CN207164290U - Light guide plate, backlight module and display device - Google Patents
Light guide plate, backlight module and display device Download PDFInfo
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- CN207164290U CN207164290U CN201720004854.6U CN201720004854U CN207164290U CN 207164290 U CN207164290 U CN 207164290U CN 201720004854 U CN201720004854 U CN 201720004854U CN 207164290 U CN207164290 U CN 207164290U
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- guide plate
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Abstract
The utility model provides a kind of light guide plate, backlight module and display device, is related to display technology field, solves the problems, such as that " side bright line " occurs in fringe region picture of the existing display panel in the side of light guide plate.The light guide plate is applied in side entrance back module, it is characterised in that the micro-structural for scattering light is provided with along at least one side of the light guide plate in the direction of the incidence surface perpendicular to the light guide plate.Light guide plate of the present utility model is applied in side entrance back module, and uniform face light is provided for display panel.
Description
Technical field
It the utility model is related to display technology field, more particularly to a kind of light guide plate, backlight module and display device.
Background technology
Display device mainly includes backlight module and display panel, backlight module for display device key part and component it
One, for for the well-off brightness of display panel and the light being evenly distributed, enabling display panel normally to show image.Backlight mould
Group mainly includes light source, light guide plate, blooming piece and frame, is divided into side entering type and straight-down negative two according to the set location of light source
Kind, and side entrance back module due to its required luminescent device number is few, cost is low, thickness of thin the advantages of and be widely used.
The light source of side entrance back module is arranged at light guide plate one or both sides, when the spot light or line source that light source is sent are incident to
Behind light guide plate inside, total reflection occurs inside light guide plate and is spread toward all angles, makes light guide plate uniformly light-emitting.
But in actual applications, the light that the lamp bead in light source close to both ends is sent injects light guide plate, by guide-lighting
After the first reflection of plate two sides, reflection light is intensive, easily forms the superposition of light so that along perpendicular to the light guide plate
Incidence surface direction, the light extraction of the side of light guide plate close to light source part is more, and light guide plate center section and away from light source
Partial light extraction is less, causes fringe region picture of the display panel in the side of light guide plate to form vision pair with other regions
Than there is " side bright line " as shown in Figures 1 to 3.The problem of for " side bright line ", in the prior art generally by leaded light
Guide-lighting dot density, size or the spacing of the close light source part of plate are adjusted, to reduce the reflection light of the side of light guide plate
Density, so as to eliminate " side bright line ".But this adjustment to guide-lighting dot density, size or spacing needs to carry out largely
Attempt and correct, cause time waste and cost consumption.
Utility model content
The purpose of this utility model is to provide a kind of light guide plate, backlight module and display device, is not increasing the time
On the basis of cost, solve existing display panel and occur in fringe region picture of the light guide plate two sides close to light source one end
The problem of " side bright line ".
In order to achieve the above object, the utility model provides following technical scheme：
In a first aspect, the utility model provides a kind of light guide plate, applied in side entrance back module, edge is perpendicular to institute
The direction of the incidence surface of light guide plate is stated, at least one side of the light guide plate is provided with the micro-structural for scattering light.
Compared with prior art, light guide plate provided by the utility model, multiple micro-structurals edges for scattering light are hung down
The side of the light guide plate is directly located in the direction of the incidence surface of the light guide plate so that light can be dissipated by micro-structural
Penetrate, so as to change the light path of the emergent ray of the side of light guide plate so that the lateral emitting of light guide plate is uniform, efficiently solves existing
There is fringe region picture of the display device in the side of light guide plate the problem of " side bright line " occur, improve the picture of display device
Face quality, light guide plate optical design time and design cost are significantly saved.
Second aspect, the utility model provide a kind of backlight module, including：Above-mentioned light guide plate.
The beneficial effect of backlight module provided by the utility model is identical with the beneficial effect of above-mentioned light guide plate, herein not
Repeat again.
The third aspect, the utility model provide a kind of display device, including：Display panel and above-mentioned backlight module,
The backlight module is located at the incidence surface of the display panel.
The beneficial effect of display device provided by the utility model and the beneficial effect all same of above-mentioned light guide plate, herein
Repeat no more.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding to of the present utility model, forms one of the present utility model
Point, schematic description and description of the present utility model is used to explain the utility model, does not form to of the present utility model
Improper restriction.In the accompanying drawings：
Fig. 1 is that the light that lamp bead of the light source close to both ends is sent in the prior art injects the light path schematic diagram of light guide plate；
Fig. 2 is that the light that lamp bead of the light source close to both ends is sent in the prior art injects light guide plate formation " side bright line "
Simulation drawing, wherein, it is the region of display panel generation " side bright line " in oval frame；
Fig. 3 is " side bright line " schematic diagram of the display panel of display device in the prior art；
Fig. 4 is that the light that lamp bead of the light source close to both ends is sent in the utility model embodiment one injects the light path of light guide plate
Schematic diagram；
Fig. 5 is that the light that lamp bead of the light source close to both ends is sent in the utility model embodiment one injects the simulation of light guide plate
Figure；
Fig. 6 is the schematic diagram using display panel after the light guide plate of the utility model embodiment one；
Fig. 7 is the partial schematic diagram of light guide plate in the utility model Fig. 4；
Fig. 8 is the left view of light guide plate in the utility model Fig. 7；
Fig. 9 is the partial schematic diagram of light guide plate in the utility model embodiment two；
Figure 10 is the left view of the light guide plate in the utility model Fig. 9.
Reference：
1- display panel 2- light sources
3- light guide plate 4- sides bright line
5- micro-structurals
Embodiment
To enable the objects, features and advantages of technical scheme that the utility model proposed more obvious understandable, below
Will be with reference to accompanying drawing, the embodiment of the technical scheme proposed to the utility model is clearly and completely described.Obviously, retouched
The embodiment stated is only the part of the embodiment of proposed technical scheme, rather than whole embodiments.Based on this practicality
Embodiment in new, those of ordinary skill in the art are obtained all other on the premise of creative work is not made
Embodiment, belong to the scope of the utility model protection.
Embodiment one
Referring to Fig. 4, a kind of light guide plate is present embodiments provided, applied in side entrance back module, edge is perpendicular to leaded light
The direction of the incidence surface of plate 3, at least one side of light guide plate 3 are provided with the micro-structural 5 for scattering light.
Compared with prior art, the light guide plate that the present embodiment provides, by multiple micro-structurals 5 for scattering light along vertical
One or two side of light guide plate 3 is located in the direction of the incidence surface of light guide plate 3 so that light can be by by micro-structural 5
Scattering, so as to change the light path of the emergent ray of the side of light guide plate 3 so that the lateral emitting of light guide plate 3 is uniform, effectively solves
There is the problem of " side bright line " in fringe region picture of the certainly existing display device in the side of light guide plate 3, refers to Fig. 5~6,
The picture quality of display device is improved, has significantly saved the optical design time of light guide plate 3 and design cost.
The light guide plate that the present embodiment provides can be used for single-sided illumination or bilateral enters the side entrance back module of light.Specifically
Ground, the side of light guide plate 3 is divided into scattering surface area and non-scatter face area.When side entrance back module is single-sided illumination, dissipate
She Mian areas are formed in scattering surface close to the incidence surface of light guide plate 3, non-scatter incidence surface of the face area away from 3 light guide plates, micro-structural 5
Area；When side entrance back module be bilateral enter light when, Liang Ge scattering surfaces area respectively close to light guide plate 3 two incidence surfaces, it is non-dissipate
Penetrate area to be located between Liang Ge scattering surfaces area, micro-structural is formed in Liang Ge scattering surfaces area.
The light sent in view of " side bright line " problem of display panel mainly due to the lamp bead in light source 2 close to both ends
What the side that line injects light guide plate 3 caused the reflection light of light guide plate 3 intensive and formed, closer to light source 2, the side of light guide plate 3
Light extraction it is more, " side bright line " is more serious, it is preferable that from close to incidence surface, to away from incidence surface, micro-structural 5 can be such as Fig. 7
The distribution density in scattering surface area shown in~8 is gradually reduced, and closer to light source 2, scattering is stronger, is efficiently solving " side
While bright line " problem, make the scattering light distribution after micro-structural 5 scatters more uniform, further improve display panel
Image quality, and the number of micro-structural 5 can be reduced, it is cost-effective.
In order that after obtaining the light injection micro-structural 5 that light source 2 is sent, the light by scattering changes in regular so that
Scattering light distribution is more uniform, the image quality of display panel is further improved, it is further preferred that micro-structural 5 is circular arc
Projection.
For processing technology, micro-structural 5 can be formed in a manner of punching press or rolling in light guide plate 3, it is only necessary to existing
Light guide plate 3 carries out further punching press or rolling can obtain micro-structural 5, and processing technology is simple.
Embodiment two
The structure of another light guide plate is present embodiments provided, the structure and embodiment one of the light guide plate 3 are essentially identical, its
Difference is that the distribution mode of micro-structural 5 is different.
The light guide plate 3 that the present embodiment provides, what micro-structural 5 can be as shown in Fig. 9~10 is uniformly distributed in scattering surface area, this
Sample, which is set, can reduce optical design and difficulty of processing.
Embodiment three
A kind of backlight module is present embodiments provided, the backlight module includes light guide plate 3, and the incidence surface of light guide plate 3 is provided with
Light source 2, the light guide plate 3 are the light guide plate of embodiment one or embodiment two.
Compared with prior art, the backlight module that the present embodiment provides applies the light guide plate of embodiment one or embodiment two
3, the light by micro-structural 5 is scattered, and changes the light path of the emergent ray of the side of light guide plate 3, is efficiently solved existing aobvious
There is the problem of " side bright line " in fringe region picture of the showing device in the side of light guide plate 3, improves the picture of display device
Quality, backlight module optical design time and design cost are significantly saved.
Example IV
A kind of display device is present embodiments provided, the display device includes：Display panel and backlight module, backlight mould
For group positioned at the incidence surface of display panel, the backlight module is the backlight module of embodiment three.
Preferably, the angle that the incidence surface of the incidence surface of display panel and light guide plate 3 is formed is α, and 0 ＜ α≤180 °.
Compared with prior art, the display device applications backlight module of embodiment three, the process that the present embodiment provides are micro-
The light of structure 5 is scattered, and is changed the light path of the emergent ray of the side of light guide plate 3, is efficiently solved existing display device and exist
There is the problem of " side bright line " in the fringe region picture of the side of light guide plate 3, improves the picture quality of display device, significantly
Display device optical design time and design cost have been saved degree.
It should be noted that display device in the present embodiment can be liquid crystal panel, Electronic Paper, mobile phone, tablet personal computer,
Any product or part with display function such as television set, display, notebook computer, DPF, navigator.
It is described above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art can readily occur in change in the technical scope that the utility model discloses
Or replace, it should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be with the power
The protection domain that profit requires is defined.
Claims (10)
1. a kind of light guide plate, applied in side entrance back module, it is characterised in that enter light with light guide plate on the light guide plate
In face and the vertical side of exiting surface, at least one side is provided with the micro-structural for scattering light.
2. light guide plate according to claim 1, it is characterised in that the side of the light guide plate include scattering surface area and it is non-dissipate
She Mian areas；
When the side entrance back module is single-sided illumination, the scattering surface area close to the light guide plate incidence surface, it is described
Non-scatter incidence surface of the face area away from the light guide plate, the micro-structural are formed in the scattering surface area；
When the side entrance back module is that bilateral enters light, two respectively close to the light guide plate of two scattering surface areas
Incidence surface, between two scattering surface areas, the micro-structural is formed in two scattering surface areas in the non-scatter area.
3. light guide plate according to claim 2, it is characterised in that from the close incidence surface to the remote incidence surface,
Distribution density of the micro-structural in the scattering surface area is gradually reduced.
4. light guide plate according to claim 2, it is characterised in that the micro-structural is uniformly distributed in the scattering surface area.
5. according to the light guide plate described in any one of Claims 1 to 4, it is characterised in that the micro-structural is the projection of circular arc.
6. according to the light guide plate described in any one of Claims 1 to 4, it is characterised in that the micro-structural is with punching press or rolling
Mode is formed in the light guide plate.
A kind of 7. backlight module, it is characterised in that including：Light guide plate as described in any one of claim 1~6.
8. backlight module according to claim 7, it is characterised in that the incidence surface of the light guide plate is provided with light source.
A kind of 9. display device, it is characterised in that including：Backlight mould described in display panel and any one of claim 7~8
Group, the backlight module are located at the incidence surface of the display panel.
10. display device according to claim 9, it is characterised in that the incidence surface of the display panel and the leaded light
The angle that the incidence surface of plate is formed is α, and 0 ＜ α≤180 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720004854.6U CN207164290U (en) | 2017-01-03 | 2017-01-03 | Light guide plate, backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720004854.6U CN207164290U (en) | 2017-01-03 | 2017-01-03 | Light guide plate, backlight module and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207164290U true CN207164290U (en) | 2018-03-30 |
Family
ID=61708436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720004854.6U Active CN207164290U (en) | 2017-01-03 | 2017-01-03 | Light guide plate, backlight module and display device |
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| CN (1) | CN207164290U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11372283B1 (en) | 2021-03-11 | 2022-06-28 | Radiant Opto-Electronics Corporation | Backlight module and display device |
| WO2022188192A1 (en) * | 2021-03-11 | 2022-09-15 | 瑞仪(广州)光电子器件有限公司 | Backlight module and display device |
| CN115407558A (en) * | 2022-08-30 | 2022-11-29 | 苏州华星光电技术有限公司 | Display device and electronic equipment |
| US11703628B1 (en) | 2022-07-05 | 2023-07-18 | Darwin Precisions Corporation | Light guide structure |
-
2017
- 2017-01-03 CN CN201720004854.6U patent/CN207164290U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11372283B1 (en) | 2021-03-11 | 2022-06-28 | Radiant Opto-Electronics Corporation | Backlight module and display device |
| WO2022188192A1 (en) * | 2021-03-11 | 2022-09-15 | 瑞仪(广州)光电子器件有限公司 | Backlight module and display device |
| US11487155B2 (en) | 2021-03-11 | 2022-11-01 | Radiant Opto-Electronics Corporation | Backlight module and display device |
| US11703628B1 (en) | 2022-07-05 | 2023-07-18 | Darwin Precisions Corporation | Light guide structure |
| CN115407558A (en) * | 2022-08-30 | 2022-11-29 | 苏州华星光电技术有限公司 | Display device and electronic equipment |
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