Touch modules and touch electronic devices

Abstract

The present application relates to a touch module and a touch electronic device. The touch module includes: a touch electrode layer; a transmitting antenna electrically connected to the touch electrode layer, and used to transmit the touch signal on the touch electrode layer to the mainboard of the touch electronic device. The touch module of the present application, on the one hand, does not require the provision of complex wiring around the touch electrode layer; on the other hand, does not require bonding to the circuit board; and on the other hand, does not require the provision of a touch chip on the touch module. Therefore, the present application reduces the design difficulty and manufacturing difficulty of the touch module, thereby improving the manufacturing efficiency and manufacturing yield of the touch module.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a touch module and a touch electronic device. Background Art

[0002] With the continuous development of touch technology, touch panels have become an important medium for interaction between electronic devices and users.

[0003] Traditionally, a touch panel is equipped with multiple touch drive electrodes Tx and multiple touch sensing electrodes Rx. The touch drive electrodes Tx emit low-voltage, high-frequency signals, which are received by the touch sensing electrodes Rx, forming a stable capacitance between them. A user's touch causes a change in capacitance between the touch drive electrodes Tx and the touch sensing electrodes Rx. This capacitance change can be used to determine the touch location. The electrical signals from the touch drive electrodes Tx and the multiple touch sensing electrodes Rx are then transmitted to the integrated circuit via leads and circuit boards.

[0004] However, the preparation of such a touch panel is relatively complicated, which reduces the preparation efficiency and the preparation yield. Summary of the Invention

[0005] Based on this, it is necessary to provide a touch module and a touch electronic device to address the problem that touch panel preparation in traditional technology is relatively complicated.

[0006] In a first aspect, the present application provides a touch module for a touch-controlled electronic device, the touch module comprising:

[0007] touch electrode layer;

[0008] The transmitting antenna is electrically connected to the touch electrode layer and is used to transmit the touch signal on the touch electrode layer to the mainboard of the touch electronic device.

[0009] In one embodiment, the touch module further includes:

[0010] The receiving coil is electrically connected to the touch electrode layer and is used to receive energy transmitted by the transmitting coil of the touch electronic device to generate electric energy and supply the electric energy to the touch electrode layer.

[0011] In one embodiment, the touch electrode layer includes a first electrode layer, the transmitting antenna includes a first transmitting antenna electrically connected to the first electrode layer, and the receiving coil includes a first receiving coil electrically connected to the first electrode layer;

[0012] The first transmitting antenna and the first receiving coil are respectively disposed at two opposite ends of the first electrode layer in a first direction, and the first direction is perpendicular to a thickness direction of the touch electrode layer.

[0013] In one embodiment, the touch electrode layer includes a second electrode layer, the transmitting antenna includes a second transmitting antenna, and the receiving coil includes a second receiving coil;

[0014] The second transmitting antenna and the second receiving coil are respectively arranged at two opposite ends of the second electrode layer in a second direction; the second direction is perpendicular to the thickness direction of the touch electrode layer and the first direction.

[0015] In one embodiment, the first electrode layer and the second electrode layer are provided in the same layer;

[0016] Alternatively, the second electrode layer is located on one side of the first electrode layer along the thickness direction.

[0017] In one embodiment, the first electrode layer includes a plurality of first sub-electrodes spaced apart along the second direction, and each of the first sub-electrodes extends along the first direction; the first transmitting antenna includes a plurality of first sub-antennas, and the first receiving coil includes a plurality of first sub-coils, and the plurality of first sub-antennas and the plurality of first sub-coils are connected to the first sub-electrodes in a one-to-one correspondence;

[0018] The second direction is perpendicular to the thickness direction of the touch electrode layer and the first direction.

[0019] In one embodiment, the second electrode layer includes a plurality of second sub-electrodes arranged at intervals along the first direction, and each second sub-electrode extends along the second direction; the second transmitting antenna includes a plurality of second sub-antennas, and the second receiving coil includes a plurality of second sub-coils, and the plurality of second sub-antennas and the plurality of second sub-coils are connected to the second sub-electrodes in a one-to-one correspondence.

[0020] The above-mentioned touch module, by providing a transmitting antenna electrically connected to the touch electrode layer, can transmit the touch signal sensed by the touch electrode layer to the mainboard of the touch electronic device in a wireless manner, and the mainboard processes the received touch signal to obtain touch information. Compared with the traditional touch module, the signal of the touch electrode layer needs to be transmitted to the integrated circuit through the lead and the circuit board. The touch module of the present application, on the one hand, does not need to set up complex routing around the touch electrode layer; on the other hand, it does not need to bond the circuit board; and on the other hand, it does not need to set up a touch chip on the touch module. Therefore, the present application reduces the design difficulty and preparation difficulty of the touch module, thereby improving the preparation efficiency and preparation yield of the touch module.

[0021] In a second aspect, the present application provides a touch-sensitive electronic device, comprising:

[0022] The touch module according to any one of the embodiments of the first aspect;

[0023] A mainboard is provided with a receiving antenna, and the receiving antenna is used to receive a touch signal sent by a transmitting antenna of the touch module and transmit the touch signal to the mainboard.

[0024] In one embodiment, the touch-sensitive electronic device further includes a transmitting coil electrically connected to the mainboard, and the transmitting coil is used to transmit energy to the receiving coil of the touch-sensitive module.

[0025] In one embodiment, the touch-sensitive electronic device further includes a display module electrically connected to the mainboard, and the touch-sensitive module is disposed on a light-emitting side of the display module.

[0026] The above-mentioned touch electronic device is provided with a transmitting antenna electrically connected to the touch electrode layer, and a receiving antenna is provided on the main board. In this way, the touch signal sensed by the touch electrode layer can be transmitted wirelessly to the main board of the touch electronic device, and the main board processes the received touch signal to obtain touch information. Compared with the traditional touch module, the signal of the touch electrode layer needs to be transmitted to the integrated circuit through the lead and the circuit board. The touch electronic device of the present application, on the one hand, does not need to set up complex routing around the touch electrode layer; on the other hand, does not need to bond the circuit board; and on the other hand, does not need to set up a touch chip on the touch module. Therefore, the present application reduces the design difficulty and preparation difficulty of the touch module and the touch electronic device, thereby improving the preparation efficiency and preparation yield of the touch module and the touch electronic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the conventional technology, the following briefly introduces the drawings required for use in the embodiments or the conventional technology descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 A schematic diagram of the cross-sectional structure of a touch panel in conventional technology;

[0029] Figure 2 A schematic diagram of the cross-sectional structure of another touch panel in conventional technology;

[0030] Figure 3 A schematic diagram of the connection between a touch panel, a circuit board, and an integrated circuit in conventional technology;

[0031] Figure 4A schematic structural diagram of a touch-sensitive electronic device provided in one embodiment of the present application;

[0032] Figure 5 A schematic structural diagram of a touch display panel provided in one embodiment of the present application;

[0033] Figure 6 A schematic structural diagram of another touch display panel provided in one embodiment of the present application;

[0034] Figure 7 A schematic structural diagram of another touch-sensitive electronic device provided in one embodiment of the present application;

[0035] Figure 8 A schematic structural diagram of another touch-sensitive electronic device provided in one embodiment of the present application;

[0036] Figure 9 A schematic structural diagram of a first electrode layer of a touch module provided in one embodiment of the present application;

[0037] Figure 10 This is a schematic structural diagram of the second electrode layer of the touch module provided in one embodiment of the present application.

[0038] Reference numerals:

[0039] 1': Touch panel 512: Second electrode layer

[0040] 10': touch sensing electrode Rx 5121: second sub-electrode

[0041] 20': Touch drive electrode Tx 52: Transmitting antenna

[0042] 30': Adhesive layer 521: First transmitting antenna

[0043] 40': Cover 5211: First sub-antenna

[0044] 50': self-capacitive touch electrode 522: second transmitting antenna

[0045] 2': Lead 5221: Second sub-antenna

[0046] 3': Circuit board 53: Receiving coil

[0047] 4': Integrated circuit 531: first receiving coil

[0048] 1: Touch electronic device 5311: First sub-coil

[0049] 10: Main board 532: Second receiving coil

[0050] 20: Receiving antenna 5321: Second sub-coil

[0051] 30: Battery module 60: Display module

[0052] 40: Transmitting coil 70: Adhesive layer

[0053] 50: Touch module 80: Cover

[0054] 51: Touch electrode layer 90: Base material layer

[0055] 511: first electrode layer 100: protective layer

[0056] 5111: First sub-electrode DETAILED DESCRIPTION

[0057] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0058] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application 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 operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0059] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0060] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0061] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0062] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0063] As used herein, the singular forms "a," "an," and "the" may also include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include," "comprising," "having," and the like specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof. Also, in this specification, the term "and / or" includes any and all combinations of the relevant listed items.

[0064] The conventional capacitive touch panel 1' generally includes two structures, referring to Figure 1 and Figure 2 As shown, Figure 1The touch panel 1' shown in the figure includes touch drive electrodes Tx20' and touch sensing electrodes Rx10'. The touch drive electrodes Tx20' and touch sensing electrodes Rx10' are stacked and bonded together by an adhesive layer 30'. The cover plate 40' is bonded to the side of the touch sensing electrodes Rx10' facing away from the touch drive electrodes Tx20' via the adhesive layer 30'. The touch drive electrodes Tx20' can emit low-voltage, high-frequency signals, which are received by the touch sensing electrodes Rx10', forming a stable capacitance between the two electrodes. A user's touch causes different capacitance changes between the touch drive electrodes Tx20' and the touch sensing electrodes Rx10'. The touch location can be determined based on the capacitance changes.

[0065] Figure 2 The touch panel 1' shown in FIG includes a self-capacitive touch electrode 50', which is bonded to one side of a cover plate 40' via an adhesive layer 30'. The self-capacitive touch electrode 50' forms a self-capacitance with ground. When a user's finger touches the cover plate 40', the capacitance of the finger is added to the self-capacitance, increasing the capacitance. The touch location can be determined based on the change in self-capacitance before and after the finger touches.

[0066] However, the touch signals of the two touch panels 1' need to be transmitted to the integrated circuit 4' through the lead 2' and the circuit board 3'. Figure 3 As shown, complex leads 2' are arranged around the touch sensing electrodes Rx10' and touch driving electrodes Tx20' (not shown). The electrical signals from the touch driving electrodes Tx20' and touch sensing electrodes Rx10' are sequentially transmitted to the integrated circuit 4' through the leads 2' and the circuit board 3'. However, this touch panel 1' has at least the following disadvantages: First, the arrangement of the leads 2' around the touch sensing electrodes Rx10' and touch driving electrodes Tx20' is relatively complex, increasing both design and manufacturing difficulties. Second, the circuit board 3' needs to be bonded, increasing the manufacturing difficulty. Furthermore, the bonding process has a certain defect rate, which reduces the manufacturing yield of the touch panel 1'.

[0067] In view of this, in order to solve at least one of the above problems, the embodiments of the present application provide a touch module and a touch electronic device, which can reduce the design difficulty and preparation difficulty of the touch module and the touch electronic device, thereby improving the preparation efficiency and preparation yield of the touch module and the touch electronic device.

[0068] It should be noted that the touch electronic device can be a mobile or fixed terminal with a touch module, such as a mobile phone, a television, a tablet computer, a laptop computer, an ultra-mobile personal computer (UMPC), a personal digital assistant (PDA), etc.

[0069] Reference Figure 4 As shown, the touch-sensitive electronic device 1 includes a touch module 50 and a motherboard 10. A receiving antenna 20 is provided on the motherboard 10. The touch module 50 includes a touch electrode layer 51 and a transmitting antenna 52. The transmitting antenna 52 is electrically connected to the touch electrode layer 51 and is used to wirelessly transmit touch signals from the touch electrode layer 51. The receiving antenna 20 is used to receive touch signals sent by the transmitting antenna 52 and transmit the touch signals to the motherboard 10.

[0070] It is understandable that the touch signal transmitted by the transmitting antenna 52 can be an original touch signal, that is, an unprocessed touch signal. A processing chip can be provided on the mainboard 10, and the processing chip calculates the received original touch signal to obtain the coordinates of the touch point.

[0071] The touch electronic device 1 provided in the present application is provided with a transmitting antenna 52 electrically connected to the touch electrode layer 51 and a receiving antenna 20 electrically connected to the mainboard 10. In this way, the touch signal sensed by the touch electrode layer 51 can be wirelessly transmitted to the mainboard 10 of the touch electronic device 1, and the mainboard 10 processes the received touch signal to obtain touch information. Compared with the traditional touch module 50, in which the signal of the touch electrode layer 51 needs to be transmitted to the integrated circuit through leads and circuit boards, the touch electronic device 1 of the present application, on the one hand, does not need to set up complex wiring around the touch electrode layer 51, reducing the difficulty of wiring design and setting. On the other hand, it eliminates the circuit board and eliminates the need for bonding of the circuit board, thereby improving manufacturing efficiency and manufacturing yield. On the other hand, the touch chip can be integrated on the mainboard 10, thereby eliminating the need to set up the touch chip on the touch module 50, reducing the difficulty of manufacturing the touch module 50.

[0072] In one embodiment, the touch module 50 further includes a receiving coil 53 electrically connected to the touch electrode layer 51, and the touch electronic device 1 further includes a transmitting coil 40 electrically connected to the motherboard 10. The transmitting coil 40 is used to transmit energy to the receiving coil 53, and the receiving coil 53 is used to receive the energy transmitted by the transmitting coil 40 to generate electrical energy and supply the electrical energy to the touch electrode layer 51. As a result, the touch electrode layer 51 can form a stable capacitor. When a user's finger touches the touch surface, the capacitance changes, and the motherboard 10 can determine the location of the finger's touch based on the capacitance change.

[0073] In one embodiment, the receiving antenna 20 , the transmitting coil 40 , the transmitting antenna 52 , and the receiving coil 53 may be made of ITO (Indium tin oxide), gold, silver, copper, aluminum, tungsten, nickel, etc. The resistance of ITO is less than 20 ohms.

[0074] It should be noted that the touch electronic device 1 also includes a battery module 30, one electrical connection end of the battery module 30 is connected to the mainboard 10, and the other electrical connection end is electrically connected to the transmitting coil 40. The mainboard 10 controls the battery module 30 to supply electrical energy to the transmitting coil 40. The transmitting coil 40 transmits energy to the receiving coil 53 through magnetic field induction. The receiving coil 53 generates electrical energy by induction and supplies the electrical energy to the touch electrode layer 51. Among them, the voltage output by the receiving coil 53 is between 2.8V and 20V. In this way, on the one hand, it can ensure the normal operation of the touch electrode layer 51, and on the other hand, it prevents the voltage from being too high, ensuring the safety of the user when touching. It can be understood that the touch electrode layer 51 can be any one of a self-capacitive touch electrode and a mutual-capacitive touch electrode.

[0075] In one embodiment, referring to Figure 5 and Figure 6 As shown, the touch electronic device 1 further includes a display module 60 electrically connected to the mainboard 10, and the touch module 50 is disposed on the light-emitting side of the display module 60. The display module 60 can be an organic light-emitting diode (OLED) display module, a liquid crystal display (LCD) display module, a sub-millimeter light-emitting diode (Mini LED) display module, or a micron light-emitting diode (Micro LED) display module.

[0076] In this embodiment, the battery module 30 and the transmitting coil 40 can be arranged on the backlight side of the display module 60, and the orthographic projections of the transmitting coil 40 and the receiving coil 53 on the display module 60 have an overlapping area. This can make the distance between the transmitting coil 40 and the receiving coil 53 closer, thereby improving the wireless charging effect.

[0077] It is understandable that the touch module 50 and the display module 60 can be arranged in the following two ways:

[0078] In one embodiment, Figure 5As shown, the touch electrode layer 51 consists of only one layer, namely, the touch electrode layer 51 includes only a first electrode layer 511. The transmitting antenna 52 includes a first transmitting antenna 521 electrically connected to the first electrode layer 511, and the receiving coil 53 includes a first receiving coil 531 electrically connected to the first electrode layer 511. The first transmitting antenna 521 and the first receiving coil 531 are respectively disposed at opposite ends of the first electrode layer 511 in a first direction, where the first direction is perpendicular to the thickness of the touch electrode layer 51. Furthermore, adhesive layers 70 can be disposed between the touch electrode layer 51 and the display module 60, and between the touch electrode layer 51 and the cover plate 80, thereby firmly connecting the touch electrode layer 51, the cover plate 80, and the display module 60.

[0079] In another embodiment, Figure 6 As shown, the touch electrode layer 51 has two layers, namely, a first electrode layer 511 and a second electrode layer 512. The first electrode layer 511 can be a transmitting electrode, and the second electrode layer 512 can be a receiving electrode. In one embodiment, the first electrode layer 511 can be located on the side of the second electrode layer 512 closer to the display module 60.

[0080] Specifically, the transmitting antenna 52 includes a first transmitting antenna 521 electrically connected to the first electrode layer 511, and the receiving coil 53 includes a first receiving coil 531 electrically connected to the first electrode layer 511. The first transmitting antenna 521 and the first receiving coil 531 are respectively disposed at opposite ends of the first electrode layer 511 in a first direction. The transmitting antenna 52 includes a second transmitting antenna 522, and the receiving coil 53 includes a second receiving coil 532. The second transmitting antenna 522 and the second receiving coil 532 are respectively disposed at opposite ends of the second electrode layer 512 in a second direction, where the second direction is perpendicular to the thickness of the touch electrode layer 51 and the first direction. This allows the first receiving coil 531 and the second receiving coil 532 to be staggered in the thickness direction of the touch electrode layer 51 to prevent mischarging. Furthermore, the first transmitting antenna 521 and the second transmitting antenna 522 can be staggered in the thickness direction of the touch electrode layer 51 to prevent signal interference between them.

[0081] In another embodiment, the first electrode layer 511 can be disposed in the same layer as the second electrode layer 512. For example, the first electrode layer 511 can be arranged in a row direction, and the second electrode layer 512 can be arranged in a column direction, forming a coupling capacitor between the first electrode layer 511 and the second electrode layer 512. It is understood that when the first electrode layer 511 and the second electrode layer 512 are located in the same layer, the first receiving coil 531, the second receiving coil 532, the first transmitting antenna 521, and the second transmitting antenna 522 are all located in the same layer as the first electrode layer 511 and the second electrode layer 512.

[0082] In one embodiment, referring to Figure 7 and Figure 8 As shown, the touch module 50 can also be disposed on the substrate layer 90 , that is, the touch module 50 is not disposed on the display screen, for example, a touch panel on a laptop computer.

[0083] In one embodiment, referring to Figure 7 As shown, a protective layer 100 is provided on the side of the touch module 50 facing away from the substrate layer 90 , and a battery module 30 and a transmitting coil 40 are provided on the side of the substrate layer 90 facing away from the touch module 50 .

[0084] In another embodiment, referring to Figure 8 As shown, the first electrode layer 511 and the second electrode layer 512 of the touch module 50 are respectively disposed on both sides of the substrate layer 90. A protective layer 100 is disposed on both the side of the second electrode layer 512 facing away from the substrate layer 90 and the side of the first electrode layer 511 facing away from the substrate layer 90. The battery module 30 and the transmitting coil 40 are disposed on the side of the protective layer 100 adjacent to the first electrode layer 511 facing away from the first electrode layer 511.

[0085] In one embodiment, referring to Figure 9 As shown, the first electrode layer 511 includes multiple first sub-electrodes 5111 spaced apart along the second direction b, and each first sub-electrode 5111 extends along the first direction a. The first transmitting antenna 521 includes multiple first sub-antennas 5211, and the first receiving coil 531 includes multiple first sub-coils 5311. The multiple first sub-antennas 5211 and the multiple first sub-coils 5311 are each connected to the first sub-electrodes 5111 in a one-to-one correspondence. The second direction b is perpendicular to the thickness direction of the touch electrode layer 51 and the first direction a.

[0086] In this way, each first sub-coil 5311 can independently provide power to each first sub-electrode 5111, and each first sub-antenna 5211 can independently transmit the touch signal of each first sub-electrode 5111. This prevents electrical contact between the first sub-electrodes 5111, which could cause a short circuit. Furthermore, it prevents touch signals from multiple first sub-electrodes 5111 from being transmitted through the same first transmitting antenna 521, allowing the motherboard 10 to accurately identify the touch location after receiving the signal.

[0087] In one embodiment, referring to Figure 10 As shown, the second electrode layer 512 includes a plurality of second sub-electrodes 5121 spaced apart along the first direction a, and each second sub-electrode 5121 extends along the second direction b. The second transmitting antenna 522 includes a plurality of second sub-antennas 5221, and the second receiving coil 532 includes a plurality of second sub-coils 5321. The plurality of second sub-antennas 5221 and the plurality of second sub-coils 5321 are each connected to the second sub-electrodes 5121 in a one-to-one correspondence.

[0088] In this way, each second sub-coil 5321 can independently provide power to each second sub-electrode 5121, and each second sub-antenna 5221 can independently transmit the touch signal for each second sub-electrode 5121. This prevents electrical contact between the second sub-electrodes 5121, which could cause a short circuit. Furthermore, it prevents touch signals from multiple second sub-electrodes 5121 from being transmitted through the same second transmitting antenna 522, allowing the motherboard 10 to accurately identify the touch location after receiving the signal.

[0089] In one embodiment, referring to Figure 9 and Figure 10 As shown, the first transmitting antenna 521 and the first receiving coil 531 can be located within an outer extension region of the first electrode layer 511. This outer extension region originates from a side edge of the first electrode layer 511 and extends away from the first electrode layer 511 along a first direction a. The length of this outer extension region in the first direction a is L. Similarly, the second transmitting antenna 522 and the second receiving coil 532 can be located within an outer extension region of the second electrode layer 512. This outer extension region originates from a side edge of the second electrode layer 512 and extends away from the second electrode layer 512 along a second direction b. The length of this outer extension region in the first direction a is L.

[0090] Specifically, the value of L can be no greater than 20 mm. It is understood that the first electrode layer 511 and the second electrode layer 512 are generally located in the display area of ​​the display screen, while the transmitting antenna 52 and the receiving coil 53 are generally located in the non-display area of ​​the display screen. By limiting the value of L, the screen-to-body ratio of the touch-sensitive electronic device 1 can be maximized.

[0091] Throughout this specification, references to terms such as "some embodiments," "other embodiments," and "desired embodiments" indicate that a particular feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present application. The schematic descriptions of these terms throughout this specification do not necessarily refer to the same embodiment or example.

[0092] The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features of the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0093] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A touch module for touch-controlled electronic devices, characterized in that: include: touch electrode layer; a transmitting antenna, electrically connected to the touch electrode layer, and configured to transmit the touch signal on the touch electrode layer to a mainboard of the touch electronic device; a receiving coil, electrically connected to the touch electrode layer, for receiving energy transmitted by the transmitting coil of the touch electronic device to generate electrical energy and supply the electrical energy to the touch electrode layer; The touch electrode layer includes a first electrode layer, the transmitting antenna includes a first transmitting antenna electrically connected to the first electrode layer, and the receiving coil includes a first receiving coil electrically connected to the first electrode layer; The touch electrode layer includes a second electrode layer, the transmitting antenna includes a second transmitting antenna electrically connected to the second electrode layer, and the receiving coil includes a second receiving coil electrically connected to the second electrode layer.

2. The touch module according to claim 1, wherein: The first transmitting antenna and the first receiving coil are respectively disposed at two opposite ends of the first electrode layer in a first direction, and the first direction is perpendicular to a thickness direction of the touch electrode layer.

3. The touch module according to claim 2, wherein: The second transmitting antenna and the second receiving coil are respectively arranged at two opposite ends of the second electrode layer in a second direction; the second direction is perpendicular to the thickness direction of the touch electrode layer and the first direction.

4. The touch module according to claim 3, wherein: The first electrode layer and the second electrode layer are arranged in the same layer; Alternatively, the second electrode layer is located on one side of the first electrode layer along the thickness direction.

5. The touch module according to claim 2, wherein: The first electrode layer includes a plurality of first sub-electrodes spaced apart along a second direction, and each of the first sub-electrodes extends along the first direction; the first transmitting antenna includes a plurality of first sub-antennas, and the first receiving coil includes a plurality of first sub-coils, and the plurality of first sub-antennas and the plurality of first sub-coils are connected to the first sub-electrodes in a one-to-one correspondence; The second direction is perpendicular to the thickness direction of the touch electrode layer and the first direction.

6. The touch module according to claim 3, wherein: The second electrode layer includes a plurality of second sub-electrodes arranged at intervals along the first direction, and each second sub-electrode extends along the second direction; the second transmitting antenna includes a plurality of second sub-antennas, and the second receiving coil includes a plurality of second sub-coils, and the plurality of second sub-antennas and the plurality of second sub-coils are all connected to the second sub-electrodes in a one-to-one correspondence.

7. A touch-controlled electronic device, characterized in that: include: The touch module according to any one of claims 1 to 6; A mainboard is provided with a receiving antenna, and the receiving antenna is used to receive a touch signal sent by a transmitting antenna of the touch module and transmit the touch signal to the mainboard.

8. The touch-controlled electronic device according to claim 7, wherein: The touch-sensitive electronic device further includes a transmitting coil electrically connected to the mainboard, and the transmitting coil is used to transmit energy to the receiving coil of the touch-sensitive module.

9. The touch-controlled electronic device according to claim 7 or 8, wherein: The touch electronic device further includes a display module electrically connected to the mainboard, and the touch module is arranged on the light-emitting side of the display module.

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