CN112631457B

CN112631457B - Display panel and display device

Info

Publication number: CN112631457B
Application number: CN202011520217.7A
Authority: CN
Inventors: 林孚银; 李仲秋
Original assignee: Xiamen Tianma Microelectronics Co Ltd
Current assignee: Xiamen Tianma Microelectronics Co Ltd
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2024-07-09
Anticipated expiration: 2040-12-21
Also published as: CN112631457A

Abstract

The invention discloses a display panel and a display device, wherein the display panel comprises a plurality of first main touch detection channels and a plurality of first auxiliary touch detection channels, wherein the first main touch detection channels and the first auxiliary touch detection channels extend along a first direction; a plurality of second main touch detection channels and a plurality of second auxiliary touch detection channels extending along a second direction; the driving chip is respectively and electrically connected with the first main touch detection channel, the first auxiliary touch detection channel, the second main touch detection channel and the second auxiliary touch detection channel; in the first detection stage, a first main touch detection channel and a second auxiliary touch detection channel feed back a first touch detection signal to a driving chip; in a second detection stage, the second main touch detection channel and the first auxiliary touch detection channel feed back a second touch detection signal to the driving chip; the driving chip is used for determining a main channel detection position and an auxiliary channel detection position according to the first touch detection signal and the second touch detection signal, further determining the touch detection position and ensuring high touch detection accuracy.

Description

Display panel and display device

Technical Field

The embodiment of the invention relates to the technical field of display, in particular to a display panel and a display device.

Background

With the development of electronic screen technology, more and more operations can be performed by touching a screen, and a stylus is a device that contacts the screen to perform user operations.

The touch pen in the prior art comprises an active pen, a circuit is contained in the active pen, and the information is transmitted to the touch screen through the pen, so that the touch screen receives signals, track coordinates of the pen are detected, and information transmission between the touch pen and the touch screen is realized.

The existing active pen scanning scheme is that all touch channels in the X direction are scanned firstly, then the touch channels in the Y direction are scanned, and the processor calculates the touch position of the current active pen according to the position information of the active pen signals on the X and Y channels. However, the touch control position determined by the active pen scanning scheme in the prior art is different from the actual position, and the specification of the active pen required by a user cannot be met.

Disclosure of Invention

The invention provides a display panel and a display device, wherein a first auxiliary touch detection channel and a second auxiliary touch detection channel are additionally arranged, and the touch position is determined through the first main touch detection channel, the second main touch detection channel, the first auxiliary touch detection channel and the second auxiliary touch detection channel, so that the touch detection precision is improved.

In a first aspect, an embodiment of the present invention provides a display panel, including:

a plurality of first main touch detection channels and a plurality of first auxiliary touch detection channels extending along a first direction;

A plurality of second main touch detection channels and a plurality of second auxiliary touch detection channels extending along a second direction; the second direction intersects with the first direction and is parallel to the light-emitting surface of the display panel;

The driving chip is respectively and electrically connected with the first main touch detection channel, the first auxiliary touch detection channel, the second main touch detection channel and the second auxiliary touch detection channel;

in a first detection stage, the first main touch detection channel and the second auxiliary touch detection channel receive touch control driving signals provided by the driving chip and feed back the first touch control detection signals to the driving chip;

In a second detection stage, the second main touch detection channel and the first auxiliary touch detection channel receive touch control driving signals provided by the driving chip and feed back the second touch control detection signals to the driving chip;

The driving chip is used for determining a main channel detection position and an auxiliary channel detection position according to the first touch detection signal and the second touch detection signal, and determining a touch detection position according to the main channel detection position and the auxiliary channel detection position.

In a second aspect, an embodiment of the present invention further provides a display apparatus, where the display apparatus includes the display panel provided in the first aspect.

According to the display panel and the display device provided by the embodiment of the invention, the plurality of first auxiliary touch detection channels and the plurality of second auxiliary touch detection channels are additionally arranged in the display panel, the extending directions of the first auxiliary touch detection channels and the first main touch detection channels are the same, and the extending directions of the second auxiliary touch detection channels and the second main touch detection channels are the same; in the first detection stage, a first touch detection signal is determined through a first main touch detection channel and a second auxiliary touch detection channel which are different in extension direction, in the second detection stage, a second touch detection signal is determined according to the second main touch detection channel and the first auxiliary touch detection channel which are different in extension direction, a main channel detection position and an auxiliary channel detection position are determined according to the first touch detection signal and the second touch detection signal, and further a touch detection position is determined according to the main channel detection position and the auxiliary channel detection position, so that the touch position detection precision is high, the touch performance of an active pen is improved, and the user experience is improved.

Drawings

FIG. 1 is a schematic diagram of a main touch detection channel in the related art;

fig. 2 is a schematic diagram of a touch detection position corresponding to fig. 1;

fig. 3 is a schematic structural diagram of a display panel according to an embodiment of the present invention;

Fig. 4 is a schematic structural diagram of a first main touch detection channel and a second auxiliary touch detection channel in the display panel provided in fig. 3;

FIG. 5 is a schematic diagram of a second main touch detection channel and a first auxiliary touch detection channel in the display panel provided in FIG. 3;

FIG. 6 is a schematic diagram of an active pen trigger enable signal;

FIG. 7 is a schematic diagram of a touch detection position corresponding to the display panel provided in FIG. 3;

Fig. 8 is a schematic diagram comparing touch detection positions corresponding to a technical scheme provided by the embodiment of the present invention and a prior art scheme;

FIG. 9 is a schematic diagram of another touch detection position corresponding to the display panel provided in FIG. 3;

Fig. 10 is a schematic structural diagram of another display panel according to an embodiment of the present invention;

FIG. 11 is a schematic diagram of a touch detection position corresponding to the display panel provided in FIG. 10;

fig. 12 is a schematic structural diagram of another display panel according to an embodiment of the present invention;

FIG. 13 is a schematic diagram of a structure of a first main touch detection channel and a second auxiliary touch detection channel in the display panel provided in FIG. 12;

FIG. 14 is a schematic diagram of a structure of a second main touch detection channel and a first auxiliary touch detection channel in the display panel provided in FIG. 12;

FIG. 15 is a schematic diagram of another first main touch detection channel and a second auxiliary touch detection channel of the display panel provided in FIG. 12;

FIG. 16 is a schematic diagram illustrating another second main touch detection channel and a first auxiliary touch detection channel of the display panel provided in FIG. 12;

FIG. 17 is a schematic diagram of a structure of a first main touch detection channel and a second auxiliary touch detection channel in the display panel provided in FIG. 12;

FIG. 18 is a schematic diagram illustrating a structure of a second main touch detection channel and a first auxiliary touch detection channel in the display panel provided in FIG. 12;

FIG. 19 is a schematic view of a structure of a first main touch detection channel and a second auxiliary touch detection channel of the display panel provided in FIG. 12;

FIG. 20 is a schematic diagram of a structure of a second main touch detection channel and a first auxiliary touch detection channel in the display panel provided in FIG. 12;

fig. 21 is a schematic structural view of a display panel according to another embodiment of the present invention;

FIG. 22 is a schematic diagram of a display panel according to another embodiment of the present invention;

Fig. 23 is a schematic structural diagram of a display device according to an embodiment of the present invention.

Detailed Description

The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.

Fig. 1 is a schematic structural diagram of a display panel in the related art, fig. 2 is a schematic structural diagram of a touch detection position corresponding to fig. 1, and, in combination with fig. 1 and fig. 2, the display panel includes a plurality of first main touch detection channels extending along a first direction (X direction shown in the drawing), where X0'-X4' are respectively; and a plurality of second main touch detection channels extending along a second direction (Y direction shown in the figure) are Y0'-Y4' respectively. In a first detection stage, a first main touch detection channel receives a touch driving signal and determines a touch position of a touch active pen as position1 based on a touch track of the touch active pen; in the second detection stage, the second main touch detection channel receives a touch driving signal and determines that the touch position of the touch active pen is position2 based on the touch track of the touch active pen, and the driving chip determines the touch detection position1-2 based on the touch position being position1 and the touch position being position 2. According to fig. 1 and 2, the positions 1-2 differ greatly from the actual touch trajectory of the touch active pen, resulting in a bottom-out touch position detection accuracy. The inventor researches that when the scribing speed of the touch active pen is high, the trace following performance of the active pen is poor, for example, when the active pen is scribed at about 15cm/s, the position deviation is more than 0.2mm, and the use experience of a user is affected.

Based on the technical problems described above, an embodiment of the present invention provides a display panel and a display device, where the display panel includes a plurality of first main touch detection channels and a plurality of first auxiliary touch detection channels extending along a first direction; a plurality of second main touch detection channels and a plurality of second auxiliary touch detection channels extending along a second direction; the second direction intersects with the first direction and is parallel to the light-emitting surface of the display panel; the driving chip is electrically connected with the first main touch detection channel, the first auxiliary touch detection channel, the second main touch detection channel and the second auxiliary touch detection channel respectively through channels; in a first detection stage, the first main touch detection channel and the second auxiliary touch detection channel receive touch control driving signals provided by the driving chip and feed back the first touch control detection signals to the driving chip; in a second detection stage, the second main touch detection channel and the first auxiliary touch detection channel receive touch control driving signals provided by the driving chip and feed back the second touch control detection signals to the driving chip; the driving chip is used for determining a main channel detection position and an auxiliary channel detection position according to the first touch detection signal and the second touch detection signal, and determining a touch detection position according to the main channel detection position and the auxiliary channel detection position. By adopting the technical scheme, the plurality of first auxiliary touch detection channels and the plurality of second auxiliary touch detection channels are additionally arranged in the display panel, the extending directions of the first auxiliary touch detection channels and the first main touch detection channels are the same, and the extending directions of the second auxiliary touch detection channels and the second main touch detection channels are the same; in the first detection stage, a first touch detection signal is determined through a first main touch detection channel and a second auxiliary touch detection channel which are different in extension direction, in the second detection stage, a second touch detection signal is determined according to the second main touch detection channel and the first auxiliary touch detection channel which are different in extension direction, a main channel detection position and an auxiliary channel detection position are determined according to the first touch detection signal and the second touch detection signal, and further a touch detection position is determined according to the main channel detection position and the auxiliary channel detection position, so that the touch position detection precision is high, the touch performance of an active pen is improved, and the user experience is improved.

The foregoing is the core idea of the embodiment of the present invention, and the technical solutions in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without making any inventive effort are intended to fall within the scope of the present invention.

Fig. 3 is a schematic structural view of a display panel provided by the embodiment of the present invention, fig. 4 is a schematic structural view of a first main touch detection channel and a second auxiliary touch detection channel in the display panel provided by fig. 3, fig. 5 is a schematic structural view of a second main touch detection channel and a first auxiliary touch detection channel in the display panel provided by fig. 3, fig. 6 is a schematic structural view of an active pen trigger enable signal, fig. 7 is a schematic structural view of a touch detection position corresponding to the display panel provided by fig. 3, and, in combination with fig. 3-7, the display panel 10 provided by the embodiment of the present invention includes a plurality of first main touch detection channels 11 and a plurality of first auxiliary touch detection channels 12 extending along a first direction (X direction as shown in the figure); a plurality of second main touch detection channels 13 and a plurality of second auxiliary touch detection channels 14 extending in the second direction; the second direction intersects with the first direction and is parallel to the light emergent surface of the display panel 10; the driving chip 15 is electrically connected with the first main touch detection channel 11, the first auxiliary touch detection channel 12, the second main touch detection channel 13 and the second auxiliary touch detection channel 14 respectively; in the first detection stage Slot 1, the first main touch detection channel 11 and the second auxiliary touch detection channel 14 receive the touch driving signal provided by the driving chip 15 and feed back the first touch detection signal to the driving chip 15; in the second detection stage Slot 2, the second main touch detection channel 13 and the first auxiliary touch detection channel 12 receive the touch driving signal provided by the driving chip 15 and feed back the second touch detection signal to the driving chip 15; the driving chip 15 is configured to determine a main channel detection position and an auxiliary channel detection position according to the first touch detection signal and the second touch detection signal, and determine a touch detection position according to the main channel detection position and the auxiliary channel detection position.

As illustrated in fig. 2, the display panel 10 includes a first main touch detection channel 11, a first auxiliary touch detection channel 12, a second main touch detection channel 13, and a second auxiliary touch detection channel 14. The first main touch detection channel 11 is along a first direction (X direction as shown in the figure), the second auxiliary touch detection channel 14 is along a second direction (Y direction as shown in the figure), and in a first detection stage Slot 1, the driving chip 15 provides touch driving signals to the first main touch detection channel 11 and the second auxiliary touch detection channel 14 and receives the first touch detection signals fed back by the first main touch detection channel 11 and the second auxiliary touch detection channel 14, and determines a first touch position1 (X1, Y1) based on the first touch detection signals; the second main touch detection channel 13 is along the second direction (Y direction as shown in the figure), the first auxiliary touch detection channel 12 is along the first direction (X direction as shown in the figure), and in the second detection stage Slot 2, the driving chip 15 provides touch driving signals to the second main touch detection channel 13 and the first auxiliary touch detection channel 12 and receives the second touch detection signals fed back by the second main touch detection channel 13 and the first auxiliary touch detection channel 12, and determines the second touch position2 (X2, Y2) based on the second touch detection signals. Further, the driving chip 15 is further configured to determine a primary channel detection position3 (x 2, y 1) and an auxiliary channel detection position4 (x 1, y 2) according to the first touch position1 (x 1, y 1) and the second touch position2 (x 2, y 2), and determine a touch detection position (x, y) according to the primary channel detection position3 (x 2, y 1) and the auxiliary channel detection position4 (x 1, y 2). As can be known by comparing fig. 2 and fig. 7, compared with the touch detection position1-2 determined by the prior art, the position (x, y) of the touch detection position determined by the display panel provided by the embodiment of the invention is closer to the actual track of the touch active pen, so that the detection precision of the touch active pen is improved, the follow-up performance of the touch active pen is ensured to be stronger, and the use experience of the touch active pen is improved.

Next, a specific implementation manner is used to describe the difference between the touch detection position obtained by the technical scheme provided by the embodiment of the present invention and the touch detection position obtained by the existing technical scheme.

Fig. 8 is a schematic diagram comparing touch detection positions corresponding to a technical scheme provided by the embodiment of the present invention and a scheme in the prior art, as shown in fig. 8, taking movement of a touch active pen in a fourth quadrant as an example, paths OA, OB, OC, OD and OE represent part of movement tracks of the touch active pen in the fourth quadrant; and the point a, the point b, the point c, the point d and the point e are touch detection positions which are obtained by adopting the scanning of the existing touch active pen and fitting of an algorithm under the motion tracks of OA, OB, OC, OD and OE respectively, and according to the result, the reporting position is on the X axis no matter how the active pen moves in the fourth quadrant. Curve a is a touch detection position curve fitted by the scanning and algorithm provided by the embodiment of the invention when the driving pen moves in the fourth quadrant, and points 1, 2, 3, 4 and 5 are touch detection positions fitted by the scanning and algorithm provided by the embodiment of the invention under the OA, OB, OC, OD and OE motion tracks respectively. Compared with the prior art, along with the change of the motion trail of the touch active pen, the coordinate position fitted by the technical scheme of the embodiment of the invention presents a situation closer to actual motion in the Y direction, and the detection precision of the touch position is higher.

It can be understood that, as shown in fig. 6, the first detection stage Slot 1 and the second detection stage Slot 2 in the embodiment of the present invention are two adjacent enabled stages corresponding to the touch timing sequence of the touch active pen.

It should be noted that, the specific forms of the first main touch detection channel 11 and the second main touch detection channel 13 are not limited in the embodiment of the present invention. Optionally, the first main touch detection channel 11 and the second main touch detection channel 13 may be touch electrodes, and when no touch is performed by the touch active pen, the touch electrodes may be conventional touch electrodes to detect a touch position and/or a touch pressure; when the touch active pen performs touch, the touch electrodes are multiplexed into a first main touch detection channel 11 and a second main touch detection channel 13. Further, the touch electrodes multiplexed as the main touch detection channels may be mutual capacitive touch electrodes, for example, a touch driving electrode extending along the first direction is used as a first main touch detection channel, a touch sensing electrode extending along the second direction is used as a second main touch detection channel, or a touch sensing electrode extending along the first direction is used as a first main touch detection channel, and a touch driving electrode extending along the second direction is used as a second main touch detection channel. In addition, the touch driving electrode and the touch sensing electrode can be arranged in the same layer or different layers, and the embodiment of the invention is not limited to the same. Further, the touch electrode multiplexed as the main touch detection channel may be a self-capacitance type touch electrode, for example, a plurality of self-capacitance type touch electrode blocks arranged along the first direction are used as the first main touch detection channel, and a plurality of self-capacitance type touch electrode blocks arranged along the second direction are used as the second main touch detection channel. Further, the first auxiliary touch detection channel 12 and the second auxiliary touch detection channel 14 may be separately added touch detection channels, or may be part of touch electrodes multiplexed as auxiliary touch detection channels, or may be other structures in the display panel multiplexed as auxiliary touch detection channels.

It should be further noted that, in the embodiment of the present invention, only the first direction is taken as the X direction, and corresponds to the horizontal direction; the second direction is the Y direction, and the corresponding vertical direction is exemplified. It is understood that the first direction may be a vertical direction and the second direction may be a horizontal direction; or the first direction is located in a direction with a preset included angle in the horizontal direction, and the second direction is located in a direction with the preset included angle in the vertical direction, which is not limited in the embodiment of the present invention.

In summary, in the display panel provided by the embodiment of the invention, a plurality of first auxiliary touch detection channels and a plurality of second auxiliary touch detection channels are additionally arranged in the display panel, the extending directions of the first auxiliary touch detection channels and the first main touch detection channels are the same, and the extending directions of the second auxiliary touch detection channels and the second main touch detection channels are the same; in the first detection stage, a first touch detection signal is determined through a first main touch detection channel and a second auxiliary touch detection channel which are different in extension direction, in the second detection stage, a second touch detection signal is determined according to the second main touch detection channel and the first auxiliary touch detection channel which are different in extension direction, a main channel detection position and an auxiliary channel detection position are determined according to the first touch detection signal and the second touch detection signal, and further a touch detection position is determined according to the main channel detection position and the auxiliary channel detection position, so that the touch position detection precision is high, the touch performance of an active pen is improved, and the user experience is improved.

With continued reference to fig. 3, as a possible implementation manner, along the second direction (Y direction as shown in the drawing), the first auxiliary touch detection channels 12 are disposed between two adjacent first main touch detection channels 11; along the first direction (X direction as shown in the figure), the second auxiliary touch detection channels 14 are arranged between two adjacent second main touch detection channels 13, so that the arrangement between the first main touch detection channels 11 and the first auxiliary touch detection channels 12 is compact, the arrangement between the second main touch detection channels 13 and the second auxiliary touch detection channels 14 is compact, the whole touch detection channels are compact, the touch detection precision is high, and especially when the touch track of the touch active pen is a continuous track, the compact touch detection channels can correspond to a plurality of touch detection positions, the touch detection precision is guaranteed, and the problem that the touch detection precision is low due to sparse touch channel arrangement caused by loose touch detection channel structure is avoided.

On the basis of the above-described embodiment, as shown in fig. 3, 4 and 5, the extending width of the first main touch detection channel 11 is larger than the extending width of the first auxiliary touch detection channel 12 in the second direction (Y direction as shown in the drawings); and/or, along the first direction (X direction as shown in the figure), the extending width of the second main touch detection channel 13 is greater than the extending width of the second auxiliary touch detection channel 14, and in this embodiment, the extending width of the first main touch detection channel 11 is greater than the extending width of the first auxiliary touch detection channel 12 along the second direction (Y direction as shown in the figure), and meanwhile, along the first direction (X direction as shown in the figure), the extending width of the second main touch detection channel 13 is greater than the extending width of the second auxiliary touch detection channel 14 is exemplified.

Specifically, in view of the accuracy requirement of touch, it is required that the mutual distance between each adjacent primary touch detection channel is not too large, i.e., the distance between two adjacent primary touch detection channels 11 in the second direction is not too large, and the distance between two adjacent secondary touch detection channels 13 in the first direction is not too large, i.e., the size of the primary auxiliary touch detection channel 12 disposed between two adjacent primary touch detection channels 11 is not too large, and the size of the secondary auxiliary touch detection channel 14 disposed between two adjacent secondary primary touch detection channels 13 is not too large. Specifically, the extending width of the first main touch detection channel 11 along the second direction may be set to be larger than the extending width of the first auxiliary touch detection channel 12; and/or, along the first direction, the extension width of the second main touch detection channel 13 is greater than the extension width of the second auxiliary touch detection channel 14, so that higher touch detection precision is ensured.

Taking the existing algorithm as an example, the extending width of the first main touch detection channels 11 along the second direction is generally set to be about 4mm, and the distance between two adjacent first main touch detection channels 11 is also set to be about 4 mm; the extension width of the second main touch detection channels 13 along the first direction is about 4mm, and the distance between two adjacent second main touch detection channels 13 is also about 4 mm. Therefore, the extending width of the first auxiliary touch detection channels 12 inserted between the first main touch detection channels 11 is smaller than 4mm, for example, the ratio between the extending width of the first auxiliary touch detection channels 12 and the extending width of the first main touch detection channels 11 is 1/4-1/2 along the second direction; the extending width of the second auxiliary touch detection channels 14 inserted between the second main touch detection channels 13 is smaller than 4mm, for example, the ratio of the extending width of the second auxiliary touch detection channels 14 to the extending width of the second main touch detection channels 13 is 1/4-1/2 along the first direction, so that higher touch detection precision is ensured.

On the basis of the above embodiment, the driving chip is configured to determine the touch detection position according to the main channel detection position and the auxiliary channel detection position, where the weight duty ratio of the main channel detection position is smaller than the weight duty ratio of the auxiliary channel detection position.

For example, since the size of the auxiliary touch detection channel is smaller than that of the main touch detection channel, the signal amount detected by the auxiliary touch detection channel is smaller than that detected by the main touch detection channel, for example, when the proportional relationship between the size of the auxiliary touch detection channel and the size of the main touch detection channel is 1/4-1/2, the signal amount detected by the auxiliary touch detection channel is also 1/4-1/2 of that detected by the main touch detection channel, so that the detection sensitivity of the auxiliary touch detection channel is poor. Therefore, when the driving chip is used for determining the touch control detection position according to the main channel detection position and the auxiliary channel detection position, the weight duty ratio of the main channel detection position is smaller than that of the auxiliary channel detection position, and at the moment, the touch control detection position determined according to the main channel detection position and the auxiliary channel detection position is closer to the actual touch control position, so that the touch control position detection precision is improved. For example, fig. 9 is a schematic diagram of another touch detection position corresponding to the display panel provided in fig. 3, where the difference between the detection position corresponding to fig. 9 and the detection position corresponding to fig. 7 is that when the driving chip determines the touch detection position according to the main channel detection position and the auxiliary channel detection position, the weight duty ratio of the main channel detection position is smaller than that of the auxiliary channel detection position, so that the touch detection position is guaranteed to be close to the actual touch position, and the touch position detection accuracy is improved.

Fig. 10 is a schematic structural view of another display panel provided in the embodiment of the present invention, and fig. 11 is a schematic structural view of a touch detection position corresponding to the display panel provided in fig. 10, and, as shown in fig. 10 and 11, along a second direction (a Y direction shown in the drawings), an extension width of the first main touch detection channel 11 is equal to an extension width of the first auxiliary touch detection channel 12; along the first direction (X direction as shown in the figure), the extension width of the second main touch detection channel 13 is equal to the extension width of the second auxiliary touch detection channel 14.

For example, when the extending width of the first main touch detection channel 11 is equal to the extending width of the first auxiliary touch detection channel 12 along the second direction, and the extending width of the second main touch detection channel 13 is equal to the extending width of the second auxiliary touch detection channel 14 along the first direction (X direction as shown in the figure), the weight ratio of the main channel detection position is the same as the weight ratio of the auxiliary channel detection position, the touch detection position is calculated in a simple manner, and the response speed of the touch detection position is improved.

Further, due to the technical scheme of the embodiment of the invention, in one detection stage, the touch position detection is carried out on the first direction and the second direction simultaneously through the first main touch detection channel 11 and the second auxiliary touch detection channel 14 or through the second main touch detection channel 13 and the first auxiliary touch detection channel 12, and the weight ratio of the detection position of the main channel and the weight ratio of the detection position of the auxiliary channel are the same, so that the detection of the touch position can be completed in one touch detection stage, and the touch detection efficiency is improved; or in the first detection stage and the second detection stage, the touch detection position can be determined according to the main channel detection position and the auxiliary channel detection position, the touch position detection times of the touch driving pen are improved, and the touch position detection precision is improved.

Next, detailed descriptions are given of specific setting modes of the first main touch detection channel, the first auxiliary touch detection channel, the second main touch detection channel and the second auxiliary touch detection channel.

As a possible arrangement, first, a first main touch detection channel, a first auxiliary touch detection channel, a second main touch detection channel, and a second auxiliary touch detection channel are multiplexed by using mutual capacitive touch electrodes as an example.

With continued reference to fig. 10, the display panel 10 further includes a touch electrode 20, where the touch electrode 20 includes a mutual capacitive touch electrode; the mutual capacitance type touch electrode includes a plurality of touch driving electrodes 21 extending in a first direction (X direction as shown in the drawing) and a plurality of touch sensing electrodes 22 extending in a second direction (Y direction as shown in the drawing); the touch driving electrode 21 at least includes a first portion touch driving electrode 211 and a second portion touch driving electrode 212, and the touch sensing electrode 22 at least includes a first portion touch sensing electrode 221 and a second portion touch sensing electrode 222; the first part of touch driving electrodes 211 are multiplexed into a first main touch detection channel 11, and the second part of touch driving electrodes 212 are multiplexed into a first auxiliary touch detection channel 12; the second partial touch sensing electrode 221 is multiplexed into the second main touch detection channel 13, and the second partial touch sensing electrode 222 is multiplexed into the second auxiliary touch detection channel 14.

For example, fig. 10 illustrates that the touch driving electrode 21 includes a first portion touch driving electrode 211 and a second portion touch driving electrode 212, and the touch sensing electrode 22 includes a first portion touch sensing electrode 221 and a second portion touch sensing electrode 222. In the stage without the touch active pen, the touch driving electrode 21 and the touch sensing electrode 22 are used as conventional touch electrodes to detect the touch position and/or touch pressure. In the touch stage of the touch active pen, the first part of touch driving electrodes 211 are multiplexed into a first main touch detection channel 11, the second part of touch sensing electrodes 222 are multiplexed into a second auxiliary touch detection channel 14, and in the first detection stage, touch driving signals are received and the first touch detection signals are fed back to the driving chip 15; the second portion of the touch driving electrodes 212 are multiplexed into the first auxiliary touch detection channel 12, the first portion of the touch sensing electrodes 221 are multiplexed into the second main touch detection channel 13, the touch driving signals are received in the second detection stage and the second touch detection signals are fed back to the driving chip 15, and the driving chip 15 determines the main channel detection position and the auxiliary channel detection position according to the first touch detection signals and the second touch detection signals and determines the touch detection position according to the main channel detection position and the auxiliary channel detection position. The main touch detection channel and the auxiliary touch detection channel are multiplexed through the mutual capacitance type touch electrode, the main touch detection channel and the auxiliary touch detection channel are not required to be additionally arranged for the touch active pen, and the touch active pen touch position detection can be realized while the display panel is ensured to be simple in structure.

It should be noted that, in fig. 10, only the touch driving electrode 21 extends along the first direction, and the touch sensing electrode 22 extends along the second direction is illustrated as an example, it may be that the touch driving electrode 21 extends along the second direction, and the touch sensing electrode 22 extends along the first direction, and at this time, the first portion of the touch driving electrodes may be multiplexed into the second main touch detection channel, and the second portion of the touch driving electrodes may be multiplexed into the second auxiliary touch detection channel; the first portion of the touch sensing electrodes are multiplexed into a first main touch detection channel, and the second portion of the touch sensing electrodes are multiplexed into a first auxiliary touch detection channel, which is not limited in the embodiment of the present invention. Further, in fig. 10, only the different layer arrangement of the touch driving electrode 21 and the touch sensing electrode 22 is taken as an example for illustration, it is to be understood that the touch driving electrode 21 and the touch sensing electrode 22 may also be arranged in the same layer, for example, the touch driving electrode 21 includes a plurality of touch driving electrode blocks, two adjacent touch driving electrode blocks are electrically connected through a first bridge arranged in the same layer, the touch sensing electrode 22 includes a plurality of touch sensing electrode blocks, two adjacent touch sensing electrode blocks are electrically connected through a second bridge arranged in the different layer, and the specific arrangement mode of the mutual capacitive touch electrode is not limited in the embodiment of the present invention.

As a possible implementation manner, the following description will take the self-capacitance type touch electrode block multiplexing as the first main touch detection channel, the first auxiliary touch detection channel, the second main touch detection channel and the second auxiliary touch detection channel as an example.

Fig. 12 is a schematic structural view of another display panel provided in an embodiment of the present invention, fig. 13 is a schematic structural view of a first main touch detection channel and a second auxiliary touch detection channel in the display panel provided in fig. 12, fig. 14 is a schematic structural view of a second main touch detection channel and a first auxiliary touch detection channel in the display panel provided in fig. 12, and in combination with fig. 12, fig. 13 and fig. 14, the display panel 10 further includes a touch electrode 20, where the touch electrode 20 includes a plurality of self-capacitance touch electrode blocks 23, and the plurality of self-capacitance touch electrode blocks 23 are arranged in a matrix along a first direction (along an X direction shown in the figure) and a second direction (along a Y direction shown in the figure); in the first detection stage, the odd-numbered rows of self-contained touch electrode blocks 23 are multiplexed into a first main touch detection channel 11; the self-contained touch electrode blocks 23 of a plurality of even rows arranged along the second direction are multiplexed into a second auxiliary touch detection channel 14; or multiplexing the even number row self-contained touch electrode blocks into a first main touch detection channel; the self-contained touch electrode blocks of the odd rows are multiplexed into a second auxiliary touch detection channel (not shown) along the second direction; in the second detection stage, the odd-numbered rows of self-contained touch electrode blocks 23 are multiplexed into a second main touch detection channel 13; the self-contained touch electrode blocks 23 of a plurality of even columns arranged along the first direction are multiplexed into a first auxiliary touch detection channel 12; or multiplexing the self-contained touch electrode blocks of even columns into a second main touch detection channel; the self-contained touch electrode blocks of the odd columns arranged along the first direction are multiplexed into a first auxiliary touch detection channel (not shown in the figure).

As shown in fig. 12, 13 and 14, since each self-contained touch electrode block 23 is electrically connected to the driving chip 15 individually, and the plurality of self-contained touch electrode blocks 23 are arranged in a matrix along a first direction (X direction as shown in the drawing) and along a second direction (Y direction as shown in the drawing), there are a plurality of different arrangements when the self-contained touch electrode blocks 23 are multiplexed into the main touch detection channel and the auxiliary touch detection channel.

Taking fig. 13 as an example, in the first detection stage, the odd-numbered self-capacitive touch electrode blocks 23 are multiplexed into the first main touch detection channel 11; the self-contained touch electrode blocks 23 of a plurality of even rows arranged along the second direction are multiplexed into a second auxiliary touch detection channel 14; or multiplexing the even number row self-contained touch electrode blocks into a first main touch detection channel; the self-capacitance touch electrode blocks of the odd rows are multiplexed into a second auxiliary touch detection channel (not shown in the figure) along the second direction, and the first main touch detection channel 11 and the second auxiliary touch detection channel 14 receive the touch driving signal provided by the driving chip 15 and feed back the first touch detection signal to the driving chip 15. Taking 6*6 self-contained touch electrode blocks as an example shown in fig. 13, the first row of 6 self-contained touch electrode blocks 23 are multiplexed into one first main touch detection channel 11; the third row of 6 self-contained touch electrode blocks 23 are multiplexed into a first main touch detection channel 11; the fifth row of 6 self-contained touch electrode blocks 23 are multiplexed into a first main touch detection channel 11; the first self-contained touch electrode blocks in the second row, the first self-contained touch electrode blocks in the fourth row and the first self-contained touch electrode blocks in the sixth row are multiplexed into a second auxiliary touch detection channel 14; the second self-contained touch electrode blocks in the second row, the second self-contained touch electrode blocks in the fourth row and the second self-contained touch electrode blocks in the sixth row are multiplexed into a second auxiliary touch detection channel 14; the third self-contained touch electrode blocks in the second row, the third self-contained touch electrode blocks in the fourth row and the third self-contained touch electrode blocks in the sixth row are multiplexed into a second auxiliary touch detection channel 14 along the second direction; the second row of the fourth self-contained touch electrode blocks, the fourth row of the fourth self-contained touch electrode blocks and the sixth row of the fourth self-contained touch electrode blocks are multiplexed into a second auxiliary touch detection channel 14 along the second direction; the second row of fifth self-contained touch electrode blocks, the fourth row of fifth self-contained touch electrode blocks and the sixth row of fifth self-contained touch electrode blocks are multiplexed into a second auxiliary touch detection channel 14 along the second direction; the sixth self-contained touch electrode block of the second row, the sixth self-contained touch electrode block of the fourth row and the sixth self-contained touch electrode block of the sixth row are multiplexed into one second auxiliary touch detection channel 14.

Taking fig. 14 as an example, in the second detection stage, the odd-numbered row self-capacitive touch electrode blocks 23 are multiplexed into the second main touch detection channel 13; the self-contained touch electrode blocks 23 of a plurality of even columns arranged along the first direction are multiplexed into a first auxiliary touch detection channel 12; or multiplexing the self-contained touch electrode blocks of even columns into a second main touch detection channel; the self-capacitance touch electrode blocks arranged along the first direction and having a plurality of odd columns are multiplexed into a first auxiliary touch detection channel (not shown in the figure), and the second main touch detection channel 13 and the first auxiliary touch detection channel 12 receive the touch driving signal provided by the driving chip 15 and feed back the second touch detection signal to the driving chip 15. Taking 6*6 self-contained touch electrode blocks as an example shown in fig. 14, the first row of 6 self-contained touch electrode blocks 23 are multiplexed into one second main touch detection channel 13; the third row of 6 self-contained touch electrode blocks 23 are multiplexed into a second main touch detection channel 13; the fifth row of 6 self-contained touch electrode blocks 23 are multiplexed into a second main touch detection channel 13; the second self-contained touch electrode block of the first row, the fourth self-contained touch electrode block of the first row and the sixth self-contained touch electrode block of the first row are multiplexed into one first auxiliary touch detection channel 12 along the first direction; the second self-contained touch electrode block of the second row, the fourth self-contained touch electrode block of the second row and the sixth self-contained touch electrode block of the second row are multiplexed into a first auxiliary touch detection channel 12; the second self-contained touch electrode block in the third row, the fourth self-contained touch electrode block in the third row and the sixth self-contained touch electrode block in the third row are multiplexed into a first auxiliary touch detection channel 12; the second self-contained touch electrode block in the fourth row, the fourth self-contained touch electrode block in the fourth row and the sixth self-contained touch electrode block in the fourth row are multiplexed into a first auxiliary touch detection channel 12; the second self-contained touch electrode block of the fifth row, the fourth self-contained touch electrode block of the fifth row and the sixth self-contained touch electrode block of the fifth row are multiplexed into a first auxiliary touch detection channel 12 along the first direction; the second self-contained touch electrode block of the sixth row, the fourth self-contained touch electrode block of the sixth row and the sixth self-contained touch electrode block of the sixth row are multiplexed into one first auxiliary touch detection channel 12.

Further, the driving chip 15 determines a main channel detection position and an auxiliary channel detection position according to the first touch detection signal and the second touch detection signal, and determines a touch detection position according to the main channel detection position and the auxiliary channel detection position. The self-contained touch electrode block is multiplexed into the main touch detection channel and the auxiliary touch detection channel, the main touch detection channel and the auxiliary touch detection channel are not required to be additionally arranged for the touch active pen, and the touch active pen touch position detection can be realized while the display panel is ensured to be simple in structure.

On the basis of the above embodiment, since each touch detection channel is provided with a portion of the self-capacitance type touch electrode block 23, the touch detection in this direction can be realized, so that the first main touch detection channel 11 and the second main touch detection channel 13 can be further divided into two or more sub-touch detection channels, so that the touch detection accuracy can be further improved. Specifically, fig. 15 is a schematic structural diagram of another first main touch detection channel and a second auxiliary touch detection channel in the display panel provided in fig. 12, fig. 16 is a schematic structural diagram of another second main touch detection channel and a first auxiliary touch detection channel in the display panel provided in fig. 12, fig. 15 is an example in which the first main touch detection channel 11 further includes a first sub-main touch detection channel 111 and a second sub-main touch detection channel 112, and fig. 16 is an example in which the second main touch detection channel 13 further includes a third sub-main touch detection channel 131 and a fourth sub-main touch detection channel 132.

As shown in fig. 15 and 16, the first main touch detection channel 11 includes a first sub-main touch detection channel 111 and a second sub-main touch detection channel 112, and the first detection stage includes a first sub-stage and a second sub-stage; the second main touch detection channel 13 includes a third sub-main touch detection channel 131 and a fourth sub-main touch detection channel 132, and the second detection phase includes a third sub-phase and a fourth sub-phase; in the first sub-stage, the odd-row self-capacitance type touch electrode blocks or the even-row self-capacitance type touch electrode blocks are multiplexed into a first sub-main touch detection channel 111; in the second sub-stage, the even column self-capacitance type touch electrode blocks or the odd column self-capacitance type touch electrode blocks are multiplexed into a second sub-main touch detection channel 112; or in the first sub-stage, the odd-numbered row self-capacitance type touch electrode blocks or the even-numbered row self-capacitance type touch electrode blocks are multiplexed into a first sub-main touch detection channel; in the second sub-stage, the even column self-capacitance type touch electrode blocks or the odd column self-capacitance type touch electrode blocks are multiplexed into a second sub-main touch detection channel; in the third sub-stage, among the odd-numbered row self-capacitance type touch electrode blocks, the odd-numbered row self-capacitance type touch electrode blocks or the even-numbered row self-capacitance type touch electrode blocks are multiplexed into a third sub-main touch detection channel 131; in the fourth sub-stage, among the odd-numbered row self-contained touch electrode blocks, the even-numbered row self-contained touch electrode blocks or the odd-numbered row self-contained touch electrode blocks are multiplexed into a fourth sub-main touch detection channel 132; or in the third sub-stage, the odd-numbered row self-capacitance type touch electrode blocks or the even-numbered row self-capacitance type touch electrode blocks are multiplexed into a third sub-main touch detection channel; in the second sub-stage, the even row self-capacitance type touch electrode blocks or the odd row self-capacitance type touch electrode blocks are multiplexed into a second sub-main touch detection channel.

As shown in fig. 15, in the first sub-stage, the odd-column self-capacitive touch electrode blocks or the even-column self-capacitive touch electrode blocks are multiplexed into the first sub-main touch detection channel 111; in the second sub-stage, the even-numbered row self-capacitance type touch electrode blocks or the odd-numbered row self-capacitance type touch electrode blocks are multiplexed into the second sub-main touch detection channel 112, so that not only the first main touch detection channel extending along the first direction is determined, but also the first main touch detection channel can be divided in the second direction, and the touch position detection accuracy is further improved. For example, when the size of the self-capacitance type touch electrode block is 4mm by 4mm, in the first sub-stage, for example, the detection position of the touch active pen in the second direction may be determined to be 1.5mm, and in the second sub-stage, for example, the detection position of the touch active pen in the second direction may be determined to be 2.5mm, so that the touch position detection is further refined, and the touch position detection accuracy is improved. Taking 6*6 self-contained touch electrode blocks as an example shown in fig. 15, the first row of 6 self-contained touch electrode blocks 23 are multiplexed into one first main touch detection channel 11; further, a first, a third and a fifth of the 6 self-contained touch electrode blocks 23 in the first row may be used as a first sub-main touch detection channel 111, and a second, a fourth and a sixth may be used as a second sub-main touch detection channel 112; or may be the first, third and fifth of the first row of 6 self-contained touch electrode blocks 23 as the second sub-main touch detection channel 112, and the second, fourth and sixth as the first sub-main touch detection channel 111. The case of the other rows is similar to the case of the first row and will not be described again here.

Similarly, as shown in fig. 16, in the third sub-stage, among the odd-numbered row self-capacitance type touch electrode blocks, the odd-numbered row self-capacitance type touch electrode blocks or the even-numbered row self-capacitance type touch electrode blocks are multiplexed into a third sub-main touch detection channel 131; in the fourth sub-stage, even-numbered row self-capacitance type touch electrode blocks or odd-numbered row self-capacitance type touch electrode blocks are multiplexed into the second sub-main touch detection channel 112, so that not only the second main touch detection channel extending along the second direction is determined, but also the second main touch detection channel can be divided in the first direction, and the touch position detection accuracy is further improved. For example, when the size of the self-capacitance type touch electrode block is 4mm by 4mm, in the third sub-stage, for example, the detection position of the touch active pen in the first direction may be determined to be 1.5mm, and in the fourth sub-stage, for example, the detection position of the touch active pen in the first direction may be determined to be 2.5mm, so that the detection of the touch position is further refined, and the detection accuracy of the touch position is improved. Taking 6*6 self-contained touch electrode blocks as an example shown in fig. 16, the first row of 6 self-contained touch electrode blocks 23 are multiplexed into one second main touch detection channel 13; further, the first, third and fifth of the 6 self-contained touch electrode blocks 23 in the first column may be used as a third sub-main touch detection channel 131, and the second, fourth and sixth may be used as a fourth sub-main touch detection channel 132; or may be the first, third and fifth of the first row of 6 self-contained touch electrode blocks 23 as the fourth sub-main touch detection channel 132, and the second, fourth and sixth as the third sub-main touch detection channel 131. The other columns are similar to the first column and will not be described again here.

As a possible implementation manner, the following description will proceed by taking the self-capacitance type touch electrode block multiplexing as the first main touch detection channel, the first auxiliary touch detection channel, the second main touch detection channel and the second auxiliary touch detection channel as an example.

Fig. 17 is a schematic structural view of a first main touch detection channel and a second auxiliary touch detection channel in the display panel provided in fig. 12, fig. 18 is a schematic structural view of a second main touch detection channel and a first auxiliary touch detection channel in the display panel provided in fig. 12, and in combination with fig. 12, 17 and 18, the display panel 10 further includes a touch electrode 20, where the touch electrode 20 includes a plurality of self-contained touch electrode blocks 23, and the plurality of self-contained touch electrode blocks are arranged in a matrix along a first direction (along an X direction shown in the figure) and a second direction (along a Y direction shown in the figure); in a first detection stage, a plurality of odd-numbered rows of self-contained touch electrode blocks are multiplexed into a first main touch detection channel along a first direction; multiplexing the self-contained touch electrode blocks of the even number rows into a second auxiliary touch detection channel; or a plurality of even-numbered rows of self-contained touch electrode blocks are arranged along the first direction and multiplexed into a first main touch detection channel; the odd-numbered rows of self-contained touch electrode blocks are multiplexed into a second auxiliary touch detection channel; in the second detection stage, the odd-numbered row self-contained touch electrode blocks are multiplexed into a second main touch detection channel; a plurality of even-numbered rows of self-contained touch electrode blocks are multiplexed into a first auxiliary touch detection channel along a first direction; or multiplexing the self-contained touch electrode blocks of even columns into a second main touch detection channel; the plurality of odd-numbered rows of self-contained touch electrode blocks are multiplexed into a first auxiliary touch detection channel along a first direction.

As shown in fig. 12, 17 and 18, since each self-contained touch electrode block 23 is electrically connected to the driving chip 15 individually, and the plurality of self-contained touch electrode blocks 23 are arranged in a matrix along a first direction (X direction as shown in the drawing) and along a second direction (Y direction as shown in the drawing), there are a plurality of different arrangements when the self-contained touch electrode blocks 23 are multiplexed into the main touch detection channel and the auxiliary touch detection channel.

Taking fig. 17 as an example, in the first detection stage, a plurality of odd-numbered rows of self-contained touch electrode blocks arranged along the first direction are multiplexed into the first main touch detection channel 11; the self-contained touch electrode blocks of even columns are multiplexed into a second auxiliary touch detection channel 14; or a plurality of even-numbered rows of self-contained touch electrode blocks are arranged along the first direction and multiplexed into a first main touch detection channel; the odd-numbered self-capacitance type touch electrode blocks are multiplexed into a second auxiliary touch detection channel (not shown in the figure), and the first main touch detection channel 11 and the second auxiliary touch detection channel 14 receive touch driving signals provided by the driving chip 15 and feed back the first touch detection signals to the driving chip 15. Taking 6*6 self-contained touch electrode blocks as shown in fig. 17 as an example, the first self-contained touch electrode blocks in the first row, the third self-contained touch electrode blocks in the first row and the fifth self-contained touch electrode blocks in the first row are multiplexed into a first main touch detection channel 11 along the first direction; the first self-contained touch electrode blocks of the second row, the third self-contained touch electrode blocks of the second row and the fifth self-contained touch electrode blocks of the second row are multiplexed into a first main touch detection channel 11 along the first direction; the first self-contained touch electrode blocks in the third row, the third self-contained touch electrode blocks in the third row and the fifth self-contained touch electrode blocks in the third row are multiplexed into a first main touch detection channel 11 along the first direction; the first self-contained touch electrode blocks in the fourth row, the third self-contained touch electrode blocks in the fourth row and the fifth self-contained touch electrode blocks in the fourth row are multiplexed into a first main touch detection channel 11; the first self-contained touch electrode block of the fifth row, the third self-contained touch electrode block of the fifth row and the fifth self-contained touch electrode block of the fifth row are multiplexed into a first main touch detection channel 11 along the first direction; a sixth row of first self-contained touch electrode blocks and a sixth row of first self-contained touch electrode blocks are arranged along a first direction; the sixth row of the third self-contained touch electrode blocks and the sixth row of the fifth self-contained touch electrode blocks are multiplexed into a first main touch detection channel 11; the second row of 6 self-contained touch electrode blocks are multiplexed into a second auxiliary touch detection channel 14; the fourth row of 6 self-contained touch electrode blocks are multiplexed into a second auxiliary touch detection channel 14; the sixth row of 6 self-contained touch electrode blocks are multiplexed into one second auxiliary touch detection channel 14.

Taking fig. 18 as an example, in the second detection stage, the odd-numbered row self-capacitive touch electrode blocks are multiplexed into a second main touch detection channel 13; a plurality of even-numbered rows of self-contained touch electrode blocks arranged along a first direction are multiplexed into a second auxiliary touch detection channel 14; or multiplexing the self-contained touch electrode blocks of even columns into a second main touch detection channel; the plurality of odd-numbered rows of self-capacitance touch electrode blocks are multiplexed into a second auxiliary touch detection channel (not shown in the figure) along the first direction, and the second main touch detection channel 13 and the first auxiliary touch detection channel 12 receive the touch driving signal provided by the driving chip 15 and feed back the second touch detection signal to the driving chip 15. Taking 6*6 self-contained touch electrode blocks as an example shown in fig. 18, the first row of 6 self-contained touch electrode blocks 23 are multiplexed into one second main touch detection channel 13; the third row of 6 self-contained touch electrode blocks 23 are multiplexed into a second main touch detection channel 13; the fifth row of 6 self-contained touch electrode blocks 23 are multiplexed into a second main touch detection channel 13; the second self-contained touch electrode block of the first row, the fourth self-contained touch electrode block of the first row and the sixth self-contained touch electrode block of the first row are multiplexed into one first auxiliary touch detection channel 12 along the first direction; the second self-contained touch electrode block of the second row, the fourth self-contained touch electrode block of the second row and the sixth self-contained touch electrode block of the second row are multiplexed into a first auxiliary touch detection channel 12; the second self-contained touch electrode block in the third row, the fourth self-contained touch electrode block in the third row and the sixth self-contained touch electrode block in the third row are multiplexed into a first auxiliary touch detection channel 12; the second self-contained touch electrode block in the fourth row, the fourth self-contained touch electrode block in the fourth row and the sixth self-contained touch electrode block in the fourth row are multiplexed into a first auxiliary touch detection channel 12; the second self-contained touch electrode block of the fifth row, the fourth self-contained touch electrode block of the fifth row and the sixth self-contained touch electrode block of the fifth row are multiplexed into a first auxiliary touch detection channel 12 along the first direction; the second self-contained touch electrode block of the sixth row, the fourth self-contained touch electrode block of the sixth row and the sixth self-contained touch electrode block of the sixth row are multiplexed into one first auxiliary touch detection channel 12.

On the basis of the above embodiment, since each touch detection channel is provided with a portion of the self-capacitance type touch electrode block 23, the touch detection in this direction can be realized, so that the second auxiliary touch detection channel 14 and the second main touch detection channel 13 can be further divided into two or more sub-touch detection channels, so that the touch detection accuracy can be further improved. Specifically, fig. 19 is a schematic structural diagram of a first main touch detection channel and a second auxiliary touch detection channel in the display panel provided in fig. 12, fig. 20 is a schematic structural diagram of a second main touch detection channel and a first auxiliary touch detection channel in the display panel provided in fig. 12, fig. 19 is an example in which the second auxiliary touch detection channel 14 further includes a first sub-auxiliary touch detection channel 141 and a second sub-auxiliary touch detection channel 142, and fig. 20 is an example in which the second main touch detection channel 13 further includes a third sub-main touch detection channel 131 and a fourth sub-main touch detection channel 132.

As shown in fig. 19 and 20, the second auxiliary touch detection channel 14 includes at least a first sub-auxiliary touch detection channel 141 and a second sub-auxiliary touch detection channel 142, and the first detection stage includes at least a fifth sub-stage and a sixth sub-stage; the second main touch detection channel 13 at least comprises a third sub-main touch detection channel 131 and a fourth sub-main touch detection channel 132, and the second detection stage at least comprises a seventh sub-stage and an eighth sub-stage; in the fifth sub-stage, the odd-numbered row self-capacitive touch electrode blocks or the even-numbered row self-capacitive touch electrode blocks are multiplexed into the first sub-auxiliary touch detection channel 141; in the sixth sub-stage, the even row self-capacitive touch electrode blocks or the odd row self-capacitive touch electrode blocks are multiplexed into the second sub-auxiliary touch detection channel 142; or in the fifth sub-stage, the odd-numbered row self-capacitance type touch electrode blocks or the even-numbered row self-capacitance type touch electrode blocks are multiplexed into a first sub-auxiliary touch detection channel; in the sixth sub-stage, the even-row self-capacitance type touch electrode blocks or the odd-row self-capacitance type touch electrode blocks in the odd-row self-capacitance type touch electrode blocks are multiplexed into a second sub-auxiliary touch detection channel; in the seventh sub-stage, the odd-numbered row self-capacitive touch electrode blocks or the even-numbered row self-capacitive touch electrode blocks are multiplexed into the third sub-main touch detection channel 131; in the eighth sub-stage, among the odd-numbered row self-capacitive touch electrode blocks, the even-numbered row self-capacitive touch electrode blocks or the odd-numbered row self-capacitive touch electrode blocks are multiplexed into a fourth sub-main touch detection channel 132; or in the seventh sub-stage, the odd-numbered row self-capacitance type touch electrode blocks or the even-numbered row self-capacitance type touch electrode blocks are multiplexed into a third sub-main touch detection channel; in the eighth sub-stage, even row self-capacitance type touch electrode blocks or odd row self-capacitance type touch electrode blocks are multiplexed into a fourth sub-main touch detection channel.

As shown in fig. 19, in the fifth sub-stage, the odd-numbered row self-capacitive touch electrode blocks or the even-numbered row self-capacitive touch electrode blocks are multiplexed into the first sub-auxiliary touch detection channel 141; in the sixth sub-stage, the even-row self-capacitance type touch electrode blocks or the odd-row self-capacitance type touch electrode blocks are multiplexed into the second sub-auxiliary touch detection channel 142, so that not only the second auxiliary touch detection channel extending along the second direction is determined, but also the second auxiliary touch detection channel can be divided in the first direction, and the touch position detection accuracy is further improved. For example, when the size of the self-capacitance type touch electrode block is 4mm by 4mm, in the fifth sub-stage, for example, the detection position of the touch active pen in the first direction may be determined to be 1.5mm, and in the sixth sub-stage, for example, the detection position of the touch active pen in the first direction may be determined to be 2.5mm, so that the detection of the touch position is further refined, and the detection accuracy of the touch position is improved. Taking 6*6 self-contained touch electrode blocks as an example shown in fig. 19, the second row of 6 self-contained touch electrode blocks 23 are multiplexed into one second auxiliary touch detection channel 14; further, the first, third and fifth of the 6 self-contained touch electrode blocks 23 in the second row may be used as the first sub-auxiliary touch detection channel 141, and the second, fourth and sixth may be used as the second sub-auxiliary touch detection channel 142; or may be the first, third and fifth of the second column of 6 self-contained touch electrode blocks 23 as the second sub-auxiliary touch detection channel 142, and the second, fourth and sixth as the first sub-auxiliary touch detection channel 141. The other columns are similar to the second column and will not be described again here.

Similarly, as shown in fig. 20, in the seventh sub-stage, among the odd-column self-capacitance type touch electrode blocks, the odd-row self-capacitance type touch electrode blocks or the even-row self-capacitance type touch electrode blocks are multiplexed into the third sub-main touch detection channel 131; in the eighth sub-stage, the even-numbered row self-capacitance type touch electrode blocks or the odd-numbered row self-capacitance type touch electrode blocks are multiplexed into the second sub-main touch detection channel 112, so that not only the second main touch detection channel extending along the second direction is determined, but also the second main touch detection channel can be divided in the first direction, and the touch position detection accuracy is further improved. For example, when the size of the self-capacitance type touch electrode block is 4mm by 4mm, in the seventh sub-stage, for example, the detection position of the touch active pen in the first direction may be determined to be 1.5mm, and in the eighth sub-stage, for example, the detection position of the touch active pen in the first direction may be determined to be 2.5mm, so that the detection of the touch position is further refined, and the detection accuracy of the touch position is improved. Taking 6*6 self-contained touch electrode blocks as an example shown in fig. 20, the first row of 6 self-contained touch electrode blocks 23 are multiplexed into one second main touch detection channel 13; further, the first, third and fifth of the 6 self-contained touch electrode blocks 23 in the first column may be used as a third sub-main touch detection channel 131, and the second, fourth and sixth may be used as a fourth sub-main touch detection channel 132; or may be the first, third and fifth of the first row of 6 self-contained touch electrode blocks 23 as the fourth sub-main touch detection channel 132, and the second, fourth and sixth as the third sub-main touch detection channel 131. The other columns are similar to the first column and will not be described again here.

As a possible implementation manner, the following description will take the multiplexing of the self-capacitance type touch electrode block as the first main touch detection channel and the second main touch detection channel, the multiplexing of the scanning signal line as the first auxiliary touch detection channel, and the multiplexing of the data signal line as the second auxiliary touch detection channel as an example.

Fig. 21 is a schematic structural view of a display panel according to another embodiment of the present invention, and as shown in fig. 21, the display panel 10 further includes a scan signal line 16 extending along a first direction (X direction as shown in the figure) and a data signal line 17 extending along a second direction (Y direction as shown in the figure); at least part of the scanning signal lines 16 are multiplexed into the first auxiliary touch detection channel 12, and at least part of the data signal lines 17 are multiplexed into the second auxiliary touch detection channel 14.

As shown in fig. 21, the display panel 10 further includes a touch electrode 20, where the touch electrode 20 may be a self-capacitance touch electrode block or a mutual-capacitance touch electrode, and the scheme of multiplexing the self-capacitance touch electrode block as a main touch detection channel or multiplexing the mutual-capacitance touch electrode as a main touch detection channel is detailed in the above embodiment, which is not described herein, and fig. 21 only uses the self-capacitance touch electrode block 23 as the main touch detection channel for illustration. The difference between the present embodiment and the above embodiment is that at least part of the scanning signal lines 16 are multiplexed into the first auxiliary touch detection channel 12, at least part of the data signal lines 17 are multiplexed into the second auxiliary touch detection channel 14, and no auxiliary touch detection channel is required to be separately added for the touch active pen, so that the touch position detection of the touch active pen can be realized, and meanwhile, the display panel structure is ensured to be simple.

It should be noted that, in general, the display pixels have a higher division density than the self-capacitance touch electrode block, so that the number of first main touch detection channels extending along the first direction is smaller than the number of scanning signal lines 16, and the number of second main touch detection channels extending along the second direction is smaller than the number of data signal lines 17, so that a portion of the scanning signal lines 16 may be multiplexed into the first auxiliary touch detection channels 12 and a portion of the data signal lines 17 may be multiplexed into the second auxiliary touch detection channels 14

Note that, since the extending directions of the data signal line 17 and the touch signal line may be the same, the touch signal line is not shown in fig. 21.

Fig. 22 is a schematic structural diagram of another display panel according to an embodiment of the present invention, where, as shown in fig. 22, the display panel 10 further includes a common electrode 24 and a touch electrode 20, and the common electrode 24 is multiplexed into the touch electrode 20; the touch electrode 20 includes a hollowed portion 201, and in the light emitting direction of the display panel, the hollowed portion 201 at least partially overlaps the scan signal line 16 and the data signal line 17.

For example, at least part of the scanning signal lines 16 are multiplexed into the first auxiliary touch detection channel 12, at least part of the data signal lines 17 are multiplexed into the second auxiliary touch detection channel 14, and the touch electrode 20 is disposed to include a hollowed portion 201, at least part of the scanning signal lines 16 and the data signal lines 17 are exposed through the hollowed portion 201, so that more touch signals of the touch active pen are received by the scanning signal lines 16 and the data signal lines 17, and the touch position detection accuracy is improved.

Based on the same inventive concept, the embodiment of the present invention also provides a display device including any one of the display panels provided in the above embodiments. Illustratively, referring to fig. 23, the display device 100 includes a display panel 10. Therefore, the display device also has the advantages of the display panel in the above embodiment, and the same points can be understood by referring to the explanation of the display panel, and the description thereof will not be repeated.

The display device 100 provided in the embodiment of the present invention may be a mobile phone as shown in fig. 23, or any electronic product with a display function, including but not limited to the following categories: television, notebook computer, desktop display, tablet computer, digital camera, smart bracelet, smart glasses, vehicle-mounted display, industrial control equipment, medical display screen, touch interactive terminal, etc., which is not particularly limited by the embodiment of the invention.

Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.

Claims

1. A display panel, comprising:

The driving chip is used for determining a main channel detection position and an auxiliary channel detection position according to the first touch detection signal and the second touch detection signal, and determining a touch detection position according to the main channel detection position and the auxiliary channel detection position;

the driving chip is used for determining a main channel detection position and an auxiliary channel detection position according to the first touch detection signal and the second touch detection signal, and comprises;

the driving chip determines a first touch position according to the first touch detection signal and determines a second touch position according to the second touch detection signal;

Along the second direction, the extension width of the first main touch detection channel is larger than that of the first auxiliary touch detection channel; and/or, along the first direction, the extension width of the second main touch detection channel is greater than the extension width of the second auxiliary touch detection channel.

2. The display panel of claim 1, wherein the first auxiliary touch detection channels are disposed between two adjacent first main touch detection channels along the second direction;

Along the first direction, the second auxiliary touch detection channels are arranged between two adjacent second main touch detection channels.

3. The display panel of claim 1, wherein the driving chip is configured to determine a touch detection position according to the main channel detection position and the auxiliary channel detection position, and wherein a weight ratio of the main channel detection position is smaller than a weight ratio of the auxiliary channel detection position.

4. The display panel of claim 2, wherein an extension width of the first main touch detection channel is equal to an extension width of the first auxiliary touch detection channel in the second direction;

Along the first direction, the extension width of the second main touch detection channel is equal to the extension width of the second auxiliary touch detection channel.

5. The display panel of claim 1, further comprising a touch electrode comprising a mutual capacitive touch electrode;

The mutual capacitance type touch electrode comprises a plurality of touch driving electrodes extending along the first direction and a plurality of touch sensing electrodes extending along the second direction; the touch driving electrode at least comprises a first part of touch driving electrode and a second part of touch driving electrode, and the touch sensing electrode at least comprises a first part of touch sensing electrode and a second part of touch sensing electrode;

The first part of touch driving electrodes are multiplexed into the first main touch detection channel, and the second part of touch driving electrodes are multiplexed into the first auxiliary touch detection channel;

The second part of touch sensing electrodes are multiplexed into the second main touch detection channel, and the second part of touch sensing electrodes are multiplexed into the second auxiliary touch detection channel.

6. The display panel of claim 1, further comprising a touch electrode comprising a plurality of self-contained touch electrode tiles, the plurality of self-contained touch electrode tiles being arranged in a matrix along the first direction and the second direction;

In the first detection stage, the self-contained touch electrode blocks in odd rows are multiplexed into the first main touch detection channel; the self-contained touch electrode blocks of a plurality of even rows are multiplexed into the second auxiliary touch detection channel along the second direction; or even lines of the self-contained touch electrode blocks are multiplexed into the first main touch detection channel; the self-contained touch electrode blocks of a plurality of odd rows are multiplexed into the second auxiliary touch detection channel along the second direction;

In the second detection stage, the self-contained touch electrode blocks in odd columns are multiplexed into the second main touch detection channel; the self-contained touch electrode blocks of a plurality of even columns are multiplexed into the first auxiliary touch detection channel along a first direction; or multiplexing the self-contained touch electrode blocks in even columns into the second main touch detection channel; the self-contained touch electrode blocks of the odd columns are multiplexed into the first auxiliary touch detection channel along the first direction.

7. The display panel of claim 6, wherein the first main touch detection channel comprises at least a first sub-main touch detection channel and a second sub-main touch detection channel, the first detection stage comprising at least a first sub-stage and a second sub-stage;

The second main touch detection channel at least comprises a third sub-main touch detection channel and a fourth sub-main touch detection channel, and the second detection stage at least comprises a third sub-stage and a fourth sub-stage;

In the first sub-stage, in the self-capacitance type touch electrode blocks in odd rows, the self-capacitance type touch electrode blocks in odd columns or the self-capacitance type touch electrode blocks in even columns are multiplexed into the first sub-main touch detection channel; in the second sub-stage, in the self-capacitance type touch electrode blocks in odd rows, the self-capacitance type touch electrode blocks in even columns or the self-capacitance type touch electrode blocks in odd columns are multiplexed into the second sub-main touch detection channel;

Or in the first sub-stage, the self-contained touch electrode blocks in even rows and the self-contained touch electrode blocks in odd columns or the self-contained touch electrode blocks in even columns are multiplexed into the first sub-main touch detection channel; in the second sub-stage, even columns of the self-contained touch electrode blocks are multiplexed into the second sub-main touch detection channel;

In the third sub-stage, in the odd columns of the self-capacitance type touch electrode blocks, the self-capacitance type touch electrode blocks in odd rows or the self-capacitance type touch electrode blocks in even rows are multiplexed into the third sub-main touch detection channel; in the fourth sub-stage, in the odd columns of the self-capacitance type touch electrode blocks, the even rows of the self-capacitance type touch electrode blocks or the odd rows of the self-capacitance type touch electrode blocks are multiplexed into the second sub-main touch detection channel;

Or in the third sub-stage, the self-contained touch electrode blocks in even columns are multiplexed into the third sub-main touch detection channel by the self-contained touch electrode blocks in odd rows or the self-contained touch electrode blocks in even rows; in the second sub-stage, even rows of the self-capacitance type touch electrode blocks or odd rows of the self-capacitance type touch electrode blocks are multiplexed into the second sub-main touch detection channel.

8. The display panel of claim 1, further comprising a touch electrode comprising a plurality of self-contained touch electrode tiles, the plurality of self-contained touch electrode tiles being arranged in a matrix along the first direction and the second direction;

In the first detection stage, a plurality of odd columns of self-contained touch electrode blocks arranged along the first direction are multiplexed into the first main touch detection channel; the self-contained touch electrode blocks in even columns are multiplexed into the second auxiliary touch detection channel; or the self-contained touch electrode blocks in a plurality of even columns are multiplexed into the first main touch detection channel, wherein the self-contained touch electrode blocks are arranged along the first direction; the self-contained touch electrode blocks in odd columns are multiplexed into the second auxiliary touch detection channel;

In the second detection stage, the self-contained touch electrode blocks in odd columns are multiplexed into the second main touch detection channel; the self-contained touch electrode blocks in a plurality of even columns are multiplexed into the first auxiliary touch detection channel along the first direction; or multiplexing the self-contained touch electrode blocks in even columns into the second main touch detection channel; and the self-contained touch electrode blocks in a plurality of odd columns are multiplexed into the first auxiliary touch detection channel along the first direction.

9. The display panel of claim 8, wherein the second auxiliary touch detection channel comprises at least a first sub-auxiliary touch detection channel and a second sub-auxiliary touch detection channel, the first detection stage comprises at least a fifth sub-stage and a sixth sub-stage;

the second main touch detection channel at least comprises a third sub-main touch detection channel and a fourth sub-main touch detection channel, and the second detection stage at least comprises a seventh sub-stage and an eighth sub-stage;

In the fifth sub-stage, in the self-capacitance type touch electrode blocks in even columns, the self-capacitance type touch electrode blocks in odd rows or the self-capacitance type touch electrode blocks in even rows are multiplexed into the first sub-auxiliary touch detection channel; in the sixth sub-stage, even rows of the self-capacitance type touch electrode blocks or odd rows of the self-capacitance type touch electrode blocks are multiplexed into the second sub-auxiliary touch detection channel;

or alternatively

In the fifth sub-stage, in the odd columns of the self-capacitance type touch electrode blocks, the self-capacitance type touch electrode blocks in odd rows or the self-capacitance type touch electrode blocks in even rows are multiplexed into the first sub-auxiliary touch detection channel; in the sixth sub-stage, in the odd columns of the self-capacitance type touch electrode blocks, the even rows of the self-capacitance type touch electrode blocks or the odd rows of the self-capacitance type touch electrode blocks are multiplexed into the second sub-auxiliary touch detection channel;

In the seventh sub-stage, in the odd columns of the self-capacitance type touch electrode blocks, the odd rows of the self-capacitance type touch electrode blocks or the even rows of the self-capacitance type touch electrode blocks are multiplexed into the third sub-main touch detection channel; in the eighth sub-stage, in the odd columns of the self-capacitance type touch electrode blocks, the even rows of the self-capacitance type touch electrode blocks or the odd rows of the self-capacitance type touch electrode blocks are multiplexed into the fourth sub-main touch detection channel;

or alternatively

In the seventh sub-stage, in the self-capacitance type touch electrode blocks in even columns, the self-capacitance type touch electrode blocks in odd rows or the self-capacitance type touch electrode blocks in even rows are multiplexed into the third sub-main touch detection channel; in the eighth sub-stage, even rows of the self-capacitance type touch electrode blocks or odd rows of the self-capacitance type touch electrode blocks are multiplexed into the fourth sub-main touch detection channel.

10. The display panel according to claim 1, further comprising a scan signal line extending in the first direction and a data signal line extending in the second direction;

At least part of the scanning signal lines are multiplexed into the first auxiliary touch detection channel, and at least part of the data signal lines are multiplexed into the second auxiliary touch detection channel.

11. The display panel of claim 10, further comprising a common electrode and a touch electrode, the common electrode multiplexed as the touch electrode;

the touch electrode comprises a hollowed-out portion, and the hollowed-out portion at least partially overlaps the scanning signal line and the data signal line in the light emitting direction of the display panel.

12. A display device comprising the display panel of any one of claims 1-11.