CN104698712B - A kind of array base palte, liquid crystal panel and display device - Google Patents
A kind of array base palte, liquid crystal panel and display device Download PDFInfo
- Publication number
- CN104698712B CN104698712B CN201510160918.7A CN201510160918A CN104698712B CN 104698712 B CN104698712 B CN 104698712B CN 201510160918 A CN201510160918 A CN 201510160918A CN 104698712 B CN104698712 B CN 104698712B
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- array base
- base palte
- data wire
- electrostatic protection
- grid line
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- 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
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136286—Wiring, e.g. gate line, drain line
-
- 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
- G02F1/1345—Conductors connecting electrodes to cell terminals
Abstract
The invention discloses a kind of array base palte, liquid crystal panel and display device, including：Underlay substrate; it is arranged on a plurality of grid line and data wire on underlay substrate; it is arranged on the electrostatic protection loop of one end of at least one grid line or data wire connection corresponding with grid line or data wire; and the short bar positioned at neighboring area for transmitting public voltage signal of connection corresponding with electrostatic protection loop, in addition to：Transparent electrode layer positioned at neighboring area；Transparent electrode layer is electrical connected by via with each short bar；The projection of transparent electrode layer and the grid line or data wire of connection corresponding with each electrostatic protection loop on underlay substrate has overlapping region; filter capacitor is formed in overlapping region; when electrostatic comes interim; electrostatic protection loop is turned on, while electrostatic charge is stored onto filter capacitor, after electrostatic disappears; electrostatic protection loop is not stopped at once; filter capacitor may proceed to maintain its opening, slowly discharge electrostatic charge, and then play a part of electrostatic protection.
Description
Technical field
The present invention relates to display technology field, espespecially a kind of array base palte, liquid crystal panel and display device.
Background technology
At present, common static discharge (Electro-Static Discharge, ESD) phenomenon in liquid crystal display product.ESD
It is a kind of accumulation of static electricity, electrostatic charge is shifted to the phenomenon of release between different objects, the time of Electro-static Driven Comb is very short, general
There is nanosecond grade, electrostatic discharges within the so short time can produce very big immediate current, so high electric current passes through collection
Device will be burnt into during circuit, cause circuit cisco unity malfunction.Therefore, ESD event occurs in liquid crystal display product,
The situation for occurring electrostatic breakdown short circuit or open circuit on periphery design line would generally be caused.
In the design of existing array base palte, as shown in figure 1, the general end by signal wire 001 (grid line or data wire)
End is provided with electrostatic protection loop 002 and connection electrostatic protection loop 002 and is located at neighboring area B short bar 003, when electrostatic comes
Temporarily, electrostatic protection loop 002 is turned on, and the short bar 003 in connection electrostatic protection loop 002 will can exist in the A of viewing area
Electrostatic instantaneous pressure export, yet with produce the electrostatic time it is too fast, when electrostatic one disappears, electrostatic protection loop 002
It is stopped at once, short bar 003 would generally have little time to export electrostatic charge, because the accumulation of electrostatic charge still can occur
The phenomenon of electrostatic breakdown, so as to directly affect the yield of production liquid crystal panel.
Therefore, how protection further to be played a part of to the electrostatic on liquid crystal panel, is that those skilled in the art need badly
The technical problem of solution.
The content of the invention
In view of this, the embodiment of the present invention provides a kind of array base palte, liquid crystal panel and display device, increases in neighboring area
The transparent electrode layer electrically connected with short bar is added, has made to form filter capacitor between transparent electrode layer and signal wire, further serve as
To the effect of electrostatic protection.
Therefore, the embodiments of the invention provide a kind of array base palte, including：Underlay substrate, is arranged on the underlay substrate
On be located at viewing area and surround viewing area neighboring area a plurality of grid line and data wire, be arranged on described at least one
The electrostatic protection loop of one end of grid line or data wire connection corresponding with the grid line or data wire, and with the electrostatic protection
What loop correspondence was connected is located at the neighboring area and the short bar for transmitting public voltage signal, in addition to：Positioned at described
The transparent electrode layer of neighboring area；Wherein,
The transparent electrode layer is electrical connected by via with each short bar；
Projection of the transparent electrode layer on the underlay substrate and connection corresponding with each electrostatic protection loop
The projection of the grid line or data wire on the underlay substrate has overlapping region.
In a kind of possible implementation, in above-mentioned array base palte provided in an embodiment of the present invention, in addition to：It is located at
The pixel electrode of the viewing area；
The transparent electrode layer is with the pixel electrode with layer same material.
In a kind of possible implementation, in above-mentioned array base palte provided in an embodiment of the present invention, the transparent electricity
Pole layer is planar structure or list structure.
In a kind of possible implementation, in above-mentioned array base palte provided in an embodiment of the present invention, the electrostatic is protected
Shield loop is made up of at least two transistor arrangements.
In a kind of possible implementation, in above-mentioned array base palte provided in an embodiment of the present invention, in addition to：Extremely
There is extension on the few grid line or data wire, and projection of the extension on the underlay substrate with it is described short
Projection of the road rod on underlay substrate has overlapping region.
In a kind of possible implementation, in above-mentioned array base palte provided in an embodiment of the present invention, in addition to：It is described
Extension is parallel to each other with the short bar.
In a kind of possible implementation, in above-mentioned array base palte provided in an embodiment of the present invention, in addition to：It is described
The length of extension is less than the beeline between the adjacent grid line or data wire.
The embodiment of the present invention additionally provides a kind of liquid crystal panel, including the opposite substrate and array base palte being oppositely arranged, with
And the liquid crystal layer between the opposite substrate and array base palte；
Wherein, the array base palte is above-mentioned array base palte provided in an embodiment of the present invention.
The embodiment of the present invention additionally provides a kind of display device, including above-mentioned liquid crystal panel provided in an embodiment of the present invention.
The beneficial effect of the embodiment of the present invention includes：
A kind of array base palte provided in an embodiment of the present invention, liquid crystal panel and display device, including：Underlay substrate, is set
On underlay substrate be located at viewing area and surround viewing area neighboring area a plurality of grid line and data wire, be arranged on to
The electrostatic protection loop of few one end of a grid line or data wire connection corresponding with grid line or data wire, and returned with electrostatic protection
What road correspondence was connected is located at neighboring area and the short bar for transmitting public voltage signal, in addition to：Positioned at neighboring area
Transparent electrode layer；Transparent electrode layer is electrical connected by via with each short bar；Projection of the transparent electrode layer on underlay substrate
Projection of the grid line or data wire of corresponding connection on underlay substrate has overlapping region with each electrostatic protection loop, overlapping
Filter capacitor is formed between transparent electrode layer and the grid line or data wire of connection corresponding with each electrostatic protection loop in region, when quiet
Electricity comes interim, the conducting of electrostatic protection loop, while electrostatic charge is stored onto filter capacitor, after electrostatic disappears, electrostatic protection
Loop is not stopped at once, and filter capacitor has cushioning effect, may proceed to maintain its opening, slowly by electrostatic charge
Discharge, and then play a part of electrostatic protection, beneficial to raising product yield.
Brief description of the drawings
Fig. 1 is the top view of array base palte in the prior art；
Fig. 2 a are one of top view of array base palte provided in an embodiment of the present invention；
Fig. 2 b are the two of the top view of array base palte provided in an embodiment of the present invention；
Fig. 3 is the schematic diagram of electrostatic discharge protective circuit in array base palte provided in an embodiment of the present invention；
Fig. 4 a are the three of the top view of array base palte provided in an embodiment of the present invention；
Fig. 4 b are the four of the top view of array base palte provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawings, to the specific reality of array base palte provided in an embodiment of the present invention, liquid crystal panel and display device
The mode of applying is described in detail.
Wherein, the shapes and sizes of each part do not reflect actual proportions in array base palte in accompanying drawing, and purpose is that signal is said
Bright present invention.
The embodiments of the invention provide a kind of array base palte, as shown in figures 2 a and 2b, including：Underlay substrate, is arranged on lining
On substrate be located at viewing area A and surround viewing area A neighboring area B a plurality of grid line and data wire, be arranged on to
The electrostatic protection loop 200, Yi Jiyu of few one end of a grid line or data wire 100 connection corresponding with grid line or data wire 100
What the correspondence of electrostatic protection loop 200 was connected is located at neighboring area B and the short bar 300 for transmitting public voltage signal, also wraps
Include：Positioned at neighboring area B transparent electrode layer 400；Wherein,
The transparent electrode layer 400 is electrical connected by via with each short bar 300；
The grid line of projection and with each electrostatic protection loop 200 corresponding connection of the transparent electrode layer 400 on underlay substrate
Or projection of the data wire 100 on underlay substrate has overlapping region.
It is transparent due to being added in the neighboring area of array base palte in above-mentioned array base palte provided in an embodiment of the present invention
Electrode layer；As shown in figure 3, because the transparent electrode layer is electrical connected by via with each short bar, and transparent electrode layer exists
Projection tool of the grid line or data wire of projection and connection corresponding with each electrostatic protection loop on underlay substrate on underlay substrate
There is overlapping region so that transparent electrode layer and the grid line or data wire of connection corresponding with each electrostatic protection loop in overlapping region
Between form first filter capacitor C, when electrostatic comes interim, electrostatic protection loop conducting, while electrostatic charge storage is to filter
On ripple electric capacity, after electrostatic disappears, electrostatic protection loop is not stopped at once, and filter capacitor has a cushioning effect, can be after
It is continuous to maintain its opening, slowly electrostatic charge is discharged, and then play a part of electrostatic protection.
In the specific implementation, in above-mentioned array base palte provided in an embodiment of the present invention, in addition to：Positioned at viewing area
Pixel electrode；In order on the basis of existing array base palte preparation technology, it is not necessary to increase extra technique transparent to make
Transparent electrode layer, can be set to pixel electrode with layer same material, so can not only save production cost, carry by electrode layer
High efficiency, can also lift the etching homogeneity of pixel electrode figure in viewing area, do not result in due to externally to
There is the problem of pixel electrode figure occurs uneven in viewing area during the etching of inside.
In the specific implementation, in above-mentioned array base palte provided in an embodiment of the present invention, as shown in Figure 2 a, in order to save work
Skill, transparent electrode layer 400 could be arranged to planar structure；Or, as shown in Figure 2 b, in order to save material, transparent electrode layer 400
It could be arranged to list structure.For the setting of transparency electrode Rotating fields, as long as transparent electrode layer is met on underlay substrate
The projection on underlay substrate of grid line or data wire of projection and connection corresponding with each electrostatic protection loop is with overlapping region
Can, it is not limited thereto.
In the specific implementation, in above-mentioned array base palte provided in an embodiment of the present invention, electrostatic protection loop is by least two
Individual transistor arrangement is constituted, and specifically, as shown in Figure 2 a, electrostatic protection loop 200 can include：The first transistor T1 and second
Transistor T2；Wherein, the first transistor T1 grid and source electrode is connected with grid line or data wire 100, drain electrode and short bar 300
Connection；Second transistor T2 grid is connected with source electrode with short bar 300, and drain electrode is connected with grid line or data wire 100.When
So, the concrete structure for electrostatic protection loop has a variety of, can also be other structures, can according to the actual requirements depending on,
This is not construed as limiting.
In the specific implementation, it is as shown in Figs. 4a and 4b in above-mentioned array base palte provided in an embodiment of the present invention, also wrap
Include：On at least one grid line or data wire 100 have extension 500, and the projection of the extension 500 on underlay substrate with
Projection of the short bar 300 on underlay substrate has overlapping region.Prolong due to being added at least one grid line or data wire
Extending portion, and the projection of the extension 500 on underlay substrate have crossover region with projection of the short bar 300 on underlay substrate
Domain so that form second filter capacitor between extension 500 and short bar 300 in overlapping region, so, compared to existing
Play the role of only can just play electrostatic protection after pixel electrode figure is formed in technology, in actual fabrication, the present invention is real
Apply example offer array base palte technique in, formed pixel electrode figure before just can between extension and short bar shape
Into second filter capacitor, so as to serve the effect of second class protection to the electrostatic on liquid crystal panel.
Further, in the specific implementation, in above-mentioned array base palte provided in an embodiment of the present invention, such as Fig. 4 a and 4b institutes
Show, in order to ensure that projection of the extension 500 on underlay substrate and projection of the short bar 300 on underlay substrate have crossover region
Domain, extension 500 can be parallel to each other with short bar 300.Certainly, in the specific implementation, the position of extension and short bar is closed
System can according to the actual requirements depending on, be not limited thereto.
Further, in the specific implementation, in above-mentioned array base palte provided in an embodiment of the present invention, such as Fig. 4 a and 4b institutes
Show, in order to which anti-stop signal is disturbed, the length of extension 500 is less than the beeline between adjacent grid line or data wire 100, it is to avoid
Extension extends to the problem of causing signal cross-talk on another grid line or data wire.
The preparation method that array base palte provided in an embodiment of the present invention is described in detail with a specific example below, tool
Body comprises the following steps：
1st, the figure of common electrode layer is formed on underlay substrate；
In the specific implementation, one layer of ITO layer is deposited on underlay substrate, passes through the figure of patterning processes formation common electrode layer
Shape；
2nd, it is being formed with the figure of formation grid and grid line on the underlay substrate of public electrode layer pattern；
In the specific implementation, one layer of gate metal layer is deposited on underlay substrate, passes through patterning processes formation grid and grid
The figure of line；
3rd, insulating barrier is formed being formed with the underlay substrate of grid and grid line figure；
4th, active layer is formed on the insulating layer；
5th, the figure of source-drain electrode layer and data wire is formed with active layer；
In the specific implementation, one layer of source-drain electrode metal level is deposited on active layer, passes through patterning processes formation source-drain electrode layer
With the figure of data wire；
6th, passivation layer is formed on source-drain electrode layer and data wire；
7th, pixel electrode and the figure of transparency electrode are formed on the figure for be formed with passivation layer；
In the specific implementation, one layer of ITO layer is deposited on the figure of passivation layer, by same patterning processes, respectively aobvious
Show that region forms the figure of pixel electrode, and the figure of transparency electrode is formed in neighboring area；Wherein, transparency electrode is with being located at
The data wire of neighboring area and transmission common electrode signal is electrical connected by via.
So far, the above-mentioned steps 1 to 7 provided by specific example have produced above-mentioned battle array provided in an embodiment of the present invention
Row substrate.
Based on same inventive concept, the embodiment of the present invention additionally provides a kind of liquid crystal panel, including any of the above-described kind of mode
Array base palte and the opposite substrate that is oppositely arranged with the array base palte, and the liquid between array base palte and opposite substrate
Crystal layer.The implementation of the liquid crystal panel may refer to the embodiment of above-mentioned array base palte, repeats part and repeats no more.
Based on same inventive concept, the embodiment of the present invention additionally provides a kind of display device, including the embodiment of the present invention is carried
The above-mentioned liquid crystal panel supplied, the display device can be：Mobile phone, tablet personal computer, television set, display, notebook computer, number
Any product or part with display function such as photo frame, navigator.For other essential compositions of the display device
Part is that it will be apparent to an ordinarily skilled person in the art that have, will not be described here, and also be should not be used as to the present invention's
Limitation.The implementation of the display device may refer to the embodiment of above-mentioned liquid crystal panel, repeats part and repeats no more.
A kind of array base palte provided in an embodiment of the present invention, liquid crystal panel and display device, including：Underlay substrate, is set
On underlay substrate be located at viewing area and surround viewing area neighboring area a plurality of grid line and data wire, be arranged on to
The electrostatic protection loop of few one end of a grid line or data wire connection corresponding with grid line or data wire, and returned with electrostatic protection
What road correspondence was connected is located at neighboring area and the short bar for transmitting public voltage signal, in addition to：Positioned at neighboring area
Transparent electrode layer；Transparent electrode layer is electrical connected by via with each short bar；Projection of the transparent electrode layer on underlay substrate
Projection of the grid line or data wire of corresponding connection on underlay substrate has overlapping region with each electrostatic protection loop, overlapping
Filter capacitor is formed between transparent electrode layer and the grid line or data wire of connection corresponding with each electrostatic protection loop in region, when quiet
Electricity comes interim, the conducting of electrostatic protection loop, while electrostatic charge is stored onto filter capacitor, after electrostatic disappears, electrostatic protection
Loop is not stopped at once, and filter capacitor has cushioning effect, may proceed to maintain its opening, slowly by electrostatic charge
Discharge, and then play a part of electrostatic protection, beneficial to raising product yield.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (9)
1. a kind of array base palte, including：Underlay substrate, is arranged on the underlay substrate and is located at viewing area and encirclement display
The a plurality of grid line and data wire of the neighboring area in region, are arranged on one end and the grid of grid line described at least one or data wire
Line or the electrostatic protection loop of data wire correspondence connection, and connection corresponding with the electrostatic protection loop positioned at the periphery
Region and the short bar for transmitting public voltage signal, it is characterised in that also include：Transparent electricity positioned at the neighboring area
Pole layer；Wherein,
The transparent electrode layer is electrical connected by via with each short bar；
Described in projection of the transparent electrode layer on the underlay substrate and connection corresponding with each electrostatic protection loop
The projection of grid line or data wire on the underlay substrate has overlapping region.
2. array base palte as claimed in claim 1, it is characterised in that also include：Pixel electrode positioned at the viewing area；
The transparent electrode layer is with the pixel electrode with layer same material.
3. array base palte as claimed in claim 2, it is characterised in that the transparent electrode layer is planar structure or strip knot
Structure.
4. array base palte as claimed in claim 1, it is characterised in that the electrostatic protection loop is by least two transistor junctions
Structure is constituted.
5. array base palte as claimed in claim 1, it is characterised in that also include：In grid line described at least one or data wire
It is upper that there is extension, and projection and short bar projection on underlay substrate of the extension on the underlay substrate
With overlapping region.
6. array base palte as claimed in claim 5, it is characterised in that the extension is parallel to each other with the short bar.
7. array base palte as claimed in claim 6, it is characterised in that the length of the extension be less than the adjacent grid line or
Less than the beeline between adjacent data line.
8. a kind of liquid crystal panel, it is characterised in that including the opposite substrate and array base palte being oppositely arranged, and positioned at described right
To the liquid crystal layer between substrate and array base palte；
Wherein, the array base palte is the array base palte described in claim any one of 1-7.
9. a kind of display device, it is characterised in that including liquid crystal panel as claimed in claim 8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510160918.7A CN104698712B (en) | 2015-04-07 | 2015-04-07 | A kind of array base palte, liquid crystal panel and display device |
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| CN201510160918.7A CN104698712B (en) | 2015-04-07 | 2015-04-07 | A kind of array base palte, liquid crystal panel and display device |
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| CN104698712A CN104698712A (en) | 2015-06-10 |
| CN104698712B true CN104698712B (en) | 2017-10-10 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104991390B (en) * | 2015-07-28 | 2018-06-22 | 上海中航光电子有限公司 | The driving circuit of display panel, the display panel and display for including it |
| CN106200172B (en) * | 2016-07-14 | 2020-06-02 | 京东方科技集团股份有限公司 | Array substrate and display device |
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|---|---|---|---|---|
| JP2000338514A (en) * | 1999-05-31 | 2000-12-08 | Hitachi Ltd | Liquid crystal display device |
| TW200405242A (en) * | 2002-07-05 | 2004-04-01 | Chi Mei Optoelectronics Corp | Image display element and image display device |
| CN102629049A (en) * | 2011-07-18 | 2012-08-08 | 京东方科技集团股份有限公司 | Electrostatic protection structure, array substrate, liquid crystal panel and display device |
| CN103943611A (en) * | 2013-02-22 | 2014-07-23 | 上海天马微电子有限公司 | Array substrate and panel |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100939221B1 (en) * | 2006-06-05 | 2010-01-28 | 엘지디스플레이 주식회사 | Liquid crystal display and fabricating method thereof |
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2015
- 2015-04-07 CN CN201510160918.7A patent/CN104698712B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000338514A (en) * | 1999-05-31 | 2000-12-08 | Hitachi Ltd | Liquid crystal display device |
| TW200405242A (en) * | 2002-07-05 | 2004-04-01 | Chi Mei Optoelectronics Corp | Image display element and image display device |
| CN102629049A (en) * | 2011-07-18 | 2012-08-08 | 京东方科技集团股份有限公司 | Electrostatic protection structure, array substrate, liquid crystal panel and display device |
| CN103943611A (en) * | 2013-02-22 | 2014-07-23 | 上海天马微电子有限公司 | Array substrate and panel |
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