CN204557020U - LASER Light Source, backlight module and liquid crystal indicator - Google Patents
LASER Light Source, backlight module and liquid crystal indicator Download PDFInfo
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- CN204557020U CN204557020U CN201520168494.4U CN201520168494U CN204557020U CN 204557020 U CN204557020 U CN 204557020U CN 201520168494 U CN201520168494 U CN 201520168494U CN 204557020 U CN204557020 U CN 204557020U
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- laser
- light source
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 26
- 238000006243 chemical reaction Methods 0.000 claims abstract description 8
- 230000011514 reflex Effects 0.000 claims abstract description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 14
- 239000000843 powder Substances 0.000 claims description 14
- 238000003032 molecular docking Methods 0.000 abstract description 4
- 230000005142 aphototropism Effects 0.000 description 6
- 238000001228 spectrum Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910002114 biscuit porcelain Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
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Abstract
The utility model discloses a kind of LASER Light Source, comprise light guide and some generating lasers, light guide is used for the laser conversion that some generating lasers are launched to become white light, and there is the exiting surface and reflecting surface that are oppositely arranged and the incidence surface being adjacent to exiting surface and reflecting surface, the laser that some generating lasers are launched enters in light guide from incidence surface, and from exiting surface outgoing under the reflex of reflecting surface.The invention also discloses a kind of backlight, liquid crystal indicator.The laser conversion that some generating lasers are launched can be become white light and penetrate from the exiting surface of light guide by LASER Light Source provided by the utility model, it is continuous light source, when during the LASER Light Source lamp bar be continuously made up every docking of some described LASER Light Source is for the backlight module of side entering type, corresponding liquid crystal indicator can be avoided to occur hot issue and lamp shadow problem.
Description
Technical field
The utility model relates to lighting technical field, particularly relates to a kind of LASER Light Source, a kind ofly has the backlight module of this LASER Light Source and a kind of liquid crystal indicator with this backlight module.
Background technology
At present, the backlight module of liquid crystal indicator (as LCD TV, liquid crystal display etc.) can be divided into side entrance back module and down straight aphototropism mode set by the position of backlight.The backlight of common side entrance back module uses LED lamp bar usually, but, LED lamp bar comprises spaced some LED point light source, when LED lamp bar backlight A/P value (wherein, A is the distance of LED point light source exiting surface to liquid crystal indicator vision area, the i.e. light mixing distance of some LED point light source; P is the spacing distance of LED point light source) too small time, corresponding liquid crystal indicator can be caused to occur hotspot (focus) problem and lamp shadow problem.Therefore, provide a kind of novel continuity backlight, real is necessary.
Utility model content
Fundamental purpose of the present utility model is to provide a kind of LASER Light Source, a kind ofly has the backlight module of this LASER Light Source and a kind of liquid crystal indicator with this backlight module, be intended to, for liquid crystal indicator provides a kind of continuity backlight, occur hot issue and lamp shadow problem to avoid liquid crystal indicator.
For achieving the above object, the utility model provides a kind of LASER Light Source, comprise light guide and some generating lasers, described light guide is used for the laser conversion that described some generating lasers are launched to become white light, described light guide has the exiting surface and reflecting surface that are oppositely arranged and the incidence surface being adjacent to described exiting surface and described reflecting surface, the laser that described some generating lasers are launched enters in described light guide from described incidence surface, and from described exiting surface outgoing under the reflex of described reflecting surface.
Preferably, the number of described generating laser is at least one, and the laser that described generating laser is launched is blue light, described light guide is provided with phosphor powder layer on described exiting surface, the blue light that described generating laser is launched and described phosphor powder layer the light launched that is excited be mixed into white light.
Preferably, the number of described generating laser is at least one, and the laser that described generating laser is launched is blue light, described light guide is provided with phosphor powder layer on described incidence surface, the blue light that described generating laser is launched and described phosphor powder layer the light launched that is excited be mixed into white light.
Preferably, the number of described generating laser is at least three, the laser that these three described generating lasers are launched is respectively ruddiness, green glow and blue light, described some generating lasers ruddiness, green glow and the blue light launched mixed light and convert white light in described light guide.
Preferably, described light guide is equipped with reflection horizon at the non-laser incoming position of described reflecting surface and described incidence surface.
Preferably, described reflecting surface comprises the first sub-reflecting surface, the second sub-reflecting surface and the 3rd sub-reflecting surface that connect successively, described first sub-reflecting surface, the second sub-reflecting surface and the 3rd sub-reflecting surface are plane, and the xsect of described reflecting surface is in the opening shape opened towards described exiting surface.
Preferably, described light guide is elongated.
Preferably, described exiting surface is the face of cylinder, and the bearing of trend of described exiting surface straight edge line and the length bearing of trend of described light guide parallel.
In addition, for achieving the above object, the utility model also provides a kind of backlight module, comprises backlight, and described backlight comprises some described LASER Light Source.
In addition, for achieving the above object, the utility model reoffers a kind of liquid crystal indicator, comprises described backlight module.
The laser conversion that some generating lasers are launched can be become white light and penetrate from the exiting surface of light guide by LASER Light Source provided by the utility model, it is continuous light source, so, some described LASER Light Source can be made the LASER Light Source lamp bar of strip (certainly continuously along the length bearing of trend of light guide every docking, the exiting surface of each LASER Light Source is towards same direction), because made LASER Light Source lamp bar is LINEAR CONTINUOUS light source, so corresponding liquid crystal indicator can be avoided to occur hot issue and lamp shadow problem when LASER Light Source lamp bar is used in the backlight module of side entering type, simultaneously without the need to light mixing distance, and save the realization that light mixing distance can be conducive to the narrow frame of corresponding liquid crystal indicator.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model LASER Light Source one embodiment;
Fig. 2 is the enlarged diagram at II place in Fig. 1.
The realization of the utility model object, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
The utility model provides a kind of LASER Light Source.
See figures.1.and.2, in one embodiment, this LASER Light Source comprises light guide 10 and some generating laser (not shown), this light guide 10 becomes white light for the laser conversion of being launched by some generating lasers, and light guide 10 has the exiting surface 11 and reflecting surface 12 that are oppositely arranged and the incidence surface 13 being adjacent to exiting surface 11 and reflecting surface 12.In the present embodiment, the laser that this some generating laser is launched enters in light guide 10 from incidence surface 13, and from exiting surface 11 outgoing (arrow in Fig. 1 represents light) under the reflex of reflecting surface 12.In the present embodiment, this some generating laser can be fixed in the fixture (not shown) being located at incidence surface 13 side of this LASER Light Source, and this fixture is separated setting with light guide 10; Certainly, this some generating laser can also be fixed on light guide 10 in the extension (not shown) that the non-laser incoming position of incidence surface 13 extends to form to the direction away from incidence surface 13, to this, the utility model does not limit.In the present embodiment, described generating laser is preferably laser diode.In the present embodiment, light guide 10 is equipped with reflection horizon 14 at the non-laser incoming position of reflecting surface 12 and incidence surface 13, to make to incide light in light guide 10 only from exiting surface 11 outgoing, this LASER Light Source is avoided to occur light loss phenomenon because of incidence surface 13 or reflecting surface 12 light leak, this LASER Light Source is made to have specular removal, economize energy; Particularly, reflection horizon 14 can for but be not limited to the high reverse--bias material layer that pastes in the outside of the non-laser incoming position of the outside of reflecting surface 12 and incidence surface 13.
The laser conversion that some generating lasers are launched can be become white light and penetrate from the exiting surface 11 of light guide 10 by the LASER Light Source that the present embodiment provides, it is continuous light source, so, some described LASER Light Source can be made the LASER Light Source lamp bar of strip (certainly continuously along the length bearing of trend of light guide 10 every docking, the exiting surface 11 of each LASER Light Source is towards same direction), because made LASER Light Source lamp bar is LINEAR CONTINUOUS light source, so corresponding liquid crystal indicator can be avoided to occur hot issue and lamp shadow problem when LASER Light Source lamp bar is used in the backlight module of side entering type, simultaneously without the need to light mixing distance, and save the realization that light mixing distance can be conducive to the narrow frame of corresponding liquid crystal indicator.
In the present embodiment, the reflecting surface 12 of light guide 10 comprises the first sub-reflecting surface 122 of sub-reflecting surface 121, second and the 3rd sub-reflecting surface 123 connected successively, wherein the first sub-reflecting surface 122 of sub-reflecting surface 121, second and the 3rd sub-reflecting surface 123 are plane, and the xsect of this reflecting surface 12 is in the opening shape opened towards exiting surface 11, to make the luminous energy incided in light guide 10 be reflexed to exiting surface 11 by reflecting surface 12, with from exiting surface 11 outgoing.
It is emphasized that, in another embodiment of the present utility model, the reflecting surface 12 of light guide 10 can also only include two sub-reflectings surface connected, and the xsect of this reflecting surface 12 is V-shaped, similarly, the opening of V-shaped reflecting surface is towards exiting surface 11; And in another embodiment of the present utility model, the reflecting surface 12 of light guide 10 is curved surface, and the center of curvature of reflecting surface 12 is positioned at the side towards exiting surface 11 of reflecting surface 12; Therefore, the shape of the reflecting surface 12 of the utility model light guide 10 is not limited to the shape shown in Fig. 1 and Fig. 2, as long as the luminous energy incided in light guide 10 is reflexed to exiting surface 11 by reflecting surface 12.
In the present embodiment, further, light guide 10 is elongated, and its exiting surface 11 is elongated, to make this LASER Light Source for line source, so that this LASER Light Source is used as the backlight of backlight module.In the present embodiment, exiting surface 11 is preferably the part on the face of cylinder, and the bearing of trend of exiting surface 11 straight edge line and the length bearing of trend of light guide 10 parallel.The LASER Light Source that the present embodiment provides is by collecting the rising angle of emergent light for the exiting surface 11 on the face of cylinder, to make the bright dipping of this LASER Light Source more concentrated, thus several LASER Light Source lamp bar can be disposed side by side in down straight aphototropism mode set, and coordinate driver' s timing to control and realize the function of lining by line scan of down straight aphototropism mode set.Certainly, in other embodiments of the present utility model, the exiting surface 11 of light guide 10 also can be plane.
In the present embodiment, the number of this LASER Light Source generating laser is at least one, and the laser that generating laser is launched is blue light, and light guide 10 is provided with phosphor powder layer 111 on exiting surface 11.In the present embodiment, the light-emitting phosphor in the blue light energy fluorescence excitation bisque 111 that generating laser is launched, and the blue light launched of generating laser and phosphor powder layer 111 the light launched that is excited be mixed into white light.In the present embodiment, particularly, on exiting surface 11, described phosphor powder layer 111 is formed outside the exiting surface 11 that the composite material of fluorescent powder and silica gel can be coated on light guide 10.
It is emphasized that, in another embodiment of the present utility model, also can the phosphor powder layer 111 of light guide 10 be located on the laser incoming position of incidence surface 13, be to make the light incided in light guide 10 blue light that generating laser launches and phosphor powder layer 111 the white light that is mixed into of the light launched of being excited.
In addition, in another embodiment of the present utility model, the number of this LASER Light Source generating laser is at least three, and the laser that these three generating lasers are launched is respectively ruddiness, green glow and blue light; Ruddiness, green glow and the blue light launched when this some generating laser enter after in light guide 10, understand mixed light in light guide 10 and convert white light to, then from exiting surface 11 outgoing.Spectrum due to laser is line spectrum, namely laser has monochromaticity, high, the bright feature of color saturation, therefore the redgreenblue laser white light that mixed light obtains in light guide 10 has the feature of high colour gamut, obviously, when during the LASER Light Source that the present embodiment provides is for the backlight module of liquid crystal indicator, effectively can realize the display of corresponding liquid crystal indicator high colour gamut, thus promote image quality display effect and the image quality taste of corresponding liquid crystal indicator.
The utility model also provides a kind of backlight module.
In one embodiment, this backlight module comprises backlight, and this backlight comprises the LASER Light Source in some previous embodiment.In the present embodiment, this backlight module can be side entrance back module or down straight aphototropism mode set.When this backlight module is side entrance back module, particularly, the LASER Light Source lamp bar of the backlight of this backlight module to be some described LASER Light Source along the length bearing of trend of light guide make every docking continuously strip, this backlight module also comprises light guide plate, the liquid crystal indicator that the white light that LASER Light Source lamp bar sends is incident to for correspondence in light guide plate provides backlight, because LASER Light Source lamp bar is LINEAR CONTINUOUS light source, corresponding liquid crystal indicator can be avoided to occur hot issue and lamp shadow problem.When this backlight module is down straight aphototropism mode set, particularly, the backlight of this backlight module comprises the several LASER Light Source lamp bars be arranged side by side, this backlight module also comprises driver' s timing control module, coordinates the driving of this driver' s timing control module can realize the function of lining by line scan of this down straight aphototropism mode set.
The utility model also provides a kind of liquid crystal indicator.
In one embodiment, this liquid crystal indicator comprises the backlight module in previous embodiment.
These are only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model instructions and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (10)
1. a LASER Light Source, it is characterized in that, described LASER Light Source comprises light guide and some generating lasers, described light guide is used for the laser conversion that described some generating lasers are launched to become white light, described light guide has the exiting surface and reflecting surface that are oppositely arranged and the incidence surface being adjacent to described exiting surface and described reflecting surface, the laser that described some generating lasers are launched enters in described light guide from described incidence surface, and from described exiting surface outgoing under the reflex of described reflecting surface.
2. LASER Light Source as claimed in claim 1, it is characterized in that, the number of described generating laser is at least one, and the laser that described generating laser is launched is blue light, described light guide is provided with phosphor powder layer on described exiting surface, the blue light that described generating laser is launched and described phosphor powder layer the light launched that is excited be mixed into white light.
3. LASER Light Source as claimed in claim 1, it is characterized in that, the number of described generating laser is at least one, and the laser that described generating laser is launched is blue light, described light guide is provided with phosphor powder layer on described incidence surface, the blue light that described generating laser is launched and described phosphor powder layer the light launched that is excited be mixed into white light.
4. LASER Light Source as claimed in claim 1, it is characterized in that, the number of described generating laser is at least three, the laser that these three described generating lasers are launched is respectively ruddiness, green glow and blue light, described some generating lasers ruddiness, green glow and the blue light launched mixed light and convert white light in described light guide.
5. the LASER Light Source as described in any one of Claims 1-4, is characterized in that, described light guide is equipped with reflection horizon at the non-laser incoming position of described reflecting surface and described incidence surface.
6. LASER Light Source as claimed in claim 5, it is characterized in that, described reflecting surface comprises the first sub-reflecting surface, the second sub-reflecting surface and the 3rd sub-reflecting surface that connect successively, described first sub-reflecting surface, the second sub-reflecting surface and the 3rd sub-reflecting surface are plane, and the xsect of described reflecting surface is in the opening shape opened towards described exiting surface.
7. LASER Light Source as claimed in claim 5, it is characterized in that, described light guide is elongated.
8. LASER Light Source as claimed in claim 7, it is characterized in that, described exiting surface is the part on the face of cylinder, and the bearing of trend of described exiting surface straight edge line and the length bearing of trend of described light guide parallel.
9. a backlight module, is characterized in that, described backlight module comprises backlight, and described backlight comprises some LASER Light Source as described in any one of claim 1 to 8.
10. a liquid crystal indicator, is characterized in that, described liquid crystal indicator comprises backlight module as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520168494.4U CN204557020U (en) | 2015-03-24 | 2015-03-24 | LASER Light Source, backlight module and liquid crystal indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520168494.4U CN204557020U (en) | 2015-03-24 | 2015-03-24 | LASER Light Source, backlight module and liquid crystal indicator |
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| Publication Number | Publication Date |
|---|---|
| CN204557020U true CN204557020U (en) | 2015-08-12 |
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| CN201520168494.4U Expired - Fee Related CN204557020U (en) | 2015-03-24 | 2015-03-24 | LASER Light Source, backlight module and liquid crystal indicator |
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| CN (1) | CN204557020U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240749A (en) * | 2015-11-16 | 2016-01-13 | 北京工业大学 | LD coupled optical fiber bundle back lighting module structure |
| WO2018188118A1 (en) * | 2017-04-14 | 2018-10-18 | 广州市新晶瓷材料科技有限公司 | Laser excitation device and excitation method therefor |
| CN109765727A (en) * | 2019-03-28 | 2019-05-17 | 深圳创维－Rgb电子有限公司 | Side-edge type backlight, mould group and laser television |
| WO2020019714A1 (en) * | 2018-07-26 | 2020-01-30 | 深圳市绎立锐光科技开发有限公司 | Illumination device |
| CN111006403A (en) * | 2019-12-11 | 2020-04-14 | 徐瑞 | Solar energy device |
-
2015
- 2015-03-24 CN CN201520168494.4U patent/CN204557020U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240749A (en) * | 2015-11-16 | 2016-01-13 | 北京工业大学 | LD coupled optical fiber bundle back lighting module structure |
| CN105240749B (en) * | 2015-11-16 | 2017-12-22 | 北京工业大学 | LD couples bundling optical fiber back lighting modular structure |
| WO2018188118A1 (en) * | 2017-04-14 | 2018-10-18 | 广州市新晶瓷材料科技有限公司 | Laser excitation device and excitation method therefor |
| WO2020019714A1 (en) * | 2018-07-26 | 2020-01-30 | 深圳市绎立锐光科技开发有限公司 | Illumination device |
| CN109765727A (en) * | 2019-03-28 | 2019-05-17 | 深圳创维－Rgb电子有限公司 | Side-edge type backlight, mould group and laser television |
| CN111006403A (en) * | 2019-12-11 | 2020-04-14 | 徐瑞 | Solar energy device |
| CN111006403B (en) * | 2019-12-11 | 2021-07-06 | 东阳市善水环境工程有限公司 | Solar energy device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 |
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| CF01 | Termination of patent right due to non-payment of annual fee |