CN103775963A - Reflective type lamp cup structure and back light module - Google Patents
Reflective type lamp cup structure and back light module Download PDFInfo
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- CN103775963A CN103775963A CN201410046885.9A CN201410046885A CN103775963A CN 103775963 A CN103775963 A CN 103775963A CN 201410046885 A CN201410046885 A CN 201410046885A CN 103775963 A CN103775963 A CN 103775963A
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Abstract
The invention discloses a reflective type lamp cup structure and a back light module. The back light module comprises a light guide plate and a plurality of reflective type lamp cup structures, wherein a plurality of grooves are formed in the bottom end of the light guide plate; the reflective type lamp cup structures are respectively and partially accommodated into the grooves; each reflective type lamp cup structure comprises a light transmitting body and a light absorbing material; a light inlet surface for receiving at least one point light source is arranged at the bottom end of each light transmitting body, a reflecting surface corresponding to the light inlet surface is arranged at the top end of the light transmitting body, and an annular uncontrollable light outlet surface and an annular controllable light outlet surface are arranged on the periphery of the light transmitting body, the annular uncontrollable light outlet surface is connected with the light inlet surface, and the annular controllable light outlet surface is connected between the annular uncontrollable light outlet surface and the reflecting surface; the light absorbing materials are arranged around the annular uncontrollable light outlet surfaces of the light transmitting bodies, and are exposed out of the grooves. The reflective type lamp cup structure and the back light module have the advantages that the possibility that a small part of light penetrates out of the light transmitting bodies due to repeated reflecting in the light transmitting bodies is effectively avoided, so that the generation of a light ring of the light guide plate caused by stray light is completely avoided, and the light uniformity of the light guide plate is effectively improved.
Description
Technical field
The present invention relates to a kind of reflective Lam-cup structure and backlight module, relate in particular to a kind of reflective Lam-cup structure and backlight module that absorbs veiling glare with extinction material.
Background technology
In general, the effect of LGP is to guide the transmission direction of light beam, makes light beam evenly to be projected and to be gone out by the exiting surface of LGP.In the prior art, some LGP can coordinate reflective Lamp cup that required light source is provided, but can producing, known used reflective Lamp cup fails directly to invest the veiling glare of LGP inside, cause LGP can cause because of veiling glare the generation of bright circle, and reduce the optical uniformity of LGP.
Summary of the invention
The technical problem to be solved in the present invention is can reduce the defect of the optical uniformity of LGP because veiling glare causes the generation of bright circle in order to overcome LGP in reflective Lam-cup structure traditional in prior art, and a kind of reflective Lam-cup structure and mould backlight are provided.
The present invention solves above-mentioned technical problem by following technical proposals:
A kind of reflective Lam-cup structure, its feature is, it comprises:
One light penetrating object, the bottom of described light penetrating object has one for receiving the incidence surface of at least one spot light, the top of described light penetrating object has one corresponding to described incidence surface and the reflecting surface that caves inward, and the surrounding of described light penetrating object has not controlled exiting surface of ring-type and that is connected in described incidence surface and is connected in the controlled exiting surface of ring-type between the not controlled exiting surface of described ring-type and described reflecting surface; And
One extinction material, described extinction material is around on the not controlled exiting surface of the described ring-type that is arranged on described light penetrating object.
Preferably, described extinction material be one be coated on the not controlled exiting surface of described ring-type with cover described ring-type not the dark color of controlled exiting surface be extinction glue.
Preferably, described extinction material be one be attached on the not controlled exiting surface of described ring-type with cover described ring-type not the dark color of controlled exiting surface be reflector plate.
Preferably, described extinction material be one be set on the not controlled exiting surface of described ring-type with cover described ring-type not the dark color of controlled exiting surface be rubber circle.
The present invention also provides a kind of backlight module, and its feature is, it comprises:
One LGP, the bottom of described LGP has multiple grooves; And
Multiple reflective Lam-cup structures, multiple described reflective Lam-cup structures are partly placed in respectively in multiple described grooves, and wherein described in each, reflective Lam-cup structure comprises:
One light penetrating object, the bottom of described light penetrating object has one for receiving the incidence surface of at least one spot light, the top of described light penetrating object has one corresponding to described incidence surface and the reflecting surface that caves inward, and the surrounding of described light penetrating object has not controlled exiting surface of ring-type and that is connected in described incidence surface and is connected in the controlled exiting surface of ring-type between the not controlled exiting surface of described ring-type and described reflecting surface; And
One extinction material, described extinction material is around on the not controlled exiting surface of the described ring-type that is arranged on described light penetrating object and exposed outside corresponding described groove.
Preferably, described extinction material be one be coated on the not controlled exiting surface of described ring-type with cover described ring-type not the dark color of controlled exiting surface be extinction glue.
Preferably, described extinction material be one be attached on the not controlled exiting surface of described ring-type with cover described ring-type not the dark color of controlled exiting surface be reflector plate.
Preferably, described extinction material be one be set on the not controlled exiting surface of described ring-type with cover described ring-type not the dark color of controlled exiting surface be rubber circle, and described dark color is the bottom that rubber circle contacts described LGP, the height of being contained to define the described light penetrating object of part that is placed in described groove.
Preferably, described backlight module also comprises a backboard, the top of described backboard has multiple locating slots that correspond respectively to multiple described light penetrating objects, described in each, the not controlled exiting surface of the described ring-type of the described light penetrating object of reflective Lam-cup structure is placed in corresponding described locating slot, and described extinction material is that a dark color being formed on the inwall of corresponding described locating slot is light-absorption layer.
Preferably, described in each, the described reflecting surface of the described light penetrating object of reflective Lam-cup structure is placed in corresponding described groove completely.
Meeting on the basis of this area general knowledge, above-mentioned each optimum condition, can be combined, and obtains the preferred embodiments of the invention.
Positive progressive effect of the present invention is:
The present invention can effectively stop " the small part light beam that carries out interreflection in the inside of light penetrating object " to penetrate out the possibility of light penetrating object, to avoid LGP can cause because of veiling glare the generation of bright circle completely, and then effectively promotes the optical uniformity of LGP.
Accompanying drawing explanation
Fig. 1 is the side-looking generalized section of the backlight module of the embodiment of the present invention 1.
Fig. 2 is the side-looking generalized section of the backlight module of the embodiment of the present invention 2.
Fig. 3 is the side-looking generalized section of the backlight module of the embodiment of the present invention 3.
Description of reference numerals:
Backlight module: M
LGP: 1 bottom: 100 grooves: 10
Reflective Lam-cup structure: 2 light penetrating objects: 20 incidence surfaces: 200
Reflecting surface: the not controlled exiting surface of 201 ring-types: 202
The controlled exiting surface of ring-type: 203 dark colors are extinction glue: 21
Dark color is reflector plate: 22 dark colors are rubber circle: 23 dark colors are light-absorption layer: 24
Spot light: 3 most of light beams: L1 small part light beam: L2
Backboard: 4 tops: 400 locating slots: 40
Highly: H
The specific embodiment
Lift a preferred embodiment below, and carry out by reference to the accompanying drawings the clearer the present invention that intactly illustrates.
Refer to shown in Fig. 1, the embodiment of the present invention 1 provides a kind of backlight module M, and it comprises a LGP 1 and multiple reflective Lam-cup structure 2.
First, LGP 1 has multiple grooves 10 that cave inward from its bottom 100, and the size of multiple groove 10 is all identical substantially, can certainly be different.About the making of LGP 1 with multiple grooves 10, for instance, multiple grooves 10 can be in the time making LGP 1, the just direct integrally formed bottom 100 at LGP 1, or after not yet fluted 100 LGP 1 first completes in advance, then form multiple grooves 10 by the mode of following process in the bottom 100 of LGP 1.But, the present invention not with above-mentioned for example be limited.
Moreover multiple reflective Lam-cup structures 2 correspond respectively to multiple grooves 10 of LGP 1, and multiple reflective Lam-cup structure 2 can partly be placed in respectively in multiple grooves 10.Further, each reflective Lam-cup structure 2 at least can comprise a light penetrating object 20 and an extinction material.The bottom of light penetrating object 20 has one for receiving the incidence surface 200 of at least one spot light 3, the top of light penetrating object 20 has one corresponding to (or say in contrast to) incidence surface 200 and the reflecting surface 201 that caves inward, and the surrounding of light penetrating object 20 has not controlled exiting surface 202 of ring-type and that is connected in incidence surface 200 and is connected in the controlled exiting surface 203 of ring-type between the not controlled exiting surface 202 of ring-type and reflecting surface 201.In addition, extinction material can be around on the not controlled exiting surface 202 of the ring-type that is arranged on light penetrating object 20 and exposed outside corresponding groove 10.
For instance, light penetrating object 20 can be made by any transparent material.The incidence surface 200 of light penetrating object 20 can be an even curface, the reflecting surface 201 of light penetrating object 20 can be one and is caved inward and presented taper or trumpet-shaped reflecting surface by the top of light penetrating object 20, and the not controlled exiting surface 202 of ring-type and the controlled exiting surface 203 of the ring-type circumferential surface with formation light penetrating object 20 connected with each other.In addition, extinction material can be one by coating method (or other any forming mode, for example spraying or printing etc.) be the extinction glue of for example black of extinction glue 21(or grey with the dark color being formed on the not controlled exiting surface 202 of ring-type), wherein dark color is that extinction glue 21 can be the not controlled exiting surface 202 of ring-type that covers or partly cover corresponding light penetrating object 20 completely.Certainly, the present invention not with above-mentioned for example be limited.For example, such as can be dark color and be the extinction material of extinction glue 21 also replaceable is that a dark color being attached on the not controlled exiting surface 202 of ring-type is reflector plate 22, the reflector plate of black or grey.
Further, at least one spot light 3 can be provided by light emitting diode (LED) or other luminescence component.When at least one spot light 3 is from incidence surface 200 drops into the inside of light penetrating object 20, the direct trend of purchasing of most of light beam L1 meeting reflecting surface 201 among at least one spot light 3 carries out the exhibition light of total-reflection type, and the most of light beam L1 carrying out after total-reflection type exhibition light can directly pass the controlled exiting surface 203 of ring-type, and the inside of investing LGP 1 in the mode of ring-type exhibition light.In addition, when at least one spot light 3 is from incidence surface 200 drops into the inside of light penetrating object 20, small part light beam L2 (or claiming veiling glare) among at least one spot light 3 can directly not invest reflecting surface 201, but can carry out interreflection in the inside of light penetrating object 20.But the small part light beam L2 that carries out interreflection in the inside of light penetrating object 20 finally can invest the not controlled exiting surface 202 of ring-type, be that extinction glue 21 or dark color are that the extinction material of reflector plate 22 absorbs and can be dark color.Therefore, the present invention can effectively stop " the small part light beam L2 that carries out interreflection in the inside of light penetrating object 20 " to penetrate out the possibility of light penetrating object 20, to avoid LGP 1 to cause the generation of bright circle because of veiling glare completely, and then effectively promote the optical uniformity of LGP 1.
It is worth mentioning that, in order to promote the exhibition optical efficiency of reflective Lam-cup structure 2, the reflecting surface 201 of the light penetrating object 20 of each reflective Lam-cup structure 2 must be placed in corresponding groove 10 completely.By this, carry out most of light beam L1 after total-reflection type exhibition light through after the controlled exiting surface 203 of ring-type, can all invest the inside of LGPs 1, occur and do not have the situation that does not drop into the inside of LGP 1 and produce light leak.
Refer to shown in Fig. 2, the embodiment of the present invention 2 provides a kind of backlight module M, and it comprises a LGP 1 and multiple reflective Lam-cup structure 2.From Fig. 2 and Fig. 1 relatively, the embodiment of the present invention 2 is with the difference of embodiment 1 maximum: in embodiment 2, it is rubber circle 23 with the dark color that covers the not controlled exiting surface 202 of ring-type that the replaceable one-tenth one of extinction material is set on the not controlled exiting surface 202 of ring-type, the pliability rubber ring of for example black or grey.Further, the dark color that embodiment 2 provides be rubber circle 23 can a direct action be just set in corresponding light penetrating object 20 the not controlled exiting surface 202 of ring-type on, and need not be that extinction glue 21 or dark color are that reflector plate 22 also will just can be arranged on the not controlled exiting surface 202 of ring-type of corresponding light penetrating object 20 by following process mode as the dark color of embodiment 1.By this, according to the illustrated optical path of embodiment 1, carrying out the veiling glare of interreflection finally can invest the not controlled exiting surface 202 of ring-type in the inside of light penetrating object 20, is that the extinction material of rubber circle 23 absorbs and can be dark color.Therefore, the present invention can effectively stop " veiling glare that carries out interreflection in the inside of light penetrating object 20 " to penetrate out the possibility of light penetrating object 20, to avoid LGP 1 to cause the generation of bright circle because of veiling glare completely, and then effectively promote the optical uniformity of LGP 1.
It is worth mentioning that, when multiple light penetrating objects 20 are partly placed in respectively multiple grooves 10 when interior, because multiple dark colors are the directly bottom 100 of contact (or saying upwards contact) LGP 1 of rubber circle 23, can be placed in the degree of depth in corresponding groove 10 so can limit light penetrating object 20.By this, each light penetrating object 20 can be just the position-limiting action that rubber circle 23 provides by dark color, why to define height H that " being placed in the part light penetrating object 20 in groove 10 " contained, and then effectively promote each light penetrating object 20 and be partly placed in the positioning accurate accuracy in corresponding groove 10.
Refer to shown in Fig. 3, the embodiment of the present invention 3 provides a kind of backlight module M, and it comprises a LGP 1 and multiple reflective Lam-cup structure 2.From Fig. 3 and Fig. 1 relatively, the embodiment of the present invention 3 is with the difference of embodiment 1 maximum: in embodiment 3, the backlight module M of embodiment 3 also further comprises a backboard 4, and the top 400 of backboard 4 has multiple locating slots 40 that correspond respectively to multiple light penetrating objects 20.Further, the not controlled exiting surface 202 of ring-type of the light penetrating object 20 of each reflective Lam-cup structure 2 can be placed in corresponding locating slot 40, and it is light-absorption layer 24 that extinction material can be a dark color being formed on the inwall of corresponding locating slot 40, the light-absorption layer of for example black or grey.
By this, according to the illustrated optical path of embodiment 1, carrying out the veiling glare of interreflection finally can invest the not controlled exiting surface 202 of ring-type in the inside of light penetrating object 20, is that the extinction material of light-absorption layer 24 absorbs and can be dark color.Therefore, the present invention can effectively stop " veiling glare that carries out interreflection in the inside of light penetrating object 20 " to penetrate out the possibility of light penetrating object 20, to avoid LGP 1 to cause the generation of bright circle because of veiling glare completely, and then effectively promote the optical uniformity of LGP 1.
In sum, the reflective Lam-cup structure 2 that the embodiment of the present invention provides and backlight module M, it can see through the design of " extinction material is around on the not controlled exiting surface 202 of the ring-type that is arranged on light penetrating object 20 " and " extinction material around on the not controlled exiting surface 202 of the ring-type that is arranged on light penetrating object 20 and exposed outside corresponding groove 10 ", effectively to solve the disappearance of " LGP can cause because of veiling glare the generation of bright circle, and reduces the optical uniformity of LGP ".
Although more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that this only illustrates, protection scope of the present invention is limited by appended claims.Those skilled in the art is not deviating under the prerequisite of principle of the present invention and essence, can make various changes or modifications to these embodiments, but these changes and modification all fall into protection scope of the present invention.
Claims (10)
1. a reflective Lam-cup structure, is characterized in that, it comprises:
One light penetrating object, the bottom of described light penetrating object has one for receiving the incidence surface of at least one spot light, the top of described light penetrating object has one corresponding to described incidence surface and the reflecting surface that caves inward, and the surrounding of described light penetrating object has not controlled exiting surface of ring-type and that is connected in described incidence surface and is connected in the controlled exiting surface of ring-type between the not controlled exiting surface of described ring-type and described reflecting surface; And
One extinction material, described extinction material is around on the not controlled exiting surface of the described ring-type that is arranged on described light penetrating object.
2. reflective Lam-cup structure as claimed in claim 1, is characterized in that, described extinction material be one be coated on the not controlled exiting surface of described ring-type with cover described ring-type not the dark color of controlled exiting surface be extinction glue.
3. reflective Lam-cup structure as claimed in claim 1, is characterized in that, described extinction material be one be attached on the not controlled exiting surface of described ring-type with cover described ring-type not the dark color of controlled exiting surface be reflector plate.
4. reflective Lam-cup structure as claimed in claim 1, is characterized in that, described extinction material be one be set on the not controlled exiting surface of described ring-type with cover described ring-type not the dark color of controlled exiting surface be rubber circle.
5. a backlight module, is characterized in that, it comprises:
One LGP, the bottom of described LGP has multiple grooves; And
Multiple reflective Lam-cup structures, multiple described reflective Lam-cup structures are partly placed in respectively in multiple described grooves, and wherein described in each, reflective Lam-cup structure comprises:
One light penetrating object, the bottom of described light penetrating object has one for receiving the incidence surface of at least one spot light, the top of described light penetrating object has one corresponding to described incidence surface and the reflecting surface that caves inward, and the surrounding of described light penetrating object has not controlled exiting surface of ring-type and that is connected in described incidence surface and is connected in the controlled exiting surface of ring-type between the not controlled exiting surface of described ring-type and described reflecting surface; And
One extinction material, described extinction material is around on the not controlled exiting surface of the described ring-type that is arranged on described light penetrating object and exposed outside corresponding described groove.
6. backlight module as claimed in claim 5, is characterized in that, described extinction material be one be coated on the not controlled exiting surface of described ring-type with cover described ring-type not the dark color of controlled exiting surface be extinction glue.
7. backlight module as claimed in claim 5, is characterized in that, described extinction material be one be attached on the not controlled exiting surface of described ring-type with cover described ring-type not the dark color of controlled exiting surface be reflector plate.
8. backlight module as claimed in claim 5, it is characterized in that, described extinction material be one be set on the not controlled exiting surface of described ring-type with cover described ring-type not the dark color of controlled exiting surface be rubber circle, and described dark color is the bottom that rubber circle contacts described LGP, the height of being contained to define the described light penetrating object of part that is placed in described groove.
9. backlight module as claimed in claim 5, it is characterized in that, described backlight module also comprises a backboard, the top of described backboard has multiple locating slots that correspond respectively to multiple described light penetrating objects, described in each, the not controlled exiting surface of the described ring-type of the described light penetrating object of reflective Lam-cup structure is placed in corresponding described locating slot, and described extinction material is that a dark color being formed on the inwall of corresponding described locating slot is light-absorption layer.
10. backlight module as claimed in claim 5, is characterized in that, described in each, the described reflecting surface of the described light penetrating object of reflective Lam-cup structure is placed in corresponding described groove completely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410046885.9A CN103775963A (en) | 2014-02-10 | 2014-02-10 | Reflective type lamp cup structure and back light module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410046885.9A CN103775963A (en) | 2014-02-10 | 2014-02-10 | Reflective type lamp cup structure and back light module |
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| CN103775963A true CN103775963A (en) | 2014-05-07 |
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| CN201410046885.9A Pending CN103775963A (en) | 2014-02-10 | 2014-02-10 | Reflective type lamp cup structure and back light module |
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| WO2016169072A1 (en) * | 2015-04-22 | 2016-10-27 | 武汉华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN107633781A (en) * | 2016-07-18 | 2018-01-26 | 比亚迪股份有限公司 | Gearshift luminescent panel and there is its automobile |
| CN108761910A (en) * | 2018-05-28 | 2018-11-06 | 京东方科技集团股份有限公司 | Electronic equipment, display device, backlight module and its light source |
| US11099426B2 (en) | 2018-05-14 | 2021-08-24 | Boe Technology Group Co., Ltd. | Backlight module, manufacturing method thereof and display device |
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| US7261454B2 (en) * | 2005-09-23 | 2007-08-28 | Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. | System and method for forming a back-lighted array using an omni-directional light source |
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| WO2016169072A1 (en) * | 2015-04-22 | 2016-10-27 | 武汉华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN107633781A (en) * | 2016-07-18 | 2018-01-26 | 比亚迪股份有限公司 | Gearshift luminescent panel and there is its automobile |
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| US10935844B2 (en) | 2018-05-28 | 2021-03-02 | Hefei Boe Display Lighting Co., Ltd. | Light source, backlight module, display device, and electronic device |
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Application publication date: 20140507 |