A touch panel and a touch method, device and equipment

Abstract

The present application discloses a touch panel and a touch method, device, and equipment, including: multiple touch partitions, the touch partitions including multiple touch electrodes and multiple touch traces connected to the touch electrodes in a one-to-one correspondence; a touch chip and multiple data selectors, the touch chip is connected to the touch trace in one of the touch partitions through one of the data selectors, and the data selector is used to connect the connection between the touch trace in the corresponding touch partition and the touch chip under the control of a selection signal. The present application can turn on one or more touch partitions in each stage during driving, reduce the trace area of ​​each touch partition, reduce the load, and at the same time shorten the driving time, reduce the noise impact of the display panel on the touch, and improve the SNR performance; it is suitable for active pen drive and non-active pen drive, suitable for large-size touch panels, and the technical solution can be implemented through algorithm processing without increasing costs.

Description

Technical Field

[0001] The present application generally relates to the field of touch technology, and specifically relates to a touch panel and a touch method, device, and equipment. Background Art

[0002] With the continuous development of display technology, display devices with touch functions, such as mobile phones, tablet computers, digital cameras, and smart wearable products, are attracting more and more attention. In addition to being able to be touched by fingers, touch panels can also be touched by active pens.

[0003] At present, capacitive touch panels can be divided into add-on touch panels (Add On Mode Touch Panel), embedded touch panels (On Cell Touch Panel) and embedded touch panels (Incell Touch Panel) according to their composition and structure. When used, the active pen signal emitted by the active pen will be transmitted to the touch integrated circuit through the touch panel, and the precise coordinates of the active pen on the touch panel will be obtained after being processed by the touch integrated circuit.

[0004] Due to its flexibility, OLED displays can be used in folding, curling and other forms. In order to achieve further lightweight and thinness, the mainstream solution for small-size touch is On Cell. However, in large-size applications, the On Cell solution cannot meet the touch requirements due to its RC load, SNR and other performance, which limits the application of On Cell in large-size applications.

[0005] For large-size OLED displays, the On Cell solution of the embedded touch panel is integrated on the OLED packaging layer, and is very close to the cathode, GOA, etc. of the OLED display panel. The noise of the OLED display panel will be coupled to the On Cell touch panel, causing the IC to be affected by greater noise when touching, resulting in poor SNR (signal-to-noise ratio) performance of the On Cell of the embedded touch panel. Summary of the invention

[0006] In view of the above defects or deficiencies in the prior art, it is desirable to provide a touch panel and a touch method, device, and apparatus that can reduce the signal-to-noise ratio of the touch panel and shorten the touch cycle.

[0007] In a first aspect, the present application provides a touch panel, comprising:

[0008] A plurality of touch control zones, each of which includes a plurality of touch control electrodes and a plurality of touch control traces connected to the touch control electrodes in a one-to-one correspondence;

[0009] A touch chip and multiple data selectors, the touch chip is connected to the touch wiring in one of the touch partitions through one of the data selectors, and the data selector is used to conduct the connection between the touch wiring in the corresponding touch partition and the touch chip under the control of a selection signal.

[0010] Optionally, the touch electrode includes a plurality of first touch electrodes distributed along a first direction and a plurality of second touch electrodes distributed along a second direction; the touch wiring includes a plurality of first touch wirings and a plurality of second touch wirings, the first touch electrodes are respectively connected to one of the first touch wirings, and the second touch electrodes are respectively connected to one of the second touch wirings.

[0011] Optionally, the data selector includes a plurality of selection switches, and the selection switches are connected to the first touch wiring and / or the second touch wiring in a one-to-one correspondence.

[0012] Optionally, it includes a display area and a non-display area, the first touch electrode and the second touch electrode are located in the display area, and the first touch wiring and the second touch wiring are located in the non-display area.

[0013] Optionally, the number of the touch zones is four, and the touch zones include a first zone and a fourth zone that are diagonally arranged, and a second zone and a third zone that are diagonally arranged, wherein the first zone and the second zone, and the third zone and the fourth zone are arranged side by side.

[0014] In a second aspect, the present application provides a touch method, which is applied to any of the above touch panels, wherein the touch panel is in a non-active pen touch mode, and the method comprises:

[0015] In each of the touch control stages, the touch control chip controls to sequentially turn on the data selector corresponding to at least one of the touch control partitions, and the touch control chip scans the turned-on touch control partitions.

[0016] Optionally, in each of the touch control stages, the touch control chip controls to sequentially turn on the data selectors corresponding to the touch control partitions.

[0017] Optionally, the touch control partitions include a first partition and a fourth partition that are diagonally arranged, and a second partition and a third partition that are diagonally arranged, and a touch control period of one frame includes a first stage and a second stage, and the method includes:

[0018] In the first stage, the touch chip controls the data selectors corresponding to the first partition and the fourth partition to be turned on, and the first partition and the fourth partition are scanned by the touch chip;

[0019] In the second stage, the touch control chip controls the data selectors corresponding to the second partition and the third partition to be turned on, and the turned-on second partition and the third partition are scanned by the touch control chip.

[0020] In a third aspect, the present application provides a touch method, which is applied to the touch panel as described in any one of the above items, and when the touch panel is in an active pen touch mode, the method includes:

[0021] During the first touch control period, the touch control chip controls to turn on each of the data selectors to determine the touch control partition where the active pen touch point is located;

[0022] During the second touch period, the touch chip controls and turns on a data selector corresponding to the touch partition where the active pen touch point is located.

[0023] Optionally, the method includes: during the period when the data selector is turned on, the active pen periodically sends a coding signal to the touch partition, and the touch partition samples the coding signal based on the same period.

[0024] Optionally, the first touch period corresponds to a touch frame period, the second touch period corresponds to a touch frame period next to the first touch period, and the method further includes:

[0025] During the second touch period, while keeping the data selector corresponding to the touch partition where the active pen touch point is located turned on, within the interval in which the active pen sends a coding signal to the touch partition, the touch chip controls the data selector corresponding to at least one of the touch partitions to be turned on in sequence to perform finger touch detection.

[0026] Optionally, the method includes: during the second touch period, within the interval in which the active pen sends a coding signal to the touch partition, the touch chip controls the data selectors corresponding to the touch partitions to be turned on one by one in turn, and the turned-on touch partitions are scanned by the touch chip.

[0027] Optionally, the touch control partitions include a first partition and a fourth partition that are diagonally arranged, and a second partition and a third partition that are diagonally arranged, the second touch control period includes a first coding interval stage and a second coding interval stage, and the method includes:

[0028] In the first coding interval stage, the touch chip controls the data selectors corresponding to the first partition and the fourth partition to be turned on, and the first partition and the fourth partition are scanned by the touch chip;

[0029] In the second coding interval stage, the touch chip controls the data selectors corresponding to the second partition and the third partition to be turned on, and the turned-on second partition and the third partition are scanned by the touch chip.

[0030] In a fourth aspect, the present application provides a touch device, comprising any of the touch panels described above.

[0031] In a fifth aspect, the present application provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements a touch method as described in any one of the above when executing the computer program.

[0032] The technical solution provided by the embodiments of the present application may have the following beneficial effects:

[0033] The touch panel provided in the embodiment of the present application divides the panel into multiple touch partitions, and controls the conduction and shutdown between the corresponding partitions and the driving chip through a data selector. During driving, one or more touch partitions can be turned on in each stage, reducing the routing area of ​​each touch partition turned on, reducing the load, and at the same time shortening the driving time, reducing the noise impact of the display panel on the touch, and improving the SNR performance; it is suitable for active pen drive and non-active pen drive, and is suitable for large-size touch panels. The technical solution can be implemented through algorithm processing without increasing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0035] Figure 1 It is a structural schematic diagram of an existing touch panel;

[0036] Figure 2 A schematic diagram of an active pen SNR test for a conventional touch panel;

[0037] Figure 3 A schematic diagram of the structure of a touch panel provided in an embodiment of the present application;

[0038] Figure 4 A schematic diagram of the connection of a touch zone provided in an embodiment of the present application;

[0039] Figure 5 A schematic diagram of a two-partition structure provided for an embodiment of the present application;

[0040] Figure 6 A schematic diagram of a four-zone structure provided for an embodiment of the present application;

[0041] Figure 7A schematic diagram of a six-zone structure provided for an embodiment of the present application;

[0042] Figure 8 A timing diagram of a touch control method provided in an embodiment of the present application;

[0043] Fig. 9 A timing diagram of another touch control method provided in an embodiment of the present application;

[0044] Fig.10 A schematic diagram of a touch zone conduction provided by an embodiment of the present application;

[0045] Fig.11 A schematic diagram of another touch zone conduction provided by an embodiment of the present application;

[0046] Fig.12 A schematic diagram of the principle of finger touch control provided in an embodiment of the present application;

[0047] Fig.13 A schematic diagram of an active pen touch control method provided in an embodiment of the present application;

[0048] Fig.14 A timing diagram of an active pen touch control method provided in an embodiment of the present application;

[0049] Fig.15 A timing diagram of an active pen coding method provided in an embodiment of the present application;

[0050] Fig.16 A schematic diagram of the principle of active pen and finger touch provided in an embodiment of the present application;

[0051] Fig.17 A timing diagram of another active pen touch method provided in an embodiment of the present application. DETAILED DESCRIPTION

[0052] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0053] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0054] Figure 1The figure shows an existing On Cell structure, where the touch electrodes are located in the display area and the touch wiring is located in the non-display area. When the display panel size is large (>14.0 inches), the edge wiring 01 and 02 have large resistances, resulting in a large RC load, which exacerbates the poor display phenomenon. In addition, since the On Cell solution is integrated on the OLED encapsulation layer and is very close to the cathode and GOA of the OLED display panel, the noise of the OLED display panel will be coupled to the On Cell touch panel, causing the IC to be affected by a large noise when touching, resulting in poor SNR (signal-to-noise ratio) performance of the On Cell of the embedded touch panel.

[0055] In addition, in a high noise environment, the SNR test of the large-size On Cell active pen is as follows: Figure 2 ,It can be found that the noise generated by the large size OLED is equivalent to the ,active pen coupling signal, and the SNR performance is poor, which affects its touch ,performance, especially the active pen performance.

[0056] Please see Figure 3 , the present application provides a touch panel, comprising:

[0057] A plurality of touch control zones 1, each of the touch control zones 1 comprising a plurality of touch control electrodes 2 and a plurality of touch control traces 3 connected to the touch control electrodes 2 in a one-to-one correspondence;

[0058] A touch chip 5 and multiple data selectors 4, the touch chip 5 is connected to the touch wiring 3 in one of the touch partitions 1 through one of the data selectors 4, and the data selector 4 is used to conduct the connection between the touch wiring 3 in the corresponding touch partition 1 and the touch chip 5 under the control of a selection signal.

[0059] Among them, the touch electrode 2 includes a plurality of first touch electrodes 21 distributed along a first direction X and a plurality of second touch electrodes 22 distributed along a second direction Y; the touch wiring 3 includes a plurality of first touch wirings 31 and a plurality of second touch wirings 32, the first touch electrodes 21 are respectively connected to one of the first touch wirings 31, and the second touch electrodes 22 are respectively connected to one of the second touch wirings 32.

[0060] In the embodiment of the present application, the touch panel includes a display area AA and a non-display area corresponding to the display panel, the first touch electrode 21 and the second touch electrode 22 are located in the display area AA, and the first touch wiring 31 and the second touch wiring 32 are located in the non-display area.

[0061] In the present application, the touch line 3 is located in the non-display area and is composed of a plurality of fold lines, each of which may extend along the first direction X or the second direction Y. For example, each touch line 3 includes a first fold line 13 and a second fold line 14, wherein a first end of the first fold line 13 is connected to the touch electrode 2 of the touch zone 1, and a second end of the second fold line 14 is bent along the second direction Y and extends to the circuit area.

[0062] The non-display area includes a circuit area, and the circuit area includes a data selector 4 (Multiplexer, MUX for short), a touch chip 5 and a binding pin area 7. The binding pin area 7205 can be provided with a plurality of pins (PINs), one end of the data selector 4 is connected to the first touch trace 31 or the second touch trace 32, and the other end is connected to the binding pin area 7. The plurality of pins are configured to be connected to the touch chip IC5 by binding a flexible printed circuit board 8 (FPC). In some possible implementations, the touch chip 5 can be provided as a touch and display driver integrated circuit (Touch and Display Driver Integration, TDDI for short).

[0063] The touch chip 5 is connected to the data selector 4, and the data selector 4 is controlled to be turned on and off by an input control signal, so as to realize the connection between the touch chip 5 corresponding to the data selector 4 and the first touch electrode 21 and the second touch electrode 22; the touch chip 5 is used to provide scanning signals and sensing signals, and receive sensing signals at fixed intervals to locate the corresponding touch position.

[0064] Figure 4 , a connection mode of a touch chip 5 is exemplarily shown, and the touch chip 5 includes a touch driving circuit 51, a display driving circuit 52, a power chip 53, and other circuits that need to be output to the main circuit board of the display device. The data selector 4 is connected to the touch driving circuit 51 through the binding pin area 7, the touch driving circuit 51 is connected to the display driving circuit 52 through the GPIO channel, and the display driving circuit 52 is connected to the control end of the data selector 4 to provide a selection signal for the data selector 4, and the on and off of the data selector 4 is controlled by the selection signal.

[0065] In the embodiment of the present application, the first touch electrode 21 and the second touch electrode 22 are in strips, the first touch electrode 21 can be a scanning electrode, and the second touch electrode 22 can be a sensing electrode, which is described in this example. Each first touch electrode 21 can include a plurality of first transparent electrodes sequentially connected along a first direction X, and each second touch electrode 22 can include a plurality of second transparent electrodes sequentially connected along a second direction Y. In an exemplary embodiment, the first transparent electrode, the second transparent electrode touch electrode 2 can be a regular pattern, for example, a rectangle, a rhombus, a triangle or a polygon.

[0066] It should be noted that the first direction X is different from the second direction Y. The first direction X may be the row direction of the touch panel, and the second direction Y may be the column direction of the touch panel. For example, the first direction X may be a vertical direction, or a direction having a set angle with the vertical direction, and the second direction Y may be a horizontal direction, or a direction having a set angle with the horizontal direction. The present disclosure does not limit this. In some embodiments, the first direction X and the second direction Y may be interchangeable.

[0067] In different embodiments of the present application, the touch control area 1 can be divided in different ways, including dividing the touch control area 1 by the layout of the first touch control electrode 21, dividing the touch control area 1 by the layout of the second touch control electrode 22, or dividing the touch control area 1 by the layout of the first touch control electrode 21 and the second touch control electrode 22. In the embodiment of the present application, there is no limit on the number of touch control areas 1, and it can include even-numbered areas such as two areas and four areas. Correspondingly, the data selector 4 includes a plurality of selection switches 41, and the selection switches 41 are connected to the first touch control wiring 31 and / or the second touch control wiring 32 in a one-to-one correspondence.

[0068] like Figure 5 As shown, the division of the two regions includes a left half region 11 + a right half region 12. For example, the left half region 11 includes a plurality of first touch electrodes 21 distributed along the row direction and a plurality of second touch electrodes 22 distributed along the column direction; and each first touch electrode 21 is respectively connected to a first touch line 31, and each second touch electrode 22 is respectively connected to a second touch line 32. Similarly, the distribution of the touch electrodes 2 in the right half region 12 is the same as that of the left half screen.

[0069] In an embodiment of the present application, the number of the data selectors 4 is the same as the number of the touch zones 1, and each of the data selectors 4 includes a first selector connected to the first touch wiring 31 and a second selector connected to the second touch wiring 32, wherein the first selector includes a plurality of first selection switches 41 and a plurality of second selection switches 41, the first selection switches 41 are connected to the first touch wiring 31 in a one-to-one correspondence, and the second selection switches 41 are connected to the second touch wiring 32 in a one-to-one correspondence.

[0070] like Figure 7 As shown, the four-partition division method includes that the touch zone 1 includes a first zone A and a fourth zone D which are diagonally arranged, and a second zone B and a third zone C which are diagonally arranged, wherein the first zone A and the second zone B, and the third zone C and the fourth zone D are arranged side by side.

[0071] Each of the touch control zones 1 includes a plurality of first touch control electrodes 21 distributed along the row direction and a plurality of second touch control electrodes 22 distributed along the column direction; and each first touch control electrode 21 is connected to a first touch control wiring 31 , and each second touch control electrode 22 is connected to a second touch control wiring 32 .

[0072] In the embodiment of the present application, the number of the data selectors 4 (four) is the same as the number of the touch zones 1, and each of the data selectors 4 includes a first selector connected to the first touch wiring 31 and a second selector connected to the second touch wiring 32, wherein the first selector includes a plurality of first selection switches 41 and a plurality of second selection switches 41, the first selection switches 41 are connected to the first touch wiring 31 in a one-to-one correspondence, and the second selection switches 41 are connected to the second touch wiring 32 in a one-to-one correspondence.

[0073] like Figure 7 As shown, the division method of six partitions (or more partitions) is based on the division method of two partitions. Three or more partitions can be arranged on the left and right half areas respectively to form an even-numbered area. The present application does not limit the number of touch partitions 1.

[0074] Each touch control area 1 includes a plurality of first touch control electrodes 21 distributed along the row direction, and the first touch control electrodes 21 in different touch control areas 1 are insulated from each other. The touch panel includes a plurality of second touch control electrodes 22 distributed along the column direction, and different areas share the same second touch control electrode 22. In addition, each first touch control electrode 21 is connected to a first touch control wiring 31, and each second touch control electrode 22 is connected to a second touch control wiring 32.

[0075] In an embodiment of the present application, the number of the data selectors 4 (six) is the same as the number of the touch zones 1, and each of the data selectors 4 includes a first selector connected to the first touch wiring 31, wherein the first selector includes a plurality of first selection switches 41 and a plurality of second selection switches 41, and the first selection switches 41 are connected to the first touch wiring 31 one-to-one.

[0076] It should be noted that the number of touch control zones 1 needs to be selected according to the supported channels of the touch control chip 5, and different selections can be made depending on the device or application scenario. Assume that each touch control zone 1 includes n first touch control electrodes 21 distributed along the first direction X and m second touch control electrodes 22 distributed along the second direction Y, and each first touch control electrode 21 is connected to a first touch control trace 31, and each second touch control electrode 22 is connected to a second touch control trace 32.

[0077] The first touch lines 31 are Rx0, Rx1, Rx2, Rx3, Rx4, Rx5, Rx6 to Rxn-1, and the second touch lines 32 are Tx0, Tx1, Tx2, Tx3, Tx4 to Txm-1, where n and m are positive integers greater than 1. If the m+n touch electrodes 2 are divided into 4 partitions and driven separately, the touch chip 5 needs to support 4*(m+n) channel scans. If divided into 2 partitions, the touch chip 5 needs to support 2*(m+n) channel scans.

[0078] The present application provides a touch method, which is applied to any of the above touch panels, wherein the touch panel is in a non-active pen touch mode (finger touch mode), and the method comprises:

[0079] In each of the touch control stages, the touch control chip 5 controls the data selector 4 corresponding to at least one of the touch control partitions 1 to be turned on in sequence, and the turned-on touch control partitions 1 are scanned by the touch control chip 5 .

[0080] In one embodiment of the present application, the method includes: in each touch control stage, the touch control chip 5 controls the data selector 4 corresponding to one touch control partition 1 to be turned on in sequence, and the corresponding timing diagram is as follows: Figure 8 shown.

[0081] In another embodiment of the present application, the method includes: in each of the touch stages, the touch chip 5 controls the data selectors 4 corresponding to the multiple touch partitions 1 to be turned on in sequence, wherein the multiple touch partitions 1 turned on each time are touch partitions 1 that are not adjacent in position (left half area + right half area).

[0082] It should be noted that by driving multiple partitions simultaneously, the requirements for the driving channels on the touch chip 5 can be reduced, and the driving time can be reduced. In addition, the multiple touch partitions 1 that are turned on each time are non-adjacent touch partitions 1, for example, located at diagonal positions. By adopting a combination of long + short touch lines 3 that turn on the touch partitions 1, the length of the edge lines can be reduced, the load can be reduced, the touch process can be prevented from being affected by the cathode, GOA, etc. of the display module, the noise can be reduced, and the signal-to-noise ratio SNR can be improved.

[0083] In the embodiment of the present application, a four-partition touch panel is used as an example for detailed description. The touch partition 1 includes a first partition A and a fourth partition D arranged diagonally, and a second partition B and a third partition C arranged diagonally. A touch frame period includes a first stage t1 and a second stage t2. The corresponding timing diagram is as follows Fig. 9 As shown, the method includes:

[0084] In the first stage t1, the touch chip 5 controls the data selector 4 corresponding to the first partition A and the fourth partition D to be turned on, and the first partition A and the fourth partition D are scanned by the touch chip 5;

[0085] In the second stage t2 , the touch chip 5 controls the data selectors 4 corresponding to the second partition B and the third partition C to be turned on, and the turned-on second partition B and the third partition C are scanned by the touch chip 5 .

[0086] For example, in a touch cycle T, TFT1 and TFT4 are first driven to be turned on, and regions A and D are driven, such as Fig.10 Then turn on TFT2 and TFT3 to drive the B and C areas, as shown in Fig.11 When the corresponding TFT is turned on, the first touch electrode 21 drives part of the channels or all of the channels through the first touch wiring 31 , and the second touch electrode 22 cooperates with the first touch electrode 21 to synchronously sense the signal and sends the sensed signal to the touch chip 5 through the second touch wiring 32 .

[0087] When the touch panel is in the non-active pen touch mode, that is, when the touch panel is touched by a finger, the touch of the finger will cause the self-capacitance of the corresponding touch electrode 2 to change, and the external control device can determine the position of the finger according to the capacitance change of the touch electrode 2, such as Fig.12 shown.

[0088] In the embodiment of the present application, the data selector 4 includes a plurality of selection switches 41, and the selection switches 41 are connected to the first touch wiring 31 and the second touch wiring 32 in a one-to-one correspondence. The touch chip 5 forms a plurality of drive channels and a plurality of sensing channels, each drive channel is connected to a selection switch 41, and a first touch wiring 31 is connected to the first touch electrode 21 through the selection switch 41. Each sensing channel is connected to a selection switch 41, and a second touch wiring 32 is connected to the second touch electrode 22 through the selection switch 41. The first touch electrode 21 is used as a scanning electrode, and the second touch electrode 22 is used as a sensing electrode. The second touch electrode 22 and the first touch electrode 21 form a coupling capacitor at the position where they intersect.

[0089] When the touch display module detects the user's touch, the touch chip 5 controls the data selector 4 to turn on the first partition A and the second partition B, and sequentially scans multiple drive channels for the first partition A and the second partition B, and inputs scanning signals to each first touch electrode 21 in turn. Then, the sensing signals generated by coupling the scanning signals on each second touch electrode 22 are different.

[0090] Specifically, the touch chip 5 controls the data selectors 4 corresponding to the first partition A and the fourth partition D to be turned on, and the data selectors 4 corresponding to the second partition B and the third partition C to be turned off. When the touch chip 5 controls the scanning of the first row, the touch chip 5 provides a scanning signal (i.e., row scanning) for the first drive channel; then, the touch chip 5 receives the sensing signals output by multiple sensing channels (i.e., column scanning), and determines whether there is a touch point in the first row according to the sensing signals output by multiple sensing channels. If there is a touch point, the information of the touch point is obtained, and the second row is continued to be scanned; if there is no touch point, the second row is directly scanned. This cycle is repeated until the last row is scanned, and the global scan of the first partition A and the third partition C is completed. The touch chip 5 controls the data selectors 4 corresponding to the first partition A and the fourth partition D to be turned off, and the data selectors 4 corresponding to the second partition B and the third partition C are turned on.

[0091] It is understandable that the scanning drive mode of the touch partition 1 is not limited in the embodiment of the present application, and a variety of different scanning modes in the prior art can be adopted, and the present application does not limit the frequency of the scanning drive. For example, for the first partition A and the third partition C, the first touch electrodes 21 (second touch electrodes 22) of the same order can be used as a group, and the first touch electrodes 21 of the same group send scanning signals of the same phase to realize simultaneous scanning of the first touch electrodes 21 of the same group, thereby accelerating the scanning speed, shortening the scanning time of each frame, and improving the reporting frequency of the touch display panel.

[0092] The present application provides a touch control method, which is applied to the touch panel as described in any one of the above items. When the touch panel is in an active pen touch mode, Figure 13-14 As shown, the method includes:

[0093] During the first touch period T1, the touch chip 5 controls the data selectors 4 to be turned on to determine the touch zone 1 where the touch point of the active pen 6 is located;

[0094] During the second touch period T2 , the touch chip 5 controls and turns on the data selector 4 corresponding to the touch partition 1 where the touch point of the active pen 6 is located.

[0095] Among them, during the first touch period T1 and the second touch period T2, the touch method of the active pen 6 includes: during the conduction period of the data selector 4, the active pen 6 periodically sends a coding signal to the touch partition 1, and the touch partition 1 samples the coding signal based on the same period.

[0096] The active pen 6 is provided with a power switch. When the active pen 6 is used to touch the touch panel, the power switch on the active pen 6 needs to be turned on. When the power switch on the active pen 6 is turned on, a signal is sent to the touch panel. The touch panel determines the mode of the touch panel according to whether the signal of the power switch being turned on is detected. When the touch panel detects the signal of the power switch being turned on, it is determined that the touch panel is in the active pen touch mode; and when the touch panel does not detect the signal of the power switch being turned on, it is determined that the touch panel is in the non-active pen touch mode.

[0097] The coding signal is used by the touch panel to determine the position information of the active pen 6 on the touch panel. The active pen 6 is equipped with a corresponding signal generator, which can emit a coding signal of a specific frequency. This coding signal serves as the transmitting electrode of the active pen 6. When the active pen 6 is close to the conventional touch panel, the touch electrode 2 on the touch panel serves as a receiving electrode to receive the signal emitted by the active pen 6, thereby detecting the corresponding position of the active pen 6. At the same time, if the distance between the active pen 6 and the touch panel is adjusted, the signal received by the receiving electrode will also change accordingly.

[0098] It can be understood that in the embodiment of the present application, the first touch period T1 may refer to a touch period of a frame or a half-frame of a touch period of the touch panel, and the present application does not limit this. When applied, it is determined according to the device, application scenario or refresh frequency, etc. Exemplarily, the first touch period T1 corresponds to a touch period of a frame, and the second touch period T2 corresponds to the next touch period of the first touch period T1.

[0099] In the embodiment of the present application, the active pen 6 periodically sends a coding signal to the touch panel, such as Fig.15As shown, for example, in the coding period p-1, coding period p or coding period p+1, the active pen 6 sends a coding signal to the touch panel during the time period shown by the shadow, and is idle during the interval time of the coding period. The touch panel samples the coding signal based on the same cycle.

[0100] It should be noted that, in this embodiment, when the touch panel is in non-active pen touch mode (finger touch mode), the first touch electrode 21 is used to receive the scanning signal input by the touch chip 5, and the second touch electrode 22 is used to couple the scanning signal to generate a sensing signal, and the touch chip 5 determines the touch position of the finger according to the sensing signal.

[0101] When the touch panel is in the active pen touch mode, the first touch electrode 21 and the second touch electrode 22 are both used as the touch electrode 2 of the active pen 6. The first touch electrode 21 and the second touch electrode 22 are used to couple the coding signal provided by the active pen 6 to generate a coding sensing signal. The touch chip 5 can determine the touch position of the active pen 6 according to the coding sensing signal. The touch chip 5 determines the first direction X coordinate of the touch position in the active pen touch mode according to the first sensing signal sent by the first touch line 31, and the touch chip 5 determines the second direction Y coordinate of the touch position in the active pen touch mode according to the second sensing signal sent by the second touch line 32.

[0102] In this embodiment, all TFT switches are turned on in the first touch period T1 to turn on each touch zone 1 on the entire touch panel. After the position of the active pen 6 is detected (for example, zone B), the TFT switches (TFT1, TFT3, TFT4) of other zones are turned off in the second touch period T2, and only TFT2 of zone B is turned on. Figure 7 As shown in the timing diagram, the driving time is reduced, and the load and noise are also reduced, thereby improving the SNR performance.

[0103] In the embodiment of the present application, during the touch control period of the active pen 6, when a finger touches the touch panel, finger touch detection can also be performed, such as Figure 16-17 As shown, the method also includes:

[0104] During the second touch period T2 , within the interval when the active pen 6 sends a coding signal to the touch partition 1 , finger touch detection is performed by turning on the data selector 4 corresponding to the touch partition 1 .

[0105] In the embodiment of the present application, the active pen 6 periodically sends a coding signal to the touch panel. For example, in the coding period p-1, the coding period p or the coding period p+1, the active pen 6 sends a coding signal to the touch panel during the time period shown by the shaded period, and the touch panel samples the coding signal based on the same period; and in the interval time of the coding period, the chip controls the corresponding touch partition 1 to be turned on, and inputs the scanning signal to each first touch electrode 21 in the turned-on touch partition 1 in turn, and receives the sensing signal through the second touch electrode 22.

[0106] Exemplarily, the method includes: during the second touch period T2, while keeping the data selector 4 corresponding to the touch partition 1 where the touch point of the active pen 6 is located turned on, within the interval in which the active pen 6 sends a coding signal to the touch partition 1, the touch chip 5 controls the data selector 4 corresponding to at least one of the touch partitions 1 to be turned on in sequence to perform finger touch detection.

[0107] Exemplarily, the method includes: during the second touch period T2, within the interval in which the active pen 6 sends a coding signal to the touch partition 1, the touch chip 5 controls the data selector 4 corresponding to each touch partition 1 to be turned on in sequence, and the turned-on touch partition 1 is scanned by the touch chip 5.

[0108] Exemplarily, the touch zone 1 includes a first zone A and a fourth zone D which are diagonally arranged, and a second zone B and a third zone C which are diagonally arranged, the second touch period T2 includes a first coding interval stage and a second coding interval stage, and the method includes:

[0109] In the first coding interval stage, the touch chip 5 controls the data selector 4 corresponding to the first partition A and the fourth partition D to be turned on, and the first partition A and the fourth partition D are scanned by the touch chip 5;

[0110] In the second coding interval stage, the touch chip 5 controls the data selector 4 corresponding to the second partition B and the third partition C to be turned on, and the turned-on second partition B and the third partition C are scanned by the touch chip 5 .

[0111] It should be noted that in this embodiment, for the principle of the finger touch driving method when the touch panel is in the active pen touch mode, please refer to the description of the finger touch driving method when the touch panel is in the non-active pen touch mode, and this application will not repeat them one by one here.

[0112] In this embodiment, all the TFT switches of each touch partition 1 on the entire touch panel are turned on during the first touch period T1 (one frame). After the position of the active pen 6 is detected (for example, partition B), during the second touch period T2 (next frame), the TFT switches (TFT1, TFT3, TFT4) of other partitions are turned off during the coding period, and only TFT2 of partition B is turned on. During the coding interval, TFT1 and TFT4 are first driven to drive areas A and D. Then TFT2 and TFT3 are turned on to drive areas B and C; during the corresponding TFT opening period. See the timing diagram Figure 8 As shown, the driving time is reduced, and the load and noise are also reduced, thereby improving the SNR performance.

[0113] It can be understood that when the same touch partition includes both active pen touch operations and finger touch operations (the active pen and the finger perform touch operations in the second partition B at the same time), the coordinates corresponding to all sensing signals can be divided according to the signal type sensed by the touch electrode to distinguish the touch trajectory of the active pen and the touch trajectory of the finger in the same sub-touch area, thereby realizing touch operations of multiple pens and fingers in the same touch area at the same time.

[0114] The present application provides a touch device, including a touch panel as described above. It is understandable that the On Cell technology is used as an example in the embodiments of the present application for exemplary description, but the present application is not limited thereto, and the touch panel can also be applied to other touch display technologies. For example, it is set in an add-on touch (metal-mesh, ITO) solution.

[0115] The touch device provided in the embodiments of the present disclosure may be any product or component with display or touch functions, such as electronic paper, mobile phones, tablet computers, televisions, monitors, notebook computers, digital photo frames, and navigators.

[0116] The present application provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements any one of the above touch control methods when executing the computer program.

[0117] The present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a computer to execute any of the above touch control methods.

[0118] In the embodiments of the present disclosure, the processor may be implemented by any circuit having information processing capability, such as a general-purpose integrated circuit chip or a dedicated integrated circuit chip, for example, the integrated circuit chip may be arranged on a mainboard, for example, a storage medium and a power supply circuit may also be arranged on the mainboard; in addition, the processor may also be implemented by a circuit or by software, hardware (circuit), firmware or any combination thereof, for example, by a field programmable gate array (FPGA). In the embodiments of the present disclosure, the processor may include various computing structures, such as a complex instruction set computer (CISC) structure, a reduced instruction set computer (RISC) structure or a structure that implements a combination of multiple instruction sets. In some embodiments, the processor may also be a central processing unit, a microprocessor, such as an X86 processor, an ARM processor, or may be a graphics processing unit (GPU), or may be a digital processing unit (DSP), etc.

[0119] In the embodiments of the present disclosure, the storage medium may be provided on the above-mentioned mainboard, for example, and the storage medium may store instructions and / or data executed by the processor, and store data generated by running the instructions, etc. The generated data may be structured data or unstructured data, etc. For example, the storage medium may include one or more computer program products, and the computer program products may include various forms of computer-readable memory, such as volatile memory and / or non-volatile memory. The volatile memory may include, for example, a random access memory (RAM) and / or a cache memory (cache), etc. The non-volatile memory may include, for example, a read-only memory (ROM), a magnetic disk, an optical disk, a semiconductor memory (such as a flash memory, a resistive random access memory, etc.), etc. One or more computer program instructions may be stored on the computer-readable memory, and the processor may execute the program instructions to implement the desired functions (implemented by the processor) in the embodiments of the present disclosure.

[0120] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0121] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0122] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art in the technical field of the present invention. The terms used herein are only for describing specific implementation purposes and are not intended to limit the present invention. Terms such as "setting" and the like appearing in this article can mean that one component is directly attached to another component, or that one component is attached to another component through an intermediate. Features described in this article in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable in the other embodiment or otherwise specified.

[0123] The present invention has been described through the above-mentioned embodiments, but it should be understood that the above-mentioned embodiments are only for the purpose of example and description, and are not intended to limit the present invention to the described embodiments. It can be understood by those skilled in the art that more variations and modifications can be made according to the teachings of the present invention, and these variations and modifications all fall within the scope of the protection claimed by the present invention.

Claims

1. A touch panel, characterized in that: include: A plurality of touch control zones, each of which includes a plurality of touch control electrodes and a plurality of touch control traces connected to the touch control electrodes in a one-to-one correspondence; A touch chip and a plurality of data selectors, wherein the touch chip is connected to the touch wiring in one of the touch zones through one of the data selectors, and the data selector is used to conduct the connection between the touch wiring in the corresponding touch zone and the touch chip under the control of a selection signal; The number of the touch zones is four, and the touch zones include a first zone and a fourth zone arranged diagonally, and a second zone and a third zone arranged diagonally, wherein the first zone and the second zone, and the third zone and the fourth zone are arranged side by side.

2. The touch panel according to claim 1, characterized in that: The touch electrodes include a plurality of first touch electrodes distributed along a first direction and a plurality of second touch electrodes distributed along a second direction; the touch wiring includes a plurality of first touch wirings and a plurality of second touch wirings, the first touch electrodes are respectively connected to one of the first touch wirings, and the second touch electrodes are respectively connected to one of the second touch wirings.

3. The touch panel according to claim 2, characterized in that: The data selector includes a plurality of selection switches, and the selection switches are connected to the first touch wiring and / or the second touch wiring in a one-to-one correspondence.

4. The touch panel according to claim 2, characterized in that: It comprises a display area and a non-display area, the first touch electrode and the second touch electrode are located in the display area, and the first touch wiring and the second touch wiring are located in the non-display area.

5. A touch control method, characterized in that: Applied to the touch panel according to any one of claims 1 to 4, the touch panel is in a non-active pen touch mode, and the method comprises: In each of the touch control stages, the touch control chip controls to sequentially turn on the data selector corresponding to at least one of the touch control partitions, and the touch control chip scans the turned-on touch control partitions.

6. The touch control method according to claim 5, characterized in that: In each of the touch control stages, the touch control chip controls the data selectors corresponding to the touch control partitions to be turned on in sequence.

7. The touch control method according to claim 5, characterized in that: The touch control zones include a first zone and a fourth zone arranged diagonally, and a second zone and a third zone arranged diagonally, a touch control period of one frame includes a first stage and a second stage, and the method includes: In the first stage, the touch chip controls the data selectors corresponding to the first partition and the fourth partition to be turned on, and the first partition and the fourth partition are scanned by the touch chip; In the second stage, the touch control chip controls the data selectors corresponding to the second partition and the third partition to be turned on, and the turned-on second partition and the third partition are scanned by the touch control chip.

8. A touch control method, characterized in that: Applied to the touch panel according to any one of claims 1 to 4, when the touch panel is in an active pen touch mode, the method comprises: During the first touch control period, the touch control chip controls to turn on each of the data selectors to determine the touch control partition where the active pen touch point is located; During the second touch period, the touch chip controls and turns on a data selector corresponding to the touch partition where the active pen touch point is located.

9. The touch control method according to claim 8, characterized in that: The method comprises: during the conduction period of the data selector, the active pen periodically sends a coding signal to the touch control partition, and the touch control partition samples the coding signal based on the same period.

10. The touch control method according to claim 9, characterized in that: The first touch period corresponds to a touch frame period, and the second touch period corresponds to a touch frame period next to the first touch period. The method further includes: During the second touch period, while keeping the data selector corresponding to the touch partition where the active pen touch point is located turned on, within the interval in which the active pen sends a coding signal to the touch partition, the touch chip controls the data selector corresponding to at least one of the touch partitions to be turned on in sequence to perform finger touch detection.

11. The touch control method according to claim 10, characterized in that: The method includes: during the second touch period, within the interval in which the active pen sends a coding signal to the touch partition, the touch chip controls the data selectors corresponding to the touch partitions to be turned on in sequence, and the turned-on touch partitions are scanned by the touch chip.

12. The touch control method according to claim 10, characterized in that: The touch control zones include a first zone and a fourth zone arranged diagonally, and a second zone and a third zone arranged diagonally, the second touch control period includes a first coding interval stage and a second coding interval stage, and the method includes: In the first coding interval stage, the touch chip controls the data selectors corresponding to the first partition and the fourth partition to be turned on, and the first partition and the fourth partition are scanned by the touch chip; In the second coding interval stage, the touch chip controls the data selectors corresponding to the second partition and the third partition to be turned on, and the turned-on second partition and the third partition are scanned by the touch chip.

13. A touch device, characterized in that: It comprises a touch panel as described in any one of claims 1 to 4.

14. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the touch control method according to any one of claims 5 to 12 is implemented.

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