CN204477808U - Backlight source module and liquid crystal display module - Google Patents
Backlight source module and liquid crystal display module Download PDFInfo
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- CN204477808U CN204477808U CN201520157494.4U CN201520157494U CN204477808U CN 204477808 U CN204477808 U CN 204477808U CN 201520157494 U CN201520157494 U CN 201520157494U CN 204477808 U CN204477808 U CN 204477808U
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Abstract
The utility model provides a kind of backlight source module and liquid crystal display module, comprise at least one light source and a light guide plate, the central area outgoing high color temperature light of described light source, opposed central regions is the low colour temperature light of region outgoing of wide-angle bright dipping, the incidence surface of described light guide plate is towards the light-emitting area of described light source, described incidence surface is arcuate surface, and the radian on surface corresponding with described high color temperature light in described arcuate surface is less than the radian on surface corresponding with described low colour temperature light on described curved surfaces, thus the incident angle that high color temperature light that light source sends and low colour temperature light enter light guide plate can be changed, and then the position of high color temperature light and the outgoing from light guide plate of low colour temperature light can be adjusted, a part of low colour temperature light and gold-tinted is made to do sth. in advance outgoing in the region close to light source, the exiting surface eliminating light guide plate is to a certain extent in the partially blue problem of the field color close to light source, and the aberration problem of display panels.
Description
Technical field
The utility model relates to technical field of liquid crystal display, more particularly, relates to a kind of backlight source module and liquid crystal display module.
Background technology
Existing liquid crystal display module, comprise reflector plate, at least one light source, light guide plate and display panels, the incidence surface of light guide plate towards the light-emitting area of light source, wherein, the direction of light of light guide plate for changing light source and sending, to improve glorious degrees and the brightness uniformity of display panels.
But, as shown in Figure 1, incidence surface due to existing light guide plate 112 is plane, therefore, the exiting surface of light guide plate can be made partially yellow at the light of one end institute outgoing away from light source, thus make light guide plate 112 partially blue in the color close to light source 111 region, partially yellow in the color away from light source 111 region, thus cause the display frame of display panels 113 to have aberration.
Utility model content
In view of this, the utility model provides a kind of backlight source module and liquid crystal display module, has the problem of aberration with the display frame solving display panels of the prior art.
For achieving the above object, the utility model provides following technical scheme:
A kind of backlight source module, comprise at least one light source and a light guide plate, the central area outgoing high color temperature light of described light source, opposed central regions is the low colour temperature light of region outgoing of wide-angle bright dipping, the incidence surface of described light guide plate is towards the light-emitting area of described light source, described incidence surface is arcuate surface, and the radian on surface corresponding with described high color temperature light in described arcuate surface is less than the radian on surface corresponding with described low colour temperature light on described curved surfaces.
Preferably, the incidence surface of described light guide plate is the arcuate surface of the light-emitting area direction projection to described light source.
Preferably, the tangent line of each point on the circular arc of described light guide plate incidence surface has different slopes.
Preferably, the tangent line of the incidence surface of the light guide plate that the different light-emitting zones in described light source luminescent face are corresponding has different slopes.
A kind of liquid crystal display module, comprises backlight source module as above, and display panels.
Preferably, the incidence surface of described light guide plate is the arcuate surface of the light-emitting area direction projection to described light source.
Preferably, the tangent line of each point on the circular arc of described light guide plate incidence surface has different slopes.
Preferably, the tangent line of the incidence surface of the light guide plate that the different light-emitting zones in described light source luminescent face are corresponding has different slopes.
Compared with prior art, technical scheme provided by the utility model has the following advantages:
Backlight source module provided by the utility model and liquid crystal display module, the central area outgoing high color temperature light of light source, opposed central regions is the low colour temperature light of region outgoing of wide-angle bright dipping, the incidence surface of light guide plate is arranged towards the light-emitting area of light source, incidence surface due to light guide plate is the surface of circular arc, and the radian on surface corresponding with the high color temperature light of light source outgoing in arcuate surface is less than the radian on the surface corresponding with low colour temperature light, therefore, the incident angle that high color temperature light that light source sends and low colour temperature light enter light guide plate can be changed, thus the position of high color temperature light and the outgoing from light guide plate of low colour temperature light can be adjusted, a part of low colour temperature light and gold-tinted is made to do sth. in advance outgoing in the region close to light source, the exiting surface eliminating light guide plate is to a certain extent in the partially blue problem of the field color close to light source, and the aberration problem of display panels.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the index path of the light guide plate of backlight source module in prior art;
The structural representation of a kind of backlight source module that Fig. 2 provides for an embodiment of the present utility model, this figure display light source and light guide plate, miscellaneous part omits and does not show;
The schematic perspective view of a kind of light guide plate that Fig. 3 provides for the utility model;
The index path of the light guide plate that Fig. 4 provides for the utility model.
Detailed description of the invention
As described in background, the incidence surface of existing light guide plate is plane, therefore, the light-emitting zone of backlight source module and liquid crystal display module can be made partially blue in the color close to source region, partially yellow in the color away from source region, thus cause the display frame of display panels to have aberration.
Based on this, the utility model provides a kind of backlight source module, to overcome the problems referred to above that prior art exists, comprise: at least one light source and a light guide plate, the central area outgoing high color temperature light of described light source, opposed central regions is the low colour temperature light of region outgoing of wide-angle bright dipping, the incidence surface of described light guide plate is towards the light-emitting area of described light source, described incidence surface is arcuate surface, and the radian on surface corresponding with described high color temperature light in described arcuate surface is less than the radian on surface corresponding with described low colour temperature light on described curved surfaces.
The utility model additionally provides a kind of liquid crystal display module, comprises backlight source module as above, and display panels.
Backlight source module provided by the utility model and liquid crystal display module, the central area outgoing high color temperature light of light source, opposed central regions is the low colour temperature light of region outgoing of wide-angle bright dipping, the incidence surface of light guide plate is arranged towards the light-emitting area of light source, incidence surface due to light guide plate is the surface of circular arc, and the radian on surface corresponding with the high color temperature light of light source outgoing in arcuate surface is less than the radian on the surface corresponding with low colour temperature light, therefore, the incident angle that high color temperature light that light source sends and low colour temperature light enter light guide plate can be changed, thus the position of high color temperature light and the outgoing from light guide plate of low colour temperature light can be adjusted, a part of low colour temperature light and gold-tinted is made to do sth. in advance outgoing in the region close to light source, the exiting surface eliminating light guide plate is to a certain extent in the partially blue problem of the field color close to light source, and the aberration problem of display panels.
Be more than core concept of the present utility model, for enabling above-mentioned purpose of the present utility model, feature and advantage become apparent more, are described in detail detailed description of the invention of the present utility model below in conjunction with accompanying drawing.
Set forth a lot of detail in the following description so that fully understand the utility model, but the utility model can also adopt other to be different from alternate manner described here to implement, those skilled in the art can when doing similar popularization without prejudice to when the utility model intension, and therefore the utility model is by the restriction of following public specific embodiment.
Secondly, the utility model is described in detail in conjunction with schematic diagram, when describing the utility model embodiment in detail; for ease of explanation; represent that the profile of device architecture can be disobeyed general ratio and be made partial enlargement, and described schematic diagram is example, it should not limit the scope of the utility model protection at this.In addition, the three-dimensional space of length, width and the degree of depth should be comprised in actual fabrication.
An embodiment of the present utility model provides a kind of backlight source module, as shown in Figure 2, comprise at least one light source 401 and a light guide plate 402, wherein, light source 401 is LED (Light-Emitting Diode, light emitting diode) light source, the central area outgoing high color temperature light i.e. light of partially blue color of light source 401, opposed central regions is the region outgoing low colour temperature light i.e. light of partially yellow color of wide-angle bright dipping, the incidence surface of light guide plate 402 is towards the light-emitting area of light source 401, the incidence surface of light guide plate 402 is arcuate surface, be preferably the arcuate surface to light source 401 direction projection, and the radian on surface corresponding with high color temperature light in this arcuate surface is less than the radian on surface corresponding with low colour temperature light on curved surfaces, wherein, the schematic perspective view of light source 401 and light guide plate 402 as shown in Figure 3.
Because the manufacture craft of fluorescent material in LED light source is different, therefore, the influence degree that the lighting angle of LED light source changes color is also different.Generally be divided into two classes, the glow color of a type LED light sources is comparatively large by the variable effect of lighting angle, namely when lighting angle increases, glow color is partially yellow, the glow color of another kind of LED light source is less by the variable effect of lighting angle, and namely when lighting angle increases, glow color is partially blue.Light source 401 in the present embodiment is preferably glow color affects a larger type LED light sources by lighting angle.
In the present embodiment, incidence surface due to light guide plate 402 is arcuate surface, and the tangent line of each point has different slopes on circular arc, therefore, the tangent line of the incidence surface of the light guide plate 402 that the different light-emitting zones of light source 401 are corresponding has different slopes, as shown in Figure 2, and the tangent line 10 of the corresponding incidence surface of peripheral position 1 of light source 401, the tangent line 20 of the corresponding incidence surface in center 2, and tangent line 10 and 20 has different slopes.
Because the tangent line of the incidence surface of light guide plate 402 corresponding to the different light-emitting zones of light source 401 has different slopes, therefore, the light that the different light-emitting zones that can change light source 401 are launched enters the incident angle of light guide plate 402, and, radian due to surface corresponding with high color temperature light in arcuate surface is less than the radian on surface corresponding with low colour temperature light on curved surfaces, therefore, the impact of circular arc incidence surface on high color temperature light and blue light of light guide plate 402 is less, larger on the impact of low colour temperature light and gold-tinted, that is, from light guide plate 402, the Exit positions of the gold-tinted of outgoing changes larger, a part of gold-tinted is made to do sth. in advance outgoing in the position close to light source 401, thus the exiting surface eliminating light guide plate 402 is to a certain extent in the partially blue problem of the field color close to light source 401.
As shown in Figure 4, compared with the light guide plate being plane with existing incidence surface, after the light of light source 401 outgoing in the present embodiment enters light guide plate 402, because the Exit positions of low colour temperature light and gold-tinted changes larger, the Exit positions of high color temperature light and blue light changes less, therefore, some yellow light Y1 can outgoing on the left of blue light B, namely can at light guide plate 402 in the region outgoing close to light source 401, can in the right side outgoing of blue light B after another part gold-tinted Y2 is reflected, therefore, the exiting surface solving light guide plate 402 is partially blue in the field color close to light source 401, partially yellow in the field color away from light source 401, and cause the display frame of display panels 403 to have the problem of aberration.
The backlight source module that the present embodiment provides, the central area outgoing high color temperature light of light source, opposed central regions is the low colour temperature light of region outgoing of wide-angle bright dipping, the incidence surface of light guide plate is arranged towards the light-emitting area of light source, incidence surface due to light guide plate is the surface of circular arc, and the radian on surface corresponding with the high color temperature light of light source outgoing in arcuate surface is less than the radian on the surface corresponding with low colour temperature light, therefore, high color temperature light and low colour temperature light in the light that LED light source sends can be changed and enter the incident angle of light guide plate, thus the position of high color temperature light and the outgoing from light guide plate of low colour temperature light can be adjusted, a part of gold-tinted is made to do sth. in advance outgoing in the region close to light source, the exiting surface eliminating light guide plate is to a certain extent in the partially blue problem of the field color close to light source.
Of the present utility modelly embodiment still provides a kind of liquid crystal display module, this liquid crystal display module comprises the backlight source module that above-described embodiment provides, the central area outgoing high color temperature light of light source in this backlight source module, opposed central regions is the low colour temperature light of region outgoing of wide-angle bright dipping, the incidence surface of light guide plate is arranged towards the light-emitting area of light source, incidence surface due to light guide plate is the surface of circular arc, and the radian on surface corresponding with the high color temperature light of light source outgoing in arcuate surface is less than the radian on the surface corresponding with low colour temperature light, therefore, high color temperature light and low colour temperature light in the light that LED light source sends can be changed and enter the incident angle of light guide plate, thus the position of high color temperature light and the outgoing from light guide plate of low colour temperature light can be adjusted, a part of gold-tinted is made to do sth. in advance outgoing in the region close to light source, eliminate the aberration of display panels to a certain extent.
In this description, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (8)
1. a backlight source module, it is characterized in that, comprise at least one light source and a light guide plate, the central area outgoing high color temperature light of described light source, opposed central regions is the low colour temperature light of region outgoing of wide-angle bright dipping, the incidence surface of described light guide plate is towards the light-emitting area of described light source, and described incidence surface is arcuate surface, and the radian on surface corresponding with described high color temperature light in described arcuate surface is less than the radian on surface corresponding with described low colour temperature light on described curved surfaces.
2. backlight source module according to claim 1, is characterized in that, the incidence surface of described light guide plate is the arcuate surface of the light-emitting area direction projection to described light source.
3. backlight source module according to claim 2, is characterized in that, the tangent line of each point on the circular arc of described light guide plate incidence surface has different slopes.
4. backlight source module according to claim 3, is characterized in that, the tangent line of the incidence surface of the light guide plate that the different light-emitting zones in described light source luminescent face are corresponding has different slopes.
5. a liquid crystal display module, is characterized in that, comprises backlight source module according to claim 1, and display panels.
6. liquid crystal display module according to claim 5, is characterized in that, the incidence surface of described light guide plate is the arcuate surface of the light-emitting area direction projection to described light source.
7. liquid crystal display module according to claim 6, is characterized in that, the tangent line of each point on the circular arc of described light guide plate incidence surface has different slopes.
8. liquid crystal display module according to claim 7, is characterized in that, the tangent line of the incidence surface of the light guide plate that the different light-emitting zones in described light source luminescent face are corresponding has different slopes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520157494.4U CN204477808U (en) | 2015-03-19 | 2015-03-19 | Backlight source module and liquid crystal display module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520157494.4U CN204477808U (en) | 2015-03-19 | 2015-03-19 | Backlight source module and liquid crystal display module |
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| CN204477808U true CN204477808U (en) | 2015-07-15 |
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| CN201520157494.4U Active CN204477808U (en) | 2015-03-19 | 2015-03-19 | Backlight source module and liquid crystal display module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106646724A (en) * | 2017-02-08 | 2017-05-10 | 京东方科技集团股份有限公司 | Light guide plate, preparation method thereof, backlight source module and display device |
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2015
- 2015-03-19 CN CN201520157494.4U patent/CN204477808U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106646724A (en) * | 2017-02-08 | 2017-05-10 | 京东方科技集团股份有限公司 | Light guide plate, preparation method thereof, backlight source module and display device |
| CN106646724B (en) * | 2017-02-08 | 2019-10-01 | 京东方科技集团股份有限公司 | A kind of light guide plate and preparation method thereof, backlight source module, display device |
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