CN208331857U - Light guide plate, backlight module and display device - Google Patents
Light guide plate, backlight module and display device Download PDFInfo
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- CN208331857U CN208331857U CN201820310769.7U CN201820310769U CN208331857U CN 208331857 U CN208331857 U CN 208331857U CN 201820310769 U CN201820310769 U CN 201820310769U CN 208331857 U CN208331857 U CN 208331857U
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- light
- guide plate
- incidence surface
- light guide
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Abstract
The utility model relates to light guide plate, backlight module and display devices.Light guide plate includes ontology, multiple strip structures and multiple light modulation structures.Ontology includes incidence surface and the optical surface connecting with incidence surface.Strip structure is arranged on optical surface, and each strip structure has end.Light modulation structure is arranged on the end of strip structure.Each light modulation structure includes the first light action face and the second light action face.First light action is facing towards incidence surface, the second light action side opposite with incidence surface facing towards ontology.First light action face is the different inclined-plane of inclined direction from the second light action face and forms asymmetric shape, and the first light action face has the first angle relative to optical surface, and the second light action face has the second angle relative to optical surface.First angle and the second angle are acute angle.First angle is different from the second angle.
Description
Technical field
The utility model relates to a kind of light-guide device and its applications, and in particular to light guide plate, backlight module and display dress
It sets.
Background technique
Light guide plate has incidence surface, light-emitting surface and reflecting surface.Light provided by light source from the incidence surface of light guide plate into
Enter in light guide plate, then is projected from the light-emitting surface of light guide plate.In order to enable the light inside by light guide plate more uniformly to mix,
Micro-structure would generally be set in the light-emitting surface or reflecting surface of light guide plate.
However, into light guide plate light in directive micro-structure, the light that can reflect or reflect due to general micro-structure
It measures limited, therefore other than it can not efficiently use light, is also easy to make light guide plate to produce the optical appearances problems such as light is uneven.
Therefore, a kind of light guide plate is needed, to solve the above problems.
Utility model content
Therefore, the purpose of this utility model is to provide a kind of light guide plates, and wherein the microstructure design of light guide plate can increase
The utilization efficiency of light, and then the outgoing light homogeneity and emitting brightness of whole backlight module and display device can be promoted.
Above-mentioned purpose according to the present utility model proposes a kind of light guide plate.This light guide plate includes ontology, multiple strip structures
And multiple light modulation structures.Ontology includes incidence surface and the optical surface connecting with incidence surface.Strip structure is arranged in optical surface
On, wherein each strip structure has end.Light modulation structure is arranged on the end of strip structure, wherein each light modulation knot
Structure includes the first light action face and the second light action face connecting with the first light action face.Wherein, the first light action facing towards
Incidence surface, the second light action side opposite with incidence surface facing towards ontology, the first light action face are to incline with the second light action face
The different inclined-plane of tilted direction and the asymmetric shape of formation, the first light action face have the first angle relative to optical surface, and the second light is made
There is the second angle relative to the optical surface with face.First angle and the second angle are acute angle.Wherein, the first angle is different from the
Two angles.
According to the embodiments of the present invention, each above-mentioned strip structure extends perpendicularly to prolonging for incidence surface
Stretch direction.
According to the embodiments of the present invention, above-mentioned ontology has the anti-incidence surface opposite with incidence surface.Each
One end of shape structure connects incidence surface, and the other end connects anti-incidence surface.
According to the embodiments of the present invention, the first above-mentioned angle is greater than the second angle.
According to the embodiments of the present invention, above-mentioned light modulation structure is continuously arranged along strip structure or discontinuously sets
It sets.
According to the embodiments of the present invention, the size of above-mentioned light modulation structure is as light modulation structure is at a distance from incidence surface
Increase and increase.
According to the embodiments of the present invention, the distance between above-mentioned light modulation structure is with light modulation structure and incidence surface
The increase of distance and reduce.
According to the embodiments of the present invention, each above-mentioned strip structure is arc structure or triangular structure.
According to the embodiments of the present invention, each above-mentioned strip structure is projective structure, each light modulation structure
For sunk structure.
According to the embodiments of the present invention, above-mentioned optical surface is light-emitting surface or reflecting surface.
Above-mentioned purpose according to the present utility model separately proposes a kind of backlight module.This backlight module includes leaded light above-mentioned
Plate and light source.Wherein, light source is adjacent to the incidence surface of light guide plate.
Above-mentioned purpose according to the present utility model separately proposes a kind of display device.This display device includes leaded light above-mentioned
Plate, light source and display panel.Wherein, light source is adjacent to the incidence surface of light guide plate.Display panel is arranged in front of light guide plate.
It can be seen from the above, the utility model mainly makes to adjust by the way that light modulation structure is arranged in the end of strip structure, and passes through
The light action face inclined degree difference of photo structure goes out light come the volume reflection or guidance light for increasing light, and then can promote making for light
With efficiency and outgoing light homogeneity.
Detailed description of the invention
In order to more completely understand embodiment and its advantage, following description is made referring now to attached drawing, in which:
Fig. 1 is the schematic device for showing the backlight module of the first embodiment according to the utility model；
Fig. 2 is the structural schematic diagram for showing the light guide plate of the first embodiment according to the utility model；
Fig. 3 is the structural schematic diagram for showing the light guide plate of the second embodiment according to the utility model；
Fig. 4 is the schematic device for showing the backlight module of the third embodiment according to the utility model；
Fig. 5 is the schematic device for showing the backlight module of the 4th embodiment according to the utility model；And
Fig. 6 is the schematic device for showing the display device according to the embodiments of the present invention.
Specific embodiment
Referring to Fig. 1 and Fig. 2, wherein Fig. 1 and Fig. 2 is the first embodiment being shown respectively according to the utility model
Backlight module schematic device and light guide plate structural schematic diagram.The backlight module 100 of present embodiment mainly includes
Light source 110 and light guide plate 120.Light guide plate 120 has ontology 121, multiple strip structures 122 and multiple light modulation structures 123.
Ontology 121 has incidence surface 121a and optical surface (such as reflecting surface 121b, light-emitting surface 121c and anti-incidence surface 121d).
Wherein, incidence surface 121a is opposite with anti-incidence surface 121d, and reflecting surface 121b and light-emitting surface 121c are separately connected incidence surface 121a
Opposite sides.Light source 110 is adjacent to the incidence surface 121a of light guide plate 120, to provide the light entered in light guide plate 120
Line.
Please continue to refer to Fig. 1 and Fig. 2, in the present embodiment, strip structure 122 is arranged on reflecting surface 121b, and strip
The extending direction for extending perpendicularly to incidence surface 121a of structure 122, and strip structure 122 is extended to from incidence surface 121a
Anti- incidence surface 121d.That is, one end of strip structure 122 connects incidence surface 121a, the other end connects anti-incidence surface 121d.
As shown in Figures 1 and 2, the end of each strip structure 122 is equipped with light modulation structure 123, wherein the present embodiment
Strip structure 122 is projective structure, so " end " that place refers to refers to the top of strip structure 122.In the present embodiment,
Light modulation structure 123 is sunk structure.Light modulation structure 123 includes the first light action face 123a and the second light action face 123b,
In the second light action face 123b connect with the first light action face 123a.Wherein, the first light action face 123a and the second light action face
123b is the different inclined-plane of inclined direction, and forms asymmetric shape.First light action face 123a is and opposite towards incidence surface 121a
It is tilted in incidence surface 121a, wherein the first light action face 123a has the first angle α 1 relative to reflecting surface 121b.Second light is made
It with face 123b towards anti-incidence surface 121d, and is tilted relative to incidence surface 121a, wherein the second light action face 123b is relative to anti-
Face 121b is penetrated with the second angle β 1.Wherein, the first angle α 1 and the second angle β 1 are acute angle.In some embodiments,
One angle α 1 is different from the second angle β 1.That is, light modulation structure 123 gets up from the side for asymmetric triangle (such as Fig. 1
It is shown).In the present embodiment, the first angle α 1 is greater than the second angle β 1.Whereby, most of light that light source 110 projects is from entering
Smooth surface 121a enters meeting the second light action of directive face 123b after light guide plate 120, and is reflected by the second light action face 123b.Also
It is to say, the second light action face 123b is direct light-receiving surface, and in structure design, the area of the second light action face 123b is greater than the
The area of one light action face 123a uses the volume reflection for increasing light, and then promotes the service efficiency of light.
It is noted that the strip structure of previous embodiment is arc-shaped structure, and light modulation structure is in along strip structure
The design being discontinuously arranged, only to explanation of demonstrating, not to limit the utility model.In other embodiments, light guide plate
Also there can be different form Designs.It referring to figure 3., is the light guide plate for showing the second embodiment according to the utility model
Structural schematic diagram.As shown in figure 3, the light guide plate 220 of present embodiment includes ontology 221, multiple strip structures 222 and multiple
Light modulation structure 223.Ontology 221 equally has incidence surface 221a, reflecting surface 221b, light-emitting surface 221c and anti-incidence surface 221d.
Please continue to refer to Fig. 3, strip structure 222 is arranged on reflecting surface 221b, and strip structure 222 is triangle knot
Structure.In the present embodiment, light modulation structure 223 is consecutively provided on strip structure 222.The light modulation structure 223 of the present embodiment
Design method is identical as the design method of aforementioned light modulation structure 123, and it includes the first light action face 223a and the second light actions
Face 223b, and the first light action face 223a and the second light action face 223b is the different inclined-plane of inclined direction and is formed asymmetric
Shape.That is, the first light action face 223a and the second light action face 223b are inclined to different angles relative to incidence surface 221a
Degree, and the area of the second light action face 223b of directly light can be designed to the area greater than the first light action face 223a, with
Increase the volume reflection of light, and then promotes the service efficiency of light.
In the aforementioned embodiment, the size of light modulation structure is identical not to limit the utility model.In other implementations
In example, the size of light modulation structure can also design at a distance from incidence surface according to it.Referring to figure 4. shown in, Fig. 4 be show according to
According to the schematic device of the backlight module of the third embodiment of the utility model.The knot of the backlight module 400 of present embodiment
Structure is identical as the generally structure of backlight module 100 shown in FIG. 1, and difference is only that the light guide plate 420 of backlight module 400 has
Different structure designs.
Please continue to refer to Fig. 4, light guide plate 420 has ontology 421, multiple strip structures 422 and multiple light modulation structures
423.In the present embodiment, strip structure 422 is arranged on ontology 421.Wherein, strip structure 422 extends perpendicularly to
The incidence surface 421a of ontology 421.In the present embodiment, strip structure 422 is convex architecture, and light modulation structure 423 is arranged in item
The top of shape structure 422.In other embodiments, strip structure 422 also can be sunk structure, and the setting of light modulation structure 423 exists
The bottom end of strip structure 422.In addition, the design of light modulation structure 423 is identical as aforementioned light modulation structure 223 and 323, therefore herein no longer
It repeats.
As shown in figure 4, in the present embodiment, the size of light modulation structure 423 is with light modulation structure 423 and incidence surface 421a's
Distance increases and increases.That is, the size of the light modulation structure 423 far from incidence surface 421a is greater than close to incidence surface 421a's
The size of light modulation structure 423 uses the amount of light for promoting position of the light guide plate 420 far from incidence surface 421a, and then increases guide-lighting
The whole outgoing light homogeneity of plate 420.
In the aforementioned embodiment, the spacing between light modulation structure can also design at a distance from incidence surface according to it.It please join
According to shown in Fig. 5, Fig. 5 is the schematic device for showing the backlight module of the 4th embodiment according to the utility model.This implementation
The structure of backlight module 100 shown in the structure and Fig. 1 of the backlight module 500 of mode is substantially the same, and difference is only that backlight mould
There is the light guide plate 520 of group 500 different structures to design.
Please continue to refer to Fig. 5, light guide plate 520 has ontology 521, multiple strip structures 522 and multiple light modulation structures
523.In the present embodiment, strip structure 522 is arranged on ontology 521.Wherein, strip structure 522 extends perpendicularly to
The incidence surface 521a of ontology 521.In the present embodiment, strip structure 522 is convex architecture, and light modulation structure 523 is arranged in item
The top of shape structure 522.In other embodiments, strip structure 522 also can be sunk structure, and the setting of light modulation structure 523 exists
The bottom end of strip structure 522.In addition, the design of light modulation structure 523 is identical as aforementioned light modulation structure 223 and 323, therefore herein no longer
It repeats.
As shown in figure 5, in the present embodiment, the distance between light modulation structure 523 is with light modulation structure 523 and incidence surface
The distance of 521a increases and reduces.It is leaned on that is, the distance between light modulation structure 523 of separate incidence surface 521a P2 is less than
The distance between the light modulation structure 523 of nearly incidence surface 521a P1.Whereby, by 523 row of light modulation structure far from incidence surface 521a
The design of column comparatively dense can promote the amount of light of position of the light guide plate 520 far from incidence surface 521a, and then increase light guide plate 520
Whole outgoing light homogeneity.
Fig. 6 separately is please referred to, is the schematic device for showing the display device according to the embodiments of the present invention.This
The display device 600 of embodiment includes backlight module 100 and display panel 610 as shown in Figure 1.As shown in fig. 6, display
The light emission side of the light guide plate 120 of backlight module 100 is arranged in panel 610.Display device 600 passes through the strip on light guide plate 120
The design of structure 122 and light modulation structure 123 equally can reach and increase after light enters light guide plate 120 provided by light source 110
Service efficiency, therefore details are not described herein.It is noted that embodiment of this case is applied to display with backlight module 100 shown in FIG. 1
Only to explanation of demonstrating in device 600, not to limit the utility model.The light guide plate of aforementioned other embodiments (such as is led
Tabula rasa 220) or the backlight module (such as backlight module 400 or 500) of other embodiments can be applied in display device, with
Generate same effect.
By the above embodiment of the utility model it is found that the utility model in the end of strip structure mainly by being arranged
Light modulation structure, and increase by making the light action face inclined degree difference of light modulation structure the volume reflection of light or guidance light goes out
Light, and then the service efficiency and outgoing light homogeneity of light can be promoted.
Although being disclosed by above embodiment the utility model, it is not limited to practical
Novel, those of ordinary skill in the art should can make various changes and profit without departing from the spirit and scope of the utility model
Decorations, therefore the protection scope of the utility model is subject to the range that the appended claims define.
[reference signs list]
100 backlight modules
110 light sources
120 light guide plates
121 ontologies
121a incidence surface
121b reflecting surface
121c light-emitting surface
The anti-incidence surface of 121d
122 strip structures
123 light modulation structures
The first light action of 123a face
The second light action of 123b face
220 light guide plates
221 ontologies
221a incidence surface
221b reflecting surface
221c light-emitting surface
The anti-incidence surface of 221d
222 strip structures
223 light modulation structures
The first light action of 223a face
The second light action of 223b face
400 backlight modules
420 light guide plates
421 ontologies
421a incidence surface
422 strip structures
423 light modulation structures
500 backlight modules
520 light guide plates
521 ontologies
521a incidence surface
522 strip structures
523 light modulation structures
600 display devices
610 display panels
1 first angle of α
1 second angle of β
2 first angle of α
2 second angle of β
P1 distance
P2 distance
Claims (12)
1. a kind of light guide plate, includes:
Ontology, it includes incidence surface and the optical surfaces connecting with the incidence surface；
Multiple strip structures are arranged on the optical surface, each described strip structure has end；And
Multiple light modulation structures are arranged on the end of the strip structure, each described light modulation structure includes first
Light action face and the second light action face being connect with first light action face；
It is characterized in that, first light action is facing towards the incidence surface, second light action facing towards the ontology with
The opposite side of the incidence surface, first light action face and second light action face be the different inclined-plane of inclined direction and
Asymmetric shape is formed, first light action face has the first angle, second light action face phase relative to the optical surface
There is the second angle for the optical surface, first angle and second angle are acute angle, and first angle is different
In second angle.
2. light guide plate according to claim 1, which is characterized in that each strip structure extends perpendicularly to
The extending direction of the incidence surface.
3. light guide plate according to claim 1, which is characterized in that
The ontology has anti-incidence surface, opposite with the incidence surface；
One end of each strip structure connects the incidence surface, and the other end connects the anti-incidence surface.
4. light guide plate according to claim 1, which is characterized in that first angle is greater than second angle.
5. light guide plate according to claim 1, which is characterized in that the light modulation structure is continuously set along the strip structure
It sets or is discontinuously arranged.
6. light guide plate according to claim 1, which is characterized in that the size of the light modulation structure is with the light modulation structure
Increase with the increase at a distance from the incidence surface.
7. light guide plate according to claim 1, which is characterized in that the distance between described light modulation structure is with the light modulation
Increase of the structure at a distance from the incidence surface and reduce.
8. light guide plate according to claim 1, which is characterized in that each described strip structure is arc structure or triangle
Shape structure.
9. light guide plate according to claim 1, which is characterized in that each described strip structure is projective structure, each
A light modulation structure is sunk structure.
10. light guide plate according to claim 1, which is characterized in that the optical surface is light-emitting surface or reflecting surface.
11. a kind of backlight module, includes:
Light guide plate according to any one of claim 1 to 10；And
Light source is adjacent to the incidence surface of the light guide plate.
12. a kind of display device, includes:
Light guide plate according to any one of claim 1 to 10；
Light source is adjacent to the incidence surface of the light guide plate；And
Display panel is arranged in front of the light guide plate.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820310769.7U CN208331857U (en) | 2018-03-07 | 2018-03-07 | Light guide plate, backlight module and display device |
| TW107203297U TWM564171U (en) | 2018-03-07 | 2018-03-14 | Light guide plate, backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820310769.7U CN208331857U (en) | 2018-03-07 | 2018-03-07 | Light guide plate, backlight module and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208331857U true CN208331857U (en) | 2019-01-04 |
Family
ID=63642398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820310769.7U Active CN208331857U (en) | 2018-03-07 | 2018-03-07 | Light guide plate, backlight module and display device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN208331857U (en) |
| TW (1) | TWM564171U (en) |
-
2018
- 2018-03-07 CN CN201820310769.7U patent/CN208331857U/en active Active
- 2018-03-14 TW TW107203297U patent/TWM564171U/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| TWM564171U (en) | 2018-07-21 |
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