WO2020047866A1 - Touch display panel, touch detection method, and touch display device - Google Patents

Abstract

A touch display panel (10), a touch detection method, and a touch display device (20). The touch display panel (10) comprises a display region (11) and a non-display region (12) arranged at the periphery of the display region (11). The display region (11) is provided with a first touch electrode (100). The first touch electrode (100) comprises multiple first sub-touch electrodes (110) arranged at intervals. At least two of the first sub-touch electrodes (110) are connected to the same first connection line (200) provided in the non-display region (12). In the touch display panel, connection of at least two first sub-touch electrodes to the same first connection line reduces the number of connection lines arranged in the touch display panel, thereby reducing an area of the non-display region, and increasing a screen-to-body ratio.

Description

Touch display panel, touch detection method, and touch display device Technical field

The invention belongs to the field of display technology, and particularly relates to a touch display panel, a touch detection method, and a touch display device.

Background technique

With the development of display technology, display devices with a high screen ratio have become more and more widely used. A display device with a high screen ratio needs to reduce the frame size of the display panel as much as possible, so it is necessary to reasonably design the wiring and circuit structure in the frame of the display panel. In a touch display panel, a touch electrode layer is added to the panel, and each touch electrode has a data line connected to the processor to sense a touch signal, thus increasing the amount of data lines connected to the touch electrode In the prior art, the data line is set in a non-display area of the display panel, so that the frame size of the display panel is increased.

Summary of the Invention

In view of this, the present invention provides a touch display panel capable of reducing the frame and increasing the screen ratio. The specific scheme is described below.

A touch display panel includes a display area and a non-display area provided on the periphery of the display area. The display area is provided with a first touch electrode, and the first touch electrode includes a plurality of At least two first sub-touch electrodes disposed at intervals, at least two of the first sub-touch electrodes are connected to the same first connection line provided in the non-display area.

Preferably, the non-display area includes a first sub-non-display area and a second sub-non-display area, and the first sub-non-display area and the second sub-non-display area are disposed on both sides of the display area, When the touch display panel includes a plurality of first connection lines, part of the first connection lines are disposed in the first sub-non-display area, and part of the first connection lines are disposed in the second sub-non-display area.

Preferably, a preset number of the first sub-touch electrodes form a touch electrode group, and within the touch electrode group, at least between the first sub-touch electrodes connected by the same first connection line. One of the first sub-touch electrodes is spaced apart, wherein the preset number is an integer greater than or equal to three.

Preferably, the preset number is equal to 4. In a touch electrode group, the first one of the first sub-touch electrodes and the fourth one of the first sub-touch electrodes are connected through the same first connection.线 连接。 Line connection.

Preferably, the first sub-touch electrodes in the touch electrode group except for the first sub-touch electrode connected through the same first connection line are electrically connected to the second connection line respectively, and the same set of touch electrode groups The first connection line in is disposed in the first sub-non-display area, and the second connection line in the same touch electrode group is disposed in the second sub-non-display area.

Preferably, among two adjacent touch electrode groups, a first connection line of one touch electrode group is disposed in the first sub-non-display area, and a first connection line of the other touch electrode group is disposed at The second sub-non-display area.

Preferably, the first sub-touch electrodes in the touch electrode group except for the first sub-touch electrode connected through the same first connection line are electrically connected to the second connection line, respectively, in adjacent Of the two touch electrode groups, a second connection line of one touch electrode group is disposed in the first sub-non-display area, and a second connection line of the other touch electrode group is disposed in the second sub-non-display area. Area.

Preferably, the first connection lines in the first sub-non-display area or the second sub-non-display area are arranged at the same interval.

Preferably, the touch display panel further includes a second touch electrode, and the second touch electrode includes a plurality of second sub-touch electrodes disposed at intervals, and the second sub-touch electrode and the first The sub-touch electrodes are cross-insulated; when the first touch electrode is a driving electrode, the second touch electrode is a sensing electrode; when the first touch electrode is a sensing electrode, the second touch electrode is The control electrode is a driving electrode.

Preferably, the touch display panel further includes an insulating layer, the insulating layer is provided between the first touch electrode and the second touch electrode, and part of the first connection line is provided on the insulation Layer.

Preferably, a part of the first connection line provided in the insulation layer and an orthographic projection of the other part of the first connection line provided on the insulation layer other than the insulation layer at least partially overlap.

Preferably, the number of the second sub-touch electrodes is smaller than the number of the first sub-touch electrodes, and the first sub-touch electrodes are arranged in a first direction, and the second sub-touch electrodes The electrodes are arranged along the second direction, and the size of the touch display panel in the second direction is smaller than the size of the touch display panel in the first direction.

Preferably, the distance between the centers of two adjacent first sub-touch electrodes is 4-7 mm.

Preferably, the first sub-touch electrode includes a first end and a second end opposite to each other, and a width of the N-th first sub-touch electrode is gradually reduced from the first end to the second end. Small, the width of the N + 1th first sub-touch electrode gradually decreases from the second end to the first end; the first end of the Nth first sub-touch electrode is adjacent to all The first end of the N + 1th first sub-touch electrode is described.

The present invention also provides a touch display device. The touch display device includes a processor and the touch display panel according to any one of the above, and the first connection line is electrically connected to the processor.

The present invention also provides a touch detection method, which is applied to a touch display panel. The touch display panel includes a display area and a non-display area provided on the periphery of the display area. The display area is provided with a first touch screen. An electrode, the first touch electrode includes a plurality of first sub-touch electrodes spaced apart, and at least two of the first sub-touch electrodes are connected to the same first connection line provided in the non-display area, The first sub-touch electrodes other than the first sub-touch electrodes connected through the same first connection line are electrically connected to the second connection line, respectively;

The touch detection method includes:

Acquiring a first signal on the first connection line and a second signal on the second connection line;

First position information of a touch operation on the touch display panel is obtained according to the first signal and the second signal.

Preferably, the "obtaining the first position information of the touch operation on the touch display panel according to the first signal and the second signal" includes:

The first position information of a touch operation on the touch display panel is obtained according to the first signal, the second signal, and position information of a first sub-touch electrode corresponding to the second signal.

Preferably, the touch display panel further includes a second touch electrode, and the second touch electrode includes a plurality of second sub-touch electrodes disposed at intervals, and the second sub-touch electrode and the first The sub-touch electrodes are cross-insulated, and the second sub-touch electrode is electrically connected to a third connection line;

The touch detection method further includes:

Acquiring the third signal of the third connection line;

Obtaining second position information of a touch operation on the touch display panel according to the third signal;

Obtaining coordinate information of a touch operation on the touch display panel according to the first position information and the second position information.

Preferably, the first sub-touch electrode includes a first end and a second end opposite to each other, and a width of the N-th first sub-touch electrode is gradually reduced from the first end to the second end. Small, the width of the N + 1th first sub-touch electrode gradually decreases from the second end to the first end; the first end of the Nth first sub-touch electrode is adjacent to all The first end of the N + 1th first sub-touch electrode is set;

The "obtaining first position information of a touch operation on the touch display panel according to the first signal and the second signal" includes:

Determining, according to the intensity values of the first signal and the second signal, that the signal with the highest intensity value is the target signal;

Determining a target first sub-touch electrode according to the target signal;

Determining first position information of a touch operation on the touch display panel according to a signal corresponding to the target first sub-touch electrode.

Advantageous effects of the present invention: In the touch display panel provided by the present invention, connecting at least two first sub-touch electrodes on the same first connection line can reduce the number of connection lines in the touch display panel to reduce non- The area of the display area increases the screen ratio.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. Those skilled in the art can also obtain other drawings according to these drawings without paying creative labor.

FIG. 1 is a schematic structural diagram of a touch display panel according to a first embodiment of the present invention.

FIG. 2 is a schematic structural diagram of another touch display panel provided by the first embodiment of the present invention.

FIG. 3 is a partial cross-sectional view of a touch display panel provided in the present invention in a non-display area.

FIG. 4 is another cross-sectional view of a touch display panel provided in the present invention in a non-display area.

FIG. 5 is a schematic structural diagram of a touch display panel according to a second embodiment of the present invention.

FIG. 6 is a touch display device provided by the present invention.

FIG. 7 is a flowchart of a touch detection method provided by the present invention.

FIG. 8 is a schematic structural diagram of another touch display panel provided by the present invention when it is touched.

FIG. 9 is a flowchart of a determination signal provided by the present invention.

FIG. 10 is a sub-flow chart of step S200 in FIG. 7.

detailed description

In the following, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The terms "first", "second", and the like in the description and claims of the present invention and the drawings are used to distinguish different objects and are not used to describe a specific order. Furthermore, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device containing a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes Other steps or units inherent to these processes, methods, products or equipment.

Reference to "an embodiment" herein means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the invention. The appearances of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they independent or alternative embodiments that are mutually exclusive with other embodiments. Those skilled in the art will understand explicitly and implicitly that the embodiments described herein may be combined with other embodiments.

Referring to FIG. 1, a first embodiment of the present invention provides a touch display panel 10. The touch display panel 10 includes a display area 11 and a non-display area 12 disposed on the periphery of the display area 11. The non-display area 12 is adjacent to at least one side of the display area 11. The display area 11 is provided with a first touch electrode 100. The first touch electrode 100 includes a plurality of first sub-touch electrodes 110 spaced apart from each other. At least two first sub-touch electrodes 110 and a non-display area 12 are provided. The same first connection line 200 is connected. The first connection line 200 is used to transmit a signal generated when the first sub-touch electrode 110 connected to the first touch electrode 110 is touched to a processor of the touch display panel 10.

In the touch display panel 10 provided by the present invention, connecting at least two first sub-touch electrodes 110 to the same first connection line 200 can reduce the number of connection lines in the touch display panel 10 to reduce the non-display area. 12 area, increase the screen ratio.

In a further embodiment, the non-display area 12 includes a first sub-non-display area 13 and a second sub-non-display area 14, and the first sub-non-display area 13 and the second sub-non-display area 14 are disposed in two of the display area 11. On the other hand, when the touch display panel 10 includes a plurality of first connection lines 200, some of the first connection lines 200 are provided in the first sub-non-display area 13, and some of the first connection lines 200 are provided in the second sub-non-display area 14. . In this way, the distribution of the first connection lines 200 in the non-display area 12 is symmetrical and uniform.

Please refer to FIG. 2. In a further embodiment, a preset number of first sub-touch electrodes 110 constitute a touch electrode group 120. Within the touch electrode group 120, a first There is at least one first sub-touch electrode 110 spaced between the sub-touch electrodes 110, wherein the preset number is an integer greater than or equal to three. That is, at least two first sub-touch electrodes 110 connected to the same first connection line 200 are not arranged adjacent to each other in parallel. For example, in FIG. 2, a first sub-touch electrode 110 b and a first sub-touch electrode 110 c are provided between two first sub-touch electrodes 110 a and 110 d on the same first connection line 200. When the first sub-touch electrode 110d is touched, when a signal transmitted by the first connection line 200 is received, a touch ghost point is mapped on the first sub-touch electrode 110a. In some touch display panels, the area when a finger touches may span two or more first sub-touch electrodes. For example, the touch area is the area A in FIG. 2. Therefore, the first sub-touch electrode 110d is touched. When it touches the first sub-touch electrode 110c adjacent to it, the ghost of the first sub-touch electrode 110a can be eliminated by using the signal generated by the first sub-touch electrode 110c, and the touch is determined to be generated. The signal electrode is the first sub-touch electrode 110d. That is to say, the setting of this embodiment is beneficial to the recognition of the coordinate position when being touched.

Please continue to refer to FIG. 2. In a further embodiment, the preset number is equal to 4. In a touch electrode group 120, the first first sub-touch electrode 110a and the fourth first sub-touch electrode 110d pass The same first connection line 200 is connected. That is, two first sub-touch electrodes 110b and 110c are provided between the first sub-touch electrode 110a and the first sub-touch electrode 110d, where the first sub-touch electrode 110b can be used to assist in identifying the first sub-touch The position of the control electrode 110a and the first sub-touch electrode 110c can be used to assist in identifying the position of the first sub-touch electrode 110d.

In a further embodiment, the distance between the centers of two adjacent first sub-touch electrodes 110 is 4-7 mm. More preferably, the distance between the centers of two adjacent first sub-touch electrodes 110 is 5-6.5 mm. The diameter of the touch area of the finger is about 12 mm. At this time, the finger can span the two first sub-touch electrodes 110 to assist in determining the touch position.

In a further embodiment, the first sub-touch electrodes 110 in the touch electrode group 120 except for the first sub-touch electrode 110 connected through the same first connection line 200 are electrically connected to the second connection line 300, respectively. The first connection line 200 in the same touch electrode group 120 is disposed in the first sub-non-display area 13, and the second connection line 300 in the same touch electrode group 120 is disposed in the second sub-non-display area 14. It can be understood that each second connection line 300 is respectively connected to a first sub-touch electrode 110, and the second connection line 300 is used to transmit a signal generated when the first sub-touch electrode 110 connected thereto is touched. To the processor of the touch display panel 10. The first connection line 200 and the second connection line 300 are separately disposed on both sides of the display area 11 to be uniformly arranged.

In a further embodiment, among two adjacent touch electrode groups 120, a first connection line 200 of one touch electrode group 120 is disposed in the first sub-non-display area 13, and the other touch electrode group 120 The first connection line 200 is disposed in the second sub-non-display area 14. Please refer to FIG. 2, wherein the first connection line 200 of the touch electrode group 120 is disposed in the first sub-non-display area 13, and the first connection line 200 a of the touch electrode group 120 a is disposed in the second sub-non-display area 14. The arrangement of this embodiment can further make the connecting lines evenly symmetrical.

In a further embodiment, among two adjacent touch electrode groups 120, the second connection line 300 of one touch electrode group 120 is disposed in the first sub-non-display area 13 and the other touch electrode group 120 The second connecting line 300 is disposed in the second sub-non-display area 14. Please refer to FIG. 2, wherein the second connection line 300 of the touch electrode group 120 is disposed in the second sub-non-display area 14, and the second connection line 300 a of the touch electrode group 120 a is disposed in the first sub-non-display area 13. The arrangement of this embodiment can further make the connecting lines evenly symmetrical.

In a further embodiment, the first connection lines 200 in the first sub-non-display area 13 or the second sub-non-display area 14 are arranged at the same layer interval. Avoid interfering with the first connecting wire 200 and generating signal interference. It can be understood that the second connecting lines 300 in the first sub-non-display area 13 or the second sub-non-display area 14 are arranged at the same interval. Avoid signal interference caused by the second connection wire 300 being entangled.

Please continue to refer to FIG. 1. In a further embodiment, the touch display panel 10 further includes a second touch electrode 400, and the second touch electrode 400 includes a plurality of spaced second sub-touch electrodes 410. The touch electrode 410 and the first sub-touch electrode 110 are cross-insulated. When the first touch electrode 100 is a driving electrode, the second touch electrode 400 is a sensing electrode. When the first touch electrode 100 is a sensing electrode, the second touch electrode 400 is a driving electrode. In this embodiment, the touch display panel 10 is a mutual-capacitive touch panel. It can be understood that when the touch display panel 10 is used in a mobile phone electronic device, the second touch electrode 400 extends in the long side direction (first direction A) of the mobile phone, and the first touch electrode 100 is on the short side of the mobile phone. It extends in the direction (second direction B). In the present invention, the way of setting the connecting line can reduce the width of the long side of the mobile phone, thereby reducing the frame of the mobile phone. In some embodiments, the connection line of the second touch electrode 400 may be set in a similar manner to the connection line of the first touch electrode 100. At least two second sub-touch electrodes 410 may be connected through the same connection. To reduce the width of the short side of the touch display panel 10.

Please refer to FIG. 3, which provides a partial cross-sectional view of the touch display panel 10 in the non-display area 12. In a further embodiment, the touch display panel 10 further includes an insulating layer 500. The insulating layer 500 is disposed between the first touch electrode 100 and the second touch electrode 400. Part of the first connection line 200 is disposed on the insulating layer 500. in. That is to say, the first touch electrode 100 and the second touch electrode 400 are insulated by the insulating layer 500. Placing part of the first connection lines 200 in the insulating layer 500 can reduce the denseness of the connection lines in the same layer. The area occupied by the non-display area 12 is further reduced, and the screen ratio is increased. It can be understood that part of the second connection lines 300 can also be disposed in the insulating layer 500 to further reduce the denseness of the connection lines disposed in the same layer.

Please refer to FIG. 4, which provides another partial cross-sectional view of the touch display panel 10 in the non-display area 12. In a further embodiment, a part of the first connection line 200 provided in the insulating layer 500 and an orthographic projection of the other part of the first connection line 200 provided on the insulating layer 500 at least partially overlap. The width occupied by the first connection line 200 in the non-display area 12 is further reduced. Wherein, reference numeral 200 in FIG. 4 indicates a part of the first connection line 200 provided in the insulating layer 500, and reference numeral 200w indicates another part of the first connection line 200w provided in the same layer as the second touch electrode 400. It can be understood that an orthographic projection of a part of the second connection line 300 provided in the insulating layer 500 and another part of the second connection line 300 provided outside the insulating layer 500 on the insulating layer 500 at least partially overlaps. The width of the second connecting line 300 in the non-display area 12 is further reduced. Through this structural arrangement, the area of the non-display area 12 is further reduced, and the screen ratio is increased.

Please refer to FIG. 1 again. In a further embodiment, the number of the second sub-touch electrodes 410 is smaller than the number of the first sub-touch electrodes 110, and the first sub-touch electrodes 110 are arranged along the first direction A. The second sub-touch electrodes 410 are arranged along the second direction B. The size of the touch display panel 10 in the second direction B is smaller than the size of the touch display panel 10 in the first direction A. That is, the non-display area 12 on the long side of the touch display panel 10 is reduced. The second sub-touch electrode 410 extends in the first direction A, and the first sub-touch electrode 110 extends in the second direction B.

Referring to FIG. 5, a second embodiment of the present invention provides a touch display panel 10a. In the touch display panel 10a, the first connection line 200 and the second connection line 300 connected to the first sub-touch electrode 110 are provided. The connection method is the same as that of the first embodiment for reducing the width of the non-display area 12. The first sub-touch electrode 110 includes a first end 111 and a second end 112 opposite to each other. The width of the Nth first sub-touch electrode 110 gradually decreases from the first end 111 to the second end 112, and the Nth The width of the +1 first sub-touch electrode 110 gradually decreases from the second end 112 to the first end 111, and the first end 111 of the N-th first sub-touch electrode 110 is adjacent to the N + 1 first sub-touch The first end 110 of the touch electrode 110 is disposed. Where N is an integer. This embodiment provides a self-capacitive touch panel. It can be understood that, because the width of the first sub-touch electrode 110 from the first end 111 to the second end 112 is not consistent, when it is touched, a specific signal is generated for determining its position information. It can be understood that the first sub-touch electrode 110 may be a near triangle, and the Nth first sub-touch electrode 110 and the N + 1th first sub-touch electrode 110 form a near-triangle pair.

Please refer to FIG. 6. The present invention further provides a touch display device 20. The touch display device 20 includes a processor 30 and a touch display panel 10 according to any one of the above embodiments. The first connection line 200 is electrically connected to the processor.器 30。 30. In some embodiments, the second connection line 300 is also electrically connected to the processor 30. The touch display device 20 further includes a bezel 40, wherein the bezel 40 is used to block the non-display area 12 in the touch display panel 10, and the touch display panel 10 provided by the above embodiment of the present invention is adopted. A connection line 200 and a second connection line 300 are disposed below the frame 40. The touch display panel 10 reduces the width of the non-display area 12, thereby reducing the width of the frame 40, so as to increase the screen ratio of the touch display device 20. .

It can be understood that the touch display device 20 may be, but is not limited to, an e-book, a smart phone (such as an Android phone, an iOS phone, a Windows Phone, etc.), a tablet computer, a flexible palmtop computer, a flexible notebook computer, and a mobile Internet device ( MID (Mobile Internet Devices) or wearable devices, or organic light-emitting diodes (OLED) touch display devices, Active Matrix Organic Light Emitting Diodes (AMOLED) Touch display device.

Please refer to FIG. 7 and FIG. 1. The present invention also provides a touch detection method, which is applied to a touch display panel 10. The touch display panel 10 includes a display area 11 and a non-display area 12 disposed on the periphery of the display area 11. The first touch electrode 100 is provided in the area 11. The first touch electrode 100 includes a plurality of first sub-touch electrodes 110 spaced apart from each other. At least two first sub-touch electrodes 110 are the same as the non-display area 12. One first connection line 200 is connected, and the first sub-touch electrodes 110 other than the first sub-touch electrode 110 connected through the same first connection line 200 are electrically connected to the second connection line 300 respectively. Each of the second connection lines 300 is connected to a first sub-touch electrode 110.

The touch detection method includes steps S100 and S200. The details are as follows.

Step S100: Obtain a first signal on the first connection line 200 and a second signal on the second connection line 300. When the first sub-touch electrode 110 connected to the first connection line 200 is touched, a first signal is generated, and since the touch range is larger than the width of one first sub-touch electrode 110, it will touch the adjacent The first sub-touch electrode 110 connected to the second connection line 300 generates a second signal.

In step S200, first position information of a touch operation on the touch display panel 10 is obtained according to the first signal and the second signal. According to the first signal, at least two first sub-touch electrodes 110 connected to the first connection line 200 may be determined, and then according to the second signal, the first sub-touch electrodes 110 connected to the second connection line 300 may be determined to be adjacent to each other. One of the first sub-touch electrodes 110 connected to the first connection line 200 to determine the first sub-touch electrode 110 being touched, and further determine the first of the first sub-touch electrode 110 being touched location information. It can be understood that when the first sub-touch electrodes 110 are arranged in the first direction A of the touch display panel 10, the first position information at this time is position information in the first direction A.

The touch display panel 10 provided by the present invention can reduce the width of the non-display area 12 and increase the screen ratio by connecting at least two first sub-touch electrodes 110 to the same first connection line 200. In the touch detection method used for the touch display panel 10, the first position information is determined by two signals of a first signal and a second signal, so that the position information of the touch can be effectively determined while reducing the connection line. It can be understood that the above touch detection method can be applied to the touch display panel 10 provided by any embodiment of the present invention.

Please refer to FIG. 8 and FIG. 2. It can be understood that, because the size of the first sub-touch electrode 110 in the touch display panel 10 is set between 4-7 mm, it will touch when touched, especially when touched by a finger. The two first sub-touch electrodes 110 are controlled to generate two signals. The following example illustrates how to determine whether the two signals generated are the first signal and the second signal. Assume that in the touch display panel 10, four first sub-touch electrodes 110 constitute a touch electrode group 120. In the touch electrode group 120, the first first sub-touch electrode 110a and the fourth first sub-touch electrode 110d are connected through the same first connection line 200, and the second first sub-touch electrode 110b and the first The three first sub-touch electrodes 110c are respectively connected to the second connection line 300, that is, the (4n + 1) th and (4n + 4) first sub-touch electrodes 110c are connected to the (3n + 1) ) Connection lines, where the (3n + 1) th connection line is the first connection line 200, and the (4n + 2) th first sub-touch electrode 110 is connected to the (3n + 2) th connection line , The (4n + 3) th first sub-touch electrode is connected to the (3n + 3) th connection line, where the (3n + 2) th connection line and the (3n + 3) th connection line are respectively Is the second connecting line 300, where n is 0 or an integer greater than 0. Only two touch electrode groups 120 are shown in FIG. 8 for explanation, and R1, R2, R3 ... RM, RL are used to represent the connecting lines in FIG. 8, where RM corresponds to the value M and RL corresponds to the value L , M and L are integers. The first sub-touch electrodes 110 in FIG. 8 are indicated by 110a, 110b, 110c, 110d, 110e, 110f, 110g, 110h,...

When the touch center touches the area A in FIG. 8, the generated touch signal comes from the connection line RM and the connection line RL, where M is less than L. The process of determining whether the generated two signals are the first signal and the second signal is as follows. Specifically, it includes steps S10, S20, S20a, S30, S30a, S40, S40a, S50, S50a, S60, and S60a.

Please refer to FIG. 9 to determine whether one of M and L is divisible by 3 and the remainder 1 (step S10). When any of M and L cannot be divided by 3 the remainder of 1 is determined to originate from the connection line RM and the connection line RL None of the touch signals include the first signal (step S20a). When one of M and L is divisible by 3 and the remainder is 1, determine whether one of M and L is 1 (step S20). When one of M and L is 1, it means that the touch center is on the touch display panel. The lower edge of 10 determines that the area A is between the first first sub-touch electrode and the second first sub-touch electrode (step S30a). When neither of M and L is 1, it is determined whether one of M and L is Max (step S30), where Max is the total number of the first sub-touch electrodes 110 in the touch display panel, and when M When one of L and L is Max, it means that the touch center is at the upper edge of the touch display panel 10, and it is determined that the area A is between the Max-1 first sub-touch electrode and the Max first sub-touch electrode (Step S40a). When neither of M and L is Max, it is judged whether M can be divided by 3 and the remainder is 1 (step S40). When M cannot be divided by 3 and the remainder is 1, it is determined that the source RM is the second signal from the connection line. The connection line RL is a first signal (step S50a). When M is divisible by 3 and the remainder is 1, determine whether L is divisible by 3 and the remainder is 1 (step S50). When L is not divisible by 3 and the remainder is 1, it is determined that the source RM is the first signal and the source is the connector. RL is the second signal (step S60). When L is divisible by 3 and the remainder is 1, it is determined that the source signal from the connection line RM is the first signal and the source signal from the connection line RL is the first signal (step S60a).

The above is the process of determining the type of signal generated when being touched. After the determination process is completed, the first position of the touch operation on the touch display panel 10 is determined when the determined signal is the first signal and the second signal. Information steps.

In a further embodiment, “obtaining the first position information of the touch operation on the touch display panel 10 according to the first signal and the second signal” includes the first signal corresponding to the first signal, the second signal, and the second signal. The position information of the sub-touch electrode 110 obtains first position information of a touch operation on the touch display panel 10. It can be understood that the position information of the second signal corresponding to the first sub-touch electrode 110 may be stored in advance and retrieved after receiving the second signal.

Please refer to FIG. 1 and FIG. 7 again. In a further embodiment, the touch display panel 10 further includes a second touch electrode 400, and the second touch electrode 400 includes a plurality of second sub-touch electrodes 410 disposed at intervals. The second sub-touch electrode 410 and the first sub-touch electrode 210 are cross-insulated, and the second sub-touch electrode 410 is electrically connected to the third connection line 600. The third connecting line 600 is used to transmit a signal generated when the second sub-touch electrode 410 connected to the second sub-touch electrode 410 is touched to the processor of the touch display panel 10. When the first touch electrode 100 is a driving electrode, the second touch electrode 400 is a sensing electrode. When the first touch electrode 100 is a sensing electrode, the second touch electrode 400 is a driving electrode.

The touch detection method further includes steps S300, S400, and S500. The details are as follows.

Step S300: Obtain a third signal of the third connection line.

In step S400, the second position information of the touch operation on the touch display panel 10 is obtained according to the third signal. It can be understood that when the second sub-touch electrodes 410 are arranged in the second direction B of the touch display panel 10, the second position information is the position information in the second direction B at this time.

Step S500: Obtain coordinate information of a touch operation on the touch display panel 10 according to the first position information and the second position information. The coordinate information is determined according to the obtained position information of the first direction A and the second direction B.

It can be understood that the above touch detection method is applied to a mutual-capacitive touch display panel.

Please refer to FIG. 10 and FIG. 5. In a further embodiment, the first sub-touch electrode 110 includes a first end 111 and a second end 112 opposite to each other. One end 111 gradually decreases toward the second end 112, and the width of the N + 1th first sub-touch electrode 110 gradually decreases from the second end 112 to the first end 111. The first end 111 of the Nth first sub-touch electrode 110 is disposed adjacent to the first end 11 of the N + 1th first sub-touch electrode 110. This embodiment is applied to a self-capacitive touch display panel.

“Getting the first position information of the touch operation on the touch display panel according to the first signal and the second signal” includes step S210, step S220, and step S230. The details are as follows.

Step S210: Determine, according to the intensity values of the first signal and the second signal, the signal with the highest intensity value as the target signal.

Step S220: Determine the target first sub-touch electrode 110 according to the target signal. Specifically, assuming that the signal strength value of the first signal and the second signal is larger than the second signal, that is, the second signal is the target signal, then it is determined that the first sub-touch electrode 110 corresponding to the target signal (the second signal) is Target the first sub-touch electrode. Assuming that the signal strength value of the first signal and the second signal is larger than the first signal, then the first signal corresponds to at least two first sub-touch electrodes 110. At this time, "the target first sub-touch electrode is determined according to the target signal" 110 "includes determining the target first sub-touch electrode 110 according to the position information of the target signal (first signal) and the first sub-touch electrode 110 corresponding to the second signal, where the target first sub-touch electrode 110 is among the target signals. One of the first sub-touch electrodes 110 adjacent to the first sub-touch electrode 110 corresponding to the second signal.

Step S230: Determine first position information of a touch operation on the touch display panel 10 according to a signal corresponding to the target first sub-touch electrode. In this embodiment, the first position information is coordinate information of a touch operation. In the self-capacitive touch panel, the widths of the first sub-touch electrodes 110 from the first end 111 to the second end 112 are inconsistent, so when they are touched, a specific signal is generated for determining their position information.

The above embodiments only express several implementation manners of the present invention, and the descriptions thereof are more specific and detailed, but cannot be understood as limiting the scope of the patent of the present invention. It should be noted that, for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can be made, which all belong to the protection scope of the present invention. Therefore, the protection scope of the invention patent shall be subject to the appended claims.

Claims (19)

1. A touch display panel, characterized in that the touch display panel includes a display area and a non-display area provided on the periphery of the display area, and the display area is provided with a first touch electrode, and the first touch The control electrode includes a plurality of first sub-touch electrodes arranged at intervals, and at least two of the first sub-touch electrodes are connected to the same first connection line provided in the non-display area.
2. The touch display panel according to claim 1, wherein the non-display area includes a first sub-non-display area and a second sub-non-display area, the first sub-non-display area and the second sub-display area The non-display area is provided on both sides of the display area. When the touch display panel includes a plurality of first connection lines, part of the first connection line is provided in the first sub-non-display area, and part of the first connection is Lines are provided in the second sub-non-display area.
3. The touch display panel according to claim 2, wherein a preset number of the first sub-touch electrodes form a touch electrode group, and within the touch electrode group, a same first connection line is used. There is at least one first sub-touch electrode spaced between the connected first sub-touch electrodes, wherein the preset number is an integer greater than or equal to three.
4. The touch display panel according to claim 3, wherein the preset number is equal to 4, and within one touch electrode group, the first one of the first sub-touch electrodes and the fourth one of the first A sub touch electrode is connected through the same first connection line.
5. The touch display panel according to claim 3, wherein the first sub touch electrodes in the touch electrode group except for the first sub touch electrodes connected through the same first connection line are respectively connected with the first sub touch electrodes. A second connection line is electrically connected, a first connection line in the same group of touch electrode groups is disposed in the first sub-non-display area, and a second connection line in the same group of touch electrode groups is disposed in the second sub-non-display area. Display area.
6. The touch display panel according to claim 3, wherein, among two adjacent touch electrode groups, a first connection line of one touch electrode group is disposed on the first sub-non-display Area, a first connection line of another touch electrode group is disposed in the second sub-non-display area.
7. The touch display panel according to claim 6, wherein the first sub touch electrodes in the touch electrode group except for the first sub touch electrodes connected through the same first connection line are respectively connected with the first sub touch electrodes. The second connection line is electrically connected. Among two adjacent touch electrode groups, the second connection line of one touch electrode group is disposed in the first sub-non-display area, and the other touch electrode group is A second connection line is disposed in the second sub-non-display area.
8. The touch display panel according to any one of claims 2 to 7, wherein the first connection lines in the first sub-non-display area or the second sub-non-display area are arranged at the same interval.
9. The touch display panel according to any one of claims 1 to 8, wherein the touch display panel further comprises a second touch electrode, and the second touch electrode includes a plurality of second electrodes disposed at intervals. A sub-touch electrode, the second sub-touch electrode and the first sub-touch electrode are cross-insulated; when the first touch electrode is a driving electrode, the second touch electrode is a sensing electrode; When the first touch electrode is a sensing electrode, the second touch electrode is a driving electrode.
10. The touch display panel according to claim 9, wherein the touch display panel further comprises an insulating layer, and the insulating layer is disposed between the first touch electrode and the second touch electrode , Part of the first connection line is disposed in the insulation layer.
11. The touch display panel according to claim 10, wherein a part of the first connection line provided in the insulation layer and another part of the first connection line provided outside the insulation layer are in the insulation. The orthographic projections on the layers at least partially overlap.
12. The touch display panel according to claim 9, wherein the number of the second sub-touch electrodes is less than the number of the first sub-touch electrodes, and the first sub-touch electrodes are along The first sub-touch electrodes are arranged along the second direction, and the size of the touch display panel in the second direction is smaller than the size of the touch display panel in the first direction.
13. The touch display panel according to any one of claims 1-12, wherein a distance between centers of two adjacent first sub-touch electrodes is 4-7 mm.
14. The touch display panel according to any one of claims 1 to 8, wherein the first sub-touch electrode includes a first end and a second end disposed opposite to each other, and the Nth first sub-touch The width of the control electrode gradually decreases from the first end to the second end, and the width of the N + 1th first sub-touch electrode gradually decreases from the second end to the first end. A first end of the Nth first sub-touch electrode is disposed adjacent to a first end of the N + 1th first sub-touch electrode.
15. A touch display device, wherein the touch display device includes a processor and the touch display panel according to any one of claims 1-14, and the first connection line is electrically connected to the processing Device.
16. A touch detection method applied to a touch display panel is characterized in that the touch display panel includes a display area and a non-display area provided around the display area, and the display area is provided with a first touch An electrode, the first touch electrode includes a plurality of first sub-touch electrodes spaced apart, and at least two of the first sub-touch electrodes are connected to the same first connection line provided in the non-display area, The first sub-touch electrodes other than the first sub-touch electrodes connected through the same first connection line are electrically connected to the second connection line, respectively;

    The touch detection method includes:

    Acquiring a first signal on the first connection line and a second signal on the second connection line;

    First position information of a touch operation on the touch display panel is obtained according to the first signal and the second signal.
17. The touch detection method according to claim 16, wherein the "obtaining first position information of a touch operation on the touch display panel according to the first signal and the second signal" includes :

    The first position information of a touch operation on the touch display panel is obtained according to the first signal, the second signal, and position information of a first sub-touch electrode corresponding to the second signal.
18. The touch detection method according to claim 17, wherein the touch display panel further includes a second touch electrode, and the second touch electrode includes a plurality of second sub-touch electrodes disposed at intervals, The second sub-touch electrode and the first sub-touch electrode are cross-insulated, and the second sub-touch electrode is electrically connected to a third connection line;

    The touch detection method further includes:

    Acquiring the third signal of the third connection line;

    Obtaining second position information of a touch operation on the touch display panel according to the third signal;

    Obtaining coordinate information of a touch operation on the touch display panel according to the first position information and the second position information.
19. The touch detection method according to claim 16, wherein the first sub-touch electrode includes a first end and a second end disposed opposite to each other, and a width of the Nth first sub-touch electrode The first end gradually decreases toward the second end, and the width of the N + 1th first sub-touch electrode gradually decreases from the second end toward the first end; the Nth First ends of the first sub-touch electrodes are disposed adjacent to the first end of the N + 1th sub-touch electrode;

    The "obtaining first position information of a touch operation on the touch display panel according to the first signal and the second signal" includes:

    Determining, according to the intensity values of the first signal and the second signal, that the signal with the highest intensity value is the target signal;

    Determining a target first sub-touch electrode according to the target signal;

    Determining first position information of a touch operation on the touch display panel according to a signal corresponding to the target first sub-touch electrode.

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