CN202521325U - LED planar light source - Google Patents
LED planar light source Download PDFInfo
- Publication number
- CN202521325U CN202521325U CN2012201401299U CN201220140129U CN202521325U CN 202521325 U CN202521325 U CN 202521325U CN 2012201401299 U CN2012201401299 U CN 2012201401299U CN 201220140129 U CN201220140129 U CN 201220140129U CN 202521325 U CN202521325 U CN 202521325U
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- light
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- light source
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Abstract
The utility model discloses an LED planar light source which comprises a reflector plate, a diffuser plate, an LED light emitting source and a side frame. A plurality of light guide points are printed on a reflection surface of the reflector plate, and the diffuser plate is positioned on one side, with the reflection surface, of the reflector plate. A clearance is reserved between the diffuser plate and the reflection surface, the LED light emitting source is arranged in the side frame and positioned at the lateral edge of the clearance, and light is emitted into the clearance from the lateral edge. When light is emitted to the light guide points on the reflection surface, reflected light can be diffused from each angle to be emitted out from the front face of the clearance, so that a linear light source is converted into an area light source. The reflector plate is capable of reflecting the light into the clearance besides providing the light guide points, light utilization rate can be increased, and glaring light can be effectively prevented through the diffuser plate. Therefore, the LED planar light source can give out uniform and mild light and is high in light emitting efficiency. Further, the LED planar light source with the light guide points printed on the reflector plate instead of using a light guide plate is lower in structural and technical cost as compared with high cost of light guide plates in the prior art and has the same effects as those of the light guide plates in the prior art.
Description
Technical field
The utility model belongs to photoelectric field, is specifically related to a kind ofly to can be used for throwing light on, the LED planar light source of display backlight module or lamp box etc.
Background technology
By extensive popularization, the application of LED lamp aspect normal lighting and display in recent years more and more widely with advantages such as its power saving, brightness height, long service life, anti-seismic performance are good for LED (Light Emitting Diode, light emitting diode) technology.Commonplace utilization like the LED lamp panel; Promptly in a lampshade, be array-like a plurality of LED lamp holders of arranging; And the corresponding driving circuit is set in lampshade, though this structure is simple and practical, the LED lamp panel adopts straight-down negative LED light emitting source form; More dazzling, the light uniformity of sending not good (uniformity is less than 70%).So; There is the dealer to develop one type of LED plane lamp; The parts that such LED plane lamp is plane and the inside also all are plane, mainly are reflecting plate, LGP and the diffuser plates of mounting plane shape successively in a base, and in base plate and in the side edge of LGP, LED lamp bar are installed; Light reaches the purpose that improves the uniformity through repeatedly reflecting under the acting in conjunction of reflecting plate and LGP, and effectively prevents dazzle through diffuser plate.Can know by said structure and principle; The core of this type LED plane lamp is that the effect through LGP is converted into area source with line source; The LGP of prior art is acrylic (PMMA) sheet material that utilizes optical grade; Then with having the high reflectivity and the printing ink of extinction not, leaded light point in the printing of the acrylic sheet material bottom surface of optical grade.The light that utilizes optical grade acrylic sheet material to draw to send from lamp is in the stop on optical grade acrylic sheet material surface, and when light was mapped to each leaded light point, reverberation can destroy conditioned reflex by the positive ejaculation of LGP then toward all angles diffusion.Through various densitys, leaded light point not of uniform size, can make the LGP uniformly light-emitting, and in the purposes of the reflector plate that is used of the LGP back side light reflected back LGP that is bottom surface of light guide plate is exposed, be used for improving the service efficiency of light.Structure and principle through above-mentioned prior art LGP can be known; Leaded light point on the LGP of prior art is directly to be printed on the bottom surface of LGP; This technology is very difficult in practical operation, and yield is lower, and optical grade acrylic sheet material price is more expensive; Therefore cause the LED plane lamp cost of prior art high, hindered its application to a certain extent, promoted and development.
The utility model content
In order to overcome above-mentioned defective, the utility model provides a kind of LED planar light source, and this LED planar light source can be converted into area source with line source, realize flat luminous, and luminous even and soft, again and cost low, simple in structure, easy to implement.
The utility model for the technical scheme that solves its technical problem and adopt is:
A kind of LED planar light source; Comprise reflecting plate, diffuser plate, LED light emitting source and frame; Said reflecting plate has two relative surfaces and is respectively reflecting surface and the back side, is printed with some leaded light points on the reflecting surface of said reflecting plate, and said diffuser plate is positioned at the side that said reflecting plate has reflecting surface; And there is the space between said diffuser plate and the said reflecting surface; Said reflecting plate, space and the diffuser plate that is printed with leaded light point forms a light softening structure, and said light softening structure is fixed in the said frame in its lateral edges place, and said LED light emitting source is arranged in the said frame and is positioned at the side edge in said space.The light that the LED light emitting source sends is injected into said space from side; When light was mapped to each leaded light point on the reflecting surface of reflecting plate, reverberation can destroy conditioned reflex and penetrate by said space is positive toward all angles diffusion then; Can line source be converted into area source; Reflecting plate can also be used for improving the service efficiency of light with in the said space of light reflected back except leaded light point is provided, effectively prevent dazzle through diffuser plate; Therefore the LED planar light source of the utility model can send even and soft light, and luminous efficiency is high.And for prior art LGP expensive, the utility model does not use LGP and the leaded light point is printed in the structure and the technical costs of reflecting plate lower, and effect is identical.
The utility model for the further technical scheme that solves its technical problem and adopt is:
Preferably, except a side that is provided with the LED light emitting source, all the other inboards all are provided with reflector plate in the inboard of said frame, and reflector plate is used to increase the service efficiency of light, prevent that light from being absorbed by frame.
Preferably, also be provided with base plate, said base plate is superimposed in the back side of said reflecting plate, and said base plate is in its side edge is fixed in said frame.Certainly, also said base plate can be set, the intensity of visual reflex plate and deciding can be omitted said base plate when the intensity of reflecting plate is suitable.
Preferably, said LED light emitting source is a LED lamp bar.
Preferably, said LED lamp bar is provided with at least one, and said LED lamp bar is arranged at the side edge of the illuminating part of said light softening structure side edge and LED lamp bar corresponding to said space.
Preferably, said leaded light point is made up of printing ink.
The beneficial effect of the utility model is: the LED planar light source of the utility model, comprise reflecting plate, diffuser plate, LED light emitting source and frame, and be printed with some leaded light points on the reflecting surface of reflecting plate; Diffuser plate is positioned at the side that reflecting plate has reflecting surface, and has the space between diffuser plate and the reflecting surface, and the LED light emitting source is arranged in the frame and is positioned at the side edge in space; The light that the LED light emitting source sends is injected into the space from side, and when light was mapped to each leaded light point on the reflecting surface of reflecting plate, reverberation can be toward all angles diffusion; Destroying conditioned reflex then penetrates by the space is positive; Can line source be converted into area source, reflecting plate can also be used for improving the service efficiency of light with in the light reflected back space except leaded light point is provided; Effectively prevent dazzle through diffuser plate again; Therefore the LED planar light source of the utility model can send even and soft light, and luminous efficiency is high, and for prior art LGP expensive; The utility model does not use LGP and that the leaded light point is printed in the structure and the technical costs of reflecting plate is lower, and effect is identical.
Description of drawings
Fig. 1 is the structural representation of the utility model.
The specific embodiment
Below through the specific embodiment of specific instantiation explanation the utility model, the personage who is familiar with this skill can be understood the advantage and the effect of the utility model easily by the content that this specification disclosed.The utility model also can other different mode be implemented, and, under the category that discloses from the utility model that is not contrary to, can give different modifications and change that is.
Embodiment: a kind of LED planar light source; Comprise reflecting plate 2, diffuser plate 4, LED light emitting source 5 and frame 6; Said reflecting plate 2 has two relative surfaces and is respectively reflecting surface and the back side; Be printed with some leaded light points 21 on the reflecting surface of said reflecting plate; Said diffuser plate 4 is positioned at the side that said reflecting plate 2 has reflecting surface, and has space 3 between said diffuser plate 4 and the said reflecting surface, and said reflecting plate 2, space 3 and the diffuser plate 4 that is printed with leaded light point forms a light softening structure; Said light softening structure is in said frame 6 is fixed at its lateral edges place, and said LED light emitting source 5 is arranged in the said frame 6 and is positioned at the side edge in said space 3.
Except a side that is provided with LED light emitting source 5, all the other inboards all are provided with reflector plate 7 in the inboard of said frame 6, and this reflector plate is used in the light reflected back space, to increase the service efficiency of light, prevent that light from being absorbed by frame.
Also can be provided with base plate 1 according to the intensity needs, said base plate 1 is superimposed in the back side of said reflecting plate 2, and said base plate 1 is in its side edge is fixed in said frame 6.Certainly, also said base plate can be set, the intensity of visual reflex plate and deciding can be omitted said base plate when the intensity of reflecting plate is suitable.
Said LED light emitting source 5 is for LED lamp bar and be provided with at least one, and said LED lamp bar is arranged at the side edge of the illuminating part of said light softening structure side edge and LED lamp bar corresponding to said space 3.
Said leaded light point 21 is made up of printing ink.
The LED planar light source of the utility model can be a shape square or that other are possible.
The foregoing description is merely illustrative the utility model principle and effect thereof, but not is used to limit the utility model.The rights protection scope of the utility model should be listed like claims.
Claims (6)
1. LED planar light source; It is characterized in that: comprise reflecting plate (2), diffuser plate (4), LED light emitting source (5) and frame (6); Said reflecting plate (2) has two relative surfaces and is respectively reflecting surface and the back side; Be printed with some leaded light points (21) on the reflecting surface of said reflecting plate; Said diffuser plate (4) is positioned at the side that said reflecting plate (2) has reflecting surface, and has space (3) between said diffuser plate (4) and the said reflecting surface, and said reflecting plate (2), space (3) and the diffuser plate (4) that is printed with leaded light point forms light softening structure; Said light softening structure is in said frame (6) is fixed at its lateral edges place, and said LED light emitting source (5) is arranged in the said frame (6) and is positioned at the side edge of said space (3).
2. LED planar light source as claimed in claim 1 is characterized in that: except a side that is provided with LED light emitting source (5), all the other inboards all are provided with reflector plate (7) in the inboard of said frame (6).
3. LED planar light source as claimed in claim 1 is characterized in that: also be provided with base plate (1), said base plate (1) is superimposed in the back side of said reflecting plate (2), and said base plate (1) is in its side edge is fixed in said frame (6).
4. LED planar light source as claimed in claim 1 is characterized in that: said LED light emitting source (5) is a LED lamp bar.
5. LED planar light source as claimed in claim 4 is characterized in that: said LED lamp bar is provided with at least one, and said LED lamp bar is arranged at the side edge of the illuminating part of said light softening structure side edge and LED lamp bar corresponding to said space (3).
6. LED planar light source as claimed in claim 1 is characterized in that: said leaded light point (21) is made up of printing ink.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201401299U CN202521325U (en) | 2012-04-05 | 2012-04-05 | LED planar light source |
| TW101211806U TWM451470U (en) | 2012-03-14 | 2012-06-19 | Reflection sheet with light guide points, LED flat planar light source, LED flat lamp and plate LED lamp |
| KR2020120005622U KR200471995Y1 (en) | 2012-03-14 | 2012-06-29 | A led planar light source and flat luminaires and flat type led lamp |
| JP2012004457U JP3178835U (en) | 2012-03-14 | 2012-07-20 | Reflective sheet having light guide dots, LED flat light source, LED flat panel light, and flat panel LED light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201401299U CN202521325U (en) | 2012-04-05 | 2012-04-05 | LED planar light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202521325U true CN202521325U (en) | 2012-11-07 |
Family
ID=47104274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201401299U Expired - Lifetime CN202521325U (en) | 2012-03-14 | 2012-04-05 | LED planar light source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202521325U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635798A (en) * | 2012-04-05 | 2012-08-15 | 昆山市诚泰电气股份有限公司 | LED plane light source |
| CN105805612A (en) * | 2014-12-31 | 2016-07-27 | 许孙 | Weight bearing high-waterproof LED illuminating system |
| US10900657B2 (en) | 2017-08-01 | 2021-01-26 | Technical Consumer Products, Inc. | Edge-lit light fixture having capabilities for a secondary service |
-
2012
- 2012-04-05 CN CN2012201401299U patent/CN202521325U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635798A (en) * | 2012-04-05 | 2012-08-15 | 昆山市诚泰电气股份有限公司 | LED plane light source |
| CN105805612A (en) * | 2014-12-31 | 2016-07-27 | 许孙 | Weight bearing high-waterproof LED illuminating system |
| US10900657B2 (en) | 2017-08-01 | 2021-01-26 | Technical Consumer Products, Inc. | Edge-lit light fixture having capabilities for a secondary service |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121107 |
|
| CX01 | Expiry of patent term |