CN208334700U - Light guide plate, backlight module and display device - Google Patents
Light guide plate, backlight module and display device Download PDFInfo
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- CN208334700U CN208334700U CN201820860294.9U CN201820860294U CN208334700U CN 208334700 U CN208334700 U CN 208334700U CN 201820860294 U CN201820860294 U CN 201820860294U CN 208334700 U CN208334700 U CN 208334700U
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- light
- guide plate
- plate body
- light guide
- groove
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Abstract
The utility model provides a kind of light guide plate, including light conducting plate body.The utility model additionally provides a kind of backlight module, including above-mentioned light guide plate and the light source being set at the receiving hole of light guide plate.The utility model additionally provides a kind of display device, including above-mentioned backlight module.Light guide plate provided by the utility model, by the way that several are arranged on reflective surface by the groove of the light importeding into light conducting plate body progress internal reflection, the light that light source issues passes through the light conducting plate body, most of light can be all-trans in light conducting plate body is incident upon groove, and internal reflection occurs under the action of groove, light a part by groove internal reflection reflects the external world through light-emitting surface, small part light can reflect away from reflective surface, by the cooperation of several grooves, play the role of destroying light guide plate total internal reflection, and it can effectively change the direction for the light being emitted from light-emitting surface, have the function of cutting light simultaneously, reduce the light projected from light conducting plate body side.
Description
Technical field
The utility model belongs to field of display technology, is to be related to a kind of light guide plate, backlight module and display more specifically
Device.
Background technique
Most of current light guide plate is adjusted light by the way that site is arranged in reflecting surface, and the processing of site is usually
It is processed by the way of laser dotting or ink silk screen printing, process is complex, and the knot of the light guide plate with site
Structure is not reasonable so that light direction degree of controllability is low, cause out light it is uneven.
Utility model content
The purpose of this utility model is to provide a kind of light guide plate, with solve light guide plate existing in the prior art go out light can
Control property difference leads to the non-uniform technical problem of light out.
In order to achieve the above purposes, the technical solution adopted by the utility model is: provides a kind of light guide plate, comprising: light guide plate
Ontology, the light conducting plate body offer the receiving hole for placing light source, and the light that the light source issues passes through the receiving hole
Side wall import in the light conducting plate body；The light conducting plate body is equipped with reflective surface and goes out with what the reflective surface was oppositely arranged
Smooth surface, the reflective surface is equipped with several grooves that light imported in the light conducting plate body is carried out to internal reflection, described recessed
Slot is reflected for destroying total reflection of the light inside the light conducting plate body, and then by the light to different directions,
It is projected by the light of the groove reflection from the light-emitting surface.
Further, the cross-sectional shape of the groove is arc or polygon.
Further, the surface of the reflective surface is equipped with reflecting layer.
Further, the surface of the light-emitting surface is the surface by atomization process.
Further, the light conducting plate body is annular closed structure, and the quantity of the light source is multiple, multiple light
Source equably corresponds to the side wall setting of the receiving hole.
Further, several described grooves are arranged at intervals on the reflective surface, and the distribution density of the groove is along institute
It states light conducting plate body and is incremented by close to one end of the light source to the other end far from the light source.
Further, multiple grooves are annular concentric structure, the center at the center of the groove and the receiving hole
It is overlapped.
The utility model additionally provides a kind of backlight module, including above-mentioned light guide plate, and is set to light guide plate receiving
Light source at hole.
It further, further include substrate, closed, the light source are evenly arranged in the substrate to the substrate in a ring
Lateral wall on.
The utility model additionally provides a kind of display device, including above-mentioned backlight module, and is set to backlight module
The display device of light direction.
The beneficial effect of light guide plate provided by the utility model is: compared with prior art, the utility model light guide plate
By be arranged on reflective surface several by the light importeding into light conducting plate body carry out internal reflection groove, light source issue
Light passes through the light conducting plate body, and most of light can be all-trans in light conducting plate body is incident upon groove, the fluctuating table of groove
Face makes light that different degrees of change occur relative to the incident angle of reflective surface, and then destroys total reflection condition, so that light
Internal reflection occurs under the action of groove and changes reflection angle for line, and light a part by groove internal reflection is through light-emitting surface
The external world is reflected, small part light can reflect away from reflective surface, and by the cooperation of several grooves, it is guide-lighting to play destruction
The effect of plate total internal reflection, and can effectively change the direction for the light being emitted from light-emitting surface, and generate various directions
Reflected light, while having the function of cutting light, reduce the light projected from light conducting plate body side, so that penetrating from light-emitting surface
Light out is relatively uniform and the utilization rate of light is promoted.
Detailed description of the invention
It, below will be to embodiment or the prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this is practical new
Some embodiments of type for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the overlooking structure diagram of light guide plate provided by the embodiment of the utility model；
Fig. 2 is the schematic cross-sectional view in Fig. 1 along line A-A；
Fig. 3 is the partial enlargement diagram of part B in Fig. 2；
Fig. 4 is the partial enlargement diagram of C portion in Fig. 2；
Fig. 5 is the index path of light guide plate used by the utility model embodiment；
Fig. 6 is the low-angle light distribution schematic diagram of light guide plate provided by the embodiment of the utility model；
Fig. 7 is the wide-angle light distribution schematic diagram of light guide plate provided by the embodiment of the utility model.
Wherein, each appended drawing reference in figure:
10- light conducting plate body；2- light source；100- receiving hole；101- reflective surface；102- light-emitting surface；1010- groove；3- base
Plate.
Specific embodiment
In order to which technical problem to be solved in the utility model, technical solution and beneficial effect is more clearly understood, with
Lower combination accompanying drawings and embodiments, the present invention will be further described in detail.It should be appreciated that specific reality described herein
It applies example to be only used to explain the utility model, is not used to limit the utility model.
It should be noted that when component is referred to as " being fixed on " or " being set to " another component, it can directly or
It connects and is located on another component.When a component referred to as " is connected to " another component, it be can be directly or indirectly
It is connected on another component.Term " on ", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top",
The orientation or position of the instructions such as "bottom", "inner", "outside" are orientation based on the figure or position, are merely for convenience of describing,
It should not be understood as the limitation to the technical program.Term " first ", " second " are used merely to facilitate description purpose, and should not be understood as
Indication or suggestion relative importance or the quantity for implicitly indicating technical characteristic.The meaning of " plurality " is two or more,
Unless otherwise specifically defined.
Also referring to Fig. 1 to Fig. 6, now light guide plate provided by the embodiment of the utility model is illustrated.The leaded light
Plate, including light conducting plate body 10 offer the receiving hole 100 for placing light source 2 in light conducting plate body 10, what light source 2 issued
Light is imported into light conducting plate body 10 by the side wall of receiving hole 100, is cooperated using this light source 2 and light conducting plate body 10
Mode can form the light emitting region of large area, and only need one or few light source 2, such as small in size and brightness is higher
LED light source 2 forms the area source 2 of large area by light conducting plate body 10 when light source 2 shines；Light conducting plate body 10 is equipped with
Reflective surface 101 and the light-emitting surface 102 being oppositely arranged with reflective surface 101, reflective surface 101, which is equipped with several, will imported into light guide plate
Light in ontology 10 carries out the groove 1010 of internal reflection, and groove 1010 is for destroying light being all-trans inside light conducting plate body
It penetrates, and then light is reflected to different directions, projected from light-emitting surface 102 by the light that groove 1010 reflects, above structure
Light guide plate can direct integrated injection molding.Such as Fig. 5, the light issued from light source 2 is in light conducting plate body 10 mostly by going out
Smooth surface 102 is reflected, and reflexes to reflective surface 101, and reflected light can generate each when encountering the contoured surface of groove 1010
The reflected light in direction largely passes through light-emitting surface 102 by the light that groove 1010 reflects and reflects the external world, small part light meeting
It is reflected away from reflective surface 101.The low-angle light distribution such as Fig. 6 may be implemented in the light guide plate of above-mentioned structure.
Light guide plate provided by the embodiment of the utility model, it is compared with prior art, several by being arranged on reflective surface 101
A groove 1010 that the light importeding into light conducting plate body 10 is carried out to internal reflection, the light that light source 2 issues pass through the leaded light
Plate ontology 10, most of light can be all-trans in light conducting plate body 10 is incident upon groove 1010, the contoured surface of groove 1010
So that different degrees of change occurs relative to the incidence angle of reflective surface 101 for light, and then total reflection condition is destroyed, so that light
Internal reflection occurs under the action of groove 1010 and changes reflection angle, light a part warp by 1010 internal reflection of groove
Light-emitting surface 102 reflects the external world, and small part light can reflect away from reflective surface 101, by matching for several grooves 1010
It closes, plays the role of destroying light guide plate total internal reflection, and can effectively change the side for the light being emitted from light-emitting surface 102
To, and the reflected light in various directions is generated, while having the function of cutting light, reduce from the injection of 10 side of light conducting plate body
Light, so that the light from the injection of light-emitting surface 102 is that uniform and light utilization rate is promoted.
Further, a kind of tool also referring to Fig. 3 and Fig. 4, as light guide plate provided by the embodiment of the utility model
Body embodiment, the shape of the cross section of groove 1010 are arc or polygon.Groove 1010 of different shapes realizes optical path
Angle it is different, the cross section of further groove 1010 is preferably shaped to arc.The trend of groove and light incidence light guide plate
Direction is vertical, and specifically, multiple grooves are annular concentric structure, and the center of groove is overlapped with the center of holding tank.
Further, Fig. 1 and Fig. 2 is please referred to, a kind of specific reality as light guide plate provided by the embodiment of the utility model
Mode is applied, is equipped with reflecting layer (not shown) on the surface of reflective surface 101.Specifically, which can be the anti-of paper-like
Film is penetrated, which plates on the reflecting surface, which can be the film layers with high reflectivity such as silver, aluminium, and the purpose is to anti-
The light for being incident upon reflective surface 101 carries out light leakage processing, and light is avoided to project from reflective surface 101.
Further, Fig. 1, Fig. 2, Fig. 6 and Fig. 7 are please referred to, one as light guide plate provided by the embodiment of the utility model
Slight atomization process is passed through on the surface of kind specific embodiment, light-emitting surface 102, can destroy the complete of light guide plate light-emitting surface 102
Internal reflection condition, more light can be reflected from light-emitting surface 102, and oblique fire is gone out, such that being emitted from light-emitting surface 102
Light realize wide-angle light distribution as shown in Figure 7.Allow the light distribution of light guide plate from low-angle light distribution shown in fig. 6 to figure
Wide-angle light distribution shown in 7 is realized that two kinds of angles of same structure shine, so that the application of light guide plate is wider, can both be weighed
Point illumination can also be with floodlighting.
Further, referring to Fig. 1, providing a kind of specific implementation for the light guide plate that embodiment provides as the utility model
Mode, light conducting plate body 10 are annular closed structure, the quantity of light source 2 be it is multiple, multiple light sources 2 equably correspond to receiving hole
100 side wall setting.The corresponding a part of light conducting plate body 10 of each light source 2, so that light distribution is uniform.
Further, a kind of specific implementation refering to Fig. 2 to Fig. 4, as light guide plate provided by the embodiment of the utility model
Mode, several grooves 1010 are arranged at intervals on reflective surface 101, and the distribution density of groove 1010 is close along light conducting plate body 10
One end of light source 2 is incremented by the other end far from light source 2.
Further, referring to Fig. 1, a kind of specific embodiment party as light guide plate provided by the embodiment of the utility model
Formula, receiving hole 100 are through-hole or blind hole.Specifically, when receiving hole 100 is blind hole, it is blind light source 2 can be placed directly in this
In hole；Receiving hole 100 is preferably through-hole, and the placement concordant with light conducting plate body 10 of light source 2 can will be more as far as possible by the side wall of through-hole
Light be directed into light conducting plate body 10.
Referring to Fig. 1, the utility model also provides a kind of backlight module, the backlight module includes above-mentioned light guide plate,
And it is set to the light source 2 at light guide plate receiving hole 100.
Backlight module provided by the utility model, using above-mentioned light guide plate, by the cooperation of several grooves 1010,
Play the role of destroying light guide plate total internal reflection, and can effectively change the direction from 102 emergent light of light-emitting surface, simultaneously
Have the function of cutting light, reduces the light of 10 side of light conducting plate body injection.
Further, refering to fig. 1 and Fig. 3, a kind of specific reality as backlight module provided by the embodiment of the utility model
Mode is applied, further includes substrate 3, closed, light source 2 are evenly arranged on the lateral wall of substrate 3 substrate 3 in a ring.Specifically,
The substrate 3 is soft aluminum substrate 3, convenient for by the substrate 3 bending, circlewise, light source 2 is evenly arranged on soft aluminum substrate 3, surrounds one
Circle.
The utility model also provides a kind of display device, and the display device includes above-mentioned backlight module and is set to
The display module of backlight module light direction.
Display device provided by the utility model, using above-mentioned backlight module, by the way that groove is arranged in reflective surface 101
1010, not only play the role of destroying light guide plate total internal reflection, and can effectively change from the outgoing of light guide plate light-emitting surface 102
The direction of light, while having the function of cutting light, it is possible to reduce the light gone out from light guide plate side.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (10)
1. light guide plate, it is characterised in that: including light conducting plate body, the light conducting plate body offers the receiving for placing light source
Hole, the light that the light source issues are imported in the light conducting plate body by the side wall of the receiving hole；
The light-emitting surface that the light conducting plate body is equipped with reflective surface and is oppositely arranged with the reflective surface, the reflective surface are equipped with several
A groove that the light imported in the light conducting plate body is carried out to internal reflection, the groove is for destroying the light described
Total reflection inside light conducting plate body, so by the light to different directions reflect, by the groove reflection light from
The light-emitting surface projects.
2. light guide plate as described in claim 1, it is characterised in that: the cross-sectional shape of the groove is arc or polygon
Shape.
3. light guide plate as claimed in claim 1 or 2, it is characterised in that: the surface of the reflective surface is equipped with reflecting layer.
4. light guide plate as claimed in claim 1 or 2, it is characterised in that: the surface of the light-emitting surface is by atomization process
Surface.
5. light guide plate as claimed in claim 4, it is characterised in that: the light conducting plate body is annular closed structure, the light
The quantity in source be it is multiple, multiple light sources equably correspond to the receiving hole side wall setting.
6. light guide plate as claimed in claim 5, it is characterised in that: several described grooves are arranged at intervals at the reflective surface
On, the distribution density of the groove is along the light conducting plate body close to one end of the light source to the other end far from the light source
It is incremented by.
7. light guide plate as claimed in claim 5, it is characterised in that: multiple grooves are annular concentric structure, the groove
Center be overlapped with the center of the receiving hole.
8. backlight module, it is characterised in that: including light guide plate as described in any one of claim 1 to 7, and be set to described
Light source at the receiving hole of light guide plate.
9. backlight module as claimed in claim 8, it is characterised in that: it further include substrate, substrate closed in a ring, institute
Light source is stated to be evenly arranged on the lateral wall of the substrate.
10. display device, it is characterised in that: including backlight module as claimed in claim 8 or 9, and be set to the back
The display module of optical mode group light direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820860294.9U CN208334700U (en) | 2018-06-05 | 2018-06-05 | Light guide plate, backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820860294.9U CN208334700U (en) | 2018-06-05 | 2018-06-05 | Light guide plate, backlight module and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208334700U true CN208334700U (en) | 2019-01-04 |
Family
ID=64772698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820860294.9U Active CN208334700U (en) | 2018-06-05 | 2018-06-05 | Light guide plate, backlight module and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208334700U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110632700A (en) * | 2019-10-29 | 2019-12-31 | 京东方科技集团股份有限公司 | Light guide plate, light source module and display device |
-
2018
- 2018-06-05 CN CN201820860294.9U patent/CN208334700U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110632700A (en) * | 2019-10-29 | 2019-12-31 | 京东方科技集团股份有限公司 | Light guide plate, light source module and display device |
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