CN107068727A - Display base plate and display device - Google Patents
Display base plate and display device Download PDFInfo
- Publication number
- CN107068727A CN107068727A CN201710311883.1A CN201710311883A CN107068727A CN 107068727 A CN107068727 A CN 107068727A CN 201710311883 A CN201710311883 A CN 201710311883A CN 107068727 A CN107068727 A CN 107068727A
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- Prior art keywords
- area
- signal wire
- base plate
- display
- electrode
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Classifications
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/131—Interconnections, e.g. wiring lines or terminals
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/131—Interconnections, e.g. wiring lines or terminals
- H10K59/1315—Interconnections, e.g. wiring lines or terminals comprising structures specially adapted for lowering the resistance
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The present invention provides a kind of display base plate, including substrate, the substrate includes viewing area and the non-display area around the viewing area, the non-display area is provided with signal wire, the viewing area is provided with multiple luminescence units, first electrode layer is additionally provided with above the substrate, the first electrode layer includes electrode portion and transport part, the electrode area is in viewing area and is arranged on above multiple luminescence units, the transport part is located at non-display area and is arranged on the upper surface of the signal wire, the area for the part that the signal wire is in contact with the transport part is more than the frontal projected area of the part over the substrate.Correspondingly, the present invention also provides a kind of display device.The present invention can either realize narrow frame, and IR drop can be reduced again.
Description
Technical field
The present invention relates to display technology field, and in particular to a kind of display base plate and display device.
Background technology
Organic electroluminescent (Organic Light Emitting Diode, abbreviation OLED) device, because its have it is spontaneous
The advantages of light, rich color, fast response time, wide, lightweight visual angle, thickness of thin, little power consumption, achievable Flexible Displays, by
Therefore extensive concern, also have before huge application using organic electroluminescence display device and method of manufacturing same made from organic electroluminescence device
Scape.
Fig. 1 is the structural representation of display base plate in existing organic electroluminescence display device and method of manufacturing same, and Fig. 2 is first in Fig. 1
The contact portion schematic diagram of electrode layer and signal wire, with reference to shown in Fig. 1 and Fig. 2, sets multiple luminescence units 13 above substrate, many
Individual luminescence unit 13 shares a first electrode layer 11, one second electrode 12 of each correspondence of luminescence unit 13, second electrode 12
Apply with first electrode layer 11 after driving voltage, form electric current between first electrode layer 11 and second electrode 12, flow through luminous
The luminescent layer of unit 13, realizes luminous and shows.Wherein, be first electrode layer 11 provide voltage signal wire 14 be arranged on it is non-aobvious
Show area, a part for first electrode layer 11 is arranged on the surface of signal wire 14, to realize electrical connection.If the width of signal wire 14
It is smaller, then be conducive to the realization of narrow frame, but first electrode layer 11 and the contact area of signal wire 14 can be caused smaller, contact electricity
Resistance increase, so as to increase IR drop (resistance drop), increases the power consumption of display device；If reducing IR drop to increase
Big first electrode layer 11 and the contact area of signal wire 14, and due to the length of signal wire 14 be it is certain, therefore, contact area
Increase be accomplished by increase the width of signal wire 14, so that narrow frame can not be realized.
Therefore, how IR drop are reduced while narrow frame is realized, as this area technical problem urgently to be resolved hurrily.
The content of the invention
It is contemplated that at least solving one of technical problem present in prior art, it is proposed that a kind of display base plate and aobvious
Showing device, to reduce IR drop while narrow frame is realized.
One of in order to solve the above-mentioned technical problem, the present invention provides a kind of display base plate, including substrate, and the substrate includes
Viewing area and the non-display area around the viewing area, the non-display area are provided with signal wire, and the viewing area is provided with many
First electrode layer is additionally provided with above individual luminescence unit, the substrate, the first electrode layer includes electrode portion and transport part, institute
Electrode area is stated in viewing area and is arranged on above multiple luminescence units, the transport part is located at non-display area and is arranged on described
The upper surface of signal wire, the area for the part that the signal wire is in contact with the transport part is more than the part over the substrate
Frontal projected area.
Preferably, insulating barrier is additionally provided with above the substrate, the luminescence unit is arranged on above insulating barrier, it is described exhausted
The surface area of edge layer part corresponding with the transport part is more than the frontal projected area of the part over the substrate, the signal
Line is the uniform film layer of thickness distribution, and is formed in the upper surface of the insulating barrier.
Preferably, the surface of insulating barrier part corresponding with the transport part is to be formed with raised and depression table
Face.
Preferably, described raised and depression surface is cambered surface.
Preferably, the one-to-one second electrode of the luminescence unit is additionally provided with the insulating barrier upper surface, it is described
Second electrode is arranged on the upper surface of insulating barrier, and the luminescence unit is arranged on the upper surface of corresponding second electrode, described
Two electrodes are identical with the material of the signal wire.
Preferably, the display base plate also includes being arranged on the pixel defining layer above the insulating barrier, pixel circle
Given layer is located at multiple openings that the pixel defining layer is provided through in the viewing area, the pixel defining layer, described to open
Mouth is corresponded with the luminescence unit, and the luminescence unit is arranged in corresponding opening.
Preferably, the signal wire is made of metal material.
Preferably, the signal wire is low level signal line.
Correspondingly, the present invention also provides a kind of display device, including the above-mentioned display base plate that the present invention is provided.
Preferably, the display device also includes the cover plate that is oppositely arranged with the display base plate, the display base plate with
Sealant is provided between the cover plate, the sealant is located at the non-display area, and the signal wire is located at the viewing area
Between the sealant.
In the present invention, the area for the part being in contact due to the transport part of signal wire and first electrode layer is more than the part
Frontal projected area over the substrate, therefore, and is compared in the prior art, and the length of the signal wire in the present invention is certain, institute
The contact area of the timing of width one of the non-display area of occupancy, first electrode layer and signal wire is bigger, so as to reduce contact electricity
Resistance, and then IR drop are reduced, therefore, the display base plate that the present invention is provided can either realize narrow frame, and IR can be reduced again
drop。
Because display device uses display base plate, therefore, the display device can realize narrow frame, while reducing work(
Consumption.
Brief description of the drawings
Accompanying drawing is, for providing a further understanding of the present invention, and to constitute a part for specification, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the part-structure schematic diagram of array base palte of the prior art；
Fig. 2 is the contact portion schematic diagram of first electrode layer and signal wire in Fig. 1；
Fig. 3 is the region division schematic diagram for the display base plate that the present invention is provided；
Fig. 4 is the part-structure schematic diagram for the display base plate that the present invention is provided；
Fig. 5 is the contact portion schematic diagram of first electrode layer and signal wire in Fig. 4.
Wherein, reference is：
10th, substrate；11st, first electrode layer；11a, electrode portion；11b, transport part；12nd, second electrode；13rd, luminescence unit；
14th, signal wire；15th, pixel defining layer；16th, insulating barrier；17th, sealant.
Embodiment
The embodiment of the present invention is described in detail below in conjunction with accompanying drawing.It should be appreciated that this place is retouched
The embodiment stated is merely to illustrate and explain the present invention, and is not intended to limit the invention.
As an aspect of of the present present invention there is provided a kind of display base plate, Fig. 3 is the array base palte Shang Ge areas that the present invention is provided
Domain divides schematic diagram；Fig. 4 is the part-structure schematic diagram of array base palte；Fig. 5 is connecing for first electrode layer in Fig. 4 and signal wire
Touch partial schematic diagram.With reference to shown in Fig. 3 to Fig. 5, the display base plate includes substrate 10, and substrate 10 includes viewing area (A areas) and ring
Non-display area (B areas) around the viewing area, non-display area (B areas) is provided with signal wire 14, and viewing area (A areas) is provided with multiple
Luminescence unit 13.The top of substrate 10 is additionally provided with first electrode layer 11, and first electrode layer 11 includes electrode portion 11a and transport part
11b, electrode portion 11a are located at viewing area (A areas) and are arranged on multiple tops of luminescence unit 13, and transport part 11b is located at non-display area
(B areas) and the upper surface for being arranged on signal wire 14, wherein, signal wire 14 is more than with the area of the transport part 11b parts being in contact
The frontal projected area of the part over the substrate 10.
On the one hand, the area that first electrode layer 11 is in contact with signal wire 14 is bigger, then first electrode layer 11 and signal wire
Contact resistance between 14 is just smaller, and resistance drop is just smaller；On the other hand, first electrode layer 11 and the contact portion of signal wire 14
It is to be located at non-display area, the width of the orthographic projection of this part over the substrate 10 is smaller, then the non-display area shared by signal wire 14
Width is smaller, is conducive to the realization of narrow frame.In the present invention, due to signal wire 14 and the transport part 11b of first electrode layer 11
The area for the part being in contact is more than frontal projected area of the part on the substrate 10, therefore, and compares in the prior art,
The timing of width one of certain, the shared non-display area of the length of signal wire 14 in the present invention, first electrode layer 11 and signal
The contact area of line 14 is bigger, so as to reduce contact resistance, and then reduces IR drop, therefore, the display that the present invention is provided
Substrate can either realize narrow frame, and IR drop can be reduced again.
Luminescence unit 13 can be organic electroluminescence cell (OLED), and the top of substrate 10 is additionally provided with pixel defining layer
15, as shown in figure 4, pixel defining layer 15 is located at viewing area (A areas), pixel defining layer 15 is provided through in pixel defining layer 15
Multiple openings, the opening corresponded with luminescence unit 13, and luminescence unit 13 is arranged in corresponding opening.Luminescence unit
13 lower sections are also provided with and 12 points of the one-to-one second electrode of luminescence unit 13 12, first electrode layer 11 and second electrode
Not Wei luminescence unit 13 negative electrode and anode, when applying positive and negative electric signal respectively in second electrode 12 and first electrode layer 11,
Luminescence unit 13 lights.Thin film transistor (TFT) (not shown) and insulating barrier 16 are additionally provided with substrate 10, thin film transistor (TFT) is with lighting
Unit 13 is corresponded, and second electrode 12 is arranged on the upper surface of insulating barrier 16, and luminescence unit 13 is arranged on corresponding second electricity
The upper surface of pole 12, second electrode 12 and the via (not shown) and the drain electrode phase of the thin film transistor (TFT) of lower section through insulating barrier 16
Even.The upper surface that insulating barrier 16 is located at viewing area could be arranged to flat surface, in order to the setting of second electrode 12.
The present invention can cause signal wire 14 to be more than with the area of the transport part 11b parts being in contact in different ways
The frontal projected area of the part over the substrate 10, for example, when signal line layer 14 is located on flat surface, by signal wire 14
Upper surface is set to rough surface.Preferably, the surface area of the part corresponding with transport part 11b of insulating barrier 16, which is more than, is somebody's turn to do
Frontal projected area of the part on the substrate 10, signal wire 14 is the uniform film layer of thickness distribution, and signal wire 14 is formed exhausted
The upper surface of edge layer 16.Further, as shown in Figure 4 and Figure 5, the surface of the part corresponding with transport part 11b of insulating barrier 16 is
It is formed with raised and depression surface.Formed on insulating barrier 16 directly can pass through halftoning with raised and depression surface
Mask plate (half-tone mask) is exposed to insulating barrier 16, then the mode developed is formed so that correspondence after development
The segment thickness of insulating barrier 16 corresponding to the semi-opaque region of intermediate tone mask plate, full transparent area and light tight area is respectively different,
So as to form raised and depression.Compared with the upper surface of signal wire 14 is set into rough surface, in insulating barrier 16
The upper depression and raised mode of being formed need not be performed etching, and the projection of formation and the shape of depression are easier control.In addition, working as
When array base palte is applied in display device, the setting of depression and projection causes the path that extraneous steam enters inside display device
It is elongated, the lateral intrusion of steam is effectively prevented, extends the service life of display device.
Further, raised and depression surface is cambered surface.Surface is provided with the insulating barrier of arc convex and depression
16 are considered as, along the length direction and/or width of signal wire 14, by the portion corresponding with transport part 11b of insulating barrier 16
Point to be set to waveform this with the surface seamlessly transitted for upper surface, so as to be subsequently formed signal wire 14 and first electrode
During layer 11, signal wire 14 and first electrode layer 11 is prevented to be broken.In actual applications, it can be set according to specific product
Raised and depression difference in height is put, so as in the case where the width of signal wire 14 is certain, increase signal wire 14 and first as far as possible
The contact area of electrode layer 11, while first electrode layer 11 is broken.
It is of course also possible to the surface of the part corresponding with transport part 11b of insulating barrier 16 is set into inclined inclined-plane, so
It is also possible that the surface area of the part corresponding with transport part 11b of insulating barrier 16 is more than the frontal plane of projection of the part over the substrate 10
Product.
In the present invention, second electrode 12 can be anode, and first electrode layer 11 can be negative electrode, correspondingly, signal wire
14 be low level signal line.Preferably, second electrode 12 is arranged on the upper surface of insulating barrier 16, and second electrode 12 and signal wire 14
Material it is identical, i.e., second electrode 12 and signal wire 14 are set with layer and material is identical, so that second electrode 12 and signal
Line 14 can be made using same step patterning processes, and then reduce processing step, improve production efficiency and reduction production cost.Enter
One step, signal wire 14 is made of metal material, with the resistance of signal wire 14, reduces the power consumption of display device.
As another aspect of the present invention, there is provided a kind of display device, including above-mentioned display base plate.The display device is also
Including the cover plate being oppositely arranged with display base plate, envelope frame is provided between the organic electroluminescent display substrate and the cover plate
Glue 17, as shown in Figure 3 and Figure 4, sealant 17 are located at non-display area (B areas), and signal wire 14 is located at viewing area (A areas) and sealant
C areas between 17.
The display device can have display function for mobile phone, display, tablet personal computer, Electronic Paper, digital photo frame etc.
Product or device.
The above-mentioned description for the display base plate of the invention provided and display device, it can be seen that the letter on display base plate
The area that number line is in contact with the transport part of first electrode layer is more than surface area of the part on substrate, so as to reality
Existing narrow frame, can reduce IR drop again, and by being set to have on the surface of insulating barrier part corresponding with transport part
The mode on raised and depression surface so that the area that signal wire is in contact with the transport part of first electrode layer is more than the portion
Divide the surface area on substrate, and raised and depression surface is cambered surface, so as to simplify manufacture craft, and prevents first
Electrode layer and signal wire are broken, and at the same time it can also prevent external steam from entering inside display device, extend the display device longevity
Life.
It is understood that the principle that embodiment of above is intended to be merely illustrative of the present and the exemplary implementation that uses
Mode, but the invention is not limited in this.For those skilled in the art, the essence of the present invention is not being departed from
In the case of refreshing and essence, various changes and modifications can be made therein, and these variations and modifications are also considered as protection scope of the present invention.
Claims (10)
1. a kind of display base plate, including substrate, the substrate include viewing area and the non-display area around the viewing area, described
Non-display area is provided with signal wire, and the viewing area, which is provided with above multiple luminescence units, the substrate, is additionally provided with the first electricity
Pole layer, the first electrode layer includes electrode portion and transport part, and the electrode area is in viewing area and is arranged on multiple luminous lists
First top, the transport part is located at non-display area and is arranged on the upper surface of the signal wire, it is characterised in that the signal wire
The area for the part being in contact with the transport part is more than the frontal projected area of the part over the substrate.
2. display base plate according to claim 1, it is characterised in that be additionally provided with insulating barrier above the substrate, described
Luminescence unit is arranged on above insulating barrier, and the surface area of insulating barrier part corresponding with the transport part exists more than the part
Frontal projected area on the substrate, the signal wire is the uniform film layer of thickness distribution, and is formed in the upper of the insulating barrier
Surface.
3. display base plate according to claim 2, it is characterised in that insulating barrier part corresponding with the transport part
Surface be to be formed with raised and depression surface.
4. display base plate according to claim 3, it is characterised in that described raised and depression surface is cambered surface.
5. display base plate according to claim 2, it is characterised in that be additionally provided with the hair on the insulating barrier upper surface
The one-to-one second electrode of light unit, the second electrode is arranged on the upper surface of insulating barrier, and the luminescence unit is arranged on
The upper surface of corresponding second electrode, the second electrode is identical with the material of the signal wire.
6. display base plate according to claim 2, it is characterised in that the display base plate also includes being arranged on the insulation
Pixel defining layer above layer, the pixel defining layer, which is located in the viewing area, the pixel defining layer, is provided through institute
Multiple openings of pixel defining layer are stated, the opening is corresponded with the luminescence unit, and the luminescence unit is arranged on accordingly
Opening in.
7. display base plate according to claim 1, it is characterised in that the signal wire is made of metal material.
8. display base plate according to claim 1, it is characterised in that the signal wire is low level signal line.
9. a kind of display device, it is characterised in that including the display base plate described in any one in claim 1 to 8.
10. display device according to claim 9, it is characterised in that the display device also includes and the display base
The cover plate that plate is oppositely arranged, is provided with sealant between the display base plate and the cover plate, the sealant is located at described non-
Viewing area, the signal wire is located between the viewing area and the sealant.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710311883.1A CN107068727A (en) | 2017-05-05 | 2017-05-05 | Display base plate and display device |
| PCT/CN2018/080904 WO2018201828A1 (en) | 2017-05-05 | 2018-03-28 | Display substrate and display apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710311883.1A CN107068727A (en) | 2017-05-05 | 2017-05-05 | Display base plate and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107068727A true CN107068727A (en) | 2017-08-18 |
Family
ID=59597154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710311883.1A Pending CN107068727A (en) | 2017-05-05 | 2017-05-05 | Display base plate and display device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107068727A (en) |
| WO (1) | WO2018201828A1 (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108461393A (en) * | 2018-05-07 | 2018-08-28 | 京东方科技集团股份有限公司 | Preparation method, display base plate and the display device of display base plate |
| CN108649063A (en) * | 2018-07-25 | 2018-10-12 | 京东方科技集团股份有限公司 | A kind of oled substrate, display panel |
| WO2018201828A1 (en) * | 2017-05-05 | 2018-11-08 | 京东方科技集团股份有限公司 | Display substrate and display apparatus |
| CN109037279A (en) * | 2018-07-23 | 2018-12-18 | 武汉华星光电半导体显示技术有限公司 | A kind of display panel |
| CN109410823A (en) * | 2018-12-27 | 2019-03-01 | 厦门天马微电子有限公司 | Display panel and display device |
| CN109904205A (en) * | 2019-03-15 | 2019-06-18 | 昆山国显光电有限公司 | A kind of display panel and display device |
| CN109994534A (en) * | 2019-04-23 | 2019-07-09 | 武汉华星光电半导体显示技术有限公司 | The peripheral circuit structure and OLED display panel of OLED display panel |
| CN110071165A (en) * | 2019-05-14 | 2019-07-30 | 京东方科技集团股份有限公司 | Array substrate, manufacturing method thereof and display panel |
| CN110265467A (en) * | 2019-06-28 | 2019-09-20 | 京东方科技集团股份有限公司 | Array substrate and its manufacturing method, display panel and display device |
| CN110277412A (en) * | 2019-07-04 | 2019-09-24 | 武汉华星光电技术有限公司 | Display panel and preparation method thereof |
| CN110323196A (en) * | 2019-05-09 | 2019-10-11 | 京东方科技集团股份有限公司 | A kind of display base plate and preparation method thereof, display device |
| CN110473896A (en) * | 2018-05-11 | 2019-11-19 | 上海和辉光电有限公司 | A kind of display panel and display device |
| CN110473977A (en) * | 2019-08-22 | 2019-11-19 | 湖畔光电科技（江苏）有限公司 | A kind of OLED structure and preparation method thereof promoting packaging effect |
| CN110970462A (en) * | 2018-09-29 | 2020-04-07 | 京东方科技集团股份有限公司 | Display substrate, manufacturing method thereof and display device |
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| US11183520B2 (en) | 2019-07-04 | 2021-11-23 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Display panel with insulating stripes in non-display area and method of fabricating thereof |
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| CN108461393B (en) * | 2018-05-07 | 2021-03-16 | 京东方科技集团股份有限公司 | Preparation method of display substrate, display substrate and display device |
| CN108461393A (en) * | 2018-05-07 | 2018-08-28 | 京东方科技集团股份有限公司 | Preparation method, display base plate and the display device of display base plate |
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| CN109994534A (en) * | 2019-04-23 | 2019-07-09 | 武汉华星光电半导体显示技术有限公司 | The peripheral circuit structure and OLED display panel of OLED display panel |
| CN110323196A (en) * | 2019-05-09 | 2019-10-11 | 京东方科技集团股份有限公司 | A kind of display base plate and preparation method thereof, display device |
| CN110323196B (en) * | 2019-05-09 | 2021-11-16 | 京东方科技集团股份有限公司 | Display substrate, preparation method thereof and display device |
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| CN110265467A (en) * | 2019-06-28 | 2019-09-20 | 京东方科技集团股份有限公司 | Array substrate and its manufacturing method, display panel and display device |
| US11871632B2 (en) | 2019-06-28 | 2024-01-09 | Chengdu Boe Optoelectronics Technology Co., Ltd. | Array substrate and manufacturing method thereof, display panel and display device |
| CN110277412A (en) * | 2019-07-04 | 2019-09-24 | 武汉华星光电技术有限公司 | Display panel and preparation method thereof |
| CN110277412B (en) * | 2019-07-04 | 2021-09-03 | 武汉华星光电技术有限公司 | Display panel and manufacturing method thereof |
| US11183520B2 (en) | 2019-07-04 | 2021-11-23 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Display panel with insulating stripes in non-display area and method of fabricating thereof |
| CN110473977A (en) * | 2019-08-22 | 2019-11-19 | 湖畔光电科技（江苏）有限公司 | A kind of OLED structure and preparation method thereof promoting packaging effect |
| WO2021103620A1 (en) * | 2019-11-25 | 2021-06-03 | 昆山国显光电有限公司 | Display panel |
| JP7299357B2 (en) | 2019-11-25 | 2023-06-27 | 昆山国顕光電有限公司 | display panel |
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| WO2018201828A1 (en) | 2018-11-08 |
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