CN201141959Y - light guide structure - Google Patents
light guide structure Download PDFInfo
- Publication number
- CN201141959Y CN201141959Y CNU2007201834311U CN200720183431U CN201141959Y CN 201141959 Y CN201141959 Y CN 201141959Y CN U2007201834311 U CNU2007201834311 U CN U2007201834311U CN 200720183431 U CN200720183431 U CN 200720183431U CN 201141959 Y CN201141959 Y CN 201141959Y
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- Prior art keywords
- light
- light guide
- guide plate
- emitting diode
- guide structure
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- Expired - Fee Related
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- 230000000694 effects Effects 0.000 abstract description 7
- 238000000149 argon plasma sintering Methods 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 description 19
- 238000010586 diagram Methods 0.000 description 9
- 230000011514 reflex Effects 0.000 description 5
- 230000002269 spontaneous effect Effects 0.000 description 5
- 238000007598 dipping method Methods 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 2
- 238000005282 brightening Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Light Guides In General And Applications Therefor (AREA)
Abstract
A light directing structure, comprising: a light guide plate and a light emitting diode set matched with the light guide plate. The light guide plate is provided with a light inlet side, a plurality of grooves are formed on the light inlet side, a light inlet interface is formed between every two grooves, the light emitting diode group corresponds to the light inlet side of the light guide plate, each light emitting diode of the light emitting diode group corresponds to each light inlet interface, the light inlet interfaces and the grooves are utilized to achieve the effect of uniform light scattering, light is scattered on the light inlet side of the light guide plate, therefore, the light spots are not caused to emit light, the light outlet surface of the light guide plate can uniformly emit light, and the light emitting brightness is improved.
Description
Technical field
The utility model relates to a kind of light guide structure, be meant a kind of light guide structure that reaches the even dispersion effect of light into optical interface and groove that sees through especially, with so that light comes in the light inlet side scattering of light guide plate, glorious degrees is promoted in evenly bright dipping of the exiting surface of this light guide plate simultaneously.
Background technology
Back lighting device (Backlight Device) is to comprise light guide module (Light-Guiding Module), diffusion sheet (Diffusion Sheet) and prismatic lens (Prism Sheet, or brightening piece Brightness EnhancementFilm) etc., light guide module wherein then comprises framework, light source (light source), light guide plate (light-guidingplate) and reflex housing.
Back lighting device is to provide back side light source to a certain product, for example LCD (LCD), negative film scanner, lantern slide, projector etc., be the biggest market with the backlight liquid crystal display device again wherein, quicker growth in recent years along with the flourish of LCD industry.
The principle of back lighting device is for to import spontaneous light source by a slice light guide plate, as fluorescent tube (CCFL) or light emitting diode (LED) etc., so as to producing bigger, more even and brighter exiting surface, by described reflex housing then can be with the light of spontaneous light source via reflection from the exiting surface ejaculation of light guide plate.Therefore, requiring the exiting surface bright dipping even, is to be one of the requirement of back lighting device.
See also Fig. 1 and shown in Figure 2, be known light guide structure, it comprises: a light guide plate 12a and this light-emitting diode group of light-emitting diode group 14a 14a have a circuit board 141a and are arranged at most light emitting diode 142a of circuit board 141a.This light guide plate 12a is that this light-emitting diode group 14a is located on the reflex housing, and light-emitting diode group 14a is corresponding to the light inlet side 120a of light guide plate 12a in the ccontaining reflex housing (figure does not show).Yet in the known light guide structure, 14a is luminous for this light-emitting diode group, makes light to inject from the light inlet side 120a of light guide plate 12a, and in after superrefraction and reflection, light is to penetrate from the exiting surface 121a of light guide plate 12a.
Yet, each light emitting diode 142a for spontaneous light source use, owing to be the bright especially fluorescence phenomenon of single-point to occur for point source of light, and the briliancy of each light emitting diode fluorescence that 142a produces is also to be higher than the briliancy that it is located, make the light inlet side 120a of this light guide plate 12a produce bright spots, cause exiting surface 121a to have the uneven shortcoming of bright dipping, must emitting uniform require to fail to agree with exiting surface.
Therefore, can improve, and according to the correlation experience of being engaged in for many years in this respect based on above-mentioned shortcoming, the concentrated observation and research, and cooperate the utilization of scientific principle, and propose a kind of reasonable in design and effectively improve the utility model of above-mentioned shortcoming.
Summary of the invention
The light guide structure that the utility model provides, by on light guide plate, forming most grooves and going into optical interface, each light emitting diode of light-emitting diode group emitted beam to see through each groove, go into optical interface, to reach the effect of light scatter and refraction, so as to eliminating the luminous bright spot phenomenon that light forms in luminous place.In addition, cooperate the different lines designs of light guide plate,, so, make light guide module to produce luminous effect of uniform in exiting surface so that the even scattering of light in light guide plate to be provided.
For addressing the above problem, the utility model is providing a kind of light guide structure, is to be used for a light guide module, and this light guide structure has a light guide plate cooperates this light guide plate with one light-emitting diode group, and this light-emitting diode group has most light emitting diodes, wherein:
This light guide plate has a light inlet side, and the light inlet side is to form most grooves, forms one between each groove and goes into optical interface, and light-emitting diode group is corresponding to the light inlet side of this light guide plate, and each light emitting diode is gone into optical interface corresponding to each.
Therefore, when each light emitting diode emitted beam, light can be gone into optical interface through this and be entered light guide plate, makes reflection ray to be scattered equably through each groove, so that the light inlet side emitting brightness of this light guide plate is even, promotes glorious degrees.
In order further to understand the utility model is to reach technology, means and the effect that predetermined purpose is taked, see also following about detailed description of the present utility model and accompanying drawing, believe the purpose of this utility model, feature and characteristics, go deep into and concrete understanding when getting one thus, yet appended accompanying drawing only provides reference and explanation usefulness, is not to be used for the utility model is limited.
Description of drawings
Fig. 1 is known light guide structure three-dimensional exploded view.
Fig. 2 is the synoptic diagram of known light guide structure when luminous.
Fig. 3 is the constitutional diagram of first embodiment of the utility model light guide structure.
Fig. 4 is the synoptic diagram of first implementation column of the utility model light guide structure.
Fig. 5 is the vertical view of first embodiment of the utility model light guide structure.
Fig. 6 is in the utility model light guide structure, the corresponding synoptic diagram that concerns between this light guide plate and light emitting diode.
Fig. 7 is in the utility model light guide structure, another corresponding relation synoptic diagram between this light guide plate and light emitting diode.
Fig. 8 is the synoptic diagram of second embodiment of the utility model light guide structure.
Fig. 9 is the synoptic diagram of the 3rd embodiment of the utility model light guide structure.
Symbol description
[known]
12a light guide plate 121a exiting surface
The 14a light-emitting diode group
[the utility model]
Light guide structure
1 light guide plate
10 light inlet sides
101 grooves 102 are gone into optical interface
12 first reflection sides
14 second reflection sides
16 exiting surfaces
18 reflectings surface
181 concave convex textures, 182 printing lines
183 engraving lines
2 light-emitting diode group
21 circuit boards, 22 light emitting diodes
A, A ' light-emitting area
Embodiment
In order further to understand feature of the present utility model and technology contents, see also following about detailed description of the present utility model and appended graphic.
See also Fig. 3 to shown in Figure 9, the synoptic diagram of the different embodiment of the utility model light guide structure, and the light guide plate corresponding relation figure different with light-emitting diode group.This light guide structure includes a light guide plate 1 and a light-emitting diode group 2, and this light-emitting diode group 2 is to cooperate with this light guide plate 1.In the present embodiment,, except light-emitting diode group 2, also can utilize fluorescent tube (figure does not show) as spontaneous light source in order to light is imported the spontaneous light source of light guide plate 1.
This light guide plate 1 can be placed in the reflex housing (figure do not show), and this light guide plate 1 has the reflecting surface 18 of a light inlet side 10, the second reflection side 14 that one first reflection side 12, two is relative, an exiting surface 16, opposite this exiting surface 16.Wherein, the light inlet side 10 of this light guide plate 1 is to have most grooves 101 and majority is gone into optical interface 102.Each goes into optical interface 102 is between each groove 101.In the utility model, the shape of each groove 101 can be various geometric configuratioies such as a semicircle, V font, square, arc, so as to reflection ray being made a dispersion effect, make the light inlet side 10 of this light guide plate 1 can be luminous evenly.
This light-emitting diode group 2 has a circuit board 21 and most light emitting diodes 22, and each light emitting diode 22 is located on this circuit board 21.
This light-emitting diode group 2 is the light inlet sides 10 corresponding to this light guide plate 1, in order to provide light to light guide plate 1.Each light emitting diode 22 is that each that correspond respectively to this light inlet side 10 is gone into optical interface 102, to emit beam and to enter light guide plate 1 via going into optical interface 102, when light after first and second reflection side 12,14 and reflecting surface 18 reflects, can send even light from this exiting surface 16.
When this light inlet side 10 of reflection ray reflected back of part, see through the geometric configuration of each groove 101, so that this reflection ray is carried out dispersion effect.So, except the uniformly light-emitting that can improve this light guide plate 1 integral body.Simultaneously, also effectively eliminate the light generation bright spot phenomenon of this light inlet side 10.
To shown in Figure 5, be first embodiment of this light guide plate 1 as Fig. 3.Except above-mentioned feature, the reflecting surface 18 of this light guide plate 1 is to be formed with most concave convex textures 181, and these concave convex textures 181 can be used for increasing the ray refraction rate in the light guide plate 1, intersperse among this light guide plate 1 equably so as to making light.Wherein these concave convex textures 181 are to be a regular shape or regularly arranged lines.
As Figure 6 and Figure 7, be the synoptic diagram of two kinds of different corresponding relations between this light guide plate 1 and these light emitting diodes 22.In Fig. 6, when each light emitting diode 22 of this light-emitting diode group 2 corresponding each when going into optical interface 102, each surface area of going into optical interface 102 is the light-emitting area A greater than each light emitting diode 22.In Fig. 7, each surface area of going into optical interface 102 is the light-emitting area A ' less than each light emitting diode 22, makes this go into the light that optical interface 102 can receive different light-emitting areas.No matter why are light-emitting area A, the A ' of these light emitting diodes 22, all can go into optical interface 102 light is imported this light guide plate 1 via this.
As shown in Figure 8, be second embodiment of this light guide plate 1.Except above-mentioned feature (groove 101 and go into optical interface 102), the reflecting surface 18 of this light guide plate 1 can form most printing lines 182, in order to increase light in the scattering of light guide plate 1, makes this exiting surface send even light.Wherein, each printing lines 182 can see through printing (printing) mode and form, visual conditions of demand of user and print out various difformities or the different printing lines of arranging 182.
As shown in Figure 9, be the 3rd embodiment of this light guide plate 1.Except above-mentioned feature (groove 101 and go into optical interface 102), the reflecting surface 18 of this light guide plate 1 also can form most engraving lines 183, these engraving lines 182 can be the lines of arbitrary shape or irregular alignment, to increase light, make this exiting surface send even light in the scattering of light guide plate 1.Wherein, each engraving lines 182 is to form through engraving (carving) mode.
In sum, see through in the utility model light guide structure, the groove 101 of this light guide plate 1, go into optical interface 102, and these are concavo-convex, characteristic Design of printing or engraving lines 181,182,183, so that these light emitting diode 22 emitted light can be scattered, reflect and come. and then make this light inlet side 10 bright spot can not occur now to look like.Simultaneously, can make the exiting surface 16 of this light guide plate 1 relatively send uniform light, promote its briliancy.To meet the requirement of light guide module even light when the bright dipping.
The above person; only be of the present utility model one preferable feasible embodiment; non-so promptly limit to interest field of the present utility model; the equivalence of using the utility model instructions and accompanying drawing content to be done such as changes; all reason is closed and is given Chen Ming with being contained in the claim protection domain of the present utility model.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201834311U CN201141959Y (en) | 2007-10-22 | 2007-10-22 | light guide structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201834311U CN201141959Y (en) | 2007-10-22 | 2007-10-22 | light guide structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201141959Y true CN201141959Y (en) | 2008-10-29 |
Family
ID=40069670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201834311U Expired - Fee Related CN201141959Y (en) | 2007-10-22 | 2007-10-22 | light guide structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201141959Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102914815A (en) * | 2012-10-30 | 2013-02-06 | 苏州达方电子有限公司 | Light guide plate structure |
| CN102937251A (en) * | 2012-12-03 | 2013-02-20 | 田茂福 | Novel LED (Light-Emitting Diode) panel lamp |
| CN101859515B (en) * | 2009-04-10 | 2013-07-31 | 鸿富锦精密工业（深圳）有限公司 | Display module and light-emitting marker having same |
-
2007
- 2007-10-22 CN CNU2007201834311U patent/CN201141959Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101859515B (en) * | 2009-04-10 | 2013-07-31 | 鸿富锦精密工业（深圳）有限公司 | Display module and light-emitting marker having same |
| CN102914815A (en) * | 2012-10-30 | 2013-02-06 | 苏州达方电子有限公司 | Light guide plate structure |
| CN102937251A (en) * | 2012-12-03 | 2013-02-20 | 田茂福 | Novel LED (Light-Emitting Diode) panel lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081029 Termination date: 20111022 |