CN203571518U - Light bar and backlight source with same - Google Patents
Light bar and backlight source with same Download PDFInfo
- Publication number
- CN203571518U CN203571518U CN201320701286.7U CN201320701286U CN203571518U CN 203571518 U CN203571518 U CN 203571518U CN 201320701286 U CN201320701286 U CN 201320701286U CN 203571518 U CN203571518 U CN 203571518U
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- Prior art keywords
- led encapsulation
- led
- lamp bar
- lgp
- encapsulation
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- 239000000758 substrate Substances 0.000 claims abstract description 21
- 238000005538 encapsulation Methods 0.000 claims description 97
- 239000013078 crystal Substances 0.000 claims description 5
- 239000004568 cement Substances 0.000 claims description 4
- 239000012788 optical film Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract 4
- 230000005855 radiation Effects 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The utility model provides a light bar which comprises a cooling substrate and at least two LED packages with different powers. The at least two LED packages are arranged on the cooling substrate along an identical straight line in a staggered mode. Through the fact that the at least two LED packages with the different powers are arranged on the cooling substrate and the two LED packages are arranged along the identical straight line in the staggered mode, the brightness of the light bar can be guaranteed through the LED package with the larger power, and the problems of lamp shadows and dark shadows caused by the LED package with the larger power can be fixed up through the LED package with the lower power, meanwhile, due to the fact that the LED packages with the larger power are arranged at intervals with a wide distance, the using amount of the LED packages with the larger power is lowered, the cooling of the LED packages with the larger power can be guaranteed better, and the service life of the light bar can be guaranteed better. The utility model further provides a backlight source with the light bar.
Description
Technical field
The utility model relates to the technical field in LED-backlit source, relates in particular to a kind of lamp bar and has the backlight of this lamp bar.
Background technology
In current LED-backlit module, in view of side entrance back design can thinning LED panel, day by day become design main flow, and current side entrance back design is mainly: first LED is encapsulated piece on aluminium base to form lamp bar, and then lamp bar is arranged on LGP, by LGP, light is diffused on diaphragm again, thereby form backlight.But due to the limited length of lamp bar, if use lower powered LED encapsulation, brightness aspect is more difficult reaches requirement; If use the LED encapsulation of relatively high power, have the problem that heat radiation is bad and cost is higher; If on the basis of LED encapsulation of using relatively high power, increase the spacing distance between LED encapsulation, with this, reduce the quantity of LED encapsulation, although can solve the bad and higher problem of cost of dispelling the heat, but because a lamp number is less, gap between LED encapsulation lighting angle large and LED encapsulation is limited, adds the narrow structure of current frame, easily causes LED-backlit module and occurs the problems such as lamp shadow, shadow.
Therefore, be necessary to provide a kind of technological means to address the aforementioned drawbacks.
Utility model content
The purpose of this utility model is to overcome the defect of prior art, a kind of different capacity different LED lamp bar that encapsulation coordinates is provided, to solve, in prior art, uses lower powered LED encapsulation more difficultly to reach brightness requirement, use high-power LED encapsulation easily to cause that heat radiation is bad and cost increases and on the basis of LED encapsulation of using relatively high power, increase the problem that spacer defection between LED encapsulation causes lamp shadow, shadow.Meanwhile, the utility model also provides a kind of backlight with this lamp bar.
The utility model is achieved in that a kind of lamp bar, comprises the LED encapsulation of heat-radiating substrate and at least two kinds of different capacities, and described at least two kinds of LED encapsulation is staggered along same straight line and is arranged on described heat-radiating substrate.
Particularly, described LED encapsulation has two kinds, it is respectively a LED encapsulation and the 2nd LED encapsulation, and the power of a described LED encapsulation is greater than the power of described the 2nd LED encapsulation, a described LED encapsulation is evenly spaced apart and arranged on described heat-radiating substrate, and described the 2nd LED encapsulation is arranged at the room, interval between adjacent two described LED encapsulation.
Further, the centre position in the room, interval between adjacent two described LED encapsulation is located in described the 2nd LED encapsulation.
Further, a described LED is encapsulated as twin crystal LED encapsulation.
Preferably, it is characterized in that: described the 2nd LED is encapsulated as monocrystalline LED encapsulation.
Further, the width of a described LED encapsulation equals the width of described the 2nd LED encapsulation.
Further, the lighting angle of a described LED encapsulation is greater than the lighting angle of described the 2nd LED encapsulation.
The utility model also provides a kind of backlight, comprises LGP, is arranged on above-mentioned lamp bar on the side of described LGP, is arranged on the lip-deep blooming piece of described LGP and in order to by described LGP, described lamp bar, the fixing plastic cement deckle board of described optical film combination.
Further, described lamp bar is arranged on a side of described LGP.
Further, described lamp bar is arranged on the both sides of described LGP.
Technique effect of the present utility model is: by be provided with the LED of at least two kinds of different capacities on heat-radiating substrate, encapsulate and make these two kinds of LED encapsulation to be and to be crisscross arranged along same straight line, both can guarantee by the LED encapsulation of relatively high power the brightness of lamp bar, can encapsulate by the LED of smaller power again to repair the problems such as lamp shadow that the LED encapsulation because of relatively high power causes, shadow, simultaneously, between LED encapsulation because of relatively high power, with wider distance interval, arrange, not only reduce its consumption, can also guarantee preferably its heat radiation, thereby also guarantee preferably the service life of lamp bar.
Accompanying drawing explanation
Fig. 1 is the structural representation of the lamp bar of the utility model embodiment;
Fig. 2 is the enlarged drawing of A in Fig. 1.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Refer to Fig. 1 and Fig. 2, the utility model provides a kind of lamp bar 10, comprise the LED encapsulation of heat-radiating substrate 20 and at least two kinds of different capacities, wherein, this heat-radiating substrate 20 is strip aluminium matter heat-radiating substrate, in addition, further, these at least two kinds of LED encapsulation are staggered along same straight line and are arranged on heat-radiating substrate 20.
By be provided with the LED of at least two kinds of different capacities on heat-radiating substrate 20, encapsulate and make these two kinds of LED encapsulation to be and to be crisscross arranged along same straight line, both the brightness of lamp bar 10 can be guaranteed by the LED encapsulation of relatively high power, the problems such as lamp shadow that the LED encapsulation because of relatively high power causes, shadow can be encapsulated by the LED of smaller power again to repair; , between the LED encapsulation because of relatively high power, with wider distance interval, arrange meanwhile, not only reduce its consumption, can also guarantee preferably its heat radiation, thereby also guaranteed preferably the service life of lamp bar 10.
Referring again to Fig. 2, as preferred scheme, the LED encapsulation of the present embodiment has two kinds, be respectively LED encapsulation the 31 and a 2nd LED encapsulation 32, and the power of a LED encapsulation 31 is greater than the power of the 2nd LED encapsulation 32, the one LED encapsulation 31 is evenly spaced apart and arranged on heat-radiating substrate 20, and the 2nd LED encapsulation 32 is arranged at adjacent two rooms, interval 40 between a LED encapsulation 31.By LED encapsulation the 31, a 2nd LED encapsulation 32 is set on heat-radiating substrate 20, if avoided, only use lower powered the 2nd LED encapsulation 32 can cause the problem of luminance shortage, if or only use a LED encapsulation 31 of relatively high power can cause that heat radiation is bad, cost is higher, the problem of lamp shadow.It should be noted that, be not limited to two kinds of LED encapsulation in the present embodiment herein, also can three kinds or more kinds of LED encapsulation be set according to actual conditions.
Meanwhile, arranging mainly based on following condition setting of the room, interval 40 of the present embodiment:
1) width of heat-radiating substrate 20 and length;
2) lighting angle of LED lamp;
3) light mixing distance, namely LED lamp surface is to the distance of LGP 50.
Wherein, under preferably the arranging of the width of heat-radiating substrate 20 and length, can guarantee preferably the heat radiation of LED lamp; And under the preferred disposition of the lighting angle of LED lamp, can at utmost reduce the appearance of lamp shadow problem; And the preferred setting of light mixing distance can guarantee that light is to the mixability of LGP 50 front light preferably.
Further, the centre position in two rooms, interval 40 between a LED encapsulation 31 is located in the 2nd LED encapsulation 32, thus, except being convenient to processing sets up, can also guarantee that the 2nd LED encapsulates the lamp shadow repair efficiency of 32 pairs of LED encapsulation 31 in optimization ground.
The one LED encapsulation 31 of the present embodiment is twin crystal LED encapsulation, no matter and the 2nd LED encapsulation 32 adopts the LED encapsulation of which kind of type, as long as it is little to guarantee that its power encapsulates 31 power compared with a LED.
Selectively, the 2nd LED encapsulation 32 is monocrystalline LED encapsulation, no matter and a LED encapsulation 31 adopts the LED encapsulation of which kind of type, as long as guarantee that its power encapsulates 32 power greatly compared with the 2nd LED.
Certainly, also selectively, a LED encapsulation 31 is twin crystal LED encapsulation, the 2nd LED encapsulation 32 is monocrystalline LED encapsulation, and adopts twin crystal LED encapsulation, monocrystalline LED encapsulation, not only reaches preferably its illumination effect and luminous power, also be convenient to draw materials, there is good cost performance.
As the preferred version of the present embodiment, the width of a LED encapsulation 31 equals the width of the 2nd LED encapsulation 32, to avoid the luminous generation between LED encapsulation the 31, a 2nd LED encapsulation 32 to block impact.
Further, the lighting angle of a LED encapsulation 31 is greater than the lighting angle of the 2nd LED encapsulation 32, in order to guarantee the luminous luminous impact that can not be subject to the 2nd LED encapsulation 32 of a LED encapsulation 31.
Refer to Fig. 1 and Fig. 2, the utility model also provides a kind of backlight, and this backlight is mainly used in flat panel TV, and it comprises LGP 50 and is arranged on the above-mentioned lamp bar 10 on LGP 50.Comprise LGP 50, be arranged on above-mentioned lamp bar 10 on the side of LGP 50, be arranged on the lip-deep blooming piece (not indicating in figure) of LGP 10 and in order to by LGP 50, lamp bar 10, the fixing plastic cement deckle board (not indicating in figure) of optical film combination.
Because this flat panel TV has adopted lamp bar 10, not only can dwindle preferably the width of aluminum heat-radiating substrate 20, reduce consumptive material, cost-saving, and can arrange the less LED lamp of lighting angle at heat-radiating substrate 20, with this, can select the LED lamp compared with high performance-price ratio; Meanwhile, can also make light mixing distance become less, thus, can use narrower plastic cement deckle board, thereby make the thickness of flat panel TV thinner.
Particularly, the lamp bar 10 of the present embodiment is arranged on a side of LGP 50, and the light sending due to lamp bar 10 reflexes to after diaphragm via LGP 50, is enough to guarantee the brightness of backlight.Certainly, lamp bar 10 also can be arranged on the both sides of LGP 50, to further guaranteeing the brightness of backlight.
The foregoing is only the utility model preferred embodiment; its structure is not limited to the above-mentioned shape of enumerating; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a lamp bar, is characterized in that, comprising:
Heat-radiating substrate; And
The LED encapsulation of at least two kinds of different capacities, described at least two kinds of LED encapsulation is staggered along same straight line and is arranged on described heat-radiating substrate.
2. lamp bar as claimed in claim 1, it is characterized in that: described LED encapsulation has two kinds, it is respectively a LED encapsulation and the 2nd LED encapsulation, and the power of a described LED encapsulation is greater than the power of described the 2nd LED encapsulation, a described LED encapsulation is evenly spaced apart and arranged on described heat-radiating substrate, and described the 2nd LED encapsulation is arranged at the room, interval between adjacent two described LED encapsulation.
3. lamp bar as claimed in claim 2, is characterized in that: the centre position in the room, interval between adjacent two described LED encapsulation is located in described the 2nd LED encapsulation.
4. lamp bar as claimed in claim 2, is characterized in that: a described LED is encapsulated as twin crystal LED encapsulation.
5. the lamp bar as described in claim 2 or 4, is characterized in that: described the 2nd LED is encapsulated as monocrystalline LED encapsulation.
6. lamp bar as claimed in claim 2, is characterized in that: the width of a described LED encapsulation equals the width of described the 2nd LED encapsulation.
7. lamp bar as claimed in claim 2, is characterized in that: the lighting angle of a described LED encapsulation is greater than the lighting angle of described the 2nd LED encapsulation.
8. a backlight, is characterized in that: comprise LGP, be arranged on lamp bar described in the claim 1-7 any one on the side of described LGP, be arranged on the lip-deep blooming piece of described LGP and in order to by described LGP, described lamp bar, the fixing plastic cement deckle board of described optical film combination.
9. backlight as claimed in claim 8, is characterized in that: described lamp bar is arranged on a side of described LGP.
10. backlight as claimed in claim 8, is characterized in that: described lamp bar is arranged on the both sides of described LGP.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320701286.7U CN203571518U (en) | 2013-11-07 | 2013-11-07 | Light bar and backlight source with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320701286.7U CN203571518U (en) | 2013-11-07 | 2013-11-07 | Light bar and backlight source with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203571518U true CN203571518U (en) | 2014-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320701286.7U Expired - Fee Related CN203571518U (en) | 2013-11-07 | 2013-11-07 | Light bar and backlight source with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203571518U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107153301A (en) * | 2017-06-21 | 2017-09-12 | 北京小米移动软件有限公司 | Backlight module, display module and electronic equipment |
| CN111810861A (en) * | 2020-07-13 | 2020-10-23 | 深圳创维－Rgb电子有限公司 | Light bar, backlight module and display device |
-
2013
- 2013-11-07 CN CN201320701286.7U patent/CN203571518U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107153301A (en) * | 2017-06-21 | 2017-09-12 | 北京小米移动软件有限公司 | Backlight module, display module and electronic equipment |
| CN111810861A (en) * | 2020-07-13 | 2020-10-23 | 深圳创维－Rgb电子有限公司 | Light bar, backlight module and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210721 Address after: Room 821, No. 333, jiufo Jianshe Road, Zhongxin Guangzhou Knowledge City, Huangpu District, Guangzhou, Guangdong 510000 Patentee after: Skyworth Group Intelligent Technology Co.,Ltd. Address before: 510530 No.99, Kaida Road, Science City, Guangzhou Development Zone, Guangdong Province Patentee before: GUANGZHOU SKYWORTH FLAT DISPLAY TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140430 |
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| CF01 | Termination of patent right due to non-payment of annual fee |