CN111930256B - Touch substrate and display device - Google Patents
Touch substrate and display device Download PDFInfo
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- CN111930256B CN111930256B CN202010790399.3A CN202010790399A CN111930256B CN 111930256 B CN111930256 B CN 111930256B CN 202010790399 A CN202010790399 A CN 202010790399A CN 111930256 B CN111930256 B CN 111930256B
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- 239000000758 substrate Substances 0.000 title claims abstract description 86
- 238000004806 packaging method and process Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 6
- 230000008054 signal transmission Effects 0.000 abstract description 6
- 239000010410 layer Substances 0.000 description 34
- 238000005538 encapsulation Methods 0.000 description 7
- 239000011229 interlayer Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- 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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- G—PHYSICS
- 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
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
- G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
Abstract
The disclosure provides a touch substrate and a display device. The touch substrate includes: the touch control device comprises a substrate base plate, a touch control base plate and a touch control base plate, wherein the substrate base plate is provided with a first area and a second area surrounding the first area, the boundary between the first area and the second area is divided into a plurality of boundary sections, and the first area corresponds to a touch control area of the touch control base plate; the touch electrodes are arranged on the substrate and located in the first area, and two ends of each touch electrode extend to the boundary; the plurality of touch electrodes comprise a plurality of first touch electrodes and a plurality of second touch electrodes; one end of each of the plurality of signal wires is configured to be connected with an external circuit interface, the other end of each of the plurality of signal wires is connected with the plurality of touch electrodes in a one-to-one correspondence manner, and only one of the end parts of the first touch electrode and the end part of the second touch electrode extending to the same boundary section is connected with the signal wire. The present disclosure can mitigate the effects suffered by the signal transmission process.
Description
Technical Field
The disclosure relates to the technical field of display, in particular to a touch substrate and a display device.
Background
Touch technologies mainly include resistive, capacitive, and infrared optical. The capacitive touch technology has the characteristic of sensitive response and is widely applied to smart phones and tablet computers.
The display screen applying the capacitive touch technology is provided with a touch driving electrode, a touch sensing electrode, a signal line and an external circuit interface. The touch control driving electrode and the touch control sensing electrode are arranged in a crossing mode, and the touch control driving electrode is connected to an external circuit interface through a signal wire so as to receive a driving signal sent by the external circuit interface. The touch sensing electrode is connected to an external circuit interface through a signal wire, so that the external circuit interface receives a sensing signal generated by the touch sensing electrode. However, the signal lines are liable to overlap, which affects the signal transmission process.
Disclosure of Invention
The disclosure provides a touch substrate and a display device, which can reduce the influence of a signal transmission process.
According to one aspect of the present disclosure, there is provided a touch substrate including:
a substrate having a first region having a circular or elliptical shape and a second region surrounding the first region, a boundary between the first region and the second region being divided into a plurality of boundary segments;
the touch electrodes are arranged on the substrate base plate and are positioned in the first area, and two ends of each touch electrode extend to the boundary; the plurality of touch electrodes comprise a plurality of first touch electrodes and a plurality of second touch electrodes, the plurality of first touch electrodes extend along a first direction, and the plurality of second touch electrodes extend along a second direction crossing the first direction;
the signal wires are arranged on the substrate and located in the second area, one ends of the signal wires are configured to be connected with an external circuit interface, the other ends of the signal wires are connected with the touch electrodes in a one-to-one correspondence mode, and only one of the end parts of the first touch electrode and the end part of the second touch electrode, which extend to the same boundary section, is connected with the signal wires.
Further, the boundary is divided into a first boundary section, a second boundary section, a third boundary section and a fourth boundary section;
the first direction is perpendicular to the second direction, one end of a part of the second touch electrode extends to the first boundary section, and the other end extends to the second boundary section; one end of the rest second touch electrode extends to the third boundary section, and the other end extends to the fourth boundary section; one end of part of the first touch electrode extends to the first boundary section, and the other end extends to the fourth boundary section; one end of the rest of the first touch electrode extends to the second boundary section, and the other end extends to the third boundary section;
the end part of the first touch electrode extending to the first boundary section and the end part of the first touch electrode extending to the third boundary section are connected with the signal line; and the end part of the second touch electrode extending to the second boundary section and the end part of the second touch electrode extending to the fourth boundary section are connected with the signal line.
Further, the external circuit interface is arranged in the second area, is positioned on the same side of the substrate base plate as the signal line, and is positioned on one side of the second boundary section away from the first boundary section;
the plurality of signal lines includes:
the first wiring group comprises a plurality of signal wires, and the signal wires in the first wiring group are connected with the end parts of the first touch electrodes extending to the first boundary section in a one-to-one correspondence manner;
the second wiring group is arranged in parallel with the first wiring group and comprises a plurality of signal wires, and the signal wires in the second wiring group are connected with the end parts of the second touch electrodes extending to the second boundary section in a one-to-one correspondence manner;
the third wiring group comprises a plurality of signal wires, and the signal wires in the third wiring group are connected with the end parts of the first touch electrodes extending to the third boundary section in a one-to-one correspondence manner;
and the fourth wiring group is arranged in parallel with the third wiring group and comprises a plurality of signal wires, and the signal wires in the fourth wiring group are connected with the end parts of the second touch electrodes extending to the fourth boundary section in a one-to-one correspondence manner.
Further, the length of the signal wire in the first wire group is larger than the length of the signal wire in the third wire group, and the sectional area of the signal wire in the first wire group is larger than the sectional area of the signal wire in the third wire group; the length of the signal wire in the second wire group is larger than that of the signal wire in the fourth wire group, and the sectional area of the signal wire in the second wire group is larger than that of the signal wire in the fourth wire group.
Further, the pattern of the signal line in the first wiring group is symmetrically arranged with the pattern of the signal line in the fourth wiring group, and the pattern of the signal line in the second wiring group is symmetrically arranged with the pattern of the signal line in the third wiring group.
Further, a plurality of signal lines in any one of the wiring groups are arranged in parallel.
Further, the touch substrate further includes:
the first shielding wire is arranged on the substrate base plate and is positioned between the first wiring group and the second wiring group;
the second shielding wire is arranged on the substrate base plate and is positioned between the third wiring group and the fourth wiring group;
the first shielding wire and the second shielding wire are connected with a constant power supply signal end.
Further, the first touch electrode is a touch sensing electrode, the second touch electrode is a touch driving electrode, the plurality of signal lines comprise a plurality of first signal lines and a plurality of second signal lines, the plurality of first signal lines are connected with the plurality of touch sensing electrodes in one-to-one correspondence, and the plurality of second signal lines are connected with the plurality of touch driving electrodes in one-to-one correspondence.
Further, the substrate base plate includes:
a substrate;
a light-emitting layer disposed on the substrate;
the packaging layer is arranged on one side of the light-emitting layer, which is far away from the substrate;
the touch electrodes and the signal wires are arranged on one side of the packaging layer far away from the light-emitting layer.
According to an aspect of the present disclosure, there is provided a display device including the touch substrate as described in any one of the above.
According to the touch substrate and the display device, the plurality of signal lines are connected with the plurality of touch electrodes in one-to-one correspondence, only one of the end parts of the first touch electrode and the end parts of the second touch electrode extending to the same boundary section is connected with the signal line, the end parts of the first touch electrode and the end parts of the second touch electrode extending to the same boundary section are prevented from being connected with the signal line, the number of the signal lines at the position of the boundary section is reduced, overlapping of the signal lines is prevented, and the influence on the signal transmission process is weakened.
Drawings
Fig. 1 is a schematic diagram of a touch substrate in the related art.
Fig. 2 is a partial schematic view of the structure shown in fig. 1.
Fig. 3 is a schematic view of a touch substrate according to an embodiment of the disclosure.
Fig. 4 is another schematic view of a touch substrate according to an embodiment of the disclosure.
Fig. 5 is a partial schematic view of a touch substrate according to an embodiment of the disclosure.
Fig. 6 is a schematic cross-sectional view of a first trace group and a second trace group of a touch substrate according to an embodiment of the disclosure.
Fig. 7 is a schematic cross-sectional view of a third trace group and a fourth trace group of a touch substrate according to an embodiment of the disclosure.
Reference numerals illustrate: 1. a substrate base; 101. a first region; 1011. a boundary section; 1011a, a first boundary segment; 1011b, a second boundary segment; 1011c, a third boundary segment; 1011d, fourth boundary segment; 102. a second region; 2. a touch electrode; 201. a first touch electrode; 202. a second touch electrode; 3. a signal line; 301. a first wiring group; 3011. a first signal line; 302. a second wiring group; 3021. a second signal line; 303. a third wiring group; 304. a fourth wiring group; 4. an external circuit interface; 5. a first shield wire; 6. an encapsulation layer; 7. a buffer layer; 8. an interlayer insulating layer; 9. a protective layer; 10. a second shield wire; 11. and a touch substrate.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Rather, they are merely examples of apparatus consistent with some aspects of the disclosure as detailed in the accompanying claims.
The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. Unless defined otherwise, technical or scientific terms used in this disclosure should be given the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. "plurality" or "plurality" means two or more. Unless otherwise indicated, the terms "front," "rear," "lower," and/or "upper" and the like are merely for convenience of description and are not limited to one location or one spatial orientation. The word "comprising" or "comprises", and the like, means that elements or items appearing before "comprising" or "comprising" are encompassed by the element or item recited after "comprising" or "comprising" and equivalents thereof, and that other elements or items are not excluded. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. As used in this disclosure 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 also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.
In the related art, as shown in fig. 1 and 2, the touch substrate 11 includes a first touch electrode 201 and a second touch electrode 202 disposed in a crossing manner. The first touch electrode 201 and the second touch electrode 202 are connected to an external circuit interface through the signal lines 3, which results in a large number of signal lines 3 disposed in a partial area of the touch substrate 11, so that the signal lines 3 are easy to overlap, and influence the signal transmission process.
In order to solve the above technical problems, embodiments of the present disclosure provide a touch substrate. As shown in fig. 3, the touch substrate may include a substrate 1, a plurality of touch electrodes 2, an external circuit interface 4, and a plurality of signal lines 3, wherein:
the base substrate 1 has a first region 101 having a circular or elliptical shape and a second region 102 surrounding the first region 101. The boundary between the first region 101 and the second region 102 is divided into a plurality of boundary segments 1011. The touch electrodes 2 are disposed on the substrate 1 and located in the first area 101. Both ends of each touch electrode 2 extend to the boundary. The plurality of touch electrodes 2 includes a plurality of first touch electrodes 201 and a plurality of second touch electrodes 202. The plurality of first touch electrodes 201 all extend along the first direction. The plurality of second touch electrodes 202 each extend along a second direction intersecting the first direction. The plurality of signal lines 3 are all disposed on the substrate 1 and located in the second region. One ends of the plurality of signal wires 3 are configured to be connected with an external circuit interface 4, and the other ends of the plurality of signal wires 3 are connected with the plurality of touch electrodes 2 in a one-to-one correspondence manner. Only one of the end of the first touch electrode 201 and the end of the second touch electrode 202 extending to the same boundary section 1011 is connected to the signal line 3.
According to the touch substrate of the embodiment of the disclosure, the plurality of signal lines 3 are connected with the plurality of touch electrodes 2 in a one-to-one correspondence manner, and only one of the end part of the first touch electrode 201 and the end part of the second touch electrode 202 extending to the same boundary section 1011 is connected with the signal line 3, so that the end part of the first touch electrode 201 and the end part of the second touch electrode 202 extending to the same boundary section 1011 are prevented from being connected with the signal line 3, the number of the signal lines 3 at the position of the boundary section 1011 is reduced, overlapping of the signal lines 3 can be prevented, and the influence on the signal transmission process is weakened.
The following describes each portion of the touch substrate according to the embodiment of the present disclosure in detail:
as shown in fig. 3, the substrate 1 is a supporting structure of a touch substrate. In an embodiment of the present disclosure, the touch substrate is applied to an external touch screen, and the substrate 1 is a glass substrate or the like. In another embodiment of the present disclosure, the substrate base plate 1 may include a substrate, a light emitting layer, and an encapsulation layer. The light emitting layer may be provided on a substrate. The encapsulation layer may be provided on a side of the light emitting layer remote from the substrate. The plurality of touch electrodes 2 and the plurality of signal lines 3 are all disposed on a side of the encapsulation layer away from the light emitting layer. Compared with an externally hung touch screen, the touch electrode 2 and the signal wire 3 are arranged on the packaging layer, so that the thickness of the screen can be reduced, and meanwhile, the attaching tolerance is avoided. Wherein, a driving circuit layer can be arranged between the light-emitting layer and the substrate to drive the light-emitting layer to emit light.
As shown in fig. 5, the substrate base 1 may include a first region 101 and a second region 102 surrounding the first region 101. The first area 101 may be circular, so that the touch substrate is applied to a circular display, and of course, the first area 101 may also be elliptical. The first region 101 has a closed annular boundary. The boundary described above may be divided into a plurality of boundary segments 1011. The number of boundary segments 1011 may be two, three, four or more. Taking the number of boundary segments 1011 as four as an example, the above boundary is divided into a first boundary segment 1011a, a second boundary segment 1011b, a third boundary segment 1011c, and a fourth boundary segment 1011d. Wherein the first boundary section 1011a is connected to a second boundary section 1011b, the second boundary section 1011b is connected to a third boundary section 1011c, the third boundary section 1011c is connected to a fourth boundary section 1011d, and the fourth boundary section 1011d is connected to the first boundary section 1011a. Wherein the four border segments 1011 may be the same length. Taking the first region 101 as an example of a circle, the four boundary segments 1011 are each a quarter of an arc.
As shown in fig. 5, the embodiment of the present disclosure uses the connection point of the first boundary section 1011a and the second boundary section 1011b as a first connection point, the connection point of the second boundary section 1011b and the third boundary section 1011c as a second connection point, the connection point of the third boundary section 1011c and the fourth boundary section 1011d as a third connection point, and the connection point of the first boundary section 1011a and the fourth boundary section 1011d as a fourth connection point. When the four boundary sections 1011 are all quarter arcs, the connection line of the first connection point and the third connection point passes through the center of the circular first area 101, the connection line of the second connection point and the fourth connection point also passes through the center of the circular first area 101, and the connection line of the first connection point and the third connection point is perpendicular to the connection line of the second connection point and the fourth connection point.
As shown in fig. 5, a plurality of touch electrodes 2 may be disposed on the substrate 1. The plurality of touch electrodes 2 may include a plurality of first touch electrodes 201 and a plurality of second touch electrodes 202. The plurality of first touch electrodes 201 all extend along the first direction. The first direction is the X direction in fig. 5. The plurality of second touch electrodes 202 extend along a second direction intersecting the first direction, that is, the first touch electrodes 201 and the second touch electrodes 202 are disposed to intersect. The second direction is the Y direction in fig. 5. The position where the first touch electrode 201 and the second touch electrode 202 intersect may form a capacitance. By detecting this change in capacitance, the location of the touch point can be determined. Further, the first direction may be perpendicular to the second direction, that is, the first touch electrode 201 is perpendicular to the second touch electrode 202. In an embodiment of the disclosure, the first touch electrode 201 is a touch sensing electrode, and the second touch electrode 202 is a touch driving electrode. In another embodiment of the present disclosure, the first touch electrode 201 is a touch driving electrode, and the second touch electrode 202 is a touch sensing electrode. In addition, along the first direction, each of the first touch electrodes 201 may include a plurality of first touch electrode blocks connected in sequence. Along the second direction, each of the second touch electrodes 202 may include a plurality of second touch electrode blocks connected in sequence.
As shown in fig. 5, the plurality of touch electrodes 2 are located in the first area 101 of the substrate 1, and both ends of each touch electrode 2 extend to the above boundary, that is, both ends of each touch electrode 2 are in contact with the line where the boundary is located. In addition, the two ends of each touch electrode 2 do not extend to the same boundary section 1011. Specifically, in the case where the connection line between the first connection point and the third connection point is parallel to the first direction and the connection line between the second connection point and the fourth connection point is parallel to the second direction, one end of the portion of the second touch electrode 202 extends to the first boundary section 1011a, and the other end extends to the second boundary section 1011b, that is, a portion of the second touch electrode 202 is connected between the first boundary section 1011a and the second boundary section 1011 b; one end of the remaining second touch electrode 202 extends to the third boundary section 1011c, and the other end extends to the fourth boundary section 1011d; one end of a part of the first touch electrode 201 extends to the first boundary section 1011a, and the other end extends to the fourth boundary section 1011d; one end of the remaining first touch electrode 201 extends to the second boundary section 1011b, and the other end extends to the third boundary section 1011c.
In fig. 4, only one first touch electrode 201 and one second touch electrode 202 are shown in the first area 101 for clarity of illustration, and each touch electrode 2 is not shown as in fig. 3. As shown in fig. 3 and 4, the external circuit interface 4 is disposed on the substrate 1 and is located in the second area 102. Taking the first touch electrode 201 as a touch sensing electrode and the second touch electrode 202 as a touch driving electrode as an example, the external circuit interface 4 is configured to send a driving signal to the touch driving electrode and receive a sensing signal generated by the touch sensing electrode. The external circuit interface 4 may be located on a side of the second boundary section 1011b remote from the first boundary section 1011a.
As shown in fig. 3, the signal line 3 is used to connect the external circuit interface 4 and the touch electrode 2. The number of the signal lines 3 is plural, one ends of the signal lines 3 are configured to be connected to an external circuit interface 4, and the other ends of the signal lines 3 are connected to the touch electrodes 2 in a one-to-one correspondence. Wherein, one touch electrode 2 is connected with only one signal line 3. Further, only one of the end of the first touch electrode 201 and the end of the second touch electrode 202 extending to the same boundary section 1011 is connected to the signal line 3. Specifically, the end portion of the first touch electrode 201 extending to the first boundary section 1011a and the end portion of the first touch electrode 201 extending to the third boundary section 1011c are connected to the signal line 3, and the end portion of the second touch electrode 202 extending to the first boundary section 1011a and the end portion of the second touch electrode 202 extending to the third boundary section 1011c are not connected to the signal line 3; the end of the second touch electrode 202 extending to the second boundary section 1011b and the end of the second touch electrode 202 extending to the fourth boundary section 1011d are connected to the signal line 3, and the end of the first touch electrode 201 extending to the second boundary section 1011b and the end of the first touch electrode 201 extending to the fourth boundary section 1011d are not connected to the signal line 3.
As shown in fig. 3 and 4, the plurality of signal lines 3 may include a first wire group 301, a second wire group 302, a third wire group 303, and a fourth wire group 304. The first trace set 301 may include a plurality of signal wires 3, where the plurality of signal wires 3 in the first trace set 301 are connected to the end portions of the first touch electrode 201 extending to the first border segment 1011a in a one-to-one correspondence manner. The second trace set 302 may be disposed in parallel with the first trace set 301, and includes a plurality of signal wires 3, where the plurality of signal wires 3 in the second trace set 302 are connected to the ends of the second touch electrode 202 extending to the second boundary section 1011b in a one-to-one correspondence manner. The third trace set 303 includes a plurality of signal wires 3, and the plurality of signal wires 3 in the third trace set 303 are connected to the ends of the first touch electrode 201 extending to the third boundary 1011c in a one-to-one correspondence manner. The fourth wire set 304 is disposed in parallel with the third wire set 303, and includes a plurality of signal wires 3, and the plurality of signal wires 3 in the fourth wire set 304 are connected to the ends of the second touch electrode 202 extending to the fourth boundary section 1011d in a one-to-one correspondence manner. By dividing the plurality of signal lines 3 into the first wiring group 301, the second wiring group 302, the third wiring group 303, and the fourth wiring group 304 and arranging the first wiring group 301 in parallel with the second wiring group 302 and arranging the third wiring group 303 in parallel with the fourth wiring group 304, overlapping of the signal lines 3 can be further prevented. Further, the plurality of signal lines 3 may include a plurality of first signal lines 3011 and a plurality of second signal lines 3021. The signal line 3 in the first wire set 301 and the signal line 3 in the third wire set 303 are both the first signal line 3011, and the signal line 3 in the second wire set 302 and the signal line 3 in the fourth wire set 304 are both the second signal line 3021.
Fig. 6 shows a schematic cross-sectional view of a first trace group 301 and a second trace group 302. Fig. 7 shows a schematic cross-sectional view of the third trace group 303 and the fourth trace group 304. In fig. 6 and 7, only one signal line 3 is shown per trace group. As shown in fig. 4, 6 and 7, the length of the first signal line 3011 in the first wire group 301 is greater than the length of the first signal line 3011 in the third wire group 303, and the cross-sectional area of the first signal line 3011 in the first wire group 301 is greater than the cross-sectional area of the first signal line 3011 in the third wire group 303, so that the resistance of the first signal line 3011 in the first wire group 301 and the resistance of the first signal line 3011 in the third wire group 303 tend to be the same. The length of the second signal line 3021 in the second wire set 302 is greater than the length of the second signal line 3021 in the fourth wire set 304, and the cross-sectional area of the second signal line 3021 in the second wire set 302 is greater than the cross-sectional area of the second signal line 3021 in the fourth wire set 304, so that the resistances of the second signal line 3021 in the second wire set 302 and the second signal line 3021 in the fourth wire set 304 tend to be the same. The pattern of the signal lines 3 in the first wire group 301 may be symmetrically arranged with the pattern of the signal lines 3 in the fourth wire group 304, and the pattern of the signal lines 3 in the second wire group 302 may be symmetrically arranged with the pattern of the signal lines 3 in the third wire group 303. The plurality of signal wires 3 in any wiring group are arranged in parallel.
As shown in fig. 4, 6 and 7, the touch substrate of the embodiment of the present disclosure may further include a first shielding line 5 and a second shielding line 10. The first shielding wire 5 may be disposed on the substrate 1 and located between the first trace group 301 and the second trace group 302. The second shielding wire 10 may be disposed on the substrate 1 and between the third wire set 303 and the fourth wire set 304. The first shielding wire 5 is connected to a constant power signal terminal to shield noise signals between the first wire set 301 and the second wire set 302. The second shielding wire 10 is connected to a constant power signal terminal to shield noise signals between the third wire set 303 and the fourth wire set 304. The first shielding wire 5 and the second shielding wire 10 may be disposed on a side of the encapsulation layer 6 away from the light emitting layer. The constant power signal terminal may be grounded.
In addition, as shown in fig. 6 and 7, the substrate 1 according to the embodiment of the present disclosure may further include a buffer layer 7 disposed on a side of the encapsulation layer 6 remote from the light emitting layer. The first signal line 3011, the second signal line 3021, the first shielding line 5, and the second shielding line 10 are disposed on a side of the buffer layer 7 away from the encapsulation layer 6. The touch substrate may further include an interlayer insulating layer 8 and a protective layer 9. The second signal line 3021 in the second wiring group 302 and the first signal line 3011 in the third wiring group 303 are both covered between the interlayer insulating layer 8 and the buffer layer 7. The first signal line 3011, the first shield line 5, the second shield line 10, and the second signal line 3021 in the fourth wiring group 304 in the first wiring group 301 are covered with the buffer layer 7 via a via hole penetrating the interlayer insulating layer 8. The protection layer 9 is disposed on a side of the interlayer junction layer away from the buffer layer 7, and covers the first signal line 3011, the first shielding line 5, the second shielding line 10, and the second signal line 3021 in the fourth wiring group 304 in the first wiring group 301.
The embodiment of the disclosure also provides a display device. The display device may include the touch substrate according to any of the above embodiments. The display device may be a wearable display device such as a wristwatch, glasses, etc., but the embodiments of the present disclosure are not particularly limited thereto. Since the touch substrate in the display device of the embodiment of the disclosure is the same as the touch substrate in the embodiment of the touch substrate, the touch substrate has the same beneficial effects and is not described herein.
The foregoing disclosure is not intended to be limited to the preferred embodiments of the present disclosure, but rather is to be construed as limited to the embodiments disclosed, and modifications and equivalent arrangements may be made in accordance with the principles of the present disclosure without departing from the scope of the disclosure.
Claims (9)
1. A touch substrate, comprising:
the touch control device comprises a substrate base plate, a touch control base plate and a touch control base plate, wherein the substrate base plate is provided with a first area and a second area, the first area is circular or elliptical, the second area surrounds the first area, the boundary between the first area and the second area is divided into a plurality of boundary sections, and the first area corresponds to a touch control area of the touch control base plate;
the touch electrodes are arranged on the substrate base plate and are positioned in the first area, and two ends of each touch electrode extend to the boundary; the plurality of touch electrodes comprise a plurality of first touch electrodes and a plurality of second touch electrodes, the plurality of first touch electrodes extend along a first direction, and the plurality of second touch electrodes extend along a second direction crossing the first direction;
the signal wires are arranged on the substrate and located in the second area, one ends of the signal wires are configured to be connected with an external circuit interface, the other ends of the signal wires are connected with the touch electrodes in a one-to-one correspondence manner, and only one of the end parts of the first touch electrode and the end part of the second touch electrode extending to the same boundary section is connected with the signal wires;
the boundary is divided into a first boundary section, a second boundary section, a third boundary section and a fourth boundary section;
the first direction is perpendicular to the second direction, one end of a part of the second touch electrode extends to the first boundary section, and the other end extends to the second boundary section; one end of the rest second touch electrode extends to the third boundary section, and the other end extends to the fourth boundary section; one end of part of the first touch electrode extends to the first boundary section, and the other end extends to the fourth boundary section; one end of the rest of the first touch electrode extends to the second boundary section, and the other end extends to the third boundary section;
the end part of the first touch electrode extending to the first boundary section and the end part of the first touch electrode extending to the third boundary section are connected with the signal line; and the end part of the second touch electrode extending to the second boundary section and the end part of the second touch electrode extending to the fourth boundary section are connected with the signal line.
2. The touch substrate according to claim 1, wherein the external circuit interface is disposed in the second area, and is located on the same side of the substrate as the signal line, and is located on a side of the second boundary section away from the first boundary section;
the plurality of signal lines includes:
the first wiring group comprises a plurality of signal wires, and the signal wires in the first wiring group are connected with the end parts of the first touch electrodes extending to the first boundary section in a one-to-one correspondence manner;
the second wiring group is arranged in parallel with the first wiring group and comprises a plurality of signal wires, and the signal wires in the second wiring group are connected with the end parts of the second touch electrodes extending to the second boundary section in a one-to-one correspondence manner;
the third wiring group comprises a plurality of signal wires, and the signal wires in the third wiring group are connected with the end parts of the first touch electrodes extending to the third boundary section in a one-to-one correspondence manner;
and the fourth wiring group is arranged in parallel with the third wiring group and comprises a plurality of signal wires, and the signal wires in the fourth wiring group are connected with the end parts of the second touch electrodes extending to the fourth boundary section in a one-to-one correspondence manner.
3. The touch substrate according to claim 2, wherein a length of the signal line in the first wiring group is greater than a length of the signal line in the third wiring group, and a cross-sectional area of the signal line in the first wiring group is greater than a cross-sectional area of the signal line in the third wiring group; the length of the signal wire in the second wire group is larger than that of the signal wire in the fourth wire group, and the sectional area of the signal wire in the second wire group is larger than that of the signal wire in the fourth wire group.
4. The touch substrate according to claim 2, wherein the pattern of the signal lines in the first trace group is symmetrically arranged with the pattern of the signal lines in the fourth trace group, and the pattern of the signal lines in the second trace group is symmetrically arranged with the pattern of the signal lines in the third trace group.
5. The touch substrate according to claim 2, wherein a plurality of the signal lines in any one of the trace groups are arranged in parallel.
6. The touch substrate of claim 2, further comprising:
the first shielding wire is arranged on the substrate base plate and is positioned between the first wiring group and the second wiring group;
the second shielding wire is arranged on the substrate base plate and is positioned between the third wiring group and the fourth wiring group;
the first shielding wire and the second shielding wire are connected with a constant power supply signal end.
7. The touch substrate according to claim 1, wherein the first touch electrode is a touch sensing electrode, the second touch electrode is a touch driving electrode, the plurality of signal lines include a plurality of first signal lines and a plurality of second signal lines, the plurality of first signal lines are connected in one-to-one correspondence with the plurality of touch sensing electrodes, and the plurality of second signal lines are connected in one-to-one correspondence with the plurality of touch driving electrodes.
8. The touch substrate of claim 1, wherein the substrate comprises:
a substrate;
a light-emitting layer disposed on the substrate;
the packaging layer is arranged on one side of the light-emitting layer, which is far away from the substrate;
the touch electrodes and the signal wires are arranged on one side of the packaging layer far away from the light-emitting layer.
9. A display device comprising the touch substrate of any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010790399.3A CN111930256B (en) | 2020-08-07 | 2020-08-07 | Touch substrate and display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010790399.3A CN111930256B (en) | 2020-08-07 | 2020-08-07 | Touch substrate and display device |
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| Publication Number | Publication Date |
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| CN111930256A CN111930256A (en) | 2020-11-13 |
| CN111930256B true CN111930256B (en) | 2024-03-15 |
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| CN202010790399.3A Active CN111930256B (en) | 2020-08-07 | 2020-08-07 | Touch substrate and display device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022252033A1 (en) * | 2021-05-31 | 2022-12-08 | 京东方科技集团股份有限公司 | Touch panel and display device |
| CN113961098B (en) * | 2021-10-22 | 2024-03-15 | 京东方科技集团股份有限公司 | Touch substrate and display panel |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104820321A (en) * | 2015-05-08 | 2015-08-05 | 厦门天马微电子有限公司 | Array substrate and display panel |
| CN106354351A (en) * | 2016-08-30 | 2017-01-25 | 京东方科技集团股份有限公司 | Touch substrate, manufacturing method, display device, fingerprint identification device and method |
| WO2018006231A1 (en) * | 2016-07-04 | 2018-01-11 | Boe Technology Group Co., Ltd. | Touch substrate, touch display panel and touch display apparatus having the same, and fabricating method thereof |
-
2020
- 2020-08-07 CN CN202010790399.3A patent/CN111930256B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104820321A (en) * | 2015-05-08 | 2015-08-05 | 厦门天马微电子有限公司 | Array substrate and display panel |
| WO2018006231A1 (en) * | 2016-07-04 | 2018-01-11 | Boe Technology Group Co., Ltd. | Touch substrate, touch display panel and touch display apparatus having the same, and fabricating method thereof |
| CN106354351A (en) * | 2016-08-30 | 2017-01-25 | 京东方科技集团股份有限公司 | Touch substrate, manufacturing method, display device, fingerprint identification device and method |
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| CN111930256A (en) | 2020-11-13 |
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