CN206421052U - Diffuser plate - Google Patents
Diffuser plate Download PDFInfo
- Publication number
- CN206421052U CN206421052U CN201720098734.7U CN201720098734U CN206421052U CN 206421052 U CN206421052 U CN 206421052U CN 201720098734 U CN201720098734 U CN 201720098734U CN 206421052 U CN206421052 U CN 206421052U
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- Prior art keywords
- light
- scattering
- dipped beam
- scattering object
- guide plate
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- Planar Illumination Modules (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
A kind of diffuser plate, for being scattered to the light that light guide plate is sent, including bottom surface is attached to the substrate in light guide plate surface.The light guide plate side is dipped beam end, and opposite side is to be provided with that the light source of light can be injected into light guide plate on distance light end, the dipped beam end.The scattering object that light can be scattered is provided with the top surface of the substrate, the volume of the scattering object gradually increases along dipped beam end to distance light end.Scatter plate sets scattering object, enhance its scattering property, and scattering object volume gradually increases along dipped beam end to distance light end, make the scattering object away from light source compared to the scattering object close to light source, with stronger scattering power, the dipped beam end scattering for making light intensity stronger is less, and the weaker distance light end scattering of light intensity is stronger, make the effect of the brightness uniformity of whole backlight module, enhancing illumination or display.
Description
Technical field
The utility model belongs to illumination optical field, more particularly to a kind of heat-resisting and high uniformity diffuser plate.
Background technology
Diffuser plate is usually used in area source and liquid crystal display backlight module, is the critical piece in illumination optical product.Diffuser plate
With light guide plate with area source or backlight module is combined into, the scattering that light guide plate is sent increases brightness.The principle of diffuser plate is profit
Occur refraction, diffusing scattering phenomenon when two different media of refractive index are run into conductive process with light.Usual diffuser plate table
Face can do frosted processing, surface is had irregular raised or groove, the surface with certain roughness can strengthen light
Scattering.
Because light can produce light loss in conductive process, therefore area source or backlight module can show at light source
Obtain brighter, and seem dark at remote light source.To improve uniform light degree, typically quantity of light source can be increased at light extraction end, still
Such a method can cause cost increase, and at light source, due to the heat that light source is produced, diffuser plate understands dilatancy,
Its colour changed into yellow.
Utility model content
The utility model needs to increase carrying for quantity of light source progress uniform light degree for current area source or backlight module
Height, the problems such as easy temperature distortion of diffuser plate changes colour proposes that one kind is heat-resisting, and the higher diffuser plate of uniform light degree.
In order to achieve the above object, the technical solution adopted in the utility model is：
A kind of diffuser plate, for being scattered to the light that light guide plate is sent, including bottom surface is attached in light guide plate surface
Substrate.
The light guide plate side is dipped beam end, and opposite side is distance light end, and being provided with the dipped beam end can be to light guide plate
The interior light source for injecting light.
It is provided with the scattering object that light can be scattered on the top surface of the substrate, the volume of the scattering object is along dipped beam end
Gradually increase to distance light end.
Preferably, the scattering object is the projection or groove of arc, it is arranged at intervals multiple.
Preferably, the half of the scattering object width is more than its height.
Preferably, being located at the substrate and light source interval setting of the same side with dipped beam end.
Preferably, the substrate edges for being located at the same side with dipped beam end are provided with multiple radiating grooves.
Preferably, the radiating groove is arranged at intervals, it is V-arrangement or trapezoidal.
Compared with prior art, advantage of the present utility model and good effect are：
1st, scatter plate sets scattering object, enhances its scattering property, and scattering object volume along dipped beam end to distance light end by
It is cumulative big, make the scattering object away from light source compared to the scattering object close to light source, with stronger scattering power, make light intensity stronger
The scattering of dipped beam end it is less, the weaker distance light end scattering of light intensity is stronger, makes the brightness uniformity of whole backlight module, enhancing illumination or
The effect of display.
2nd, scattering object is arranged at intervals, and can reduce the density of its distribution, is reduced scattering object and is set bright and clean to diffuser surface
The influence of degree, makes diffuser surface keep attractive in appearance.The thickness of scattering object is smaller, can provide preferable scattering property.
3rd, substrate and light source are arranged at intervals, and are made substrate away from the larger light source that generates heat, are prevented its temperature distortion or discoloration, and
And interval between the two can form heat dissipation channel, the heat that light source is produced is shed rapidly, not only reduce heating
To the image of diffuser plate, and the temperature of light source is also reduced, improve its service life.
4th, substrate sets radiating groove, is vertically foring more heat conduction spaces, is improving heat dispersion.Radiating groove is uniformly set
Put, each several part heat is shed respectively, improve radiating efficiency.V-arrangement or trapezoidal radiating groove can be formed gradually to be become from inside to outside
Wide structure, improves the efficiency of heat transfer.
Brief description of the drawings
Fig. 1 is the structural representation one of the utility model diffuser plate；
Fig. 2 is the structural representation two of the utility model diffuser plate；
Fig. 3 is the structural representation three of the utility model diffuser plate；
Fig. 4 is the structural representation four of the utility model diffuser plate；
Above in each figure：Light guide plate 1；Dipped beam end 1-1；Distance light end 1-2；Substrate 2；Scattering object 2-1；Radiating groove 2-2；Light source
3。
Embodiment
Below, the utility model is specifically described by exemplary embodiment.It should be appreciated, however, that not having
In the case of being further discussed below, element, structure and features in an embodiment can also be advantageously incorporated into other implementations
In mode.
, it is necessary to illustrate in description of the present utility model, diffuser plate is by the length direction at dipped beam end to distance light end
Laterally, the orientation or position relationship of the instruction such as term " interior ", " outer ", " on ", " under ", "front", "rear" is based on shown in the drawings
Position relationship, is for only for ease of description the utility model and simplifies description, rather than indicate or imply the device or member of meaning
Part must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.
In addition, term " first ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicating or implying relative importance.
As shown in Figures 1 to 4, diffuser plate, for being scattered to the light that light guide plate 1 is sent, including bottom surface is attached to and led
Substrate 2 on the surface of tabula rasa 1.
The side of light guide plate 1 is dipped beam end 1-1, and opposite side is distance light end 1-2, and being provided with the 1-1 of dipped beam end can be to leaded light
The light source 3 of light is injected in plate 1.
The light that light source 3 is sent, takes in into light guide plate 1 from dipped beam end 1-1, and is penetrated in light guide plate 1 by dipped beam end 1-1
To distance light end 1-2.Light in light guide plate 1, runs into the luminous point of the bottom surface of light guide plate 1 setting, and luminous point scatters light, makes light
Projected, taken in from the bottom surface of diffuser plate into diffuser plate by the top surface of light guide plate 1.Because the material of diffuser plate and light guide plate is refraction
The different medium of rate, occurs refraction, diffusing scattering phenomenon, increases the brightness of light guide plate.
It is provided with the scattering object 2-1 that light can be scattered on the top surface of substrate 2, scattering object 2-1 volume is along dipped beam end
1-1 gradually increases to distance light end 1-2.
Scattering object 2-1 adds the heat-sinking capability of diffuser plate, improves brightness.Scattering object 2-1 volumes gradually increase, scattering effect
Fruit also strengthens therewith, due to the light that light source 3 is injected in light guide plate 1, during being conducted from dipped beam end 1-1 to distance light end 1-2
Light loss can be produced, the stronger scattering object 2-1 of the larger dispersion effect of volume is close to the weaker distance light end 1-2 of light intensity, small volume
If dispersion effect compared with scattering object 2-1 close to the stronger dipped beam end 1-1 of light intensity, make scattering object to the enhancing degree and light intensity of brightness
Strength coordination so that higher by the uniform light degree of diffuser plate.
In order to avoid scattering object 2-1 influences the flatness of diffuser plate, while ensureing excellent scattering property, scattering object 2-1
For the projection or groove of arc, it is arranged at intervals multiple.
The distribution density for reducing scattering object 2-1 is arranged at intervals, reduces scattering object and sets to diffuser surface finish
Influence, makes diffuser surface keep attractive in appearance.
To ensure scattering object 2-1 scattering property, the half of scattering object 2-1 width is more than its height, makes it more flat,
Thickness is relatively small, scattering object is provided preferable scattering property.
In order to avoid heat loss diffuser plate, it is arranged at intervals with the dipped beam end 1-1 substrates 2 for being located at the same side with light source 3.
Diffuser plate substrate 2 is separated with light source 3, and forms the first longitudinal heat dissipation channel therebetween, light source is sent out
The heat gone out is shed by the first heat dissipation channel, reduces temperature, it is to avoid the heat that light source 3 is produced makes diffuser plate substrate 2 become deformation
Color.
For further heat radiation performance, the 1-1 edges of substrate 2 for being located at the same side in dipped beam end are provided with multiple radiatings
Groove 2-2.Radiating groove 2-2 is vertically forming the second heat dissipation channel, and is spaced first formed between substrate 2 and light source 3
Heat dissipation channel is connected, and improves heat conduction efficiency, enhances heat dispersion.
And radiating groove 2-2 makes the edge indent of substrate 1, the area of substrate 1 close to light source is reduced, base is reduce further
The heating degree of plate 1, mitigates the heat affecting of substrate 1.
In order to further improve heat transference efficiency, radiating groove 2-2 is arranged at intervals, and is V-arrangement or trapezoidal.V-arrangement trapezoidal dissipates
Heat channel can form the structure gradually broadened from inside to outside, make the junction opening of the first heat dissipation channel and the second heat dissipation channel compared with
Width, makes heat transfer between two heat dissipation channels faster, so as to accelerate radiating rate.
Claims (6)
1. a kind of diffuser plate, for being scattered to the light that light guide plate (1) is sent, it is characterised in that be attached to including bottom surface
Substrate (2) on light guide plate (1) surface,
Light guide plate (1) side is dipped beam end (1-1), and opposite side is to be installed on distance light end (1-2), the dipped beam end (1-1)
There is the light source (3) that light can be injected into light guide plate (1),
The scattering object (2-1) that light can be scattered, the body of the scattering object (2-1) are provided with the top surface of the substrate (2)
Product gradually increases along dipped beam end (1-1) to distance light end (1-2).
2. diffuser plate according to claim 1, it is characterised in that the scattering object (2-1) is the projection or groove of arc,
It is arranged at intervals multiple.
3. diffuser plate according to claim 1 or 2, it is characterised in that the half of scattering object (2-1) width is more than it
Highly.
4. diffuser plate according to claim 1, it is characterised in that with dipped beam end (1-1) be located at the substrate (2) of the same side with
Light source (3) is arranged at intervals.
5. the diffuser plate according to claim 1 or 4, it is characterised in that be located at the substrate of the same side with dipped beam end (1-1)
(2) edge is provided with multiple radiating grooves (2-2).
6. diffuser plate according to claim 5, it is characterised in that the radiating groove (2-2) is arranged at intervals, and is V-arrangement or ladder
Shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720098734.7U CN206421052U (en) | 2017-01-26 | 2017-01-26 | Diffuser plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720098734.7U CN206421052U (en) | 2017-01-26 | 2017-01-26 | Diffuser plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206421052U true CN206421052U (en) | 2017-08-18 |
Family
ID=59569963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720098734.7U Active CN206421052U (en) | 2017-01-26 | 2017-01-26 | Diffuser plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206421052U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813721A (en) * | 2019-01-30 | 2019-05-28 | 广东利元亨智能装备股份有限公司 | Vision inspection apparatus and appearance detecting device |
| CN110164329A (en) * | 2019-03-31 | 2019-08-23 | 湖南凯星电子科技有限公司 | A kind of light diffusing sheet |
-
2017
- 2017-01-26 CN CN201720098734.7U patent/CN206421052U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813721A (en) * | 2019-01-30 | 2019-05-28 | 广东利元亨智能装备股份有限公司 | Vision inspection apparatus and appearance detecting device |
| CN110164329A (en) * | 2019-03-31 | 2019-08-23 | 湖南凯星电子科技有限公司 | A kind of light diffusing sheet |
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