CN103486503A - Light guide device - Google Patents
Light guide device Download PDFInfo
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- CN103486503A CN103486503A CN201310450358.XA CN201310450358A CN103486503A CN 103486503 A CN103486503 A CN 103486503A CN 201310450358 A CN201310450358 A CN 201310450358A CN 103486503 A CN103486503 A CN 103486503A
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- light
- lgp
- circuit substrate
- length
- illuminating module
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Abstract
The invention discloses a light guide device comprising a light guide plate and a light-emitting unit. The light guide plate has long sides and short sides. The light-emitting unit comprises a first light-emitting module disposed on one long side and a second light-emitting module disposed on one short side. The first light-emitting module comprises a first circuit substrate and a plurality of first light-emitting elements which are disposed on the first circuit substrate and which face the long sides. The second light-emitting module comprises a second circuit substrate and a plurality of second light-emitting elements which are disposed on the second circuit substrate and which face the short sides. The second circuit substrate is longer than the first circuit substrate. The second light-emitting elements are more than the first light-emitting elements. Therefore, predetermined standard light guide uniformity can still be reached while the total amount of the first and second light-emitting elements and the total length of the first and second circuit substrates are reduced, and cost reduction, environment protection and energy saving are achieved.
Description
Technical field
The present invention relates to a kind of backlight module, relate in particular to a kind of guiding device, for the side entrance back module.
Background technology
In general, the effect of LGP is to guide the transmission direction of light beam, makes light beam evenly to be projected by the exiting surface of LGP and to go out.In the prior art, the light source module of a plurality of light-emitting components is arranged on by the same side of LGP, and the light beam that is directed to LGP inside can utilize the leaded light micro-structural Come that is positioned at the LGP bottom to improve optical performance.
Summary of the invention
The invention reside in a kind of guiding device is provided, it can be in the situation that minimizing total number of light-emitting component and substrate total length still can reach a preassigned leaded light uniformity.
The invention provides a kind of guiding device, its characteristics are, it comprises: a LGP and a luminescence unit.Described LGP has a long side and a short side.Described luminescence unit comprises that other first illuminating module and of described long side that is arranged on described LGP is arranged on the second other illuminating module of described short side of described LGP.Described the first illuminating module comprises one first circuit substrate and a plurality of be arranged on described the first circuit substrate and towards the first light-emitting component of the described long side of described LGP, and described the second illuminating module comprises a second circuit substrate and a plurality of be arranged on described second circuit substrate and towards the second light-emitting component of the described short side of described LGP.The length of described second circuit substrate is greater than the length of described the first circuit substrate, and a number of a plurality of described the second light-emitting components is greater than a number of a plurality of described the first light-emitting components.
Preferably, the described long side of described LGP and described short side are connected in a turning point, and described the first illuminating module and described the second illuminating module are all near described turning point.
Preferably, described the second illuminating module is greater than the shortest horizontal-shift distance of described the first illuminating module at a distance of described turning point at a distance of the shortest horizontal-shift distance of described turning point.
Preferably, a number ratio of a number of a plurality of described the second light-emitting components and a plurality of described the first light-emitting components is 8:2,7:3 or 9:1.
Preferably, the number that a plurality of described the first light-emitting components are used meets following formula: N1=(1.42 * 10
-3) X～(5.7 * 10
-3) X, wherein N1 is the number that a plurality of described the first light-emitting components are used, the length of the described long side that X is described LGP, and the unit of length is millimeter (mm).
Preferably, the number that a plurality of described the second light-emitting components are used meets following formula: N2=0.028Y～0.01Y, wherein N2 is the number that a plurality of described the second light-emitting components are used, the length of the described short side that Y is described LGP, and the unit of length is millimeter (mm).
Preferably, described LGP has an oblique side be connected between described long side and described short side, described luminescence unit comprises that one is arranged on the 3rd other illuminating module of described oblique side of described LGP, and described the 3rd illuminating module comprises a tertiary circuit substrate and a plurality of be arranged on described tertiary circuit substrate and, towards the 3rd light-emitting component of the described oblique side of described LGP, the number that wherein a plurality of described the 3rd light-emitting components are used meets following formula: N3=(1.43 * 10
-3) X～(4.8 * 10
-3) X, wherein N3 is the number that a plurality of described the 3rd light-emitting components are used, the length of the described long side that X is described LGP, and the unit of length is millimeter (mm).
The present invention also provides another kind of guiding device, and its characteristics are, it comprises: a LGP and a luminescence unit.Described LGP has a long side, a short side and is connected in the oblique side between described long side and described short side.Described luminescence unit comprises that other first illuminating module and of described long side that is arranged on described LGP is arranged on the second other illuminating module of described oblique side of described LGP.Described the first illuminating module comprises one first circuit substrate and a plurality of be arranged on described the first circuit substrate and towards the first light-emitting component of the described long side of described LGP, and described the second illuminating module comprises a second circuit substrate and a plurality of be arranged on described second circuit substrate and towards the second light-emitting component of the described oblique side of described LGP.The length of described second circuit substrate is greater than the length of described the first circuit substrate, and a number of a plurality of described the second light-emitting components is greater than a number of a plurality of described the first light-emitting components.
Preferably, the number that a plurality of described the first light-emitting components are used meets following formula: N1=(1.42 * 10
-3) X～(5.7 * 10
-3) X, wherein N1 is the number that a plurality of described the first light-emitting components are used, the length of the described long side that X is described LGP, and the unit of length is millimeter (mm).
Preferably, the number that a plurality of described the second light-emitting components are used meets following formula: N2=0.036Y～0.02Y, wherein N2 is the number that a plurality of described the second light-emitting components are used, the length of the described short side that Y is described LGP, and the unit of length is millimeter (mm).Beneficial effect of the present invention can be, the guiding device that the embodiment of the present invention provides, it can see through the design of " luminescence unit comprises that other first illuminating module and of long side that is arranged on LGP is arranged on the second other illuminating module of short side of LGP " or " luminescence unit comprises that other first illuminating module and of long side that is arranged on LGP is arranged on the second other illuminating module of oblique side of LGP ", so that the present invention can reduce first, total number of two light emitting and first, in the situation of two circuit substrate total lengths, still can reach a preassigned leaded light uniformity, thereby reach, reduce costs and the purpose of environmental protection and energy saving.
For enabling further to understand feature of the present invention and technology contents, refer to following about detailed description of the present invention and accompanying drawing, yet appended graphic only provide with reference to and the explanation use, not be used for the present invention is limited.
The accompanying drawing explanation
The structural representation of the guiding device that Fig. 1 is the embodiment of the present invention 1.
The structural representation of the guiding device that Fig. 2 is the embodiment of the present invention 2.
The structural representation of the guiding device that Fig. 3 is the embodiment of the present invention 3.
[Reference numeral]
Guiding device S
LGP 1
The long side length X
Short side edge length Y
The first illuminating module 21
The first circuit substrate 210
The first light-emitting component 211
Substrate length L 1
The shortest horizontal-shift is apart from D1
The second illuminating module 22
The second light-emitting component 221
The shortest horizontal-shift is apart from D2
The 3rd illuminating module 23
The 3rd light-emitting component 231
The specific embodiment
Mode below by embodiment further illustrates the present invention, but does not therefore limit the present invention among described scope of embodiments.
As shown in Figure 1, the embodiment of the present invention 1 provides a kind of guiding device S to embodiment 1, and it comprises a LGP 1 and a luminescence unit 2.For instance, guiding device S can be applicable to the backlight of display floater, or any electronic equipment that needs light source, yet the present invention is not as limit.
At first, the LGP 1 that embodiment 1 provides is one to have the rectangle transparent light guide plate of two corresponding long sides 11 and two corresponding short sides 12, the leaded light micro-structural can be designed according to different needs in its upper and lower surface, and any long side 11 is adjacent to each other with any one short side 12.Following content will reach a wherein short side 12 with the wherein long side 11 indicated in Fig. 1 and describe, yet the embodiment of the present invention is not as limit.
Moreover luminescence unit 2 comprises that first illuminating module 21 and of one side that is arranged on the long side 11 of LGP 1 is arranged on second illuminating module 22 of one side of the short side 12 of LGP 1.Wherein, the first illuminating module 21 comprises one first circuit substrate 210 and a plurality of be arranged on the first circuit substrate 210 and towards the first light-emitting component 211 of the long side 11 of LGP 1, and the light beam that a plurality of the first light-emitting component 211 produces can directly be invested the long side 11 of LGP 1.In addition, the second illuminating module 22 comprises a second circuit substrate 220 and a plurality of be arranged on second circuit substrate 220 and towards the second light-emitting component 221 of the short side 12 of LGP 1, and the light beam that a plurality of the second light-emitting component 221 produces can directly be invested the short side 12 of LGP 1.
For instance, the first circuit substrate 210 and second circuit substrate 220 all can be metal base printed circuit board (Metal Core PCB, MCPCB), wherein metal base printed circuit board is that original printed circuit board (PCB) is affixed on the better aluminium of another thermal conduction effect, copper or ferrous metal substrate, to promote the heat dissipation of printed circuit board (PCB), yet the embodiment of the present invention is not as limit.In addition, the first light-emitting component 211 and the second light-emitting component 221 all can be light emitting diode (LED), wherein a plurality of LED can pass through COB(Chip on board, integrated cache of memory) mode to be arranged on corresponding metal base printed circuit board, yet the embodiment of the present invention is not as limit.
Further, the substrate length L 2 of second circuit substrate 220 can be greater than the substrate length L 1 of the first circuit substrate 210, and the number (N2) that a plurality of the second light-emitting component 221 is used can be greater than the number (N1) that a plurality of the first light-emitting components 211 are used.Through the reality test, with experiment, learn, at LGP 1, can reach under the condition setting of a specific criteria leaded light uniformity, total length (L1+L2) after the first circuit substrate 210 that " the bilateral light source mode (that is the first illuminating module 21 and the second illuminating module 22 are separately positioned on one side of long side 11 and the short side 12 of LGP 1) that arranges " used and second circuit substrate 220 are added up only needs 25% the getting final product of total length of the circuit substrate that " the monolateral light source mode (that is only have illuminating module one side at the short side 12 of LGP 1 is set) that arranges " used.In addition, through the reality test, with experiment, learn, under the condition that at LGP 1, can reach a specific criteria uniformity is set, total the number (N1+N2) after a plurality of the first light-emitting components 211 that " the bilateral light source mode that arranges " used and a plurality of the second light-emitting component 221 are added up is also 25% the getting final product of total number that only needs the light-emitting component that " the monolateral light source mode that arranges " used.Thus according to " the bilateral light source mode that arranges " of embodiment 1 while realizing guiding device S of the present invention, at LGP 1, can reach under the condition setting of a specific criteria leaded light uniformity, the present invention not only can effectively reduce total the number (at least comparable " the monolateral light source mode that arranges " reduces 75%) that LED is used, and also can effectively reduce the total length (at least comparable " the monolateral light source mode that arranges " reduces 75%) that metal base printed circuit board is used, reduce costs and the purpose of environmental protection and energy saving thereby reach.
For instance, through the reality test, with experiment, learn, a plurality of the second light-emitting components 221 can be 8:2(as shown in Figure 1 with the best number ratio of a plurality of the first light-emitting components 211), the preferred proportion of taking second place can be 7:3 or 9:1.In addition, through the reality test, with experiment, learn, the number that a plurality of the first light-emitting components 211 and a plurality of the second light-emitting component 221 are used, can meet respectively following formula: N1=(1.42 * 10
-3) X～(5.7 * 10
-3) X and N2=0.028Y～0.01Y, wherein N1 is the number that a plurality of the first light-emitting components 211 are used, N2 is the number that a plurality of the second light-emitting components 221 are used, the long side length of the long side 11 that X is LGP 1, the short side edge length of the short side 12 that Y is LGP 1, the unit of length is all millimeter (mm).Yet, the present invention not with above-mentioned for example be limited.
It is worth mentioning that, as shown in Figure 1, the long side 11 of LGP 1 and short side 12 are connected in a turning point 10 in the mode be perpendicular to one another haply, and the first illuminating module 21 and the second illuminating module 22 are all very near turning point 10.Through the reality test, with experiment, learn, when the second illuminating module 22 is greater than the first illuminating module 21 at a distance of the shortest horizontal-shift of turning point 10 during apart from D1 at a distance of the shortest horizontal-shift of turning point 10 apart from D2, the present invention can effectively solve the corner blanking bar and reduce the problem of dark bright difference, more to promote the leaded light uniformity of LGP 1.
As shown in Figure 2, the embodiment of the present invention 2 provides a kind of guiding device S to embodiment 2.From Fig. 2 and Fig. 1 relatively, the embodiment of the present invention 2 is with the difference of embodiment 1 maximum: in embodiment 2, LGP 1 has an oblique side 13 be connected between long side 11 and short side 12, and luminescence unit 2 comprises that one is arranged on the 3rd illuminating module 23 of one side of the oblique side 13 of LGP 1, wherein the 3rd illuminating module 23 comprises a tertiary circuit substrate 230 and a plurality of be arranged on tertiary circuit substrate 230 and towards the 3rd light-emitting component 231 of the oblique side 13 of LGP 1.For instance, the number that a plurality of the 3rd light-emitting components 231 are used can meet following formula: N3=(1.43 * 10
-3) X～(4.8 * 10
-3) X, wherein N3 is the number that a plurality of the 3rd light-emitting components 231 are used, the long side length of the long side 11 that X is LGP 1 (the long side length X of embodiment 2 can be less than the long side length X of embodiment 1), and the unit of length is millimeter.
Therefore, according to " the bilateral light source mode that arranges " of above-described embodiment 2 while realizing guiding device S of the present invention, at LGP 1, can reach under the condition setting of a specific criteria leaded light uniformity, the present invention not only can effectively reduce total the number that LED uses and effectively reduce the total length that metal base printed circuit board is used, to reach, reduce costs and the purpose of environmental protection and energy saving, and also can pass through the design of the 3rd illuminating module 23 of contiguous oblique side 13, effectively to solve the corner blanking bar and to reduce the problem of dark bright difference, and then more promote the leaded light uniformity of LGP 1.
As shown in Figure 3, the embodiment of the present invention 3 provides a kind of guiding device S to embodiment 3.From Fig. 3 and Fig. 1 relatively, the embodiment of the present invention 3 is with the difference of embodiment 1 maximum: in embodiment 3, LGP 1 has an oblique side 13 be connected between long side 11 and short side 12, and luminescence unit 2 comprises that one is arranged on second illuminating module 22 of one side of the oblique side 13 of LGP 1, wherein the second illuminating module 22 comprises a second circuit substrate 220 and a plurality of be arranged on second circuit substrate 220 and towards the second light-emitting component 221 of the oblique side 13 of LGP 1.For instance, the number that a plurality of the first light-emitting components 211 and a plurality of the second light-emitting component 221 are used, can meet respectively following formula: N1=(1.42 * 10
-3) X～(5.7 * 10
-3) X and N2=0.036Y～0.02Y, wherein N1 is the number that a plurality of the first light-emitting components 211 are used, N2 is the number that a plurality of the second light-emitting components 221 are used, the long side length of the long side 11 that X is LGP 1 (the long side length X of embodiment 2 can be less than the long side length X of embodiment 1), the short side edge length of the short side 12 that Y is LGP 1 (the short side edge length Y of embodiment 2 can be less than the short side edge length Y of embodiment 1), the unit of length is all millimeter.
Therefore, according to " the bilateral light source mode that arranges " of above-described embodiment 3 while realizing guiding device S of the present invention, at LGP 1, can reach under the condition setting of a specific criteria leaded light uniformity, the present invention not only can effectively reduce total the number that LED uses and effectively reduce the total length that metal base printed circuit board is used, to reach, reduce costs and the purpose of environmental protection and energy saving, and also can pass through the design of the second illuminating module 22 of contiguous oblique side 13, effectively to solve the corner blanking bar and to reduce the problem of dark bright difference, and then more promote the leaded light uniformity of LGP 1.
In sum, beneficial effect of the present invention can be, the guiding device S that the embodiment of the present invention provides, it can see through the design of " luminescence unit 2 comprises that long side 11 other first illuminating module 21 and that are arranged on LGP 1 are arranged on the second other illuminating module 22 of short side 12 of LGP 1 " or " luminescence unit 2 comprises that long side 11 other first illuminating module 21 and that are arranged on LGP 1 are arranged on the second other illuminating module 22 of oblique side 13 of LGP 1 ", so that the present invention can reduce first, two light emitting (211, 221) total number and first, two circuit substrates (210, 220) in the situation of total length, still can reach a preassigned leaded light uniformity, thereby reach, reduce costs and the purpose of environmental protection and energy saving.
The foregoing is only better possible embodiments of the present invention, therefore do not limit to the scope of the claims of the present invention, the equivalence techniques that therefore all utilizations specification of the present invention and graphic content are done changes, and all is contained in scope of the present invention.
Claims (10)
1. a guiding device, is characterized in that, it comprises:
One LGP, described LGP has a long side and a short side; And
One luminescence unit, described luminescence unit comprises that other first illuminating module and of described long side that is arranged on described LGP is arranged on the second other illuminating module of described short side of described LGP;
Wherein, described the first illuminating module comprises one first circuit substrate and a plurality of be arranged on described the first circuit substrate and towards the first light-emitting component of the described long side of described LGP, and described the second illuminating module comprises a second circuit substrate and a plurality of be arranged on described second circuit substrate and towards the second light-emitting component of the described short side of described LGP;
Wherein, the length of described second circuit substrate is greater than the length of described the first circuit substrate, and a number of a plurality of described the second light-emitting components is greater than a number of a plurality of described the first light-emitting components.
2. guiding device as claimed in claim 1, is characterized in that, the described long side of described LGP and described short side are connected in a turning point, and described the first illuminating module and described the second illuminating module are all near described turning point.
3. guiding device as claimed in claim 2, is characterized in that, described the second illuminating module is greater than the shortest horizontal-shift distance of described the first illuminating module at a distance of described turning point at a distance of the shortest horizontal-shift distance of described turning point.
4. guiding device as claimed in claim 2, is characterized in that, a number ratio of a number of a plurality of described the second light-emitting components and a plurality of described the first light-emitting components is 8:2,7:3 or 9:1.
5. guiding device as claimed in claim 2, is characterized in that, the number that a plurality of described the first light-emitting components are used meets following formula: N1=(1.42 * 10
-3) X～(5.7 * 10
-3) X, wherein N1 is the number that a plurality of described the first light-emitting components are used, the length of the described long side that X is described LGP, and the unit of length is millimeter (mm).
6. guiding device as claimed in claim 2, it is characterized in that, the number that a plurality of described the second light-emitting components are used meets following formula: N2=0.028Y～0.01Y, wherein N2 is the number that a plurality of described the second light-emitting components are used, the length of the described short side that Y is described LGP, the unit of length is millimeter (mm).
7. guiding device as claimed in claim 1, it is characterized in that, described LGP has an oblique side be connected between described long side and described short side, described luminescence unit comprises that one is arranged on the 3rd other illuminating module of described oblique side of described LGP, and described the 3rd illuminating module comprises a tertiary circuit substrate and a plurality of be arranged on described tertiary circuit substrate and, towards the 3rd light-emitting component of the described oblique side of described LGP, the number that wherein a plurality of described the 3rd light-emitting components are used meets following formula: N3=(1.43 * 10
-3) X～(4.8 * 10
-3) X, wherein N3 is the number that a plurality of described the 3rd light-emitting components are used, the length of the described long side that X is described LGP, and the unit of length is millimeter (mm).
8. a guiding device, is characterized in that, it comprises:
One LGP, described LGP has a long side, a short side and is connected in the oblique side between described long side and described short side; And
One luminescence unit, described luminescence unit comprises that other first illuminating module and of described long side that is arranged on described LGP is arranged on the second other illuminating module of described oblique side of described LGP;
Wherein, described the first illuminating module comprises one first circuit substrate and a plurality of be arranged on described the first circuit substrate and towards the first light-emitting component of the described long side of described LGP, and described the second illuminating module comprises a second circuit substrate and a plurality of be arranged on described second circuit substrate and towards the second light-emitting component of the described oblique side of described LGP;
Wherein, the length of described second circuit substrate is greater than the length of described the first circuit substrate, and a number of a plurality of described the second light-emitting components is greater than a number of a plurality of described the first light-emitting components.
9. guiding device as claimed in claim 8, is characterized in that, the number that a plurality of described the first light-emitting components are used meets following formula: N1=(1.42 * 10
-3) X～(5.7 * 10
-3) X, wherein N1 is the number that a plurality of described the first light-emitting components are used, the length of the described long side that X is described LGP, and the unit of length is millimeter (mm).
10. guiding device as claimed in claim 8, it is characterized in that, the number that a plurality of described the second light-emitting components are used meets following formula: N2=0.036Y～0.02Y, wherein N2 is the number that a plurality of described the second light-emitting components are used, the length of the described short side that Y is described LGP, the unit of length is millimeter (mm).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310450358.XA CN103486503B (en) | 2013-09-27 | 2013-09-27 | Guiding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310450358.XA CN103486503B (en) | 2013-09-27 | 2013-09-27 | Guiding device |
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| Publication Number | Publication Date |
|---|---|
| CN103486503A true CN103486503A (en) | 2014-01-01 |
| CN103486503B CN103486503B (en) | 2015-10-07 |
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|---|---|---|---|
| CN201310450358.XA Active CN103486503B (en) | 2013-09-27 | 2013-09-27 | Guiding device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107678206A (en) * | 2016-08-02 | 2018-02-09 | 三星显示有限公司 | Light emission module and the display device including light emission module |
| EP3290784A1 (en) * | 2016-08-31 | 2018-03-07 | Samsung Display Co., Ltd. | Light emitting module and display device including light emitting module |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620193A (en) * | 2012-03-09 | 2012-08-01 | 青岛海信电器股份有限公司 | Sectional light emitting diode (LED) backlight module and liquid crystal display device |
| WO2012169440A1 (en) * | 2011-06-09 | 2012-12-13 | シャープ株式会社 | Lighting device, display device and television receiver |
| TW201305678A (en) * | 2011-07-27 | 2013-02-01 | Au Optronics Corp | Backlight module |
| US20130077348A1 (en) * | 2011-09-27 | 2013-03-28 | Samsung Display Co., Ltd. | Light module and backlight assembly including the same |
-
2013
- 2013-09-27 CN CN201310450358.XA patent/CN103486503B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012169440A1 (en) * | 2011-06-09 | 2012-12-13 | シャープ株式会社 | Lighting device, display device and television receiver |
| TW201305678A (en) * | 2011-07-27 | 2013-02-01 | Au Optronics Corp | Backlight module |
| US20130077348A1 (en) * | 2011-09-27 | 2013-03-28 | Samsung Display Co., Ltd. | Light module and backlight assembly including the same |
| CN102620193A (en) * | 2012-03-09 | 2012-08-01 | 青岛海信电器股份有限公司 | Sectional light emitting diode (LED) backlight module and liquid crystal display device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107678206A (en) * | 2016-08-02 | 2018-02-09 | 三星显示有限公司 | Light emission module and the display device including light emission module |
| EP3290784A1 (en) * | 2016-08-31 | 2018-03-07 | Samsung Display Co., Ltd. | Light emitting module and display device including light emitting module |
| CN107797336A (en) * | 2016-08-31 | 2018-03-13 | 三星显示有限公司 | Light emitting module |
| US10393949B2 (en) | 2016-08-31 | 2019-08-27 | Samsung Display Co., Ltd. | Light emitting module and display device including light emitting module |
| CN107797336B (en) * | 2016-08-31 | 2022-09-20 | 三星显示有限公司 | Light emitting module |
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|---|---|
| CN103486503B (en) | 2015-10-07 |
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