CN107564413A - Collapsible display device - Google Patents
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- CN107564413A CN107564413A CN201710607901.0A CN201710607901A CN107564413A CN 107564413 A CN107564413 A CN 107564413A CN 201710607901 A CN201710607901 A CN 201710607901A CN 107564413 A CN107564413 A CN 107564413A
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Abstract
The present invention provides a kind of collapsible display device.The collapsible display device sets the first display screen with first connecting portion, and the second display screen with second connecting portion, first, it is respectively equipped with second connecting portion and the first display screen, and the bonding circuit that the display circuit on second display screen is electrically connected with, utilize a kink connection first with connection circuit, second connecting portion, connection circuit thereon is set to be electrically connected with first, bonding circuit in second connecting portion, realize the first display screen, signal connection between second display screen, directly flexible display apparatus is folded compared to prior art, the thickness of kink can be substantially reduced, make collapsible display device that there is less bending radius of curvature, foldability strengthens, and it still is able to that there is preferable reliability after multiple bending, lift the quality of product.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of collapsible display device.
Background technology
Organic LED display device (Organic Light Emitting Display, OLED) has spontaneous
Light, driving voltage are low, luminous efficiency is high, the response time is short, definition and contrast are high, nearly 180 ° of visual angles, use temperature ranges
Width, many advantages, such as Flexible Displays are with large area total colouring can be achieved, it is the display for most having development potentiality to be known as by industry
Device.
OLED generally includes：Substrate, the anode on substrate, the hole injection layer on anode, located at sky
Hole transmission layer on the implanted layer of cave, the luminescent layer on hole transmission layer, the electron transfer layer on luminescent layer, it is located at
Electron injecting layer on electron transfer layer and the negative electrode on electron injecting layer.The principle of luminosity of OLED is semiconductor
Material and luminous organic material pass through carrier injection and composite guide photoluminescence under electric field driven.Specifically, OLED is led to
Frequently with tin indium oxide (ITO) pixel electrode and metal electrode respectively as the anode and negative electrode of device, driven in certain voltage
Under, electronics and hole are injected into electron transfer layer and hole transmission layer from negative electrode and anode respectively, and electronics and hole are passed through respectively
Electron transfer layer and hole transmission layer move to luminescent layer, and are met in luminescent layer, form exciton and excite light emitting molecule,
The latter sends visible ray by radiative relaxation.
Flexible Displays are the Display Techniques of following great competitive advantage.One big advantage of flexible display technologies is that have to roll over
Folded property, can so obtain bigger viewing area without occupying bigger space.Existing collapsible display device is usual
Its substrate is made using flexiplast, and makes thin film transistor (TFT) (TFT) layer, OLED layer, film envelope successively on substrate
(TFE) layer is filled, finally plus polaroid, touch-control sensing (touch sensor) layer, so as to obtain folding type flexible display device.
The collapsible display device of in general needs to design bending place, is bent device in the bending place during use, so as to reach folding
Folded effect.Collapsible display device is designed with two emphasis：First, because bending place must endure as the folding of tens thousand of times,
Bending place needs have certain structural strength；Second, collapsible display device need to have preferable foldability.Prior art
Typically by being designed each thicknesses of layers of bending place to solve above-mentioned two problems.If however, in order to strengthen bending place
Structural strength and increase each thicknesses of layers in bending place, the minimum bent bending radius of curvature increase of device can be caused, it is unfavorable
In being folded into minimum volume, the foldability of collapsible display device reduces；If conversely, in order to strengthen collapsible display device
Foldability and the thickness for reducing each film layer in bending place, then each film layer of bending place may be made to be ruptured when folding, caused
Failure of face slab.
Therefore, it is necessary to existing collapsible display device is improved.
The content of the invention
It is an object of the invention to provide a kind of collapsible display device, and reliability is high, while has less bending bent
Rate radius, foldability enhancing.
To achieve the above object, the present invention provides a kind of collapsible display device, including：First display screen, the second display
Screen and the kink of the first display screen of connection and second display screen；
The side of first display screen is provided with the first display circuit, and one end of first display screen is provided with to away from the
The first connecting portion of one display circuit side bending, the first connecting portion are provided with the first bonding circuit, the first display
Circuit and the first bonding circuit are electrically connected with；
The side of the second display screen is provided with the second display circuit, and one end of the second display screen is provided with to away from the
The second connecting portion of two display circuit side bending, the second connecting portion are provided with the second bonding circuit, the second display
Circuit and the second bonding circuit are electrically connected with；
The kink is provided with connection circuit, the kink connection first connecting portion and second connecting portion, kink
On connection circuit be electrically connected with the first bonding circuit and the second bonding circuit.
First display screen and second display screen include：Flexible base board, the TFT layer on flexible base board, it is located at
Oled layer, encapsulated layer, the polaroid on encapsulated layer and the touch-control on polaroid of covering oled layer on TFT layer
Sensed layer；The first connecting portion and the flexible base board of the first display screen are structure as a whole；The second connecting portion is aobvious with second
The flexible base board of display screen is structure as a whole.
The kink is flexible printed circuit board, and the flexible printed circuit board is respectively with first connecting portion away from first
Side connection of the side and second connecting portion of display circuit away from the second display circuit.
The flexible base board of the kink and the first display screen, the flexible base board of second display screen, first connecting portion, second
Connecting portion is structure as a whole.
Connection circuit on the kink uses snake type cabling or chain-type cabling.
The material of the flexible base board includes polyimides, polyethylene terephthalate, poly- naphthalenedicarboxylic acid ethylene glycol
One or more in ester, makrolon, polyether sulfone；The thickness of the flexible base board is 20 μm -150 μm；
The encapsulated layer is inorganic material and the thin-film encapsulation layer of organic material stacking, and the thickness of the encapsulated layer is 20 μ
m-250μm；
The thickness of the pixel control layer is 200 μm -300 μm.
The connection circuit includes one kind in data wire, gate line, touch-control sensing control signal wire and OLED power lines
It is or a variety of.
The collapsible display device also includes the bending control device on kink, for the bending to kink
Angle, bending radius of curvature are controlled and maintained.
The bending control device is linkage or bending key-course.
The bending key-course is memory alloy layer, rubber layer, TPUE layer or containing ER fluid
Structure sheaf.
Beneficial effects of the present invention：A kind of collapsible display device provided by the invention, the collapsible display device are set
The first display screen with first connecting portion and the second display screen with second connecting portion, on first, second connecting portion respectively
Provided with the bonding circuit being electrically connected with the display circuit on the first display screen and second display screen, there is connection electricity using one
The kink on road connects first, second connecting portion, makes the bonding on connection circuit first, second connecting portion of electric connection thereon
Circuit, the signal connection between the first display screen, second display screen is realized, compared to prior art directly to flexible display apparatus
Folded, the thickness of kink can be substantially reduced, make collapsible display device that there is less bending radius of curvature, it is foldable
Property enhancing, and still be able to that there is preferable reliability after multiple bending, lift the quality of product.
Brief description of the drawings
In order to be further understood that the feature of the present invention and technology contents, refer to below in connection with the detailed of the present invention
Illustrate and accompanying drawing, however accompanying drawing only provide with reference to and explanation use, be not used for being any limitation as the present invention.
In accompanying drawing,
Fig. 1 is the structural representation of the first embodiment of the collapsible display device of the present invention；
Fig. 2 is the structural representation of the second embodiment of the collapsible display device of the present invention.
Embodiment
Further to illustrate the technological means and its effect of the invention taken, below in conjunction with being preferable to carry out for the present invention
Example and its accompanying drawing are described in detail.
The present invention provides a kind of collapsible display device, referring to Fig. 1, first of the collapsible display device for the present invention
Embodiment, including：First display screen 1, second display screen 3 and the kink 5 of the first display screen 1 of connection and second display screen 3；
The side of first display screen 1 is provided with the first display circuit 13, and one end of first display screen 1 is provided with to remote
From the first connecting portion 11 of the side of the first display circuit 13 bending, the first connecting portion 11 is provided with the first bonding circuit
111, the first display circuit 13 is electrically connected with the first bonding circuit 111；
The side of the second display screen 3 is provided with the second display circuit 33, and one end of the second display screen 3 is provided with to remote
From the second connecting portion 31 of the side of the second display circuit 33 bending, the second connecting portion 31 is provided with the second bonding circuit
311, the second display circuit 33 is electrically connected with the second bonding circuit 311；
The kink 5 is provided with connection circuit 51, and the kink 5 connects first connecting portion 11 and second connecting portion
31, the connection circuit 51 on kink 5 is electrically connected with the first bonding circuit 111 and the second bonding circuit 311.
Specifically, first display screen 1 and second display screen 3 include：Flexible base board 71, located at flexible base board 71
On TFT layer 72, the oled layer 73 on TFT layer 72, the encapsulated layer 74, inclined on encapsulated layer 74 for covering oled layer 73
Mating plate 75 and the pixel control layer 76 on polaroid 75；The flexible base board of the display screen 1 of first connecting portion 11 and first
71 are structure as a whole；The second connecting portion 31 and the flexible base board 71 of second display screen 3 are structure as a whole.
Specifically, in the first embodiment of the present invention, the kink 5 is flexible printed circuit board (FPC), the flexibility
Printed circuit board (PCB) is aobvious away from second with side of the first connecting portion 11 away from the first display circuit 13 and second connecting portion 31 respectively
Show the side connection of circuit 33.
Specifically, the flexible base board 71 is made using flexible plastic material, specifically, the material of the flexible base board 71
Including polyimides (PI), polyethylene terephthalate (PET), PEN (PEN), makrolon
(PC), the one or more in polyether sulfone (PES).Specifically, the thickness of the flexible base board 71 is 20 μm -150 μm, is preferably
100μm。
Specifically, the TFT layer 72 is is used for the TFT layer being driven to OLED in the prior art, comprising multiple
TFT elements and capacity cell and data wire, gate line, clock cable for driving multiple TFT elements etc., with existing skill
Art is no different, and will not be described here.
Specifically, the oled layer 73 is the oled layer in OLED display in the prior art, includes multiple OLED devices
Part and the OLED power lines etc. being electrically connected with OLED, are no different with prior art, will not be described here.
Specifically, the encapsulated layer 74 is inorganic material and the thin-film encapsulation layer of organic material stacking, for oled layer
73 are packaged and prevent outside water oxygen intrusion OLED.Specifically, the thickness of the encapsulated layer 74 is 20 μm -250 μm, preferably
For 200 μm.
Specifically, the pixel control layer 76 is is used for the structure sheaf for realizing touch-control sensing in the prior art, comprising multiple
Touch-control sensing unit and a plurality of touch-control sensing control signal wire being electrically connected with touch-control sensing unit, are no different with prior art,
It will not be described here.Specifically, the thickness of the pixel control layer is 200 μm -300 μm, preferably 250 μm.
Specifically, the connection circuit 51 includes data wire, gate line, touch-control sensing control signal wire and OLED power supplys
One or more in line.
It is worth noting that, the first display circuit 13 on first display 1 includes but is not limited to the first display screen 1
The OLED devices in TFT elements, capacity cell, data wire, gate line, clock cable, oled layer 73 in structure in TFT layer 72
Part, OLED power lines, the touch-control sensing unit in pixel control layer 76, touch-control sensing control signal wire and each first device of connection
Wire between part, the TFT that the display circuit 13 of second display 3 second includes but is not limited in the structure of second display screen 3
TFT elements, capacity cell, data wire, gate line, clock cable, the OLED in oled layer 73, OLED electricity in layer 72
Leading between source line, the touch-control sensing unit in pixel control layer 76, touch-control sensing control signal wire and each component of connection
Line.
It should be noted that the collapsible display device of the present invention, by setting first connecting portion 11 and second connecting portion
31, it will be bent for the first bonding circuit 111 of bonding and the second bonding circuit 311 to the first display screen 1 and second display screen 3
The side namely the back side of the first display screen 1 and second display screen 3 of display circuit are not provided with, is flexible printed circuit board by one
Kink 5 first connecting portion 11 and second connecting portion 31 are connected, and make the company on kink 5 namely flexible printed circuit board
Connect circuit 51 to be electrically connected with the first bonding circuit 111 and the second bonding circuit 311, so as to realize the first display screen 1 and second
Signal connection between display screen 3, and the part of the bent area 5 for connecting is hidden by the first display screen 1 and second display screen 3
Gear, when the collapsible display device is deployed, it can visually be minimized without the area of the part of display；Meanwhile
Because the thickness of flexible printed circuit board compares the thickness of the bending place directly bent with prior art to flexible display apparatus
Degree substantially reduces, and makes the collapsible display device of the present invention have less bending radius of curvature, and foldability strengthens, and soft
Property printed circuit board (PCB) still there is splendid reliability after multiple bending, collapsible display device can be avoided after a long time use
The problem of connection circuit 51 on kink 5 is broken is produced, lifts the quality of product.
Specifically, in order to which the bending angle to kink 5, bending radius of curvature are controlled and are maintained, folding of the invention
Stacked display device also includes the bending control device 9 on the kink 5.The bending control device 9 can be existing
The linkage of function with control bending angle and radius of curvature, also can artificially be controlled using angle of bend with radius of curvature
The bending key-course of system, for example, the bending key-course can be memory alloy layer, rubber layer, TPUE (TPU)
Layer or the structure sheaf containing ER fluid (Electrorheological Fluids).
Referring to Fig. 2, the second embodiment of the collapsible display device for the present invention, the embodiment is implemented with above-mentioned first
The difference of example is that the flexible base board 71 of the display screen 1 of kink 5 and first, the flexible base board 71, first of second display screen 3 connect
Socket part 11, second connecting portion 31 are structure as a whole, and the connection circuit 51 on the kink 5 uses snake type cabling or chain-type
Cabling, the kink 5 is only as the region that is connected with circuit of bending, compared in the prior art directly entering flexible display apparatus
The bending place of row bending, thickness substantially reduce, and can make the collapsible display device of the present invention have less bending curvature half
Footpath, foldability enhancing, in addition, the connection circuit 51 on kink 5 uses snake type cabling or chain-type cabling, connect circuit 51
Buckle resistance greatly enhance, collapsible display device can be avoided to produce the connection circuit on kink 5 after a long time use
51 the problem of being broken, lift the quality of product.
In summary, collapsible display device of the invention, set the first display screen with first connecting portion and with
The second display screen of second connecting portion, be respectively equipped with first, second connecting portion with the first display screen and second display screen
The bonding circuit that display circuit is electrically connected with, the kink for having connection circuit using one connect first, second connecting portion, make it
On connection circuit be electrically connected with first, second connecting portion on bonding circuit, realize between the first display screen, second display screen
Signal connection, directly flexible display apparatus is folded compared to prior art, the thickness of kink can be substantially reduced, made
Collapsible display device has less bending radius of curvature, foldability enhancing, and still is able to have after multiple bending
Preferable reliability, lift the quality of product.
It is described above, for the person of ordinary skill of the art, can be with technique according to the invention scheme and technology
Other various corresponding changes and deformation are made in design, and all these changes and deformation should all belong to the appended right of the present invention
It is required that protection domain.
Claims (10)
- A kind of 1. collapsible display device, it is characterised in that including：First display screen (1), second display screen (3) and connection the The kink (5) of one display screen (1) and second display screen (3)；The side of first display screen (1) is provided with the first display circuit (13), one end of first display screen (1) be provided with to First connecting portion (11) away from the bending of the first display circuit (13) side, the first connecting portion (11) are provided with first Bonding circuit (111), the first display circuit (13) are electrically connected with the first bonding circuit (111)；The side of the second display screen (3) is provided with the second display circuit (33), one end of the second display screen (3) be provided with to Second connecting portion (31) away from the bending of the second display circuit (33) side, the second connecting portion (31) are provided with second Bonding circuit (311), the second display circuit (33) are electrically connected with the second bonding circuit (311)；The kink (5) is provided with connection circuit (51), kink (5) the connection first connecting portion (11) and the second connection Portion (31), the connection circuit (51) and the first bonding circuit (111) and the second bonding circuit (311) on kink (5) are electrical Connection.
- 2. collapsible display device as claimed in claim 1, it is characterised in that first display screen (1) and the second display Screen (3) includes：Flexible base board (71), the TFT layer (72) on flexible base board (71), the OLED on TFT layer (72) Layer (73), the encapsulated layer (74) of covering oled layer (73), the polaroid (75) on encapsulated layer (74) and located at polaroid (75) pixel control layer (76) on；The first connecting portion (11) and the flexible base board (71) of the first display screen (1) are integrated Structure；The second connecting portion (31) and the flexible base board (71) of second display screen (3) are structure as a whole.
- 3. collapsible display device as claimed in claim 2, it is characterised in that the kink (5) is flexible print circuit Plate, the flexible printed circuit board connect with side of the first connecting portion (11) away from the first display circuit (13) and second respectively Side of the socket part (31) away from the second display circuit (33) connects.
- 4. collapsible display device as claimed in claim 2, it is characterised in that the kink (5) and the first display screen (1) Flexible base board (71), the flexible base board (71) of second display screen (3), first connecting portion (11), second connecting portion (31) be one Body structure.
- 5. collapsible display device as claimed in claim 4, it is characterised in that the connection circuit on the kink (5) (51) snake type cabling or chain-type cabling are used.
- 6. collapsible display device as claimed in claim 2, it is characterised in that the material of the flexible base board (71) includes poly- One or more in acid imide, polyethylene terephthalate, PEN, makrolon, polyether sulfone； The thickness of the flexible base board (71) is 20 μm -150 μm；The encapsulated layer (74) is inorganic material and the thin-film encapsulation layer of organic material stacking, and the thickness of the encapsulated layer (74) is 20μm-250μm；The thickness of the pixel control layer (76) is 200 μm -300 μm.
- 7. collapsible display device as claimed in claim 2, it is characterised in that the connection circuit (51) include data wire, One or more in gate line, touch-control sensing control signal wire and OLED power lines.
- 8. collapsible display device as claimed in claim 1, it is characterised in that also include on the kink (5) Bending control device (9), it is controlled and maintains for the bending angle to kink (5), bending radius of curvature.
- 9. collapsible display device as claimed in claim 8, it is characterised in that the bending control device (9) is Link chain device Structure or bending key-course.
- 10. collapsible display device as claimed in claim 9, it is characterised in that the bending key-course be memory alloy layer, Rubber layer, TPUE layer or the structure sheaf containing ER fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710607901.0A CN107564413B (en) | 2017-07-24 | 2017-07-24 | Folding display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710607901.0A CN107564413B (en) | 2017-07-24 | 2017-07-24 | Folding display device |
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| Publication Number | Publication Date |
|---|---|
| CN107564413A true CN107564413A (en) | 2018-01-09 |
| CN107564413B CN107564413B (en) | 2020-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710607901.0A Active CN107564413B (en) | 2017-07-24 | 2017-07-24 | Folding display device |
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| CN108493213A (en) * | 2018-03-13 | 2018-09-04 | 武汉华星光电半导体显示技术有限公司 | Display screen component and terminal device |
| CN108832019A (en) * | 2018-06-21 | 2018-11-16 | 武汉华星光电半导体显示技术有限公司 | A kind of cover board and flexible display apparatus for flexible display apparatus |
| CN109448634A (en) * | 2018-11-13 | 2019-03-08 | 武汉华星光电半导体显示技术有限公司 | The display control method of display device and display device |
| CN109817687A (en) * | 2019-02-15 | 2019-05-28 | 京东方科技集团股份有限公司 | A kind of flexible base board and OLED display panel |
| CN109857200A (en) * | 2019-02-28 | 2019-06-07 | 北京小米移动软件有限公司 | Electronic equipment |
| CN110406235A (en) * | 2018-04-26 | 2019-11-05 | Oppo广东移动通信有限公司 | A kind of manufacturing method of Curved screen, Curved screen and electronic equipment |
| CN110444577A (en) * | 2019-08-14 | 2019-11-12 | 京东方科技集团股份有限公司 | A kind of flexible display panels and display device |
| WO2019218674A1 (en) * | 2018-05-15 | 2019-11-21 | 京东方科技集团股份有限公司 | Electronic display device |
| CN110570773A (en) * | 2019-09-18 | 2019-12-13 | 昆山工研院新型平板显示技术中心有限公司 | Flexible display panel |
| CN111105716A (en) * | 2020-01-08 | 2020-05-05 | 合肥维信诺科技有限公司 | Display device |
| CN111211149A (en) * | 2020-01-08 | 2020-05-29 | 武汉华星光电半导体显示技术有限公司 | Display screen and display device |
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| CN108493213A (en) * | 2018-03-13 | 2018-09-04 | 武汉华星光电半导体显示技术有限公司 | Display screen component and terminal device |
| CN110406235A (en) * | 2018-04-26 | 2019-11-05 | Oppo广东移动通信有限公司 | A kind of manufacturing method of Curved screen, Curved screen and electronic equipment |
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| CN108832019B (en) * | 2018-06-21 | 2020-05-05 | 武汉华星光电半导体显示技术有限公司 | Cover plate for flexible display device and flexible display device |
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| CN109448634A (en) * | 2018-11-13 | 2019-03-08 | 武汉华星光电半导体显示技术有限公司 | The display control method of display device and display device |
| US10795499B2 (en) | 2018-11-13 | 2020-10-06 | Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Display device and method of controlling display images of display device |
| CN111462626A (en) * | 2019-01-22 | 2020-07-28 | 三星显示有限公司 | Foldable display device |
| CN109817687A (en) * | 2019-02-15 | 2019-05-28 | 京东方科技集团股份有限公司 | A kind of flexible base board and OLED display panel |
| CN109817687B (en) * | 2019-02-15 | 2021-10-08 | 京东方科技集团股份有限公司 | Flexible substrate and OLED display panel |
| US11700693B2 (en) | 2019-02-19 | 2023-07-11 | Samsung Electronics Co., Ltd. | Foldable electronic device including flexible printed circuit board |
| US11304300B2 (en) | 2019-02-19 | 2022-04-12 | Samsung Electronics Co., Ltd. | Foldable electronic device including flexible printed circuit board |
| CN109857200A (en) * | 2019-02-28 | 2019-06-07 | 北京小米移动软件有限公司 | Electronic equipment |
| CN112309245A (en) * | 2019-07-26 | 2021-02-02 | 群创光电股份有限公司 | Foldable display device |
| CN110444577A (en) * | 2019-08-14 | 2019-11-12 | 京东方科技集团股份有限公司 | A kind of flexible display panels and display device |
| CN110444577B (en) * | 2019-08-14 | 2021-08-27 | 京东方科技集团股份有限公司 | Flexible display panel and display device |
| CN110570773B (en) * | 2019-09-18 | 2021-06-11 | 昆山工研院新型平板显示技术中心有限公司 | Flexible display panel |
| CN110570773A (en) * | 2019-09-18 | 2019-12-13 | 昆山工研院新型平板显示技术中心有限公司 | Flexible display panel |
| CN111211149A (en) * | 2020-01-08 | 2020-05-29 | 武汉华星光电半导体显示技术有限公司 | Display screen and display device |
| CN111105716A (en) * | 2020-01-08 | 2020-05-05 | 合肥维信诺科技有限公司 | Display device |
| CN111984067A (en) * | 2020-08-31 | 2020-11-24 | 京东方科技集团股份有限公司 | Display device |
| CN111984067B (en) * | 2020-08-31 | 2023-08-29 | 京东方科技集团股份有限公司 | Display device |
| CN113242643A (en) * | 2021-05-17 | 2021-08-10 | 京东方科技集团股份有限公司 | Circuit board and display device |
| CN113242643B (en) * | 2021-05-17 | 2024-01-16 | 京东方科技集团股份有限公司 | Circuit board and display device |
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| CN107564413B (en) | 2020-05-29 |
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