CN201992470U - LED backlight module - Google Patents
LED backlight module Download PDFInfo
- Publication number
- CN201992470U CN201992470U CN2010206869094U CN201020686909U CN201992470U CN 201992470 U CN201992470 U CN 201992470U CN 2010206869094 U CN2010206869094 U CN 2010206869094U CN 201020686909 U CN201020686909 U CN 201020686909U CN 201992470 U CN201992470 U CN 201992470U
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- Prior art keywords
- led
- light source
- led light
- backlit module
- diffuser plate
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- 239000002184 metal Substances 0.000 claims abstract description 66
- 238000009792 diffusion process Methods 0.000 claims abstract description 45
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000001228 spectrum Methods 0.000 abstract 1
- 239000004973 liquid crystal related substance Substances 0.000 description 6
- 101100117236 Drosophila melanogaster speck gene Proteins 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model relates to a LED (light-emitting diode) backlight module group, comprising a metal backboard, a plurality of LED light sources arranged on the metal backboard, a diffuser plate arranged on the upside of the LED light sources, wherein the LED backlight module also comprises a diffusion cover used for encasing the LED light sources and forming a light source field. The LED module of the utility model employs a diffusion cover to form an approximately uniform light source field with LED light sources and form more uniform emitting light, which ensures less LED light sources employed by the LED light module, a closer distance of mixed spectrum, lower manufacture cost and a thinner thickness, and can neither influence uniformity of the whole nor cause light source bright speckles.
Description
Technical field
The utility model relates to a kind of module backlight, more particularly, relates to a kind of ultra-thin LED module backlight that is used for LCD TV.
Background technology
Along with development of science and technology, lcd technology is more and more ripe, and TV is also from using traditional kinescope liquid crystal display till now.LCDs is passive luminous display screen.Liquid crystal itself is not luminous, so LCDs needs module backlight that light source is provided.Divide from the classification of light source, module backlight can be divided into CCFL (cold cathode fluorescent lamp pipe: module backlight Cold Cathode Fluorescent Lamp), LED-backlit module etc.The LED-backlit module divides according to the LED position can be divided into direct-light type LED backlight module and LED side module backlight.In general, side liquid crystal module backlight is used in small-medium size, and large scale is used end module backlight.Usually the backlight because light source of side is in the side, and is generally all thinner.And the backlight because backlight in the end is in the bottom, thus in general the end backlight all thicker.Can in general, module backlight be all emphasized a disguise, and disguise just is used for watching outside liquid crystal display, see an important indicator of lamp shadow.Usually lamp is far away more apart from diffuser plate, and disguise is good more, and is near more apart from diffuser plate, and disguise is poor more.In order to realize better disguise, common implementation method all is to select the distance that strengthens diffuser plate and light source for use, increases the light mixing distance of light source, makes that the thickness of module integral body is thicker.LCD TV is at present towards the slimming development, and an important threshold of decision LCD TV thickness just is the thickness of liquid crystal module.The most again thickness that depend on module backlight of the thickness of liquid crystal module.
The utility model content
The technical problems to be solved in the utility model is that module cost height backlight or the big defective of thickness at prior art provide the low ultra-thin LED of a kind of cost module backlight.
The technical scheme that its technical problem that solves the utility model adopts is: construct a kind of LED-backlit module, the diffuser plate that comprises metal backing, is arranged on a plurality of led light sources on the described metal backing and is arranged on described led light source top, wherein said LED-backlit module also comprises the diffusion shell that is used for described led light source is encased, forms the light source field.
In LED-backlit module described in the utility model, be provided with a plurality of described diffusion shells in the described LED-backlit module, each described diffusion shell encases at least one described led light source.
In LED-backlit module described in the utility model, described diffusion shell has identical cross section with respect to each described led light source on the direction perpendicular to described metal backing, and described cross section is annular or crescent.
In LED-backlit module described in the utility model, be provided with first reflector plate between described metal backing and the described led light source.
In LED-backlit module described in the utility model, described LED-backlit module also comprises the metal outer frame that is positioned at described LED-backlit module side, and described diffuser plate is fixed on described led light source top by described metal outer frame.
In LED-backlit module described in the utility model, described metal outer frame and described metal backing are integrated.
In LED-backlit module described in the utility model, described metal outer frame inboard is provided with second reflector plate.
In LED-backlit module described in the utility model, described diffuser plate outer surface is provided with at least one blooming piece.
In LED-backlit module described in the utility model, described LED-backlit module also comprises the support column that is used to support described diffuser plate.
The utility model is also constructed a kind of LED-backlit module, the diffuser plate that comprises metal backing, is arranged on a plurality of led light sources on the described metal backing and is arranged on described led light source top, wherein said LED-backlit module also comprises a plurality of diffusion shells that are used for described led light source is encased, forms the light source field, and each described diffusion shell encases at least one described led light source; Described diffusion shell has identical cross section with respect to each described led light source on the direction perpendicular to described metal backing, described cross section is annular or crescent; Be provided with first reflector plate between described metal backing and the described led light source; Described LED-backlit module also comprises the metal outer frame that is positioned at described LED-backlit module side, and described diffuser plate is fixed on described led light source top by described metal outer frame; Described metal outer frame and described metal backing are integrated; Described metal outer frame inboard is provided with second reflector plate; Described diffuser plate outer surface is provided with at least one blooming piece; Described LED-backlit module also comprises the support column that is used to support described diffuser plate.
Implement LED-backlit module of the present utility model, has following beneficial effect: adopt diffusion shell to make led light source and diffusion shell form an approximate uniform light source field, emergent ray is more even, make led light source that the LED-backlit module adopts still less, light mixing distance is nearer, cost of manufacture is lower, thickness is thinner, and can not influence whole uniformity, the light source speck can not occur.
Diffusion shell can encase a led light source as required or encase a plurality of led light sources.Diffusion shell can be made multiple shape as required, makes emergent light more even.The setting of first reflector plate can well be reflected from the light of bottom outgoing.Metal outer frame is fit to the fixing of heat radiation and diffuser plate more.The integrated radiating effect that makes of metal outer frame and metal backing is better.The setting of second reflector plate can well be reflected the light of outgoing from the side.The outgoing reflection of light that the setting of blooming piece prevents.Support column can better guarantee the distance between diffuser plate and the led light source.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the structural representation of first preferred embodiment of LED-backlit module of the present utility model;
Fig. 2 is the structural representation of second preferred embodiment of LED-backlit module of the present utility model.
The specific embodiment
Below in conjunction with diagram, preferred embodiment of the present utility model is described in detail.
In the structural representation of the preferred embodiment of the LED-backlit module of the present utility model shown in Fig. 1,2, described LED-backlit module comprises metal backing 1, a plurality of led light source 2, diffuser plate 3 and diffusion shell 4, and a plurality of led light sources 2 are fixedly installed on the metal backing 1; Diffuser plate 3 is arranged on led light source 2 tops, is used for the light that led light source 2 sends is diffused to different directions, makes the light of module outgoing backlight more even; Diffusion shell 4 is used for led light source 2 is encased approximate uniform light source field of formation.Original LED-backlit module mainly relies on the quantity of diffuser plate 3 and led light source 2 to realize the homogenising of emergent light, be that improvement diffuser plate 3 or the volume cost that increases led light source 2 all can roll up, the outgoing light uniformization can be effectively made by the distance that increases between diffuser plate 3 and the led light source 2, but the thickness thickening of LED-backlit module can be made again.When LED-backlit module of the present utility model uses, increased diffusion shell 4, the purpose of diffusion shell 4 is led light source 2 is encased approximate uniform light source field of formation, emergent light must see through diffusion shell 4 and could penetrate, the shooting angle that emergent light sees through the light that diffusion shell 4 penetrates is owing to the reason of diffusion shell 4 can increase, therefore the light that penetrates can be more even, so just effectively utilized the space length between diffuser plate 3 and the led light source 2 to carry out the diffusion of light, the feasible distance that does not need to increase between new led light source 2 or increase diffuser plate 3 and the led light source 2.Adopt diffusion shell 4 to make led light source 2 and diffusion shell 4 form an approximate uniform light source field, emergent ray is more even, make led light source 2 that the LED-backlit module adopts still less, light mixing distance is nearer, cost of manufacture is lower, thickness is thinner, and can not influence whole uniformity, the light source speck can not occur.
In the structural representation of the preferred embodiment of the LED-backlit module of the present utility model shown in Fig. 1,2, be provided with a plurality of diffusion shells 4 in the described LED-backlit module, each diffusion shell 4 encases at least one led light source 2.Diffusion shell 4 can encase a led light source 2 according to the needs of user or cost, encases a plurality of led light sources 2 or encase the lamp bar of being made up of a plurality of led light sources 2, makes the emergent light of led light source 2 could penetrate by diffusion shell 4.
In the structural representation of the preferred embodiment of the LED-backlit module of the present utility model shown in Fig. 1,2, diffusion shell 4 has identical cross section with respect to each led light source 2 on the direction perpendicular to metal backing 1, and described cross section is annular or crescent.As shown in Figure 1, diffusion shell 4 is being crescent with respect to each led light source 2 perpendicular to the cross section on the direction of metal backing 1, and as shown in Figure 2, diffusion shell 4 perpendicular to the cross section on the direction of metal backing 1 is being annular with respect to each led light source 2.Led light source 2 is owing to the reason of encapsulation all has the angle of emergence of a light, in order to make the final outgoing luminous energy of LED-backlit module reach even as much as possible, diffusion shell 4 might not carry out the diffusion of each even angle to the emergent light of led light source 2, can make various shape according to the size of the angle of emergence of led light source 2, making that outgoing intensity to light is big or described LED-backlit module is gone out the big part of influence of light better spreads, and makes the emergent light of final LED-backlit module reach even as much as possible.Diffusion shell 4 can be made multiple shape as required, makes emergent light more even.
In the structural representation of the preferred embodiment of the LED-backlit module of the present utility model shown in Fig. 1,2, be provided with first reflector plate 5 between metal backing 1 and the led light source 2.The setting of first reflector plate 5 can well be reflected from the light of bottom outgoing, guarantees effective utilization of led light source 2 emergent lights.
In the structural representation of the preferred embodiment of the LED-backlit module of the present utility model shown in Fig. 1,2, described LED-backlit module also comprises the metal outer frame 6 that is positioned at described LED-backlit module side, and diffuser plate 3 is fixed on led light source 2 tops by metal outer frame 6.Metal outer frame 6 and metal backing 1 are integrated.Metal outer frame 6 inboards are provided with second reflector plate 7.Metal outer frame 6 is fit to the fixing of heat radiation and diffuser plate 3 more.The integrated radiating effect that makes of metal outer frame 6 and metal backing 1 is better.The setting of second reflector plate 7 can well be reflected the light of outgoing from the side, guarantees effective utilization of led light source 2 emergent lights.
In the structural representation of the preferred embodiment of the LED-backlit module of the present utility model shown in Fig. 1,2, diffuser plate 3 outer surfaces are provided with at least one blooming piece 8.Blooming piece 8 can be an anti-reflection film, blooming piece 8 the total reflection that has effectively prevented emergent light is set, blooming piece 8 can be provided with one or polylith according to the requirement of user's needs and cost.
In the structural representation of the preferred embodiment of the LED-backlit module of the present utility model shown in Fig. 1,2, described LED-backlit module also comprises the support column 9 that is used to support diffuser plate 3.Diffuser plate 3 is fixed on the top of led light source 2 by metal outer frame 6, because the area of diffuser plate 3 is bigger, thereby long-term use may cause local distance with led light source 2 to change makes that the bright dipping of LED-backlit module is inhomogeneous, therefore between diffuser plate 3 and metal backing 1, be provided with a plurality of support columns 9 that are used to support diffuser plate 3, support column 9 can better guarantee the distance between diffuser plate 3 and the led light source 2, guarantees that the LED-backlit module goes out uniformity of light.
The utility model is also constructed a kind of LED-backlit module, the diffuser plate 3 that comprises metal backing 1, is arranged on a plurality of led light sources 2 on the metal backing 1 and is arranged on described led light source 2 tops, wherein said LED-backlit module also comprises a plurality of diffusion shells 4 that are used for led light source 2 is encased, forms the light source field, and each diffusion shell 4 encases at least one led light source 2; Diffusion shell 4 has identical cross section with respect to each led light source 2 on the direction perpendicular to metal backing 1, cross section is annular or crescent; Be provided with first reflector plate 5 between metal backing 1 and the led light source 2; Described LED-backlit module also comprises the metal outer frame 6 that is positioned at LED-backlit module side, and diffuser plate 3 is fixed on led light source 2 tops by metal outer frame 6; Metal outer frame 6 and metal backing 1 are integrated; Metal outer frame 6 inboards are provided with second reflector plate 7; Diffuser plate 3 outer surfaces are provided with at least one blooming piece 8; The LED-backlit module also comprises the support column 9 that is used to support described diffuser plate 3.The concrete using method of LED-backlit module of the present utility model and beneficial effect are referring to above-mentioned specific embodiment.
Innovation of the present utility model is to increase diffusion shell 4 on led light source 2, makes led light source 2 form an approximate uniform light source field by diffusion shell 4.Effect after the use can make the emergent ray of LED-backlit module more even, thereby can reduce the distance between led light source 2 and the diffuser plate 3, reaches better disguise.Adopt this LED-backlit module, we can make the thin more LED-backlit module of thickness, and can not influence whole uniformity, the light source speck can not occur.
The above only is embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure transformation that utilizes the utility model specification and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (10)
1. LED-backlit module, the diffuser plate (3) that comprises metal backing (1), is arranged on a plurality of led light sources (2) on the described metal backing (1) and is arranged on described led light source (2) top, it is characterized in that described LED-backlit module also comprises the diffusion shell (4) that is used for described led light source (2) is encased, forms the light source field.
2. LED-backlit module according to claim 1 is characterized in that, is provided with a plurality of described diffusion shells (4) in the described LED-backlit module, and each described diffusion shell (4) encases at least one described led light source (2).
3. LED-backlit module according to claim 1 is characterized in that, described diffusion shell (4) has identical cross section with respect to each described led light source (2) on the direction perpendicular to described metal backing (1), and described cross section is annular or crescent.
4. LED-backlit module according to claim 1 is characterized in that, is provided with first reflector plate (5) between described metal backing (1) and the described led light source (2).
5. LED-backlit module according to claim 1, it is characterized in that, described LED-backlit module also comprises the metal outer frame (6) that is positioned at described LED-backlit module side, and described diffuser plate (3) is fixed on described led light source (2) top by described metal outer frame (6).
6. LED-backlit module according to claim 5 is characterized in that, described metal outer frame (6) and described metal backing (1) are integrated.
7. LED-backlit module according to claim 5 is characterized in that, described metal outer frame (6) inboard is provided with second reflector plate (7).
8. LED-backlit module according to claim 1 is characterized in that, described diffuser plate (3) outer surface is provided with at least one blooming piece (8).
9. LED-backlit module according to claim 1 is characterized in that, described LED-backlit module also comprises the support column (9) that is used to support described diffuser plate (3).
10. LED-backlit module, the diffuser plate (3) that comprises metal backing (1), is arranged on a plurality of led light sources (2) on the described metal backing (1) and is arranged on described led light source (2) top, it is characterized in that, described LED-backlit module also comprises a plurality of diffusion shells (4) that are used for described led light source (2) is encased, forms the light source field, and each described diffusion shell (4) encases at least one described led light source (2); Described diffusion shell (4) has identical cross section with respect to each described led light source (2) on the direction perpendicular to described metal backing (1), described cross section is annular or crescent; Be provided with first reflector plate (5) between described metal backing (1) and the described led light source (2); Described LED-backlit module also comprises the metal outer frame (6) that is positioned at described LED-backlit module side, and described diffuser plate (3) is fixed on described led light source (2) top by described metal outer frame (6); Described metal outer frame (6) and described metal backing (1) are integrated; Described metal outer frame (6) inboard is provided with second reflector plate (7); Described diffuser plate (3) outer surface is provided with at least one blooming piece (8); Described LED-backlit module also comprises the support column (9) that is used to support described diffuser plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206869094U CN201992470U (en) | 2010-12-29 | 2010-12-29 | LED backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206869094U CN201992470U (en) | 2010-12-29 | 2010-12-29 | LED backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201992470U true CN201992470U (en) | 2011-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206869094U Expired - Fee Related CN201992470U (en) | 2010-12-29 | 2010-12-29 | LED backlight module |
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| Country | Link |
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| CN (1) | CN201992470U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494285A (en) * | 2011-12-21 | 2012-06-13 | 南京中电熊猫液晶显示科技有限公司 | Straight-down regional light control light-emitting diode (LED) backlight module |
| WO2023184388A1 (en) * | 2022-03-31 | 2023-10-05 | 京东方科技集团股份有限公司 | Backlight module and display apparatus |
-
2010
- 2010-12-29 CN CN2010206869094U patent/CN201992470U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494285A (en) * | 2011-12-21 | 2012-06-13 | 南京中电熊猫液晶显示科技有限公司 | Straight-down regional light control light-emitting diode (LED) backlight module |
| WO2023184388A1 (en) * | 2022-03-31 | 2023-10-05 | 京东方科技集团股份有限公司 | Backlight module and display apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110928 Termination date: 20151229 |
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| EXPY | Termination of patent right or utility model |