CN207164298U - A kind of light guide plate of uniform in light emission - Google Patents
A kind of light guide plate of uniform in light emission Download PDFInfo
- Publication number
- CN207164298U CN207164298U CN201721258515.7U CN201721258515U CN207164298U CN 207164298 U CN207164298 U CN 207164298U CN 201721258515 U CN201721258515 U CN 201721258515U CN 207164298 U CN207164298 U CN 207164298U
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- CN
- China
- Prior art keywords
- light
- guide plate
- light guide
- uniform
- incidence surface
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
It the utility model is related to back light model setting technology field, more particularly to a kind of light guide plate of uniform in light emission.Incidence surface is provided with multiple hemispheric incident sections, light source injects incidence surface through each incident section, so that light as much as possible is entered in light conducting plate body with the specific refraction of minimum, so can preferably carry out the logical coupling of light, loss of light source is reduced, improves light source utilization rate to improve the brightness of backlight；The light modulation point of light guide plate uses the shape of evagination indent so that the dispersion effect dimmed a little is more preferable, and the light-emitting uniformity of light guide plate is increased.
Description
Technical field
It the utility model is related to back light model setting technology field, more particularly to a kind of light guide plate of uniform in light emission.
Background technology
With the development of science and technology requirement more and more thinner of the people to display screen；And the requirement of the luminescent properties of display screen
Improve much, the structure of the current most of direct-light-type backlights all used of display screen, light in the structure of direct-light-type backlight
Source and the width that light guide plate takes are larger, therefore are difficult to be made thin；So very thin display screen is mostly using side
The structure of light formula backlight module, light source is arranged on the side (i.e. incidence surface) of light guide plate, and light source typically selects LED at present；
Because the length of light guide plate is much larger compared with thickness, during using sidelight type backlight module, it is uneven light extraction often occur, there is dark space
Situation.
The content of the invention
The purpose of this utility model is to provide a kind of light guide plate, the light guide plate uniform in light emission.
To achieve the above object, the utility model provides a kind of light guide plate of uniform in light emission, including light conducting plate body, guide-lighting
Plate body includes incidence surface, exiting surface and reflecting surface, and the side of incidence surface is provided with several incident sections, and each incident section is in hemisphere
Shape, light source inject incidence surface through incident section, and the bottom surface of reflecting surface is provided with multiple raised light modulation points, and the middle part of each light modulation point is inside
It is recessed formed with depression.
Wherein, the hemispherical top surface of incident section is recessed the accommodating cavity for housing light source.
Wherein, the density dimmed a little increases with the increase of distance between light modulation point and incidence surface.
Wherein, in incidence surface to the direction away from incidence surface, the thickness of light conducting plate body gradually decreases.
Wherein, in addition to the buffer part for preventing light conducting plate body from rupturing, buffer part are located at the corner of light conducting plate body
On.
Wherein, buffer part is arcuate structure.
Wherein, light conducting plate body and buffer part are integrally formed.
The beneficial effects of the utility model are：Incidence surface is provided with multiple hemispheric incident sections, light source is through each incidence
Portion injects incidence surface, so that light as much as possible is entered in light conducting plate body with the specific refraction of minimum, so can preferably enter
The logical coupling of row light, reduces loss of light source, improves light source utilization rate to improve the brightness of backlight；The light modulation point of light guide plate uses outer
The shape of convex indent so that the dispersion effect dimmed a little is more preferable, and the light-emitting uniformity of light guide plate is increased.
Brief description of the drawings
Using accompanying drawing, the utility model is described in further detail, but the embodiment in accompanying drawing is not formed to of the present utility model
Any restrictions, on the premise of not paying creative work, can also be according to following attached for one of ordinary skill in the art
Figure obtains other accompanying drawings.
Fig. 1 is the structural representation of light guide plate in the utility model embodiment.
Fig. 2 is the sectional view of light guide plate in the utility model embodiment.
Fig. 3 is the light path schematic diagram of incident section in the utility model embodiment.
Fig. 4 is the structural representation of buffer part in the utility model embodiment.
Include in Fig. 1 to Fig. 4：1 --- light conducting plate body, 11 --- incidence surface, 12 --- exiting surface, 13 --- reflection
Face, 2 --- incident section, 21 --- accommodating cavity, 3 --- light modulation point, 31 --- depression, 4 --- buffer part, 5 --- light source.
Embodiment
The utility model is further described with the following Examples.
As shown in figure 1, a kind of light guide plate of uniform in light emission of the utility model, including light conducting plate body 1, light conducting plate body 1
Including incidence surface 11, exiting surface 12 and reflecting surface 113, the side of incidence surface 11 is provided with several incident sections 2, each incident section 2
Hemispherical, light source 5 injects incidence surface 11 through incident section 2, and the bottom surface of reflecting surface 13 is provided with multiple raised light modulation points 3, each to adjust
The middle part of luminous point 3 concaves formed with depression 31.Incidence surface 11 is provided with multiple hemispheric incident sections 2, light source 5 is through respectively entering
Penetrate portion 2 and inject incidence surface 11, so that light as much as possible is entered in light conducting plate body 1 with the specific refraction of minimum, so can be more
The logical coupling of light is carried out well, reduces loss of light source, improves light source utilization rate to improve the brightness of backlight；The light modulation point of light guide plate
3 use the shape of evagination indent so that the dispersion effect of light modulation point 3 is more preferable, and the light-emitting uniformity of light guide plate is increased.
Further, as shown in Figures 2 and 3, the hemispherical top surface of incident section 2 is recessed for housing light source 5
Accommodating cavity 21, for general light source, such as LED, the light of its surface outgoing is diverging, and accommodating cavity has concave curvatures to cause
Light with minimum specific refraction directive incidence surface 11 with so that light conducting plate body 1, then the intrados of incident section 11 is anti-by light
A narrow light beam is penetrated into, thus there are more light total reflections to return in light conducting plate body 1, rather than be refracted to sky
Gas, so as to reduce loss of light source, improve the brightness of backlight.
Further, the density of light modulation point 3 increases with the increase of distance between light modulation point 3 and incidence surface 11, it is contemplated that
Light conducting plate body 1 needs uniformly externally to launch light, and the light of the reflecting surface 12 in the region of light conducting plate body 2 at incidence surface 11
More, i.e., luminous flux is larger, therefore when corresponding to the luminous flux of exiting surface 13, it is necessary to which the light modulation point that will be close to incidence surface 11 is close
Degree is set more smaller, so as to be advantageous to uniform in light emission.
As shown in Fig. 2 incidence surface to away from incidence surface direction on, the thickness of light conducting plate body gradually decreases, tilt
Reflecting surface 13 reduce the inner total reflection light of light conducting plate body 1 angle, on the one hand reduce light reflex to light guide plate surface
People's firing angle so that reflect light and be more nearly normal direction, on the other hand cause originally because the angle of reflected light it is excessive without
This some light that can be reflected away from light guide plate surface can reflect away in light guide plate surface, be utilized so as to improve LED light
Rate, the brightness for improving backlight.
As shown in figure 4, buffer part 4 is located on the corner of light conducting plate body 1, the buffer part 4 is used to prevent light conducting plate body 1
Rupture, acted on by the stress of buffer part 4, can be when being positioned to light guide plate, most pressure is all sent to slow
Rush in portion 4, alleviate the pressure of light conducting plate body 1, so as to effectively prevent the rupture of light conducting plate body 1.Further, lead to
Cross experiment to draw, arcuate structure can be more uniformly stressed buffer part 4, increase the pressure that buffer part 4 can be born, simultaneously
The assembling that arcuate structure is more beneficial for light guide plate uses.For installation, light conducting plate body 1 and buffer part 4 are integrally formed.
Finally it should be noted that above example is only illustrating the technical solution of the utility model, rather than to this reality
With the limitation of novel protected scope, although being explained with reference to preferred embodiment to the utility model, this area it is general
It is logical it will be appreciated by the skilled person that can be modified to the technical solution of the utility model or equivalent substitution, without departing from this
The spirit and scope of utility model technical scheme.
Claims (7)
1. a kind of light guide plate of uniform in light emission, including light conducting plate body, light conducting plate body includes incidence surface, exiting surface and reflection
Face, it is characterised in that the side of incidence surface is provided with several incident sections, and each incident section is hemispherical, and light source is penetrated through incident section
Enter incidence surface, the bottom surface of reflecting surface is provided with multiple raised light modulation points, and the middle part of each light modulation point concaves formed with depression.
2. the light guide plate of a kind of uniform in light emission according to claim 1, it is characterised in that in the hemispherical top surface of incident section
Spill is into the accommodating cavity having for housing light source.
3. the light guide plate of a kind of uniform in light emission according to claim 1, it is characterised in that dim density a little with light modulation point
The increase of distance between incidence surface and increase.
4. the light guide plate of a kind of uniform in light emission according to claim 1, it is characterised in that in incidence surface to away from incidence surface
Direction on, the thickness of light conducting plate body gradually decreases.
5. the light guide plate of a kind of uniform in light emission according to claim 1, it is characterised in that also include being used to prevent light guide plate
The buffer part of body rupture, buffer part are located on the corner of light conducting plate body.
6. the light guide plate of a kind of uniform in light emission according to claim 5, it is characterised in that buffer part is arcuate structure.
7. the light guide plate of a kind of uniform in light emission according to claim 5 or 6, it is characterised in that light conducting plate body and buffering
Portion is integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721258515.7U CN207164298U (en) | 2017-09-28 | 2017-09-28 | A kind of light guide plate of uniform in light emission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721258515.7U CN207164298U (en) | 2017-09-28 | 2017-09-28 | A kind of light guide plate of uniform in light emission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207164298U true CN207164298U (en) | 2018-03-30 |
Family
ID=61724411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721258515.7U Expired - Fee Related CN207164298U (en) | 2017-09-28 | 2017-09-28 | A kind of light guide plate of uniform in light emission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207164298U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109358390A (en) * | 2018-10-30 | 2019-02-19 | 东莞市谷麦光学科技有限公司 | A kind of leaded light component of uniform in light emission |
| CN111487709A (en) * | 2020-05-12 | 2020-08-04 | 合肥通泰光电科技有限公司 | Light guide plate capable of emitting light uniformly and lamp thereof |
-
2017
- 2017-09-28 CN CN201721258515.7U patent/CN207164298U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109358390A (en) * | 2018-10-30 | 2019-02-19 | 东莞市谷麦光学科技有限公司 | A kind of leaded light component of uniform in light emission |
| CN109358390B (en) * | 2018-10-30 | 2024-03-22 | 东莞市谷麦光学科技有限公司 | Light guide assembly with uniform light emitting |
| CN111487709A (en) * | 2020-05-12 | 2020-08-04 | 合肥通泰光电科技有限公司 | Light guide plate capable of emitting light uniformly and lamp thereof |
| CN111487709B (en) * | 2020-05-12 | 2022-03-11 | 合肥通泰光电科技有限公司 | Light guide plate capable of emitting light uniformly and lamp thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180330 Termination date: 20180928 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |