CN112631457A

CN112631457A - Display panel and display device

Info

Publication number: CN112631457A
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: 2021-04-09
Anticipated expiration: 2040-12-21

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 which 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 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; in a first detection stage, a first main touch detection channel and a second auxiliary touch channel feed back a first touch detection signal to a driving chip; in a second detection stage, a second main touch detection channel and a 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, and further determining the touch detection positions, so that high touch detection accuracy is guaranteed.

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 completed by touching the screen, and a stylus is a device that is in contact with the screen to realize user operations.

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

The existing active pen scanning scheme is to scan all touch channels in the X direction first, and then scan touch channels in the Y direction, and the processor calculates the current touch position of the active pen according to the position information of the active pen signal on the X and Y channels. However, the touch position determined by the active pen scanning scheme in the prior art is different from the actual position, and the active pen specification required by the 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 touch positions are determined through a first main touch detection channel, a second main touch detection channel, a first auxiliary touch detection channel and a second auxiliary touch detection channel, so that 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 is intersected 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;

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

in a second detection stage, the second main touch detection channel and the first auxiliary touch detection channel receive the touch driving signal provided by the driving chip and 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, 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 device, which 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 display panel is additionally provided with the plurality of first auxiliary touch detection channels and the plurality of second auxiliary touch detection channels, the extension directions of the first auxiliary touch detection channels and the first main touch detection channels are the same, and the extension 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 have different extension directions, 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 have different extension directions, 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 a touch detection position is further determined according to the main channel detection position and the auxiliary channel detection position, so that the high touch position detection precision is ensured, the active pen touch performance is improved, and the user experience is improved.

Drawings

FIG. 1 is a schematic structural diagram of a primary 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 primary touch detection channel and a second secondary touch detection channel in the display panel provided in FIG. 3;

FIG. 5 is a schematic structural diagram of a second primary 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 shown in FIG. 3;

fig. 8 is a schematic diagram illustrating a comparison between touch detection positions corresponding to the technical solution provided in the embodiment of the present invention and the prior art;

FIG. 9 is a schematic diagram of another touch detection position corresponding to the display panel shown 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 shown 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 structural diagram of a first primary touch detection channel and a second secondary touch detection channel in the display panel provided in FIG. 12;

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

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

FIG. 16 is a schematic structural diagram of another second primary touch detection channel and a first secondary touch detection channel in the display panel shown in FIG. 12;

FIG. 17 is a schematic structural diagram of a first primary touch detection channel and a second secondary touch detection channel of the display panel shown in FIG. 12;

FIG. 18 is a schematic structural diagram of a second primary touch detection channel and a first secondary touch detection channel in the display panel shown in FIG. 12;

FIG. 19 is a schematic structural diagram of still another first primary touch detection channel and a second secondary touch detection channel in the display panel provided in FIG. 12;

FIG. 20 is a schematic structural diagram of still another second primary touch detection channel and a first auxiliary touch detection channel in the display panel shown in FIG. 12;

FIG. 21 is a schematic structural diagram of another display panel according to an embodiment of the present invention;

fig. 22 is a schematic structural diagram of another display panel according to an embodiment of the invention;

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

Detailed Description

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

Fig. 1 is a schematic structural diagram of a display panel in the related art, fig. 2 is a schematic diagram of a touch detection position corresponding to fig. 1, and with reference to fig. 1 and fig. 2, the display panel includes a plurality of first main touch detection channels extending along a first direction (e.g., an X direction shown in the figure), which are X0 '-X4'; the plurality of second primary touch detection channels extending along the second direction (Y direction shown in the figure) are Y0 '-Y4'. In a first detection stage, the first primary touch detection channel receives the touch driving signal and determines that the touch position of the touch active pen is position1 based on the touch trajectory of the touch active pen; in the second detection stage, the second main touch detection channel receives the touch driving signal and determines that the touch position of the touch active pen is position2 based on the touch trajectory of the touch active pen, and the driving chip determines the touch detection position1-2 based on the touch position1 and the touch position 2. According to fig. 1 and 2, the position1-2 has a large difference from the actual touch trajectory of the touch-enabled stylus, resulting in a touch position detection accuracy. The inventor researches and discovers that when the drawing speed of the touch active pen is high, the tracing performance of the touch active pen is poor, for example, when the touch active pen draws at about 15cm/s, the position deviation is more than 0.2mm, and the use experience of a user is influenced.

In view of the foregoing technical problems, an embodiment of the present invention provides a display panel and a display device, where the display panel includes a plurality of first primary 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 is intersected with the first direction and is parallel to the light-emitting surface of the display panel; the driving chip is used for driving signals to be 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 through channels respectively; in a first detection stage, a first main touch detection channel and a second auxiliary touch detection channel receive a touch driving signal provided by a driving chip and feed back a first touch detection signal to the driving chip; in a second detection stage, the second main touch detection channel and the first auxiliary touch detection channel receive the touch driving signal provided by the driving chip and feed back the 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, and determining the touch detection position according to the main channel detection position and the auxiliary channel detection position. By adopting the technical scheme, 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 extension directions of the first auxiliary touch detection channels and the first main touch detection channels are the same, and the extension 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 have different extension directions, 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 have different extension directions, 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 a touch detection position is further determined according to the main channel detection position and the auxiliary channel detection position, so that the high touch position detection precision is ensured, the active pen touch performance is improved, and the user experience is improved.

The above is the core idea of the embodiment of the present invention, and the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative work belong to the protection scope of the present invention.

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 primary touch detection channel and a second auxiliary touch detection channel in the display panel provided in fig. 3, fig. 5 is a schematic structural diagram of a second primary touch detection channel and a first auxiliary touch detection channel in the display panel provided in fig. 3, fig. 6 is a schematic structural diagram of an active pen trigger enable signal, fig. 7 is a schematic structural diagram of a touch detection position corresponding to the display panel provided in fig. 3, and in combination with fig. 3-7, the display panel 10 according to an embodiment of the present invention includes a plurality of first primary touch detection channels 11 and a plurality of first auxiliary touch detection channels 12 extending along a first direction (e.g., the X direction shown in the figures); a plurality of second primary touch detection channels 13 and a plurality of second auxiliary touch detection channels 14 extending in a second direction; the second direction intersects the first direction and is parallel to the light emitting 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 a first detection stage Slot 1, a first main touch detection channel 11 and a second auxiliary touch detection channel 14 receive a touch driving signal provided by a 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 primary 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.

Illustratively, as shown in fig. 2, the display panel 10 includes a first primary touch detection channel 11, a first auxiliary touch detection channel 12, a second primary 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 shown in the figure), the second auxiliary touch detection channel 14 is along a second direction (Y direction shown in the figure), and in a first detection phase 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, receives 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 a second direction (Y direction shown in the figure), the first auxiliary touch detection channel 12 is along a first direction (X direction shown in the figure), and in the second detection phase Slot 2, the driving chip 15 provides a touch driving signal to the second main touch detection channel 13 and the first auxiliary touch detection channel 12 and receives a second touch detection signal fed back by the second main touch detection channel 13 and the first auxiliary touch detection channel 12, and determines a second touch position2(X2, Y2) based on the second touch detection signal. Further, the driving chip 15 is further configured to determine a main channel detection position3(x2, y1) and an auxiliary channel detection position4(x1, y2) according to the first touch position1(x1, y1) and the second touch position2(x2, y2), and determine a touch detection position (x, y) according to the main channel detection position3(x2, y1) and the auxiliary channel detection position4(x1, y 2). As can be known from a comparison between fig. 2 and fig. 7, the touch detection position (x, y) determined by the display panel according to the embodiment of the present invention is closer to the actual trajectory of the touch-sensitive active pen than the touch detection position1-2 determined by the prior art, so as to improve the detection accuracy of the touch-sensitive active pen, ensure strong tracking of the touch-sensitive active pen, and improve the use experience of the touch-sensitive active pen.

Next, a difference between the touch detection position obtained by the technical solution provided by the embodiment of the present invention and the touch detection position obtained by the existing technical solution is described in a specific implementation manner.

Fig. 8 is a schematic diagram comparing the touch detection positions corresponding to the technical solution provided by the embodiment of the present invention and the prior art, as shown in fig. 8, taking the motion of the touch-activated pen in the fourth quadrant as an example, the paths OA, OB, OC, OD, and OE represent the partial motion trajectory of the touch-activated pen in the fourth quadrant; under the motion trajectories of the OA, OB, OC, OD and OE, the touch detection positions are obtained by scanning with the existing touch active pen and fitting with an algorithm, and the touch reporting positions are on the X axis regardless of the motion of the active pen in the fourth quadrant. The curve a is a touch detection position curve fitted by the scanning and algorithm provided by the embodiment of the invention when the active pen moves in the fourth quadrant, and the

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 motion trajectories of the OA, OB, OC, OD and OE, respectively. Compared with the prior art, the coordinate position fitted by the technical scheme of the embodiment of the invention is closer to the actual motion situation in the Y direction along with the change of the motion track of the touch active pen, and the touch position detection precision is higher.

It can be understood that, with reference to fig. 6, the first detection stage Slot 1 and the second detection stage Slot 2 mentioned in the embodiment of the present invention are two adjacent enabling stages corresponding to the touch timing of the active stylus.

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 primary touch detection channel 11 and the second primary touch detection channel 13 may be touch electrodes, and when there is no touch active pen to perform touch, the touch electrodes may be conventional touch electrodes to perform detection of a touch position and/or a touch pressure; when the touch active pen performs touch control, 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 channel may be mutual capacitance type touch electrodes, for example, the touch driving electrode extending along the first direction serves as the first main touch detection channel, and the touch sensing electrode extending along the second direction or the second main touch detection channel, or the touch sensing electrode extending along the first direction serves as the first main touch detection channel, and the touch driving electrode extending along the second direction or the second main touch detection channel. In addition, the touch driving electrodes and the touch sensing electrodes may be disposed in the same layer or in different layers, which is not limited in the embodiments of the present invention. Further, the touch electrode multiplexed as the main touch detection channel may be a self-contained touch electrode, for example, a plurality of self-contained touch electrode blocks arranged along a first direction are used as the first main touch detection channel, and a plurality of self-contained touch electrode blocks arranged along a 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, may also be reused as auxiliary touch detection channels for a part of touch electrodes, and may also be reused as auxiliary touch detection channels for other structures in the display panel.

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 description will be given by taking the vertical direction as an example. 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 which is horizontally formed with a preset included angle, and the second direction is located in a direction which is vertically formed with the preset included angle.

To sum up, in the display panel provided in the embodiment of the present invention, a plurality of first auxiliary touch detection channels and a plurality of second auxiliary touch detection channels are additionally disposed in the display panel, and the extension directions of the first auxiliary touch detection channels and the first main touch detection channel are the same, and the extension directions of the second auxiliary touch detection channels and the second main touch detection channel 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 have different extension directions, 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 have different extension directions, 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 a touch detection position is further determined according to the main channel detection position and the auxiliary channel detection position, so that the high touch position detection precision is ensured, the active pen touch performance is improved, and the user experience is improved.

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

On the basis of the foregoing embodiments, as shown in fig. 3, 4 and 5, along the second direction (Y direction shown in the figure), the extension width of the first primary touch detection channel 11 is greater than that of the first auxiliary touch detection channel 12; and/or, in the first direction (X direction shown in the figure), 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, in the embodiment of the present invention, the extension width of the first main touch detection channel 11 is greater than the extension width of the first auxiliary touch detection channel 12 in the second direction (Y direction shown in the figure), and meanwhile, in the first direction (X direction shown in the figure), 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.

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

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

On the basis of the above embodiment, when the driving chip is used for determining the touch detection position according to the main channel detection position and the auxiliary channel detection position, the weight ratio of the main channel detection position is smaller than that 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 will also be 1/4-1/2 of the signal amount detected by the main touch detection channel, and thus the detection sensitivity of the auxiliary touch detection channel is poor. Therefore, when the driving chip is used for determining the touch detection position according to the main channel detection position and the auxiliary channel detection position, the weight ratio of the main channel detection position is smaller than that of the auxiliary channel detection position, and the touch detection position determined according to the main channel detection position and the auxiliary channel detection position is closer to the actual touch position, so that the touch 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, and the detection position corresponding to fig. 9 is different from the detection position corresponding to fig. 7 in 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 ratio of the main channel detection position is smaller than that of the auxiliary channel detection position, so that the touch detection position is ensured to be close to the actual touch position, and the touch detection precision is improved.

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

Illustratively, when the extension width of the first main touch detection channel 11 is equal to the extension width of the first auxiliary touch detection channel 12 along the second direction, and 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 along the first direction (X direction shown in the figure), the weight ratio of the main channel detection position is the same as that of the auxiliary channel detection position, the touch detection position is simple to calculate, and the response speed of the touch detection position is improved.

Furthermore, according to the technical scheme of the embodiment of the present invention, in a detection stage, the touch position detection is performed in the first direction and the second direction 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 to the detection position of the auxiliary channel is higher, so that the detection of the touch position can be completed in a 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, so that the touch active pen touch position detection frequency is increased, and the touch position detection precision is improved.

Next, specific setting manners of the first primary touch detection channel, the first auxiliary touch detection channel, the second primary touch detection channel, and the second auxiliary touch detection channel are described in detail.

As a possible configuration, first, the mutual capacitance type touch electrode is reused as 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.

As shown in fig. 10, the display panel 10 further includes a touch electrode 20, and the touch electrode 20 includes a mutual capacitance type touch electrode; the mutual capacitance touch electrode includes a plurality of touch driving electrodes 21 extending along a first direction (X direction shown in the figure) and a plurality of touch sensing electrodes 22 extending along a second direction (Y direction shown in the figure); the touch driving electrodes 21 at least comprise a first part of touch driving electrodes 211 and a second part of touch driving electrodes 212, and the touch sensing electrodes 22 at least comprise a first part of touch sensing electrodes 221 and a second part of touch sensing electrodes 222; the first part of the touch driving electrodes 211 is multiplexed as a first main touch detection channel 11, and the second part of the touch driving electrodes 212 is multiplexed as a first auxiliary touch detection channel 12; the second portion of the touch sensing electrodes 221 are multiplexed as a second primary touch detection channel 13, and the second portion of the touch sensing electrodes 222 are multiplexed as a second auxiliary touch detection channel 14.

For example, fig. 10 illustrates that the touch driving electrode 21 includes a first portion of the touch driving electrode 211 and a second portion of the touch driving electrode 212, and the touch sensing electrode 22 includes a first portion of the touch sensing electrode 221 and a second portion of the touch sensing electrode 222. In the stage of no touch active pen touch, the driving electrodes 21 and the touch sensing electrodes 22 are driven to serve as conventional touch electrodes for detecting the touch position and/or touch pressure. In the touch stage of the touch active pen, the first part of touch driving electrodes 211 is reused as the first main touch detection channel 11, the second part of touch sensing electrodes 222 is reused as the second auxiliary touch sensing electrodes 14, and the touch driving signals are received and fed back to the driving chip 15 in the first detection stage; the second part of the touch driving electrodes 212 is reused as a first auxiliary touch detection channel 12, the first part of the touch sensing electrodes 221 is reused as a second main touch sensing electrode 13, the touch driving signals are received and the second touch detection signals are fed back to the driving chip 15 in the second detection stage, 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. Through the multiplexing of mutual capacitance type touch electrodes as a main touch detection channel and an auxiliary touch detection channel, the main touch detection channel and the auxiliary touch detection channel do not need to be additionally arranged for the touch active pen, and the touch position detection of the touch active pen can be realized while the simple structure of the display panel is ensured.

It should be noted that, fig. 10 only illustrates that the touch driving electrodes 21 extend along the first direction and the touch sensing electrodes 22 extend along the second direction, it is understood that the touch driving electrodes 21 may extend along the second direction and the touch sensing electrodes 22 extend along the first direction, in this case, a first portion of the touch driving electrodes may be reused as the second main touch detection channel, and a second portion of the touch driving electrodes may be reused as the second auxiliary touch detection channel; the first part of the touch sensing electrodes is reused as a first main touch detection channel, and the second part of the touch sensing electrodes is reused as a first auxiliary touch detection channel. Further, fig. 10 only illustrates the case where the touch driving electrode 21 and the touch sensing electrode 22 are disposed in different layers, and it can be understood that the touch driving electrode 21 and the touch sensing electrode 22 can also be disposed 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 disposed in the same layer, the touch sensing electrode 22 includes a plurality of touch sensing electrode blocks, and two adjacent touch sensing electrode blocks are electrically connected through a second bridge disposed in different layers.

As a possible implementation manner, the following description will take the example that the self-contained touch electrode block is reused 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.

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

For example, as shown in fig. 12, 13 and 14, since each self-capacitance touch electrode block 23 individually and electrically connects the driving chip 15, and the self-capacitance touch electrode blocks 23 are arranged in a matrix along a first direction, i.e., a row direction (X direction in the figure), and along a second direction, i.e., a row direction (Y direction in the figure), there are many different arrangements when the self-capacitance touch electrode blocks 23 are multiplexed into a main touch detection channel and an auxiliary touch detection channel.

Taking fig. 13 as an example, in the first detection stage, the odd-numbered self-contained touch electrode blocks 23 are reused as the first main touch detection channel 11; the self-capacitance touch electrode blocks 23 arranged along the second direction and in even-numbered rows are reused as the second auxiliary touch detection channels 14; or the even-numbered rows of self-contained touch electrode blocks are reused as a first main touch detection channel; the odd-numbered self-contained 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 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-capacitance touch electrode blocks shown in fig. 13 as an example, the first row of 6 self-capacitance touch electrode blocks 23 is multiplexed as a first main touch detection channel 11; the third row of 6 self-contained touch electrode blocks 23 is 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-capacitance touch electrode blocks in the first row, the first self-capacitance touch electrode blocks in the fourth row and the first self-capacitance touch electrode blocks in the sixth row are arranged along the first direction and are multiplexed into a first auxiliary touch detection channel 14; the second row of the second self-capacitance touch electrode blocks, the fourth row of the second self-capacitance touch electrode blocks and the sixth row of the second self-capacitance touch electrode blocks, which are arranged along the second direction, are multiplexed into a second auxiliary touch detection channel 14; the third self-contained touch electrode block in the second row, the third self-contained touch electrode block in the fourth row and the third self-contained touch electrode block in the sixth row, which are arranged along the second direction, are multiplexed into a second auxiliary touch detection channel 14; the fourth self-contained touch electrode blocks in the second row, the fourth self-contained touch electrode blocks in the fourth row and the fourth self-contained touch electrode blocks in the sixth row, which are arranged along the second direction, are multiplexed into a second auxiliary touch detection channel 14; the fifth self-capacitance touch electrode block in the second row, the fifth self-capacitance touch electrode block in the fourth row and the fifth self-capacitance touch electrode block in the sixth row which are arranged along the second direction are multiplexed into a second auxiliary touch detection channel 14; the sixth self-contained touch electrode blocks in the second row, the sixth self-contained touch electrode blocks in the fourth row, and the sixth self-contained touch electrode blocks in the sixth row, which are arranged along the second direction, are multiplexed into one second auxiliary touch detection channel 14.

Taking fig. 14 as an example, in the second detection stage, the odd-numbered rows of self-contained touch electrode blocks 23 are reused as the second main touch detection channels 13; the self-capacitance touch electrode blocks 23 arranged along the first direction and in even number rows are reused as a first auxiliary touch detection channel 12; or the even-numbered row self-contained touch electrode blocks are reused as a second main touch detection channel; the self-contained touch electrode blocks arranged along the first direction in odd-numbered rows 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-capacitance touch electrode blocks shown in fig. 14 as an example, the first row of 6 self-capacitance touch electrode blocks 23 is multiplexed as a second primary touch detection channel 13; the third row of 6 self-contained touch electrode blocks 23 is multiplexed into a second main touch detection channel 13; a fifth row of 6 self-contained touch electrode blocks 23 is multiplexed into a second main touch detection channel 13; the second self-capacitance touch electrode blocks in the first row, the fourth self-capacitance touch electrode blocks in the first row and the sixth self-capacitance touch electrode blocks in the first row are arranged along the first direction and are multiplexed into a first auxiliary touch detection channel 12; the second row of the second self-capacitance touch electrode blocks, the second row of the fourth self-capacitance touch electrode blocks and the second row of the sixth self-capacitance touch electrode blocks, which are arranged along the first direction, are multiplexed into a first auxiliary touch detection channel 12; a third row, a second self-capacitance touch electrode block, a third row, a fourth self-capacitance touch electrode block and a third row, a sixth self-capacitance touch electrode block which are arranged along the first direction are multiplexed into a first auxiliary touch detection channel 12; the fourth row, the second self-contained touch electrode block, the fourth row, the fourth self-contained touch electrode block and the fourth row, the sixth self-contained touch electrode block are arranged along the first direction and are multiplexed into a first auxiliary touch detection channel 12; the second self-contained touch electrode block in the fifth row, the fourth self-contained touch electrode block in the fifth row and the sixth self-contained touch electrode block in the fifth row arranged along the first direction are multiplexed into a first auxiliary touch detection channel 12; the second self-contained touch electrode blocks in the sixth row, the fourth self-contained touch electrode blocks in the sixth row, and the sixth self-contained touch electrode blocks in the sixth row, which are arranged along the first direction, 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. Through multiplexing as main touch-control detection channel and supplementary touch-control detection channel of self-holding formula touch-control electrode piece, need not to add main touch-control detection channel and supplementary touch-control detection channel for the touch-control initiative pen alone, guarantee to realize touch-control initiative pen touch position detection and guarantee display panel simple structure simultaneously.

On the basis of the above embodiment, since each touch detection channel is provided with a partial self-contained touch electrode block 23, so as to realize touch detection in the direction, 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, which is convenient for further improving touch detection precision. 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 illustrates 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 illustrates 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 stage includes a third sub-stage and a fourth sub-stage; in the first sub-stage, in the odd-numbered rows of self-capacitance touch electrode blocks, odd-numbered rows of self-capacitance touch electrode blocks or even-numbered rows of self-capacitance touch electrode blocks are reused as the first sub-main touch detection channel 111; in the second sub-stage, in the odd-numbered rows of self-capacitance touch electrode blocks, the even-numbered rows of self-capacitance touch electrode blocks or the odd-numbered rows of self-capacitance touch electrode blocks are reused as the second sub-main touch detection channels 112; or, in the first sub-stage, in the even-numbered rows of self-capacitance touch electrode blocks, the odd-numbered rows of self-capacitance touch electrode blocks or the even-numbered rows of self-capacitance touch electrode blocks are reused as the first sub-main touch detection channel; in the second sub-stage, in the even-numbered rows of self-capacitance touch electrode blocks, the even-numbered rows of self-capacitance touch electrode blocks or the odd-numbered rows of self-capacitance touch electrode blocks are reused as a second sub-main touch detection channel; in the third sub-stage, in the odd-numbered rows of self-capacitance touch electrode blocks, the odd-numbered rows of self-capacitance touch electrode blocks or the even-numbered rows of self-capacitance touch electrode blocks are reused as the third sub-main touch detection channels 131; in the fourth sub-stage, in the odd-numbered rows of self-capacitance touch electrode blocks, the even-numbered rows of self-capacitance touch electrode blocks or the odd-numbered rows of self-capacitance touch electrode blocks are reused as the second sub-main touch detection channels 132; or, in the third sub-stage, in the even-numbered rows of self-capacitance touch electrode blocks, the odd-numbered rows of self-capacitance touch electrode blocks or the even-numbered rows of self-capacitance touch electrode blocks are reused as a third sub-main touch detection channel; in the second sub-stage, the even-numbered rows of self-capacitance touch electrode blocks or the odd-numbered rows of self-capacitance touch electrode blocks are reused as the second sub-main touch detection channels.

For example, as shown in fig. 15, in the first sub-stage, in the self-capacitance touch electrode blocks in odd rows, the self-capacitance touch electrode blocks in odd rows or the self-capacitance touch electrode blocks in even rows are reused as the first sub-main touch detection channels 111; in the second sub-stage, in the odd-numbered rows of self-capacitance touch electrode blocks, the even-numbered rows of self-capacitance touch electrode blocks or the odd-numbered rows of self-capacitance touch electrode blocks are multiplexed into the second sub-main touch detection channels 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-contained touch electrode block is 4mm × 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 a position of 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 a position of 2.5mm, so that the touch position detection is further refined, and the touch position detection accuracy is improved. Taking 6 × 6 self-capacitance touch electrode blocks shown in fig. 15 as an example, the first row of 6 self-capacitance touch electrode blocks 23 is multiplexed as a first main touch detection channel 11; further, the first, third and fifth of the 6 self-contained touch electrode blocks 23 in the first row can be used as the first sub-main touch detection channel 111, and the second, fourth and sixth can be used as the second sub-main touch detection channel 112; alternatively, the first, third and fifth of the 6 self-contained touch electrode blocks 23 in the first row can be used as the second sub-main touch detection channel 112, and the second, fourth and sixth can be used as the first sub-main touch detection channel 111. The other rows are similar to the first row and are not described here.

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

As a possible implementation manner, the following description will proceed by taking the example in which the self-contained touch electrode block is reused 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.

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

For example, as shown in fig. 12, 17 and 18, since each self-capacitance touch electrode block 23 individually and electrically connects the driving chip 15, and the self-capacitance touch electrode blocks 23 are arranged in a matrix along a first direction, i.e., a row direction (X direction in the figure), and along a second direction, i.e., a row direction (Y direction in the figure), there are many different arrangements when the self-capacitance touch electrode blocks 23 are multiplexed into a main touch detection channel and an 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 reused as the first main touch detection channel 11; the even-numbered rows of self-contained touch electrode blocks are multiplexed into a second auxiliary touch detection channel 14; or, the even-numbered row self-contained touch electrode blocks are arranged along the first direction and are reused as 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 (not shown in the figure), 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-capacitance touch electrode blocks shown in fig. 17 as an example, the first row of the first self-capacitance touch electrode blocks, the first row of the third self-capacitance touch electrode blocks, and the first row of the fifth self-capacitance touch electrode blocks, which are arranged along the first direction, are multiplexed into a first main touch detection channel 11; the first self-capacitance touch electrode blocks in the second row, the third self-capacitance touch electrode blocks in the second row and the fifth self-capacitance touch electrode blocks in the second row are arranged along the first direction and are multiplexed into a first main touch detection channel 11; the first self-capacitance touch electrode block, the third self-capacitance touch electrode block and the fifth self-capacitance touch electrode block are arranged along the first direction and are multiplexed into a first main touch detection channel 11; the fourth row of the first self-contained touch electrode block, the fourth row of the third self-contained touch electrode block and the fourth row of the fifth self-contained touch electrode block are arranged along the first direction and are multiplexed into a first main touch detection channel 11; the first self-capacitance touch electrode block in the fifth row, the third self-capacitance touch electrode block in the fifth row and the fifth self-capacitance touch electrode block in the fifth row arranged along the first direction are multiplexed into a first main touch detection channel 11; the first self-capacitance touch electrode block and the second self-capacitance touch electrode block are arranged along the first direction in a sixth row; the sixth row of the third self-contained touch electrode block and the sixth row of the fifth self-contained touch electrode block are multiplexed into a first main touch detection channel 11; a 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 is multiplexed into a second auxiliary touch detection channel 14; the sixth row of 6 self-contained touch electrode blocks is multiplexed into a second auxiliary touch detection channel 14.

Taking fig. 18 as an example, in the second detection stage, the odd-numbered rows of self-contained touch electrode blocks are reused as the second main touch detection channels 13; the even-numbered row self-capacitance touch electrode blocks are arranged along the first direction and are multiplexed into a second auxiliary touch detection channel 12; or the even-numbered row self-contained touch electrode blocks are reused as a second main touch detection channel; the odd-numbered rows of self-contained touch electrode blocks arranged along the first direction are multiplexed into a second 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-capacitance touch electrode blocks shown in fig. 18 as an example, the first row of 6 self-capacitance touch electrode blocks 23 is multiplexed as a second primary touch detection channel 13; the third row of 6 self-contained touch electrode blocks 23 is multiplexed into a second main touch detection channel 13; a fifth row of 6 self-contained touch electrode blocks 23 is multiplexed into a second main touch detection channel 13; the second self-capacitance touch electrode blocks in the first row, the fourth self-capacitance touch electrode blocks in the first row and the sixth self-capacitance touch electrode blocks in the first row are arranged along the first direction and are multiplexed into a first auxiliary touch detection channel 12; the second row of the second self-capacitance touch electrode blocks, the second row of the fourth self-capacitance touch electrode blocks and the second row of the sixth self-capacitance touch electrode blocks, which are arranged along the first direction, are multiplexed into a first auxiliary touch detection channel 12; a third row, a second self-capacitance touch electrode block, a third row, a fourth self-capacitance touch electrode block and a third row, a sixth self-capacitance touch electrode block which are arranged along the first direction are multiplexed into a first auxiliary touch detection channel 12; the fourth row, the second self-contained touch electrode block, the fourth row, the fourth self-contained touch electrode block and the fourth row, the sixth self-contained touch electrode block are arranged along the first direction and are multiplexed into a first auxiliary touch detection channel 12; the second self-contained touch electrode block in the fifth row, the fourth self-contained touch electrode block in the fifth row and the sixth self-contained touch electrode block in the fifth row arranged along the first direction are multiplexed into a first auxiliary touch detection channel 12; the second self-contained touch electrode blocks in the sixth row, the fourth self-contained touch electrode blocks in the sixth row, and the sixth self-contained touch electrode blocks in the sixth row, which are arranged along the first direction, 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 partial self-contained touch electrode block 23, so as to realize touch detection in the direction, 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, which is convenient for further improving touch detection precision. Specifically, fig. 19 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. 20 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. 19 illustrates 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 illustrates 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 at least includes a first sub-auxiliary touch detection channel 141 and a second sub-auxiliary touch detection channel 142, and the first detection stage at least includes a fifth sub-stage and a sixth sub-stage; the second main touch detection channel 13 at least includes a third sub-main touch detection channel 131 and a fourth sub-main touch detection channel 132, and the second detection stage at least includes a seventh sub-stage and an eighth sub-stage; in the fifth sub-stage, in the even-numbered rows of self-capacitance touch electrode blocks, the odd-numbered rows of self-capacitance touch electrode blocks or the even-numbered rows of self-capacitance touch electrode blocks are reused as the first sub-auxiliary touch detection channels 141; in the sixth sub-stage, in the even-numbered rows of self-capacitance touch electrode blocks, the even-numbered rows of self-capacitance touch electrode blocks or the odd-numbered rows of self-capacitance touch electrode blocks are reused as the second sub-auxiliary touch detection channels 142; or, in the fifth sub-stage, in the odd-numbered rows of the self-capacitance touch electrode blocks, the odd-numbered rows of the self-capacitance touch electrode blocks or the even-numbered rows of the self-capacitance touch electrode blocks are reused as the first sub-auxiliary touch detection channels; in the sixth sub-stage, in the odd-numbered rows of self-capacitance touch electrode blocks, the even-numbered rows of self-capacitance touch electrode blocks or the odd-numbered rows of self-capacitance touch electrode blocks are reused as second sub-auxiliary touch detection channels; in the seventh sub-stage, in the odd-numbered rows of self-capacitance touch electrode blocks, the odd-numbered rows of self-capacitance touch electrode blocks or the even-numbered rows of self-capacitance touch electrode blocks are reused as the third sub-main touch detection channels 131; in the eighth sub-stage, in the odd-numbered rows of the self-capacitance touch electrode blocks, the even-numbered rows of the self-capacitance touch electrode blocks or the odd-numbered rows of the self-capacitance touch electrode blocks are reused as the fourth sub-main touch detection channel 132; or, in the seventh sub-stage, in the even-numbered rows of self-capacitance touch electrode blocks, the odd-numbered rows of self-capacitance touch electrode blocks or the even-numbered rows of self-capacitance touch electrode blocks are reused as the third sub-main touch detection channel; in the eighth sub-stage, the even-numbered rows of self-capacitance touch electrode blocks or the odd-numbered rows of self-capacitance touch electrode blocks are reused as the fourth sub-main touch detection channel.

For example, as shown in fig. 19, in the fifth sub-stage, in the even-numbered rows of the self-capacitance touch electrode blocks, the odd-numbered rows of the self-capacitance touch electrode blocks or the even-numbered rows of the self-capacitance touch electrode blocks are reused as the first sub-auxiliary touch detection channels 141; in the sixth sub-stage, in the even-numbered row self-capacitance touch electrode blocks, the even-numbered row self-capacitance touch electrode blocks or the odd-numbered row self-capacitance touch electrode blocks are multiplexed into the second sub-auxiliary touch detection channels 142, so that not only are the second auxiliary touch detection channels extending along the second direction determined, but also the second auxiliary touch detection channels can be divided in the first direction, and the touch position detection accuracy is further improved. For example, when the size of the self-contained 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 a position of 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 a position of 2.5mm, so that the touch position detection is further refined, and the touch position detection accuracy is improved. Taking 6 × 6 self-capacitance touch electrode blocks shown in fig. 19 as an example, the 6 self-capacitance touch electrode blocks 23 in the second row 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 can be used as the first sub-auxiliary touch detection channel 141, and the second, fourth and sixth can be used as the second sub-auxiliary touch detection channel 142; alternatively, the first, third and fifth of the 6 self-contained touch electrode blocks 23 in the second row can be used as the second sub-auxiliary touch detection channel 142, and the second, fourth and sixth can be used as the first sub-auxiliary touch detection channel 141. The case of the other columns is similar to that of the second column and will not be described again here.

Similarly, as shown in fig. 20, in the seventh sub-stage, in the odd-numbered rows of self-capacitance touch electrode blocks, the odd-numbered rows of self-capacitance touch electrode blocks or the even-numbered rows of self-capacitance touch electrode blocks are reused as the third sub-main touch detection channels 131; in the eighth sub-stage, in the odd-numbered rows of the self-capacitance touch electrode blocks, the even-numbered rows of the self-capacitance touch electrode blocks or the odd-numbered rows of the self-capacitance touch electrode blocks are multiplexed into the second sub-main touch detection channels 132, so that not only the second main touch detection channels extending along the second direction are determined, but also the second main touch detection channels can be divided in the first direction, and the touch position detection accuracy is further improved. For example, when the size of the self-contained 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 a position of 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 a position of 2.5mm, so that the touch position detection is further refined, and the touch position detection accuracy is improved. Taking 6 × 6 self-capacitance touch electrode blocks shown in fig. 20 as an example, the first row of 6 self-capacitance touch electrode blocks 23 is multiplexed as a second primary touch detection channel 13; further, the first, third and fifth of the first row of 6 self-contained touch electrode blocks 23 can be used as the third sub-main touch detection channel 131, and the second, fourth and sixth can be used as the fourth sub-main touch detection channel 132; alternatively, the first, third and fifth of the 6 self-contained touch electrode blocks 23 in the first row can be used as the fourth sub-main touch detection channel 132, and the second, fourth and sixth can be used as the third sub-main touch detection channel 131. The other columns are similar to the first column and are not described in detail here.

As a possible implementation manner, the following description will take the example that the self-contained touch electrode block is multiplexed into the first main touch detection channel and the second main touch detection channel, the scan signal line is multiplexed into the first auxiliary touch detection channel, and the data signal line is multiplexed into the second auxiliary touch detection channel.

Fig. 21 is a schematic structural diagram of another display panel according to an 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 (an X direction shown in the figure) and a data signal line 17 extending along a second direction (a Y direction shown in the figure); at least a portion of the scanning signal lines 16 are multiplexed into the first auxiliary touch detection channel 12, and at least a portion 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, 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 block as a main touch detection channel is detailed in the above embodiments, which is not described herein, and fig. 21 only illustrates the case of multiplexing the self-capacitance touch electrode block 23 as a main touch detection channel. The difference between this embodiment and the above embodiments is that at least a portion of the scanning signal lines 16 is multiplexed as the first auxiliary touch detection channel 12, and at least a portion of the data signal lines 17 is multiplexed as the second auxiliary touch detection channel 14, so that it is not necessary to separately add an auxiliary touch detection channel for the touch active pen, and it is ensured that the touch position detection of the touch active pen can be realized, and the structure of the display panel is simple.

It should be noted that, in general, the distribution density of the display pixels is greater than that of the self-contained touch electrode blocks, so the number of the first main touch detection channels extending along the first direction is less than the number of the scan signal lines 16, and the number of the second main touch detection channels extending along the second direction is less than the number of the data signal lines 17, so that a part of the scan signal lines 16 can be multiplexed as the first auxiliary touch detection channels 12, and a part of the data signal lines 17 can be multiplexed as the second auxiliary touch detection channels 14

Note that, since the data signal lines 17 and the touch signal lines may extend in the same direction, the touch signal lines are not shown in fig. 21.

Fig. 22 is a schematic structural diagram of another display panel according to an embodiment of the present invention, and as shown in fig. 22, the display panel 10 further includes a common electrode 21 and a touch electrode 20, and the common electrode 21 is reused as the touch electrode 20; the touch electrode 20 includes a hollow portion 201, and in the light emitting direction of the display panel, the hollow portion 201 at least partially overlaps with the scan signal line 16 and the data signal line 17.

Illustratively, at least a portion of the scanning signal lines 16 is multiplexed as the first auxiliary touch detection channel 12, and at least a portion of the data signal lines 17 is multiplexed as the second auxiliary touch detection channel 14, so that the scanning signal lines 16 and the data signal lines 17 are positioned to receive touch signals of a touch-activated pen, and therefore, the touch electrode 20 includes a hollow portion 201, and at least a portion of the scanning signal lines 16 and the data signal lines 17 are exposed through the hollow portion 201, so as to ensure that more touch signals of the touch-activated pen are received by the scanning signal lines 16 and the data signal lines 17, which is beneficial to improving the touch position detection accuracy.

Based on the same inventive concept, the embodiment of the invention also provides a display device, and the display device comprises any one of the display panels provided by the above embodiments. Exemplarily, 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 embodiments, and the same points can be understood by referring to the above explanation of the display panel, which is not repeated herein.

The display device 100 provided in the embodiment of the present invention may be a mobile phone as shown in fig. 23, and may also be any electronic product with a display function, including but not limited to the following categories: the touch screen display system comprises a television, a notebook computer, a desktop display, a tablet computer, a digital camera, an intelligent bracelet, intelligent glasses, a vehicle-mounted display, industrial control equipment, a medical display screen, a touch interaction terminal and the like, and the embodiment of the invention is not particularly limited in this respect.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. 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, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A display panel, comprising:

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

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

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

5. The display panel of claim 2, wherein, along the second direction, an extended width of the first primary touch detection channel is equal to an extended width of the first auxiliary touch detection channel;

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.

6. The display panel of claim 1, further comprising touch electrodes, the touch electrodes comprising mutual capacitance touch electrodes;

the mutual capacitance type touch control electrodes comprise a plurality of touch control driving electrodes extending along the first direction and a plurality of touch control induction electrodes extending along the second direction; the touch driving electrodes at least comprise a first part of touch driving electrodes and a second part of touch driving electrodes, and the touch sensing electrodes at least comprise a first part of touch sensing electrodes and a second part of touch sensing electrodes;

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

the second part of touch sensing electrodes are reused as the second main touch detection channel, and the second part of touch sensing electrodes are reused as the second auxiliary touch detection channel.

7. The display panel according to claim 1, wherein the display panel further comprises a touch electrode comprising a plurality of self-contained touch electrode blocks arranged in a matrix along the first direction and the second direction;

in the first detection stage, the odd-numbered rows of the self-contained touch electrode blocks are reused as the first main touch detection channel; the self-contained touch electrode blocks arranged along the second direction and in a plurality of even-numbered rows are reused as the second auxiliary touch detection channel; or the self-contained touch electrode blocks in even rows are reused as the first main touch detection channel; the self-contained touch electrode blocks arranged along the second direction and in a plurality of odd-numbered rows are reused as the second auxiliary touch detection channel;

in the second detection stage, the odd-numbered rows of the self-contained touch electrode blocks are reused as the second main touch detection channel; the self-contained touch electrode blocks arranged along the first direction and in even-numbered rows are reused as the first auxiliary touch detection channel; or even rows of the self-contained touch electrode blocks are multiplexed into the second main touch detection channel; the self-contained touch electrode blocks arranged along the first direction in a plurality of odd-numbered rows are reused as the first auxiliary touch detection channel.

8. The display panel of claim 7, 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, and the first detection stage comprises 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, odd rows of the self-capacitance touch electrode blocks or even rows of the self-capacitance touch electrode blocks in odd rows of the self-capacitance touch electrode blocks are reused as the first sub-main touch detection channel; in the second sub-stage, in odd-numbered rows of the self-capacitance touch electrode blocks, even-numbered rows of the self-capacitance touch electrode blocks or odd-numbered rows of the self-capacitance touch electrode blocks are reused as the second sub-main touch detection channels;

or, in the first sub-stage, in even rows of the self-capacitance touch electrode blocks, odd rows of the self-capacitance touch electrode blocks or even rows of the self-capacitance touch electrode blocks are reused as the first sub-main touch detection channels; in the second sub-stage, in the even-numbered rows of the self-capacitance touch electrode blocks, the even-numbered rows of the self-capacitance touch electrode blocks or the odd-numbered rows of the self-capacitance touch electrode blocks are reused as the second sub-main touch detection channels;

in the third sub-stage, odd-numbered rows of the self-capacitance touch electrode blocks or even-numbered rows of the self-capacitance touch electrode blocks are reused as the third sub-main touch detection channels; in the fourth sub-stage, in odd-numbered rows of the self-capacitance touch electrode blocks, even-numbered rows of the self-capacitance touch electrode blocks or odd-numbered rows of the self-capacitance touch electrode blocks are reused as the second sub-main touch detection channels;

or, in the third sub-stage, in the self-capacitance touch electrode blocks in even rows, the self-capacitance touch electrode blocks in odd rows or the self-capacitance touch electrode blocks in even rows are reused as the third sub-main touch detection channel; in the second sub-stage, in the even-numbered rows of the self-capacitance touch electrode blocks, the self-capacitance touch electrode blocks in the even-numbered rows or the self-capacitance touch electrode blocks in the odd-numbered rows are reused as the second sub-main touch detection channels.

9. The display panel according to claim 1, wherein the display panel further comprises a touch electrode comprising a plurality of self-contained touch electrode blocks arranged in a matrix along the first direction and the second direction;

in the first detection stage, the self-contained touch electrode blocks arranged along the first direction in a plurality of odd-numbered rows are reused as the first main touch detection channel; the even-numbered rows of the self-contained touch electrode blocks are reused as the second auxiliary touch detection channels; or, the self-contained touch electrode blocks arranged along the first direction in even number rows are reused as the first main touch detection channel; odd columns of the self-contained touch electrode blocks are reused as the second auxiliary touch detection channels;

in the second detection stage, the odd-numbered rows of the self-contained touch electrode blocks are reused as the second main touch detection channel; the self-contained touch electrode blocks are arranged along the first direction, and a plurality of even-numbered rows of the self-contained touch electrode blocks are reused as the first auxiliary touch detection channels; or even rows of the self-contained touch electrode blocks are multiplexed into the second main touch detection channel; and the self-contained touch electrode blocks are arranged along the first direction, and a plurality of odd-numbered rows of the self-contained touch electrode blocks are reused as the first auxiliary touch detection channels.

10. The display panel of claim 9, 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, and 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 touch electrode blocks in even rows, the self-capacitance touch electrode blocks in odd rows or the self-capacitance touch electrode blocks in even rows are reused as the first sub-auxiliary touch detection channels; in the sixth sub-stage, in the self-capacitance touch electrode blocks in even-numbered rows, the self-capacitance touch electrode blocks in even-numbered rows or the self-capacitance touch electrode blocks in odd-numbered rows are reused as the second sub-auxiliary touch detection channels;

alternatively, the first and second electrodes may be,

in the fifth sub-stage, odd-numbered rows of the self-capacitance touch electrode blocks or even-numbered rows of the self-capacitance touch electrode blocks are reused as the first sub-auxiliary touch detection channels; in the sixth sub-stage, in the odd-numbered rows of the self-capacitance touch electrode blocks, the self-capacitance touch electrode blocks in even-numbered rows or the self-capacitance touch electrode blocks in odd-numbered rows are reused as the second sub-auxiliary touch detection channels;

in the seventh sub-stage, odd-numbered rows of the self-capacitance touch electrode blocks or even-numbered rows of the self-capacitance touch electrode blocks are reused as the third sub-main touch detection channels; in the eighth sub-stage, in the odd-numbered rows of the self-capacitance touch electrode blocks, the self-capacitance touch electrode blocks in even-numbered rows or the self-capacitance touch electrode blocks in odd-numbered rows are reused as the fourth sub-main touch detection channels;

alternatively, the first and second electrodes may be,

in the seventh sub-stage, in the self-capacitance touch electrode blocks in even rows, the self-capacitance touch electrode blocks in odd rows or the self-capacitance touch electrode blocks in even rows are reused as the third sub-main touch detection channels; in the eighth sub-stage, in the even-numbered rows of the self-capacitance touch electrode blocks, the self-capacitance touch electrode blocks in the even-numbered rows or the self-capacitance touch electrode blocks in the odd-numbered rows are reused as the fourth sub-main touch detection channels.

11. The display panel according to claim 1, further comprising a scanning 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.

12. The display panel according to claim 11, further comprising a common electrode and a touch electrode, the common electrode being multiplexed as the touch electrode;

the touch electrode comprises a hollow part, and the hollow part is at least partially overlapped with the scanning signal line and the data signal line in the light emitting direction of the display panel.

13. A display device characterized by comprising the display panel according to any one of claims 1 to 12.