CN105180097B - Display device, lamp box and its reflector plate - Google Patents
Display device, lamp box and its reflector plate Download PDFInfo
- Publication number
- CN105180097B CN105180097B CN201510493414.7A CN201510493414A CN105180097B CN 105180097 B CN105180097 B CN 105180097B CN 201510493414 A CN201510493414 A CN 201510493414A CN 105180097 B CN105180097 B CN 105180097B
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- China
- Prior art keywords
- reflector plate
- sub
- side reflector
- lamp box
- present
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/10—Construction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133605—Direct backlight including specially adapted reflectors
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133611—Direct backlight including means for improving the brightness uniformity
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
Abstract
The present invention provides a kind of display device, lamp box and its reflector plate, wherein reflector plate is used for reflecting to provide backlight, in down straight aphototropism mode set, the light that LED sends, the reflector plate includes bottom reflector plate and side reflector plate, side reflector plate is connected to the side of bottom reflector plate, and side reflector plate includes the first sub- side reflector plate and the second sub- side reflector plate being sequentially connected from bottom reflector plate；First sub- side reflector plate is a with the angle of bottom reflector plate, and the second sub- side reflector plate is b with the angle of bottom reflector plate, and wherein, a is more than b.The display device that the present invention is provided, lamp box employ the reflector plate that double inclination angles are designed so that the brightness uniformity of lamp box, solve the blanking bar phenomenon of lamp box periphery.
Description
Technical field
The present invention relates to direct-type backlight design field, more particularly to a kind of display device, lamp box and its reflector plate.
Background technology
In Straight-down type liquid crystal television backlight, as lamp box height is thicker, it will usually increase hypotenuse design in edge,
To improve the apparent thickness at edge.
But this single hypotenuse design, generally in OD (optical density) value<During 20mm, as edge is brighter
Can there is blanking bar in angled portion, so as to the phenomenon for surrounding blanking bar and corner blanking bar occur.
Specifically, the simplification structural representation that Fig. 1, Fig. 1 are lamp boxes in prior art is referred to.
As shown in figure 1, lamp box of the prior art 10 includes LED 11 and reflector plate 12, reflector plate 12 includes bottom reflector plate
121 and side reflector plate 122.
From the index path that illustrates in Fig. 1, the brightness in dotted line frame region is brighter, and brightness is better than the body region on the right side of in figure
Domain so that overall brightness is uneven, can present the phenomenon of surrounding blanking bar and corner blanking bar on a display panel.
Generally solve surrounding blanking bar and corner blanking bar phenomenon is all utilized in printing grey or black ink in side reflector plate
Mode, do so only weakens the reflecting brightness of hypotenuse part, but this way more can not make brightness uniformity on this, and by
In printing process is employed, production cost is caused to increase.
Content of the invention
The present invention provides a kind of display device, lamp box and its reflector plate, can solve the problem that on display floater and can present surrounding
Blanking bar and the problem of corner blanking bar phenomenon.
For solving above-mentioned technical problem, one aspect of the present invention is：A kind of reflector plate is provided, the reflector plate
For being reflected the light that LED sends to provide backlight in down straight aphototropism mode set, including：
Bottom reflector plate；
Side reflector plate, is connected to the side of the bottom reflector plate, and the side reflector plate is included from the bottom reflector plate successively
The first sub- side reflector plate and the second sub- side reflector plate of connection；
The first sub- side reflector plate is a with the angle of the bottom reflector plate, the second sub- side reflector plate and the bottom
The angle of reflector plate is b, and wherein, a is more than b.
According to one preferred embodiment of the present invention, a >=90 degree, b<90 degree.
According to one preferred embodiment of the present invention, the whole height of the reflector plate is H, the height of the first sub- side reflector plate
Spend for h, wherein, 1/10H≤h≤9/10H.
According to one preferred embodiment of the present invention, the described first sub- side reflector plate is B from back gauge, and the LED is from back gauge
For A, wherein, B<A and 1/10A≤B≤9/10A.
According to one preferred embodiment of the present invention, the side reflector plate further includes to be connected with the described second sub- side reflector plate
The 3rd sub- side reflector plate, the 3rd sub- side reflector plate second sub- side reflector plate relative with the described first sub- side reflector plate
It is symmetrical arranged.
According to one preferred embodiment of the present invention, the described first sub- side reflector plate and/or the 3rd sub- side reflector plate and institute
State the second sub- side reflector plate joint face and otch is provided with, the otch is oval, rhombus or grooving.
For solving above-mentioned technical problem, another technical solution used in the present invention is：A kind of lamp box is provided, including：
LED；
Reflector plate, the LED are arranged on the reflector plate, and the reflector plate includes bottom reflector plate and side reflector plate, institute
The side that side reflector plate is connected to the bottom reflector plate is stated, the side reflector plate includes be sequentially connected from the bottom reflector plate
One sub- side reflector plate and the second sub- side reflector plate, the first sub- side reflector plate are a with the angle of the bottom reflector plate, described
Two sub- side reflector plate are b with the angle of the bottom reflector plate, and wherein, a is more than b.
According to one preferred embodiment of the present invention, a >=90 degree, b<90 degree；
The whole height of the reflector plate is H, and the height of the first sub- side reflector plate is h, wherein, 1/10H≤h≤9/
10H；
The first sub- side reflector plate is B from back gauge, and the LED is A, wherein, B from back gauge<A and 1/10A≤B≤
9/10A.
According to one preferred embodiment of the present invention, the side reflector plate further includes to be connected with the described second sub- side reflector plate
The 3rd sub- side reflector plate, the 3rd sub- side reflector plate and the relatively described second sub- side reflector plate of the first sub- side reflector plate
It is symmetrical arranged, the first sub- side reflector plate and/or the 3rd sub- side reflector plate and the described second sub- side reflector plate joint face
Otch is provided with, the otch is oval, rhombus or grooving.
For solving above-mentioned technical problem, another technical solution used in the present invention is：A kind of display device is provided, this shows
Showing device includes liquid crystal module and provides the backlight module of backlight to the liquid crystal module that the backlight module includes above-mentioned lamp
Case.
The invention has the beneficial effects as follows：The situation of prior art is different from, the display device that the present invention is provided, lamp box are adopted
The reflector plate of double inclination angles design so that the brightness uniformity of lamp box, solves the blanking bar phenomenon of lamp box periphery.
Description of the drawings
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, below will be to making needed for embodiment description
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing, wherein：
Fig. 1 is the simplification structural representation of lamp box in prior art；
Fig. 2 is the structural representation of the reflector plate of one embodiment of the present invention；
Fig. 3 is the simplification structural representation of the lamp box of one embodiment of the present invention；And
Fig. 4 is the simplification structural representation of the aobvious device of one embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Refer to the structural representation that Fig. 2, Fig. 2 are the reflector plates of one embodiment of the present invention.
As shown in Fig. 2 the present invention provides a kind of reflector plate 22, it is right in down straight aphototropism mode set that the reflector plate 22 is used for
The light that LED sends is reflected to provide backlight, and the reflector plate 22 includes bottom reflector plate 221 and side reflector plate 222.
Wherein, bottom reflector plate 221 is same as the prior art, and here is omitted, unlike the prior art, the present invention
Middle side reflector plate 222 employs double inclination angle designs.
For having this, the side reflector plate 222 of the present invention is connected to the side of bottom reflector plate 221, and side reflector plate 222 is included certainly
The first sub- side reflector plate 223 and the second sub- side reflector plate 224 that bottom reflector plate 221 is sequentially connected.
Preferably, side reflector plate 222 further includes the 3rd sub- side reflector plate being connected with the second sub- side reflector plate 224
225, the 3rd sub- side reflector plate 225 is symmetrical arranged with 223 relative second sub- side reflector plate 224 of the first sub- side reflector plate.
Wherein, the first sub- side reflector plate 223 is a with the angle of bottom reflector plate 221, and the second sub- side reflector plate 224 is anti-the bottom of with
The angle for penetrating piece 221 is that b, a are more than b, and a >=90 degree, b<90 degree.
Wherein, the whole height of reflector plate 22 is H, and the height of the first sub- side reflector plate 223 is h, it is preferred that 1/10H≤h
≤9/10H.
Wherein, the first sub- side reflector plate 223 is A (see Fig. 3), B for B, LED from back gauge from back gauge<A, it is preferred that 1/
10A≤B≤9/10A.
If being applied in curved-surface display backlight, as backlight is in case of bending, the stress that reflector plate 22 is produced due to bending
Reflector plate 22 can be made to produce buckling phenomena or so that the relative backboard (not shown) degumming of local reflex piece 22 is arched upward, so as to affect backlight
Taste.
In order to improve this phenomenon, the first sub- side reflector plate 223 and/or the 3rd sub- side reflector plate 225 are anti-with the second sub- side
Penetrate 224 joint face of piece and otch is provided with, otch can be oval, rhombus or grooving.Preferably, the long axis direction of otch is perpendicular to two
The intersecting lens of sub- side reflector plate.Can so make reflector plate 22 in BENDING PROCESS, have gap to absorb stress, it is therefore prevented that fold
Phenomenon makes 22 degumming of local reflex piece arch upward.
See also the simplification structural representation of the lamp box that Fig. 3, Fig. 3 are one embodiment of the present invention.
As shown in figure 3, the present invention also provides a kind of lamp box 20, the lamp box includes the reflector plate shown in LED 21 and Fig. 2
22.
Wherein, LED 21 is arranged on reflector plate 22, and reflector plate 22 includes bottom reflector plate 221 and side reflector plate 222, and side is anti-
The side that piece 222 is connected to bottom reflector plate 221 is penetrated, side reflector plate 222 includes the first sub- side being sequentially connected from bottom reflector plate 221
Reflector plate 223 and the second sub- side reflector plate 224.
Preferably, side reflector plate 222 further includes the 3rd sub- side reflector plate being connected with the second sub- side reflector plate 224
225, the 3rd sub- side reflector plate 225 and the relative second sub- side reflector plate 224 of the first sub- side reflector plate 223 are symmetrical arranged.
Wherein, the first sub- side reflector plate 223 is a with the angle of bottom reflector plate 221, and the second sub- side reflector plate 224 is anti-the bottom of with
The angle for penetrating piece 221 is that b, a are more than b, and a >=90 degree, b<90 degree.
Wherein, the whole height of reflector plate 22 is H (equivalent to lamp box height), and the height of the first sub- side reflector plate 223 is
H, it is preferred that 1/10H≤h≤9/10H.
Wherein, the first sub- side reflector plate 223 is A for B, LED 21 from back gauge from back gauge, it is preferred that B<A and 1/10A
≤B≤9/10A.
When being applied to curved-surface display backlight, as backlight is in case of bending, reflector plate 22 is made due to the stress that bending is produced
Reflector plate 22 produces buckling phenomena or so that the relative backboard (not shown) degumming of local reflex piece 22 is arched upward, so as to affect backlight product
Taste.
In order to improve this phenomenon, the first sub- side reflector plate 223 and/or the 3rd sub- side reflector plate 225 are anti-with the second sub- side
Penetrate 224 joint face of piece and otch is provided with, otch can be oval, rhombus or grooving.Preferably, the long axis direction of otch is perpendicular to two
The intersecting lens of sub- side reflector plate.Can so make reflector plate 22 in BENDING PROCESS, have gap to absorb stress, it is therefore prevented that fold
Phenomenon makes 22 degumming of local reflex piece arch upward.
In one embodiment, from back gauge A=80mm, the first sub- side reflector plate 223 is reflected design LED 21 bottom of with
The angle of piece 221 is a=90 degree, the first sub- side reflector plate 223 from back gauge B=36mm, the height of the first sub- side reflector plate 223
H=5mm, lamp box height H=18mm, and rhombus is provided with the first sub- side reflector plate 223 and 224 joint face of the second sub- side reflector plate
Otch, the experiment proved that, brightness uniformity, and optics taste is very good.
From the index path that illustrates in Fig. 3 also, in lamp box 20, overall brightness is uniform, it is to avoid lamp box 10 shown in Fig. 1
The situation of surrounding blanking bar and corner blanking bar phenomenon can be presented on a display panel.And printing process need not be adopted, reduce
Production cost.
See also the simplification structural representation that Fig. 4, Fig. 4 are the aobvious devices of one embodiment of the present invention.
As shown in figure 4, the present invention also provides a kind of display device 100, the display device 100 is, for example, LCD TV, bag
Include liquid crystal module 110 and the backlight module 120 of backlight is provided to liquid crystal module 110, backlight module 120 includes above-mentioned lamp box
20.
In sum, those skilled in the art hold and understand, the display device 100 of present invention offer, lamp box 20 employ double
The reflector plate 22 of inclination angle design so that the brightness uniformity of lamp box 20, solves the blanking bar phenomenon of 20 periphery of lamp box.
Embodiments of the invention are the foregoing is only, the scope of the claims of the present invention is not thereby limited, every using this
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (6)
1. a kind of reflector plate, for being reflected the light that LED sends to provide backlight in down straight aphototropism mode set, which is special
Levy and be, including：
Bottom reflector plate；
Side reflector plate, is connected to the side of the bottom reflector plate, and the side reflector plate includes to be sequentially connected from the bottom reflector plate
The first sub- side reflector plate and the second sub- side reflector plate；
The first sub- side reflector plate is a with the angle of the bottom reflector plate, and the second sub- side reflector plate is reflected with the bottom
The angle of piece is b, and wherein, a is more than b, a=90 degree, b<90 degree；
The side reflector plate further includes the 3rd sub- side reflector plate being connected with the described second sub- side reflector plate, the 3rd son
Side reflector plate and the relatively described second sub- side reflector plate of the first sub- side reflector plate are symmetrical arranged, the first sub- side reflector plate
And/or the 3rd sub- side reflector plate is provided with otch with the described second sub- side reflector plate joint face, the otch is oval, water chestnut
Shape or grooving.
2. reflector plate according to claim 1, it is characterised in that the whole height of the reflector plate is H, first son
The height of side reflector plate is h, wherein, 1/10H≤h≤9/10H.
3. reflector plate according to claim 1, it is characterised in that the first sub- side reflector plate is B from back gauge, described
LED is A, wherein, B from back gauge<A and 1/10A≤B≤9/10A.
4. a kind of lamp box, it is characterised in that include：
LED；
Reflector plate, the LED are arranged on the reflector plate, and the reflector plate includes bottom reflector plate and side reflector plate, the side
Reflector plate is connected to the side of the bottom reflector plate, and the side reflector plate includes the first son being sequentially connected from the bottom reflector plate
Side reflector plate and the second sub- side reflector plate, the first sub- side reflector plate are a with the angle of the bottom reflector plate, second son
Side reflector plate is b with the angle of the bottom reflector plate, and wherein, a is more than b, a=90 degree, b<90 degree；
The side reflector plate further includes the 3rd sub- side reflector plate being connected with the described second sub- side reflector plate, the 3rd son
Side reflector plate and the relatively described second sub- side reflector plate of the first sub- side reflector plate are symmetrical arranged, the first sub- side reflector plate
And/or the 3rd sub- side reflector plate is provided with otch with the described second sub- side reflector plate joint face, the otch is oval, water chestnut
Shape or grooving.
5. lamp box according to claim 4, it is characterised in that
The whole height of the reflector plate is H, and the height of the first sub- side reflector plate is h, wherein, 1/10H≤h≤9/10H；
The first sub- side reflector plate is B from back gauge, and the LED is A, wherein, B from back gauge<A and 1/10A≤B≤9/
10A.
6. a kind of display device, it is characterised in that the backlight module of backlight is provided including liquid crystal module and to the liquid crystal module,
The backlight module includes the lamp box described in claim 4 or 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510493414.7A CN105180097B (en) | 2015-08-12 | 2015-08-12 | Display device, lamp box and its reflector plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510493414.7A CN105180097B (en) | 2015-08-12 | 2015-08-12 | Display device, lamp box and its reflector plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105180097A CN105180097A (en) | 2015-12-23 |
| CN105180097B true CN105180097B (en) | 2017-03-08 |
Family
ID=54902370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510493414.7A Active CN105180097B (en) | 2015-08-12 | 2015-08-12 | Display device, lamp box and its reflector plate |
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| CN (1) | CN105180097B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN213577327U (en) * | 2020-10-16 | 2021-06-29 | 广州视源电子科技股份有限公司 | Reflector plate and backlight lamp with same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1987599A (en) * | 2005-12-23 | 2007-06-27 | 群康科技(深圳)有限公司 | Direct downward back light module |
| CN201063086Y (en) * | 2007-01-30 | 2008-05-21 | 瑞仪光电股份有限公司 | Reflection configuration of directly-down backlight module |
| CN204028521U (en) * | 2014-07-14 | 2014-12-17 | 京东方光科技有限公司 | Backlight and display device |
| CN204116765U (en) * | 2014-10-20 | 2015-01-21 | 冠捷显示科技（厦门）有限公司 | A kind of backlight module and display device thereof using two-fold slant reflection sheet |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SG179166A1 (en) * | 2009-09-16 | 2012-05-30 | Sharp Kk | Lighting device, display apparatus, and television receiver |
| CN102980105B (en) * | 2012-12-04 | 2015-12-09 | 京东方科技集团股份有限公司 | A kind of backlight module and display unit |
-
2015
- 2015-08-12 CN CN201510493414.7A patent/CN105180097B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1987599A (en) * | 2005-12-23 | 2007-06-27 | 群康科技(深圳)有限公司 | Direct downward back light module |
| CN201063086Y (en) * | 2007-01-30 | 2008-05-21 | 瑞仪光电股份有限公司 | Reflection configuration of directly-down backlight module |
| CN204028521U (en) * | 2014-07-14 | 2014-12-17 | 京东方光科技有限公司 | Backlight and display device |
| CN204116765U (en) * | 2014-10-20 | 2015-01-21 | 冠捷显示科技（厦门）有限公司 | A kind of backlight module and display device thereof using two-fold slant reflection sheet |
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| Publication number | Publication date |
|---|---|
| CN105180097A (en) | 2015-12-23 |
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