CN108037560A - Light guide plate and backlight module - Google Patents
Light guide plate and backlight module Download PDFInfo
- Publication number
- CN108037560A CN108037560A CN201711426687.5A CN201711426687A CN108037560A CN 108037560 A CN108037560 A CN 108037560A CN 201711426687 A CN201711426687 A CN 201711426687A CN 108037560 A CN108037560 A CN 108037560A
- Authority
- CN
- China
- Prior art keywords
- light
- light guide
- guide plate
- incidence surface
- backlight module
- Prior art date
- 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.)
- Pending
Links
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 230000002708 enhancing effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002096 quantum dot Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0045—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0055—Reflecting element, sheet or layer
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The present invention provides a kind of light guide plate and backlight module, light guide plate includes incidence surface, the light-emitting surface opposite with incidence surface and the top and bottom of connection incidence surface and light-emitting surface, the bottom surface includes the plane of reflection of setpoint distance, the top surface includes the plane of refraction of setpoint distance, and the top surface includes multiple steps.Backlight module includes backlight module, including at least one above-mentioned light guide plate and at least one light source, and the light that the light source is sent enters light guide plate by incidence surface, by the multiple refraction of top surface and the multiple reflections of bottom surface, is projected from light-emitting surface.Above-mentioned light guide plate and back light module unit structure are simple, improve light utilization efficiency, enhancing emergent ray uniformity.
Description
Technical field
The present invention relates to display technology field, more specifically, is related to a kind of light guide plate and backlight module.
Background technology
The backlight module of usual light source or display is needed using the light after the light-guide device offers such as light guide plate processing,
It is weaker for the light intensity apart from light source position farther out in light guide plate, cause the light that projects from light guide plate uneven, reduce
Display effect, the light utilization efficiency of light guide plate are undesirable.
The content of the invention
In view of the above problems, the object of the present invention is to provide a kind of simple in structure, raising light utilization efficiency, enhancing emergent ray
The light guide plate and backlight module of uniformity.
According to an aspect of the present invention, there is provided a kind of light guide plate, including incidence surface, the light-emitting surface opposite with incidence surface with
And the top and bottom of connection incidence surface and light-emitting surface, the bottom surface include the plane of reflection of setpoint distance, the top surface includes
The plane of refraction of setpoint distance, the top surface include multiple steps.
The light guide plate, wherein, the incidence surface is plane of refraction.
The light guide plate, wherein, multiple grooves are provided with the incidence surface.
The light guide plate, wherein, the density of the multiple groove increases as the distance of incidence surface and light source increases.
The light guide plate, wherein, the bottom surface is provided with multiple optics sites.
The light guide plate, wherein, the density of the multiple optics site increases as the distance of bottom surface and light source increases
Add.
The light guide plate, wherein, the top surface includes multiple steps, and the inclination plane inclination of different steps is different.
The light guide plate, wherein, the bottom surface both sides are provided with towards the curved hook structure in inner side, anti-for being laid with
Penetrate film.
According to another aspect of the present invention, there is provided a kind of backlight module, including at least one above-mentioned light guide plate and at least
One light source, the light that the light source is sent enter light guide plate by incidence surface, multiple with bottom surface by repeatedly reflecting for top surface
Reflection, is projected from light-emitting surface.
The backlight module, wherein, the incidence surface combination of multiple light guide plates or/and going out for multiple light guide plates
Smooth surface is combined as straight line, broken line, curve or camber line.
Light guide plate of the present invention will be projected from the light of incidence surface incidence has refraction work(including multiple steps
The top surface of energy, the bottom surface with reflection function is refracted to by top surface, incident ray is carried out repeatedly to reflect and reflect, raising is led
Tabula rasa is conducive to the uniform of light to the utilization rate of light.
In addition, the size of each light guide plate is smaller, make and convenient for disassembly and assembly, each light guide plate can receive light, more
A light guide plate can carry out a variety of different splicings, adapt to the requirement of different displays or light source, and cause light-emitting surface after splicing
Beam projecting is uniform, improves display effect.
Brief description of the drawings
By reference to the explanation below in conjunction with attached drawing, with the present invention is more fully understood, other purposes of the invention
And result will be more apparent and should be readily appreciated that.In the accompanying drawings：
Fig. 1 is the schematic diagram of light guide plate of the present invention；
Fig. 2-4 is the schematic diagram of backlight module of the present invention.
Identical label indicates similar or corresponding feature or function in all of the figs.
Embodiment
In the following description, for purposes of illustration, in order to provide the comprehensive understanding to one or more embodiments, explain
Many details are stated.It may be evident, however, that it can also realize these embodiments in the case of these no details.
Fig. 1 is the schematic diagram of light guide plate of the present invention, as shown in Figure 1, wherein, the light guide plate 100 includes incidence surface
110th, the light-emitting surface 120 opposite with incidence surface and top surface 130 and the bottom surface 140 of connection incidence surface 110 and light-emitting surface 120, institute
Stating bottom surface 140 includes the plane of reflection of setpoint distance, and the top surface 130 includes the plane of refraction of setpoint distance, the top surface bag
Multiple steps are included, such as the step 131-134 in Fig. 1, the gradient of the inclined plane of different steps can be identical or different.
In a preferred embodiment of the invention, the incidence surface 110 is plane of refraction, is provided with incidence surface multiple recessed
Groove 111, the light that light source is sent diffuse into light guide plate by the refraction of groove 111, are combined, can reached good with top and bottom
Light mixing effect, strengthen emergent ray uniformity, advantageously reduce the thickness of light guide plate, strengthen the guide-lighting performance of light guide plate, it is excellent
Selection of land, the density of the multiple groove 111 increase as the distance of incidence surface and light source increases；The bottom surface 140 is provided with
Multiple optics sites 141, strengthen the reflecting properties of bottom surface, it is preferable that the density of the multiple optics site 141 with bottom surface with
The distance of light source increases and increases.
Above-mentioned light guide plate sets groove 111 or/and optics site 141 according to the distance of light source, close to light source position
Light is stronger, and the light away from light source is weaker, can be with by the adjusting of groove 111 or/and 141 quantity of optics site and density
Strengthen the uniformity of light.
In order to strengthen reflecting properties, bottom surface 140 can set the coating or reflector plate for reflection light, can also pacify
Reflectance coating is filled, as shown in Figure 1,140 both sides of the bottom surface are provided with towards the curved hook structure 142 in inner side, it is anti-for being laid with
Film is penetrated, reflectance coating is covered on bottom surface 140 by hook structure 142, easy disassembly and replacement.
As shown in Figure 1, backlight module of the present invention includes light guide plate 100 and light source 200, what the light source 200 was sent
Light enters light guide plate 100 by incidence surface 110, by the multiple refraction of top surface 130 and the multiple reflections of bottom surface 140, from light extraction
Project in face 120.
Above-mentioned backlight module can include multiple light guide plates 100 and light source 200, and as in Figure 2-4, light guide plate 100 enters
The length of smooth surface 110 and the length of light-emitting surface 120 can be identical or different, as shown in Fig. 2, the incidence surface 110 of multiple light guide plates
The light-emitting surface of straight line, broken line, curve or camber line can be combined as, as shown in figure 3, the light-emitting surface 120 of multiple light guide plates can also
It is combined as the light-emitting surface of straight line, broken line, curve or camber line.
In one embodiment of the invention, as shown in figure 4,120 length of the incidence surface 110 of light guide plate 100 and light-emitting surface
Identical, multiple light guide plates 100 combine, and the light-emitting surface and incidence surface after combination can be straight line, broken line, curve or camber line at the same time,
For example, combination in different light guide plates incidence surface and light-emitting surface can have different gradients, multiple light guide plate groups
Close, multiple light-emitting surfaces and incidence surface are combined into broken line at the same time, and and for example, the incidence surface and light-emitting surface of the different light guide plates in combination can
To be combined into camber line or curve at the same time with different radians, multiple light guide plate combinations, multiple light-emitting surfaces and incidence surface.
Preferably, the shape of multiple steps of light guide plate can be set according to the shape and size of the device with light guide plate combination
Meter, so that the device can be prevented in the gap of multiple light guide plate combinations, effectively reduces backlight module or the installation back of the body
The volume of the instrument of optical mode group.
The various embodiments described above show the diversified forms of light guide plate and backlight module of the present invention, but the present invention is not
It is limited to this, backlight module can include multiple light guide plates 100 and a light source 200 (Fig. 4 is shown), can also include multiple leaded lights
Plate 100 and multiple light sources 200, in addition, Quantum Dot Glass can also be included between the incidence surface 110 and light source 200 of light guide plate 100
Pipe 300, improves the uniformity being radiated on incidence surface.
Although content disclosed above shows the exemplary embodiment of the present invention, it should be noted that without departing substantially from power
On the premise of profit requires the scope of the present invention of restriction, it may be many modifications and change.In addition, the although element of the present invention
It can describe or require in the form of individual, it is also contemplated that it is multiple, it is unless explicitly limited odd number.
Claims (10)
1. a kind of light guide plate, including incidence surface, it is characterised in that further include the light-emitting surface opposite with incidence surface and connection enters light
Face and the top and bottom of light-emitting surface, the bottom surface include the plane of reflection of setpoint distance, and the top surface includes setpoint distance
Plane of refraction, the top surface include multiple steps.
2. light guide plate according to claim 1, it is characterised in that the incidence surface is plane of refraction.
3. light guide plate according to claim 2, it is characterised in that multiple grooves are provided with the incidence surface.
4. light guide plate according to claim 3, it is characterised in that the density of the multiple groove is with incidence surface and light source
Distance increase and increase.
5. light guide plate according to claim 1, it is characterised in that the bottom surface is provided with multiple optics sites.
6. light guide plate according to claim 5, it is characterised in that the density of the multiple optics site is with bottom surface and light
The distance in source increases and increases.
7. light guide plate according to claim 1, it is characterised in that the top surface includes multiple steps, and different steps incline
Inclined-plane gradient is different.
8. light guide plate according to claim 1, it is characterised in that the bottom surface both sides are provided with towards the curved extension in inner side
Hook structure, for being laid with reflectance coating.
9. a kind of backlight module, it is characterised in that including the leaded light described in any claim at least one claim 1-6
Plate and at least one light source, the light that the light source is sent enter light guide plate by incidence surface, pass through the multiple refraction of top surface and bottom
The multiple reflections in face, are projected from light-emitting surface.
10. backlight module according to claim 9, it is characterised in that multiple light guide plates incidence surface combination or/and
The light-emitting surface of multiple light guide plates is combined as straight line, broken line, curve or camber line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711426687.5A CN108037560A (en) | 2017-12-26 | 2017-12-26 | Light guide plate and backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711426687.5A CN108037560A (en) | 2017-12-26 | 2017-12-26 | Light guide plate and backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108037560A true CN108037560A (en) | 2018-05-15 |
Family
ID=62101211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711426687.5A Pending CN108037560A (en) | 2017-12-26 | 2017-12-26 | Light guide plate and backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108037560A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1609682A (en) * | 2003-10-23 | 2005-04-27 | 鸿富锦精密工业（深圳）有限公司 | Area illuminating apparatus and light conducting plate thereof |
| TW200530689A (en) * | 2004-03-05 | 2005-09-16 | Hon Hai Prec Ind Co Ltd | Backlight module and light guide plate thereof |
| CN101755167A (en) * | 2007-06-12 | 2010-06-23 | 欧姆龙株式会社 | Surface light source apparatus |
| CN102144307A (en) * | 2008-07-03 | 2011-08-03 | 三星Led株式会社 | An LED package and a backlight unit comprising said LED package |
| CN104075190A (en) * | 2014-06-25 | 2014-10-01 | 福州大学 | Backlight module based on quantum dot light guide plate |
| CN105135316A (en) * | 2015-08-25 | 2015-12-09 | 马瑞利汽车零部件(芜湖)有限公司 | Novel automotive tail light with combined optical system |
| CN105759339A (en) * | 2016-02-23 | 2016-07-13 | 安比斯特殊玻璃（苏州）有限公司 | Glass light guide plate and liquid crystal display module thereof |
| DE202017003766U1 (en) * | 2016-11-03 | 2017-09-22 | Hyundai Mobis Co., Ltd. | Fahrzeuglichtleiteinheit |
| CN207867067U (en) * | 2017-12-26 | 2018-09-14 | 重庆市中光电显示技术有限公司 | Light guide plate and backlight module |
-
2017
- 2017-12-26 CN CN201711426687.5A patent/CN108037560A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1609682A (en) * | 2003-10-23 | 2005-04-27 | 鸿富锦精密工业（深圳）有限公司 | Area illuminating apparatus and light conducting plate thereof |
| TW200530689A (en) * | 2004-03-05 | 2005-09-16 | Hon Hai Prec Ind Co Ltd | Backlight module and light guide plate thereof |
| CN101755167A (en) * | 2007-06-12 | 2010-06-23 | 欧姆龙株式会社 | Surface light source apparatus |
| CN102144307A (en) * | 2008-07-03 | 2011-08-03 | 三星Led株式会社 | An LED package and a backlight unit comprising said LED package |
| CN104075190A (en) * | 2014-06-25 | 2014-10-01 | 福州大学 | Backlight module based on quantum dot light guide plate |
| CN105135316A (en) * | 2015-08-25 | 2015-12-09 | 马瑞利汽车零部件(芜湖)有限公司 | Novel automotive tail light with combined optical system |
| CN105759339A (en) * | 2016-02-23 | 2016-07-13 | 安比斯特殊玻璃（苏州）有限公司 | Glass light guide plate and liquid crystal display module thereof |
| DE202017003766U1 (en) * | 2016-11-03 | 2017-09-22 | Hyundai Mobis Co., Ltd. | Fahrzeuglichtleiteinheit |
| CN207867067U (en) * | 2017-12-26 | 2018-09-14 | 重庆市中光电显示技术有限公司 | Light guide plate and backlight module |
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |