Touch device and electronic equipment

Abstract

The embodiment of the utility model provides a touch device and electronic equipment. The touch device comprises a panel and a circuit board assembly. The panel is provided with keys; the circuit board assembly comprises a circuit board and a plurality of pressure sensors, the circuit board is installed on the panel and right faces the keys, and the pressure sensors are all arranged on the circuit board; wherein the number of the pressure sensors is larger than that of the keys, and at least one pressure sensor is located outside the orthographic projection of the keys on the plane where the circuit board is located. According to the touch control device, mistaken touch on the panel can be detected through the pressure sensor located outside the orthographic projection of the key on the plane where the circuit board is located, and therefore the accuracy of the detection result of the touch control device is improved.

Description

Technical Field

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

[0002] Touch devices are commonly used in electronic devices such as home appliances, handheld tablet computers, smart phones, and laptop computers, and are used as input devices for human-computer interaction operations of the electronic devices.

[0003] In the related art, the panel of the touch device is usually provided with buttons for users to press, but in actual use, when the user or some external objects accidentally touch the non-button area of ​​the panel, it is easy to cause the touch device to misjudge and trigger the corresponding function of the electronic device.

[0004] Therefore, the prior art needs to be improved and enhanced. Summary of the invention

[0005] In view of the above problems, the embodiments of the present application provide a touch device and an electronic device to solve the above technical problems.

[0006] In a first aspect, an embodiment of the present application provides a touch control device, including:

[0007] A panel having buttons; and

[0008] A circuit board assembly, the circuit board assembly comprising a circuit board and a plurality of pressure sensors, the circuit board is mounted on the panel and arranged directly opposite to the button, and the pressure sensors are all arranged on the circuit board;

[0009] The number of the pressure sensors is greater than the number of the buttons, and at least one of the pressure sensors is located outside the orthographic projection of the button on the plane where the circuit board is located.

[0010] In a second aspect, an embodiment of the present application further provides an electronic device, comprising the touch control device as described above.

[0011] In the embodiment of the present application, assuming that the orthographic projection of the button on the circuit board is the first projection, the pressure sensor located outside the first projection can detect the deformation caused by pressing or colliding the non-button area of ​​the panel, thereby reducing the misjudgment of the touch device caused by accidental touching of the non-button area of ​​the panel, thereby improving the accuracy of the touch device.

[0012] These and other aspects of the present application will become more clearly understood in the description of the following embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 This is a schematic diagram of the first structure of the touch control device provided in the embodiment of the present application.

[0015] Figure 2 for Figure 1 A schematic diagram of the arrangement of pressure sensors and buttons in a touch control device is shown.

[0016] Figure 3 This is a schematic diagram of a second structure of a touch control device provided in an embodiment of the present application.

[0017] Figure 4 for Figure 1 A schematic diagram of a second arrangement position of pressure sensors and buttons in a touch control device is shown.

[0018] Figure 5 for Figure 4 A schematic diagram of the arrangement positions of pressure sensors and buttons in a touch control device from another perspective is shown.

[0019] Figure 6 for Figure 1 A schematic structural diagram of the front side of the pressure sensor is shown.

[0020] Figure 7 for Figure 1 Schematic diagram of the structure of the back side of the pressure sensor shown.

[0021] Figure 8 for Figure 1 A schematic diagram of the installation method of the circuit board in the touch control device is shown.

[0022] Fig. 9 for Figure 1 A schematic diagram of the structure of an adhesive layer in a touch control device is shown.

[0023] Fig.10 for Fig. 9 A partial enlarged view of the bonding layer.

[0024] Fig.11 for Fig. 9 Schematic diagram of the structure on the other side of the circuit board.

[0025] Fig.12 for Figure 5 A partial enlarged view of the circuit board.

[0026] Fig.13This is a front view of the electronic device provided in an embodiment of the present application.

[0027] Fig.14 for Figure 1 A side view of the electronic device is shown.

[0028] Fig.15 for Fig.13 A schematic diagram of a working state of the electronic device shown.

[0029] The numbers in the figure are:

[0030] 100. Panel;

[0031] 11. Button; 11a. Button group;

[0032] 200. Circuit board assembly;

[0033] 21. Circuit board; 211. First groove; 212. Control circuit; 213. Electrical connection portion; 22. Pressure sensor; 221. First pressure sensor; 222. Second pressure sensor; 223. Sensor pad; 224. Resistor; 225. Third groove;

[0034] 300, adhesive layer;

[0035] 31. bonding portion; 32. second groove;

[0036] 400, housing;

[0037] 41. Front; 42. Side; 43. First indication mark;

[0038] 500, display screen;

[0039] 51. Second indicator sign. DETAILED DESCRIPTION

[0040] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0041] In order to enable those skilled in the art to better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application.

[0042] In the embodiments of the present application, it should be noted that, in this article, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0043] Moreover, the terms "comprises," "comprising," or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0044] In the description of the embodiments of the present application, words such as "example" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "example" or "for example" in the embodiments of the present application is not to be interpreted as being more preferred or having more advantages than another embodiment or design. The use of words such as "example" or "for example" is intended to present relative concepts in a clear manner.

[0045] In addition, the "plurality" in the embodiments of the present application refers to two or more than two. In view of this, in the embodiments of the present application, "plurality" can also be understood as "at least two". "At least one" can be understood as one or more, for example, one, two or more. For example, including at least one means including one, two or more, and there is no limit on which ones are included. For example, including at least one of A, B and C, then A, B, C, A and B, A and C, B and C, or A, B and C can be included.

[0046] It should be noted that, in the embodiments of the present application, "and / or" describes the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / ", unless otherwise specified, generally indicates that the associated objects before and after are in an "or" relationship.

[0047] It should be noted that in the embodiments of the present application, "connection" can be understood as electrical connection, and the connection between two electrical components can be a direct or indirect connection between the two electrical components. For example, the connection between A and B can be either a direct connection between A and B or an indirect connection between A and B through one or more other electrical components.

[0048] Touch devices are commonly used in electronic devices such as home appliances, handheld tablet computers, smart phones, and laptop computers, and are used as input devices for human-computer interaction operations of the electronic devices.

[0049] In the related art, the panel of the touch device is usually provided with buttons for users to press. And a pressure sensor corresponding to the button is also provided on the inner side of the panel. Therefore, after the user presses the button, the button can trigger the corresponding pressure sensor. However, in actual use, when the user or some external objects accidentally touch the non-button area of ​​the panel, it is easy to trigger the pressure sensor, thereby causing the touch device to misjudge.

[0050] Based on this, the embodiments of the present application provide a touch device and an electronic device to improve the accuracy of the touch device in responding to touch operations.

[0051] Please refer to Figure 1 , Figure 1 A first structural schematic diagram of a touch device provided in an embodiment of the present application. First, an embodiment of the present application provides a touch device. The touch device may include a panel 100 and a circuit board assembly 200. The panel 100 is provided with a button 11. The circuit board assembly 200 includes a circuit board 21 and a plurality of pressure sensors 22. The circuit board 21 is mounted on the panel 100 and arranged opposite to the button 11, and the plurality of pressure sensors 22 are all arranged on the circuit board 21. Therefore, when the user presses the button 11, the button 11 may be directly pressed onto at least part of the pressure sensor 22 to trigger the pressure sensor, or the button 11 may cause the circuit board 21 to deform together, and after the circuit board 21 is deformed, the pressure sensor 22 on the circuit board 21 may be triggered, so that the touch device can detect or accept the user's pressing operation.

[0052] The number of the pressure sensors 22 may be greater than the number of the buttons 11 , and at least one pressure sensor 22 is located outside the orthographic projection of the button 11 on the plane where the circuit board 21 is located.

[0053] Then, assuming that the orthographic projection of the button 11 on the circuit board 21 is the first projection, the pressure sensor 22 located outside the first projection can detect the deformation caused by pressing or colliding the non-button area of ​​the panel 100, thereby reducing the misjudgment of the touch device caused by accidental touching of the non-button area of ​​the panel 100, and further improving the accuracy of the touch device in responding to touch operations.

[0054] The above is an overall explanation of the touch control device in the embodiment of the present application. The following first illustrates the technical solution of the embodiment of the present application in combination with some relative arrangement relationships between the pressure sensor 22 and the button 11.

[0055] First, take the example that only a part of the pressure sensor 22 is located outside the orthographic projection of the button 11 on the plane where the circuit board 21 is located.

[0056] Please continue to refer to Figure 2 , Figure 2 for Figure 1 Schematic diagram of the arrangement of pressure sensors and buttons in the touch device shown. The multiple pressure sensors 22 may include a first pressure sensor 221 and a second pressure sensor 222. The first pressure sensor 221 is located outside the orthographic projection of the button 11 on the plane where the circuit board 21 is located. The second pressure sensor 222 at least partially overlaps with the orthographic projection of the button 11 on the plane where the circuit board 21 is located.

[0057] Then, by comparing the data detected by the first pressure sensor 221 and the second pressure sensor 222, it can be determined whether the pressing operation on the panel 100 is a false touch. For example, when the pressure detected by the first pressure sensor 221 is much greater than the pressure detected by the second pressure sensor 222, it can be determined that the panel 100 is falsely touched. On the contrary, when the pressure detected by the second pressure sensor 222 is close to or greater than the pressure detected by the first pressure sensor 221, it can be determined that the panel 100 is not falsely touched. It can be seen that the embodiment of the present application can improve the accuracy of the touch device through the cooperation of the first pressure sensor 221 and the second pressure sensor 222.

[0058] It is understandable that the number of the buttons 11 can be one or more such as two, three, four or even five, which is not limited in the present embodiment. Accordingly, the number of the first pressure sensor 221 and the second pressure sensor 222 can also be one or more.

[0059] When the number of the key 11 is one, the number of the second pressure sensor 222 is one and is arranged opposite to the key 11. At this time, the number of the first pressure sensor 221 can be one or more.

[0060] For example, there may be one key 11 and one second pressure sensor 222. In this case, one first pressure sensor 221 and one second pressure sensor 222 are arranged in a direction parallel to the circuit board 21, so that one pressure sensor 22 is located on the outer peripheral side of the key 11.

[0061] Optionally, when the number of the button 11 and the number of the second pressure sensor 222 are both one, at least two first pressure sensors 221 may be arranged around the outer periphery of the second pressure sensor 222, such as two, three or four first pressure sensors 221 and second pressure sensors 222 evenly spaced apart from each other, so that false touches in more areas around the button 11 can be detected by multiple first pressure sensors 221, thereby improving the accuracy of the touch device in responding to touch operations.

[0062] Taking the example that the number of the keys 11 is at least two, a first pressure sensor 221 is provided on a side of at least one key 11 facing away from an adjacent key 11 .

[0063] For example, two adjacent buttons 11 are the first button 11 and the second button 11, and the first pressure sensor 221 may be provided on the side of the first button 11 away from the second button 11, or the first pressure sensor 221 may be provided on the side of the second button 11 away from the first button 11. Of course, the first pressure sensor 221 may also be provided on the side of the first button 11 away from the second button 11 and the side of the second button 11 away from the first button 11. The embodiment of the present application does not limit this. Thus, the probability of mis-touch on the side of the first button 11 away from the second button 11 and / or the side of the second button 11 away from the first button 11 can be reduced, so as to improve the accuracy of the touch device in responding to touch operations.

[0064] Continuing with the example that the number of keys 11 is at least two, a first pressure sensor 221 may also be provided between at least two adjacent keys 11 .

[0065] For example, two adjacent keys 11 are respectively a first key 11 and a second key 11, and a first pressure sensor 221 may be provided between the first key 11 and the second key 11. Thus, the probability of a false touch between the first key 11 and the second key 11 can be reduced, so as to improve the accuracy of the touch device in responding to the touch operation.

[0066] It can also be understood that the number of keys 11 may be at least two, at least one key 11 may be provided with a first pressure sensor 221 on a side facing away from an adjacent key 11 , and / or a first pressure sensor 221 may be provided between at least two adjacent keys 11 .

[0067] That is to say, continuing with the two adjacent buttons 11 as the first button 11 and the second button 11, the first pressure sensor 221 may be provided only on the side of the first button 11 facing away from the second button 11, or the first pressure sensor 221 may be provided only on the side of the second button 11 facing away from the first button 11, or the first button 11 and the second button 11 may be arranged between the two first pressure sensors 221, and no first pressure sensor 221 may be provided between the first button 11 and the second button 11, or the first button 11 and the second button 11 may be arranged between the two first pressure sensors 221, and a first pressure sensor 221 may be provided between the first button 11 and the second button 11, and the embodiment of the present application does not limit this.

[0068] In some embodiments, at least a plurality of buttons 11 may be arranged along a first direction to form a button group 11a, and each side of the button group 11a along the first direction is provided with a first pressure sensor 221. The first direction may be a straight direction such as the length direction of the circuit board 21, or a curved direction such as a clockwise direction, which is not limited in the present embodiment.

[0069] For example, a first pressure sensor 221 may be provided at each end of the circuit board 21 in the length direction, and a plurality of buttons 11 such as four, five or six buttons 11 may be arranged between two first pressure sensors 221 along the length direction of the circuit board 21 .

[0070] Furthermore, only two first pressure sensors 221 are needed to prevent accidental touches on both sides of the entire button group 11a along the length direction of the circuit board 21, so that the touch device has the advantages of low cost and small size on the basis of high accuracy in responding to touch operations, thus meeting actual production needs.

[0071] The above are some examples of only some of the pressure sensors 22 being located outside the orthographic projection of the button 11 on the plane where the circuit board 21 is located. Next, the technical solution of the embodiment of the present application will be described by taking the example of each pressure sensor 22 being located outside the orthographic projection of the button 11 on the plane where the circuit board 21 is located as an example.

[0072] Please continue to refer to Figure 3 , Figure 3 This is a second structural diagram of the touch control device provided in the embodiment of the present application. Exemplarily, the number of the button 11 is at least one, and each button 11 is located between two pressure sensors 22 .

[0073] For example, the first pressure sensor 22 and the second pressure sensor 22 may be arranged at intervals, and the third button 11 may be located between the first pressure sensor 22 and the second pressure sensor 22. Then, when the user presses the third button 11, the pressure detected by the first pressure sensor 22 and the second pressure sensor 22 may be substantially equal. At this time, if the pressure detected by one of the first pressure sensor 22 and the second pressure sensor 22 is much greater than the other, it can be determined that the user is not pressing the third button 11, or that the pressing operation on the panel 100 is determined to be a false touch, thereby improving the accuracy of the touch device in responding to the touch operation.

[0074] Please continue to refer to Figure 4 and Figure 5 , Figure 4 for Figure 1 The second arrangement position diagram of the pressure sensor and the button in the touch control device is shown in FIG. Figure 5 for Figure 4 A schematic diagram of the arrangement position of the pressure sensor and the button in the touch device from another perspective is shown. In some embodiments, the number of buttons 11 is at least two, and at least two buttons 11 and multiple pressure sensors 22 are arranged alternately and spaced along the first direction. The first direction can be a straight line direction such as the length direction of the circuit board 21, and the first direction can also be a curved direction such as a clockwise direction, which is not limited in the embodiments of the present application.

[0075] For example, there may be five buttons 11 and six pressure sensors 22. The six pressure sensors 22 are arranged at intervals along the length direction of the circuit board 21, and a button 11 is provided between each two adjacent pressure sensors 22.

[0076] Then, it can be determined that the two pressure sensors 22 with the largest pressure detected among the multiple pressure sensors 22 are the target pressure sensors 22. At this time, if the two target pressure sensors 22 are adjacent to each other and the pressures detected by the two target pressure sensors 22 are close, it is further determined whether the pressures detected by the two target pressure sensors 22 are greater than a preset value; for example, if it is determined that the sum of the pressures detected by the two target pressure sensors 22 is greater than a preset value, it is determined that the key 11 between the two target pressure sensors 22 is pressed.

[0077] In addition, it is assumed that all the keys 11 form a key group. At this time, if only the pressure sensor 22 located outside the key group detects pressure, or the pressure detected by the pressure sensor 22 located outside the key group is much greater than the pressure detected by the pressure sensor 22 located inside the key group, it can be determined that a non-key area on the panel 100 is pressed, thereby reducing the probability of false touches.

[0078] It can be seen that the embodiment of the present application can achieve anti-mistouch on both sides of each key 11 by only having one more pressure sensor 22 than the number of keys 11, so that the touch device not only has the advantages of high accuracy in responding to touch operations, but also has the advantages of low cost and small size, ultimately meeting actual production needs.

[0079] In some embodiments, the center distance between the pressure sensor 22 located outside the orthographic projection of the button 11 on the plane where the circuit board 21 is located and the adjacent button 11 may be greater than or equal to 14 mm.

[0080] Then, continuing to assume that the pressure sensor 22 located outside the orthographic projection of the button 11 on the plane where the circuit board 21 is located is the first pressure sensor 221, it can be simply understood that the distance between the first pressure sensor 221 and the adjacent button 11 is greater than or equal to 14 mm, thereby avoiding misjudgment caused by the distance between the first pressure sensor 221 and the adjacent button 11 being too close.

[0081] For example, the center distance between the pressure sensor 22 located outside the orthographic projection of the button 11 on the plane of the circuit board 21 and the adjacent button 11 can be 14 mm, 14.5 mm, 16 mm, 17 mm, 19.3 mm, 20 mm, etc., which is not limited to this embodiment of the present application.

[0082] In some embodiments, the centers of all pressure sensors 22 are located on a straight line L1, and the centers of all buttons 11 are located on a straight line L2, and L1 and L2 can be parallel to each other. Thus, not only the arrangement of the buttons 11 is more neat and beautiful, but also the arrangement of all pressure sensors 22 is more neat, so as to facilitate quick assembly.

[0083] In some embodiments, L1 and L2 can overlap to make the positional relationship between different pressure sensors 22 and the button 11 more consistent, so that the touch device or a processor external to the touch device can more simply and accurately determine whether it is a false touch, and the pressure received by the button 11 can be more accurately transmitted to the corresponding pressure sensor 22, thereby improving the sensitivity of the touch device.

[0084] The above are some examples of the relative positions of the pressure sensor 22 and the button 11 in the embodiment of the present application. Next, the technical solution of the embodiment of the present application will be described with examples in combination with some structures of the pressure sensor 22 itself.

[0085] Please continue to refer to Figure 6 , Figure 6 for Figure 1The schematic diagram of the structure of the front side of the pressure sensor is shown. The pressure sensor 22 may be a patchable sensor. The pressure sensor 22, such as the pressure sensor 22, is provided with a sensor pad 223 on the front side, and the sensor pad 223 is electrically connected to the circuit board 21, so that the pressure sensor 22 can be patched to the circuit board 21 through the sensor pad 223.

[0086] Please continue to refer to Figure 7 , Figure 7 for Figure 1 In some embodiments, the pressure sensor 22 is provided with four resistors 224 symmetrically distributed along the center on the back side of the pressure sensor 22, and the four resistors 224 form a Wheatstone bridge through internal circuits.

[0087] At this time, according to the requirement that the pressure sensor 22 needs to adopt a single-arm, double-arm, or full-bridge circuit, the number of pressure-sensing resistors in the four resistors 224 can be 1, 2, or 4, respectively. Correspondingly, the number of fixed resistors with fixed resistance values ​​in the four resistors 224 can be 3, 2, or 0, respectively.

[0088] For example, a sensor pad 223 is provided at each of the four corners of the pressure sensor 22. The four sensor pads 223 are respectively connected to VS, GND, S+, and S- of the Wheatstone bridge and are welded and fixed to the circuit board 21, thereby realizing the electrical and mechanical connection between the pressure sensor 22 and the circuit board 21.

[0089] In some embodiments, the pressure sensor 22 may be provided with a third groove 225. Thus, the third groove 225 may make it easier for the pressure sensor 22 to deform, thereby making the deformation of the pressure sensor 22 more concentrated, and finally improving the sensitivity of the pressure sensor 22.

[0090] For example, the pressure sensor 22 is provided with third grooves 225 on both sides and in the middle along the width direction, and the second stress can be arranged along the center line of the pressure sensor 22 .

[0091] In some embodiments, the pressure sensor 22 may be located on the side of the circuit board 21 facing away from the panel 100. Further, when the button 11 receives a pressing operation, the deformation of the pressure sensor 22 may be greater than that of the pressure sensor 22 located on the side of the circuit board 21 facing the panel 100, so as to improve the sensitivity of the pressure sensor 22.

[0092] Of course, in some other implementations, the pressure sensor 22 may also be located on the side of the circuit board 21 facing the panel 100 , which is not limited in the embodiment of the present application.

[0093] The above are some examples of the pressure sensor 22 in the embodiment of the present application. The following will continue to illustrate the technical solution of the embodiment of the present application with examples in combination with some installation methods of the circuit board 21.

[0094] Please continue to refer to Figure 8 , Figure 8 for Figure 1 Schematic diagram of the installation method of the circuit board in the touch control device shown. The touch control device may also include an adhesive layer 300. The adhesive layer 300 is respectively bonded and fixed to the circuit board 21 and the panel 100. Therefore, not only can the connection and fixation between the circuit board 21 and the panel 100 be achieved through the adhesive layer 300, but also the deformation or pressure formed when the key 11 is pressed can be well transferred to the circuit board 21 through the adhesive layer 300, so that the pressure sensor 22 on the circuit board 21 can detect the pressing operation.

[0095] Please continue to refer to Fig. 9 , Fig. 9 for Figure 1 A schematic diagram of a structure of an adhesive layer in a touch control device is shown. In some embodiments, the adhesive layer 300 includes a plurality of adhesive portions 31, each adhesive portion 31 is disposed corresponding to a different pressure sensor 22, and two adjacent adhesive portions 31 are at least partially separated.

[0096] Therefore, when the button 11 receives a pressing operation, the deformation at the corresponding bonding portion 31 is not easily transmitted to the adjacent bonding portion 31. Therefore, on the one hand, the deformation at the pressure sensor 22 corresponding to the button 11 can be made larger, thereby improving the sensitivity of the pressure sensor 22; on the other hand, it can also avoid interference with the pressure sensor 22 corresponding to the adjacent button 11 and form a misjudgment, thereby improving the accuracy of the touch device.

[0097] It can also be understood that two adjacent bonding portions 31 are at least partially separated. The two adjacent bonding portions 31 may be completely separated, or a separation groove, a separation hole, or a seam line may be provided between the two adjacent bonding portions 31 to achieve partial separation. The embodiment of the present application does not limit this.

[0098] Exemplarily, the distance between two adjacent bonding portions 31 is greater than or equal to 1 mm. For example, the distance between two adjacent bonding portions 31 may be 1 mm, 1.14 mm, 1.17 mm, 1.2 mm, 1.23 mm, 1.31 mm, 1.41 mm, 1.47 mm, 1.53 mm, 1.57 mm, 1.6 mm, 1.69 mm, 1.7 mm, 2 mm or 2.5 mm, etc., which is not limited in the embodiments of the present application.

[0099] Then, on the one hand, it means that the two adjacent bonding parts 31 are completely separated, thereby preventing the deformation at the bonding part 31 from being transferred to the adjacent bonding part 31. On the other hand, the preset spacing between the two adjacent bonding parts 31 is set to be greater than or equal to 1 mm, so that even if it is affected by factors such as geometric tolerance during the production process, the two adjacent bonding parts 31 are not easy to abut each other.

[0100] In some embodiments, the orthographic projection of the bonding portion 31 on the plane where the circuit board 21 is located covers the corresponding pressure sensor 22. Therefore, on the one hand, the area of ​​the bonding portion 31 can be made large enough to ensure the connection strength of the circuit board 21. On the other hand, the pressure or deformation distribution transmitted from the bonding portion 31 to the corresponding pressure sensor 22 can be made more reasonable.

[0101] In some embodiments, the orthographic projection of the bonding portion 31 on the plane where the circuit board 21 is located is located inside the circuit board 21. Therefore, the bonding portion 31 can be prevented from leaking out, so that the interior of the touch device is more neat and beautiful.

[0102] It can also be understood that, in actual use, the distance between two adjacent adhesive portions 31 may be greater than or equal to 1 mm, and / or the orthographic projection of the adhesive portion 31 on the plane of the circuit board 21 covers the corresponding pressure sensor 22, and the embodiments of the present application are not limited to this.

[0103] In some embodiments, the thickness of the adhesive layer 300 may be greater than or equal to 0.05 mm and less than or equal to 0.2 mm. Thus, on the one hand, the adhesive layer 300 may have sufficient strength to ensure the connection strength between the panel 100 and the circuit board 21; on the other hand, the adhesive layer 300 may be prevented from being too thick, which may make it difficult for the pressure at the button 11 to be transmitted to the pressure sensor 22, thereby improving the sensitivity of the pressure sensor 22.

[0104] For example, the thickness of the adhesive layer 300 may be 0.05 mm, 0.08 mm, 0.1 mm, 0.114 mm, 0.12 mm, 0.13 mm, 0.147 mm, 0.15 mm, 0.167 mm, 0.179 mm, 0.18 mm, 0.191 mm or 0.2 mm, etc., which is not limited to the embodiments of the present application.

[0105] In some embodiments, the adhesive layer 300 may be a tape, a plaster, or glue coated on the panel 100 , which is not limited in the embodiments of the present application.

[0106] Please continue to refer to Fig.10 , Fig.10 for Fig. 9A partial enlarged view of the adhesive layer in the circuit board 21. In some embodiments, the circuit board 21 may be provided with a plurality of groups of first grooves 211, and each group of first grooves 211 at least partially overlaps with the orthographic projection of a pressure sensor 22 on the plane where the circuit board 21 is located. Thus, the first grooves 211 can make it easier for the pressure sensor 22 to deform, and make the deformation at the pressure sensor 22 more concentrated, ultimately improving the sensitivity of the pressure sensor 22; and, it can also reduce the phase change or pressure transmitted from the circuit board 21 to the adjacent pressure sensor 22, thereby reducing the probability of false touch of the touch device.

[0107] Exemplarily, each group of first grooves 211 may include two first grooves 211 , and the two first grooves 211 are respectively located on different sides in the width direction of the circuit board 21 . And the center line of each group of first grooves 211 may coincide with the center line of the corresponding pressure sensor 22 .

[0108] In some embodiments, the adhesive layer 300 is provided with a plurality of groups of second grooves 32, and the orthographic projection of each group of second grooves 32 and a group of first grooves 211 on the plane where the circuit board 21 is located at least partially overlaps. Thus, through the cooperation between the second grooves 32 and the first grooves 211, the pressure sensor 22 can be more easily deformed, and the deformation of the pressure sensor 22 can be more concentrated, thereby ultimately improving the sensitivity of the pressure sensor 22; and the phase change or pressure transmitted to the adjacent pressure sensors 22 can also be reduced, thereby reducing the probability of false touch of the touch device.

[0109] Please continue to refer to Fig.11 , Fig.11 for Fig. 9 Schematic diagram of the structure of the other side of the circuit board. It can also be understood that, in combination with the above-mentioned pressure sensor 22, the third groove 225 is provided, so that the centers of the first groove 211, the second groove 32 and the third groove 225 corresponding to each pressure sensor 22 can coincide. Therefore, through the cooperation of the third groove 225, the second groove 32 and the first groove 211, the pressure sensor 22 can be more easily deformed, and the deformation of the pressure sensor 22 can be more concentrated, and finally the sensitivity of the pressure sensor 22 can be improved; and the phase change or pressure transmitted to the adjacent pressure sensor 22 can be reduced, thereby reducing the probability of false touch of the touch device.

[0110] It can also be understood that the orthographic projections of different grooves may overlap at least partially or completely, or the area of ​​a certain group of grooves may be larger so as to cover the grooves of other groups. This embodiment of the present application is not limited to this.

[0111] In some implementations, the circuit board 21 may also be fixed to the panel 100 by screwing, snapping, etc., which is not limited in the embodiments of the present application.

[0112] The above is an example of some installation methods of the circuit board 21 in the embodiment of the present application. The following will continue to illustrate the technical solution of the embodiment of the present application in combination with some other structures of the circuit board 21.

[0113] The circuit board 21 may be a PCB (Printed Circuit Board), such as a PCB with an FR4 (glass fiber epoxy resin) substrate, a copper clad laminate substrate, a ceramic substrate, etc., which is not limited in the embodiment of the present application.

[0114] The circuit board 21 may also include a circuit board 21 formed by a composite of an FPC board (Flexible Printed Circuit) and an elastic reinforcing plate. For example, the elastic reinforcing plate may be made of PI (Polyimide) or FR4, which is not limited in the present embodiment.

[0115] Please continue to refer to Fig.12 , Fig.12 for Figure 5 In some embodiments, the circuit board 21 may further include at least one of a control circuit 212 and an electrical connection portion 213 .

[0116] The control circuit 212 may be electrically connected to the pressure sensor 22 to collect and process touch signals detected and collected by the pressure sensor 22 .

[0117] The electrical connection portion 213 can be used to electrically connect to an external device. Thus, touch-related information can be input or output through the electrical connection portion 213, and electrical energy can be input to drive the touch device to work, etc., which is not limited in the embodiment of the present application.

[0118] The electrical connection portion 213 may include contacts, springs, wires, electrical connectors, etc., which are not limited in this embodiment of the present application.

[0119] The above are some examples of the circuit board 21 in the embodiment of the present application. The following will continue to illustrate the panel 100 in the embodiment of the present application.

[0120] The button 11 may be a part independently mounted on the panel 100, or a concave-convex structure on the panel 100, or a graphic and / or text logo formed by printing, spraying, electroplating, etc., which is not limited in the embodiments of the present application.

[0121] For example, if the key 11 is a concave-convex structure on the panel 100, the height or depth of the key 11 can be between 0.2 mm and 0.4 mm. This can avoid affecting the strength of the panel 100 and ensure that the user can clearly feel the position of the key 11 when touching it, thereby reducing the probability of accidental touch of the touch device.

[0122] For example, the height or depth of the key 11 may be 0.2 mm, 0.22 mm, 0.27 mm, 0.3 mm, 0.34 mm or 4 mm, which is not limited in the embodiments of the present application.

[0123] In some embodiments, the thickness of the panel 100 may be between 0.5 mm and 1.5 mm, so as to avoid the panel 100 being too thin and insufficient in strength, and to avoid the panel 100 being too thick and making it difficult for the user to press the button 11.

[0124] For example, the thickness of the panel 100 may be 0.5 mm, 0.57 mm, 0.613 mm, 0.67 mm, 0.7 mm, 0.89 mm, 1 mm, 1.23 mm or 1.5 mm, etc., which is not limited in the embodiments of the present application.

[0125] The above are some examples of the touch control device according to the embodiment of the present application.

[0126] An embodiment of the present application further provides an electronic device, which may include the touch control device as described in any one of the above items.

[0127] Then, taking the orthographic projection of the button 11 on the circuit board 21 as the first projection, the pressure sensor 22 located outside the first projection can detect the deformation caused by pressing or colliding the non-button area of ​​the panel 100, thereby reducing the misjudgment of the touch device caused by the non-button area of ​​the panel 100 being accidentally touched, and further improving the accuracy of the touch device in responding to touch operations.

[0128] Please continue to refer to Fig.13 and Fig.14 , Fig.13 This is a front view of an electronic device provided in an embodiment of the present application. Fig.14 for Figure 1 In some embodiments, the electronic device includes a housing 400 and a display screen 500. The housing 400 has a front side 41 and a side 42 adjacent to the front side 41. The display screen 500 is at least partially disposed on the front side 41. The button 11 can be located on the side 42 or the side 42.

[0129] It is understandable that the panel 100 may be a part of the housing 400 , or may be independently mounted on the housing 400 , so that the button 11 is located on the front 41 or the side 42 , and this embodiment of the present application does not limit this.

[0130] It is also understandable that when the button 11 is located on the side 42 , since no space needs to be reserved on the front 41 for installing a touch device, the screen-to-body ratio of the front 41 of the electronic device can be higher.

[0131] Furthermore, when the front side 41 is located at the front side of the electronic device, the side side may be located at the left side, right side, upper side or lower side of the electronic device, which is not limited in the embodiment of the present application.

[0132] Please continue to refer to Fig.15 , Fig.15 for Fig.13 A schematic diagram of a working state of the electronic device shown is shown. In some embodiments, the front side 41 is further provided with a first indication mark 43 , and the first indication mark 43 is provided corresponding to the button 11 .

[0133] Then, when the button 11 is also located on the front side 41, the first indicator mark 43 may be used to indicate the function of the button 11. When the button 11 is located on the side 42, the first indicator mark 43 may be used to indicate the function and / or position of the button 11, which is not limited in the embodiment of the present application, thereby reducing the probability of the user's accidental touch.

[0134] The first indicator mark 43 may be formed by printing, or may be formed by electroplating or spraying, which is not limited in the embodiment of the present application.

[0135] In some embodiments, the electronic device further includes a display control circuit which is electrically connected to the display screen 500 and the touch device, respectively, and when the pressure sensor 22 detects a pressing operation on the key 11, the display control circuit controls the display screen 500 to display the second indication mark 51, thereby reducing the probability of a user's accidental touch.

[0136] For example, when the user presses the touch device, a corresponding function menu may be called out on the display screen 500 to form the second indication mark 51 , which is not limited in this embodiment of the present application.

[0137] The above are only preferred embodiments of the present application, and are not intended to limit the present application in any form. Although the present application has been disclosed as above with preferred embodiments, it is not intended to limit the present application. Any technical personnel in the field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present application. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A touch device, characterized in that: include: A panel, wherein the panel is provided with buttons; and A circuit board assembly, the circuit board assembly comprising a circuit board and a plurality of pressure sensors, the circuit board is mounted on the panel and arranged directly opposite to the button, and the pressure sensors are all arranged on the circuit board; The number of the pressure sensors is greater than the number of the buttons, and at least one of the pressure sensors is located outside the orthographic projection of the button on the plane where the circuit board is located.

2. The touch control device according to claim 1, characterized in that: The plurality of pressure sensors include: A first pressure sensor, wherein the first pressure sensor is located outside the orthographic projection of the button on the plane where the circuit board is located; and A second pressure sensor, wherein the second pressure sensor at least partially overlaps with an orthographic projection of the button on a plane where the circuit board is located.

3. The touch control device according to claim 2, characterized in that: The number of the keys is at least two, and the first pressure sensor is provided on a side of at least one key facing away from the adjacent key; and / or The number of the buttons is at least two, and the first pressure sensor is arranged between at least two adjacent buttons.

4. The touch control device according to claim 3, characterized in that: At least a plurality of the buttons are arranged along the length direction of the circuit board to form a button group, and the first pressure sensor is provided on each side of the button group along the length direction of the circuit board.

5. The touch control device according to claim 1, wherein: Each of the pressure sensors is located outside the orthographic projection of the button on the plane where the circuit board is located.

6. The touch control device according to claim 5, characterized in that: The number of the button is at least one, and each button is located between two pressure sensors.

7. The touch control device according to claim 6, characterized in that: The number of the buttons is at least two, and the at least two buttons and the plurality of pressure sensors are alternately arranged along the length direction of the circuit board.

8. The touch control device according to any one of claims 1 to 7, characterized in that: The touch control device further includes an adhesive layer, and the adhesive layer is respectively bonded and fixed to the circuit board and the panel.

9. The touch control device according to claim 8, characterized in that: The adhesive layer includes a plurality of adhesive portions, each of which is arranged corresponding to a different pressure sensor, and two adjacent adhesive portions are at least partially separated.

10. The touch control device according to claim 9, characterized in that: The distance between two adjacent bonding portions is greater than or equal to 1 mm; and / or The adhesive portion covers the corresponding pressure sensor in an orthographic projection on the plane where the circuit board is located.

11. The touch control device according to claim 8, characterized in that: The circuit board is provided with a plurality of groups of first grooves, and each group of the first grooves at least partially overlaps with an orthographic projection of one of the pressure sensors on the plane where the circuit board is located; The adhesive layer is provided with a plurality of groups of second grooves, and the orthographic projections of each group of the second grooves and a group of the first grooves on the plane where the circuit board is located at least partially overlap.

12. An electronic device, characterized in that: It comprises the touch control device as claimed in any one of claims 1 to 11.

13. The electronic device according to claim 12, characterized in that: The electronic device further comprises: a housing having a front face and a side face adjacent to the front face; and a display screen, at least partially disposed on the front surface; Wherein, the button is located on the side or the front.

14. The electronic device according to claim 13, characterized in that: The front side is also provided with a first indication mark, and the first indication mark is arranged corresponding to the button.

15. The electronic device according to claim 13, characterized in that: The electronic device further comprises a display control circuit, which is electrically connected to the display screen and the touch control device respectively. When the pressure sensor detects a pressing operation received by the key, the display control circuit controls the display screen to display a second indication mark.

Images