CN101017284A - Light source device - Google Patents
Light source device Download PDFInfo
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- CN101017284A CN101017284A CNA2007100800543A CN200710080054A CN101017284A CN 101017284 A CN101017284 A CN 101017284A CN A2007100800543 A CNA2007100800543 A CN A2007100800543A CN 200710080054 A CN200710080054 A CN 200710080054A CN 101017284 A CN101017284 A CN 101017284A
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- light
- supply apparatus
- light supply
- photo
- light source
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Abstract
This light source device for use of one aphototropism module use, wherein, the light source device is set by one side of the light conductive board; the light source device comprises mask film and light source; the mask film has one open end, first side wall and second side wall; the first and second side walls are in relative two sides of open end with reflection part inside; the light source is for light diode inside mask film relative to light reflection part; the mask film comprises light reflection slice down light source; in best example, the first side wall is set relative to open end section with light reflection slice; the light source device also comprises circuit board down light reflection.
Description
Technical field
The present invention uses for a backlight liquid crystal display module about a kind of light supply apparatus.
Background technology
(Liquid Crystal Display LCD) is widely used on the various electronic products such as computing machine, TV and mobile phone LCD.Backlight module (backlight module) is one of LCD important composition element.The employed light supply apparatus of backlight module then directly influences the performance and the assembly cost of backlight module.Wherein, (Light Emitting Diodes LED) because volume is little, power consumption is few, therefore becomes one of light source of LCD use to light emitting diode.In addition, compared to direct type backlight module, side light type back light module comes into one's own because having thin thickness.
Common side light type back light module structure comprises light supply apparatus, light guide plate, reflecting plate and diaphragm etc.Wherein, after light is sent by light supply apparatus, need to be transmitted to backlight module via light guide plate.Prior art as shown in Figure 1a, light supply apparatus 100 comprise mask 300 and light source 500.Mask 300 has the openend 350 with the corresponding setting of light inlet side of light guide plate 800.The light of prior art carries out the route synoptic diagram shown in Fig. 1 b, and in the light 501 that light source 500 is sent, only direct of travel can directly pass through openend 350 towards the light 501 of the part of openend 350.All the other non-501 of light of advancing towards openend 350 can't directly pass through openend 350, therefore can't be used effectively.In addition, because light emitting diode is a point source of light, so may the light uniformity coefficient of the light inlet side of light guide plate 800 be reduced because mixed light not exclusively forms the dark space 400 shown in Fig. 1 c.
Prior art shown in Fig. 1 d is made the emission angle that microstructure 801 can increase LED source 500 emitted lights in the light inlet side of light guide plate 800, thereby promotes the light uniformity coefficient of the light inlet side of light guide plate 800.Yet relative meeting increases processing cost and time.In addition, the way of the distance of the light inlet side that increases LED source 500 and light guide plate 800 is arranged in addition in the prior art, also can promote the light uniformity coefficient of the light inlet side of light guide plate 800.This way is subject to the dimensions restriction, and light utilization efficiency is descended.The design of the above light supply apparatus has improved space.
Summary of the invention
Fundamental purpose of the present invention is to provide a kind of light supply apparatus, has than uniform luminous effect.
Fundamental purpose of the present invention is to provide a kind of light supply apparatus, can increase brightness.
Fundamental purpose of the present invention is to provide a kind of light supply apparatus, can improve the light service efficiency.
Light supply apparatus of the present invention is preferably a side that is arranged at light guide plate.Light supply apparatus comprises mask and light source.Mask has openend, the first side wall and second sidewall.The first side wall and second sidewall are positioned at relative two sides of openend, and second sidewall has photo-emission part and is arranged at its inner face.Light source is arranged in the mask and is positioned at the inner face of the first side wall, and corresponding mutually with photo-emission part.
Light source is preferably light emitting diode, and be arranged in the mask and be positioned at the inner face of the first side wall, and corresponding mutually with photo-emission part.Mask can further comprise the light-reflecting sheet that is arranged at the light source below.The first side wall is obliquely installed with respect to opened end section, and has light-reflecting sheet on the first side wall.Light supply apparatus also comprises circuit board, is arranged at the light-reflecting sheet below, and light-reflecting sheet is arranged at the light source below.
Light-reflecting sheet and opened end section have angle, and angle is less than 90 °.In preferred embodiment, angle is between 60 ° to 80 °.The height of photo-emission part is between between the 0.3mm to 0.5mm.The distance of photo-emission part and light source is between between the 0.5mm to 0.8mm.
Photo-emission part comprises the long strip type parts that extend in parallel with respect to opened end section.Photo-emission part comprises second sidewall to the inner outstanding convex surface of mask.The outstanding shape of convex surface comprises pyramid.The outstanding shape of convex surface comprises circular cone.The outstanding shape of convex surface comprises dome.Convex surface extends distribution along openend.
Description of drawings
Fig. 1 a is the prior art schematic perspective view;
Fig. 1 b carries out synoptic diagram for prior art light;
Fig. 1 c is the prior art schematic top plan view;
Fig. 1 d is another prior art schematic top plan view;
Fig. 2 a is a preferred embodiment schematic perspective view of the present invention;
Fig. 2 b is the embodiment schematic perspective view that the photo-emission part of light supply apparatus of the present invention adopts juncture to be provided with;
Fig. 2 c is the embodiment schematic perspective view that the photo-emission part of light supply apparatus of the present invention adopts one-body molded mode to be provided with;
Fig. 3 carries out synoptic diagram for embodiments of the invention light;
Fig. 4 carries out synoptic diagram for the embodiment light that the mask of light supply apparatus of the present invention has light reflective;
Fig. 5 comprises the embodiment synoptic diagram of the light-reflecting sheet of inclination for light supply apparatus of the present invention;
Fig. 6 is the embodiment schematic perspective view of pyramid for the photo-emission part of light supply apparatus of the present invention;
Fig. 7 is the embodiment schematic perspective view of circular cone for the photo-emission part of light supply apparatus of the present invention;
Fig. 8 is the embodiment schematic perspective view of dome for the photo-emission part of light supply apparatus of the present invention.
Wherein, Reference numeral is:
100 light supply apparatuses
300 masks
310 the first side walls
311 light-reflecting sheets
320 second sidewalls
321 photo-emission parts
350 openends
500 light sources
501 light
700 circuit boards
800 light guide plate
The θ angle
h
1The photo-emission part height
d
1Photo-emission part and light source distance
Embodiment
The invention provides a kind of light supply apparatus.With preferred embodiment, this light supply apparatus uses for a side light type back light module.Backlight module more often is the light source that is provided as LCD (Liquid Crystal Display).
Embodiment shown in Fig. 2 a, light supply apparatus 100 preferable sides that are arranged at light guide plate 800 of the present invention.Light supply apparatus 100 comprises mask 300 and light source 500.Mask 300 is the semi-enclosed object that is provided with along light supply apparatus 100 sides, comprises openend 350, the first side wall 310 and second sidewall 320.In preferred embodiment, openend 350 and the corresponding setting of the light inlet side of light guide plate 800.The first side wall 310 and second sidewall 320 are positioned at relative two sides of openend 350.In the embodiment shown in Fig. 2 a, the first side wall 310 refers to the sidewall that extend toward the side bending mask 300 belows, second sidewall 320 refers to the sidewall that extend toward the side bending masks 300 tops, and the first side wall 310 and second sidewall 320 are overlapping at the side of mask 300.In addition, the first side wall 310 and second sidewall 320 also can interconnect in other embodiments.
Wherein, second sidewall 320 has photo-emission part 321 and is arranged at its inner face.In the preferred embodiment shown in Fig. 2 a, the long strip type parts of photo-emission part 321 for extending in parallel with respect to openend 350 cross sections.In addition, in the present embodiment, photo-emission part 321 preferable bendings by second sidewall 320 form, and have the convex cross section of an arc song.Yet in different embodiment, the setting of photo-emission part 321 also can be used the individual components that engages with second sidewall 320 as Fig. 2 b illustrated embodiment, or adopts one-body molded mode to make as Fig. 2 c illustrated embodiment.
Different with the prior art shown in Fig. 1 b, light as shown in Figure 3 carries out the route synoptic diagram.In the light 501 that light source 500 is sent, except direct of travel towards the light 501 of openend 350, direct of travel also can be by reflex by openend 350 towards the light 501 of the photo-emission part 321 of second sidewall 320.Particularly, when light source 500 direct of travel that sends when the light 501 of the photo-emission part 321 of second sidewall 320 marches to photo-emission part 321, can change direct of travels via photo-emission part 321 reflection, make direct of travel towards openend 350 with by openend 350.
Therefore, by the setting of photo-emission part 321, can improve the utilization factor of light source 500 emitted lights 501.In addition, more because photo-emission part 321 for the reflex of light 501, has increased reflection and the dispersion effect of light 501 in mask 300.In other words, the light 501 of the part that light source 500 is sent can utilize the effect that reaches mixed light in the mask 300 that is reflected in of photo-emission part 321, the optical uniformity when further having improved by openend 350.
Embodiment as shown in Figure 4, mask 300 can be respectively the metal object with reflection ray plane, or have the nonmetal object on plating plane, or other has the material of light reflective, for example minute surface.In addition, mask 300 can further comprise light-reflecting sheet 311.Light-reflecting sheet 311 is arranged at light source 500 belows.Light-reflecting sheet 311 can be respectively the metal object with reflection ray plane, or has the nonmetal object on plating plane, or other has the material of light reflective, for example minute surface.By above setting, when the light 501 that light source 500 is sent marches to mask 300 inboards or light-reflecting sheet 311, can change direct of travel via mask 300 inboards and light-reflecting sheet 311 reflections respectively.In other words, for the light 501 that light source 500 is sent, reflexible zone increases.Therefore, the effect of aforementioned mixed light effect increases, and can further improve optical uniformity again.
In preferred embodiment as shown in Figure 5, the first side wall 310 is obliquely installed with respect to openend 350 cross sections, and has light-reflecting sheet 311 on the first side wall 310.As shown in Figure 5, has an angle theta between light-reflecting sheet 311 and openend 350 cross sections.Because light-reflecting sheet 311 tilts with respect to openend 350 cross sections, the related light source 500 that makes changes with respect to the angle of photo-emission part 321 and mask 300.Therefore, can improve light 501 that light source 500 sent and advance and amount by openend 350 towards openend 350, with increase brightness through photo-emission part 321 and mask 300 reflection backs.In this preferred embodiment, light supply apparatus 100 of the present invention also comprises circuit board 700.Circuit board 700 is arranged at light-reflecting sheet 311 belows, and light-reflecting sheet 311 is arranged at light source 500 belows.
In preferred embodiment as shown in Figure 5, angle theta between 60 ° to 80 °, the height h of photo-emission part 321
1Between between the 0.3mm to 0.5mm, photo-emission part 321 and light source 500 apart from d
1Between between the 0.5mm to 0.8mm.Yet in different embodiment, the height h of the angle of angle theta, photo-emission part 321
1, and photo-emission part 321 and light source 500 apart from d
1, the different setting to reach preferable mixed light effect all can be arranged respectively.
The visual demand of the shape of photo-emission part 321 and different settings is arranged.For example photo-emission part 321 can be included as second sidewall 320 to mask 300 inner outstanding convex surfaces.In addition, the convex surface as photo-emission part 321 is preferably with respect to the parallel distribution in openend 350 cross sections.In embodiment as shown in Figure 6, second sidewall 320 is to the outstanding quadrangular pyramid that is shaped as of the mask 300 inner convex surfaces of giving prominence to.Also promptly in this embodiment, photo-emission part 321 is a quadrangular pyramid.In different embodiment, as the base number and the height of the pyramid of photo-emission part 321 different the setting can be arranged respectively, obtain best mixed light effect to adjust catoptrical angle.
In embodiment as shown in Figure 7, second sidewall 320 is to the outstanding circular cone that is shaped as of the mask 300 inner convex surfaces of giving prominence to.Also promptly in this embodiment, photo-emission part 321 is a circular cone.Wherein, change height, can adjust catoptrical angle and obtain best mixed light effect as the circular cone of photo-emission part 321.In embodiment as shown in Figure 8, second sidewall 320 is to the outstanding dome that is shaped as of the mask 300 inner convex surfaces of giving prominence to.Also promptly in this embodiment, photo-emission part 321 is a dome.In different embodiment, as the curvature and the height of the dome of photo-emission part 321 different the setting can be arranged respectively, obtain best mixed light effect to adjust catoptrical angle.
The present invention is described by above-mentioned related embodiment, yet the foregoing description is only for implementing example of the present invention.Must be pointed out that disclosed embodiment does not limit the scope of the invention.On the contrary, being contained in the modification of the spirit of claims and scope and equalization is provided with and all is contained in the scope of the present invention.
Claims (15)
1, a kind of light supply apparatus uses for a backlight module, it is characterized in that this light supply apparatus comprises:
One mask has an openend, a first side wall and one second sidewall, and wherein this first side wall and this second sidewall are positioned at relative two sides of this openend, and this second sidewall has a photo-emission part and is arranged at its inner face;
One light source is arranged in this mask and is positioned at the inner face of this first side wall;
Wherein this light source is corresponding mutually with this photo-emission part.
2, light supply apparatus according to claim 1 is characterized in that, this light source comprises a light emitting diode.
3, light supply apparatus according to claim 1 is characterized in that, has a light-reflecting sheet on this first side wall.
4, light supply apparatus according to claim 1 is characterized in that, this first side wall is obliquely installed with respect to this opened end section, and has a light-reflecting sheet on this first side wall.
5, light supply apparatus according to claim 4 is characterized in that, this light-reflecting sheet and this opened end section have an angle, and this angle is less than 90 °.
6, light supply apparatus according to claim 5 is characterized in that, this angle is between 60 ° to 80 °.
7, light supply apparatus according to claim 4 is characterized in that, also comprises a circuit board, and wherein this circuit board is arranged at this light-reflecting sheet below, and this light-reflecting sheet is arranged at this light source below.
8, light supply apparatus according to claim 1 is characterized in that, the height of this photo-emission part is between between the 0.3mm to 0.5mm.
9, light supply apparatus according to claim 1 is characterized in that, the distance of this photo-emission part and this light source is between between the 0.5mm to 0.8mm.
10, light supply apparatus according to claim 1 is characterized in that, this photo-emission part comprises long strip type parts that extend in parallel with respect to this opened end section.
11, light supply apparatus according to claim 1 is characterized in that, this photo-emission part comprises this second sidewall to the inner outstanding convex surface of this mask.
12, light supply apparatus according to claim 11 is characterized in that, the outstanding shape of this convex surface comprises a pyramid.
13, light supply apparatus according to claim 11 is characterized in that, the outstanding shape of this convex surface comprises a circular cone.
14, light supply apparatus according to claim 11 is characterized in that, the outstanding shape of this convex surface comprises a dome.
15, light supply apparatus according to claim 11 is characterized in that, this convex surface extends distribution along this openend.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100800543A CN100562786C (en) | 2007-03-02 | 2007-03-02 | Light supply apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100800543A CN100562786C (en) | 2007-03-02 | 2007-03-02 | Light supply apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101017284A true CN101017284A (en) | 2007-08-15 |
| CN100562786C CN100562786C (en) | 2009-11-25 |
Family
ID=38726388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100800543A Expired - Fee Related CN100562786C (en) | 2007-03-02 | 2007-03-02 | Light supply apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100562786C (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865387A (en) * | 2010-06-07 | 2010-10-20 | 友达光电股份有限公司 | Backlight module and liquid crystal display device |
| CN101893189A (en) * | 2010-07-14 | 2010-11-24 | 深圳市华星光电技术有限公司 | Backlight module and display device |
| CN102182955A (en) * | 2010-01-07 | 2011-09-14 | Lg伊诺特有限公司 | Optical assembly, backlight unit having the same, and display apparatus thereof |
| CN102221164A (en) * | 2011-05-17 | 2011-10-19 | 广州创维平面显示科技有限公司 | Backlight module and liquid crystal display device |
| CN102588838A (en) * | 2012-02-15 | 2012-07-18 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN103176296A (en) * | 2011-12-26 | 2013-06-26 | 康佳集团股份有限公司 | Liquid crystal module |
| CN103499052A (en) * | 2013-09-24 | 2014-01-08 | 京东方科技集团股份有限公司 | Backlight source and display device |
| CN104075194A (en) * | 2014-07-07 | 2014-10-01 | 深圳市德仓科技有限公司 | Backlight light source assembly, backlight module, liquid crystal module and manufacturing method |
| TWI476352B (en) * | 2012-04-05 | 2015-03-11 | Radiant Opto Electronics Corp | Lighting fixture |
| CN106697675A (en) * | 2017-01-25 | 2017-05-24 | 广西芮芽科技有限公司 | Intelligent trash can |
| CN107831621A (en) * | 2017-10-24 | 2018-03-23 | 友达光电股份有限公司 | Backlight module and display device comprising same |
| CN109695854A (en) * | 2017-10-20 | 2019-04-30 | 法雷奥照明湖北技术中心有限公司 | Light source assembly, lighting device and motor vehicles |
-
2007
- 2007-03-02 CN CNB2007100800543A patent/CN100562786C/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100881A (en) * | 2010-01-07 | 2014-10-15 | Lg伊诺特有限公司 | Optical assembly and display apparatus thereof |
| CN102182955A (en) * | 2010-01-07 | 2011-09-14 | Lg伊诺特有限公司 | Optical assembly, backlight unit having the same, and display apparatus thereof |
| CN101865387A (en) * | 2010-06-07 | 2010-10-20 | 友达光电股份有限公司 | Backlight module and liquid crystal display device |
| CN101893189A (en) * | 2010-07-14 | 2010-11-24 | 深圳市华星光电技术有限公司 | Backlight module and display device |
| CN102221164A (en) * | 2011-05-17 | 2011-10-19 | 广州创维平面显示科技有限公司 | Backlight module and liquid crystal display device |
| CN103176296A (en) * | 2011-12-26 | 2013-06-26 | 康佳集团股份有限公司 | Liquid crystal module |
| WO2013120268A1 (en) * | 2012-02-15 | 2013-08-22 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN102588838A (en) * | 2012-02-15 | 2012-07-18 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| TWI476352B (en) * | 2012-04-05 | 2015-03-11 | Radiant Opto Electronics Corp | Lighting fixture |
| CN103499052A (en) * | 2013-09-24 | 2014-01-08 | 京东方科技集团股份有限公司 | Backlight source and display device |
| CN104075194A (en) * | 2014-07-07 | 2014-10-01 | 深圳市德仓科技有限公司 | Backlight light source assembly, backlight module, liquid crystal module and manufacturing method |
| CN106697675A (en) * | 2017-01-25 | 2017-05-24 | 广西芮芽科技有限公司 | Intelligent trash can |
| CN109695854A (en) * | 2017-10-20 | 2019-04-30 | 法雷奥照明湖北技术中心有限公司 | Light source assembly, lighting device and motor vehicles |
| CN107831621A (en) * | 2017-10-24 | 2018-03-23 | 友达光电股份有限公司 | Backlight module and display device comprising same |
| CN107831621B (en) * | 2017-10-24 | 2021-06-04 | 友达光电股份有限公司 | Backlight module and display device comprising same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100562786C (en) | 2009-11-25 |
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Granted publication date: 20091125 Termination date: 20210302 |