Touch panel, display device and touch scanning method

Abstract

The invention relates to a touch panel, display equipment, a touch scanning method and device, a touch chip, a computer readable storage medium and a computer program product. Comprising M * N touch electrodes arranged in an array; the M rows of touch electrodes are divided into a plurality of groups according to rows; each touch electrode is connected with the corresponding first switch control circuit through the corresponding touch signal line; the first switch control circuits respectively connected with the touch electrodes belonging to the same group in each column of touch electrodes are connected to the same scanning driving signal line, and each scanning driving signal line is connected to a touch chip. The M rows of touch electrodes are divided into a plurality of groups according to the rows, and the first switch control circuits corresponding to the plurality of rows of touch electrodes belonging to the plurality of groups can be controlled to be switched on at the same time, so that the simultaneous scanning of the plurality of rows of touch electrodes can be realized, the scanning speed of the touch electrodes on the touch panel is improved, and the scanning time is shortened.

Description

Technical Field

[0001] The present application relates to the field of touch display technology, and in particular to a touch panel, a display device, a touch scanning method, an apparatus, a touch chip, a computer-readable storage medium, and a computer program product. Background Art

[0002] The embedded touch panel has both display function and touch function. The touch panel generally includes multiple rows of touch electrodes. In the traditional technology, the touch electrodes are scanned by scanning line by line. In this method, the scanning time is long and the touch performance is not high. Summary of the invention

[0003] Based on this, it is necessary to provide a touch panel, a display device, a touch scanning method and a touch chip that can improve the touch performance in order to solve the above technical problems.

[0004] In a first aspect, the present application provides a touch panel, comprising: M×N touch electrodes arranged in an array, M×N touch signal lines corresponding to the M×N touch electrodes, M×N first switch control circuits corresponding to the M×N touch electrodes, and a touch chip; wherein:

[0005] The M rows of touch electrodes are divided into multiple groups by row; each touch electrode is connected to the corresponding first switch control circuit through the corresponding touch signal line; the first switch control circuit connected to the touch electrodes belonging to the same group in each column of touch electrodes is connected to the same scan drive signal line, and each scan drive signal line is connected to the touch chip.

[0006] In a second aspect, the present application further provides a display device, comprising the touch panel provided in the first aspect.

[0007] In a third aspect, the present application provides a touch panel, comprising: a plurality of touch electrodes arranged at intervals, a plurality of touch signal lines corresponding to the plurality of touch electrodes, a plurality of first switch control circuits corresponding to the plurality of touch electrodes, and a touch chip; wherein:

[0008] Multiple touch electrodes are divided into multiple groups according to regions, and each touch electrode is connected to a corresponding first switch control circuit through a corresponding touch signal line; the first switch control circuits connected to the touch electrodes belonging to the same group are connected to the same scan drive signal line, and each scan drive signal line is connected to the touch chip.

[0009] In a fourth aspect, the present application further provides a touch scanning method, comprising:

[0010] After entering the touch control stage, for each column of touch control electrodes, the first switch control circuit corresponding to the touch control electrode in the i-th row in each group is controlled to be turned on;

[0011] After the preset time is reached, the first switch control circuit corresponding to the touch electrodes in the i-th row in each group is controlled to be disconnected, and the first switch control circuit corresponding to the touch electrodes in the i+1-th row in each group is controlled to be turned on, (n-1)≥i≥1, n is the number of rows of touch electrodes in each group.

[0012] In a fifth aspect, the present application further provides a touch scanning device, comprising:

[0013] A judgment module, used to judge whether to enter the touch control stage;

[0014] A control module is used for, after entering the touch stage, for each column of touch electrodes, controlling the first switch control circuit corresponding to the touch electrodes in the i-th row in each group to be turned on; after reaching a preset time, controlling the first switch control circuit corresponding to the touch electrodes in the i-th row in each group to be cut off, and controlling the first switch control circuit corresponding to the touch electrodes in the i+1-th row in each group to be turned on, (n-1)≥i≥1, n is the number of rows of touch electrodes in each group.

[0015] In a sixth aspect, the present application further provides a touch control chip, comprising a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the following steps are implemented:

[0016] After entering the touch control stage, for each column of touch control electrodes, the first switch control circuit corresponding to the touch control electrode in the i-th row in each group is controlled to be turned on;

[0017] After the preset time is reached, the first switch control circuit corresponding to the touch electrodes in the i-th row in each group is controlled to be disconnected, and the first switch control circuit corresponding to the touch electrodes in the i+1-th row in each group is controlled to be turned on, (n-1)≥i≥1, n is the number of rows of touch electrodes in each group.

[0018] In a seventh aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the following steps are implemented:

[0019] After entering the touch control stage, for each column of touch control electrodes, the first switch control circuit corresponding to the touch control electrode in the i-th row in each group is controlled to be turned on;

[0020] After the preset time is reached, the first switch control circuit corresponding to the touch electrodes in the i-th row in each group is controlled to be disconnected, and the first switch control circuit corresponding to the touch electrodes in the i+1-th row in each group is controlled to be turned on, (n-1)≥i≥1, n is the number of rows of touch electrodes in each group.

[0021] In an eighth aspect, the present application further provides a computer program product, including a computer program, which implements the following steps when executed by a processor:

[0022] After entering the touch control stage, for each column of touch control electrodes, the first switch control circuit corresponding to the touch control electrode in the i-th row in each group is controlled to be turned on;

[0023] After the preset time is reached, the first switch control circuit corresponding to the touch electrodes in the i-th row in each group is controlled to be disconnected, and the first switch control circuit corresponding to the touch electrodes in the i+1-th row in each group is controlled to be turned on, (n-1)≥i≥1, n is the number of rows of touch electrodes in each group.

[0024] The above-mentioned touch panel, display device, touch scanning method, device, touch chip, computer-readable storage medium and computer program product include: M×N touch electrodes arranged in an array, M×N touch signal lines corresponding to the M×N touch electrodes, M×N first switch control circuits corresponding to the M×N touch electrodes, and a touch chip; wherein, the M rows of touch electrodes are divided into multiple groups by row; each touch electrode is connected to the corresponding first switch control circuit through the corresponding touch signal line; the first switch control circuits connected to the touch electrodes belonging to the same group in each column of touch electrodes are connected to the same scanning drive signal line, and each scanning drive signal line is connected to the touch chip. Since the M rows of touch electrodes are divided into multiple groups by row, the first switch control circuits corresponding to the multiple rows of touch electrodes belonging to the multiple groups can be controlled to be turned on at the same time, so that the simultaneous scanning of the multiple rows of touch electrodes can be realized, which improves the scanning speed of the touch electrodes on the touch panel, reduces the scanning time, and improves the touch performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the drawings required for use in the embodiments of the present application or related technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 is a schematic diagram of a touch panel in one embodiment;

[0027] Figure 2 is a schematic diagram of a touch panel in another embodiment;

[0028] Figure 3 is a schematic diagram of a touch panel in yet another embodiment;

[0029] Figure 4is a schematic structural diagram of a first switch control circuit in an embodiment;

[0030] Figure 5 is a schematic structural diagram of a first switch control circuit in another embodiment;

[0031] Figure 6 is a schematic structural diagram of a second switch control circuit in one embodiment;

[0032] Figure 7 is a schematic structural diagram of a second switch control circuit in another embodiment;

[0033] Figure 8 is a schematic diagram of a touch panel in yet another embodiment;

[0034] Fig. 9 is a cross-sectional view of a touch panel in one embodiment;

[0035] Fig.10 is a schematic diagram of a touch panel in yet another embodiment;

[0036] Fig.11 is a schematic diagram of a flow chart of a touch scanning method in an embodiment;

[0037] Fig.12 is a schematic diagram of a touch panel in yet another embodiment;

[0038] Fig.13 A schematic diagram of timing control in an embodiment;

[0039] Fig.14 FIG. 4 is a structural block diagram of a touch scanning device in an embodiment. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0041] Generally, the touch electrodes on the touch panel are scanned by scanning row by row. This method takes a long time to scan, and the discharge time of the touch electrodes is compressed, resulting in low touch performance. Based on this, an embodiment of the present application provides a touch panel, including: M×N touch electrodes 10 arranged in an array, M×N touch signal lines corresponding to the M×N touch electrodes 10, M×N first switch control circuits 11 corresponding to the M×N touch electrodes 10, and a touch chip 12; wherein, the M rows of touch electrodes 10 are divided into multiple groups by row; each touch electrode 10 is connected to the corresponding first switch control circuit 11 through the corresponding touch signal line; the first switch control circuit 11 connected to the touch electrodes 10 belonging to the same group in each column of touch electrodes 10 is connected to the same scan drive signal line, and each scan drive signal line is connected to the touch chip 12. In this way, multiple rows of touch electrodes 10 in multiple groups can be scanned in parallel, which reduces the scanning time of the touch electrodes 10 on the touch panel and improves the touch performance of the touch panel.

[0042] The touch panel provided in the embodiment of the present application can be applied to any device that provides a touch interaction function. For example, the touch panel provided in the embodiment of the present application can be applied to a terminal, which can be, but is not limited to, various personal computers, laptops, smart phones, tablet computers, IoT devices, and portable wearable devices. IoT devices can be smart speakers, smart TVs, smart air conditioners, smart car devices, projection devices, etc. Portable wearable devices can be smart watches, smart bracelets, head-mounted devices, etc. Head-mounted devices can be virtual reality (VR) devices, augmented reality (AR) devices, smart glasses, etc.

[0043] In an exemplary embodiment, a touch panel is provided, comprising: M×N touch electrodes 10 arranged in an array, M×N touch signal lines corresponding to the M×N touch electrodes 10, M×N first switch control circuits 11 corresponding to the M×N touch electrodes 10, and a touch chip 12; wherein the M rows of touch electrodes 10 are divided into multiple groups by row; each touch electrode 10 is connected to the corresponding first switch control circuit 11 through the corresponding touch signal line; the first switch control circuit 11 connected to the touch electrodes 10 belonging to the same group in each column of touch electrodes 10 is connected to the same scan drive signal line, and each scan drive signal line is connected to the touch chip 12.

[0044] Optionally, the touch panel provided in the embodiment of the present application may be a self-capacitive touch panel or a mutual-capacitive touch panel. Figure 1As shown, the touch panel provided in the embodiment of the present application includes M×N touch electrodes 10 arranged in an array. The specific values ​​of M and N can be set according to the application scenario of the touch panel. The embodiment of the present application does not limit the values ​​of M and N.

[0045] Optionally, the touch panel provided in the embodiment of the present application can be manufactured by using Visionoxintelligent Pixelization (ViP) technology.

[0046] The touch panel provided in the embodiment of the present application includes M×N touch signal lines corresponding to the M×N touch electrodes 10 , respectively. The touch signal lines are used to transmit signals flowing into the corresponding touch electrodes 10 and signals flowing out of the corresponding touch electrodes 10 .

[0047] Among them, see Figure 2 As shown, the touch panel provided in the embodiment of the present application further includes M×N first switch control circuits 11 corresponding to the M×N touch electrodes 10 respectively, and each touch electrode 10 is connected to the corresponding first switch control circuit 11 through a corresponding touch signal line. Figure 2 Take M as 12 and N as 18 as an example. Figure 2 Only the first column is shown, and the settings of the remaining columns are the same as the first column.

[0048] The M rows of touch electrodes 10 are divided into a plurality of groups by row. Exemplarily, the M rows of touch electrodes 10 may be divided into W groups by row, and the number of rows of touch electrodes 10 in each of the W groups may be the same, or the number of rows of touch electrodes 10 in some of the W groups may be the same, or the number of rows of touch electrodes 10 in each of the W groups may be different, which is not limited in the embodiment of the present application.

[0049] For example, see Figure 2 As shown, the touch panel includes 12×18 touch electrodes 10. The 1st to 6th rows of touch electrodes 10 in the 12 rows of touch electrodes 10 can be divided into a group, which is connected to a scan drive signal line, and the 7th to 12th rows of touch electrodes 10 can be divided into a group, which is connected to another scan drive signal line, so that two groups are obtained in total. This is just an example, and other grouping methods can also be used. This example does not constitute a limitation on the embodiments of the present application.

[0050] Among them, each touch electrode 10 is connected to the corresponding first switch control circuit 11 through the corresponding touch signal line; for each column of touch electrodes 10, the first switch control circuit 11 connected to the touch electrodes 10 belonging to the same group in the column of touch electrodes 10 is connected to the same scan drive signal line, and all scan drive signal lines are connected to the touch chip 12, and the touch chip 12 outputs a scan drive signal through each scan drive signal line.

[0051] In combination with the above example, the touch panel includes 12×18 touch electrodes 10, and the touch electrodes 10 in the 12 rows of touch electrodes 10 can be divided into a group in the 1st to 6th rows, which is called group A for convenience of explanation; the touch electrodes 10 in the 7th to 12th rows are divided into a group in the 12 rows of touch electrodes 10, which is called group B for convenience of explanation, and a total of two groups are obtained. Each touch electrode 10 is connected to the corresponding first switch control circuit 11 through the corresponding touch signal line; for each column of touch electrodes 10 in the 18 columns of touch electrodes 10, the first switch control circuit 11 connected to all touch electrodes 10 belonging to group A in the column of touch electrodes 10 is connected to the same scan drive signal line. For the convenience of explanation, the scan drive signal line is called drive signal line A; the first switch control circuit 11 connected to all touch electrodes 10 belonging to group B in the column of touch electrodes 10 is connected to the same scan drive signal line. For the convenience of explanation, the scan drive signal line is called drive signal line B. The drive signal line A and the drive signal line B are both connected to the touch chip 12, and the touch chip 12 outputs a scan drive signal through the drive signal line B and the drive signal line A.

[0052] Among them, M×N touch electrodes 10, M×N touch signal lines and M×N first switch control circuits 11 have a one-to-one correspondence. Each touch electrode 10 is connected to the corresponding first switch control circuit 11 through the corresponding touch signal line. The first switch control circuit 11 is used to control the connection or disconnection between the corresponding touch signal line and the corresponding scan drive signal line. When the first switch control circuit 11 is in the on state, the scan drive signal output by the touch chip 12 through the corresponding scan drive signal line can be transmitted to the corresponding touch signal line through the first switch control circuit 11, and then transmitted to the corresponding touch electrode 10 through the corresponding touch signal line; when the first switch control circuit 11 is in the off state, the scan drive signal line output by the touch chip 12 through the corresponding scan drive signal line cannot be transmitted to the corresponding touch electrode 10 through the first switch control circuit 11.

[0053] Among them, since the M rows of touch electrodes 10 are divided into multiple groups by row, the first switch control circuits 11 corresponding to the multiple rows of touch electrodes 10 belonging to the multiple groups can be controlled to be turned on at the same time, so that the multiple rows of touch electrodes 10 belonging to the multiple groups can be scanned simultaneously, thereby improving the scanning speed of the touch electrodes 10 on the touch panel.

[0054] In one possible implementation, after entering the touch stage, for each column of touch electrodes 10, the first switch control circuit 11 corresponding to the touch electrode 10 in the i-th row in each group can be controlled to be turned on; after reaching a preset time, the first switch control circuit 11 corresponding to the touch electrode 10 in the i-th row in each group is controlled to be disconnected, and the first switch control circuit 11 corresponding to the touch electrode 10 in the i+1-th row in each group is controlled to be turned on, (n-1)≥i≥1, n is the number of rows of touch electrodes 10 in each group, so that multiple groups can be scanned in parallel, which greatly reduces the scanning time of the touch electrodes 10.

[0055] In combination with the above example, the touch panel includes 12×18 touch electrodes 10, and the touch electrodes 10 in the 12 rows of touch electrodes 10 in the 1st to 6th rows can be divided into a group, called group A; and the touch electrodes 10 in the 7th to 12th rows can be divided into a group, called group B. The first switch control circuit 11 connected to all the touch electrodes 10 belonging to group A in each column of touch electrodes 10 is connected to the drive signal line A; the first switch control circuit 11 connected to all the touch electrodes 10 belonging to group B in each column of touch electrodes 10 is connected to the drive signal line B. After entering the touch control stage, for each column of touch electrodes 10, the first switch control circuit 11 corresponding to the touch electrodes 10 in the first row of group A and group B can be controlled to be turned on; after reaching the preset time, the first switch control circuit 11 corresponding to the touch electrodes 10 in the first row of group A and group B is controlled to be disconnected, and the first switch control circuit 11 corresponding to the touch electrodes 10 in the second row of group A and group B is controlled to be turned on; after reaching the preset time, the first switch control circuit 11 corresponding to the touch electrodes 10 in the second row of group A and group B is controlled to be disconnected, and the first switch control circuit 11 corresponding to the touch electrodes 10 in the third row of group A and group B is controlled to be turned on; ...; and so on, until the first switch control circuit 11 corresponding to the touch electrodes 10 in the sixth row of group A and group B is controlled to be turned on and reaches the preset time. In this way, group A and group B can be scanned in parallel, which greatly reduces the scanning time of the touch electrodes 10.

[0056] In the above embodiment, the touch panel includes: M×N touch electrodes 10 arranged in an array, M×N touch signal lines corresponding to the M×N touch electrodes 10, M×N first switch control circuits 11 corresponding to the M×N touch electrodes 10, and a touch chip 12; wherein, the M rows of touch electrodes 10 are divided into multiple groups by row; each touch electrode 10 is connected to the corresponding first switch control circuit 11 through the corresponding touch signal line; the first switch control circuit 11 connected to the touch electrodes 10 belonging to the same group in each column of touch electrodes 10 is connected to the same scan drive signal line, and each scan drive signal line is connected to the touch chip 12. Since the M rows of touch electrodes 10 are divided into multiple groups by row, the first switch control circuits 11 corresponding to the multiple rows of touch electrodes 10 belonging to the multiple groups can be controlled to be turned on at the same time, so that the multiple rows of touch electrodes 10 can be scanned simultaneously, thereby improving the scanning speed of the touch electrodes 10 on the touch panel, reducing the scanning time, and improving the touch performance.

[0057] In some embodiments, the number of rows of touch electrodes 10 in each group is the same.

[0058] The M rows of touch electrodes 10 are equally divided into a plurality of groups by row. Exemplarily, the M rows of touch electrodes 10 can be equally divided into W groups by row, and the number of rows of touch electrodes 10 in each of the W groups is the same.

[0059] As the example above, the touch panel includes 12×18 touch electrodes 10 , and the touch electrodes 10 in the 12 rows of touch electrodes 10 can be divided into one group, and the touch electrodes 10 in the 7th to 12th rows can be divided into one group, so as to obtain two groups.

[0060] Among them, the first switch control circuits 11 corresponding to the multiple rows of touch electrodes 10 belonging to multiple groups can be controlled to be turned on at the same time, so that the multiple rows of touch electrodes 10 belonging to the multiple groups can be scanned simultaneously. Since the M rows of touch electrodes 10 are divided into multiple groups by rows, the number of rows of touch electrodes 10 in each group is the same, and the same switch control method can be set to scan the multiple rows of touch electrodes 10 in each group. This setting method makes the control of parallel scanning simpler.

[0061] Combined with the above example, after entering the touch stage, for each column of touch electrodes 10, the first switch control circuit 11 corresponding to the touch electrodes 10 in the first row in group A and group B can be controlled to be turned on; after reaching the preset time length, the first switch control circuit 11 corresponding to the touch electrodes 10 in the first row in group A and group B is controlled to be disconnected, and the first switch control circuit 11 corresponding to the touch electrodes 10 in the second row in group A and group B is controlled to be turned on; after reaching the preset time length, the first switch control circuit 11 corresponding to the touch electrodes 10 in the second row in group A and group B is controlled to be disconnected, and the first switch control circuit 11 corresponding to the touch electrodes 10 in the third row in group A and group B is controlled to be turned on; ...; and so on, until the first switch control circuit 11 corresponding to the touch electrodes 10 in the sixth row in group A and group B is controlled to be turned on and reaches the preset time length. Since both group A and group B include 6 rows of touch electrodes 10, all touch electrodes 10 can be scanned in 6 preset time periods, and the switch control methods used by group A and group B are the same, making the control of parallel scanning simpler.

[0062] In the above embodiment, the number of rows of touch electrodes 10 in each group is the same, and the same switch control mode can be set to scan multiple rows of touch electrodes 10 in each group, making the control of parallel scanning simpler.

[0063] In some embodiments, the multiple rows of touch electrodes 10 in each group are equally divided into L subgroups; the first switch control circuit 11 connected to the touch electrodes 10 belonging to the same subgroup in each column of touch electrodes 10 is connected to the same second switch control circuit 13; the second switch control circuit 13 connected to the L subgroups in the same group is connected to the same scan drive signal line.

[0064] The M rows of touch electrodes 10 are divided into a plurality of groups by row. The multiple rows of touch electrodes 10 in each group are equally divided into L subgroups. Exemplarily, the M rows of touch electrodes 10 can be divided into W groups by row, and the number of rows of touch electrodes 10 in each of the W groups is the same. The multiple rows of touch electrodes 10 in each of the W groups are equally divided into L subgroups.

[0065] For example, see Figure 3As shown, the touch panel includes 12×18 touch electrodes 10. The 1st to 6th rows of touch electrodes 10 in the 12 rows of touch electrodes 10 can be divided into a group, which is called group A for convenience of description; the 7th to 12th rows of touch electrodes 10 can be divided into a group, which is called group B for convenience of description, and a total of two groups are obtained. The 1st to 3rd rows of touch electrodes 10 in group A are divided into a subgroup, called subgroup A1; the 4th to 6th rows of touch electrodes 10 in group A are divided into a subgroup, called subgroup A2, so that group A is divided into subgroup A1 and subgroup A2. Similarly, the 1st to 3rd rows of touch electrodes 10 in group B are divided into a subgroup, called subgroup B1; the 4th to 6th rows of touch electrodes 10 in group B are divided into a subgroup, called subgroup B2, so that group B is divided into subgroup B1 and subgroup B2.

[0066] Among them, the first switch control circuit 11 connected to the touch electrodes 10 belonging to the same subgroup in each column of touch electrodes 10 is connected to the same second switch control circuit 13. The second switch control circuits 13 connected to the L subgroups in the same group are connected to the same scan drive signal line. The circuit design inside the first switch control circuit 11 and the circuit design inside the second switch control circuit 13 can be the same or different, and the embodiment of the present application does not limit this.

[0067] In combination with the above example, the 1st to 3rd rows of touch electrodes 10 in group A are divided into a subgroup, called subgroup A1; the 4th to 6th rows of touch electrodes 10 in group A are divided into a subgroup, called subgroup A2, so that group A is divided into subgroup A1 and subgroup A2. Similarly, the 1st to 3rd rows of touch electrodes 10 in group B are divided into a subgroup, called subgroup B1; the 4th to 6th rows of touch electrodes 10 in group B are divided into a subgroup, called subgroup B2, so that group B is divided into subgroup B1 and subgroup B2. For each column of touch electrodes 10 in the 18 columns of touch electrodes 10, the first switch control circuits 11 connected to the touch electrodes 10 belonging to the subgroup A1 in the column of touch electrodes 10 are connected to the same second switch control circuit 13, which is called the second switch control circuit 131; the first switch control circuits 11 connected to the touch electrodes 10 belonging to the subgroup A2 in the column of touch electrodes 10 are connected to the same second switch control circuit 13, which is called the second switch control circuit 132; the first switch control circuits 11 connected to the touch electrodes 10 belonging to the subgroup B1 in the column of touch electrodes 10 are connected to the same second switch control circuit 13, which is called the second switch control circuit 133; the first switch control circuits 11 connected to the touch electrodes 10 belonging to the subgroup B2 in the column of touch electrodes 10 are connected to the same second switch control circuit 13, which is called the second switch control circuit 134. The second switch control circuits 131 and the second switch control circuits 132 are connected to the drive signal line A, and the second switch control circuits 133 and the second switch control circuits 134 are connected to the drive signal line B.

[0068] The second switch control circuit 13 is used to control the connection or disconnection between each first switch control circuit 11 connected thereto and the corresponding scan drive signal line. When the second switch control circuit 13 and a first switch control circuit 11 connected thereto are both in the on state, the scan drive signal output by the touch chip 12 through the corresponding scan drive signal line can be transmitted to the corresponding touch electrode 10 through the second switch control circuit 13 and the first switch control circuit 11; when the second switch control circuit 13 is in the off state, or a first switch control circuit 11 connected thereto is in the off state, the scan drive signal output by the touch chip 12 through the corresponding scan drive signal line cannot be transmitted to the corresponding touch electrode 10.

[0069] In a possible implementation, after entering the touch stage, for each column of touch electrodes 10, the first switch control circuit 11 corresponding to the touch electrodes 10 in the i-th row in each group can be controlled to be turned on, and at the same time, the second switch control circuits 13 corresponding to the subgroups to which the touch electrodes 10 in the i-th row in each group belong can be controlled to be turned on; after reaching a preset time, the first switch control circuit 11 corresponding to the touch electrodes 10 in the i-th row in each group is controlled to be cut off; and the first switch control circuit 11 corresponding to the touch electrodes 10 in the i+1th row in each group is controlled to be turned on, and at the same time, the second switch control circuits 13 corresponding to the subgroups to which the touch electrodes 10 in the i-th row in each group belong can be controlled to be turned on. The second switch control circuits 13 corresponding to each subgroup to which the touch electrodes 10 in the i+1th row belong are turned on; wherein, within a group, the touch electrodes 10 in the i-th row and the touch electrodes 10 in the i+1th row may belong to the same subgroup. In this case, the second switch control circuits 13 corresponding to the two are the same. When the first switch control circuits 11 corresponding to the two touch electrodes are controlled to be turned on, the same second switch control circuit 13 is controlled to be turned on. For the second switch control circuit 13, the isolation is controlled only after all the touch electrodes in the subgroup corresponding to the second switch control circuit 13 are scanned. In the case that the touch electrodes 10 in the i-th row and the touch electrodes 10 in the i+1th row do not belong to the same subgroup, when the first switch control circuit 11 corresponding to the touch electrodes in the i-th row is controlled to be disconnected, the second switch control circuit 13 corresponding to the subgroup to which it belongs needs to be controlled to be disconnected.

[0070] Wherein, (n-1)≥i≥1, n is the number of rows of the touch electrodes 10 in each group, so that multiple groups can be scanned in parallel, greatly reducing the scanning time of the touch electrodes 10.

[0071] In combination with the above example, after entering the touch stage, for each column of touch electrodes 10, the second switch control circuit 131 corresponding to the control subgroup A1 is turned on, and the second switch control circuit 133 corresponding to the control subgroup B1 is turned on. Then, the first switch control circuit 11 corresponding to the touch electrodes 10 in the first row in the control group A and group B can be turned on; after reaching the preset time, the first switch control circuit 11 corresponding to the touch electrodes 10 in the first row in the control group A and group B is cut off; the touch electrodes 10 in the second row in the control group A and group B are turned off. 0 is turned on; after reaching the preset time length, the first switch control circuit 11 corresponding to the touch electrodes 10 in the second row in the control group A and group B is disconnected; the first switch control circuit 11 corresponding to the touch electrodes 10 in the third row in the control group A and group B is turned on, and after reaching the preset time length, the second switch control circuit 131 corresponding to the control subgroup A1 is disconnected, and the second switch control circuit 133 corresponding to the control subgroup B1 is disconnected, thereby, all the touch electrodes 10 in the subgroup A1 and subgroup B1 are scanned. The control principles of subgroup A2 and subgroup B2 are similar and will not be repeated here. The parallel scanning of group A and group B is realized, which greatly reduces the scanning time of the touch electrodes 10.

[0072] In the above embodiment, the multiple rows of touch electrodes 10 in each group are equally divided into L subgroups; the first switch control circuit 11 connected to the touch electrodes 10 belonging to the same subgroup in each column of touch electrodes 10 is connected to the same second switch control circuit 13; the second switch control circuit 13 connected to the L subgroups in the same group is connected to the same scan drive signal line. By controlling the first switch control circuit 11 and the second switch control circuit 13, parallel scanning of multiple rows of touch electrodes 10 belonging to multiple groups is achieved. The second switch control circuit 13 can be used as a primary switch control circuit, and the first switch control circuit 11 can be used as a secondary switch control circuit. This hierarchical switch setting method makes the scanning control more accurate.

[0073] In some embodiments, see Figure 4 As shown, each first switch control circuit 11 includes a first driving voltage switch tube 110 and a companion voltage switch tube 111; the source of the first driving voltage switch tube 110 is connected to the corresponding second switch control circuit 13, and the drain of the first driving voltage switch tube 110 is connected to the corresponding touch electrode 10; the source of the companion voltage switch tube 111 is connected to the circuit for outputting the companion voltage, and the drain of the companion voltage switch tube 111 is connected to the corresponding touch electrode 10.

[0074] The first driving voltage switch tube 110 and the accompanying voltage switch tube 111 can both be field effect transistors (MOSFET, MOS for short). Exemplarily, the first driving voltage switch tube 110 and the accompanying voltage switch tube 111 can be P-channel MOS tubes or N-channel MOS tubes, which is not limited in the embodiments of the present application.

[0075] For example, see Figure 5 As shown, a schematic diagram of a first switch control circuit 11 is shown, the first switch control circuit 11 includes a first driving voltage switch tube T1.2.2 and a companion voltage switch tube T1.2.1, the gate of T1.2.2 is connected to a voltage control module, the voltage of the gate of T1.2.2 is represented by S1.2.2, the gate of T1.2.1 is also connected to the voltage control module, the voltage of the gate of T1.2.1 is represented by S1.2.1, the source of T1.2.2 is connected to the corresponding second switch control circuit 13, and the drain of T1.2.2 is connected to the corresponding touch electrode 10. The source of T1.2.1 is connected to a circuit for outputting a companion voltage, and the drain of T1.2.1 is connected to the corresponding touch electrode 10.

[0076] When it is necessary to control the first switch control circuit 11 to be turned on, S1.2.2 can be set low and S1.2.1 can be set high through the voltage control module. At this time, T1.2.2 is turned on and T1.2.1 is cut off. The scan drive signal output by the touch chip 12 through the corresponding scan drive signal line can be transmitted to the corresponding touch signal line through T1.2.2, and then transmitted to the corresponding touch electrode 10 through the corresponding touch signal line; when it is necessary to control the first switch control circuit 11 to be cut off, S1.2.2 can be set high and S1.2.1 can be set low through the voltage control module. At this time, T1.2.2 is cut off and T1.2.1 is turned on. The scan drive signal line output by the touch chip 12 through the corresponding scan drive signal line cannot be transmitted to the corresponding touch electrode 10 through T1.2.2, and the accompanying voltage is provided to the corresponding touch electrode 10. The accompanying voltage is generally smaller than the voltage of the scan drive signal.

[0077] In the above embodiment, the internal design of the first switch control circuit 11 is provided, and each first switch control circuit 11 includes a first driving voltage switch tube 110 and a companion voltage switch tube 111; the source of the first driving voltage switch tube 110 is connected to the corresponding second switch control circuit 13, and the drain of the first driving voltage switch tube 110 is connected to the corresponding touch electrode 10; the source of the companion voltage switch tube 111 is connected to the circuit for outputting the companion voltage, and the drain of the companion voltage switch tube 111 is connected to the corresponding touch electrode 10. By controlling the first driving voltage switch tube 110, parallel scanning of multiple rows of touch electrodes 10 can be achieved, which reduces the scanning time of the touch electrodes 10.

[0078] In some embodiments, see Figure 6 As shown, each second switch control circuit 13 includes a second drive voltage switch tube 130; the source of the second drive voltage switch tube 130 is connected to the corresponding scan drive signal line, and the drain of the second drive voltage switch tube 130 is connected to the corresponding first switch control circuit 11.

[0079] Optionally, each second switch control circuit 13 may also include a companion voltage switch tube 131, the source of the companion voltage switch tube 131 is connected to the circuit for outputting the companion voltage, and the drain of the companion voltage switch tube 131 is connected to the corresponding first switch control circuit 11.

[0080] Similar to the first switch control circuit 11, the second drive voltage switch tube 130 and the accompanying voltage switch tube 131 in the second switch control circuit 13 can both be field effect transistors (MOSFET, MOS for short). Exemplarily, the second drive voltage switch tube 130 and the accompanying voltage switch tube 131 can be P-channel MOS tubes or N-channel MOS tubes, which is not limited in the embodiments of the present application.

[0081] For example, see Figure 7 As shown, a schematic diagram of a second switch control circuit 13 is shown, and the second switch control circuit 13 includes a second driving voltage switch tube T1.2 and a companion voltage switch tube T1.1. The gate of T1.2 is connected to a voltage control module, the voltage of the gate of T1.2 is represented by S1.2, the gate of T1.1 is also connected to the voltage control module, the voltage of the gate of T1.1 is represented by S1.1, the source of T1.2 is connected to the corresponding scanning drive signal line, and the drain of T1.2 is connected to the corresponding first switch control circuits 11. The source of T1.1 is connected to a circuit for outputting a companion voltage, and the drain of T1.1 is connected to the corresponding first switch control circuits 11.

[0082] When it is necessary to control the second switch control circuit 13 to be turned on, S1.2 can be set low and S1.1 can be set high through the voltage control module. At this time, T1.2 is turned on and T1.1 is cut off. The scan drive signal output by the touch chip 12 through the corresponding scan drive signal line can be transmitted through T1.2; when it is necessary to control the second switch control circuit 13 to be cut off, S1.2 can be set high and S1.1 can be set high through the voltage control module. At this time, T1.2 is cut off and T1.1 is cut off. The scan drive signal line output by the touch chip 12 through the corresponding scan drive signal line cannot be transmitted through T1.2.

[0083] In the above embodiment, the internal design of the second switch control circuit 13 is provided, and each second switch control circuit 13 includes a second drive voltage switch tube 130; the source of the second drive voltage switch tube 130 is connected to the corresponding scan drive signal line, and the drain of the second drive voltage switch tube 130 is connected to the corresponding first switch control circuit 11. By controlling the second drive voltage switch tube 130, parallel scanning of multiple rows of touch electrodes 10 can be achieved, reducing the scanning time of the touch electrodes 10.

[0084] In some embodiments, see Figure 8 As shown, Figure 8 It is a top view of a touch panel, which further includes: a substrate (not shown), a light-emitting layer 14 and an isolation structure 15; the light-emitting layer 14 and the isolation structure 15 are both formed on the substrate, the isolation structure 15 surrounds the light-emitting layer 14, and M×N grooves 16 are opened in the isolation structure 15, and the M×N touch electrodes 10 are respectively arranged in the M×N grooves 16. Figure 8 M×N is represented by 3×3.

[0085] The light-emitting layer 14 is a film layer that can emit light. The light-emitting layer 14 includes a plurality of pixel units, and each pixel unit includes three sub-pixels of R, G, and B.

[0086] Optionally, the isolation structure 15 may include isolation columns and isolation layers stacked on the substrate.

[0087] Optionally, M×N grooves 16 are opened in the isolation structure 15, and M×N touch electrodes 10 are respectively arranged in the M×N grooves 16. There is a certain distance between the touch electrode 10 and the isolation structure 15, and an insulating layer is filled between the touch electrode 10 and the isolation structure 15 to insulate the touch electrode 10 and the isolation structure 15.

[0088] In the above embodiment, the touch electrode 10 is arranged in the groove 16 opened by the isolation structure 15, and the isolation structure 15 is used to separate the adjacent light-emitting layers 14. The introduction of the isolation structure 15 makes it unnecessary to consider the alignment accuracy during evaporation in the process flow, and the gap of the light-emitting layer 14 can be designed to be smaller, thereby increasing the pixel opening ratio.

[0089] In some embodiments, see Fig. 9 As shown, Fig. 9It is a cross-sectional view of a touch panel, which further includes: a flat layer 17, wherein the flat layer 17 is formed on the substrate 18, the light-emitting layer 14 and the isolation structure 15 are both formed on the flat layer 17, the flat layer 17 is provided with first via holes corresponding to the M×N grooves 16, respectively, and the M×N touch electrodes 10 are connected to the corresponding touch signal lines through the corresponding first via holes.

[0090] Among them, the flat layer 17 is covered with a metal layer 19 corresponding to the positions of the M×N first via holes, and the M×N touch electrodes 10 are respectively connected to the corresponding metal layer 19 through the corresponding first via holes. Each metal layer 19 is connected to a corresponding metal lead as the lead of the corresponding touch electrode 10. The touch signal line corresponding to the touch electrode 10 can be connected to the touch electrode 10 through the lead of the touch electrode 10.

[0091] Optionally, the size of the touch electrode 10 matches the size of the first via hole, the touch electrode 10 is at least partially placed in the first via hole, and the touch electrode 10 is placed at the end of the first via hole and contacts the corresponding metal layer 19 .

[0092] In the above embodiment, the light-emitting layer 14 and the isolation structure 15 are both formed on the flat layer 17, and the flat layer 17 is provided with first via holes corresponding to the M×N grooves 16 respectively. The touch electrode 10 is connected to the corresponding touch signal line through the first via hole of the flat layer 17, so as to avoid crosstalk with other conductive structures.

[0093] In some embodiments, the touch panel also includes: a pixel defining layer 20, the pixel defining layer 20 is used to define the position of the light-emitting layer 14, the pixel defining layer 20 is formed on the flat layer 17, the isolation structure 15 is formed on the pixel defining layer 20, the pixel defining layer 20 is provided with second via holes corresponding to the M×N grooves 16 respectively, and the M×N touch electrodes 10 arranged in the M×N grooves 16 are connected to the corresponding touch signal lines through the corresponding first via holes and the second via holes respectively.

[0094] The orthographic projection of the second via hole on the substrate 18 and the orthographic projection of the first via hole on the substrate 18 at least partially overlap. The touch electrode 10 is connected to the corresponding metal layer 19 through the first via hole and the second via hole, and each metal layer 19 is connected to a corresponding metal lead as the lead of the corresponding touch electrode 10. The touch signal line corresponding to the touch electrode 10 can be connected to the touch electrode 10 through the lead of the touch electrode 10.

[0095] Optionally, the size of the touch electrode 10 matches the size of the first via hole and the second via hole, and the touch electrode 10 is at least partially placed in the corresponding first via hole and the second via hole. The touch electrode 10 is placed at the end of the first via hole and contacts the corresponding metal layer 19 .

[0096] In the above embodiment, the touch panel further includes a pixel defining layer 20, which is used to define the position of the light emitting layer 14, and the pixel defining layer 20 is provided with second via holes corresponding to the M×N grooves 16, respectively, and the touch electrode 10 is connected to the corresponding touch signal line through the corresponding first via hole and the second via hole, so as to avoid crosstalk with other conductive structures.

[0097] In some embodiments, the touch electrode 10 and the isolation structure 15 are made of the same material, and the touch electrode 10 is disposed in a space defined by a corresponding first via hole, a corresponding second via hole, and a corresponding groove 16 .

[0098] Optionally, the isolation structure 15 includes an isolation column and a partition layer. The touch electrode 10 may also include two components, such as an electrode structure and a partition structure. The material and shape of the electrode structure may be the same as those of the isolation column, and the material and shape of the partition structure may be the same as those of the partition layer.

[0099] The size of the electrode structure matches the size of the first via hole and the second via hole. The electrode structure is at least partially placed in the corresponding first via hole and the second via hole, and the remaining portion is exposed in the corresponding groove 16 .

[0100] In the above embodiment, the touch electrode 10 and the isolation structure 15 are made of the same material, and the touch electrode 10 is disposed in the space defined by the corresponding first via hole, the corresponding second via hole and the corresponding groove 16. The introduction of the isolation structure 15 increases the pixel aperture ratio of the touch panel.

[0101] In some embodiments, the orthographic projection of each touch electrode 10 on the substrate is located within the orthographic projection of the corresponding groove 16 on the substrate.

[0102] As described above, the isolation structure 15 is provided with M×N grooves 16, and the M×N touch electrodes 10 are respectively arranged in the M×N grooves 16. The touch electrode 10 can be arranged to occupy only a part of the groove 16, that is, a certain distance is spaced between the touch electrode 10 and the isolation structure 15. The electrode structure included in the touch electrode 10 is usually a trapezoidal shape with a narrow top and a wide bottom. A certain space is left between the touch electrode 10 and the isolation structure 15, and the first via hole, the second via hole, the corresponding metal layer 19, etc. can be confined within the range of the groove 16, further avoiding mutual interference with other structures.

[0103] In some embodiments, a touch panel is provided. Fig.10 As shown, it includes: a plurality of touch electrodes 10 arranged at intervals, a plurality of touch signal lines corresponding to the plurality of touch electrodes 10, a plurality of first switch control circuits corresponding to the plurality of touch electrodes 10, and a touch chip; wherein the plurality of touch electrodes 10 are divided into a plurality of groups according to regions, and each touch electrode 10 is connected to a corresponding first switch control circuit through a corresponding touch signal line; the first switch control circuits connected to the touch electrodes 10 belonging to the same group are respectively connected to the same scan drive signal line, and each scan drive signal line is connected to the touch chip. Fig.10 Take the four groups indicated by dashed boxes as an example.

[0104] Among them, the number of touch electrodes 10 in the touch panel provided in the embodiment of the present application can be set according to the application scenario of the touch panel, and the embodiment of the present application does not limit this.

[0105] The touch signal line is used to transmit the signal flowing into the corresponding touch electrode 10 and the signal flowing out of the corresponding touch electrode 10. The touch panel provided in the embodiment of the present application also includes a plurality of first switch control circuits corresponding to the plurality of touch electrodes 10, and each touch electrode 10 is connected to the corresponding first switch control circuit via the corresponding touch signal line.

[0106] Among them, multiple touch electrodes 10 are divided into multiple groups according to regions. For example, the horizontal center line and the vertical center line of the touch panel can be determined. The horizontal center line and the vertical center line divide the touch panel into four regions: upper left, upper right, lower left, and lower right. The touch electrodes 10 in each region can constitute a group.

[0107] Among them, the first switch control circuits connected to the touch electrodes 10 belonging to the same group are respectively connected to the same scan drive signal line. Combined with the above example, the first switch control circuits connected to the touch electrodes 10 in the upper left area are respectively connected to the same scan drive signal line, the first switch control circuits connected to the touch electrodes 10 in the upper right area are respectively connected to the same scan drive signal line, the first switch control circuits connected to the touch electrodes 10 in the lower left area are respectively connected to the same scan drive signal line, and the first switch control circuits connected to the touch electrodes 10 in the lower right area are respectively connected to the same scan drive signal line; four scan drive signal lines are connected to the touch chip.

[0108] In the above embodiment, the touch panel includes: a plurality of touch electrodes 10 arranged at intervals, a plurality of touch signal lines corresponding to the plurality of touch electrodes 10, a plurality of first switch control circuits corresponding to the plurality of touch electrodes 10, and a touch chip; wherein the plurality of touch electrodes 10 are divided into a plurality of groups according to regions, and each touch electrode 10 is connected to a corresponding first switch control circuit through a corresponding touch signal line; the first switch control circuits connected to the touch electrodes 10 belonging to the same group are connected to the same scan drive signal line, and each scan drive signal line is connected to the touch chip. Since the plurality of touch electrodes 10 are divided into a plurality of groups according to regions, the first switch control circuits corresponding to the plurality of touch electrodes 10 belonging to the plurality of groups can be controlled to be turned on at the same time, so that multiple groups can be scanned simultaneously, thereby improving the scanning speed of the touch electrodes 10 on the touch panel, reducing the scanning time, and improving the touch performance.

[0109] In some embodiments, the number of rows and columns of the touch electrodes 10 in each group is the same.

[0110] The plurality of touch electrodes 10 are equally divided into a plurality of groups according to regions, and the number of rows and columns of the touch electrodes 10 in each group is the same.

[0111] For example, see Fig.10 As shown, the touch panel includes 12×18 touch electrodes 10, and the touch panel can be divided into four areas: upper left, upper right, lower left, and lower right. The upper left area includes the 1st to 6th rows and 1st to 9th columns of touch electrodes 10 as a group; the upper right area includes the 1st to 6th rows and 10th to 18th columns of touch electrodes 10 as a group; the lower left area includes the 7th to 12th rows and 1st to 9th columns of touch electrodes 10 as a group; the lower right area includes the 7th to 12th rows and 10th to 18th columns of touch electrodes 10 as a group.

[0112] Among them, the first switch control circuits 11 corresponding to the multiple touch electrodes 10 belonging to the multiple groups can be controlled to be turned on at the same time, so that the multiple touch electrodes 10 belonging to the multiple groups can be scanned simultaneously. Since the number of rows and columns of the touch electrodes 10 in each group is the same, that is, the number of touch electrodes 10 is the same, each group can be set with the same switch control method, which makes the control of parallel scanning simpler.

[0113] In the above embodiment, the number of rows and columns of the touch electrodes 10 in each group is the same. Thus, the number of touch electrodes 10 in each group is the same, and the same switch control mode can be set for each group, making the control of parallel scanning simpler.

[0114] In some embodiments, a display device is also provided, comprising the touch panel provided in the aforementioned embodiment.

[0115] In an exemplary embodiment, Fig.11 As shown, a touch scanning method is provided, which is applied to the touch panel provided by any of the above embodiments, and the touch scanning method includes:

[0116] Step 802 , after entering the touch control stage, for each column of touch control electrodes 10 , control the first switch control circuit 11 corresponding to the touch control electrode 10 in the i-th row in each group to be turned on.

[0117] Step 804, after reaching the preset time length, control the first switch control circuit 11 corresponding to the touch electrodes 10 in the i-th row in each group to be disconnected, and control the first switch control circuit 11 corresponding to the touch electrodes 10 in the i+1-th row in each group to be turned on, (n-1)≥i≥1, n is the number of rows of touch electrodes 10 in each group.

[0118] When the touch panel refreshes the screen at a certain frequency, each image frame corresponds to a display phase and a touch phase. After entering the touch phase, the touch electrode 10 can be scanned in the manner of the embodiment of the present application.

[0119] Specifically, after entering the touch control stage, for each column of touch electrodes 10, the first switch control circuit 11 corresponding to the touch electrodes 10 in the first row in each group can be controlled to be turned on, and after reaching a preset time, the first switch control circuit 11 corresponding to the touch electrodes 10 in the first row in each group is controlled to be cut off, and the first switch control circuit 11 corresponding to the touch electrodes 10 in the second row in each group is controlled to be turned on, and so on, until the last row of touch electrodes 10 in each group is scanned. The parallel scanning of multiple groups is realized, which greatly reduces the scanning time of the touch electrodes 10.

[0120] In the above embodiment, based on the touch panel provided in the above embodiment, after entering the touch stage, for each column of touch electrodes 10, the first switch control circuit 11 corresponding to the touch electrodes 10 in the i-th row in each group is controlled to be turned on. After reaching the preset time, the first switch control circuit 11 corresponding to the touch electrodes 10 in the i-th row in each group is controlled to be cut off, and the first switch control circuit 11 corresponding to the touch electrodes 10 in the i+1-th row in each group is controlled to be turned on until the last row of touch electrodes 10 in each group is scanned. This multi-row parallel scanning method greatly reduces the scanning time of the touch electrodes 10.

[0121] In some embodiments, the step of controlling the first switch control circuit 11 corresponding to the touch electrodes 10 in the i-th row in each group to be turned on; and after reaching a preset time length, controlling the first switch control circuit 11 corresponding to the touch electrodes 10 in the i-th row in each group to be turned off, includes: controlling the first drive voltage switch tube 110 in the first switch control circuit 11 corresponding to the touch electrodes 10 in the i-th row in each group to be turned on, and the accompanying voltage switch tube 111 to be turned off; and after reaching a preset time length, controlling the first drive voltage switch tube 110 in the first switch control circuit 11 corresponding to the touch electrodes 10 in the i-th row in each group to be turned off, and the accompanying voltage switch tube 111 to be turned on.

[0122] Each first switch control circuit 11 includes a first driving voltage switch tube 110 and a companion voltage switch tube 111; the source of the first driving voltage switch tube 110 is connected to the corresponding second switch control circuit 13, and the drain of the first driving voltage switch tube 110 is connected to the corresponding touch electrode 10; the source of the companion voltage switch tube 111 is connected to the circuit for outputting the companion voltage, and the drain of the companion voltage switch tube 111 is connected to the corresponding touch electrode 10. When it is necessary to control the first switch control circuit 11 corresponding to the touch electrode 10 in the i-th row in each group to be turned on, the first driving voltage switch tube 110 in the first switch control circuit 11 corresponding to the touch electrode 10 in the i-th row in each group can be controlled to be turned on and the companion voltage switch tube 111 can be controlled to be turned off, so that the scanning drive signal can reach the corresponding touch electrode 10. When it is necessary to control the first switch control circuit 11 corresponding to the touch electrode 10 in the i-th row in each group to be isolated, the first drive voltage switch tube 110 in the first switch control circuit 11 corresponding to the touch electrode 10 in the i-th row in each group is controlled to be isolated and the accompanying voltage switch tube 111 is turned on. At this time, the scanning drive signal cannot reach the corresponding touch electrode 10, and the accompanying voltage is provided to the corresponding touch electrode 10.

[0123] In the above embodiment, by controlling the first driving voltage switch tube 110 in the first switch control circuit 11 , parallel scanning of multiple rows of touch electrodes 10 can be achieved, thereby reducing the scanning time of the touch electrodes 10 .

[0124] In some embodiments, the touch scanning method provided in the embodiments of the present application also includes the following steps: searching for each subgroup to which the touch electrode 10 in the i-th row in each group belongs; controlling the second switch control circuit 13 corresponding to each subgroup to be turned on; for each subgroup, after all touch electrodes in the current subgroup are scanned, controlling the corresponding second switch control circuit to be turned off.

[0125] Among them, the multiple rows of touch electrodes 10 in each group can be equally divided into L subgroups; the first switch control circuits 11 connected to the touch electrodes 10 belonging to the same subgroup in each column of touch electrodes 10 are connected to the same second switch control circuit 13; the second switch control circuits 13 connected to the L subgroups in the same group are connected to the same scan drive signal line. In the case of such a setting, when it is necessary to control the first switch control circuit 11 corresponding to the touch electrode 10 in the i-th row in each group to be turned on, in addition to controlling the first driving voltage switch tube 110 in the first switch control circuit 11 corresponding to the touch electrode 10 in the i-th row in each group to be turned on and the accompanying voltage switch tube 111 to be turned off, it is also necessary to find the subgroups to which the touch electrode 10 in the i-th row in each group belongs, and control the second switch control circuits 13 corresponding to each subgroup to be turned on.

[0126] In the above embodiment, by controlling the first switch control circuit 11 and the second switch control circuit 13, parallel scanning of multiple rows of touch electrodes 10 can be achieved. The second switch control circuit 13 can be used as a primary switch control circuit, and the second switch control circuit 13 can be used as a secondary switch control circuit. This hierarchical switch setting method makes the scanning control more precise.

[0127] In the above embodiment, the step of controlling the second switch control circuits 13 corresponding to each subgroup to be turned on includes: controlling the second driving voltage switch tubes 130 in the second switch control circuits 13 corresponding to each subgroup to be turned on.

[0128] Each second switch control circuit 13 may include a second drive voltage switch tube 130; the source of the second drive voltage switch tube 130 is connected to the corresponding scan drive signal line, and the drain of the second drive voltage switch tube 130 is connected to the corresponding first switch control circuit 11. In the case of such a setting, when it is necessary to control the second switch control circuit 13 corresponding to each subgroup to be turned on, the second drive voltage switch tube 130 in the second switch control circuit 13 corresponding to each subgroup may be controlled to be turned on.

[0129] In the above embodiment, by controlling the second driving voltage switch tube 130 in the second switch control circuit 13 in coordination with the control of the first switch control circuit 11 , multiple rows of touch electrodes 10 can be scanned in parallel, thereby reducing the scanning time of the touch electrodes 10 .

[0130] For example, see Fig.12As shown, a touch panel including 12×18 touch electrodes 10 is provided, and the touch electrodes 10 in the 12 rows of touch electrodes 10 in the 1-6 rows can be divided into a group, called group A; and the touch electrodes 10 in the 7-12 rows can be divided into a group, called group B. Further, the touch electrodes 10 in the 1-3 rows in group A are divided into a subgroup, called subgroup A1; the touch electrodes 10 in the 4-6 rows in group A are divided into a subgroup, called subgroup A2, so that group A is divided into subgroup A1 and subgroup A2. Similarly, the touch electrodes 10 in the 1-3 rows in group B are divided into a subgroup, called subgroup B1; the touch electrodes 10 in the 4-6 rows in group B are divided into a subgroup, called subgroup B2, so that group B is divided into subgroup B1 and subgroup B2. Each touch electrode 10 is connected to the corresponding first switch control circuit 11 through a corresponding touch signal line. For each column of touch electrodes 10 in the 18 columns of touch electrodes 10, the first switch control circuits 11 connected to the touch electrodes 10 belonging to subgroup A1 in the column of touch electrodes 10 are all connected to the same second switch control circuit; the first switch control circuits 11 connected to the touch electrodes 10 belonging to subgroup A2 are all connected to the same second switch control circuit; the first switch control circuits 11 connected to the touch electrodes 10 belonging to subgroup B1 are all connected to the same second switch control circuit; the first switch control circuits 11 connected to the touch electrodes 10 belonging to subgroup B2 are all connected to the same second switch control circuit. The second switch control circuits connected to subgroup A1 and subgroup A2 are connected to the drive signal line A, and the second switch control circuits connected to subgroup B1 and subgroup B2 are connected to the drive signal line B. Each first switch control circuit 11 includes a first drive voltage switch tube 110 and a companion voltage switch tube 111. Each second switch control circuit 13 also includes a second drive voltage switch tube 130 and a companion voltage switch tube 131. The first switch control circuit 11 connected to the touch electrodes 10 in the first row of subgroup A1 in the first column includes a first drive voltage switch tube T1.2.2 (whose gate voltage is S1.2.2) and a companion voltage switch tube T1.2.1 (whose gate voltage is S1.2.1), the first switch control circuit 11 connected to the touch electrodes 10 in the second row of subgroup A1 includes a first drive voltage switch tube T1.2.4 (whose gate voltage is S1.2.4) and a companion voltage switch tube T1.2.3 (whose gate voltage is S1.2.3), and the first switch control circuit 11 connected to the touch electrodes 10 in the third row of subgroup A1 includes a first drive voltage switch tube T1.2.5 (whose gate voltage is S1.2.5) and a companion voltage switch tube T1.2.6 (whose gate voltage is S1.2.6).The first switch control circuit 11 connected to the first row of touch electrodes 10 of subgroup A2 includes a first drive voltage switch tube T2.2.2 (whose gate voltage is S2.2.2) and a companion voltage switch tube T2.2.1 (whose gate voltage is S2.2.1), the first switch control circuit 11 connected to the second row of touch electrodes 10 of subgroup A2 includes a first drive voltage switch tube T2.2.4 (whose gate voltage is S2.2.4) and a companion voltage switch tube T2.2.3 (whose gate voltage is S2.2.3), and the first switch control circuit 11 connected to the third row of touch electrodes 10 of subgroup A2 includes a first drive voltage switch tube T2.2.4 (whose gate voltage is S2.2.4) and a companion voltage switch tube T2.2.3 (whose gate voltage is S2.2.3). 11 includes a first driving voltage switch tube T2.2.6 (whose gate voltage is S2.2.6) and a companion voltage switch tube T2.2.5 (whose gate voltage is S2.2.5), the second switch control circuit 13 corresponding to the sub-group A1 includes a second driving voltage switch tube T1.2 (whose gate voltage is S1.2) and a companion voltage switch tube T1.1 (whose gate voltage is S1.1), and the second switch control circuit 13 corresponding to the sub-group A2 includes a second driving voltage switch tube T2.2 (whose gate voltage is S2.2) and a companion voltage switch tube T2.1 (whose gate voltage is S2.1). Fig.12 Only one first switch control circuit and one second switch control circuit are shown. The configuration of group B is similar to that of group A, and the other columns are similar to column 1, which will not be described in detail here. Fig.13As shown, this timing diagram can be used to control the switch control circuits in group A and group B respectively. Taking the first column as an example, in the T1 time period, S1.2 and S1.2.2 are set low, so that T1.2 and T1.2.2 are turned on, and the scanning drive signal output by the driver chip through the drive signal line A reaches the first row of touch electrodes 10 in group A through T1.2 and T1.2.2. At the same time, the gate voltages of T1.1, T1.2.1, T1.2.4, T1.2.6, T2.1, T2.2, T2.2.2, T2.2.4, and T2.2.6 are set high to isolate these switch tubes; the gate voltages of T1.2.3, T1.2.5, T2.2.1, T2.2.3, and T2.2.5 are set low to provide accompanying voltages for the corresponding touch electrodes 10. Since each column has the same settings, and the control process of group B and group A is carried out simultaneously, the T1 time period can realize parallel scanning of the first row of group A and the first row of group B. In the T2 time period, S1.2 and S1.2.4 are set low, so that T1.2 and T1.2.4 are turned on, and the scanning drive signal output by the driver chip through the drive signal line A reaches the second row of touch electrodes 10 of group A through T1.2 and T1.2.4. At the same time, the gate voltages of T1.1, T1.2.2, T1.2.3, T1.2.6, T2.1, T2.2, T2.2.2, T2.2.4, and T2.2.6 are set high to isolate these switch tubes; the gate voltages of T1.2.1, T1.2.5, T2.2.1, T2.2.3, and T2.2.5 are set low to provide accompanying voltages for the corresponding touch electrodes 10. The T2 time period can realize the parallel scanning of the second row of group A and the second row of group B. Here, only T1 and T2 are taken as examples. The control conditions of each switch tube in the T3, T4, T5, and T6 time periods can be combined with Fig.13 According to the above configuration, the scanning of all touch electrodes 10 can be completed within the above 6 time periods, and the speed is twice as fast as that of the line-by-line scanning.

[0131] It should be understood that, although the various steps in the flowcharts involved in the above-mentioned embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-mentioned embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0132] Based on the same inventive concept, the embodiment of the present application also provides a touch scanning device for implementing the touch scanning method involved above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above method, so the specific limitations in one or more touch scanning device embodiments provided below can refer to the above limitations on the touch scanning method, and will not be repeated here.

[0133] In an exemplary embodiment, Fig.14 As shown, a touch scanning device is provided, comprising:

[0134] A determination module 1101 is used to determine whether to enter the touch control stage;

[0135] The control module 1102 is used for, after entering the touch stage, for each column of touch electrodes, controlling the first switch control circuit corresponding to the touch electrodes in the i-th row in each group to be turned on; after reaching a preset time length, controlling the first switch control circuit corresponding to the touch electrodes in the i-th row in each group to be cut off, and controlling the first switch control circuit corresponding to the touch electrodes in the i+1-th row in each group to be turned on, (n-1)≥i≥1, n is the number of rows of touch electrodes in each group.

[0136] In some embodiments, the control module 1102 is used to control the first driving voltage switch tube in the first switch control circuit corresponding to the touch electrode in the i-th row in each group to be turned on, and the accompanying voltage switch tube to be turned off; after the preset time is reached, the first driving voltage switch tube in the first switch control circuit corresponding to the touch electrode in the i-th row in each group is controlled to be turned off, and the accompanying voltage switch tube to be turned on.

[0137] In some embodiments, the control module 1102 is used to find the subgroups to which the touch electrodes in the i-th row in each group belong; control the second switch control circuits corresponding to each subgroup to be turned on; and after a preset time period is reached, control the second switch control circuits corresponding to each subgroup to be turned off.

[0138] In some embodiments, the control module 1102 is used to control the second driving voltage switch tubes in the second switch control circuits corresponding to each subgroup to be turned on.

[0139] Each module in the above touch scanning device can be implemented in whole or in part by software, hardware or a combination thereof. Each module can be embedded in or independent of a processor in a computer device in the form of hardware, or can be stored in a memory in a computer device in the form of software, so that the processor can call and execute the operations corresponding to each module.

[0140] In an exemplary embodiment, a touch control chip is provided, including a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the following steps when executing the computer program:

[0141] After entering the touch control stage, for each column of touch control electrodes, the first switch control circuit corresponding to the touch control electrode in the i-th row in each group is controlled to be turned on;

[0142] After the preset time is reached, the first switch control circuit corresponding to the touch electrodes in the i-th row in each group is controlled to be disconnected, and the first switch control circuit corresponding to the touch electrodes in the i+1-th row in each group is controlled to be turned on, (n-1)≥i≥1, n is the number of rows of touch electrodes in each group.

[0143] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0144] Controlling the first driving voltage switch tube in the first switch control circuit corresponding to the touch electrodes in the i-th row in each group to be turned on and the accompanying voltage switch tube to be turned off;

[0145] After the preset time is reached, the first driving voltage switch tube in the first switch control circuit corresponding to the touch electrodes in the i-th row in each group is controlled to be disconnected and the accompanying voltage switch tube is controlled to be turned on.

[0146] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0147] Find the subgroups to which the touch electrodes in the i-th row in each group belong; control the second switch control circuits corresponding to the subgroups to be turned on; and after a preset time period, control the second switch control circuits corresponding to the subgroups to be turned off.

[0148] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0149] The second driving voltage switch tubes in the second switch control circuits corresponding to each subgroup are controlled to be turned on.

[0150] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:

[0151] After entering the touch control stage, for each column of touch control electrodes, the first switch control circuit corresponding to the touch control electrode in the i-th row in each group is controlled to be turned on;

[0152] After the preset time is reached, the first switch control circuit corresponding to the touch electrodes in the i-th row in each group is controlled to be disconnected, and the first switch control circuit corresponding to the touch electrodes in the i+1-th row in each group is controlled to be turned on, (n-1)≥i≥1, n is the number of rows of touch electrodes in each group.

[0153] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0154] Controlling the first driving voltage switch tube in the first switch control circuit corresponding to the touch electrodes in the i-th row in each group to be turned on and the accompanying voltage switch tube to be turned off;

[0155] After the preset time is reached, the first driving voltage switch tube in the first switch control circuit corresponding to the touch electrodes in the i-th row in each group is controlled to be disconnected and the accompanying voltage switch tube is controlled to be turned on.

[0156] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0157] Find the subgroups to which the touch electrodes in the i-th row in each group belong; control the second switch control circuits corresponding to the subgroups to be turned on; and after a preset time period, control the second switch control circuits corresponding to the subgroups to be turned off.

[0158] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0159] The second driving voltage switch tubes in the second switch control circuits corresponding to each subgroup are controlled to be turned on.

[0160] In one embodiment, a computer program product is provided, comprising a computer program, which, when executed by a processor, implements the following steps:

[0161] After entering the touch control stage, for each column of touch control electrodes, the first switch control circuit corresponding to the touch control electrode in the i-th row in each group is controlled to be turned on;

[0162] After the preset time is reached, the first switch control circuit corresponding to the touch electrodes in the i-th row in each group is controlled to be disconnected, and the first switch control circuit corresponding to the touch electrodes in the i+1-th row in each group is controlled to be turned on, (n-1)≥i≥1, n is the number of rows of touch electrodes in each group.

[0163] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0164] Controlling the first driving voltage switch tube in the first switch control circuit corresponding to the touch electrodes in the i-th row in each group to be turned on and the accompanying voltage switch tube to be turned off;

[0165] After the preset time is reached, the first driving voltage switch tube in the first switch control circuit corresponding to the touch electrodes in the i-th row in each group is controlled to be disconnected and the accompanying voltage switch tube is controlled to be turned on.

[0166] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0167] Find the subgroups to which the touch electrodes in the i-th row in each group belong; control the second switch control circuits corresponding to the subgroups to be turned on; and after a preset time period, control the second switch control circuits corresponding to the subgroups to be turned off.

[0168] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0169] The second driving voltage switch tubes in the second switch control circuits corresponding to each subgroup are controlled to be turned on.

[0170] A person of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment method can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, an artificial intelligence (AI) processor, etc., but are not limited to this.

[0171] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0172] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A touch panel, characterized in that: include: M×N touch electrodes arranged in an array, M×N touch signal lines corresponding to the M×N touch electrodes, M×N first switch control circuits corresponding to the M×N touch electrodes, and a touch chip; wherein, The M rows of touch electrodes are divided into multiple groups by row; each touch electrode is connected to the corresponding first switch control circuit through the corresponding touch signal line; the first switch control circuit connected to the touch electrodes belonging to the same group in each column of touch electrodes is connected to the same scan drive signal line, and each scan drive signal line is connected to the touch chip.

2. The touch panel according to claim 1, characterized in that: The number of rows of touch electrodes in each group is the same.

3. The touch panel according to claim 1, characterized in that: The multiple rows of touch electrodes in each group are equally divided into L subgroups; the first switch control circuits connected to the touch electrodes belonging to the same subgroup in each column of touch electrodes are connected to the same second switch control circuit; the second switch control circuits connected to the L subgroups in the same group are connected to the same scan drive signal line.

4. The touch panel according to claim 1, characterized in that: Each first switch control circuit includes a first driving voltage switch tube and a companion voltage switch tube; the source of the first driving voltage switch tube is connected to the corresponding second switch control circuit, and the drain of the first driving voltage switch tube is connected to the corresponding touch electrode; the source of the companion voltage switch tube is connected to the circuit for outputting the companion voltage, and the drain of the companion voltage switch tube is connected to the corresponding touch electrode.

5. The touch panel according to claim 3, characterized in that: Each second switch control circuit includes a second drive voltage switch tube; the source of the second drive voltage switch tube is connected to the corresponding scan drive signal line, and the drain of the second drive voltage switch tube is connected to the corresponding first switch control circuit.

6. The touch panel according to claim 1, characterized in that: The touch panel further includes: a substrate, a light-emitting layer and an isolation structure; the light-emitting layer and the isolation structure are both formed on the substrate, the isolation structure surrounds the light-emitting layer, M×N grooves are formed in the isolation structure, and the M×N touch electrodes are respectively arranged in the M×N grooves; Preferably, the isolation structure and the touch electrode are arranged at intervals.

7. The touch panel according to claim 6, characterized in that: The touch panel also includes: a flat layer, which is formed on the substrate, the light-emitting layer and the isolation structure are both formed on the flat layer, the flat layer is provided with first via holes corresponding to the M×N grooves, and the M×N touch electrodes are respectively connected with the corresponding touch signal lines through the corresponding first via holes.

8. The touch panel according to claim 7, characterized in that: The touch panel also includes: a pixel defining layer, the pixel defining layer is used to define the position of the light-emitting layer, the pixel defining layer is formed on the flat layer, the isolation structure is formed on the pixel defining layer, the pixel defining layer is provided with second via holes corresponding to the M×N grooves respectively, and the M×N touch electrodes arranged in the M×N grooves are connected to the corresponding touch signal lines through the corresponding first via holes and the second via holes respectively.

9. The touch panel according to claim 8, characterized in that: The touch electrode and the isolation structure are made of the same material, and the touch electrode is disposed in a space defined by the first via hole, the second via hole, and the groove.

10. The touch panel according to claim 6, characterized in that: The orthographic projection of each touch electrode on the substrate is located within the orthographic projection of the corresponding groove on the substrate.

11. A display device, characterized in that: The touch panel comprises the touch panel according to any one of claims 1 to 10.

12. A touch panel, characterized in that: include: A plurality of touch control electrodes arranged at intervals, a plurality of touch control signal lines respectively corresponding to the plurality of touch control electrodes, a plurality of first switch control circuits respectively corresponding to the plurality of touch control electrodes, and a touch control chip; wherein, Multiple touch electrodes are divided into multiple groups according to regions, and each touch electrode is connected to a corresponding first switch control circuit through a corresponding touch signal line; the first switch control circuits connected to the touch electrodes belonging to the same group are connected to the same scan drive signal line, and each scan drive signal line is connected to the touch chip.

13. The touch panel according to claim 12, characterized in that: The number of rows and columns of touch electrodes in each group is the same.

14. A touch scanning method, characterized in that: Applied to the touch panel according to any one of claims 1 to 10, the method comprises: After entering the touch control stage, for each column of touch control electrodes, the first switch control circuit corresponding to the touch control electrode in the i-th row in each group is controlled to be turned on; After the preset time is reached, the first switch control circuit corresponding to the touch electrodes in the i-th row in each group is controlled to be disconnected, and the first switch control circuit corresponding to the touch electrodes in the i+1-th row in each group is controlled to be turned on, (n-1)≥i≥1, n is the number of rows of touch electrodes in each group.

15. The method according to claim 14, characterized in that The method of controlling the first switch control circuit corresponding to the touch electrodes in the i-th row in each group to be turned on; and controlling the first switch control circuit corresponding to the touch electrodes in the i-th row in each group to be turned off after a preset time has elapsed, comprises: Controlling the first driving voltage switch tube in the first switch control circuit corresponding to the touch electrodes in the i-th row in each group to be turned on and the accompanying voltage switch tube to be turned off; After the preset time is reached, the first driving voltage switch tube in the first switch control circuit corresponding to the touch electrodes in the i-th row in each group is controlled to be disconnected and the accompanying voltage switch tube is controlled to be turned on.

16. The method according to claim 14, characterized in that The method further comprises: Find the subgroups to which the touch electrodes in the i-th row in each group belong; control the second switch control circuits corresponding to the subgroups to be turned on; for each subgroup, after all the touch electrodes in the current subgroup are scanned, control the corresponding second switch control circuit to be turned off.

17. The method according to claim 16, characterized in that The method of controlling the second switch control circuits corresponding to each subgroup to be turned on comprises: The second driving voltage switch tubes in the second switch control circuits corresponding to each subgroup are controlled to be turned on.

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