition, as shown in Figure 3, main different of the display device 1 of display device 1b and Fig. 1 are, the multiple hole H formed in the second structural sheet 292b of the backboard 29b of display device 1b are respectively polygon (can be single or multiple lift), and be hexagon, make backboard 29b have honey comb like architectural feature.In various embodiments, described polygon also can be triangle, quadrilateral or pentagon, and the utility model does not also limit.
In addition, as shown in Figure 4, main different of the display device 1b of display device 1c and Fig. 3 are, these holes H of the backboard 29b of display device 1b facings second direction Y, but these holes H of the backboard 29c of display device 1c facings first direction X and third direction Z.
In addition, as shown in Figure 5, main different of the display device 1b of display device 1d and Fig. 3 are, the backlight module 2d of display device 1d can comprise reflecting element 28 further, reflecting element 28 is arranged between the first structural sheet 291 and light-guide device 21, and the light of the bottom surface B of injection light-guide device 21 can be reflexed to again the inside of light-guide device 21, improve the utilization factor of light thus.Wherein, reflecting element 28 can be reflector plate, and its thickness is less than the thickness of light-guide device 21.Reflecting element 28 can have the reflecting material of high reflectance, and reflecting material such as can comprise metal, metal oxide, high reverse--bias paint (white paint), reflecting layer or its combination, does not also limit.
In addition, the technical characteristic of display device 1a ~ other elements of 1d can refer to the similar elements of display device 1, repeats no more.
In sum, according in backlight module of the present utility model and display device, backboard at least comprises the first structural sheet, the second structural sheet and the 3rd structural sheet, and the second structural sheet is located between the first structural sheet and the 3rd structural sheet, and forms multiple hole in the second structural sheet.Thus, compare the backboard that known technology uses metal or alloy, backlight module of the present utility model and display device are located between the first structural sheet and the 3rd structural sheet by the second structural sheet, and the backboard forming multiple hole in the second structural sheet is to carry display panel, light-guide device and light source, collision free or electromagnetic wave or the phenomenon such as electric shock or aqueous vapor damage backlight module or display panel thus.Therefore, the overall weight of backlight module and display device not only can be made comparatively light, more make backlight module and display device have the lower advantage of material cost, and taken into account the intensity needed for backboard of backlight module simultaneously.
The foregoing is only illustrative, but not be restricted.Anyly do not depart from spirit of the present utility model and category, and to its equivalent modifications of carrying out or change, all should be contained in the claim of enclosing.
Claims (10)
1. a backlight module, is characterized in that comprising:
Light-guide device, has at least one incidence surface and an exiting surface;
Light source, is adjacent to described incidence surface, and can emit beam and be incident to described light-guide device by described incidence surface, and is penetrated by described exiting surface; And
Backboard, carry described light-guide device and described light source, described backboard at least comprises the first structural sheet, the second structural sheet and the 3rd structural sheet, and described second structural sheet is located between described first structural sheet and described 3rd structural sheet, and forms multiple hole in described second structural sheet.
2. backlight module according to claim 1, is characterized in that described light-guide device is light guide plate or diffuser plate.
3. backlight module according to claim 1, it is characterized in that described first structural sheet and described 3rd structural sheet are tabular, and described hole is polygon.
4. backlight module according to claim 3, is characterized in that described polygon is triangle, quadrilateral, pentagon or hexagon.
5. backlight module according to claim 1, is characterized in that described second structural sheet is wavy, and described first structural sheet, described second structural sheet and described 3rd structural sheet form corrugated structure.
6. backlight module according to claim 1, is characterized in that described first structural level is light reflection surface to the surface of described light-guide device.
7. backlight module according to claim 1, is characterized in that comprising further:
Reflecting element, is arranged between described first structural sheet and described light-guide device.
8. backlight module according to claim 1, is characterized in that the material of described first structural sheet, described second structural sheet or described 3rd structural sheet comprises macromolecular material, carbon fiber, paper or metal.
9. backlight module according to claim 1, is characterized in that described light source is light emitting diode, Organic Light Emitting Diode, cathode fluorescent tube, thermal cathode fluorescent tube, Flied emission fluorescent tube or external electrode fluorescent lamp pipe.
10. a display device, is characterized in that comprising the backlight module as described in any one in claim 1 to 9; And
Display panel, relative with described backlight module and establish, in order to receive the incident light coming from described backlight module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520784435.XU CN205028004U (en) | 2015-10-12 | 2015-10-12 | Back light module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520784435.XU CN205028004U (en) | 2015-10-12 | 2015-10-12 | Back light module and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205028004U true CN205028004U (en) | 2016-02-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520784435.XU Expired - Fee Related CN205028004U (en) | 2015-10-12 | 2015-10-12 | Back light module and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205028004U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108458280A (en) * | 2018-02-23 | 2018-08-28 | 重庆京东方光电科技有限公司 | Backlight assembly and its assemble method, display device |
| CN112930087A (en) * | 2021-01-27 | 2021-06-08 | 昆山乙盛机械工业有限公司 | Ultra-high definition television backboard |
-
2015
- 2015-10-12 CN CN201520784435.XU patent/CN205028004U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108458280A (en) * | 2018-02-23 | 2018-08-28 | 重庆京东方光电科技有限公司 | Backlight assembly and its assemble method, display device |
| CN112930087A (en) * | 2021-01-27 | 2021-06-08 | 昆山乙盛机械工业有限公司 | Ultra-high definition television backboard |
| CN112930087B (en) * | 2021-01-27 | 2022-07-19 | 昆山乙盛机械工业有限公司 | Ultra-high definition television backboard |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160210 Termination date: 20201012 |