CN204666857U - A kind of lightweight light guide plate - Google Patents
A kind of lightweight light guide plate Download PDFInfo
- Publication number
- CN204666857U CN204666857U CN201520292490.7U CN201520292490U CN204666857U CN 204666857 U CN204666857 U CN 204666857U CN 201520292490 U CN201520292490 U CN 201520292490U CN 204666857 U CN204666857 U CN 204666857U
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- CN
- China
- Prior art keywords
- guide plate
- light guide
- light
- hole
- main body
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Abstract
The utility model discloses a kind of lightweight light guide plate, comprise light guide plate main body, be located at the incidence surface of light guide plate, back to the bottom surface arranged and exiting surface, this incidence surface is convexly equipped with the light entrance structures thereof of dentation, in this light guide plate main body, there is multiple reflective particle, this reflective particle has shell and is positioned at the core of shell, and light guide plate main body inside has multiple through hole, each through hole has at least one end to run through bottom surface or exiting surface, after the light that light source sends enters light guide plate, light can be reflected by the plurality of through hole and reflect to exiting surface, the light loss that the oversize and multiple reflections of light path causes can be avoided, thus the light utilization efficiency of light guide plate can be improved, in addition, light guide plate inside arranges multiple through hole, the weight of light guide plate can also be alleviated, more meet the more and more light-weighted development trend of leaded light component.
Description
Technical field
The utility model relates to backlight module art, refers in particular to a kind of lightweight light guide plate being applied to backlight module.
Background technology
Because the liquid crystal in panel of LCD itself does not possess the characteristics of luminescence, thus, for reaching display effect, a planar light source device must be provided to panel of LCD, as backlight module, its function is to panel of LCD supply brightness fully and the area source be evenly distributed.
Prior art backlight module is made up of light source, reflecting plate, light guide plate, diffuser plate and layers of prisms etc., and wherein light guide plate is the key component in backlight module, its role is to guide incident light to convert area source to through light guide plate scattering and reflection.
Existing backlight module comprises a light source, a light guide plate, a reflecting plate and a diffuser plate.This light guide plate comprises an incidence surface, an exiting surface adjacent with this incidence surface, and a bottom surface relative with this exiting surface.This light source this incidence surface contiguous is arranged, and this reflecting plate this bottom surface contiguous is arranged, and this diffuser plate this exiting surface contiguous is arranged.This bottom surface is provided with equally distributed multiple circular propagation point.This diffusion point usable reflection and diffusion can be incident upon light on it, thus improves light utilization efficiency and the outgoing light homogeneity of this light guide plate and this backlight module.
But the light that this light source sends is after incidence surface enters light guide plate, and some light need pass in the middle of light guide plate, and light path is longer, and through multiple reflections, need can cause light loss, thus causes the light utilization efficiency of this light guide plate to reduce.
Utility model content
In view of this, the utility model is for the disappearance of prior art existence, and its fundamental purpose is to provide a kind of lightweight light guide plate, has higher light utilization efficiency.
For achieving the above object, the utility model adopts following technical scheme:
A kind of lightweight light guide plate, comprise light guide plate main body, be located at the incidence surface of light guide plate, back to the bottom surface arranged and exiting surface, this incidence surface is convexly equipped with the light entrance structures thereof of dentation, in this light guide plate main body, there is multiple reflective particle, this reflective particle has shell and is positioned at the core of shell, and light guide plate main body inside has multiple through hole, each through hole has at least one end to run through bottom surface or exiting surface.
As a kind of preferred version, the inwall of described multiple through hole is laciniation, and the tooth pitch of the sawtooth in different through hole is unequal.
As a kind of preferred version, described multiple through hole one end and bottom surface through, the other end is then distributed on the diagonal line of this light guide plate.
As a kind of preferred version, described multiple through hole one end and exiting surface through, the other end is then distributed on the diagonal line of this light guide plate.
As a kind of preferred version, described multiple through hole one end and exiting surface through, the other end and bottom surface through.
As a kind of preferred version, described multiple through hole is inclined on light guide plate main body, and the angle of through hole and bottom surface is the size of θ, θ is 0< θ <180 °.
The utility model compared with prior art has obvious advantage and beneficial effect, specifically, as shown from the above technical solution, by the design of through hole multiple in light guide plate, can provide multiple reflection and plane of refraction for incident ray.After the light that light source sends enters light guide plate, light can be reflected by the plurality of through hole and reflect to exiting surface, can avoid the light loss that the oversize and multiple reflections of light path causes, thus can improve the light utilization efficiency of light guide plate.In addition, light guide plate inside arranges multiple through hole, can also alleviate the weight of light guide plate, more meets the more and more light-weighted development trend of leaded light component.
For more clearly setting forth architectural feature of the present utility model and effect, below in conjunction with accompanying drawing and specific embodiment, the utility model is described in detail.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of the light guide plate of the embodiment of the utility model;
Fig. 2 is the enlarged drawing at A place in Fig. 1;
Fig. 3 is the enlarged drawing at B place in Fig. 1;
Fig. 4 is the enlarged drawing at C place in Fig. 1;
Fig. 5 is the cut-open view of the light guide plate of the first embodiment of the utility model;
Fig. 6 is the cut-open view of the light guide plate of the second embodiment of the utility model;
Fig. 7 is the cut-open view of the light guide plate of the third embodiment of the utility model;
Fig. 8 is the enlarged drawing at D place in Fig. 5.
Accompanying drawing identifier declaration:
10, light guide plate main body 11, reflective particle
12, core 13, shell
14, through hole 15, laciniation
20, incidence surface 21, light entrance structures thereof
22, canine tooth 23, little tooth
30, bottom surface 40, exiting surface.
Embodiment
Please refer to shown in Fig. 1 to Fig. 8, that show the concrete structure of the preferred embodiment of the utility model, is a kind of lightweight light guide plate, and its structure comprises light guide plate main body 10, is located at the incidence surface 20 of light guide plate, back to the bottom surface 30 arranged and exiting surface 40.
Wherein, this incidence surface 20 is convexly equipped with the light entrance structures thereof 21 of dentation, the tooth 22,23 of light entrance structures thereof 21 has different size, two kinds of teeth 22,23 are alternately arranged on incidence surface 20 in long axis direction mode parallel to each other, and the outline view field of each illuminating source on incidence surface 20 is at least contained in its distributed areas.In the tooth of light entrance structures thereof 21, canine tooth 22 and the area ratio of little tooth 23 preferably define >=1.5 and≤35.By the dentation light entrance structures thereof 21 of this employing two kinds of different sizes, the travel path after incident light deviation can be changed and promote diffusion effect, because light entrance structures thereof 21 can provide good light diffusion effect, pointolite can be maintained good brightness distribution uniformity, the effect of effective output optical zone area in acquisition expansion light guide plate to the Distance Shortened of effective output optical zone.
Have multiple reflective particle 11 in this light guide plate main body 10, the mean grain size of each reflective particle 11 is about 3 ~ 5 μm, and each reflective particle 11 has core 12 and a shell 13 respectively, and core 12 is by SiO
2make, shell 13 is by by Al
2o
3made by, shell 13 average thickness is about 1.5 ~ 2.5 μm, and the weight of each reflective particle 11 is about 1% of light guide plate weight.
Because light guide plate inside of the present invention has multiple reflective particle 11, when light is entered by light guide plate side or bottom surface 30, light is reflected towards all directions by these reflective particles 11, and form a uniform area source at the exiting surface of light guide plate, light guide plate is made to have the function of diffusing light concurrently, if light source is located at light guide plate side, then a reflecting plate can be established in light guide plate bottom side, spills by bottom light guide plate for avoiding light.Moreover, because the particle diameter of these reflective particles 11 is minimum, affect the transmittance of light guide plate hardly, do not see the difference with pure PMMA plate completely by naked eyes.Thus, light guide plate of the present invention can replace the combination of conventional light guiding plate and diffuser plate, reduces the light loss between conventional light guiding plate and diffuser plate, and improves briliancy and uniformity coefficient.
And light guide plate main body 10 inside has multiple through hole 14, each through hole 14 has at least one end to run through bottom surface 30 or exiting surface 40.As shown in Figures 2 to 4, the inwall of described multiple through hole 14 is laciniation 15, and the tooth pitch of the sawtooth in different through hole 14 is unequal, and different tooth pitch makes light reflecting effect different.Wherein a kind of mode of through hole 14 as shown in Figure 5, described multiple through hole 14 one end and exiting surface 40 through, the other end and bottom surface 30 through.The another kind of mode of through hole 14 as shown in Figure 6, described multiple through hole 14 one end and bottom surface 30 through, the other end is then distributed on the diagonal line of this light guide plate.The third mode of through hole 14 as shown in Figure 7, described multiple through hole 14 one end and exiting surface 40 through, the other end is then distributed on the diagonal line of this light guide plate.In addition, described multiple through hole 14 is inclined on light guide plate main body 10, and the size that through hole 14 is θ, θ with the angle of bottom surface 30 is 0< θ <180 °.
In sum, design focal point of the present utility model is, the design of this kind multiple through hole 14 in light guide plate, can provide multiple reflection and plane of refraction for incident ray.After the light that light source sends enters light guide plate, light can be reflected by the plurality of through hole 14 and reflect to exiting surface 40, can avoid the light loss that the oversize and multiple reflections of light path causes, thus can improve the light utilization efficiency of light guide plate.In addition, light guide plate inside arranges multiple through hole 14, can also alleviate the weight of light guide plate, more meets the more and more light-weighted development trend of leaded light component.
The above, it is only preferred embodiment of the present utility model, not technical scope of the present utility model is imposed any restrictions, therefore every above embodiment is done according to technical spirit of the present utility model any trickle amendment, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (6)
1. a lightweight light guide plate, comprise light guide plate main body, be located at the incidence surface of light guide plate, back to the bottom surface arranged and exiting surface, it is characterized in that: the light entrance structures thereof this incidence surface being convexly equipped with dentation, in this light guide plate main body, there is multiple reflective particle, this reflective particle has shell and is positioned at the core of shell, and light guide plate main body inside has multiple through hole, each through hole has at least one end to run through bottom surface or exiting surface.
2. a kind of lightweight light guide plate according to claim 1, is characterized in that: the inwall of described multiple through hole is laciniation, and the tooth pitch of the sawtooth in different through hole is unequal.
3. a kind of lightweight light guide plate according to claim 1, is characterized in that: described multiple through hole one end and bottom surface through, the other end is then distributed on the diagonal line of this light guide plate.
4. a kind of lightweight light guide plate according to claim 1, is characterized in that: described multiple through hole one end and exiting surface through, the other end is then distributed on the diagonal line of this light guide plate.
5. a kind of lightweight light guide plate according to claim 1, is characterized in that: described multiple through hole one end and exiting surface through, the other end and bottom surface through.
6. a kind of lightweight light guide plate according to claim 1, is characterized in that: described multiple through hole is inclined on light guide plate main body, and the angle of through hole and bottom surface is the size of θ, θ is 0< θ <180 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520292490.7U CN204666857U (en) | 2015-05-08 | 2015-05-08 | A kind of lightweight light guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520292490.7U CN204666857U (en) | 2015-05-08 | 2015-05-08 | A kind of lightweight light guide plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204666857U true CN204666857U (en) | 2015-09-23 |
Family
ID=54137226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520292490.7U Expired - Fee Related CN204666857U (en) | 2015-05-08 | 2015-05-08 | A kind of lightweight light guide plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204666857U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107703580A (en) * | 2017-09-28 | 2018-02-16 | 上海斐讯数据通信技术有限公司 | A kind of annular light guide plate |
| CN108594355A (en) * | 2018-04-28 | 2018-09-28 | 京东方科技集团股份有限公司 | Light guide plate, light source assembly, display panel and display device |
-
2015
- 2015-05-08 CN CN201520292490.7U patent/CN204666857U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107703580A (en) * | 2017-09-28 | 2018-02-16 | 上海斐讯数据通信技术有限公司 | A kind of annular light guide plate |
| CN108594355A (en) * | 2018-04-28 | 2018-09-28 | 京东方科技集团股份有限公司 | Light guide plate, light source assembly, display panel and display device |
| CN108594355B (en) * | 2018-04-28 | 2021-01-22 | 京东方科技集团股份有限公司 | Light guide plate, light source assembly, display panel and display device |
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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: 20150923 Termination date: 20190508 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |