CN202305872U - Light guide plate and light source module - Google Patents
Light guide plate and light source module Download PDFInfo
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- CN202305872U CN202305872U CN2011203809255U CN201120380925U CN202305872U CN 202305872 U CN202305872 U CN 202305872U CN 2011203809255 U CN2011203809255 U CN 2011203809255U CN 201120380925 U CN201120380925 U CN 201120380925U CN 202305872 U CN202305872 U CN 202305872U
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- 241000826860 Trapezium Species 0.000 claims description 7
- 230000001186 cumulative effect Effects 0.000 claims description 4
- 238000004020 luminiscence type Methods 0.000 description 10
- 239000004065 semiconductor Substances 0.000 description 8
- 238000009826 distribution Methods 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000007598 dipping method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model provides a light guide plate and light source module. The light guide plate comprises a light incident surface, a light emergent surface, a reflecting surface and a plurality of light guide structures. The light-emitting surface is opposite to the reflecting surface, and two opposite sides of the light-entering surface are respectively bonded with the light-emitting surface and the reflecting surface. The light guide structures are arranged on the light incident surface, wherein one width of each light guide structure is gradually increased towards the direction of the light incident surface, and any two adjacent light guide structures and the light incident surface define a groove for accommodating a light source.
Description
Technical field
The utility model relates to a kind of LGP, and particularly relevant for a kind of LGP that promotes the light source module briliancy and can improve the outward appearance of light source module.
Background technology
Semiconductor luminous assembly, for example light emitting diode (LED) and laser diode (LD) they are a kind of made fine solid state light emitters of semiconductor material of utilizing, it can convert electrical energy into luminous energy.Because this group semiconductor light emitting assembly has that volume is little, driving voltage is low, reaction rate is fast, shatter-proof, characteristic such as the life-span is long; And can satisfy light, thin, short, the little demand of various application apparatus again, therefore become the photoelectric subassembly of quite popularizing in the daily life at present.
These semiconductor luminous assemblies have been widely used on the light source modules such as backlight module or lighting module at present.In order to reduce the thickness of light source modules such as backlight module or lighting module, usually light source module is designed to side incident type framework.Side incident type framework generally can comprise LGP and several semiconductor luminous assemblies.These semiconductor luminous assemblies are arranged on by the incidence surface of a side of LGP, and the conduction of the light transmission LGP that luminescence component sent, can be from being an angle with incidence surface, 90 degree for example, exiting surface penetrate LGP.
Yet,, also can cause the luminescence component place that is adjacent to of light source module to produce the uneven phenomenon of light and shade because the wide-angle emergent light of semiconductor luminous assembly can't obtain effective utilization, thereby not only can influence the briliancy of light source module.
At present, in order to promote the briliancy of light source module, mostly through increasing the usage quantity of luminescence component, perhaps, through increasing the brightness of luminescence component.But the usage quantity of increase luminescence component can cause cost of manufacture significantly to increase.In addition, increase the brightness of luminescence component, the heat that can cause luminescence component to distribute significantly increases, and except the serviceable life of luminescence component is shortened in meeting, more causes the heat radiation burden of light source module.
On the other hand, in order to improve the visual appearance of light source module, general way is the spacing distance that the reflection site on the LGP reflecting surface of contiguous LGP light inlet is carried out zone adjustment or adjustment luminescence component.Yet the mode to local adjustment is carried out in the reflection site of LGP can lose efficacy because the polarization of LGP is unstable.In addition, the mode at the interval of adjustment luminescence component can increase the complicacy of light source module in assembling, causes production capacity not good.
The utility model content
Therefore, a purpose of the utility model is providing a kind of LGP exactly, and it can increase the utilization rate of the wide-angle emergent light of light source, reduces the loss of light source bright dipping.
Another purpose of the utility model is that a kind of LGP and applied light source module thereof are being provided, and it can promote the briliancy of light source module under the situation that does not increase quantity of light source.
The another purpose of the utility model is that a kind of LGP and applied light source module thereof are being provided, and it can effectively improve light source module in the uneven problem of contiguous light source place's brightness light and shade.
According to the above-mentioned purpose of the utility model, a kind of LGP is proposed.This LGP comprises an incidence surface, an exiting surface, a reflecting surface and a plurality of light guide structure.Aforesaid exiting surface and reflecting surface are relative, and relative two sides of incidence surface engage with exiting surface and reflecting surface respectively.Light guide structure is arranged on the incidence surface, and wherein a width of each light guide structure is cumulative with the direction towards incidence surface, and appoint adjacent the two and the incidence surface of these light guide structures define a groove to be installed with a light source.
According to an embodiment of the utility model, each above-mentioned light guide structure is a trapezium structure.
According to another embodiment of the utility model, above-mentioned LGP also comprises a plurality of microstructures and is arranged on the incidence surface in the above-mentioned groove.
According to the another embodiment of the utility model, each above-mentioned light guide structure comprises two relative dip plane, and a pitch angle of each dip plane is spent more than or equal to 1, and less than 90 degree.According to a preferred embodiment of the utility model, the pitch angle of aforementioned each dip plane is more than or equal to 20, and is less than or equal to 80 degree.According to a better embodiment of the utility model, the pitch angle essence of aforementioned each dip plane equals 58 degree.
According to the above-mentioned purpose of the utility model, other proposes a kind of light source module.This light source module comprises a LGP and a light supply apparatus.This LGP comprises an incidence surface, an exiting surface, a reflecting surface and a plurality of light guide structure.Aforesaid exiting surface and reflecting surface are relative, and relative two sides of incidence surface engage with exiting surface and reflecting surface respectively.Light guide structure is arranged on the incidence surface.Wherein, a width of each light guide structure is cumulative with the direction towards incidence surface, and appoint adjacent the two and the incidence surface of these light guide structures define a groove.Light supply apparatus comprises a plurality of light sources, and wherein these light sources are separately positioned in the aforementioned recess.
According to an embodiment of the utility model, each above-mentioned light guide structure is a trapezium structure.According to a preferred embodiment of the utility model, above-mentioned LGP also comprises a plurality of microstructures and is arranged on the incidence surface in the groove.
According to another embodiment of the utility model, above-mentioned light supply apparatus also comprises a circuit board, and above-mentioned light source is arranged at a surface of circuit board and goes up and circuit board electric connection therewith, and wherein the aforementioned surfaces of circuit board engages with light guide structure.
Embodiment by above-mentioned the utility model can be known; One advantage of the utility model is exactly because through have the light guide structure of dip plane in the incidence surface setting of LGP; Can significantly improve the utilization rate of the wide-angle emergent light of light source; Therefore can reduce the loss of light source bright dipping, effectively promote the utilization ratio of light source.
Embodiment by above-mentioned the utility model can know that another advantage of the utility model is that the utility model can effectively promote the briliancy of light source module under the situation of the usage quantity that does not increase light source.
Embodiment by above-mentioned the utility model can be known; The another advantage of the utility model is exactly because the design of the LGP of the utility model can significantly improve the utilization rate of the wide-angle emergent light of light source, therefore can effectively improve light source module in the uneven problem of contiguous light source place's brightness light and shade.
Description of drawings
For letting the above-mentioned of the utility model and other purpose, characteristic, advantage and the embodiment can be more obviously understandable, the explanation of appended accompanying drawing be following:
Fig. 1 is the stereographic map that illustrates according to a kind of LGP of the embodiment of the utility model;
Fig. 2 is the top view that illustrates according to a kind of light source module of another embodiment of the utility model.
[primary clustering symbol description]
100a: LGP 100b: LGP
102: incidence surface 104: exiting surface
106: reflecting surface 108: light guide structure
110: dip plane 112: width
114: upper bottom surface 116: bottom surface
118: groove 120: microstructure
122: light source 124: circuit board
126: light supply apparatus 128: surface
130: light source module θ: pitch angle
Embodiment
Please with reference to Fig. 1, it is the stereographic map that illustrates according to a kind of LGP of the embodiment of the utility model.In this embodiment, LGP 100a comprises incidence surface 102, exiting surface 104, reflecting surface 106 and several light guide structures 108.In one embodiment, exiting surface 104 is the upper surface of LGP 100a, and 106 of reflectings surface are the bottom surface of LGP 100a, so exiting surface 104 is positioned at relative two sides of LGP 100a with reflecting surface 106 and faces mutually.In addition, incidence surface 102 is between exiting surface 104 and reflecting surface 106, and relative two sides of incidence surface 102 engage with exiting surface 104 and reflecting surface 106 respectively.
In an example, LGP 100a can be a slab construction, wherein incidence surface 102 respectively vertical exiting surfaces 104 and reflecting surface 106.In another example, LGP 100a can be a wedge type plate structure, and wherein incidence surface 102 is not vertical with reflecting surface 106.
In LGP 100a, light guide structure 108 is arranged on the incidence surface 102.In this embodiment, light guide structure 108 can be identical but the structure that size various structure or shape are inequality of shape structure, the shape all identical with size.In one embodiment, the shape of light guide structure 108 is identical with the equal essence of size.In this embodiment, as shown in Figure 1, the width 112 of light guide structure 108 is so that the direction towards incidence surface 102 increases gradually from the outside of LGP 100a.In an example, each light guide structure 108 can be trapezium structure, and is as shown in Figure 1.In another example, each light guide structure 108 can be triangular structure.In this embodiment, light guide structure 108 preferable systems adopt trapezium structure, and LGP 100a is preferably integrated formed structure.
In the light guide structure 108 of LGP 100a, two adjacent light guide structures 108 can an apart segment distance setting, and setting also can be closely adjacent to each other.When adjacent light guide structure 108 apart segment distances were provided with, wantonly two adjacent light guide structures 108 define groove 118 jointly with incidence surface 102, and were as shown in Figure 1.At this moment, groove 118 is a trapezoidal groove.On the other hand, when adjacent light guide structure 108 is closely adjacent to each other when being provided with, wantonly two adjacent light guide structures 108 define groove 118 jointly.At this moment, groove 118 is a triangular groove.
In a preferred embodiment, as shown in Figure 1, two adjacent light guide structures 108 are apart segment distance settings, and two adjacent light guide structures 108 define groove 118 jointly with incidence surface 102, and groove 118 is a trapezoidal groove.
In one embodiment; On reflecting surface 106 zones of the incidence surface 102 that is close to LGP 100a; Several reflection sites (not illustrating) more can be set; Be adjacent to the illuminance distribution degree in incidence surface 102 zone with further lifting LGP 100a, improve the visual appearance of the applied light source module of LGP 100a whereby.Usually, the reflection site can be set on the reflecting surface 106 in the lower zone of the brightness of LGP 100a.In some instances, the reflection site can be set on LGP 100a entire emission face 106, but the higher or larger-size reflection of density site be set in the brightness lower region of LGP 100a.In other examples, can be according to the Luminance Distribution of LGP 100a, and only the reflection site is set at the regional area of the reflecting surface 106 of LGP 100a.
The utility model more can be to the demand of light source module, and on the incidence surface of LGP the extra optical texture that is provided with.Please with reference to Fig. 2, it is the top view that illustrates according to a kind of light source module of another embodiment of the utility model.In this embodiment, the structure of the LGP 100b structure with the LGP 100a of above-mentioned embodiment haply is identical, and the difference between two LGP 100a and the 100b is that LGP 100b more comprises several microstructures 120.
In LGP 100b, microstructure 120 is provided with on the incidence surface 102 in the groove 118 between the adjacent light guide structure 108 of two-phase in office.As shown in Figure 2, in each groove 118 one or more microstructure 120 can be set.In one embodiment, the shape of microstructure 120 can for example be a triangle.See through the setting of these microstructures 120, can make the Luminance Distribution of incidence surface 102 adjacent domains of LGP 100b more even.
The LGP 100a and the 100b of above-mentioned embodiment all can be applicable in the light source module.Followingly be illustrated with LGP 100b should be used in light source module 130.Please once more with reference to Fig. 2, light source module 130 mainly comprises LGP 100b and light supply apparatus 126.Light supply apparatus 126 mainly comprises several light sources 122.In some instances, light source 122 can for example be sent out the part assembly for semiconductors such as light emitting diode, laser diode.In one embodiment, except several light sources 122, light supply apparatus 126 also can further comprise circuit board 124.These light sources 122 are arranged on the surface 128 of circuit board 124, and these light sources 122 can see through welding manner and circuit board 124 electrically connects.
Light supply apparatus 126 is arranged on a side of the incidence surface 102 of LGP 100b, and light source 122 is separately positioned in the groove 118 between adjacent two light guide structures 108.At this moment, light source 122 can contact with light guide structure 108, but light source 122 is preferably and does not touch light guide structure 108.In one embodiment, the surface 128 of the circuit board 124 of light supply apparatus 126 is to contact with the light guide structure 108 of LGP 100b, in order to the location of light supply apparatus 126.As shown in Figure 2, the surface 128 of circuit board 124 is to engage with the upper bottom surface 114 of each light guide structure 108.In further embodiments, the light guide structure 108 of LGP 100b also can not contact with the surface 128 of circuit board 124.
In light source module 130; Since the light source 122 of light supply apparatus 126 be arranged on groove 118 that adjacent light guide structure 108 is enclosed to form in; Add light guide structure 108 and have dip plane 110, so the wide-angle emergent light that sent towards LGP 100b of light source 122 can reduce for the angle of the incident angle of the dip plane 110 of light guide structure 108.Thus; When wide-angle emergent light directive light guide structure 108 that light source 122 is sent; To import this wide-angle emergent light less for the incident angle of light guide structure 108 because of the existence of dip plane 110; Therefore can avoid incident light to produce total reflection, and make incident light can get into light guide structure 108, and get into smoothly among the LGP 100b via the refraction of light guide structure 108.So,, can significantly increase the utilization rate of the wide-angle emergent light of light source 122 through 108 designs of such light guide structure.Therefore, can under the usage quantity that does not increase light source 122, effectively promote the brightness of light source module 130.
In addition, after the refraction of the light guide structure 108 of process LGP 100b, except the briliancy that can increase light source module 130, effective utilization of the wide-angle emergent light of light source 122 also can improve light source module 130 near light source 122 places brightness light and shade problem of uneven distribution.
Embodiment by above-mentioned the utility model can be known; One advantage of the utility model is exactly because through have the light guide structure of dip plane in the incidence surface setting of LGP; Can significantly improve the utilization rate of the wide-angle emergent light of light source; Therefore can reduce the loss of light source bright dipping, effectively promote the utilization ratio of light source.
Embodiment by above-mentioned the utility model can know that another advantage of the utility model is that the utility model can effectively promote the briliancy of light source module under the situation of the usage quantity that does not increase light source.
Embodiment by above-mentioned the utility model can be known; The another advantage of the utility model is exactly because the design of the LGP of the utility model can significantly improve the utilization rate of the wide-angle emergent light of light source, therefore can effectively improve light source module in the uneven problem of contiguous light source place's brightness light and shade.
Though the utility model discloses as above with embodiment; Right its is not in order to limit the utility model; Any those having an ordinary knowledge in this technical field; In spirit that does not break away from the utility model and scope, when can doing various changes and retouching, so the protection domain of the utility model is as the criterion when looking the scope that appending claims defines.
Claims (10)
1. a LGP is characterized in that, comprises:
One incidence surface;
One exiting surface;
One reflecting surface, wherein this exiting surface is relative with this reflecting surface, and relative two sides of this incidence surface engage with this exiting surface and this reflecting surface respectively; And
A plurality of light guide structures are arranged on this incidence surface, and wherein a width of each those light guide structure is cumulative with the direction towards this incidence surface, and appoint adjacent the two and this incidence surface of those light guide structures define a groove to be installed with a light source.
2. LGP according to claim 1 is characterized in that, each those light guide structure is trapezium structures.
3. LGP according to claim 2 is characterized in that, also comprises a plurality of microstructures, is arranged on this incidence surface in those grooves.
4. LGP according to claim 1 is characterized in that, each those light guide structure comprises two relative dip plane, and a pitch angle of each those dip plane is spent more than or equal to 1, and less than 90 degree.
5. LGP according to claim 4 is characterized in that, this pitch angle of each those dip plane equals 58 degree.
6. a light source module is characterized in that, comprises:
One LGP comprises:
One incidence surface;
One exiting surface;
One reflecting surface, wherein this exiting surface is relative with this reflecting surface, and relative two sides of this incidence surface engage with this exiting surface and this reflecting surface respectively; And
A plurality of light guide structures are arranged on this incidence surface, and wherein a width of each those light guide structure is cumulative with the direction towards this incidence surface, and appoint adjacent the two and this incidence surface of those light guide structures define a groove; And
One light supply apparatus comprises a plurality of light sources, and wherein those light sources are separately positioned in those grooves.
7. light source module according to claim 6 is characterized in that, each those light guide structure is trapezium structures.
8. light source module according to claim 6 is characterized in that, this LGP also comprises a plurality of microstructures and is arranged on this incidence surface in those grooves.
9. light source module according to claim 7 is characterized in that this light supply apparatus also comprises a circuit board, and those light sources are arranged at a surface of this circuit board and go up and electrically connect with this circuit board, and wherein this surface of this circuit board engages with those light guide structures.
10. light source module according to claim 6 is characterized in that, each those light guide structure comprises two relative dip plane, and a pitch angle of each those dip plane is spent more than or equal to 1, and less than 90 degree.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW100130520A TWI453477B (en) | 2011-08-25 | 2011-08-25 | Light guide plate and light source module |
| TW100130520 | 2011-08-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202305872U true CN202305872U (en) | 2012-07-04 |
Family
ID=46374741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203809255U Expired - Lifetime CN202305872U (en) | 2011-08-25 | 2011-09-29 | Light guide plate and light source module |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN202305872U (en) |
| TW (1) | TWI453477B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105572786A (en) * | 2014-08-18 | 2016-05-11 | 株式会社新谱 | Light guide plate and backlight unit including the same |
| CN108873149A (en) * | 2018-07-09 | 2018-11-23 | 京东方科技集团股份有限公司 | A kind of light guide plate, backlight module and display device |
| CN112578572A (en) * | 2020-12-09 | 2021-03-30 | 西安炬光科技股份有限公司 | Optical element and optical module |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI499815B (en) * | 2013-10-22 | 2015-09-11 | Univ Nat Chiao Tung | Back-light module |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200801703A (en) * | 2006-06-02 | 2008-01-01 | Hon Hai Prec Ind Co Ltd | Light guide plate and backlight module |
-
2011
- 2011-08-25 TW TW100130520A patent/TWI453477B/en not_active IP Right Cessation
- 2011-09-29 CN CN2011203809255U patent/CN202305872U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105572786A (en) * | 2014-08-18 | 2016-05-11 | 株式会社新谱 | Light guide plate and backlight unit including the same |
| CN105572786B (en) * | 2014-08-18 | 2019-01-15 | 株式会社新谱 | A kind of light guide plate and the backlight module including the light guide plate |
| CN108873149A (en) * | 2018-07-09 | 2018-11-23 | 京东方科技集团股份有限公司 | A kind of light guide plate, backlight module and display device |
| US20200012032A1 (en) * | 2018-07-09 | 2020-01-09 | Hefei Xinsheng Optoelectronics Technology Co., Ltd. | Light guide plate, backlight module and display device |
| US10795069B2 (en) | 2018-07-09 | 2020-10-06 | Hefei Xinsheng Optoelectronics Technology Co., Ltd. | Light guide plate used for a backlight module of an LCD |
| CN112578572A (en) * | 2020-12-09 | 2021-03-30 | 西安炬光科技股份有限公司 | Optical element and optical module |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI453477B (en) | 2014-09-21 |
| TW201310092A (en) | 2013-03-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: RADIANT OPTO-ELECTRONICS (NANJING) CO., LTD. Assignor: Radiant Opto-electronics Corporation Contract record no.: 2012990000865 Denomination of utility model: Light guiding plate and light source module Granted publication date: 20120704 License type: Exclusive License Record date: 20121203 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120704 |
|
| CX01 | Expiry of patent term |