CN100357810C - Light source system and backlight module - Google Patents
Light source system and backlight module Download PDFInfo
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- CN100357810C CN100357810C CNB031399150A CN03139915A CN100357810C CN 100357810 C CN100357810 C CN 100357810C CN B031399150 A CNB031399150 A CN B031399150A CN 03139915 A CN03139915 A CN 03139915A CN 100357810 C CN100357810 C CN 100357810C
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- light
- source system
- guiding device
- sidewall
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- 238000007598 dipping method Methods 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 238000007747 plating Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- 208000002925 dental caries Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 230000001795 light effect Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
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Abstract
The present invention relates to a light source system. The present invention comprises at least one light source and a light guide device, wherein the light guide device is in a cavity structure and comprises a plurality of side walls, one side wall is provided with a plurality of holes, the cavity is provided with a reflecting surface, and the light source is arranged in the cavity.
Description
[technical field]
The present invention relates to a kind of light-source system and adopt the module backlight of this light-source system.
[background technology]
Liquid crystal layer in the LCD can not autoluminescence, so LCD needs corresponding backlight or preceding optical mode group that the photoconduction that light source sent is realized Presentation Function to this display panels.
See also Fig. 1, a kind of prior art module 1 backlight comprises a light guide plate 10 and two light sources 11,12, this light guide plate 10 comprises at least one incidence surface 13, this two light source 11,12 is arranged on the pointolite of these light guide plate 10 incidence surfaces 13 1 sides, as LED (LightEmitting Diode, light emitting diode).Because light source 11,12 has a narrower lighting angle, these two light sources, 11,12 light that sent concentrate in this lighting angle scope, again because light is along rectilinear propagation in same medium, so it is luminous less that light guide plate is positioned at the extraneous zone of light source 11,12 lighting angles, form blanking bar zone A, B, C, make light inhomogeneous through repeatedly reflecting, reflect the back outgoing in light guide plate 10, influenced the outgoing light homogeneity of module 1 backlight and adopted the display effect of the LCD (figure do not show) of this module 1 backlight.
The existing solution of the problems referred to above is to increase the pointolite number in light guide plate incidence surface one side, form a plurality of incident light sources, dwindle the blanking bar zone, make light even through repeatedly reflecting, reflect the back outgoing in light guide plate, thereby dwindle blanking bar, but the method makes module manufacture difficulty backlight increase, and also makes production cost improve and increase the pointolite number.
[summary of the invention]
In order to overcome the shortcoming that the prior art light guide plate is easy to generate the blanking bar phenomenon, the invention provides a kind of light-source system that can dwindle light guide plate blanking bar zone.
In order to overcome the uneven shortcoming of prior art module bright dipping backlight, the invention provides a kind of emitting uniform module backlight.
The technical scheme that technical solution problem of the present invention is adopted is: a kind of light-source system is provided, comprises two pointolites and a guiding device.This guiding device is a cavity body structure.This guiding device comprises a plurality of sidewalls, and wherein a sidewall is the bright dipping sidewall, and this bright dipping sidewall is provided with a plurality of holes.These a plurality of sidewalls are provided with reflecting surface, and these two pointolites are arranged in this cavity.
The technical scheme that technical solution problem of the present invention is adopted is: a kind of light-source system is provided, comprise two pointolites and a guiding device, this guiding device is a transparent body, comprise a plurality of outside surfaces, and this guiding device outside surface is provided with reflecting surface, one of them reflecting surface leaves a plurality of transmission regions, and these two pointolites are arranged in this guiding device.
The technical scheme that technical solution problem of the present invention is adopted is: a kind of module backlight is provided, comprise a light guide plate and at least one light-source system, this light guide plate comprises at least one incidence surface, this at least one light-source system comprises an at least one light source and a guiding device, and this guiding device is a cavity body structure, comprises a plurality of sidewalls, wherein a sidewall is provided with a plurality of holes, the incidence surface of a plurality of holes and this light guide plate is oppositely arranged, and this cavity is provided with reflecting surface, and this at least one light source is arranged in this cavity.
Compared with prior art, the invention has the beneficial effects as follows: light-source system of the present invention make light in guiding device through repeatedly the reflection, at last from the outgoing of a plurality of holes, do not need additionally to increase number of light sources and reduce blanking bar, make and make simply, can dwindle the blanking bar zone again, strengthen the light effect that of module backlight.
[description of drawings]
Fig. 1 is the synoptic diagram of a kind of prior art module backlight.
Fig. 2 is the schematic perspective view of light-source system first embodiment of the present invention.
Fig. 3 is the diagrammatic cross-section of light-source system second embodiment of the present invention.
Fig. 4 is the schematic perspective view of light-source system the 3rd embodiment of the present invention.
Fig. 5 is the diagrammatic cross-section of light-source system the 4th embodiment of the present invention.
Fig. 6 is the schematic perspective view of the present invention's module backlight.
[embodiment]
Seeing also Fig. 2, is the schematic perspective view of light-source system first embodiment of the present invention.This light-source system 2 comprises a guiding device 20 and two light sources 21,22.This guiding device 20 is strip cavitys, this guiding device 20 comprises the sidewall 24,28 of at least two sidewall 25, the 26 relative settings with two that are provided with relatively, light source 21 adjacent sidewall 25 are provided with, and light source 22 adjacent sidewall 26 are provided with, this guiding device 20 is provided with reflecting surface (figure indicates), and this reflecting surface can paste reflector plate or plating reflectance coating formation on sidewall surfaces on the sidewall surfaces.Wherein this sidewall 28 is bright dipping sidewalls, and this sidewall 28 is provided with a plurality of holes 23, and these a plurality of holes 23 shapes are circular, also can be square, rhombus, ellipse or other shape, and these a plurality of holes isolate mutually, evenly to be distributed as the best.
Light is when this two light source 21,22 sends and inject this guiding device 20, because this guiding device 20 is provided with reflecting surface, so light penetrates from a plurality of holes 23 of sidewall 28.Because light comes back reflective through this guiding device 20, again from 23 outgoing of a plurality of holes, make that these a plurality of holes 23 emitted light strength ratios are more even, similar use one continuous strip light source is so can dwindle the blanking bar zone of the light guide plate that adopts this light-source system.
Seeing also Fig. 3, is the diagrammatic cross-section of light-source system second embodiment of the present invention.Light-source system 2 described in this light-source system 3 and first embodiment is roughly the same, and its difference is that these two light sources, 21,22 contiguous these sidewalls 24 are provided with.
Seeing also Fig. 4, is the schematic perspective view of light-source system the 3rd embodiment of the present invention.This light-source system 4 comprises a guiding device 40 and two light sources 21,22.This guiding device 40 is half cylindrical cavity, this guiding device 40 comprises the sidewall 44,48 of at least two sidewall 45, the 26 relative settings with two that are provided with relatively, light source 21 adjacent sidewall 45 are provided with, and light source 22 adjacent sidewall 46 are provided with, this guiding device 40 is provided with reflecting surface (figure indicates), and this reflecting surface can paste reflector plate or plating reflectance coating formation on sidewall surfaces on the sidewall surfaces.Wherein this sidewall 48 is bright dipping sidewalls, and this side 48 is provided with a plurality of holes 43, and these a plurality of holes 43 shapes are circular, also can be square, rhombus, ellipse or other shape, and these a plurality of holes isolate mutually, evenly to be distributed as the best.
Light is when this two light source 21,22 sends and inject this guiding device 40, because this guiding device 40 is provided with reflecting surface, so light penetrates from a plurality of holes 43 of sidewall 48.
Seeing also Fig. 5, is the diagrammatic cross-section of light-source system the 4th embodiment of the present invention.Light-source system 3 described in this light-source system 5 and the 3rd embodiment is roughly the same, and its difference is that these two light sources, 21,22 contiguous these sidewalls 44 are provided with.
Seeing also Fig. 6, is the schematic perspective view of the present invention's module backlight.This module 6 backlight comprises the light-source system 2 in a light guide plate 67 and the first embodiment of the invention, and wherein this light guide plate comprises at least one incidence surface 66, and these a plurality of holes 23 are oppositely arranged with the exiting surface 66 of this light guide plate 67.Enter light guide plate 67 from more than 2 hole of this light-source system 23 emitted light, because these a plurality of holes 23 emitted light strength ratios are more even, similar use one continuous strip light source so can dwindle the blanking bar zone of this light guide plate 67, makes that these module 6 bright dippings backlight are even.Wherein this light-source system 2 also can be aforementioned lights origin system 3, light-source system 4 or light-source system 5.
Light-source system of the present invention and module backlight are not limited to said structure, and for example: the reflecting surface of this guiding device can be arranged on the side wall inner surfaces.
In addition, this guiding device also can be a transparent body, this transparent body can be strip or semi-cylindrical shaped, comprise a plurality of outside surfaces, this outside surface is provided with reflecting surface, this reflecting surface can form on the outer surface by reflector plate is pasted on sidewall or with the reflectance coating plating, one of them reflecting surface leaves a plurality of transmission regions, this transmission region can be circular, also can be square, rhombus or ellipse wait other shapes, these a plurality of transmission regions are isolated mutually, evenly distribute, these two pointolites are arranged on the adjacent or opposing sidewalls of contiguous this a plurality of transmission regions place sidewall, and are provided with in guiding device.
Claims (17)
1. light-source system, comprise two pointolites, it is characterized in that: this light-source system further comprises a guiding device, this guiding device is a cavity body structure, this guiding device comprises a plurality of sidewalls, and wherein a sidewall is the bright dipping sidewall, and this bright dipping sidewall is provided with a plurality of holes, and these a plurality of sidewalls are provided with reflecting surface, and these two pointolites are arranged in this guiding device cavity.
2. light-source system according to claim 1 is characterized in that: these a plurality of holes isolate mutually.
3. light-source system according to claim 1 is characterized in that: these a plurality of holes evenly distribute.
4. light-source system according to claim 1 is characterized in that: this reflecting surface is arranged on this cavity wall.
5. light-source system according to claim 4 is characterized in that: this reflecting surface is arranged on this cavity wall inside surface or the outside surface.
6. light-source system according to claim 1 is characterized in that: this reflecting surface is to form by reflector plate being pasted being plated on the sidewall on the sidewall or with reflectance coating.
7. light-source system according to claim 1 is characterized in that: this light source is arranged on the adjacent or opposing sidewalls of contiguous this place, a plurality of hole sidewall, and is provided with in cavity.
8. light-source system according to claim 1 is characterized in that: these a plurality of holes are circular, square, rhombus or ellipse.
9. light-source system according to claim 1 is characterized in that: this guiding device is strip or semi-cylindrical shaped cavity body structure.
10. light-source system, comprise two pointolites, it is characterized in that: this light-source system further comprises a guiding device, this guiding device is a transparent body, comprise a plurality of outside surfaces, and this guiding device outside surface is provided with reflecting surface, and one of them reflecting surface leaves a plurality of transmission regions, and these two pointolites are arranged in this guiding device.
11. light-source system according to claim 10 is characterized in that: these a plurality of transmission regions are isolated mutually.
12. light-source system according to claim 10 is characterized in that: these a plurality of transmission regions evenly distribute.
13. light-source system according to claim 10 is characterized in that: this reflecting surface is to form on the outer surface by reflector plate is pasted on sidewall or with the reflectance coating plating.
14. light-source system according to claim 10 is characterized in that: this light source is arranged on the adjacent or opposing sidewalls of contiguous this a plurality of transmission regions place sidewall, and is provided with in guiding device.
15. light-source system according to claim 10 is characterized in that: these a plurality of transmission regions are circular, square, rhombus or ellipse.
16. light-source system according to claim 10 is characterized in that: this transparent body is strip or semi-cylindrical shaped.
17. module backlight, comprise a light guide plate and at least one light-source system, this light guide plate comprises at least one incidence surface, this light-source system comprises a plurality of sidewalls, wherein a sidewall is provided with a plurality of holes, the incidence surface of these a plurality of holes and this light guide plate is oppositely arranged, and wherein this light-source system is any described light-source system in the claim 1 to 16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031399150A CN100357810C (en) | 2003-07-19 | 2003-07-19 | Light source system and backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031399150A CN100357810C (en) | 2003-07-19 | 2003-07-19 | Light source system and backlight module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1570719A CN1570719A (en) | 2005-01-26 |
| CN100357810C true CN100357810C (en) | 2007-12-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031399150A Expired - Fee Related CN100357810C (en) | 2003-07-19 | 2003-07-19 | Light source system and backlight module |
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| Country | Link |
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| CN (1) | CN100357810C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI442111B (en) | 2011-05-23 | 2014-06-21 | Kinpo Elect Inc | Light guide element, light module and display |
| CN102830459B (en) * | 2011-06-17 | 2014-11-26 | 金宝电子工业股份有限公司 | Light guide element, light source module and display |
| CN103836539A (en) * | 2012-11-21 | 2014-06-04 | 鸿富锦精密工业（深圳）有限公司 | Light guide element and light source module |
| CN105757533A (en) * | 2016-03-03 | 2016-07-13 | 深圳市华星光电技术有限公司 | Light source, backlight module and display device |
| CN108279505B (en) | 2018-01-17 | 2019-07-09 | 京东方科技集团股份有限公司 | An optical cavity, an optical system and a display device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63269121A (en) * | 1987-04-27 | 1988-11-07 | Ricoh Co Ltd | Liquid crystal shutter device |
| JPH10170899A (en) * | 1996-12-16 | 1998-06-26 | Sharp Corp | Liquid crystal display device |
| US20010015780A1 (en) * | 2000-02-14 | 2001-08-23 | Akira Yamaguchi | Light diffusing plate, liquid crystal display apparatus and rear projection apparatus |
| US20020054489A1 (en) * | 2000-11-06 | 2002-05-09 | Yoshinobu Hirayama | Planar illumination device |
| JP2002358928A (en) * | 2001-05-31 | 2002-12-13 | Harison Toshiba Lighting Corp | Fluorescent lamp and backlight |
-
2003
- 2003-07-19 CN CNB031399150A patent/CN100357810C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63269121A (en) * | 1987-04-27 | 1988-11-07 | Ricoh Co Ltd | Liquid crystal shutter device |
| JPH10170899A (en) * | 1996-12-16 | 1998-06-26 | Sharp Corp | Liquid crystal display device |
| US20010015780A1 (en) * | 2000-02-14 | 2001-08-23 | Akira Yamaguchi | Light diffusing plate, liquid crystal display apparatus and rear projection apparatus |
| US20020054489A1 (en) * | 2000-11-06 | 2002-05-09 | Yoshinobu Hirayama | Planar illumination device |
| JP2002358928A (en) * | 2001-05-31 | 2002-12-13 | Harison Toshiba Lighting Corp | Fluorescent lamp and backlight |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1570719A (en) | 2005-01-26 |
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Granted publication date: 20071226 Termination date: 20160719 |