CN106959783B - Array substrate, touch panel and touch device - Google Patents
Array substrate, touch panel and touch device Download PDFInfo
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- CN106959783B CN106959783B CN201710217494.2A CN201710217494A CN106959783B CN 106959783 B CN106959783 B CN 106959783B CN 201710217494 A CN201710217494 A CN 201710217494A CN 106959783 B CN106959783 B CN 106959783B
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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Abstract
The embodiment of the invention provides an array substrate, a touch panel and a touch device. In one aspect, in an embodiment of the present invention, an array substrate includes: the touch control electrode layer comprises a plurality of touch control electrode units, and each touch control electrode unit is electrically connected with at least one first touch control signal line in the display area; at least part of the first touch signal lines are electrically connected with a plurality of second touch signal lines positioned in the sector area; the second touch signal lines are distributed in the at least two metal layers. Therefore, the technical scheme provided by the embodiment of the invention can solve the problem that the display effect and the touch sensitivity are influenced due to the large resistance of the touch signal line in the prior art to a certain extent.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of touch display, in particular to an array substrate, a touch panel and a touch device.
[ background of the invention ]
In a display area of a touch panel, there are generally many signal lines, such as: data lines, touch signal lines, gate lines, and the like. These signal lines are typically required to be connected to an Integrated Circuit (IC) through a fan-out (fan-out) region. Specifically, please refer to fig. 1, which is a schematic structural diagram of a touch panel in the prior art, as shown in fig. 1, the touch panel includes: a display area 10, an IC and a sector 20 located between the display area 10 and the IC, the area within the dashed box in fig. 1 representing the sector. As shown in fig. 1, the signal lines in the display area 20 are electrically connected to the IC through the connection lines in the sector 10, and the connection lines in the sector 10 are distributed in a sector shape.
In the touch panel of the prior art, particularly when the touch signal lines are located in the display area, the touch signal lines are as narrow as possible in order to not reduce the aperture ratio of the touch panel as much as possible. However, the touch signal line is far from the touch electrode to the IC, and the touch signal line has a large resistance, and thus a signal delay may occur in the process of transmitting a signal. Particularly, when the display screen is large, the touch signal line corresponding to the touch electrode located on the side of the display area far from the IC is long, the delay is severe, and the touch sensitivity is low.
Therefore, in the prior art, the resistance of the touch signal line is large, so that the touch signal is delayed greatly in the transmission process, and further, the display effect and the touch sensitivity of the touch panel are greatly influenced.
[ summary of the invention ]
In view of this, embodiments of the present invention provide an array substrate, a touch panel and a touch device, which can solve the problem that the display effect and the touch sensitivity are affected due to the large resistance of the touch signal line in the prior art to a certain extent.
In a first aspect, an embodiment of the present invention provides an array substrate, including:
the touch control electrode layer comprises a plurality of touch control electrode units, and each touch control electrode unit is electrically connected with at least one first touch control signal line in a display area;
at least part of the first touch signal lines are electrically connected with a plurality of second touch signal lines positioned in the sector area;
the second touch signal lines are distributed in at least two metal layers.
The above-described aspects and any possible implementation further provide an implementation, further including:
in a direction perpendicular to the plane of the array substrate, projections of any two second touch signal lines in the plurality of second touch signal lines are overlapped.
The above-described aspect and any possible implementation manner further provide an implementation manner, when the number of the plurality of second touch lines is at least three,
in a direction perpendicular to the plane of the array substrate, projections of at least two of the at least three second touch signal lines are not overlapped, and projections of at least two of the at least three second touch signal lines are overlapped.
The above aspects, and any possible implementations, further provide an implementation,
in a direction perpendicular to the plane of the array substrate, projections of any two second touch signal lines in the plurality of second touch signal lines are not overlapped.
The above aspects, and any possible implementations, further provide an implementation,
the array substrate comprises a first metal layer and a second metal layer, and an insulating layer is arranged between the first metal layer and the second metal layer;
in the display area, the first metal layer comprises scanning lines, and the second metal layer comprises data lines and a plurality of first touch signal lines;
in the sector area, the plurality of second touch signal lines are distributed in the first metal layer and the second metal layer.
The above aspects, and any possible implementations, further provide an implementation,
the array substrate comprises a first metal layer, a second metal layer and a third metal layer, and an insulating layer is arranged between every two adjacent metal layers;
in the display area, the first metal layer comprises scanning lines, the second metal layer comprises data lines, and the third metal layer comprises the plurality of first touch signal lines;
in the sector area, the plurality of second touch signal lines are distributed in the first metal layer and the third metal layer.
The above aspects, and any possible implementations, further provide an implementation,
the array substrate comprises a first metal layer, a second metal layer and a third metal layer, and an insulating layer is arranged between every two adjacent metal layers;
in the display area, the first metal layer comprises scanning lines, the second metal layer comprises data lines, and the third metal layer comprises the plurality of first touch signal lines;
in the sector area, the plurality of second touch signal lines are distributed in the second metal layer and the third metal layer.
The above aspects, and any possible implementations, further provide an implementation,
the array substrate comprises a first metal layer, a second metal layer and a third metal layer, and an insulating layer is arranged between every two adjacent metal layers;
in the display area, the first metal layer comprises scanning lines, the second metal layer comprises data lines, and the third metal layer comprises the plurality of first touch signal lines;
in the sector area, the plurality of second touch signal lines are distributed in the first metal layer, the second metal layer and the third metal layer.
The above aspects, and any possible implementations, further provide an implementation,
each first touch signal line is electrically connected with a plurality of second touch signal lines positioned in the sector.
In accordance with the foregoing aspect and any one of the possible implementations, there is further provided an implementation in which the touch electrode layer is electrically connected to the first touch signal lines in the display area through via holes;
and part of the first touch signal lines are electrically connected with the second touch signal lines in the sector area through line changing holes.
In a second aspect, an embodiment of the present invention provides a touch panel, including: the array substrate is provided.
In a third aspect, an embodiment of the present invention provides a touch device, including: the touch panel is provided.
One of the above technical solutions has the following beneficial effects:
in the embodiment of the invention, one first touch signal line positioned in the display area is correspondingly and electrically connected with a plurality of second touch signal lines positioned in the sector area, the plurality of touch signal lines in the sector area are positioned in different layers, the safe distance between two adjacent second touch signal lines is not required to be reserved, and the width of the sector area is not increased; in addition, because the plurality of second touch control lines connected in parallel are positioned in the sector area, the aperture opening ratio of the touch control panel is not adversely affected; in the embodiment of the present invention, the touch signal transmitted by one first touch signal line may be transmitted through a plurality of second touch signal lines, and thus, the plurality of second touch signal lines connected to the same first touch signal line are equivalent to a parallel connection relationship, so that, compared with a scheme of transmitting the touch signal by one second touch signal line, the total resistance of the touch signal lines may be significantly reduced, and further, signal delay may be effectively reduced in the process of transmitting the touch signal, thereby avoiding a situation of adversely affecting the display effect and the touch sensitivity of the touch panel, and the aperture ratio of the touch panel may not be reduced by connecting a plurality of second touch signal lines in parallel in the sector area. Therefore, the technical scheme provided by the embodiment of the invention can solve the problems of poor display effect and low touch sensitivity caused by large resistance of the touch signal line in the prior art to a certain extent.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
FIG. 1 is a schematic diagram of a touch panel in the prior art;
fig. 2 is a schematic structural diagram of an array substrate according to an embodiment of the present invention;
FIG. 3 is a first schematic top view of a sector;
FIG. 4 is a first schematic cross-sectional view at AA' of FIG. 3;
FIG. 5 is a second schematic cross-sectional view at AA' of FIG. 3;
FIG. 6 is a third schematic cross-sectional view at AA' of FIG. 3;
FIG. 7 is a fourth schematic cross-sectional view at AA' of FIG. 3;
figure 8 is a second top view schematic of a sector;
FIG. 9 is a schematic cross-sectional view at BB' of FIG. 8;
figure 10 is a second top schematic view of a sector;
FIG. 11 is a schematic cross-sectional view taken at CC' of FIG. 10;
fig. 12 is a schematic structural diagram of a touch panel according to an embodiment of the invention.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It should be understood that although the terms first, second, third, etc. may be used to describe the touch signal lines in the embodiments of the present invention, the touch signal lines should not be limited by these terms. These terms are only used to distinguish the touch signal lines from each other. For example, the first touch signal line may also be referred to as a second touch signal line, and similarly, the second touch signal line may also be referred to as a first touch signal line without departing from the scope of the embodiments of the present invention.
The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.
Aiming at the problems of poor display effect and low touch sensitivity caused by large resistance of a touch signal line in the prior art, the embodiment of the invention provides the following solution ideas: the first touch signal line located in the display area is correspondingly and electrically connected with the second touch signal lines located in the sector area, and the second touch signal lines generate a parallel connection effect, so that the effect of reducing the total resistance of the touch signal lines can be achieved on the premise of not adversely affecting the aperture opening ratio of the touch panel.
Under the guidance of this idea, the present embodiment provides the following feasible embodiments.
The embodiment of the invention provides an array substrate. Specifically, please refer to fig. 2, which is a schematic structural diagram of an array substrate according to an embodiment of the present invention. As shown in fig. 2, the array substrate includes: a touch electrode layer including a plurality of touch electrode units 70, each touch electrode unit 70 being electrically connected to at least one first touch signal line 4 in the display area 20; at least part of the first touch signal lines 4 are electrically connected with a plurality of second touch signal lines 1 positioned in the sector area 10; the second touch signal lines 1 are distributed in at least two metal layers.
It should be noted that, as shown in fig. 2, the first touch signal line 4 is located in the display area 20, and the first touch signal line 4 is electrically connected to the touch electrode unit 70. The second touch signal line 1 is located in the sector 10, the second touch signal line 1 is used as a connection line between the first touch signal line 4 and the IC, one end of the second touch signal line is electrically connected to the first touch signal line 4, and the other end of the second touch signal line is electrically connected to the IC.
It should be noted that the array substrate shown in fig. 2 is only an example, and the arrangement of the touch electrodes in the touch electrode layer is not particularly limited in the embodiments of the present invention. For example, the touch electrode units may be arranged in an array manner in the touch electrode layer as shown in fig. 2; alternatively, for example, the touch electrode units may also be arranged in parallel in a long strip shape, and the extending direction of the touch electrode units is perpendicular to the extending direction of the data lines.
It should be noted that, in the embodiment of the present invention, each touch electrode unit is electrically connected to at least one first touch signal line in the display area. In a specific implementation process, as shown in fig. 2, on the array substrate, the touch electrode unit 70 located on the touch electrode layer is electrically connected to the first touch signal lines 4 through via holes. In a process of actually implementing the present disclosure, one touch electrode unit may be electrically connected to at least two first touch signal lines through via holes, which is not particularly limited in the embodiment of the present disclosure.
In the embodiment of the present invention, a part of all the first touch signal lines is electrically connected to the plurality of second touch signal lines, and the plurality of second touch signal lines connected to one first touch signal line are distributed in at least two metal layers. In a specific implementation process, part of the first touch signal lines are electrically connected with the plurality of second touch signal lines in the sector area through the line changing holes.
It should be noted that, in the embodiment of the present invention, the number of the first touch signal lines electrically connected to the plurality of second touch signal lines is not particularly limited, and only at least a portion of the first touch signal lines are electrically connected to the plurality of second touch signal lines, so as to achieve the effect of reducing the resistance in parallel.
In a process of actually implementing the present disclosure, each first touch signal line may be electrically connected to a plurality of second touch signal lines located in the sector, which is not particularly limited in the embodiment of the present disclosure.
Based on this, according to the technical solution provided by the embodiment of the present invention, one first touch signal line is electrically connected to a plurality of second touch signal lines, and the plurality of second touch signal lines connected to the same first touch signal line are equivalent to a parallel connection relationship, so that compared with a scheme in which one second touch signal line is used to transmit a touch signal, the total resistance of the touch signal lines can be significantly reduced, and further, the signal delay can be effectively reduced in the process of transmitting the touch signal, thereby avoiding a situation in which an adverse effect is generated on the display effect and the touch sensitivity of the touch panel; on the other hand, in the embodiment of the invention, the plurality of second touch signal lines are connected in parallel in the sector area, so that the opening ratio of the touch panel is not adversely affected.
It should be noted that, according to the difference of the structure of the display area, the first touch signal line located in the display area is also located in different metal layers. The position of one first touch signal line electrically connected to a plurality of second touch signal lines is not particularly limited in the embodiments of the present invention.
For example, in the display area of the array substrate, at least: a first metal layer M1 and a second metal layer M2. The first metal layer M1 is a gate metal layer, and a gate and a scan line are usually disposed in the first metal layer M1; the second metal layer M2 is a source-drain metal layer, and a data line is generally disposed in the second metal layer M2. At this time, the touch signal lines may be disposed in the second metal layer M2, and located at the same layer as the data lines.
In addition, in the display area of the array substrate, there may be a third metal layer M3, the third metal layer M3 is a touch metal layer, and touch signal lines are usually disposed in the third metal layer M3. At this time, the touch signal line and the data line are located at different layers.
In the display region of the array substrate, an insulating layer is provided between adjacent metal layers.
In an actual implementation process, a gate insulating layer and an active layer are arranged between the first metal layer M1 and the second metal layer M2; in a direction in which the second metal layer M2 is distant from the first metal layer M1, a pixel electrode layer, a common electrode layer, and a third metal layer M3, and an interlayer insulating layer between the metal layers and the electrode layers, between the electrode layers, and between the metal layers and the metal layers may also be provided.
For convenience of description, in the array substrate provided in the embodiments of the present invention, a first insulating layer is disposed between the first metal layer M1 and the second metal layer M2, and a second insulating layer is disposed between the second metal layer M2 and the third insulating layer M3. The specific structure included in the first insulating layer and the second insulating layer is not particularly limited.
In the embodiment of the present invention, according to the projection of the second touch signal line in the direction perpendicular to the plane of the array substrate, the specific structure of the connection relationship between the display area and the sector area on the array substrate includes, but is not limited to, the following three cases:
first, in a direction perpendicular to a plane where the array substrate is located, projections of any two second touch signal lines in the plurality of second touch signal lines are overlapped.
Specifically, please refer to fig. 3, which is a first top view of the sector. As shown in fig. 3, in a direction perpendicular to the plane of the array substrate, a projection of one first touch signal line 4 in the display area 20 is a signal line, and a projection of a plurality of second touch signal lines 1 in the sector area 10 is a signal line, and at this time, the projections of the plurality of second touch signal lines 1 are completely overlapped.
As shown in fig. 3, one first touch signal line 4 and a plurality of second touch signal lines 1 are electrically connected through a wire changing hole 3.
As shown in fig. 3, the array substrate is further provided with data lines 2 in the sector area 20, at this time, 3 data lines 2 are generally arranged between two second touch signal lines 1, and each data line 2 is electrically connected to a column of pixel electrodes through a data line of the display area.
It should be noted that the array substrate shown in fig. 3 is only exemplary, for example, the arrangement pitch between the data lines 2 in the sector 20 and the arrangement pitch between the data lines 2 and the second touch signal lines 1 are exemplary, and the arrangement pitch is not particularly limited in the present invention.
In a specific implementation process, when the plurality of second touch signal lines are arranged in the overlooking structure shown in fig. 3, the space of the sector area can be effectively saved, and at the moment, the width of the sector area is not required to be specially required, and the scheme can be implemented without widening the width of the sector area; in addition, the arrangement structure shown in fig. 3 allows the signal lines between the sectors to have a certain arrangement distance, which is simple and convenient to implement.
It should be noted that, when the dual-layer wiring or the multi-layer wiring is performed in the arrangement manner shown in fig. 3, the number of the second touch signal lines 1 connected to the same first touch signal line 4 does not exceed the number of the wiring layers.
At this time, according to the metal layer structure of the array substrate, the following four implementation manners may be included, but not limited to:
first, as shown in fig. 3 and 4, fig. 4 is a first schematic cross-sectional view at AA' in fig. 3, when the display region 20 of the array substrate includes two metal layers: the first metal layer M1 and the second metal layer M2, and the first insulating layer 40 is disposed between the first metal layer M1 and the second metal layer M2. At this time, a plurality of scan lines are disposed on the first metal layer M1, a data line 2 and a plurality of first touch signal lines 4 are disposed on the second metal layer M2, and the first insulating layer 40 may be a gate insulating layer or a stacked gate insulating layer and an interlayer insulating layer.
Specifically, as shown in fig. 4, the array substrate 30 in the sector 10 also includes two metal layers: the first insulating layer 40 is disposed between the first metal layer M1 and the second metal layer M2 when the first metal layer M1 and the second metal layer M2 are formed. As shown in fig. 4, the array substrate 30 may further include: a base substrate 60.
Based on this, as shown in fig. 4, in the array substrate 30 at AA' in fig. 3, the number of the second touch signal lines 1 connected to one first touch signal line 4 is 2, one of the two second touch signal lines 1 is located in the first metal layer M1, and the other is located in the second metal layer M2. As shown in fig. 4, the cross-sections of the two second touch signal lines 1 connected to one first touch signal line 4 are located on the same vertical line, that is, in the direction perpendicular to the plane of the array substrate 30, the projections of the two second touch signal lines 1 connected to one first touch signal line 4 are completely overlapped.
As shown in fig. 4, on the array substrate 30, the data lines 2 in the sector 10 are still located in the second metal layer M2.
In the first implementation manner, one second touch signal line and the data line are located on the same metal layer, which can be implemented by using the same mask as the data line, and the other second touch signal line and the gate line are located on the same metal layer, which can be implemented by using the same mask as the gate line.
In a second implementation manner, as shown in fig. 3 and fig. 5, fig. 5 is a second schematic cross-sectional view at AA' of fig. 3, when the display area 20 of the array substrate includes three metal layers: the first metal layer M1, the second metal layer M2, and the third metal layer M3, and the first insulating layer 40 is disposed between the first metal layer M1 and the second metal layer M2, and the second insulating layer 50 is disposed between the second metal layer M2 and the third metal layer M3. At this time, a plurality of scan lines are disposed on the first metal layer M1, a plurality of data lines 2 are disposed on the second metal layer M2, a plurality of first touch signal lines 4 are disposed on the third metal layer M3, and the first insulating layer 40 may be a gate insulating layer or a stacked gate insulating layer and an interlayer insulating layer.
Specifically, as shown in fig. 5, the array substrate 30 in the sector 10 also includes: a first metal layer M1, a second metal layer M2 and a third metal layer M3, wherein a first insulating layer 40 is disposed between the first metal layer M1 and the second metal layer M2, and a second insulating layer 50 is disposed between the second metal layer M2 and the third metal layer M3. As shown in fig. 5, the array substrate 30 may further include: a base substrate 60.
As shown in fig. 5, in the array substrate 30 at AA' in fig. 3, the number of the second touch signal lines 1 connected to one first touch signal line 4 is 2, one of the two second touch signal lines 1 is located in the first metal layer M1, and the other is located in the third metal layer M3. As shown in fig. 5, the cross-sections of the two second touch signal lines 1 connected to one first touch signal line 4 are located on the same vertical line, that is, in the direction perpendicular to the plane of the array substrate 30, the projections of the two second touch signal lines 1 connected to one first touch signal line 4 are completely overlapped.
As shown in fig. 5, on the array substrate 30, the data lines 2 located in the sector 10 are located in the second metal layer M2.
In the array substrate shown in the second implementation manner, a second touch signal line is added in the first metal layer M1 of the sector area, the gate line is located in the first metal layer M1, and in general, the metal layer where the gate line is located is generally made of a metal layer material with a small sheet resistance, so that the second touch signal line is arranged in the first metal layer M1 and is connected in parallel with a second touch signal line in the third metal layer M3, which is more favorable for reducing the total resistance of the touch signal line; on the other hand, the second touch signal line in the first metal layer M1 may be implemented by using the same mask as the gate line.
Third, as shown in fig. 3 and fig. 6, fig. 6 is a third schematic cross-sectional view at AA' in fig. 3, when the display area 20 of the array substrate includes three metal layers: the first metal layer M1, the second metal layer M2, and the third metal layer M3, and the first insulating layer 40 is disposed between the first metal layer M1 and the second metal layer M2, and the second insulating layer 50 is disposed between the second metal layer M2 and the third metal layer M3. At this time, a plurality of scan lines are disposed on the first metal layer M1, a plurality of data lines 2 are disposed on the second metal layer M2, a plurality of first touch signal lines 4 are disposed on the third metal layer M3, and the first insulating layer 40 may be a gate insulating layer or a stacked gate insulating layer and an interlayer insulating layer.
It should be noted that a plurality of scan lines are disposed on the first metal layer M1, and the first metal layer M1 is not disposed at AA' in fig. 3, but in order to save process steps, the first insulating layer 40 for insulating the first metal layer M1 from the second metal layer M2 is still disposed, i.e., the first insulating layer 40 in the sector 10 is etched away without adding a mask. Therefore, on the array substrate as shown in fig. 6, the first insulating layer 40 is disposed between the substrate 60 and the second metal layer M2.
Based on this, as shown in fig. 6, the array substrate 30 in the sector 10 includes: the second metal layer M2 and the third metal layer M3, the first insulating layer 40 is disposed between the substrate base plate 60 and the second metal layer M2, and the second insulating layer 50 is disposed between the second metal layer M2 and the third metal layer M3.
As shown in fig. 6, in the array substrate 30 at AA' in fig. 3, the number of the second touch signal lines 1 connected to one first touch signal line 4 is 2, one of the two second touch signal lines 1 is located in the second metal layer M2, and the other is located in the third metal layer M3. As shown in fig. 6, the cross-sections of the two second touch signal lines 1 connected to one first touch signal line 4 are located on the same vertical line, that is, in the direction perpendicular to the plane of the array substrate 30, the projections of the two second touch signal lines 1 connected to one first touch signal line 4 are completely overlapped.
As shown in fig. 6, on the array substrate 30, the data lines 2 located in the sector 10 are located in the second metal layer M2.
In a fourth implementation manner, as shown in fig. 3 and fig. 7, fig. 7 is a fourth schematic cross-sectional view at AA' in fig. 3, when the display area 20 of the array substrate includes three metal layers: the first metal layer M1, the second metal layer M2, and the third metal layer M3, and the first insulating layer 40 is disposed between the first metal layer M1 and the second metal layer M2, and the second insulating layer 50 is disposed between the second metal layer M2 and the third metal layer M3. At this time, a plurality of scan lines are disposed on the first metal layer M1, a plurality of data lines 2 are disposed on the second metal layer M2, a plurality of first touch signal lines 4 are disposed on the third metal layer M3, and the first insulating layer 40 may be a gate insulating layer or a stacked gate insulating layer and an interlayer insulating layer.
Specifically, as shown in fig. 7, the array substrate 30 in the sector 10 includes: a first metal layer M1, a second metal layer M2 and a third metal layer M3, wherein a first insulating layer 40 is disposed between the first metal layer M1 and the second metal layer M2, and a second insulating layer 50 is disposed between the second metal layer M2 and the third metal layer M3. As shown in fig. 7, the array substrate 30 may further include: a base substrate 60.
As shown in fig. 7, in the array substrate 30 at AA' in fig. 3, the number of the second touch signal lines 1 connected to one first touch signal line 4 is 3, and one of the three second touch signal lines 1 is located in the first metal layer M1, one is located in the second metal layer M2, and the other is located in the third metal layer M3. As shown in fig. 7, the cross-sections of the three second touch signal lines 1 connected to one first touch signal line 4 are located on the same vertical line, that is, in the direction perpendicular to the plane of the array substrate 30, the projections of the three second touch signal lines 1 connected to one first touch signal line 4 are completely overlapped.
As shown in fig. 7, on the array substrate 30, the data lines 2 located in the sector 10 are still located in the second metal layer M2.
In the array substrate shown in the fourth implementation manner, one first touch signal line is connected in parallel with at least three second touch signal lines, and the increase of the number of the second touch signal lines connected in parallel is more beneficial to reducing the total resistance of the touch signal lines.
Secondly, in the direction perpendicular to the plane of the array substrate, the projections of any two second touch signal lines in the plurality of second touch signal lines are not overlapped.
Hereinafter, a description will be given specifically by taking an example in which one first touch signal line is connected to three second touch signal lines. Specifically, please refer to fig. 8, which is a second top view of the sector. As shown in fig. 8, in a direction perpendicular to the plane of the array substrate, the projection of one first touch signal line 4 in the display area 20 is one signal line, and the projection of three second touch signal lines 1 in the sector area 10 is three signal lines, at this time, the projections of the three second touch signal lines 1 are not overlapped at all.
As shown in fig. 8, one first touch signal line 4 and three second touch signal lines 1 are electrically connected through a wire changing hole 3.
As shown in fig. 8, the array substrate is further provided with data lines 2 in the sector area 20, at this time, 3 data lines 2 are generally arranged between two second touch signal lines 1, and each data line 2 is electrically connected to one pixel electrode through a data line of the display area.
It should be noted that the array substrate shown in fig. 8 is only exemplary, for example, the arrangement pitch between the data lines 2 in the sector 10 and the arrangement pitch between the data lines 2 and the second touch signal lines 1 are exemplary, and the arrangement pitch is not particularly limited in the present invention.
It should be noted that, when the second touch signal lines are wired in a double-layer or multi-layer manner in the arrangement shown in fig. 8, the number of the second touch signal lines 1 connected to the same first touch signal line 4 is not limited by the number of the wiring layers.
In a specific implementation process, when the plurality of second touch signal lines are arranged in the overlooking structure shown in fig. 8, a plurality of arrangement modes can be combined, at this time, the number of the second touch signal lines connected with one first touch signal line is not limited, the second touch signal lines as many as possible can be connected in parallel under an allowable condition, the effect of reducing the total resistance of the touch signal lines can be more effectively achieved, further, the signal delay can be effectively reduced in the process of transmitting the touch signal, and the condition that the display effect and the touch sensitivity of the touch panel are adversely affected is avoided.
In the embodiment of the present invention, when the second touch signal line is wired in a dual-layer manner or in multiple layers in the arrangement manner shown in fig. 8, four implementation manners similar to those shown in fig. 4 to 7 may also be included, but the difference from the structures shown in fig. 4 to 7 is that: the cross sections of the second touch signal lines 1 connected to one first touch signal line 4 are located on different vertical lines, and the cross sections of any two second touch signal lines 1 are not located on the same vertical line.
Hereinafter, the structure shown in fig. 9 will be described as an example. Fig. 9 is a schematic cross-sectional view at BB' in fig. 8. As shown in fig. 9, the array substrate 30 in the sector 10 includes: the first insulating layer 40 is disposed between the first metal layer M1 and the second metal layer M2, and between the first metal layer M1 and the second metal layer M2. As shown in fig. 9, the array substrate 30 may further include: a base substrate 60.
As shown in fig. 8 and 9, the display area 20 of the array substrate may include a first metal layer M1 and a second metal layer M2, and a first insulating layer 40 is disposed between the first metal layer M1 and the second metal layer M2. The first metal layer M1 includes a scan line, the second metal layer M2 includes a data line 2 and a plurality of first touch signal lines 4, and the first insulating layer 40 may be a gate insulating layer or a stacked gate insulating layer and an interlayer insulating layer.
At this time, as shown in fig. 9, in the array substrate 30 at BB' in fig. 8, the number of the second touch signal lines 1 connected to one first touch signal line 4 is 3, among the three second touch signal lines 1, a first second touch signal line is located in the first metal layer M1, a second touch signal line is located in the second metal layer M2, a third second touch signal line is located in the first metal layer M1, and the three second touch signal lines 1 are connected to one first touch signal line 4. Specifically, as shown in fig. 9, the cross sections of three second touch signal lines 1 connected to one first touch signal line 4 are respectively located on three different vertical lines, and the cross sections of any two second touch signal lines 1 are not located on the same vertical line.
As shown in fig. 9, the data lines 2 in the sector 10 of the array substrate 30 are still located in the second metal layer M2.
The arrangement structure shown in fig. 9 is only schematic, and in the actual implementation of the present solution, there may be other various arrangement structures, which are not described in detail herein.
Thirdly, when the number of the plurality of second touch control lines is at least three, in the direction perpendicular to the plane of the array substrate, the projections of at least two of the at least three second touch control signal lines are not overlapped, and the projections of at least two of the at least two second touch control signal lines are overlapped.
In the actual implementation process, when one first touch signal line is electrically connected with N second touch signal lines, N is greater than or equal to 3, and at this time, the number of projections of the second touch signal lines in the direction perpendicular to the plane of the array substrate varies within the range of (1, N).
Hereinafter, a description will be given specifically by taking an example in which one first touch signal line is connected to three second touch signal lines.
Specifically, please refer to fig. 10, which is a third schematic top view of the sector. As shown in fig. 10, in a direction perpendicular to the plane of the array substrate, the projection of one first touch signal line 4 in the display area 20 is one signal line, and the projections of three second touch signal lines 1 in the sector area 10 are two signal lines, at this time, the projections of two second touch signal lines 1 in the three second touch signal lines 1 are completely overlapped, and the projection of one second touch signal line is not overlapped with the projections of the other two second touch signal lines 1.
As shown in fig. 10, one first touch signal line 4 and three second touch signal lines 1 are electrically connected through a wire changing hole 3.
As shown in fig. 10, the array substrate is further provided with data lines 2 in the sector area 20, at this time, 3 data lines 2 are generally arranged between two second touch signal lines 1, and each data line 2 is electrically connected to one pixel electrode through a data line of the display area.
It should be noted that the array substrate shown in fig. 10 is only exemplary, for example, the arrangement pitch between the data lines 2 in the sector 10 and the arrangement pitch between the data lines 2 and the second touch signal lines 1 are exemplary, and the arrangement pitch is not particularly limited in the present invention.
When the second touch signal lines are wired in a double-layer or multi-layer manner in the arrangement shown in fig. 10, the number of the second touch signal lines 1 connected to the same first touch signal line 4 is not limited by the number of the wiring layers.
In a specific implementation process, when a plurality of second touch signal lines are arranged in a top view structure shown in fig. 10, the number of the second touch signal lines connected with one first touch signal line is not limited, and as many second touch signal lines as possible can be connected in parallel under an allowable condition, so that the effect of reducing the total resistance of the touch signal lines can be more effectively achieved, further, signal delay can be effectively reduced in the process of transmitting the touch signal, and the situation that the display effect and the touch sensitivity of the touch panel are adversely affected is avoided; on the other hand, due to the fact that the projections of part of the second touch signal lines are overlapped, the space of the sector area can be saved to a certain extent, at the moment, the influence on the width of the sector area is small, and the implementation mode is simple and convenient.
In the embodiment of the present invention, when the second touch signal line is wired in a dual-layer manner or in multiple layers in the arrangement manner shown in fig. 10, four implementation manners similar to those shown in fig. 4 to 7 may also be included, but the difference from the structures shown in fig. 4 to 7 is that: the cross sections of the second touch signal lines 1 connected to one first touch signal line 4 are located on at least two different vertical lines, and the cross sections of the at least two second touch signal lines 1 are located on the same vertical line.
Hereinafter, the structure shown in fig. 11 will be described as an example. Fig. 11 is a schematic cross-sectional view at CC' of fig. 10. As shown in fig. 11, the array substrate 30 in the sector 10 includes: the first insulating layer 40 is disposed between the first metal layer M1 and the second metal layer M2, and between the first metal layer M1 and the second metal layer M2. As shown in fig. 11, the array substrate 30 may further include: a base substrate 60.
As shown in fig. 11 and 10, the display area 20 of the array substrate may include a first metal layer M1 and a second metal layer M2, wherein the first metal layer M1 includes scan lines, and the second metal layer M2 includes data lines 2 and a plurality of first touch signal lines 4.
As shown in fig. 11, in the array substrate 30 at CC' in fig. 10, the number of the second touch signal lines 1 connected to one first touch signal line 4 is 3, among the three second touch signal lines 1, the first second touch signal line 11 is located in the first metal layer M1, the second touch signal line 12 is located in the second metal layer M2, the third second touch signal line 13 is located in the first metal layer M1, and the three second touch signal lines 1 are connected to one first touch signal line 4.
Specifically, as shown in fig. 11, in three second touch signal lines 1 connected to one first touch signal line 4, a cross section of the first second touch signal line 11 and a cross section of the second touch signal line 12 are located on the same vertical line, and a cross section of the first second touch signal line 11 and a cross section of the third second touch signal line 13 are located on two different vertical lines.
As shown in fig. 11, on the array substrate 30, the data lines 2 in the sector 10 are still located in the second metal layer M2.
The arrangement structure shown in fig. 11 is only schematic, and in the actual implementation of the present solution, there may be other various arrangement structures, which are not described in detail herein.
It should be noted that, in the second touch signal 1 electrically connected to the same first touch signal line 4, the second touch signal lines 1 located in different layers may partially overlap.
Furthermore, it should be noted that, in the embodiment of the present invention, similar improvement may be performed on other signal lines except for the touch signal line, for example, the data line, the gate line lead, and the like, so as to achieve the purposes of reducing the resistance of the signal lines and speeding up the signal detection accuracy, and further description is not repeated herein.
Based on the array substrate provided in the first embodiment, an embodiment of the invention provides a touch panel. Please refer to fig. 12, which is a schematic structural diagram of a touch panel according to an embodiment of the present invention. As shown in fig. 12, the touch panel includes: the array substrate 120 is described above.
Based on the array substrate provided in the first embodiment, an embodiment of the present invention provides a touch device, including: the touch panel is provided.
The technical scheme of the embodiment of the invention has the following beneficial effects:
in the embodiment of the invention, one first touch signal line positioned in the display area is correspondingly and electrically connected with a plurality of second touch signal lines positioned in the sector area, the plurality of touch signal lines in the sector area are positioned in different layers, the safe distance between two adjacent second touch signal lines is not required to be reserved, and the width of the sector area is not increased; in addition, because the plurality of second touch control lines connected in parallel are positioned in the sector area, the aperture opening ratio of the touch control panel is not affected; in the embodiment of the present invention, the touch signal transmitted by one first touch signal line may be transmitted through a plurality of second touch signal lines, and thus, the plurality of second touch signal lines connected to the same first touch signal line are equivalent to a parallel connection relationship, so that, compared with a scheme of transmitting the touch signal by one second touch signal line, the total resistance of the touch signal lines may be significantly reduced, and further, signal delay may be effectively reduced in the process of transmitting the touch signal, and the display effect and touch sensitivity of the touch panel may be improved, and furthermore, by connecting a plurality of second touch signal lines in parallel in the sector area, the aperture ratio of the touch panel may not be affected. Therefore, the technical scheme provided by the embodiment of the invention can solve the problems of poor display effect and low touch sensitivity caused by large resistance of the touch signal line in the prior art to a certain extent.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the system, the apparatus and the unit described above may refer to the corresponding processes in the foregoing embodiment of the array substrate, and are not described herein again.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. An array substrate, comprising:
the touch control device comprises a display area and a sector area, wherein a plurality of first touch control signal lines are positioned in the display area, and a plurality of second touch control signal lines are positioned in the sector area; the sector area is positioned between the display area and the integrated circuit, the second touch signal line is used as a connecting line between the first touch signal line and the integrated circuit, one end of the second touch signal line is electrically connected with the first touch signal line, and the other end of the second touch signal line is electrically connected with the integrated circuit; in the display area, the data lines and the first touch signal lines are on different metal layers;
the touch control electrode layer comprises a plurality of touch control electrode units, and each touch control electrode unit is electrically connected with at least one first touch control signal line in a display area;
at least part of the first touch signal lines are electrically connected with a plurality of second touch signal lines positioned in the sector area;
the second touch signal lines are distributed in at least two metal layers;
when the number of the second touch signal lines is at least three,
in a direction perpendicular to the plane of the array substrate, projections of at least two second touch signal lines of the at least three second touch signal lines are not overlapped, and projections of the at least two second touch signal lines are overlapped, and all the second touch signal lines are distributed in the two metal layers;
the sector area is also provided with data lines, the data lines are not electrically connected with the second touch signal lines, all the data lines are arranged in the same metal layer, and the data lines are arranged in one of the metal layers distributed with the second touch signal lines;
in the direction perpendicular to the plane of the array substrate, the projections of all the second touch signal lines are not overlapped with the projections of the data lines.
2. The array substrate of claim 1,
the array substrate comprises a first metal layer, a second metal layer and a third metal layer, and an insulating layer is arranged between every two adjacent metal layers;
in the display area, the first metal layer comprises scanning lines, the second metal layer comprises data lines, and the third metal layer comprises the plurality of first touch signal lines;
in the sector area, the plurality of second touch signal lines are distributed in the second metal layer and the third metal layer.
3. The array substrate of claim 1,
each first touch signal line is electrically connected with a plurality of second touch signal lines positioned in the sector.
4. The array substrate of claim 1, wherein the touch electrode layer is electrically connected to the first touch signal lines in the display region through vias;
and part of the first touch signal lines are electrically connected with the second touch signal lines in the sector area through line changing holes.
5. A touch panel comprising the array substrate according to any one of claims 1 to 4.
6. A touch device comprising the touch panel according to claim 5.
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| CN201710217494.2A CN106959783B (en) | 2017-04-05 | 2017-04-05 | Array substrate, touch panel and touch device |
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| CN201710217494.2A CN106959783B (en) | 2017-04-05 | 2017-04-05 | Array substrate, touch panel and touch device |
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| CN107390942A (en) * | 2017-08-17 | 2017-11-24 | 武汉天马微电子有限公司 | Display substrate, display panel and display device |
| CN107479283B (en) * | 2017-08-30 | 2020-07-07 | 厦门天马微电子有限公司 | Array substrate, display panel and display device |
| CN107678590B (en) * | 2017-09-29 | 2021-12-14 | 上海中航光电子有限公司 | Touch display panel and driving method thereof |
| KR102588343B1 (en) * | 2017-10-27 | 2023-10-11 | 엘지디스플레이 주식회사 | Touch display device |
| CN108037608A (en) * | 2018-01-02 | 2018-05-15 | 京东方科技集团股份有限公司 | Array base palte, touch-control display panel and display device |
| CN108415601B (en) * | 2018-03-12 | 2020-12-25 | 京东方科技集团股份有限公司 | Wiring structure, manufacturing method thereof and display device |
| US11727859B2 (en) | 2018-10-25 | 2023-08-15 | Boe Technology Group Co., Ltd. | Display panel and display device |
| CN109461405B (en) * | 2018-11-13 | 2021-01-26 | 京东方科技集团股份有限公司 | Array substrate and light field display device |
| US11804514B2 (en) | 2018-11-13 | 2023-10-31 | Boe Technology Group Co., Ltd. | Array substrate and light field display device with overlapping signal lines |
| CN109725770B (en) * | 2018-12-27 | 2022-04-29 | 上海中航光电子有限公司 | Touch panel and touch display device |
| CN110047847B (en) * | 2019-03-29 | 2021-05-07 | 武汉华星光电技术有限公司 | Display panel |
| KR20210001535A (en) | 2019-06-28 | 2021-01-06 | 엘지디스플레이 주식회사 | Display device |
| CN112540695B (en) * | 2019-09-23 | 2024-07-16 | 瀚宇彩晶股份有限公司 | Touch display device |
| CN110837820B (en) * | 2019-11-26 | 2022-05-31 | 厦门天马微电子有限公司 | Array substrate and display panel |
| CN111665998B (en) * | 2020-07-09 | 2022-01-04 | 武汉华星光电半导体显示技术有限公司 | Touch control display panel |
| CN116267019A (en) * | 2021-10-19 | 2023-06-20 | 京东方科技集团股份有限公司 | Array substrate and display panel |
| CN117352489A (en) * | 2022-06-21 | 2024-01-05 | 长鑫存储技术有限公司 | Semiconductor structure, manufacturing method thereof, memory chip and electronic equipment |
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| CN102810035A (en) * | 2012-07-09 | 2012-12-05 | 友达光电股份有限公司 | Projection-type capacitive touch panel |
| CN105652498A (en) * | 2016-03-22 | 2016-06-08 | 上海中航光电子有限公司 | Array substrate, touch display panel and touch display device |
| CN105930008B (en) * | 2016-05-04 | 2018-12-25 | 武汉华星光电技术有限公司 | A kind of embedded touch LCD panel and its array substrate |
| CN106201094A (en) * | 2016-07-19 | 2016-12-07 | 武汉华星光电技术有限公司 | Array base palte and touch control display |
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