CN207867067U - Light guide plate and backlight module - Google Patents
Light guide plate and backlight module Download PDFInfo
- Publication number
- CN207867067U CN207867067U CN201721838891.3U CN201721838891U CN207867067U CN 207867067 U CN207867067 U CN 207867067U CN 201721838891 U CN201721838891 U CN 201721838891U CN 207867067 U CN207867067 U CN 207867067U
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- light
- light guide
- guide plate
- incidence
- backlight module
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- Planar Illumination Modules (AREA)
Abstract
A kind of light guide plate of the utility model offer and backlight module, light guide plate includes incidence surface, the light-emitting surface opposite with incidence surface and the top and bottom for connecting 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, the light that the light source is sent out enter light guide plate by incidence surface, by the multiple reflections of the multiple refraction and bottom surface of top 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 utility model is related to display technology fields, more specifically, are 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-guide devices such as light guide plate light that provides that treated,
It is weaker for the light intensity apart from light source position farther out in light guide plate, cause the light projected from light guide plate uneven, reduces
The light utilization efficiency of display effect, light guide plate is undesirable.
Utility model content
In view of the above problems, the purpose of this utility model is to provide one kind simple in structure, raising light utilization efficiency, enhancing outgoing
The light guide plate and backlight module of light uniformity.
One side according to the present utility model provides a kind of light guide plate, including incidence surface, the light extraction opposite with incidence surface
Face and the top and bottom for connecting incidence surface and light-emitting surface, the bottom surface includes the plane of reflection of setpoint distance, the top surface
Plane of refraction including 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 on the incidence surface.
The light guide plate, wherein the density of the multiple groove increases as incidence surface increases at a distance from light source.
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 bottom surface increases at a distance from light source
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 side is provided with towards the hook structure be curved to the inside, anti-for being laid with
Penetrate film.
Other side according to the present utility model, provides 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 out enter light guide plate by incidence surface, pass through multiple refraction and the bottom surface of top surface
Multiple reflections are 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 described in the utility model will be projected from the light of incidence surface incidence has folding including multiple steps
The top surface for penetrating function is refracted to the bottom surface with reflection function by top surface, to incident ray repeatedly reflect and reflect, carry
High light guide plate 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 make light-emitting surface after splicing
Beam projecting is uniform, improves display effect.
Description of the drawings
By reference to the explanation below in conjunction with attached drawing, with the utility model is more fully understood, the utility model
Other purposes and result will be more clearly understood and understood.In the accompanying drawings：
Fig. 1 is the schematic diagram of light guide plate described in the utility model；
Fig. 2-4 is the schematic diagram of backlight module described in the utility model.
Identical label indicates similar or corresponding feature or function in all the appended drawings.
Specific implementation mode
In the following description, for purposes of illustration, it in order to provide the comprehensive understanding to one or more embodiments, explains
Many details are stated.It may be evident, however, that these embodiments can also be realized without these specific details.
Fig. 1 is the schematic diagram of light guide plate described in the utility model, as shown in Figure 1, wherein the light guide plate 100 include into
Smooth surface 110, the light-emitting surface 120 opposite with incidence surface and the top surface 130 and bottom surface that connect incidence surface 110 and light-emitting surface 120
140, the bottom surface 140 includes the plane of reflection of setpoint distance, and the top surface 130 includes the plane of refraction of setpoint distance, described
Top surface includes multiple steps, and such as the step 131-134 in Fig. 1, the gradient of the inclined surface of different steps can be identical or different.
In a preferred embodiment of the utility model, the incidence surface 110 is plane of refraction, is provided on incidence surface more
A groove 111, the light that light source is sent out diffuse into light guide plate by the refraction of groove 111, are combined, can be reached with top and bottom
Good light mixing effect enhances emergent ray uniformity, advantageously reduces the thickness of light guide plate, enhance the light conductivity of light guide plate
It can, it is preferable that the density of the multiple groove 111 increases as incidence surface increases at a distance from light source；The bottom surface 140 is set
Multiple optics sites 141 are equipped with, the reflecting properties of bottom surface are enhanced, it is preferable that the density of the multiple optics site 141 is the bottom of with
Face increases at a distance from light source and is increased.
Above-mentioned light guide plate at a distance from light source according to groove 111 or/and optics site 141 is arranged, close to light source position
Light is stronger, and the light far from light source is weaker, can be with by the adjusting of groove 111 or/and optics site 141 quantity and density
Enhance the uniformity of light.
In order to enhance reflecting properties, bottom surface 140 can be arranged 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 hook structure 142 be curved to the inside, it is anti-for being laid with
Film is penetrated, reflectance coating is covered in by hook structure 142 on bottom surface 140, easy disassembly and replacement.
As shown in Figure 1, backlight module described in the utility model includes light guide plate 100 and light source 200, the light source 200 is sent out
The light gone out enters light guide plate 100 by incidence surface 110, by the multiple reflections of the multiple refraction and bottom surface 140 of top surface 130, from
Light-emitting surface 120 projects.
Above-mentioned backlight module may 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 is can be combined into, 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 utility model, as shown in figure 4, the incidence surface 110 and light-emitting surface 120 of light guide plate 100
Length is identical, and multiple light guide plates 100 combine, and light-emitting surface and incidence surface after combination can be straight line, broken line, curve or arc simultaneously
Line, for example, combination in different light guide plates incidence surface and light-emitting surface can have different gradients, multiple light guide plates
Combination, multiple light-emitting surfaces and incidence surface are combined into broken line simultaneously, for another example, the incidence surface and light-emitting surface of the different light guide plates in combination
Can have different radians, multiple light guide plate combinations, multiple light-emitting surfaces and incidence surface to be combined into camber line or curve simultaneously.
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 effectively reduces backlight module or the installation back of the body so that the device can prevent in the gap of multiple light guide plate combinations
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 described in the utility model, but this practicality
Novel to be not limited to this, backlight module may include multiple light guide plates 100 and a light source 200 (Fig. 4 is shown), can also include
Multiple light guide plates 100 and multiple light sources 200, in addition, can also include amount between the incidence surface 110 and light source 200 of light guide plate 100
Son point glass tube 300, improves the uniformity being radiated on incidence surface.
Although content disclosed above shows the exemplary embodiment of the utility model, it should be noted that not carrying on the back
Under the premise of the scope of the utility model limited from claim, it may be many modifications and change.In addition, although this reality
It can be described or required in the form of individual with novel element, 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, which is characterized in that further include that the light-emitting surface and connection opposite with incidence surface enter light
The top and bottom in face and 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, which is characterized in that the incidence surface is plane of refraction.
3. light guide plate according to claim 2, which is characterized in that be provided with multiple grooves on the incidence surface.
4. light guide plate according to claim 3, which is characterized 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, which is characterized in that the bottom surface is provided with multiple optics sites.
6. light guide plate according to claim 5, which is characterized 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, which is characterized 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, which is characterized in that the bottom surface both side is provided with towards the extension be curved to the inside
Hook structure, for being laid with reflectance coating.
9. a kind of backlight module, which is characterized 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 out 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, which is characterized in that the incidence surfaces of multiple light guide plates combine 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 |
|---|---|---|---|
| CN201721838891.3U CN207867067U (en) | 2017-12-26 | 2017-12-26 | Light guide plate and backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721838891.3U CN207867067U (en) | 2017-12-26 | 2017-12-26 | Light guide plate and backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207867067U true CN207867067U (en) | 2018-09-14 |
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ID=63466476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721838891.3U Active CN207867067U (en) | 2017-12-26 | 2017-12-26 | Light guide plate and backlight module |
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| Country | Link |
|---|---|
| CN (1) | CN207867067U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108037560A (en) * | 2017-12-26 | 2018-05-15 | 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 CN201721838891.3U patent/CN207867067U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108037560A (en) * | 2017-12-26 | 2018-05-15 | 重庆市中光电显示技术有限公司 | Light guide plate and backlight module |
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