CN204026333U - The two-sided light extracting LED backlight source module of side entering type - Google Patents
The two-sided light extracting LED backlight source module of side entering type Download PDFInfo
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- CN204026333U CN204026333U CN201420389967.9U CN201420389967U CN204026333U CN 204026333 U CN204026333 U CN 204026333U CN 201420389967 U CN201420389967 U CN 201420389967U CN 204026333 U CN204026333 U CN 204026333U
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- light
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- led lamp
- brace table
- light source
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Abstract
The utility model relates to a kind of backlight, is specifically related to the two-sided light extracting LED backlight source module of a kind of side entering type.It comprises two LGPs, LED lamp bar light source, the middle frame support that are oppositely arranged, LGP is provided with exiting surface and at least one incidence surface, exiting surface is provided with blooming piece, the one side that LGP is relative with exiting surface is light guiding surface, light guiding surface is provided with leaded light site, the light guiding surface of two LGPs is staggered relatively, and each incidence surface correspondence is provided with a row LED lamp bar light source.Adopt after this scheme, every LGP arranges a row LED lamp bar light source, every row LED lamp bar light source, except for corresponding LGP provides light source, can also provide light source for adjacent LGP, thereby improve brightness and the light extraction efficiency of the bright dipping of backlight source module two sides; In the time that the light of LED lamp pearl enters from incidence surface, in the time that light is mapped to each leaded light site, reverberation can, toward all angles diffusion, be penetrated by the exiting surface of LGP, improves and uniformity of light.
Description
Technical field
The utility model relates to a kind of backlight, is specifically related to the two-sided light extracting LED backlight source module of a kind of side entering type.
Background technology
LED light source has the advantages such as volume is little, power is low, the life-span is long, environmental protection, has application very widely in fields such as semiconductor lighting, lamps for vehicle, signal demonstration, display backlight sources.LED-backlit source module comprises several parts such as light source, LGP, blooming piece and frame, and in middle large area backlight module, arrangement is divided into side entering type and straight-down negative.
Side-edge type backlight module, is placed on the backlight of making through the side of the LGP of particular design by wire or point source of light.The needs that use according to reality, can make again unilateral, bilateral formula, even three limit formulas, four limit formulas.Its core component is LGP, and the distribution of bottom surface of light guide plate light scattering dot matrix determines the optical property that of LGP.
At present, LED light source module mostly is the form of one side bright dipping, in order to realize two-sided bright dipping, generally takes following method:
The first: as the disclosed lighting at two sides backlight of Granted publication CN 201739845 U, the bright enhancement film (3) that it comprises LED light source (1), LGP (2) and has optically focused effect or enhanced shine; It is characterized in that: LGP (2) has upper and lower surface, on upper and lower surface, be shaped with respectively the concavo-convex decorative pattern that light is played to reflection and/or refraction action; LED light source (1) is arranged in the direction vertical with LGP (2) upper and lower surface; Bright enhancement film (3) is affixed on respectively the upper and lower surface of LGP (2).A this LGP two sides bright dipping, bright dipping is comparatively inhomogeneous, light extraction efficiency is low also lower.
The second: as the disclosed a kind of double-side backlight of Granted publication CN 201621556 U, comprise a glue frame, at the middle part of a side of glue frame, be fixed with multiple LED, it is characterized in that: the second LGP that is provided with the first LGP and light-emitting window that light-emitting window points to first direction and points to the second direction contrary with first direction in glue frame, light direction at the first LGP and the second LGP is provided with lamina membranacea, between described the first LGP and the second LGP, be provided with one deck double-sided reflecting type reflectance coating, utilize the high reflectance of reflectance coating to improve brightness.In this backlight, two LGPs are staggered relatively, use same linear light sources, and optical efficiency is lower.
In view of this, the inventor furthers investigate for two-sided light extracting LED light source module, has proposed a kind of novel two-sided light extracting LED light source die prescription case.
Utility model content
The purpose of this utility model is to provide the two-sided light extracting LED backlight source module of side entering type that a kind of bright dipping is even, optical efficiency is higher, emitting brightness is higher.
In order to achieve the above object, the utility model adopts such technical scheme:
The two-sided light extracting LED backlight source module of side entering type, comprise two LGPs that are oppositely arranged, the LED lamp bar light source that is arranged on LGP side, middle frame support for packaged LED lamp bar light source and LGP, each LGP is provided with exiting surface and at least one incidence surface, exiting surface correspondence is provided with blooming piece, it is characterized in that: the one side that described LGP is relative with described exiting surface is light guiding surface, light guiding surface is provided with leaded light site, the described light guiding surface of two described LGPs is staggered relatively, and described in each, incidence surface correspondence is provided with a LED lamp bar light source.
In such scheme, described LED lamp bar light source is a row LED lamp pearl
Preferably, described incidence surface is one, and the described incidence surface of two described LGPs is positioned at same plane, and described LED lamp pearl is located on same aluminium base.
Preferably, in described middle frame support, be provided with holding tank, the two side of holding tank forms the first brace table and the second brace table that support described LGP, between the first brace table and the second brace table, form optical channel, described LED lamp pearl is positioned at optical channel, forms the bar-shaped trough that holds described aluminium base between the first brace table, the second brace table and the bottom of holding tank.
Further, described the first brace table and described the second brace table opposite face are equipped with reflective membrane.
Adopt after the technical solution of the utility model, adopt two LGPs, every LGP arranges a LED lamp bar light source, every LED lamp bar light source is except providing light source for corresponding LGP, can also be for adjacent LGP provides light source, thus brightness and the light extraction efficiency of the bright dipping of backlight source module two sides improved; In the time that the light of LED lamp bar light source enters from incidence surface, in the time that light is mapped to each leaded light site, reverberation can, toward all angles diffusion, then destroy conditioned reflex and be penetrated by the exiting surface of LGP, improves and uniformity of light.
Brief description of the drawings
Fig. 1 structural representation of the present utility model;
Fig. 2 is the enlarged drawing at A place in Fig. 1;
Fig. 3 is the another kind of structural representation of the utility model.
In figure:
1-LGP 11-exiting surface
12-incidence surface 21-aluminium base
22-LED lamp pearl 3-middle frame support
31-first brace table 32-the second brace table
3-bar-shaped trough 34-reflective membrane
13-leaded light site
Detailed description of the invention
Be described in detail the technical solution of the utility model below in conjunction with accompanying drawing in order further to explain.As shown in Figure 1 to Figure 2, the two-sided light extracting LED backlight source module of side entering type, comprises that two LGPs 1, correspondences being oppositely arranged are arranged on the blooming piece (not shown) of the exiting surface of every LGP 1, are arranged on the LED lamp bar light source of LGP 1 side, middle frame support 3 for packaged LED lamp bar light source and LGP 1.Blooming piece can adopt bright enhancement film/sheet, diffusion barrier/sheet, reflector plate, black/white glue etc., is arranged on the exiting surface 11 of LGP 1, and it is not inventive point place, and those skilled in the art can select as required.In the utility model, each LGP 1 is provided with at least one incidence surface 12, the one side that described LGP 1 is relative with described exiting surface 11 be light guiding surface (in figure because of two LGPs 1 relatively laminating be blocked), light guiding surface is laid with leaded light site 13.The distribution form of leaded light site 13 designs according to practical situations such as the sizes of the quantity of incidence surface 12, position and LGP 1.Conventionally adopt use PMMA or the PC base material as LGP 1, in base material bottom surface printing net-point or laser engraving site, optical grade sheet material is drawn the light sending from LED lamp and is stopped at optical grade plate surface, in the time that light is mapped to each leaded light site 13, reverberation can be toward all angles diffusion, then destroying conditioned reflex by LGP 1 exiting surface. in the utility model, the described light guiding surface of two described LGPs 1 is staggered relatively, and sticks together.
Shown in seeing figures.1.and.2, in the first embodiment of the present utility model, the incidence surface 12 of every LGP 1 is one, the described incidence surface 12 of two LGPs 1 is arranged to be located at side by side and is formed together a plane, one row LED lamp bar light source is respectively set under each incidence surface 12, lamp bar light source selects row LED lamp pearl 22, two row LED lamp pearls 22 to be arranged on same aluminium base.
In such scheme, middle frame support 3 can be set in this way, in middle frame support 3, be provided with holding tank, the two side of holding tank forms the first brace table 31 and the second brace table 32 that support described LGP 1, the one side that two LGPs 1 are arranged to light guiding surface sticks together, and the sub-fraction of incidence surface 12 is erected on the first brace table 31 and the second brace table 32.The upper surface of accepting groove two side forms in order to the clamping part of clamping light guide board 1 to ensure the stable setting of LGP 1.Between the first brace table 31, the second brace table 32 and the bottom of holding tank, form the bar-shaped trough 33 that holds described aluminium base 21, aluminium base 21 is embedded in bar-shaped trough 33, is used for drawing from the side of aluminium base 21 for power supply and power line that LED lamp pearl 22 is powered.Between the first brace table 31 and the second brace table 32, form optical channel, described LED lamp pearl 22 is positioned at optical channel just relative with the incidence surface 12 of LGP 1.Adopt the middle frame support 3 of this structure, can ensure that most of light that LED lamp pearl 22 irradiates out enters incidence surface 12, promote the light extraction efficiency of LGP 1 exiting surface 11, ensure emitting brightness.Further, described the first brace table 31 and described the second brace table 32 opposite faces are equipped with reflective membrane 34.By reflective membrane 34 is set, can will be irradiated to light reflection on the first brace table 31 and the second brace table 32 to incidence surface 12, further to promote the utility model optical efficiency.
With reference to Fig. 3, it is the another kind of structural representation of the utility model, every LGP 1 arranges two incidence surfaces 12, two incidence surfaces 12 are positioned at two sides that LGP 1 is relative, correspondingly, middle frame support 3 is set to two, and the structure of each middle frame support 3 is the same with the structure of the middle frame support 3 in the first embodiment, also relative set aluminium base 21 and LED lamp pearl 22 in each middle frame support 3.Adopt this structure can further increase the light extraction efficiency of exiting surface 11, to be lifted out brightness.Certainly, those skilled in the art also can arrange incidence surface in two other side of LGP 1 as required, and middle frame support, aluminium base, LED lamp pearl are correspondingly set, carry out light inlet to realize from three sides or four sides of LGP 1, to improve the brightness of light.
Product form of the present utility model is not limited to this case diagram and embodiment, and anyone carries out suitable variation or the modification of similar thinking to it, all should be considered as not departing from patent category of the present utility model.
Claims (5)
1. the two-sided light extracting LED backlight source module of side entering type, comprise two LGPs that are oppositely arranged, the LED lamp bar light source that is arranged on LGP side, middle frame support for packaged LED lamp bar light source and LGP, each LGP is provided with exiting surface and at least one incidence surface, exiting surface correspondence is provided with blooming piece, it is characterized in that: the one side that described LGP is relative with described exiting surface is light guiding surface, light guiding surface is provided with leaded light site, the described light guiding surface of two described LGPs is staggered relatively, and described in each, incidence surface correspondence is provided with a LED lamp bar light source.
2. the two-sided light extracting LED backlight source module of side entering type as claimed in claim 1, is characterized in that: described LED lamp bar light source is a row LED lamp pearl.
3. the two-sided light extracting LED backlight source module of side entering type as claimed in claim 2, is characterized in that: described incidence surface is one, the described incidence surface of two described LGPs is positioned at same plane, and described LED lamp pearl is located on same aluminium base.
4. the two-sided light extracting LED backlight source module of side entering type as claimed in claim 3, it is characterized in that: in described middle frame support, be provided with holding tank, the two side of holding tank forms the first brace table and the second brace table that support described LGP, between the first brace table and the second brace table, form optical channel, described LED lamp pearl is positioned at optical channel, forms the bar-shaped trough that holds described aluminium base between the first brace table, the second brace table and the bottom of holding tank.
5. the two-sided light extracting LED backlight source module of side entering type as claimed in claim 4, is characterized in that: described the first brace table and described the second brace table opposite face are equipped with reflective membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420389967.9U CN204026333U (en) | 2014-07-15 | 2014-07-15 | The two-sided light extracting LED backlight source module of side entering type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420389967.9U CN204026333U (en) | 2014-07-15 | 2014-07-15 | The two-sided light extracting LED backlight source module of side entering type |
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| CN204026333U true CN204026333U (en) | 2014-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420389967.9U Expired - Fee Related CN204026333U (en) | 2014-07-15 | 2014-07-15 | The two-sided light extracting LED backlight source module of side entering type |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056824A (en) * | 2019-03-20 | 2019-07-26 | 江苏铁锚玻璃股份有限公司 | A kind of decorative lamp of optical texture |
| TWI688806B (en) * | 2018-03-23 | 2020-03-21 | 行家光電股份有限公司 | Linear beam shaped light emitting device, backlight module using the same |
| WO2020155706A1 (en) * | 2019-01-29 | 2020-08-06 | 瑞盎照明科技(广州)有限公司 | Panel light |
| US10797102B2 (en) | 2018-03-23 | 2020-10-06 | Maven Optronics Co., Ltd. | Chip-scale linear light-emitting device |
| CN112987167A (en) * | 2021-04-01 | 2021-06-18 | 苏州茂立光电科技有限公司 | Backlight module with double light guide plates |
-
2014
- 2014-07-15 CN CN201420389967.9U patent/CN204026333U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI688806B (en) * | 2018-03-23 | 2020-03-21 | 行家光電股份有限公司 | Linear beam shaped light emitting device, backlight module using the same |
| US10797102B2 (en) | 2018-03-23 | 2020-10-06 | Maven Optronics Co., Ltd. | Chip-scale linear light-emitting device |
| US11227891B2 (en) | 2018-03-23 | 2022-01-18 | Maven Optronics Co., Ltd. | Chip-scale linear light-emitting device |
| WO2020155706A1 (en) * | 2019-01-29 | 2020-08-06 | 瑞盎照明科技(广州)有限公司 | Panel light |
| CN110056824A (en) * | 2019-03-20 | 2019-07-26 | 江苏铁锚玻璃股份有限公司 | A kind of decorative lamp of optical texture |
| CN112987167A (en) * | 2021-04-01 | 2021-06-18 | 苏州茂立光电科技有限公司 | Backlight module with double light guide plates |
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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: 20141217 Termination date: 20150715 |
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| EXPY | Termination of patent right or utility model |