A key structure and key module

Abstract

The present application provides a key structure and a key module, comprising: a base layer; two support structures, the two support structures are arranged on the base layer at intervals; a first elastic film layer, which covers the two support structures and is connected to the two support structures, and the two support structures and the first elastic film layer define a clearance space on the base layer; an upper electrode, which is arranged on the lower surface of the first elastic film layer and is located in the clearance space; a lower electrode, which is arranged on the base layer and is located in the clearance space; a variable resistor elastomer, which is arranged on the lower surface of the upper electrode or the upper surface of the lower electrode and is located in the clearance space; the variable resistor elastomer is used to connect the upper electrode with the lower electrode when the first elastic film layer is elastically deformed in the direction of the lower electrode, so as to generate a first key signal related to the elastic deformation amount of the variable resistor elastomer.

Description

Technical Field

[0001] The present application relates to the technical field of key structure design, and in particular to a key structure and a key module. Background Art

[0002] The keys of existing gaming keyboards generally trigger signals through metal domes in the form of thin film resistors, relays or capacitors, and usually have only two states, open and closed, and cannot reflect the force changes in the gaming keyboard keys during different levels of operation in the game. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a key structure and a key module to solve the problem that the keys of current game keyboards have only two states, open and closed, and cannot reflect the force change process of different degrees of operation in the game on the game keyboard keys.

[0004] In a first aspect, an embodiment of the present invention provides a key structure, comprising: a base layer; two supporting structures, the two supporting structures being arranged on the base layer at intervals; a first elastic film layer, the first elastic film layer covering the two supporting structures and connected to the two supporting structures, the two supporting structures and the first elastic film layer defining a clearance space on the base layer; an upper electrode, which is arranged on the lower surface of the first elastic film layer and located in the clearance space; a lower electrode, which is arranged on the base layer and located in the clearance space; a variable resistor elastomer, which is arranged on the lower surface of the upper electrode or the upper surface of the lower electrode and located in the clearance space; the variable resistor elastomer is used to connect the upper electrode with the lower electrode when the first elastic film layer is elastically deformed toward the lower electrode, so as to generate a first key signal related to the elastic deformation amount of the variable resistor elastomer.

[0005] In the key structure designed above, an upper electrode is arranged on the lower surface of the first elastic film layer, and a lower electrode and a variable resistor elastomer are arranged on the upper surface of the base layer. When the first elastic film layer is bent, the upper electrode will move downward with the first elastic film layer, thereby exerting pressure on the variable resistor elastomer. After being subjected to pressure, the variable resistor elastomer will change from an insulator to a conductor, thereby causing the upper electrode and the lower electrode to be conductive, and its resistance value is related to the pressure it is subjected to or its own deformation. Therefore, on the premise of realizing the two states of key opening and closing, different degrees of operation in the game can be reflected as the force change process of the game keyboard key, thereby realizing continuous pressure change adjustment of the game key, thereby improving the user's control over the degree of pressing during the game and improving the gaming experience.

[0006] In an optional embodiment of the first aspect, the lower electrode includes a first lower electrode and a second lower electrode arranged at an interval, the first lower electrode and the second lower electrode are opposite to the upper electrode, and the variable resistor elastomer is arranged on the second lower electrode; the first lower electrode is used to contact the upper electrode when the first elastic film layer undergoes elastic deformation inward to generate a second key signal; the second lower electrode is used to contact the upper electrode through the variable resistor elastomer when the first elastic film layer undergoes elastic deformation to generate a first key signal related to the elastic deformation amount of the variable resistor elastomer.

[0007] In the implementation mode of the above design, the opening and closing function of the ordinary keyboard can be realized through the upper electrode and the first lower electrode, and the pressure change adjustment function during the game mentioned above can be realized through the upper electrode, the variable resistor elastomer and the second lower electrode 502. The ordinary keyboard and the game keyboard can be integrated, thereby solving the common situation that the ordinary keyboard and the game keyboard are designed separately under normal circumstances, and saving users the cost of purchasing two keyboards and the tediousness of changing the keyboard in the game and normal state.

[0008] In an optional implementation of the first aspect, the upper electrode includes a first upper electrode and a second upper electrode that are spaced apart from each other, the first upper electrode and the first lower electrode are opposite to each other, and the second upper electrode and the second lower electrode are opposite to each other.

[0009] In an optional implementation of the first aspect, the thickness of the first upper electrode is greater than that of the second upper electrode or the thickness of the first lower electrode is greater than that of the second lower electrode.

[0010] In an optional implementation of the first aspect, the second lower electrode is arranged around the first lower electrode.

[0011] In an optional embodiment of the first aspect, the upper electrode includes a first upper electrode and a second upper electrode arranged at an interval, the lower electrode includes a first lower electrode and a second lower electrode arranged at an interval, the first upper electrode and the first lower electrode are opposite to each other, the second upper electrode and the second lower electrode are opposite to each other, and the variable resistor elastomer is arranged on the first upper electrode; the first lower electrode is used to contact the first upper electrode through the variable resistor elastomer when the first elastic film layer undergoes elastic deformation inward, so as to generate a first key signal related to the elastic deformation amount of the variable resistor elastomer; the second lower electrode is used to contact the second upper electrode when the first elastic film layer undergoes elastic deformation inward, so as to generate a second key signal.

[0012] In an optional implementation of the first aspect, the thickness of the second upper electrode is greater than that of the first upper electrode or the thickness of the second lower electrode is greater than that of the first lower electrode.

[0013] In an optional embodiment of the first aspect, the lower electrode includes a first lower electrode and at least two second lower electrodes, the at least two second lower electrodes are arranged on the first elastic film layer at intervals, each of the second lower electrodes is provided with a variable resistor elastomer, the number of the variable resistor elastomers is the same as the number of the second lower electrodes, and the first lower electrode covers each variable resistor elastomer and is opposite to the upper electrode.

[0014] In an optional embodiment of the first aspect, the base layer includes a base and a second elastic film layer, the second elastic film layer is arranged on the base, the two supporting structures are arranged at intervals on the second elastic film layer, and the two supporting structures and the first elastic film layer define the clearance space on the second elastic film layer.

[0015] In an optional embodiment of the first aspect, the button structure also includes a pressing mechanism, which includes an elastic pressing portion, an elastic abutting portion and two elastic supporting portions; the upper ends of the two elastic supporting portions are connected to the lower surface of the elastic pressing portion at intervals, and the lower ends of the two elastic supporting portions are respectively arranged on the first elastic film layer and are respectively opposite to the two supporting structures; the elastic abutting portion is arranged on the lower surface of the elastic pressing portion and is located between the two elastic supporting portions, and the elastic abutting portion is opposite to the clearance space for squeezing the first elastic film layer to deform toward the direction of the lower electrode.

[0016] In an optional implementation of the first aspect, the lower surface of the elastic abutting portion is in the shape of a smooth curved surface.

[0017] In a second aspect, an embodiment of the present invention provides a key module, comprising a key structure as described in any one of the aforementioned embodiments and a key signal generating circuit, wherein the key signal generating circuit is electrically connected to the upper electrode and the lower electrode of the key structure, respectively, so as to generate a first key signal related to the elastic deformation of the variable resistor elastomer when the upper electrode is connected to the lower electrode through the variable resistor elastomer.

[0018] In the key module designed as above, an upper electrode is arranged on the lower surface of the first elastic film layer, and a lower electrode and a variable resistor elastomer are arranged on the upper surface of the base layer. When the first elastic film layer is bent, the upper electrode will move downward with the first elastic film layer, thereby exerting pressure on the variable resistor elastomer. After being subjected to pressure, the variable resistor elastomer will change from an insulator to a conductor, thereby causing the upper electrode and the lower electrode to be conductive, and its resistance value is related to the pressure it is subjected to or its own deformation. Therefore, on the premise of realizing the two states of key opening and closing, different degrees of operation in the game can be reflected as the force change process of the game keyboard key, thereby realizing continuous pressure change adjustment of the game key, thereby improving the user's control over the degree of pressing during the game and improving the gaming experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A first schematic diagram of a key structure provided in the first embodiment of the present application;

[0021] Figure 2 A second schematic diagram of the key structure provided in the first embodiment of the present application;

[0022] Figure 3 A third schematic diagram of the key structure provided in the first embodiment of the present application;

[0023] Figure 4 A fourth schematic diagram of the key structure provided in the first embodiment of the present application;

[0024] Figure 5 A fifth schematic diagram of the key structure provided in the first embodiment of the present application;

[0025] Figure 6 A sixth schematic diagram of the key structure provided in the first embodiment of the present application;

[0026] Figure 7 A seventh schematic diagram of a key structure provided in the first embodiment of the present application;

[0027] Figure 8 An eighth schematic diagram of the key structure provided in the first embodiment of the present application;

[0028] Fig. 9 A ninth schematic diagram of a key structure provided in the first embodiment of the present application;

[0029] Fig.10 A first schematic diagram of a button module provided in the second embodiment of the present application;

[0030] Fig.11 A second schematic diagram of a button module provided in the second embodiment of the present application;

[0031] Fig.12 A third schematic diagram of a button module provided in the second embodiment of the present application;

[0032] Fig.13 This is a fourth schematic diagram of the button module provided in the second embodiment of the present application.

[0033] Icon: 10-base layer; 101-base; 102-second elastic film layer; 20-support structure; 30-first elastic film layer; 40-upper electrode; 401-first upper electrode; 402-second upper electrode; 50-lower electrode; 501-first lower electrode; 502-second lower electrode; 60-variable resistor elastomer; 70-make way space; 80-pressing mechanism; 801-elastic pressing part; 802-elastic abutting part; 803-elastic supporting part; 200-key signal generating circuit. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0035] First embodiment

[0036] like Figure 1 and Figure 2 As shown, the embodiment of the present application provides a key structure, which includes a base layer 10, two supporting structures 20, a first elastic film layer 30, an upper electrode 40, a lower electrode 50 and a variable resistor elastic body 60, the two supporting structures 20 are arranged on the base layer 10 at intervals, the first elastic film layer 30 covers the top of the two supporting structures 20 and is connected to the two supporting structures 20, the two supporting structures 20 and the first elastic film layer 30 define a clearance space 70 on the base layer 10, the upper electrode 40 is arranged on the lower surface of the first elastic film layer 30 and is located in the clearance space 70, the lower electrode is arranged on the base layer 10 and is located in the clearance space 70, and the variable resistor elastic body 60 is arranged on the lower surface of the upper electrode (as shown in FIG. Figure 2 ) or disposed on the upper surface of the lower electrode (such as Figure 1 ) and is located within the clearance space 70.

[0037] The material of the variable resistor elastomer 60 is a carbon-based polymer material, such as graphene or quantum tunneling composite material (Quantum Tunnelling Composite, QTC). The variable resistor elastomer 60 of the above material is an insulator under normal conditions, that is, when it is not subjected to external extrusion force; the variable resistor elastomer 60 changes its own particle spacing and distribution when subjected to external extrusion force, and then changes into a conductor, and the resistance value of the variable resistor elastomer 60 is inversely correlated with the pressure received, that is, the greater the extrusion force received, the smaller the resistance value. Taking the aforementioned quantum tunneling composite material as an example, the principle of its conductivity is the field-induced quantum tunneling effect phenomenon. In the QTC composite material, the metal particles are very densely distributed in the matrix, but there is no contact between them. When pressed or deformed, the distance between the metal particles is reduced to the point that electrons can be transferred between the metal particles, thereby having conductivity.

[0038] On the basis of the above description, when the key structure designed in the present solution is pressed by the user, that is, when the first elastic film layer 30 is pressed, the first elastic film layer 30 will bend, and the upper electrode 40 arranged on the lower surface of the first elastic film layer 30 will bend and move downward as the first elastic film layer 30 is bent. As the upper electrode 40 moves downward, the upper electrode 40 will squeeze the variable resistor elastomer 60. The variable resistor elastomer 60 changes into a conductor after being squeezed, and then the upper electrode 40 and the lower electrode 50 are connected to realize the on-off switching of the switch. At the same time, since the magnitude of the pressure in the above process is a continuously changing process, the resistance of the variable resistor elastomer 60 will also change accordingly, and then a first key signal can be generated. The first key signal is related to the elastic deformation of the variable resistor elastomer 60, and then the force change process reflected in the game keyboard key by different degrees of operation in the game can be realized.

[0039] Taking the different degrees of operation in the game, such as the degree of force in the game fighting, as an example, the force change reflected in the game keyboard is that the degree of force applied by the user on the keyboard can be transmitted to the game, thereby mastering the degree of force applied by the character in the game fighting, for example, the greater the degree of force applied by the user on the keyboard, the greater the degree of force applied by the game character in the game fighting, etc. In the key structure designed above, when the user's key force changes, the resistance of the variable resistor elastic body 60 will change accordingly, thereby generating a first key signal related to the deformation amount of the variable resistor elastic body 60, that is, the resistance value, that is, the first key signal can change according to the different resistance values, and then when the game-related processing is performed later according to the first key signal, the change in the degree of force applied in the game can be realized, and the degree of force applied by the character in the game fighting can be changed.

[0040] In the key structure designed above, an upper electrode is arranged on the lower surface of the first elastic film layer, and a lower electrode and a variable resistor elastomer are arranged on the upper surface of the base layer. When the first elastic film layer is bent, the upper electrode will move downward with the first elastic film layer, thereby exerting pressure on the variable resistor elastomer. After being subjected to pressure, the variable resistor elastomer will change from an insulator to a conductor, thereby causing the upper electrode and the lower electrode to be conductive, and its resistance value is related to the pressure it is subjected to or its own deformation. Therefore, on the premise of realizing the two states of key opening and closing, different degrees of operation in the game can be reflected as the force change process of the game keyboard key, thereby realizing continuous pressure change adjustment of the game key, thereby improving the user's control over the degree of pressing during the game and improving the gaming experience.

[0041] In an optional implementation of this embodiment, if Figure 3 As shown, the lower electrode 50 includes a first lower electrode 501 and a second lower electrode 502 that are spaced apart. The first lower electrode 501 and the second lower electrode 502 are both opposite to the upper electrode 40 , and the variable resistor elastic body 60 is disposed on the second lower electrode 502 .

[0042] In the key structure designed as above, when used, the first elastic film layer 30 is bent, and the upper electrode 40 moves downward, and the upper electrode 40 contacts the first lower electrode 501. After the contact, the upper electrode 40 and the first lower electrode 501 are connected and a second key signal can be generated; at the same time, the upper electrode 40 will also generate a force on the variable resistor elastomer 60 arranged on the second lower electrode 502, and the variable resistor elastomer 60 will change from an insulator to a conductor. The principle is consistent with the above description. At this time, the upper electrode 40 and the second lower electrode 502 are also connected and a first key signal related to the deformation of the variable resistor elastomer 60 is generated. In this way, the opening and closing function of an ordinary keyboard can be realized through the upper electrode 40 and the first lower electrode 501, and the pressure change adjustment function during the game mentioned above can be realized through the upper electrode 40, the variable resistor elastomer 60 and the second lower electrode 502. Therefore, the key structure designed in this embodiment can integrate the ordinary keyboard and the game keyboard, thereby solving the common situation that the ordinary keyboard and the game keyboard are designed separately under normal circumstances, and saving users the cost of purchasing two keyboards and the tediousness of changing the keyboard in game and normal states.

[0043] In the above-mentioned key structure, a switching button for normal function and game function can be designed on the fusion keyboard. When switching to the normal function, only the second key signal generated by the upper electrode 40 and the first lower electrode 501 can be received; when switching to the game function, only the first key signal generated by the upper electrode 40 and the second lower electrode 502 can be received.

[0044] In an optional implementation of this embodiment, if Figure 4 As shown, the upper electrode 40 may include a first upper electrode 401 and a second upper electrode 402 that are spaced apart from each other. The first upper electrode 401 is opposite to the first lower electrode 501 , and the second upper electrode 402 is opposite to the second lower electrode 502 .

[0045] The key structure designed in the above embodiment, when in use, the first upper electrode 401 and the second upper electrode 402 will move downward when the first elastic film layer 30 is bent, causing the first upper electrode 401 to contact and conduct with the first lower electrode 501, thereby generating a second key signal, and the second upper electrode 402 exerts a force on the variable resistor elastomer 60, thereby conducting with the second lower electrode 502, thereby generating a first key signal related to the deformation of the variable resistor elastomer 60.

[0046] In the implementation of the above design, the upper electrode and the lower electrode are respectively set to two, one pair of upper and lower electrodes generates a first key signal, and the other pair of upper and lower electrodes generates a second key signal, so that the contact between the upper electrode and the lower electrode is more accurate, avoiding the problem of poor contact between one upper electrode and multiple lower electrodes.

[0047] In an optional implementation manner of the present embodiment, the thickness of the first upper electrode 401 is greater than that of the second upper electrode 402 or the thickness of the first lower electrode 501 is greater than that of the second lower electrode 502. Since the variable resistor elastomer 60 is provided on the second lower electrode 502 and the variable resistor elastomer 60 has a certain thickness, the thickness of the first upper electrode 401 can be designed to be thicker than that of the second upper electrode 402 or the thickness of the first lower electrode 501 can be designed to be thicker than that of the second lower electrode 502. This can effectively avoid the problem that when the second upper electrode 402 contacts the variable resistor elastomer 60, the first upper electrode 401 does not contact the first lower electrode 501 due to the thickness of the variable resistor elastomer 60.

[0048] In an optional implementation of this embodiment, if Figure 5 As shown, the second lower electrode 502 is arranged around the first lower electrode 501. Figure 3 In addition to the first lower electrode 501 and the second lower electrode 502 being arranged at intervals on the left and right as shown, the lower electrodes can also be designed into a circular ring shape, and the second lower electrode 502 can be arranged around the first lower electrode 501. At this time, the variable resistor elastomer 60 can also be designed into the same circular ring shape as the second lower electrode 502, and then be arranged on the second lower electrode 502.

[0049] In an optional implementation of this embodiment, if Figure 6 As shown, in addition to the above Figure 4 In addition to the variable resistor elastic body 60 being disposed on the second lower electrode 502 as shown, the variable resistor elastic body 60 can also be disposed on the first upper electrode 401. When the variable resistor elastic body 60 is disposed on the first upper electrode 401, the thickness of the second upper electrode 402 can be designed to be greater than the thickness of the first upper electrode 401, or the thickness of the second lower electrode 502 can be designed to be greater than the thickness of the first lower electrode 501 to avoid poor contact caused by the thickness of the variable resistor elastic body 60. Of course, the variable resistor elastic body 60 can also be disposed on the second upper electrode 402 or the first lower electrode 501.

[0050] In an optional implementation manner of this embodiment, in addition to the structure described above, the lower electrode 50 may also be as follows: Figure 7 The first lower electrode 501 and at least two second lower electrodes 502 are shown, and the at least two second lower electrodes 502 are arranged on the base layer 10 at intervals. A variable resistor elastomer 60 is arranged on each second lower electrode 502, and the number of the variable resistor elastomers 60 is the same as the number of the second lower electrodes 502. The first lower electrode 501 covers each variable resistor elastomer 60 and is opposite to the upper electrode 40.

[0051] In the key structure designed as above, when in use, the upper electrode 40 moves downward as the first elastic film layer 30 is flexed, and then contacts the first lower electrode 501 to generate a corresponding second key signal and squeeze the first lower electrode 501. Since the first lower electrode 501 covers the variable resistor elastomer 60 and the second lower electrode 502, the first lower electrode 501 squeezes the variable resistor elastomer 60 on each second lower electrode 502, and the variable resistor elastomer changes from an insulator to a conductor, thereby causing the upper electrode 40, the first lower electrode 501 and the second lower electrode 502 to be turned on, thereby triggering the generation of a first key signal related to the deformation of the variable resistor elastomer 60.

[0052] In an optional implementation of this embodiment, if Figure 8 As shown, the base layer 10 includes a base 101 and a second elastic film layer 102, the second elastic film layer 102 is arranged on the base 101, two support structures 20 are arranged on the second elastic film layer 102 at intervals, and the two support structures 20 and the first elastic film layer 30 define the clearance space 70 on the second elastic film layer 102. The materials of the first elastic film layer 30 and the second elastic film layer 102 can be polyimide or polyester resin, etc., which can be deformed downward when pressed. In addition, it should be noted that when the base layer 10 has only one layer, the base layer 10 is an insulating material.

[0053] In an optional implementation of this embodiment, if Fig. 9 As shown, the button structure also includes a pressing mechanism 80, which includes an elastic pressing portion 801, an elastic abutting portion 802 and two elastic supporting portions 803, the upper ends of the two elastic supporting portions 803 are spaced and connected to the lower surface of the elastic pressing portion 801, and the lower ends of the two elastic supporting portions 803 are respectively arranged on the first elastic film layer 30 and are respectively opposite to the two supporting structures 20; the elastic abutting portion 802 is arranged on the lower surface of the elastic pressing portion 801 and is located between the two elastic supporting portions 803, and the elastic abutting portion 802 is opposite to the clearance space 70. When in use, the user can press the elastic pressing part 801 of the pressing mechanism 80, and the two elastic supporting parts 803 are elastically deformed and contracted by the force, and the elastic contact part 802 disposed on the lower surface of the elastic pressing part 801 and opposite to the clearance space 70 approaches the first elastic film layer 30, thereby generating a force on the first elastic film layer 30, so that the first elastic film layer 30 is deformed toward the lower electrode. The length of the elastic supporting part 803 and the height of the elastic contact part 802 can be set accordingly according to actual conditions.

[0054] In an optional implementation manner of this embodiment, the lower surface of the elastic abutting portion 802 is in a smooth curved shape, and the material of the elastic pressing portion 801 , the elastic abutting portion 802 and the two elastic supporting portions 803 may be rubber.

[0055] In an optional implementation manner of the present embodiment, the pressing mechanism 80 may be other structures in addition to the structure mentioned above, and it only needs to be able to exert a force on the first elastic film layer when pressed by the user. For example, the elastic support portion 803 may be a rebound structure with a spring, which drives the abutment portion to move downward after the pressing portion is subjected to pressure, and rebounds to its original shape after the pressure is removed; the structure of the elastic abutment portion 802 may also not be a smooth curved surface, but may be a cone, etc.

[0056] In an optional implementation manner of the present embodiment, the two supporting structures 20 mentioned above may be two separate supporting members, such as rubber, or may be a colloid used to fix the first elastic film layer 30 and the base layer 10 together, and then a glue layer is formed based on the connected colloid to support the first elastic film layer 30 and space it a certain distance from the base layer 10, thereby forming the clearance space 70.

[0057] Second embodiment

[0058] like Fig.10As shown, the present application provides a key module, which includes the key structure described in the first embodiment and a key signal generating circuit 200. The key signal generating circuit 200 can be electrically connected to the upper electrode 40 and the lower electrode 50 of the key structure to generate a first key signal related to the elastic deformation of the variable resistor elastomer when the upper electrode is connected to the lower electrode through the variable resistor elastomer.

[0059] Based on the first embodiment, the key signal generating circuit 200 and the lower electrode 50 can be connected as follows: Fig.11 As shown, the key signal generating circuit 200 is electrically connected to the first lower electrode 501 and the second lower electrode 502 respectively, so as to generate the second key signal when the upper electrode 40 is connected to the first lower electrode 501 in the preset first mode; and generate the first key signal when the upper electrode 40 is connected to the second lower electrode 502 through the variable resistor elastic body 60 in the preset second mode. Fig.12 As shown, the key signal generating circuit 200 is electrically connected to the first upper electrode 401, the second upper electrode 402, the first lower electrode 501 and the second lower electrode 502 of the key structure respectively, so as to generate the second key signal when the second upper electrode 402 is connected to the second lower electrode 502 in the preset first mode; and generate the second key signal when the first upper electrode 401 is connected to the first lower electrode 501 through the variable resistor elastic body 60 in the preset second mode. Or as Fig.13 As shown, the key signal generating circuit 200 is electrically connected to the upper electrode 40, the first lower electrode 501 and each second lower electrode 502 of the key structure, so as to generate the second key signal when the upper electrode 40 is connected to the first lower electrode 501 in the preset first mode; and generate the first key signal when the upper electrode 40 is connected to the corresponding second lower electrode 502 through the variable resistor elastic body 60 corresponding to each second lower electrode 502 in the preset second mode. The preset first mode can be a normal mode, and the preset second mode can be a game mode. The switching between the normal mode and the game mode can be switched by a set key.

[0060] In the key module designed as above, an upper electrode 40 is arranged on the lower surface of the first elastic film layer 30, and a lower electrode 50 and a variable resistor elastomer 60 are arranged on the upper surface of the base layer 10. When the first elastic film layer 30 is bent, the upper electrode 40 moves downward along with the first elastic film layer 30, thereby applying pressure to the variable resistor elastomer 60. After being subjected to pressure, the variable resistor elastomer 60 changes from an insulator to a conductor, thereby causing the upper electrode 40 and the lower electrode 50 to be conductive, and its resistance value is related to the pressure or its own deformation. Under the premise of realizing the two states of key opening and closing, different degrees of operation in the game can be reflected as the force change process of the game keyboard key, thereby realizing continuous pressure change adjustment of the game key, thereby improving the user's control over the degree of pressing during the game, and improving the gaming experience.

[0061] In the embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of the devices or units can be electrical, mechanical or other forms.

[0062] In addition, the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0063] In this document, relational terms such as first and second, etc. are used merely to distinguish one entity or operation from another entity or operation, but do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0064] The above description is only an embodiment of the present application and is not intended to limit the protection scope of the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A key structure, characterized in that: include: a basal layer; Two supporting structures, the two supporting structures are arranged on the base layer at intervals; a first elastic film layer, the first elastic film layer covers the two supporting structures and is connected to the two supporting structures, the two supporting structures and the first elastic film layer define a clearance space on the base layer; an upper electrode disposed on the lower surface of the first elastic film layer and located in the clearance space; a lower electrode disposed on the base layer and located in the clearance space; a variable resistor elastic body, which is arranged on the lower surface of the upper electrode or the upper surface of the lower electrode and is located in the clearance space; The variable resistor elastic body is used to connect the upper electrode with the lower electrode when the first elastic film layer is elastically deformed toward the lower electrode, so as to generate a first key signal related to the elastic deformation amount of the variable resistor elastic body; The lower electrode includes a first lower electrode and at least two second lower electrodes, the at least two second lower electrodes are arranged on the base layer at intervals, each of the second lower electrodes is provided with a variable resistor elastomer, the number of the variable resistor elastomers is the same as the number of the second lower electrodes, the first lower electrode covers each variable resistor elastomer and is opposite to the upper electrode; the button structure also includes a pressing mechanism, the pressing mechanism includes an elastic pressing portion, an elastic abutting portion and two elastic supporting portions.

2. The key structure according to claim 1, characterized in that: The upper electrode includes a first upper electrode and a second upper electrode arranged at an interval, the lower electrode includes a first lower electrode and a second lower electrode arranged at an interval, the first upper electrode and the first lower electrode are opposite to each other, the second upper electrode and the second lower electrode are opposite to each other, and the variable resistor elastic body is arranged on the first upper electrode; The first lower electrode is used to contact the first upper electrode through the variable resistor elastic body when the first elastic film layer is elastically deformed inwardly, so as to generate a first key signal related to the elastic deformation amount of the variable resistor elastic body; The second lower electrode is used to contact the second upper electrode when the first elastic film layer undergoes elastic deformation inwards, so as to generate a second key signal.

3. The key structure according to claim 2, characterized in that: The second upper electrode is thicker than the first upper electrode or the second lower electrode is thicker than the first lower electrode.

4. The key structure according to claim 1, characterized in that: The upper ends of the two elastic support parts are connected to the lower surface of the elastic pressing part at intervals, and the lower ends of the two elastic support parts are respectively arranged on the first elastic film layer and are respectively opposite to the two supporting structures; the elastic abutment part is arranged on the lower surface of the elastic pressing part and is located between the two elastic support parts, and the elastic abutment part is opposite to the clearance space for squeezing the first elastic film layer to deform toward the direction of the lower electrode.

5. A key module, characterized in that: It comprises the key structure as described in any one of claims 1 to 4 and a key signal generating circuit, wherein the key signal generating circuit is electrically connected to the upper electrode and the lower electrode of the key structure respectively, so as to generate a first key signal related to the elastic deformation of the variable resistor elastomer when the upper electrode is connected to the lower electrode through the variable resistor elastomer.

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