CN103927046A - Touch display panel and touch display device - Google Patents
Touch display panel and touch display device Download PDFInfo
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- CN103927046A CN103927046A CN201310749651.6A CN201310749651A CN103927046A CN 103927046 A CN103927046 A CN 103927046A CN 201310749651 A CN201310749651 A CN 201310749651A CN 103927046 A CN103927046 A CN 103927046A
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Abstract
The invention provides a touch display panel comprising a substrate, a conducting layer, a color barrier insulating layer, and a connection layer. The conducting layer is formed on the substrate and comprises a plurality of first-directional electrodes and a plurality of second-directional electrodes intersecting with the first-directional electrodes in an insulated manner. Each second-directional electrode is divided into multiple segments by the first-directional electrodes. The color barrier insulating layer is spread on the conducting layer and comprises red, green and blue color barrier units and a plurality of vias; the color barrier units the same in color are arranged to form a color barrier; the color barriers include green barriers; the connection layer is formed on the color barrier insulating layer; the connection layer is used for connecting the segments of the second-directional electrodes through the vias; the vias are not arranged in the green barriers. The touch display panel, at least, has the advantages that the problem that the vias in the green barriers reflect light so that connection layer cross-bridge is recognizable to human eyes is solved, brightness of displayed images can be uniformized and image quality is improved.
Description
Technical field
The present invention relates to display technique field, relate in particular to a kind of touch-control display panel and touch control display apparatus.
Background technology
Along with the develop rapidly of display technique, touch-screen (Touch Panel) spreads all in people's life gradually.With the traditional monitor of Presentation Function only can be provided compare, use the display of touch-screen can make user and show between main control system to carry out information interaction, therefore, touch-control is touched screen can be completely or replaced at least partly conventional input media, existing display not only can be shown, can also touch control.
But, in actual application, to find, touch-screen is the bright problem secretly differing because touch-control display panel display frame has, and causes touch-screen figure bad as seen, so, has affected display effect, has reduced display quality.
Summary of the invention
In view of this, the invention provides a kind of touch-control display panel and touch control display apparatus.
The embodiment of the present invention provides a kind of touch-control display panel, comprising: a transparency carrier; Be formed at the conductive layer on described transparency carrier, described conductive layer comprises many first direction electrodes and many second direction electrodes that intersect with described many first direction electrode insulations, and described in each, second direction electrode is divided into multistage by described many first direction electrodes; Be laid in the color blocking insulation course on described conductive layer, described color blocking insulation course comprises a plurality of red color resistance unit, green color blocking unit and blue color blocking unit, and a color blocking bar is lined up in the color blocking unit of same color; Described color blocking bar comprises green color blocking bar, and described color blocking insulation course also comprises a plurality of via holes; Be formed at the articulamentum on described color blocking insulation course, described articulamentum links together the multistage of described second direction electrode by described via hole; Wherein, all described via holes are not positioned at described green color blocking bar.
Accordingly, the present invention also provides a kind of touch control display apparatus, comprises touch-control display panel as above; And the tft array substrate being oppositely arranged with described touch-control display panel.
The embodiment of the present invention at least can reach one of following beneficial effect:
The touch-control display panel that the embodiment of the present invention provides and touch control display apparatus, utilize color blocking insulation course to keep first direction electrode and second direction electrode to be electrically insulated, articulamentum links together the multistage of described second direction electrode by the via hole on described color blocking insulation course, and all described via holes are not positioned at described green color blocking bar, so, make the via hole of articulamentum avoid the high green color blocking bar of penetrance, thereby avoided the reflection ray in via hole to cause that the pixel of articulamentum (bridge) neighboring area shows the problem brighter than other regions, that is the unnecessary light path that forms of the via hole reflection ray of having avoided green color blocking bar place, thereby solved by the via hole reflection ray on green color blocking bar and caused the discernible problem of articulamentum bridge human eye, make the bright dark homogeneous of display frame, improved display frame quality.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the index path of touch control display apparatus;
The sectional view of the touch-control display panel that Fig. 2 provides for the embodiment of the present invention one;
The conductive layer of touch-control display panel and the vertical view of articulamentum that Fig. 3 provides for the embodiment of the present invention one;
The vertical view of the color blocking insulation course of the touch-control display panel that Fig. 4 provides for the embodiment of the present invention one;
The vertical view of the color blocking insulation course of the another kind of structure of the touch-control display panel that Fig. 5 provides for the embodiment of the present invention one;
The index path of the touch control display apparatus that Fig. 6 provides for the embodiment of the present invention two;
In the touch-control display panel that Fig. 7 provides for the embodiment of the present invention one, the penetrance of light in different colours color blocking bar is with the change curve of different colours wavelength of light;
In the touch control display apparatus that Fig. 8 provides for the embodiment of the present invention one, the penetrance of normal light path and unnecessary light path is with the curve of change of distance between touch-control display panel and tft array substrate.
Embodiment
Inventor studies discovery, and it is mainly to be caused by the via hole on the green color blocking bar of touch-control display panel that touch control display apparatus exists the bright problem secretly differing of display frame.
Concrete, as shown in Figure 1, touch control display apparatus comprises touch-control display panel 1 and the tft array substrate 2 being oppositely arranged, touch-control display panel 1 comprises, tft array substrate 2 comprises, light major part is from the outside directive touch-control display panel 1 of tft array substrate 2, wherein, light first penetrates the drain electrode 108 of source electrode 106 and the TFT of TFT, then penetrate color blocking insulation course 101, enter human eye, but have sub-fraction light from the source electrode 106 of TFT and drain electrode 108 respectively with the gap 107 directive touch-control display panels 1 of grid 109, be that light is through gap 107, then arrive the via hole 104 on color blocking insulation course 101, in via hole, be formed with the bridge 103 of articulamentum.Restriction due to technique, via hole 104 is generally truncated cone-shaped, it is the sidewall slope of via hole 104, and via hole 104 is greater than the opening diameter towards black matrix" 102 towards the opening diameter of tft array substrate, therefore cause the light that arrives via hole 104 places to be reflected by via sidewall, the abnormal light path that this reflected light forms and all the other normal light path stacks enter human eye.Light is all larger in the penetrance of red look color blocking bar or blue color blocking bar than light in the penetrance of green color blocking bar, when the via hole 104 on color blocking insulation course 101 is just in time positioned at the high green color blocking bar of penetrance, make the pixel of bridge 103 neighboring areas show brighter than other regions, and be identified by the human eye, show to be in display frame and brightly secretly differ, so, affect display effect, reduced display quality.
Based on this, the invention provides a kind of touch-control display panel, comprising: a transparency carrier; Be formed at the conductive layer on described transparency carrier, described conductive layer comprises many first direction electrodes and many second direction electrodes that intersect with described many first direction electrode insulations, and described in each, second direction electrode is divided into multistage by described many first direction electrodes; Be laid in the color blocking insulation course on described conductive layer, described color blocking insulation course comprises a plurality of red color resistance unit, green color blocking unit and blue color blocking unit, and a color blocking bar is lined up in the color blocking unit of same color; Described color blocking bar comprises green color blocking bar, and described color blocking insulation course also comprises a plurality of via holes; Be formed at the articulamentum on described color blocking insulation course, described articulamentum links together the multistage of described second direction electrode by described via hole; Wherein, all described via holes are not positioned at described green color blocking bar.
The touch-control display panel of said structure, via hole on its color blocking insulation course is not arranged on the green color blocking bar that penetrance is high, make the via hole of articulamentum avoid the high green color blocking bar of penetrance, thereby avoided the reflection ray in via hole to cause that the pixel of articulamentum (bridge) neighboring area shows the problem brighter than other regions, the bright problem secretly differing of display frame that has solved touch-control display panel, has improved display frame quality.
Be more than core concept of the present invention, for above-mentioned purpose of the present invention, feature and advantage can be become apparent more, below in conjunction with accompanying drawing, the specific embodiment of the present invention be described in detail.
A lot of details have been set forth in the following description so that fully understand the present invention, but the present invention can also adopt other to be different from alternate manner described here and implement, those skilled in the art can do similar popularization without prejudice to intension of the present invention in the situation that, so the present invention is not subject to the restriction of following public specific embodiment.
Secondly, the present invention is described in detail in conjunction with schematic diagram, when the embodiment of the present invention is described in detail in detail; for ease of explanation; the sectional view that represents device architecture can be disobeyed general ratio and be done local amplification, and described schematic diagram is example, and it should not limit the scope of protection of the invention at this.The three-dimensional space that should comprise in addition, length, width and the degree of depth in actual fabrication.
Embodiment mono-
The present embodiment provides a kind of touch-control display panel, in conjunction with as shown in Figures 2 and 3, wherein, the conductive layer of touch-control display panel and the vertical view of articulamentum that Fig. 3 provides for the present embodiment, Fig. 2 is the sectional view of the conductive layer shown in Fig. 3 and articulamentum AA ' face, and this touch-control display panel comprises: transparency carrier 210 and be formed at successively black-matrix layer 211, conductive layer 212, color blocking insulation course 213, the articulamentum 214 of these transparency carrier 210 1 sides.
The physical relationship of conductive layer 212 and articulamentum 214 can be: conductive layer 212 comprises many first direction electrodes 301 and many second direction electrodes 302 that intersect with 301 insulation of many first direction electrodes, each second direction electrode 302 is divided into multistage 3021 by many first direction electrodes 301, articulamentum 214 comprises a plurality of bridges 303, each bridge 303 is joined together to form second direction electrode 302 by the multistage of second direction electrode 302 3021, to realize the conducting of every second direction electrode 302.
Between conductive layer 212 and articulamentum 214, there is color blocking insulation course 213, so that first direction electrode 301 and second direction electrode 302 are electrically insulated.As shown in Figure 2, Figure 3 and Figure 4, color blocking insulation course 213 comprises a plurality of blue color blockings unit (not shown), red color resistance unit (not shown) and green color blocking unit (not shown), a color blocking bar (not shown) is lined up in the color blocking unit of same color, and color blocking bar comprises the green color blocking bar 403 that the blue color blocking bar 401 lined up blue color blocking unit, red color resistance bar 402 that red color resistance unit is lined up and green color blocking unit are lined up.Color blocking insulation course 213 is manufactured with a plurality of via holes 404, bridge 303 two ends of articulamentum 214 are electrically connected to the multistage of the second direction electrode 302 of conductive layer 212 3021 by different via hole 404 respectively, thereby realized every second direction electrode 302 conductings, between first direction electrode 301 and second direction electrode 302, by the color blocking insulation course 213 of filling, be electrically insulated mutually.
It should be noted that in the present embodiment, making via hole 404 on color blocking insulation course 213, when forming articulamentum 214, via hole 404 is not formed on green color blocking bar 403, and via hole 404 preferably can be formed on red color resistance bar 402 as shown in Figure 4; Also can be as shown in Figure 5, via hole 404 is preferably positioned on blue color blocking bar 401.
Different via holes 404 need be passed through respectively in bridge 303 two ends of articulamentum, the via hole 404 at same bridge 303 two ends can all be positioned on red color resistance bar 402, or be all positioned on blue color blocking bar 401, or the via hole 404 of one end is positioned on red color resistance bar 402, the via hole of the other end is positioned on blue color blocking bar 401.
In the present embodiment, first direction electrode 301 can be drive electrode, and second direction electrode 302 can be induction electrode, or first direction electrode 301 is induction electrode, and second direction electrode 302 is drive electrode.
Conductive layer 212 and articulamentum 214 form the touch controllable function layer of touch-control display panels, when first direction electrode and second direction electrode can comprise a plurality of rhombus electrodes or a plurality of strip electrode, the magnitude of the size of first direction electrode and second direction electrode can be grade; The repetitive that cancellated each grid that first direction electrode and second direction electrode form is this touch controllable function layer, the magnitude of the size of this repetitive can be grade; The magnitude of the size of each color color blocking unit of color blocking insulation course 213 is micron order.
In the present embodiment, conductive layer 212 can comprise grid-shaped metal layer, this grid-shaped metal layer can be blocked by black-matrix layer 211 (when human eye dorsad during this touch-control display panel of unilateral observation of conductive layer 212, be can't see the shape of conductive layer 212 from transparency carrier 210).What this grid-shaped metal layer was concrete can be intersected to form by first direction electrode 301 and second direction electrode 302; Conductive layer 212 also can comprise and grid-shaped metal folded transparency conducting layer (not shown) layer by layer, and conductive layer 212 can be the rhythmo structure that grid-shaped metal layer and transparency conducting layer form.Transparency conducting layer preferably can be tin indium oxide, indium zinc oxide or indium gallium zinc paste.
It should be noted that, above-mentioned black-matrix layer 211 is formed between transparency carrier 210 and conductive layer 212, comprises a plurality of openings (not shown) that expose red color resistance unit, green color blocking unit and blue color blocking unit.
Further, via hole 404 on color blocking insulation course 213 is blocked by black-matrix layer 211 (when human eye is from transparency carrier 210 dorsad during this touch-control display panel of unilateral observation of color blocking insulation course 213, can't see the shape of via hole 404), the width of via hole 404 preferably can be less than or equal to the width of the color blocking bar at its place.
The touch-control display panel that the present embodiment provides can also comprise: be formed at the planarization layer 215 on articulamentum 214, planarization layer 215 adopts transparent material conventionally.
It should be noted that, the present embodiment only be take the touch-control display panel of said structure and is described as example, but this can not form and limit the scope of application of technical scheme provided by the present invention.Based on core concept of the present invention, in other embodiments of the invention, on the color blocking bar of the non-green color blocking bar of color blocking insulation course, make via hole and carry out bridge joint, utilize color blocking insulation course as the conductive layer of touch controllable function layer and the insulating medium of bridge, the touch-control display panel that is integrated with touch controllable function layer of said structure, is equally applicable to other type and causes to obtain the bright touch-control display panel secretly differing of display frame by there is via hole on green color blocking bar.
The touch-control display panel that the embodiment of the present invention provides, utilize color blocking insulation course to keep first direction electrode and second direction electrode to be electrically insulated, articulamentum links together the multistage of described second direction electrode by the via hole on described color blocking insulation course, and all described via holes are not positioned at described green color blocking bar, so, make the via hole of articulamentum avoid the high green color blocking bar of penetrance, thereby avoided the reflection ray in via hole to cause that the pixel of articulamentum (bridge) neighboring area shows the problem brighter than other regions, that is the unnecessary light path that forms of the via hole reflection ray of having avoided green color blocking bar place, thereby solved by the via hole reflection ray on green color blocking bar and caused the discernible problem of articulamentum bridge human eye, make the bright dark homogeneous of display frame, improved display frame quality.
Embodiment bis-
Based on above-described embodiment one, as shown in Figure 6, the present embodiment provides a kind of touch control display apparatus 4, comprise touch-control display panel 5, and the tft array substrate 6 being oppositely arranged with this touch-control display panel, wherein, touch-control display panel 6 adopts the touch-control display panel described in embodiment mono-.
Concrete, light in touch control display apparatus 4 under normal circumstances, can penetrate gradually tft array substrate 6, space between tft array substrate 6 and touch-control display panel 5 and color blocking insulation course 213, as shown in Figure 6, existence due to via hole 404 on color blocking insulation course 213, the sidewall of the inclination of via hole 404 can reflect the light in the gap 604 respectively and between source electrode 602 and drain electrode 603 through the grid 601 of tft array substrate, this reflection ray is reflected by tft array substrate 6 again, final through color blocking insulation course 213, and pass and be incident to human eye from the touch-control display panel 5 of touch control display apparatus 4, form unnecessary light path together.
As shown in Figure 7, the penetrance T of light in color blocking insulation course (red color resistance, blue color blocking and green color blocking)
1directly affect the brightness amplitude A of unnecessary light path, the brightness amplitude function of unnecessary light path can be: A=T
1* T
2.Wherein, T
2represent the penetrance in the space of unnecessary light path between tft array substrate and touch-control display panel, this penetrance is subject to the impact of the light path that transmits in the space of unnecessary light path between tft array substrate and touch-control display panel, and light path depends primarily on the distance d between refractive index n and tft array substrate and touch-control display panel.Under the condition of the distance d between same refractive index n and tft array substrate and touch-control display panel, the brightness amplitude of the unnecessary light path that the via hole place of different colours color blocking bar produces depends on the penetrance T of light in this color color blocking bar
1.
As shown in Fig. 4 and Fig. 7, in figure, transverse axis represents the wavelength X of light, and the longitudinal axis represents the penetrance T of light in color blocking insulation course
1, curve 1,2 and 3 represents that respectively the penetrance of light in blue color blocking bar, green color blocking bar and red color resistance bar is with the change curve of wavelength.By curve, can be obtained the brightness L=1.0000L of light
r+ 4.5907L
g+ 0.0601L
b, wherein, L
r, L
gand L
bbe respectively the brightness of ruddiness, green glow and blue light, visible, for a branch of light that enters human eye, through the contribution of the light of green color blocking bar, much larger than red color resistance bar and blue color blocking bar, the penetrance of green color blocking bar is the highest.
If via hole 404 is positioned on green color blocking bar 403, because the penetrance of green color blocking bar 403 is high compared with the penetrance of red color resistance bar 402 and blue color blocking bar 401, during identical light path (being identical Δ n * d), the brightness amplitude A far away of the unnecessary light path that green color blocking bar 403 via hole places produce
gbe greater than the brightness amplitude A of the unnecessary light path of red color resistance bar 402 via hole places generation
rthe brightness amplitude A of the unnecessary light path producing with blue color blocking bar 401 via hole places
b, cause human eye can identify the bridge at green color blocking bar 403 via hole places.
Based on above-mentioned derivation, in the present embodiment, when making the via hole of articulamentum, avoid green color blocking bar 403, be about to via hole 404 and be formed on other color color blocking bars of non-green color blocking bar 403, the unnecessary light path that this has just been avoided the via hole reflection ray at green color blocking bar 403 places to form, causes the discernible problem of articulamentum bridge human eye thereby solved by the via hole reflection ray on green color blocking bar 403, the bright dark homogeneous that makes display frame, has improved display frame quality.
Further, penetrance in the space of light between tft array substrate and touch-control display panel and the two distance between relation as shown in Figure 8, in figure, transverse axis represents the distance d between tft array substrate and touch-control display panel, and the longitudinal axis represents the penetrance T in the space of light between tft array substrate and touch-control display panel
2, curve aa ' represents to penetrate along normal light path the penetrance T of the light in the space between tft array substrate and touch-control display panel
2with the change curve of the distance d between tft array substrate and touch-control display panel, curve bb ' represents to penetrate along unnecessary light path the penetrance T of the light in the space between tft array substrate and touch-control display panel
2change curve with the distance d between tft array substrate and touch-control display panel.By two curve comparisons, can be obtained, when the distance between tft array substrate and touch-control display panel increases to 3.5 μ m from 3.0 μ m, the penetrance of unnecessary light path declines, be that its brightness declines, distance d between this and experimental result tft array substrate and touch-control display panel increases, and bridge micro-conclusion that lightens is as seen consistent.Therefore, the touch control display apparatus that the present embodiment provides, the distance between its touch-control display panel and tft array substrate preferably can be 2.8-3.7 μ m, comprises endpoint value.
It should be noted that, the touch control display apparatus that the present embodiment provides is not limited to liquid crystal indicator, OLED(Organic Light-Emitting Diode, Organic Light Emitting Diode) display device or Electronic Paper etc.
To sum up, the touch-control display panel that the embodiment of the present invention provides and touch control display apparatus, utilize color blocking insulation course to keep first direction electrode and second direction electrode to be electrically insulated, articulamentum links together the multistage of described second direction electrode by the via hole on described color blocking insulation course, and all described via holes are not positioned at described green color blocking bar, so, make the via hole of articulamentum avoid the high green color blocking bar of penetrance, thereby avoided the reflection ray in via hole to cause that the pixel of articulamentum (bridge) neighboring area shows the problem brighter than other regions, that is the unnecessary light path that forms of the via hole reflection ray of having avoided green color blocking bar place, thereby solved by the via hole reflection ray on green color blocking bar and caused the discernible problem of articulamentum bridge human eye, make the bright dark homogeneous of display frame, improved display frame quality.
Although the present invention discloses as above with preferred embodiment, yet not in order to limit the present invention.Any those of ordinary skill in the art, do not departing from technical solution of the present invention scope situation, all can utilize method and the technology contents of above-mentioned announcement to make many possible changes and modification to technical solution of the present invention, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not depart from technical solution of the present invention,, all still belongs in the scope of technical solution of the present invention protection any simple modification made for any of the above embodiments, equivalent variations and modification according to technical spirit of the present invention.
Claims (10)
1. a touch-control display panel, comprising:
One transparency carrier;
Be formed at the conductive layer on described transparency carrier, described conductive layer comprises many first direction electrodes and many second direction electrodes that intersect with described many first direction electrode insulations, and described in each, second direction electrode is divided into multistage by described many first direction electrodes;
Be laid in the color blocking insulation course on described conductive layer, described color blocking insulation course comprises a plurality of red color resistance unit, green color blocking unit and blue color blocking unit, and a color blocking bar is lined up in the color blocking unit of same color; Described color blocking bar comprises green color blocking bar, and described color blocking insulation course also comprises a plurality of via holes;
Be formed at the articulamentum on described color blocking insulation course, described articulamentum links together the multistage of described second direction electrode by described via hole;
Wherein, all described via holes are not positioned at described green color blocking bar.
2. touch-control display panel as claimed in claim 1, it is characterized in that, described touch-control display panel also comprises the black-matrix layer being formed between described transparency carrier and described conductive layer, and described black-matrix layer comprises a plurality of openings that expose described red color resistance unit, green color blocking unit and blue color blocking unit.
3. touch-control display panel as claimed in claim 2, is characterized in that, described conductive layer comprises grid-shaped metal layer, and described grid-shaped metal layer is blocked by described black-matrix layer.
4. touch-control display panel as claimed in claim 3, is characterized in that, described conductive layer also comprises and described grid-shaped metal folded transparency conducting layer layer by layer.
5. touch-control display panel as claimed in claim 4, is characterized in that, described transparency conducting layer is tin indium oxide, indium zinc oxide or indium gallium zinc paste.
6. touch-control display panel as claimed in claim 2, is characterized in that, described via hole is blocked by described black-matrix layer.
7. the touch-control display panel as described in any one in claim 1-6, is characterized in that, described touch-control display panel also comprises the planarization layer being formed on described articulamentum.
8. the touch-control display panel as described in any one in claim 1-6, is characterized in that, described first direction electrode is drive electrode, and described second direction electrode is induction electrode, or,
Described first direction electrode is induction electrode, and described second direction electrode is drive electrode.
9. a touch control display apparatus, comprising:
Touch-control display panel as described in any one in claim 1-8; And
The tft array substrate being oppositely arranged with described touch-control display panel.
10. touch control display apparatus as claimed in claim 9, is characterized in that, the distance between described touch-control display panel and described tft array substrate is 2.8-3.7 μ m.
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| CN201310749651.6A CN103927046B (en) | 2013-12-30 | 2013-12-30 | Touch-control display panel and touch control display apparatus |
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| CN201310749651.6A CN103927046B (en) | 2013-12-30 | 2013-12-30 | Touch-control display panel and touch control display apparatus |
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| CN103927046B CN103927046B (en) | 2017-01-04 |
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| CN107066157A (en) * | 2017-03-10 | 2017-08-18 | 深圳唯科技股份有限公司 | Large size capacitive touch screen and its process of flexible production |
| WO2021227739A1 (en) * | 2020-05-11 | 2021-11-18 | 京东方科技集团股份有限公司 | Touch panel and manufacturing method therefore, and display panel |
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| Publication number | Publication date |
|---|---|
| CN103927046B (en) | 2017-01-04 |
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