CN1629690A - Light source device and backlight module thereof - Google Patents
Light source device and backlight module thereof Download PDFInfo
- Publication number
- CN1629690A CN1629690A CN 200310117569 CN200310117569A CN1629690A CN 1629690 A CN1629690 A CN 1629690A CN 200310117569 CN200310117569 CN 200310117569 CN 200310117569 A CN200310117569 A CN 200310117569A CN 1629690 A CN1629690 A CN 1629690A
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- supply apparatus
- light
- light supply
- coupling device
- fiber coupling
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- Optical Couplings Of Light Guides (AREA)
Abstract
A light source device includes multiple point light sources with at least two luminous colors and a fiber-coupling device constituting multiple input ends and output ends, said input ends are set corresponding to said multiple point light sources. Said device can emit uniform color variable lights.
Description
[technical field]
The present invention relates to a kind of light supply apparatus and adopt the module backlight of this light supply apparatus.
[background technology]
Module backlight is widely used in display device, as LCD, mobile phone etc., but many display device are non-autoluminescences to be shown, main passing through or obstructedly come to realize Presentation Function by control light that external light source sends, therefore need corresponding backlight or preceding optical mode group, this backlight or preceding optical mode group can realize Presentation Function with photoconduction that external light source sent to display panel.
Seeing also Fig. 1, is the side schematic view of a kind of prior art module backlight.This module 1 backlight comprises a light guide plate 10 and a light source 11, and this light guide plate 10 comprises an incidence surface 12, an exiting surface 13, and these light source 11 relative these incidence surfaces 12 are provided with.The effect of this light guide plate 10 is to guide the direction of propagation of injecting the light of light guide plate 10 through incidence surface 12, makes the exiting surface 13 even outgoing of light from light guide plate 10.But this module 1 backlight can only send a kind of light of color, when being applied to mobile phone etc. and needing the display device of conversion color, can not satisfy the demand of variable display color.
Seeing also Fig. 2, is a kind of side schematic view that is applied to the module backlight of present variable display color mobile phone.This module 2 backlight comprises a light guide plate 20 and a plurality of pointolite 211,212,213,214,215,216, this light guide plate 20 comprises two relative incidence surface 22,24 and exiting surfaces 23, these a plurality of pointolites the 211,212,213,214,215, the 216th, the light emitting diode of different colors coloured silk (Light Emitting Diode, LED), its these two incidence surfaces, 22,24 settings relatively respectively.During work, according to the requirement of different display colors, select to open corresponding pointolite, thereby reach the function of variable display color by electronic signal.But, at display color more for a long time, the also corresponding increase of needed pointolite makes cost raise, and the different display colors of this module 2 backlight are that pointolite 211,212,213,214,215,216 by diverse location sends, and the display effect of entire aphototropism mould 2 is also inhomogeneous.
[summary of the invention]
In order to overcome the high shortcoming of the variable bright dipping color light of prior art source apparatus cost, the invention provides the low variable bright dipping color light source apparatus of a kind of cost.
In order to overcome the high shortcoming of the variable bright dipping color of prior art module cost backlight, the invention provides the low variable bright dipping color module backlight of a kind of cost.
The technical scheme that technical solution problem of the present invention is adopted is: a kind of light supply apparatus, the a plurality of pointolites and the fiber coupling device that comprise at least two kinds of different colors coloured silks, this fiber coupling device comprises a plurality of input ends and output terminal, these a plurality of pointolite settings relatively of these a plurality of input ends.
The technical scheme that technical solution problem of the present invention is adopted is: a kind of module backlight is provided, comprise a light supply apparatus and a light guide plate, this light guide plate comprises an incidence surface, this light supply apparatus comprises a plurality of pointolites and a fiber coupling device of at least two kinds of different colors coloured silks, this fiber coupling device comprises a plurality of input ends and output terminal, these a plurality of pointolite settings relatively of these a plurality of input ends, these a plurality of output terminals this incidence surface relatively are provided with.
Compare with prior art, the invention has the beneficial effects as follows: utilize fiber coupling device that pointolite is formed a plurality of light source incident light guide plate, make incident light more even, help the even bright dipping of module backlight; Select through electronic signal, the light source that can be combined into different color enters light guide plate, produces the module backlight of variable bright dipping color; And the present invention only uses each one of the pointolite of different colors coloured silk, can send the light of various colors, avoids using the pointolite of numerous different colors, thereby has saved cost.
[description of drawings]
Fig. 1 is the side schematic view of a kind of prior art module backlight.
Fig. 2 is the side schematic view of another kind of prior art module backlight.
Fig. 3 is the side schematic view of the present invention's module first embodiment backlight.
Fig. 4 is the front schematic view of the present invention's module first embodiment backlight.
Fig. 5 is the front schematic view of the present invention's module second embodiment backlight.
[embodiment]
Please together consulting Fig. 3 and Fig. 4, is respectively the side schematic view and the front schematic view of the present invention's module first embodiment backlight.This module 3 backlight comprises a light guide plate 30 and a light supply apparatus 31, this light guide plate 30 comprises an incidence surface 32 and an exiting surface 33, this light supply apparatus 31 comprises a plurality of pointolites 311,312,313,314 and fiber coupling device 34, these a plurality of pointolites the 311,312,313, the 314th are made up of the light emitting diode of different colors coloured silk, and it comprises blue LED 311, red light emitting diodes 312, white light-emitting diode 313 and green LED 314.This fiber coupling device 34 is multi-to-multi fiber couplers, is to fuse through high temperature after many optical fiber are twined to form, and this fiber coupling device 34 comprises input end 341,342,343,344, corresponds respectively to pointolite 311,312,313,314; This fiber coupling device 34 also comprises a plurality of output terminals 345,346,347,348, and the incidence surface 32 of these a plurality of output terminal 345,346,347,348 relative light guide plate 30 is provided with, and is lens arrangement.This fiber coupling device 34 is to make with the highly purified glass material of reeling off raw silk from cocoons, and also can make with heat resistant plastice, and its fiber radius is less than 1000 microns.It wherein between the input end 341,342,343,344 of this pointolite 311,312,313,314 and fiber coupling device 34 design of close induction type coupling light source.
After light sends from one or more of pointolite 311,312,313,314, entering fiber coupling device 34 through input end 341,342,343,344 respectively is coupled, in the process lens arrangement effect of output terminal 345,346,347,348 places, light is converged through incidence surface 32 enter light guide plate 30, and, finally form planar light from exiting surface 33 outgoing through light guide plate 30 conversions.Because the light that sends from pointolite 311,312,313,314 enters light guide plate 30 at incidence surface 32 from a plurality of branches, be equivalent to and form a plurality of pointolites, make incident light more even; In addition, the light that coupling device can send Different Light effectively is coupled, and a plurality ofly goes out luminous point color, purity, brightness etc. and can reach higher consistance through what be coupled out, makes that the light guide plate bright dipping is more even, and color is abundanter.Control electronic signal by a drive unit (figure does not show), select the pointolite of different color color light to be imported the module backlight 3 that can form variable bright dipping color in the light guide plate 30; Can select the bright degree of different color light source in addition, utilize the shading value of different color light source, be combined into the light source of other color, make that the colour changeable of module 3 backlight is abundanter.
Seeing also Fig. 5, is the front schematic view of the present invention's module second embodiment backlight.This module 4 backlight comprises a light guide plate 40 and a light supply apparatus 41, this light guide plate 40 comprises an incidence surface 42 and an exiting surface 43, this light supply apparatus 41 comprises a plurality of pointolites 411,412,413 and fiber coupling device 44, these a plurality of pointolites the 411,412, the 413rd are made up of the light emitting diode of different colors coloured silk, and it comprises blue LED 411, red light emitting diodes 412, green LED 413.This fiber coupling device 44 is by a plurality of one-to-many fiber couplers 441,442,443 form, be many optical fiber to be twined after high temperature fuses forms, this fiber coupler 441,442,443 comprise an input end 4411 respectively, 4421,4431, correspond respectively to pointolite 411,412,413, this input end 4411,4421,4,431 three branches of each self-forming again, the a certain zone of the incidence surface 42 of each color branch and other corresponding light guide plate 40 of two kinds of different color branches, pass through fiber coupler 445 more respectively at incidence surface 42 places, 446,447 couplings form certain color light, these a plurality of fiber couplers 445,446, the incidence surface 42 of the relative light guide plate 40 of 447 output terminals is provided with, and is lens arrangement.This fiber coupling device 44 is to make with the highly purified glass material of reeling off raw silk from cocoons, and also can make with heat resistant plastice, and its fiber radius is less than 1000 microns.It wherein between this pointolite 411,412,413 and the input end 4411,4421,4431 design of close induction type coupling light source.
Module backlight of the present invention is not limited to said structure, and for example: this light guide plate shape also can be wedge shape, bending shape or arc; The output terminal of this light-conductive optic fibre also can be a groove structure; This light source also can be a laser diode; For emitting brightness and the uniformity coefficient that strengthens this module backlight, can diffuser plate and prismatic lens be set at the exiting surface place of contiguous light guide plate.
Claims (10)
1. light supply apparatus, the a plurality of pointolites that comprise at least two kinds of different colors coloured silks, it is characterized in that: this light supply apparatus also comprises a fiber coupling device, and this fiber coupling device comprises a plurality of input ends and output terminal, these a plurality of pointolite settings relatively of these a plurality of input ends.
2. light supply apparatus according to claim 1 is characterized in that: this pointolite is two kinds among red light source, blue-light source, green light source or the white light source at least.
3. light supply apparatus according to claim 2 is characterized in that: this pointolite is two kinds among red light emitting diodes, blue LED, green LED or the white light-emitting diode at least.
4. light supply apparatus according to claim 2 is characterized in that: this pointolite is two kinds among red laser diode, blue laser diode, green laser diode or the white laser diode at least.
5. light supply apparatus according to claim 1 is characterized in that: this fiber coupling device is made up of a plurality of one-to-many fiber couplers or multi-to-multi fiber coupler.
6. light supply apparatus according to claim 1 is characterized in that: this fiber coupling device is to be made by reel off raw silk from cocoons material or heat resistant plastice optical fiber of glass.
7. light supply apparatus according to claim 1 is characterized in that: the fiber radius of this fiber coupling device is less than 1000 microns.
8. light supply apparatus according to claim 1 is characterized in that: the output terminal of this fiber coupling device is lens arrangement or groove structure.
9. light supply apparatus according to claim 1 is characterized in that: this light supply apparatus also comprises a drive unit, and this drive unit is used for controlling electronic signal.
10. module backlight, comprise a light supply apparatus and a light guide plate, this light guide plate comprises an incidence surface, this light supply apparatus comprises a plurality of pointolites of at least two kinds of different colors coloured silks, it is characterized in that: this light supply apparatus also comprises a fiber coupling device, this fiber coupling device comprises a plurality of input ends and output terminal, these a plurality of pointolite settings relatively of these a plurality of input ends, and these a plurality of output terminals this incidence surface relatively are provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310117569 CN1629690A (en) | 2003-12-19 | 2003-12-19 | Light source device and backlight module thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310117569 CN1629690A (en) | 2003-12-19 | 2003-12-19 | Light source device and backlight module thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1629690A true CN1629690A (en) | 2005-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200310117569 Pending CN1629690A (en) | 2003-12-19 | 2003-12-19 | Light source device and backlight module thereof |
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| CN (1) | CN1629690A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007046100A2 (en) * | 2005-10-18 | 2007-04-26 | Oms Displays Ltd. | Device and method for optical resizing and backlighting |
| US7773849B2 (en) | 2004-12-14 | 2010-08-10 | Oms Displays Ltd. | Device and method for optical resizing and backlighting |
| WO2014067192A1 (en) * | 2012-11-02 | 2014-05-08 | 深圳市华星光电技术有限公司 | Backlight module and display device |
| CN103883928A (en) * | 2012-12-19 | 2014-06-25 | 鸿富锦精密工业（深圳）有限公司 | Backlight module |
| US8860910B2 (en) | 2012-11-02 | 2014-10-14 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Backlight module and display apparatus |
| CN104747975A (en) * | 2013-12-30 | 2015-07-01 | 鸿富锦精密工业（深圳）有限公司 | Laser diode light source device and backlight module thereof |
| CN105652517A (en) * | 2016-01-22 | 2016-06-08 | 四川长虹电器股份有限公司 | Lateral entrance type backlight module based on laser light source |
| CN106249482A (en) * | 2016-10-11 | 2016-12-21 | 京东方科技集团股份有限公司 | Luminescence component, backlight and display device |
-
2003
- 2003-12-19 CN CN 200310117569 patent/CN1629690A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7773849B2 (en) | 2004-12-14 | 2010-08-10 | Oms Displays Ltd. | Device and method for optical resizing and backlighting |
| WO2007046100A2 (en) * | 2005-10-18 | 2007-04-26 | Oms Displays Ltd. | Device and method for optical resizing and backlighting |
| WO2007046100A3 (en) * | 2005-10-18 | 2007-06-14 | Oms Displays Ltd | Device and method for optical resizing and backlighting |
| WO2014067192A1 (en) * | 2012-11-02 | 2014-05-08 | 深圳市华星光电技术有限公司 | Backlight module and display device |
| US8860910B2 (en) | 2012-11-02 | 2014-10-14 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Backlight module and display apparatus |
| CN103883928A (en) * | 2012-12-19 | 2014-06-25 | 鸿富锦精密工业（深圳）有限公司 | Backlight module |
| CN104747975A (en) * | 2013-12-30 | 2015-07-01 | 鸿富锦精密工业（深圳）有限公司 | Laser diode light source device and backlight module thereof |
| CN105652517A (en) * | 2016-01-22 | 2016-06-08 | 四川长虹电器股份有限公司 | Lateral entrance type backlight module based on laser light source |
| CN106249482A (en) * | 2016-10-11 | 2016-12-21 | 京东方科技集团股份有限公司 | Luminescence component, backlight and display device |
| CN106249482B (en) * | 2016-10-11 | 2019-08-23 | 京东方科技集团股份有限公司 | Luminescence component, backlight and display device |
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