A touch panel, a wireless charging method, a touch chip, and an electronic device

Abstract

The present invention provides a touch panel, a wireless charging method, a touch chip, and an electronic device. The touch panel includes: a plurality of touch electrodes; a control module connected to the plurality of touch electrodes. The control module is configured to control at least some of the touch electrodes to perform touch detection, or control at least some of the touch electrodes to form one or more transmitting coils, and wirelessly charge an electronic device having a receiving coil through the transmitting coils. Or, the control module is configured to control at least some of the touch electrodes to perform touch detection, and control at least some of the remaining touch electrodes to form one or more transmitting coils, and wirelessly charge an electronic device having a receiving coil through the transmitting coils, so that an electronic device such as a smartphone can be charged by an electronic device such as a laptop computer. Furthermore, it is not necessary to carry additional charging devices such as a power adapter, a power bank, or a wireless charging stand, improving the convenience of charging electronic devices such as smartphones.

Description

Technical Field

[0001] The present invention relates to the field of electronic technologies, and more particularly, to a touch panel, a wireless charging method, a touch chip, and an electronic device. Background Art

[0002] With the increasing popularity of products such as smart phones, smart computers, and smart wearables among consumers, various functions such as communication, positioning, entertainment, and payment are highly concentrated on mobile devices. The activation of various functions will inevitably pose a great challenge to the power consumption of the battery. In the current situation where the battery capacity is limited, the convenience of charging is the greatest demand of consumers at present.

[0003] Taking smart phones as an example, the existing charging methods are mainly divided into the following categories: First, charging through a power adapter; second, charging through an external battery such as a power bank; third, charging through a separate wireless charging stand. However, in scenarios such as business trips, no matter which charging method is used, consumers need to carry additional charging devices such as a power adapter, a power bank, or a wireless charging stand, which affects the convenience of charging. Summary of the Invention

[0004] In view of this, the present invention provides a touch panel, a wireless charging method, a touch chip, and an electronic device to achieve convenient charging.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A touch panel, comprising:

[0007] A plurality of touch electrodes;

[0008] A control module connected to the plurality of touch electrodes;

[0009] The control module is configured to control at least some of the touch electrodes to perform touch detection;

[0010] Or, the control module is configured to control at least some of the touch electrodes to form one or more transmitting coils, and wirelessly charge an electronic device having a receiving coil through the transmitting coils;

[0011] Or, the control module is configured to control at least some of the touch electrodes to perform touch detection, and control at least some of the remaining touch electrodes to form one or more transmitting coils, and wirelessly charge an electronic device having a receiving coil through the transmitting coils.

[0012] Optionally, the touch electrodes include driving electrodes and sensing electrodes, and the driving electrodes and the sensing electrodes are arranged in the same layer or in different layers;

[0013] The touch control electrode forming the transmitting coil is the driving electrode or the sensing electrode.

[0014] Optionally, the shape of the transmitting coil is a figure-eight shape.

[0015] Optionally, the shape of the touch control electrode forming the transmitting coil is a strip-shaped electrode with a square-shaped bending area; the touch control electrodes forming the transmitting coil include a first touch control electrode to a K-th touch control electrode arranged in sequence, where K is an integer greater than 1;

[0016] When the first touch control electrode to the K-th touch control electrode form the transmitting coil, the head end of the first touch control electrode is connected to the control module, the tail end of the K-th touch control electrode is connected to the control module, and the tail end of the i-th touch control electrode is connected to the head end of the (i + 1)-th touch control electrode, where i is any integer between 1 and K - 1.

[0017] Optionally, the touch control electrodes forming the transmitting coil include a first touch control electrode to a K-th touch control electrode arranged in sequence, where K is an integer greater than 1;

[0018] When the first touch control electrode to the K-th touch control electrode form the transmitting coil, the head end of the first touch control electrode is connected to the control module, the tail end of the first touch control electrode is connected to the tail end of the K-th touch control electrode, the head end of the K-th touch control electrode is connected to the head end of the second touch control electrode, the tail end of the i-th touch control electrode is connected to the tail end of the (K - i + 1)-th touch control electrode, and the head end of the r-th touch control electrode is connected to the head end of the (K - r + 2)-th touch control electrode;

[0019] Among them, when K is an even number, the head end of the (K / 2 + 1)-th touch control electrode is connected to the control module, and when K is an odd number, the tail end of the (K + 1) / 2-th touch control electrode is connected to the control module, where i is any integer between 2 and K, and r is any integer between 3 and K.

[0020] Optionally, the distance between adjacent touch control electrodes is 1 mm - 4 mm.

[0021] A touch control chip is used to connect to the control module of the touch panel as described above and control the touch panel to perform touch detection or wireless charging, or perform touch detection and wireless charging simultaneously.

[0022] A wireless charging method is applied to the touch panel as described in any one of the above, and the method includes:

[0023] Determine whether a touch signal is detected by the touch control electrode;

[0024] If not, detect whether there is a rechargeable electronic device. If so, control at least some of the touch electrodes to form one or more transmitting coils, and wirelessly charge the rechargeable electronic device through the transmitting coils.

[0025] An electronic device, comprising the touch panel as described above;

[0026] The touch panel includes:

[0027] A plurality of touch electrodes;

[0028] A control module connected to the plurality of touch electrodes;

[0029] The control module is configured to control at least some of the touch electrodes to perform touch detection;

[0030] Or, the control module is configured to control at least some of the touch electrodes to form one or more transmitting coils, and wirelessly charge an electronic device having a receiving coil through the transmitting coils;

[0031] Or, the control module is configured to control at least some of the touch electrodes to perform touch detection, and control at least some of the remaining touch electrodes to form one or more transmitting coils, and wirelessly charge an electronic device having a receiving coil through the transmitting coils.

[0032] Optionally, the electronic device is a laptop computer.

[0033] Optionally, the electronic device is provided with an automatic switching module. The automatic switching module is configured to detect whether the touch panel is touched. When the touch panel is not touched, the automatic switching module automatically starts searching for a charging signal and wirelessly charges the rechargeable device found;

[0034] Or the electronic device is provided with a manual switching module for manually switching the touch panel to perform a touch detection function or a wireless charging function.

[0035] Compared with the prior art, the technical solution provided by the present invention has the following advantages:

[0036] The touch panel, wireless charging method, touch chip and electronic device provided by the present invention can control at least some of the touch electrodes on the touch panel to form one or more transmitting coils, and wirelessly charge the electronic device through the transmitting coils. Therefore, an electronic device such as a laptop computer can charge an electronic device such as a smart phone, so that there is no need to carry additional charging devices such as a power adapter, a power bank or a wireless charging stand, improving the convenience of charging an electronic device such as a smart phone. Description of the Drawings

[0037] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0038] Figure 1 Schematic diagram of the structure of a touch panel provided in an embodiment of the present invention;

[0039] Figure 2 Schematic diagram of the structure of a touch panel provided in another embodiment of the present invention;

[0040] Figure 3 Schematic diagram of the meandering emission coil provided in an embodiment of the present invention;

[0041] Figure 4 Schematic diagram of a touch electrode forming a meandering emission coil provided in an embodiment of the present invention;

[0042] Figure 5 Schematic diagram of another touch electrode forming a meandering emission coil provided in an embodiment of the present invention;

[0043] Figure 6 Schematic diagram of the structure of a touch electrode provided in an embodiment of the present invention;

[0044] Figure 7 Schematic diagram of the structure of another touch electrode provided in an embodiment of the present invention;

[0045] Figure 8 Schematic diagram of the structure of another touch electrode provided in an embodiment of the present invention;

[0046] Figure 9 Schematic diagram of the structure of another touch electrode provided in an embodiment of the present invention;

[0047] Figure 10 Schematic diagram of the structure of a first emission coil and a second emission coil provided in an embodiment of the present invention;

[0048] Figure 11 Schematic diagram of the structure of another first emission coil and a second emission coil provided in an embodiment of the present invention;

[0049] Figure 12 Flowchart of the wireless charging method provided in an embodiment of the present invention;

[0050] Figure 13 Schematic diagram of the structure of a notebook computer provided in an embodiment of the present invention. Detailed implementation manners

[0051] The above is the core idea of the present invention. To make the above objects, features, and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0052] An embodiment of the present invention provides a touch panel, which is applied to an electronic device, such as Figure 1 As shown, the touch panel includes:

[0053] A plurality of touch electrodes 101;

[0054] A control module 102 connected to the plurality of touch electrodes 101;

[0055] The control module 102 is configured to control at least some of the touch electrodes 101 to perform touch detection;

[0056] Alternatively, the control module 102 is configured to control at least some of the touch electrodes 101 to form one or more transmitting coils, and perform wireless charging on an electronic device having a receiving coil through the transmitting coils;

[0057] Alternatively, the control module 102 is configured to control at least some of the touch electrodes 101 to perform touch detection, and control at least some of the remaining touch electrodes 101 to form one or more transmitting coils, and perform wireless charging on an electronic device having a receiving coil through the transmitting coils.

[0058] In an embodiment of the present invention, in the touch stage, the control module 102 controls some or all of the touch electrodes 101 to perform touch detection, and performs human-computer interaction according to the touch detection result; in the charging stage, that is, in the stage where there is no touch on the touch panel, the control module 102 controls at least some of the touch electrodes 101 to form one or more transmitting coils, or the control module 102 controls all of the touch electrodes 101 to form one or more transmitting coils, and performs wireless charging on an electronic device having a receiving coil through one or more transmitting coils, or performs wireless charging on a plurality of electronic devices having receiving coils through a plurality of transmitting coils. In addition, the control module 102 can control at least some of the remaining touch electrodes 101 to form one or more transmitting coils while controlling at least some of the touch electrodes 101 to perform touch detection, and perform wireless charging on an electronic device having a receiving coil through the transmitting coils.

[0059] It should be noted that in the wireless charging state, after the control module 102 controls the touch electrodes 101 to form a transmitting coil, the control module 102 also needs to input a charging current to the transmitting coil, that is, to the touch electrodes 101 that form the transmitting coil. After the transmitting coil converts the charging current into a magnetic field, other electronic devices convert the induced magnetic field into a charging current through a receiving coil and use the charging current to charge the battery.

[0060] Since touch panels, as a kind of human-computer interaction input device, are widely used in electronic devices such as laptops, therefore, on the basis of retaining the human-computer interaction function of the touch panel, that is, the touch function, the present invention enables it to also have the function of a wireless charging stand, thereby making the charging method of mobile electronic devices more diversified and faster. In some cases, when a mobile electronic device that needs to be charged cannot use various existing charging methods, if there is an electronic device with the touch panel of the present invention on site, the touch panel of this electronic device can be used as the base of a wireless charging device to charge.

[0061] In the present invention, the human-computer interaction mechanism of the touch panel and the transmitting device of the wireless charging system are combined together. By sharing the touch electrodes of the touch panel as the transmitting coil of the wireless charging system, an integrated module with both the function of a wireless charging stand and the function of a touch panel is formed. Moreover, due to the characteristics of the touch panel process used in the present invention, the impedance of its touch electrodes is very low. Therefore, the impedance of the formed wireless charging transmitting coil is extremely small, and its charging efficiency can be comparable to that of an existing independent wireless charging stand.

[0062] Optionally, as Figure 2 shown, the touch panel in the embodiment of the present invention further includes a control switch 103, which controls the connection relationship between the touch electrodes 101 and the connection relationship between the touch electrodes 101 and the control module 102 through the control switch 103 to control the switching of the touch electrodes 101 between the touch detection function and the wireless charging function.

[0063] As Figure 2 shown, the first end b1 of the control switch 103 is connected to a corresponding touch electrode 101, the second end b2 of the control switch 103 is connected to the control module 102, and the third end b3 of the control switch 103 is connected to another touch electrode 101, or the third end b3 of the control switch 103 is connected to the third end b3 of another control switch 103 connected to another touch electrode 101; when the first end b1 of the control switch 103 is connected to the second end b2 of the control switch 103, the corresponding touch electrode 101 performs touch detection; when the first end b1 of the control switch 103 is connected to the third end b3 of the control switch 103, the corresponding touch electrode 101 forms a transmitting coil.

[0064] It should be noted that each touch electrode 101 on the touch panel is individually or connected in series to the pins of the touch chip integrated in the control module 102. In the embodiments of the present invention, by setting a control switch 103 and traces at appropriate positions, the connection relationship of the touch electrodes 101 is controlled to achieve the integration of the touch function and the wireless charging function.

[0065] It should also be noted that the control module 102 in the embodiments of the present invention includes a touch unit, a charging unit, and a switch unit. During the touch stage, the switch unit controls the first end b1 of the control switch 103 to be connected to the second end b2 of the control switch 103, so that the touch electrode 101 is connected to the touch unit inside the control module 102. Then, the touch unit performs touch detection by sending a detection signal to the touch electrode 101 and receiving the induction signal sent by the touch electrode 101, and performs corresponding processing according to the touch detection result. During the charging stage, the switch unit controls the first end b1 of the control switch 103 to be connected to the third end b3 of the control switch 103, so that the corresponding touch electrode 101 is connected to the charging unit inside the control module 102. Then, the charging unit transmits current to the corresponding touch electrode 101, and the touch electrode 101 forming the transmitting coil converts the current into a magnetic field to wirelessly charge other electronic devices.

[0066] In addition, the control module 102 in the embodiments of the present invention is integrated inside the touch chip, and the switch matrix composed of multiple control switches 103 and the control part of the switch matrix, that is, the switch unit, are also integrated inside the touch chip. Of course, the present invention is not limited thereto. In other embodiments, the switch matrix can also be integrated outside the touch chip, such as being provided on the touch electrode 101 or on the panel between the touch electrode 101 and the touch chip 102.

[0067] In the embodiments of the present invention, the touch electrode 101 can be a block electrode arranged in a matrix, and multiple block electrodes are arranged on the same layer. This block electrode is both a driving electrode TX and a sensing electrode RX, and the touch electrodes forming the transmitting coil can be multiple block electrodes. Of course, the present invention is not limited thereto. In other embodiments, the touch electrode 101 further includes a driving electrode TX and a sensing electrode RX, and the driving electrode TX and the sensing electrode RX are arranged on the same layer or on different layers; the touch electrode 101 forming the transmitting coil is the driving electrode TX or the sensing electrode RX.

[0068] Among them, when the driving electrode TX and the sensing electrode RX are arranged on the same layer, the sensing electrode RX can be arranged in m (m>1) rows along the X direction or the Y direction on the same layer of substrate, and the driving electrode TX can be arranged in n columns (n>1) along the Y direction or the X direction on the same layer of substrate; when the driving electrode TX and the sensing electrode RX are arranged in different layers, the sensing electrode RX can be arranged in m (m>1) rows along the X direction or the Y direction on the upper layer of the two layers of substrate, and the driving electrode TX can be arranged in n columns (n>1) along the Y direction or the X direction on the lower layer of the two layers of substrate. Moreover, an insulating layer is provided in the overlapping area between the sensing electrode RX and the driving electrode TX, so that the sensing electrode RX and the driving electrode TX form a capacitor. That is to say, in the embodiments of the present invention, multiple adjacent sensing electrodes RX among the m rows can be controlled to form a transmitting coil, or multiple adjacent driving electrodes TX among the n columns can be controlled to form a transmitting coil.

[0069] Optionally, in the embodiments of the present invention, the control switch 103 controls the transmitting coil formed by the touch electrodes 101 to be a Figure 3 loop-shaped coil in the X direction or a loop-shaped coil in the Y direction as shown. Of course, the present invention is not limited thereto. In other embodiments, the formed transmitting coil can also be circular ring-shaped or the like.

[0070] In an embodiment of the present invention, as Figure 4 shown, the shape of the touch electrode 101 forming the transmitting coil is a strip-shaped electrode with a square-shaped bending area, and multiple touch electrodes 101, that is, sensing electrodes RX, are arranged in a loop shape, that is, multiple touch electrodes 101 are arranged in a non-matrix arrangement. Optionally, the touch electrode 101 is a sensing electrode RX, and the strip-shaped driving electrode TX is insulated from the sensing electrode RX.

[0071] In this embodiment, the touch electrodes 101 forming the transmitting coil include the first touch electrode to the Kth touch electrode arranged in sequence from the outside to the inside, and K is an integer greater than 1. In this embodiment, only K equal to 4 is taken as an example for illustration, and it is not limited thereto.

[0072] As Figure 4 shown, the first touch electrode to the fourth touch electrode are RX1, RX2, RX3, and RX4 respectively, RX1N and RX1P are the two ends of RX1 respectively, RX2N and RX2P are the two ends of RX2 respectively, RX3N and RX3P are the two ends of RX3 respectively, and RX4N and RX4P are the two ends of RX4 respectively.

[0073] When the first end b1 and the second end b2 of the control switch 103 are connected, that is, in the touch stage, the connection manner of the first touch electrode RX1 to the fourth touch electrode RX4 is as Figure 4As shown in the touch function connection diagram, the connection methods of the first touch electrode RX1 to the fourth touch electrode RX4 are the same as those of the existing touch panel, which will not be elaborated here. Each touch electrode is connected to the control module 102. The control module 102 sends a touch detection signal to the touch electrode, that is, the driving electrode TX, receives the induction signal induced by the induction electrode RX, and obtains the touch detection result based on the received induction signal.

[0074] When the first end b1 and the third end b3 of the control switch 103 are connected, that is, during the charging stage, the connection methods of the first touch electrode RX1 to the fourth touch electrode RX4 are as Figure 4 shown in the wireless charging function connection diagram. The first end RX1N of the first touch electrode RX1 is connected to the control module 102, the second end RX4P of the fourth touch electrode RX4 is connected to the control module 102, the second end RX4P of the first touch electrode RX1 is connected to the first end RX2N of the second touch electrode RX2, the second end RX2P of the second touch electrode RX2 is connected to the first end RX3N of the third touch electrode RX3, and the second end RX3P of the third touch electrode RX3 is connected to the first end RX4N of the fourth touch electrode RX4. At this time, the first touch electrode RX1 to the fourth touch electrode RX4 form a rectangular emitting coil.

[0075] That is to say, in this embodiment, when the first touch electrode to the Kth touch electrode form an emitting coil, the head end of the first touch electrode is connected to the control module 102, the tail end of the Kth touch electrode is connected to the control module 102, and the tail end of the ith touch electrode is connected to the head end of the (i + 1)th touch electrode, where i is any integer between 1 and K - 1.

[0076] It should be noted that during the touch stage and the charging stage, the head end RX1N of the first touch electrode RX1 is respectively connected to different pins of the touch chip where the control module 102 is located, and the tail end RX4P of the fourth touch electrode RX4 is respectively connected to different pins of the touch chip where the control module 102 is located. Of course, the present invention is not limited to this. In other embodiments, it can also be connected to the same pin, but during the touch stage and the charging stage, the signals output by this pin are different.

[0077] It should also be noted that during the charging stage, the head end RX1N of the first touch electrode RX1 connected to the control module 102 is the positive input terminal Coil+ or the negative input terminal Coil- of the current, and the tail end RX4P of the fourth touch electrode RX4 connected to the control module 102 is the negative input terminal Coil- or the positive input terminal Coil+ of the current.

[0078] In another embodiment of the present invention, a plurality of touch electrodes are arranged in a matrix, that is, a plurality of driving electrodes TX arranged in parallel are arranged in m rows, and a plurality of sensing electrodes RX arranged in parallel are arranged in n columns, and the driving electrodes TX and the sensing electrodes RX are arranged in layers.

[0079] As Figure 5 shown, the touch electrodes constituting the transmitting coil include the 1st touch electrode to the Kth touch electrode arranged in parallel, where K is an integer greater than 1, and among them, the 1st touch electrode to the Kth touch electrode are driving electrodes TX or sensing electrodes RX. Similarly, in this embodiment, only the case where K is equal to 4 is taken as an example for illustration, and it is not limited thereto.

[0080] As Figure 5 shown, the 1st touch electrode to the 4th touch electrode are TX / RX1, TX / RX2, TX / RX3, and TX / RX4 respectively. TX / RX1N and TX / RX1P are the two ends of TX / RX1 respectively, TX / RX2N and TX / RX2P are the two ends of TX / RX2 respectively, TX / RX3N and TX / RX3P are the two ends of TX / RX3 respectively, and TX / RX4N and TX / RX4P are the two ends of TX / RX4 respectively.

[0081] When the first end b1 and the second end b2 of the control switch 103 are connected, the connection manner of the 1st touch electrode TX / RX1 to the 4th touch electrode TX / RX4 is as Figure 5 shown in the touch function wiring diagram therein. The connection manner of the 1st touch electrode RX1 to the 4th touch electrode RX4 is the same as the connection relationship of the existing touch panel, and will not be elaborated here.

[0082] When the first end b1 and the third end b3 of the control switch 103 are connected, the connection manner of the 1st touch electrode RX1 to the 4th touch electrode RX4 is as Figure 5 shown in the wireless charging function wiring diagram therein. The head end TX / RX1P of the 1st touch electrode TX / RX1 is connected to the control module 102, the head end TX / RX3P of the 3rd touch electrode TX / RX3 is connected to the control module 102, the head end TX / RX2P of the 2nd touch electrode TX / RX2 is connected to the head end TX / RX4P of the 4th touch electrode TX / RX4, the tail end TX / RX1N of the 1st touch electrode TX / RX1 is connected to the tail end TX / RX4N of the 4th touch electrode TX / RX4, and the tail end TX / RX2N of the 2nd touch electrode TX / RX2 is connected to the tail end TX / RX3N of the 3rd touch electrode TX / RX3. At this time, the 1st touch electrode TX / RX1 to the 4th touch electrode TX / RX4 form a loop-shaped transmitting coil.

[0083] That is to say, in this embodiment, when the first touch electrode to the Kth touch electrode form a transmitting coil, the head end of the first touch electrode is connected to the control module 102, the tail end of the first touch electrode is connected to the tail end of the Kth touch electrode, the head end of the Kth touch electrode is connected to the head end of the second touch electrode, the tail end of the ith touch electrode is connected to the tail end of the (K - i + 1)th touch electrode, and the head end of the rth touch electrode is connected to the head end of the (K - r + 2)th touch electrode;

[0084] Among them, when K is an even number, the head end of the (K / 2 + 1)th touch electrode is connected to the control module 102, and when K is an odd number, the tail end of the (K + 1) / 2th touch electrode is connected to the control module 102. i is any integer between 2 and K, and r is any integer between 3 and K.

[0085] In this embodiment, the driving electrode TX and the sensing electrode RX are arranged in layers. And, as Figure 6 shown, the driving electrode TX and the sensing electrode RX form a bridging touch structure. The sensing electrode RX is arranged in m rows along the Y direction on the upper substrate of the two substrates, and the driving electrode TX is arranged in n columns along the X direction on the lower substrate of the two substrates. The driving electrode TX and the sensing electrode RX are connected through the bridge to form an m×n electrode. When in the charging state, the driving electrodes TX are connected to form a transmitting coil along the Y direction, or the sensing electrodes RX are connected to form a transmitting coil along the X direction. Of course, the present invention is not limited thereto. In other embodiments, the driving electrode TX and the sensing electrode RX of the bridging touch structure can also be arranged on the same layer, and insulation treatment is performed at the intersection.

[0086] As Figure 7 shown, the driving electrode TX and the sensing electrode RX can be a strip-shaped touch structure. The sensing electrode RX is arranged in m rows along the Y direction on the upper substrate of the two substrates, and the driving electrode TX is arranged in n columns along the X direction on the lower substrate of the two substrates. When in the charging state, the driving electrodes TX are connected to form a transmitting coil along the Y direction, or the sensing electrodes RX are connected to form a transmitting coil along the X direction.

[0087] In another embodiment of the present invention, multiple touch electrodes are arranged in a matrix, that is, multiple parallel driving electrodes TX are arranged in m rows, and multiple parallel sensing electrodes RX are arranged in n columns. And, the driving electrode TX and the sensing electrode RX are arranged on the same layer.

[0088] As Figure 8As shown, the driving electrode TX and the sensing electrode RX form an E-type touch structure, where one of the driving electrode TX and the sensing electrode RX is connected by a back connection through punching to form m rows or n columns of electrodes. For example, the sensing electrode RX is connected by a back connection through punching to form m rows of electrodes. When in the charging state, the driving electrodes TX are connected to form a transmitting coil along the Y direction, or the sensing electrodes RX are connected to form a transmitting coil in the X direction.

[0089] Optionally, in the embodiments of the present invention, the distance between the touch electrodes is 1 mm to 4 mm, so as to increase the induction amount, support a passive pen, and can increase the number of transmitting coils to improve the charging efficiency.

[0090] In another embodiment of the present invention, as Figure 9 shown, a plurality of touch electrodes are arranged in a matrix; the touch electrodes constituting the transmitting coil include a plurality of touch electrodes arranged in j rows and k columns, where j and k are even numbers greater than 1.

[0091] Taking j = k = 4 as an example, when a plurality of touch electrodes in 4 rows and 4 columns form a transmitting coil, the head end of the touch electrode in the first row and the first column is connected to the control module 102, and the head end of the touch electrode in the third row and the first column is connected to the control module 102. The touch electrodes in each row are connected in sequence. For example, the tail end of the touch electrode in the first row and the first column is connected to the head end of the touch electrode in the first row and the second column, the tail end of the touch electrode in the first row and the second column is connected to the head end of the touch electrode in the first row and the third column, and the tail end of the touch electrode in the first row and the second column is connected to the head end of the touch electrode in the first row and the fourth column. And, the head end of the touch electrode in the second row and the first column is connected to the head end of the touch electrode in the fourth row and the first column, the tail end of the touch electrode in the first row and the fourth column is connected to the tail end of the touch electrode in the fourth row and the fourth column, and the tail end of the touch electrode in the second row and the fourth column is connected to the tail end of the touch electrode in the third row and the fourth column.

[0092] That is to say, in this embodiment, when a plurality of touch electrodes in j rows and k columns form a transmitting coil, the head end of the touch electrode in the first row and the first column is connected to the control module 102, the head end of the touch electrode in the (j / 2)+1 row and the first column is connected to the control module 102. The touch electrodes in each row are connected in sequence. And, the head end of the touch electrode in the rth row and the first column is connected to the head end of the touch electrode in the k-r+2th row and the first column, where r is any integer between 2 and k-r, and the tail end of the touch electrode in the ith row and the kth column is connected to the tail end of the touch electrode in the k-i+1th row and the kth column, where i is any integer between 1 and k.

[0093] In the present invention, the control module 102 can control all the touch electrodes to form a transmitting coil, or can control some of the touch electrodes to form a transmitting coil. When the control module 102 controls some of the touch electrodes to form a transmitting coil, the control module is further configured to control other touch electrodes to perform touch detection. It should be noted that the part of the touch electrodes forming the transmitting coil can be located in any area of the touch panel.

[0094] In an embodiment of the present invention, the touch panel may include only one chargeable area, or may include multiple chargeable areas. The multiple chargeable areas can charge one electronic device or multiple electronic devices.

[0095] As Figure 10 shown, the control module 102 is configured to control the touch electrodes in one area to form a transmitting coil, and the touch electrodes in another area to perform touch detection, forming a first area and a second area. As Figure 11 shown, the control module 102 is further configured to control the touch electrodes to form a first transmitting coil and a second transmitting coil, thereby forming a first area and a second area.

[0096] It should be noted that corresponding control switches 103 are provided in both the first area and the second area. As Figure 10 shown in the touch and charging function connection diagram at the lower left corner, when the first end b1 of the control switch 103 in the first area is connected to the second end b2, and the first end b1 of the control switch 103 in the second area is connected to the third end b3, the touch electrodes in the first area perform touch detection, and the touch electrodes in the second area form a transmitting coil; as Figure 10 shown in the touch and charging function connection diagram at the lower right corner, when the first end b1 of the control switch 103 in the first area is connected to the third end b3, and the first end b1 of the control switch 103 in the second area is connected to the second end b2, the touch electrodes in the first area form a transmitting coil, and the touch electrodes in the second area perform touch detection.

[0097] As Figure 11 shown in the touch function connection diagram at the lower left corner, when the first end b1 of the control switch 103 in the first area is connected to the second end b2, and the first end b1 of the control switch 103 in the second area is connected to the second end b2, the touch electrodes in both the first area and the second area perform touch detection; as Figure 11 shown in the wireless charging function connection diagram at the lower right corner, when the first end b1 of the control switch 103 in the first area is connected to the third end b3, and the first end b1 of the control switch 103 in the second area is connected to the third end b3, the touch electrodes in both the first area and the second area form two transmitting coils.

[0098] The touch panel provided by the present invention can form one or more transmitting coils by controlling at least some of the touch electrodes on the touch panel, and wirelessly charge an electronic device having a receiving coil through the transmitting coil. Since in scenarios such as business trips, electronic devices such as laptops are essential electronic devices to be carried, therefore, charging an electronic device such as a smartphone through an electronic device such as a laptop can eliminate the need to carry additional charging devices such as a power adapter, a power bank, or a wireless charging stand, improving the convenience of charging electronic devices such as smartphones.

[0099] An embodiment of the present invention further provides a touch chip, which is used to connect to the control module 102 of the touch panel provided in any of the above embodiments and control the touch panel to perform touch detection or wireless charging, or perform touch detection and wireless charging simultaneously. Among them, the touch chip can control the touch panel to perform touch detection or wireless charging, or perform touch detection and wireless charging simultaneously by sending control instructions to the control module 102.

[0100] An embodiment of the present invention further provides a wireless charging method, which is applied to the touch panel provided in any of the above embodiments, as Figure 12 shown, the method includes:

[0101] S101: Determine whether a touch signal is detected by the touch electrode. If not, proceed to S102;

[0102] S102: Detect whether there is a rechargeable electronic device. If so, proceed to S103;

[0103] S103: Control at least some of the touch electrodes to form one or more transmitting coils, and wirelessly charge the rechargeable electronic device through the transmitting coil.

[0104] In the present invention, when an electronic device having the above touch panel is working, it will detect and determine whether a touch signal is detected by the touch electrode. If a touch signal is detected, the touch electrode continues to perform touch detection. If no touch signal is detected, it means that there is no touch on the touch panel at this time. It can detect whether there is a rechargeable electronic device nearby by detecting a charging signal. If not, the touch electrode continues to perform touch detection. If there is, control at least some of the touch electrodes to form one or more transmitting coils, and wirelessly charge the rechargeable electronic device through the transmitting coil.

[0105] Among them, since both the electronic device having the above touch panel and the rechargeable electronic device are terminals with communication functions, therefore, the rechargeable electronic device can send a wireless charging signal requesting charging when it is to be charged. After the electronic device having the above touch panel detects the charging signal, it can determine whether there is a rechargeable electronic device.

[0106] That is to say, the touch panel in the embodiment of the present invention can automatically switch between the touch function and the wireless charging function. Of course, the present invention is not limited thereto. In other embodiments, the user can also manually switch, that is, the touch panel switches between the touch function and the wireless charging function according to the received wireless charging control instruction input by the user.

[0107] Based on this, the wireless charging method provided by the embodiment of the present invention further includes:

[0108] Receiving a wireless charging control instruction;

[0109] Controlling at least some of the touch electrodes to form one or more transmitting coils according to the wireless charging control instruction, and wirelessly charging the rechargeable electronic device through the transmitting coils.

[0110] Optionally, when the wireless charging method provided by the embodiment of the present invention controls at least some of the touch electrodes to form one or more transmitting coils, it further includes:

[0111] Controlling other touch electrodes to perform touch detection.

[0112] In the present invention, all the touch electrodes can be controlled to form a transmitting coil, or at least some of the touch electrodes can be controlled to form a transmitting coil. When controlling at least some of the touch electrodes to form a transmitting coil, it includes: controlling at least some of the touch electrodes to form a transmitting coil, and controlling at least some of the other touch electrodes to perform touch detection.

[0113] Optionally, when the touch panel includes at least a first region and a second region, controlling at least some of the touch electrodes to form one or more transmitting coils includes:

[0114] Controlling the touch electrodes in the first region to form a transmitting coil and the touch electrodes in the second region to form a transmitting coil;

[0115] Or, controlling the touch electrodes in one of the first region and the second region to form a transmitting coil, and the touch electrodes in the other region to perform touch detection.

[0116] The embodiment of the present invention further provides an electronic device. Optionally, the electronic device is a laptop computer, as Figure 13 shown, the electronic device includes:

[0117] An input / output device 130, including the touch panel provided in any of the above embodiments;

[0118] A memory 131, configured to store computer-executable program code, and the computer-executable program code includes program instructions;

[0119] A processor 132 is configured to execute program instructions in a memory 131. When the program instructions are executed, the processor 132 determines whether a touch signal is detected by touch electrodes on a touch panel. If not, it detects whether there is a rechargeable electronic device. If there is, it controls at least some of the touch electrodes to form one or more transmitting coils, and wirelessly charges the rechargeable electronic device through the transmitting coils.

[0120] Optionally, when the program instructions are executed, the processor 132 is further configured to control at least some of the touch electrodes to form one or more transmitting coils according to a wireless charging control instruction, and wirelessly charge other rechargeable electronic devices through the transmitting coils.

[0121] In an embodiment of the present invention, the electronic device is provided with an automatic switching module. The automatic switching module detects whether the touch panel is touched. When the touch panel is not touched, the automatic switching module automatically starts to search for a charging signal and wirelessly charges the rechargeable device found. Of course, the present invention is not limited thereto. In other embodiments, the electronic device may also be provided with a manual switching module for manually switching the touch panel to execute a touch detection function or a wireless charging function.

[0122] Optionally, when the processor 132 controls some of the touch electrodes to form one or more transmitting coils according to a wireless charging control instruction, it is further configured to control other touch electrodes to perform touch detection. In the present invention, the processor 132 may control all the touch electrodes to form a transmitting coil, or control some of the touch electrodes to form a transmitting coil. When the processor 132 controls some of the touch electrodes to form a transmitting coil, the processor 132 is further configured to control some of the touch electrodes to form a transmitting coil and control other touch electrodes to perform touch detection.

[0123] Optionally, when the touch panel includes at least a first area and a second area, the processor 132 is further configured to control the touch electrodes in the first area to form a transmitting coil and the touch electrodes in the second area to form a transmitting coil, or control the touch electrodes in one of the first area and the second area to form a transmitting coil and the touch electrodes in the other area to perform touch detection.

[0124] It should be noted that the other electronic device is an electronic device having a receiving coil that can be coupled with a transmitting coil on an electronic device such as a laptop computer for wireless charging. The other electronic device may be a smart phone, a watch, an active pen, a tablet computer, etc.

[0125] In this specification, the various embodiments are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts among the various embodiments can be referred to each other. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple. For the relevant parts, reference can be made to the description in the method part.

[0126] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A touch panel, characterized in that, Comprising: A plurality of touch electrodes; A control module connected to the plurality of touch electrodes; The control module is configured to control at least some of the touch electrodes to perform touch detection; Alternatively, the control module is configured to control at least some of the touch electrodes to form one or more transmitting coils, and perform wireless charging on an electronic device having a receiving coil through the transmitting coils; Alternatively, the control module is configured to control at least some of the touch electrodes to perform touch detection, and control at least some of the remaining touch electrodes to form one or more transmitting coils, and perform wireless charging on an electronic device having a receiving coil through the transmitting coils; The shape of the transmitting coil is a meander shape; The touch electrodes forming the transmitting coil are strip electrodes having a square-shaped bent area; the touch electrodes forming the transmitting coil include a first touch electrode to a K-th touch electrode arranged in sequence, where K is an integer greater than 1; When the first touch electrode to the K-th touch electrode form a transmitting coil, the head end of the first touch electrode is connected to the control module, the tail end of the K-th touch electrode is connected to the control module, and the tail end of the i-th touch electrode is connected to the head end of the i+1-th touch electrode, where i is any integer between 1 and K-1; Alternatively, the touch electrodes forming the transmitting coil include a first touch electrode to a K-th touch electrode arranged in sequence, where K is an integer greater than 1; When the first touch electrode to the K-th touch electrode form a transmitting coil, the head end of the first touch electrode is connected to the control module, the tail end of the first touch electrode is connected to the tail end of the K-th touch electrode, the head end of the K-th touch electrode is connected to the head end of the second touch electrode, the tail end of the i-th touch electrode is connected to the tail end of the K-i+1-th touch electrode, and the head end of the r-th touch electrode is connected to the head end of the K-r+2-th touch electrode; Wherein, when K is an even number, the head end of the (K / 2)+1-th touch electrode is connected to the control module, when K is an odd number, the tail end of the (K+1) / 2-th touch electrode is connected to the control module, i is any integer between 2 and K, and r is any integer between 3 and K; Or, the plurality of touch electrodes are arranged in a matrix; the touch electrodes forming the transmitting coil include a plurality of touch electrodes arranged in j rows and k columns, where j and k are even numbers greater than 1; When the plurality of touch electrodes arranged in j rows and k columns form a transmitting coil, the head end of the touch electrode in the first row and the first column is connected to the control module, the head end of the touch electrode in the (j / 2)+1-th row and the first column is connected to the control module, the touch electrodes in each row are connected in sequence, and the head end of the touch electrode in the r-th row and the first column is connected to the head end of the touch electrode in the k-r+2-th row and the first column, where r is any integer between 2 and k-r, and the tail end of the touch electrode in the i-th row and the k-th column is connected to the tail end of the touch electrode in the k-i+1-th row and the k-th column, where i is any integer between 1 and k.

2. The touch panel according to claim 1, wherein The touch electrode includes a driving electrode and a sensing electrode, and the driving electrode and the sensing electrode are arranged on the same layer or on different layers; The touch electrodes constituting the transmitting coil are the driving electrodes or the sensing electrodes.

3. The touch panel according to claim 1, wherein The distance between adjacent touch electrodes is 1 mm - 4 mm.

4. A touch chip, characterized in that, The touch chip is used to connect to the control module of the touch panel according to claim 1 and control the touch panel to perform touch detection or wireless charging, or perform touch detection and wireless charging simultaneously.

5. A wireless charging method, characterized in that, Applied to the touch panel according to any one of claims 1 to 3, the method includes: Determine whether a touch signal is detected by the touch electrodes. If not, detect whether there is a rechargeable electronic device. If so, control at least some of the touch electrodes to form one or more transmitting coils, and perform wireless charging of the rechargeable electronic device through the transmitting coils.

6. An electronic device, characterized in that, Including the touch panel according to claim 1; The touch panel includes: A plurality of touch electrodes; A control module connected to the plurality of touch electrodes; The control module is used to control at least some of the touch electrodes to perform touch detection; Or, the control module is used to control at least some of the touch electrodes to form one or more transmitting coils, and perform wireless charging of an electronic device having a receiving coil through the transmitting coils; Or, the control module is used to control at least some of the touch electrodes to perform touch detection, and control at least some of the remaining touch electrodes to form one or more transmitting coils, and perform wireless charging of an electronic device having a receiving coil through the transmitting coils.

7. The electronic device according to claim 6, characterized in that, The electronic device is a laptop computer.

8. The electronic device according to claim 6, wherein The electronic device is provided with an automatic switching module, and the automatic switching module is used to detect whether the touch panel is touched. When the touch panel is not touched, the automatic switching module automatically starts searching for a charging signal and performs wireless charging on the rechargeable device found; Or the electronic device is provided with a manual switching module for manually switching the touch panel to perform the touch detection function or the wireless charging function.

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