Electronic devices and methods for detecting pressure.

Abstract

This invention discloses an electronic device and a method for detecting pressing pressure. The electronic device includes a screen and a support module. The support module includes a support and a pressure-sensitive unit. The support includes a first arm and a second arm. The first arm has a first electrode portion, and the second arm has a second electrode portion. The first electrode portion can form a first capacitance with a first area of ​​the screen, and the second electrode portion can form a second capacitance with a second area of ​​the screen. The pressure-sensitive unit is disposed on the support. When the screen is pressed, the screen squeezes the first arm and / or the second arm, and the pressure-sensitive unit acquires the deformation of the support. The electronic device determines the first capacitance value between the first electrode portion and the first area of ​​the screen, and determines the second capacitance value between the second electrode portion and the second area of ​​the screen.

Description

Technical Field

[0001] This invention belongs to the field of pressure-sensitive technology for electronic products, specifically relating to an electronic device and a method for detecting pressure. Background Technology

[0002] Screen pressure-sensitive technology uses pressure sensors added to the screen surface to detect the pressure of a user's finger, resulting in more accurate, natural, and sensitive touch. Currently, to achieve full-screen pressure sensitivity, existing technologies typically divide the screen into an upper and lower half, with each half using a separate under-screen pressure-sensitive module. While the two modules operate independently, they often interfere with each other, frequently overlapping the pressure-sensing area of ​​the upper half with the lower half, leading to inconvenience and a poor user experience. Furthermore, the current setup requires two separate pressure-sensing modules for each half, resulting in significant space requirements and high costs. Summary of the Invention

[0003] The present invention aims to provide an electronic device and a method for detecting pressure, which can at least solve the problems of large space occupation and high cost caused by the need to set two pressure sensors in the prior art.

[0004] To solve the above-mentioned technical problems, the present invention is implemented as follows:

[0005] In a first aspect, embodiments of the present invention provide an electronic device, including a screen and a support module. The support module includes: a support and a pressure-sensitive unit. The support includes a first arm and a second arm. The first arm has a first electrode portion, and the second arm has a second electrode portion. The first electrode portion can form a first capacitance with a first area of ​​the screen, and the second electrode portion can form a second capacitance with a second area of ​​the screen. The pressure-sensitive unit is disposed on the support. When the screen is pressed, the screen compresses the first arm and / or the second arm, and the pressure-sensitive unit acquires the deformation of the support.

[0006] The electronic device determines a first capacitance value between the first electrode portion and a first area of ​​the screen, and determines a second capacitance value between the second electrode portion and a second area of ​​the screen.

[0007] In this embodiment of the invention, by respectively setting a first electrode portion and a second electrode portion on the first and second arms of the bracket, a first capacitor is formed between the first electrode portion and a first area of ​​the screen, and a second capacitor is formed between the second electrode portion and a second area of ​​the screen. When the screen is pressed, the screen can squeeze the first and / or second arms, and the capacitance values ​​of the first and second capacitors change. The electronic device can determine the capacitance values ​​between the first and second electrode portions and the first and second areas of the screen, respectively, to determine the distance between the first and second electrode portions and the screen. Simultaneously, based on the pressure-sensitive unit set on the bracket, the deformation of the bracket can be obtained, and finally, the pressing force value of the screen can be obtained, realizing force feedback of the electronic device. The electronic device of the present invention can obtain the pressing force value of the screen corresponding to the first and second arms by setting a single pressure-sensitive unit, resulting in a simpler overall structure, smaller footprint, and lower cost.

[0008] Secondly, a method for detecting pressure is provided, applied to the electronic device described in the above embodiments, comprising:

[0009] Obtain the deformation, first capacitance value, and second capacitance value of the pressure-sensitive unit;

[0010] The pressing state is determined based on the first capacitance value and the second capacitance value;

[0011] When the pressing state involves pressing the first region and the second region with different pressures, the first pressure value for pressing the first region and the second pressure value for pressing the second region are determined based on the first capacitance value, the second capacitance value, and the deformation.

[0012] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0013] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0014] Figure 1 This is a schematic diagram of the structure of an electronic device according to an embodiment of the present invention;

[0015] Figure 2 This is a schematic diagram of a single-handed pressing of an electronic device according to an embodiment of the present invention;

[0016] Figure 3 This is a schematic diagram of two-hand pressing of an electronic device according to an embodiment of the present invention;

[0017] Figure 4This is another schematic diagram of two-hand pressing of an electronic device according to an embodiment of the present invention;

[0018] Figure 5 This is a simplified model diagram of the deformation of the support body of an electronic device according to an embodiment of the present invention.

[0019] Figure label:

[0020] 10; first arm 11; second arm 12; first electrode part 13; second electrode part 14; support body 15;

[0021] Pressure-sensitive unit 20;

[0022] Circuit board 30;

[0023] Main structure 40;

[0024] Screen 50; First area 51; Second area 52. Detailed Implementation

[0025] Embodiments of the present invention will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0026] In the specification and claims of this invention, the terms "first" and "second" may explicitly or implicitly include one or more of those features. In the description of this invention, unless otherwise stated, "a plurality of" means two or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0027] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0028] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0029] The electronic device provided in the embodiments of the present invention will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0030] See Figure 1 The electronic device according to an embodiment of the present invention includes a screen 50 and a bracket module.

[0031] Specifically, the support module includes a support 10 and a pressure-sensitive unit 20. The support 10 includes a first arm 11 and a second arm 12. The first arm 11 has a first electrode portion 13, and the second arm 12 has a second electrode portion 14. The first electrode portion 13 can form a first capacitance with a first region 51 of the screen 50. The second electrode portion 14 can form a second capacitance with a second region 52 of the screen 50. The pressure-sensitive unit 20 is disposed on the support 10. When the screen 50 is pressed, the screen 50 squeezes the first arm 11 and / or the second arm 12, and the pressure-sensitive unit 20 detects the deformation of the support 10. The electronic device determines the first capacitance value between the first electrode portion 13 and the first region 51 of the screen, and determines the second capacitance value between the second electrode portion 14 and the second region of the screen. In other words, as... Figure 1 As shown, the electronic device according to an embodiment of the present invention mainly consists of a screen 50 and a support module. The support module includes a support 10 and a pressure-sensitive unit 20. The support 10 includes a first arm 11 and a second arm 12. A first electrode portion 13 is disposed on the first arm 11, and a second electrode portion 14 is disposed on the second arm 12. A predetermined gap is left between the first arm 11 and the screen 50, allowing the first electrode portion 13 on the first arm 11 to form a first capacitor with a first region 51 of the screen 50. A predetermined gap is left between the second electrode portion 14 on the second arm 12 and the screen 50, allowing the second electrode portion 14 on the second arm 12 to form a second capacitor with a second region 52 of the screen 50. The first capacitance value and the second capacitance value change according to the change in the distance between the first electrode portion 13 and the second electrode portion 14 and the screen 50, respectively. The first capacitance value and the second capacitance value can be used as detection parameters for the pressure applied by the electronic device.

[0032] See Figures 2 to 4The screen 50 has a first region 51 and a second region 52, where the first region 51 can serve as the upper screen and the second region 52 can serve as the lower screen. The first electrode part 13 corresponds to the upper screen, and the second electrode part 14 corresponds to the lower screen. The first arm 11 and the second arm 12 of the bracket 10 can correspond to the upper screen and the lower screen respectively. At the same time, by setting a pressure-sensitive unit 20 on the bracket 10, the pressure sensitivity of the upper screen and the lower screen can be detected simultaneously, without the problem of interference between the upper and lower screens.

[0033] It should be noted that the first region 51 and the second region 52 of the screen 50 are two different regions of the screen 50. The first region 51 of the screen 50 can be used as the upper screen region, and the second region 52 of the screen 50 can be used as the lower screen region. The first region 51 and the second region 52 of the screen 50 can be divided according to the system of the electronic device, or they can be mechanically divided during the manufacturing process of the electronic device. In this invention, the area of ​​the first region 51 and the second region 52 can be the same or different, as long as the first region 51 can correspond to the first support arm 11 and the second region 52 can correspond to the second support arm 12, and the design that ensures the pressing requirement of the screen 50 falls within the protection scope of this invention.

[0034] Since there is a predetermined gap between the first electrode portion 13 and the second electrode portion 14 and the screen 50 when the screen 50 is not deformed, it is not necessary to attach the bracket module to the screen 50, thus saving adhesive costs. Furthermore, since the bracket module and the screen 50 do not need to be attached for a long time, the power required to activate the adhesive circuit by cold pressing the bracket module is not needed, which can optimize the top imprinting problem of the screen 50 and prevent wrinkles from appearing on the screen 50.

[0035] The pressure-sensitive unit 20 is mounted on the bracket 10. When the first arm 11 or the second arm 12 is pressed by the screen 50, the screen 50 deforms, causing a change in the actual capacitance values ​​of the first and second capacitors. Simultaneously, the bracket 10 can deform under the action of the screen 50 (see simplified model diagram of bracket 10 deformation). Figure 5 When the bracket 10 deforms, the pressure-sensitive unit 20 can detect the deformation of the bracket 10, and the pressure-sensitive resistor of the pressure-sensitive unit 20 changes, generating a corresponding voltage signal. The pressing force of the screen 50 on the first arm 11 and the second arm 12 can be obtained through the capacitance values ​​of the first capacitor and the second capacitor, the voltage change value of the pressure-sensitive unit 20, and the deformation of the bracket 10.

[0036] The electronic device of the present invention can obtain the pressing force value of the screen 50 corresponding to the first arm 11 and the second arm 12 by setting a pressure-sensitive unit 20. The overall structure is simpler, occupies less space, and has a lower cost.

[0037] In this invention, the electronic device can be a mobile phone, computer, or other electronic product. In practical application, when a user touches the screen 50 with a force of 0g, the first capacitance formed by the first electrode portion 13 and the screen 50, and the capacitance formed by the second electrode portion 14 and the screen 50, have the same value. At this time, both the first capacitance value of the first capacitor and the second capacitance value of the second capacitor are 100pF, indicating that the first electrode portion 13 and the second electrode portion 14 are at the same distance from the screen 50.

[0038] See Figure 2 When a user touches the screen 50 with one hand, the screen 50 deforms, allowing it to contact the first electrode portion 13 on the first support arm 11. This deformation of the screen 50 also causes the support 10 to deform and move. At this time, the first capacitance value of the first capacitor increases to its maximum (e.g., 200 pF). Due to the deformation and movement of the support 10, the distance between the second electrode portion 14 and the screen 50 increases, causing the second capacitance value of the second capacitor to decrease (e.g., 80 pF). The pressure-sensitive unit 20 can output a voltage signal based on the change in resistance of the support 10 after deformation. Simultaneously, the pressure-sensitive unit 20 can detect the amount of deformation of the support 10. Based on the voltage value and deformation amount obtained by the pressure-sensitive unit 20, the force applied by the user's single-handed press can be determined.

[0039] Similarly, when a user touches the screen 50 with one hand, the screen 50 deforms and contacts the second electrode portion 14 on the second arm 12, which is similar to the case where it contacts the first electrode portion 13 on the first arm 11. This will not be described in detail in this invention.

[0040] See Figure 3 When a user touches the screen 50 with both hands and applies different pressures to it, for example, when the screen 50 contacts the first electrode 13 on the first arm 11 while not contacting the second electrode 14 on the second arm 12, the screen 50 deforms, causing the bracket 10 to deform and move. The first capacitance value of the first capacitor increases to its maximum, and the first electrode 13 acquires this first capacitance value. Similarly, when the screen 50 applies force to the corresponding area of ​​the second arm 12, it also deforms, causing a change in the capacitance value of the second capacitor on both the second arm 12 and the screen 50. This change is then acquired by the second electrode 14. The pressure-sensitive unit 20 can detect the deformation of the bracket 10. Based on the voltage value and deformation acquired by the pressure-sensitive unit 20, the user's pressure on the first arm 11 can be determined. The pressure on the second arm 12 can be calculated based on the pressure on the first arm 11, the actual measured capacitance value of the second capacitor, and the initial capacitance value of the second capacitor when no force is applied to the screen 50.

[0041] Similarly, when a user touches the screen 50 with both hands and applies different pressures to the screen 50, the screen 50 contacts the second electrode portion 14 on the second arm 12. The situation where the screen 50 does not contact the first electrode portion 13 on the first arm 11 is similar to the situation where the screen 50 contacts the first electrode portion 13 on the first arm 11 but does not contact the second electrode portion 14 on the second arm 12, and will not be described in detail in this invention.

[0042] See Figure 4 When a user touches the screen 50 with both hands, and the screen 50 applies the same force to the first arm 11 and the second arm 12, the force applied by both hands to the screen 50 can be obtained from the voltage and deformation obtained by the pressure-sensitive unit 20.

[0043] Therefore, in the electronic device according to the embodiment of the present invention, by respectively providing a first electrode portion 13 and a second electrode portion 14 on the first arm 11 and the second arm 12 of the bracket 10, a first capacitor is formed between the first electrode portion 13 and the first area 51 of the screen 50 of the electronic device, and a second capacitor is formed between the second electrode portion 14 and the second area 52 of the screen 50 of the electronic device. When the screen 50 is deformed by touching it, the capacitance values ​​of the first capacitor and the second capacitor change, and the distances between the first electrode portion 13 and the second electrode portion 14 and the screen 50 can be determined. At the same time, according to the pressure-sensitive unit 20 provided on the bracket 10, the deformation amount of the bracket 10 can be obtained, and finally the pressing force value of the screen 50 can be obtained, thus realizing force feedback of the electronic device. The electronic device of the present invention can obtain the pressing force value of the screen 50 corresponding to the first arm 11 and the second arm 12 by providing a single pressure-sensitive unit 20, resulting in a simpler overall structure, smaller footprint, and lower cost.

[0044] According to one embodiment of the present invention, the bracket 10 includes a bracket body 15, which is connected to an electronic device;

[0045] The first arm 11 and the second arm 12 are respectively connected to the bracket body 15. The first arm 11 extends to the position corresponding to the first area 51 of the screen 50, and the second arm 12 extends to the position corresponding to the second area 52 of the screen 50. The first arm 11 and the second arm 12 are symmetrically distributed.

[0046] In other words, see Figure 2The bracket 10 includes a bracket body 15, and a pressure-sensitive unit 20 is disposed on the bracket body 15. The bracket body 15 is connected to an electronic device; for example, one end of the bracket body 15 can be fixed to the main structure 40 of the electronic device. A first arm 11 and a second arm 12 are respectively connected to the bracket body 15. The first arm 11 and the second arm 12 extend in different directions. The first arm 11 can extend to the position corresponding to the first area 51 of the screen 50, and the second arm 12 can extend to the position corresponding to the second area 52 of the screen 50, ensuring that the first arm 11 and the second arm 12 can respectively correspond to two different areas of the screen 50. By setting a pressure-sensitive unit 20, pressure sensitivity detection of different areas of the screen 50 is realized, reducing the space occupied by the bracket module and lowering the cost.

[0047] See Figure 1 The first arm 11 and the second arm 12 can be symmetrically distributed. By symmetrically setting the first arm 11 and the second arm 12, it is ensured that in the initial state (when no force is applied to the screen 50), the distances from the first electrode part 13 and the second electrode part 14 to the screen 50 are equal, and when the user presses the screen 50 with both hands, the first arm 11 and the second arm 12 have corresponding displacements, which is beneficial to improving the subsequent detection accuracy.

[0048] According to one embodiment of the present invention, a first electrode portion 13 is disposed at the end of the first support arm 11 near the screen 50. A second electrode portion 14 is disposed at the end of the second support arm 12 near the screen 50.

[0049] In other words, such as Figure 2 As shown, the first electrode portion 13 can be disposed at the end of the first support arm 11 near the screen 50. The first electrode portion 13 faces the screen 50. The second electrode portion 14 can be disposed at the end of the second support arm 12 near the screen 50, and the second electrode portion 14 faces the screen 50. When the user touches the screen 50 with one or both hands, the screen 50 deforms and can contact the first electrode portion 13 and / or the second electrode portion 14, causing a change in the capacitance of the first electrode portion 13 and the second electrode portion 14. Simultaneously, during the deformation process of the bracket 10, see... Figure 5 When the resistance of the pressure-sensitive unit 20 changes, the deformation of the bracket 10 is detected. An electrical signal is obtained based on the detected resistance change. At the same time, combined with the detected deformation of the bracket 10, the force exerted on the touch screen 50 can be obtained, thus realizing force feedback of the electronic device.

[0050] Specifically, see Figure 2A downward force F is applied to the screen 50, causing the screen 50 to displace downwards. This displacement causes the pressure-sensitive arms (support 10) to also displace downwards. Based on the deformation law of the arm beams (support 10) and the Wheatstone bridge principle, the screen 50 receives an electrical signal upon contact with the first electrode portion 13 or the second electrode portion 14. Since the force exerted by the arm beam pressure sensor on the screen 50 is very small, its influence on the screen's mechanical properties can be ignored. The first arm 11 and the second arm 12 have the same displacement as the support 10. When the screen 50 deforms under force, the pressure-sensitive unit 20 can detect the displacement of the first electrode portion 13 and the second electrode portion 14. Of course, the structure and principle of the Wheatstone bridge are understandable and achievable by those skilled in the art, and will not be described in detail here.

[0051] According to the present invention, the force applied to the screen 50 can be calculated based on the output signal and displacement of the pressure-sensitive unit 20.

[0052] When the screen 50 contacts the first electrode 13, the pressure-sensitive unit 20 outputs a signal in the same way as the above formula, which will not be repeated in this invention.

[0053] According to one embodiment of the present invention, the end of the first arm 11 near the screen 50 is polarized to form a first electrode portion 13. The end of the second arm 12 near the screen 50 is polarized to form a second electrode portion 14.

[0054] In other words, such as Figures 1 to 4 As shown, the end of the first arm 11 near the screen 50 can be polarized to form a first electrode portion 13. The end of the second arm 12 near the screen 50 can be polarized to form a second electrode portion 14. Capacitance detection is performed through the first electrode portion 13 and the second electrode portion 14 to detect the first capacitance value and the second capacitance value of the first capacitor formed between the screen 50 and the first electrode portion 13 and the second electrode portion 14. Based on the first capacitance value and the second capacitance value, the distance from the first electrode portion 13 and the second electrode portion 14 to the screen 50 can be determined, which is used as a detection parameter for the pressing force of the electronic device. The pressure-sensitive unit 20 can be etched and formed on the bracket 10. The bracket 10 is divided into two parts: a conductive part and a wiring part, which realizes the electrical connection between the first electrode portion 13, the second electrode portion 14, and the pressure-sensitive unit 20 and the external control chip.

[0055] In this invention, the bracket 10 can be made of steel sheet, which has a certain degree of flexibility. When the user presses the screen 50, the bracket 10 is driven to deform and displace during the deformation of the screen 50, so that the pressure-sensitive unit 20 can obtain the voltage value and deformation amount and obtain the pressing force of the screen 50.

[0056] In this invention, the bracket body 15 can be made of steel sheet or other structures, the circuit board 30 can be attached to the bracket body 15, and the pressure-sensitive unit 20 can be set on the bracket body 15, so that the pressure-sensitive unit 20 can detect the deformation of the bracket 10 and the change of the pressure-sensitive resistance of the pressure-sensitive unit 20 after the bracket 10 is deformed, effectively improving the reliability and detection accuracy of the bracket module.

[0057] In this invention, the pressure-sensitive unit 20 can be directly fabricated on the support 10 using etching or other molding processes. Forming the pressure-sensitive unit 20 on the support 10 further improves the reliability and detection accuracy of the support module. The first arm 11 and the second arm 12 can be made of semiconductor material, which facilitates the polarization formation of the first electrode portion 13 and the second electrode portion 14 on the first arm 11 and the second arm 12, thereby improving the accuracy of capacitance detection of the first electrode portion 13 and the second electrode portion 14.

[0058] According to one embodiment of the present invention, the electronic device further includes a circuit board 30, which is disposed on the bracket 10. The circuit board 30 is electrically connected to the first electrode portion 13 and the second electrode portion 14, and the pressure-sensitive unit 20 is electrically connected to the circuit board 30.

[0059] In other words, the electronic device also includes a circuit board 30, which is mounted on the bracket 10. The circuit board 30 is used to collect signals from electrodes and pressure-sensitive units 20, and then route them to the controller. The circuit board 30 is electrically connected to the first electrode section 13 and the second electrode section 14, and the capacitance values ​​detected by the first electrode section 13 and the second electrode section 14 can be transmitted to the control chip via the circuit board 30. The pressure-sensitive unit 20 is electrically connected to the circuit board 30, and the voltage values ​​detected by the pressure-sensitive unit 20 and the deformation of the bracket 10 can be transmitted to the control chip via the circuit board 30, providing pressure feedback for the touch screen 50.

[0060] According to one embodiment of the present invention, see Figure 1 Electronic devices, including the main structure 40.

[0061] Specifically, the screen 50 is mounted on the main structure 40, the bracket module is mounted inside the main structure 40, and the bracket 10 is connected to the main structure 40.

[0062] In other words, such as Figure 1As shown, the electronic device also includes a main body structure 40, wherein a screen 50 is disposed on the main body structure 40, a bracket module is connected within the main body structure 40, and a bracket 10 is connected to the main body structure 40. A first electrode portion 13 on the first arm 11 forms a first capacitor with a first region 51 of the screen 50, and a second electrode portion 14 on the second arm 12 forms a second capacitor with a second region 52 of the screen 50. By fixing the bracket 10 within the main body structure 40, and ensuring that there is a gap between the first electrode portion 13 and the second electrode portion 14 and the screen 50 when the screen 50 is not deformed, there is no need to attach the bracket module to the screen 50, saving adhesive costs, simplifying disassembly, and facilitating subsequent maintenance and replacement. Furthermore, since the bracket module and the screen 50 do not need to be attached for extended periods, the power required to activate the adhesive circuit by cold pressing the bracket module is eliminated, thus optimizing the top-printing problem of the screen 50 and preventing wrinkles.

[0063] When the screen 50 is deformed by pressure, the screen 50 can contact the first arm 11 or the second arm 12. When the user presses the screen 50 with a force of 0g, the first capacitance formed by the first electrode part 13 and the screen 50 and the capacitance formed by the second electrode part 14 and the screen 50 have the same value. For example, at this time, the capacitance value of the first capacitor and the capacitance value of the second capacitor are both 100pF, indicating that the first electrode part 13 and the second electrode part 14 are at the same distance from the screen 50.

[0064] like Figure 2 As shown, when a user touches the screen 50 with one hand, the screen 50 deforms, making contact with the first electrode portion 13 on the first arm 11. This deformation of the screen 50 also causes the support 10 to deform and move. At this time, the capacitance of the first capacitor increases to its maximum (e.g., 200 pF). Due to the deformation and movement of the support 10, the distance between the second electrode portion 14 and the screen 50 increases, causing the capacitance of the second capacitor to decrease (e.g., 80 pF). The pressure-sensitive unit 20 can output a voltage signal based on the change in resistance of the support 10 after deformation. Simultaneously, the pressure-sensitive unit 20 can detect the amount of deformation of the support 10. Based on the voltage value and deformation amount obtained by the pressure-sensitive unit 20, the force applied by the user's single-handed press can be determined. Similarly, when a user touches the screen 50 with one hand, the screen 50 deforms and contacts the second electrode portion 14 on the second arm 12, similar to the situation where it contacts the first electrode portion 13 on the first arm 11. This will not be described in detail in this invention.

[0065] like Figure 3As shown, when a user touches the screen 50 with both hands, and the screen 50 contacts the first electrode portion 13 on the first arm 11, the screen 50 deforms, causing the bracket 10 to deform and move. The capacitance value of the first capacitor increases to its maximum, the first electrode portion 13 acquires the capacitance value of the first capacitor, and the second electrode portion 14 acquires the capacitance value of the second capacitor. The pressure-sensitive unit 20 can detect the amount of deformation of the bracket 10. Based on the voltage value and deformation acquired by the pressure-sensitive unit 20, the force exerted by the user's single hand on the first arm 11 can be obtained. The pressing force of the second arm 12 can be obtained based on the force of the first arm 11, the actual measured capacitance value of the second capacitor, and the initial capacitance value of the second capacitor when the screen 50 applies force. Similarly, the situation when the user touches the screen 50 with both hands, and the screen 50 contacts the second electrode portion 14 on the second arm 12, is similar to the situation when it contacts the first electrode portion 13 on the first arm 11, and will not be described in detail in this invention.

[0066] The electronic device of the present invention can obtain the pressing force value of the screen 50 corresponding to the first arm 11 and the second arm 12 by setting a pressure-sensitive unit 20. The overall structure is simpler, occupies less space, and has a lower cost, which facilitates the miniaturization design of electronic devices.

[0067] According to one embodiment of the present invention, at least a portion of the bracket body 15 extends at an angle relative to the screen 50. The angled design of the bracket body 15 ensures that the first arm 11 and the second arm 12 can undergo better deformation under the pressure of the screen 50, while ensuring that the first arm 11 and the second arm 12 have the same deformation, thereby improving the detection accuracy.

[0068] According to one embodiment of the present invention, the electronic device further includes a first vibrating element and a second vibrating element, wherein the first vibrating element corresponds to the first region 51 and the second vibrating element corresponds to the second region 52.

[0069] In other words, the electronic device also includes a first vibrating element and a second vibrating element, wherein the first vibrating element corresponds to the first region 51 and the second vibrating element corresponds to the second region 52. The first and second vibrating elements can be motors. In this invention, in a single-handed pressing scenario, the position of the screen 50 can be identified by the touch screen reporting point, thereby distinguishing between the upper and lower screens. Since the deformation of the screen 50 is localized, touching a certain position on the upper half of the screen (e.g., the pressing point in the first region 51 on the screen 50) will not affect a certain position on the lower half of the screen (e.g., the pressing point in the second region 52 on the screen 50), because the second electrode portion 14 of the second arm 12 also moves downwards along with the deformation of the first arm 11. When the screen 50 reports a touch at the pressing point in the first region 51, the upper screen motor vibrates. When the screen 50 reports a touch at the pressing point in the second region 52, the lower screen motor vibrates. The vibration sensation is determined by the pressure applied.

[0070] See Figure 3 and Figure 4 Based on the application of this bracket module in electronic devices, this paper explains how to use the components of this bracket module to obtain the pressure values ​​at different positions in the scenario where "different positions of the screen 50 are subjected to different pressure intensities".

[0071] For example, the touch screen 50 of the electronic device will report the press points on the first area 51 and the second area 52, and the bracket module will obtain the capacitance values ​​of the first capacitor Ca and the second capacitor Cb.

[0072] Before practical application, such as during the testing phase or factory configuration, the true values ​​of the first capacitor, the second capacitor, and the corresponding pressing conditions are recorded into the electronic device. The method for testing the true capacitance value is as follows:

[0073] Step 1: Record the Ca0 and Cb0 values ​​of the screen when it is not deformed, for example, Ca0 = Cb0 = 100pf.

[0074] It should be noted that the first region 51 and the second region 52 of the screen 50 have multiple pressure settings under different pressing pressures. When the corresponding pressure setting is applied to the first region 51 and the second region 52, the capacitance values ​​of the first capacitor Ca detected by the first electrode 13 at the first region 51 and the second capacitor Cb detected by the second electrode 14 at the second region are different. Furthermore, the capacitance values ​​of the first capacitor Ca detected by the first electrode 13 at the first region 51 and the second capacitor Cb detected by the second electrode 14 at the second region have a truth table correspondence under different pressing pressures.

[0075] Taking pressing the first area 51 as an example, it can be roughly divided into six levels. When the pressing force at the first area 51 is 0g, it is in the first level. At this time, it indicates that no force is applied to the first area 51 and the second area 52, the capacitance value Ca of the first capacitor is 100pf, and the capacitance value Cb of the second capacitor is 100pf. When the pressing force at the first area 51 is 200g, the first area 51 contacts the first electrode part 13, and the first electrode part 13 detects the maximum first capacitance value Ca of 200pf. The bracket 10 deforms downward under the pressing force, the distance between the second electrode part 14 and the second area 52 of the screen 50 increases, the second capacitance value detected by the second electrode part 14 decreases (the second capacitance value Cb is 80pf), and as the pressing force at the first area 51 continues to increase, the first area 51 always contacts the first electrode part 13, and the first capacitance value Ca remains unchanged at 200pf. As the deformation of the bracket 10 continues to increase, the distance between the second electrode part 14 and the second region 52 of the screen 50 gradually increases, and the second capacitance value detected by the second electrode part 14 gradually decreases.

[0076] Step 2: Press 200g in the first area 51, and do not press in the second area 52. The results show that Ca is 200pf and Cb is 80pf.

[0077] Step 3: Increase the pressure level and obtain Ca and Cb at each level.

[0078] Finally, the truth table obtained is shown in Table 1:

[0079] Table 1:

[0080] 0g 100pf 100pf 200g 200pf 80pf 300g 200pf 60pf 400g 200pf 40pf 500g 200pf 20pf

[0081] In practical applications, the pressure-sensitive unit 20 acquires the deformation of the support 10. The electronic device, based on the electrical signal output by the pressure-sensitive unit 20, can calculate the pressure corresponding to this deformation. Furthermore, by comparing the actual acquired first capacitor Ca and second capacitor Cb with the aforementioned truth table, it can be determined that the capacitor Ca reaching its maximum value of 200pF represents a larger pressure in the corresponding area, equal to the actual pressure acquired from the signal from the pressure-sensitive unit 20. For example, if the first capacitor Ca reaches 200pF, the pressure in the first area 51 is larger, equal to the actual pressure. Then, by comparing the second capacitor Cb with the truth table, the relationship between the actual second capacitor Cb and the second capacitor at the corresponding pressure level in the truth table can be obtained, thereby deducing the pressure received in the second area 52.

[0082] The specific steps are as follows:

[0083] Step 1: Record the Ca0 and Cb0 values ​​of the screen when it is not deformed, for example, Ca0 = Cb0 = 100pf.

[0084] Step 2: After recording the deformation at 51 locations in the first area of ​​the actual pressing scenario, determine the magnitude of the first capacitance value Ca and the second capacitance value Cb.

[0085] Step 3: If the pressing pressure at the first area 51 is greater than the pressing pressure at the second area 52, and the first capacitor Ca is greater than the second capacitor Cb, then the first area 51 is closer to the bracket module. The pressure-sensitive unit 20 obtains the signal quantity Fa collected at the first area 51. The upper screen corresponding to the first area 51 uses the corresponding gear Fa to make the linear motor vibrate, for example, Fa = 300g gear.

[0086] Step 4: Given Fa = 300g, according to the truth table, the capacitance value Cb0 of the undeformed second area 52 of screen 50 is 60pF. Calculate the pressing force after the second area 52 of screen 50 is deformed. The second capacitance value Cb1 is the capacitance value generated by the deformation of screen 50 and bracket 10 at this moment. If Cb1 = 80pF, we can use the formula Fb = Fa * (Cb1 - Cb0) / Cb0 = 100g, then the lower screen corresponding to the second area 52 will use the corresponding setting of Fb to make the linear motor vibrate.

[0087] It should be noted that the above formula for calculating Fb is a linear extrapolation based on the capacitance ratio. Of course, in this invention, Fb can also be calculated using other fitted functions based on the capacitance. These will not be elaborated upon in detail here.

[0088] Similarly, see Figure 4 In scenarios where both hands apply the same pressure, the touchscreen 50 simultaneously reports the pressure points of the first area 51 and the second area 52, while the support module collects the capacitance values ​​of Ca and Cb. If Ca = Cb, and the scenario involves the same pressure, the support module detects the pressure intensity and adjusts the linear motor vibration accordingly.

[0089] In summary, the electronic device of the present invention, by employing this bracket module, can obtain the pressing force values ​​of the screen 50 corresponding to the first arm 11 and the second arm 12 through a single pressure-sensitive unit 20. This results in a simpler overall structure, smaller footprint, and lower cost. Furthermore, by fixing the bracket 10 within the main structure 40, and with a gap between the first electrode portion 13 and the second electrode portion 14 and the screen 50 when the screen 50 is not deformed, the bracket module does not need to be adhered to the screen 50, saving adhesive costs, simplifying disassembly, and facilitating subsequent maintenance and replacement. Moreover, since the bracket module and screen 50 do not need to be adhered for extended periods, the power required to activate the adhesive circuit through cold pressing of the bracket module is eliminated, optimizing the top-printing problem of the screen 50 and preventing wrinkles.

[0090] Of course, other structures and working principles of electronic devices are understandable and achievable by those skilled in the art, and will not be described in detail in this invention.

[0091] According to a second aspect of the present invention, a method for detecting pressure is provided, applied to the electronic device described above, the method comprising:

[0092] Obtain the deformation, first capacitance value, and second capacitance value of the pressure-sensitive unit 20;

[0093] The pressing state is determined based on the first capacitance value and the second capacitance value;

[0094] When pressing the first region 51 and the second region 52 with different pressures, the first pressure value for pressing the first region 51 and the second pressure value for pressing the second region 52 are determined based on the first capacitance value, the second capacitance value, and the deformation.

[0095] In other words, see Figures 1 to 4 In the detection method of the present invention, firstly, the deformation, first capacitance value Ca, and second capacitance value Cb of the pressure-sensitive unit 20 can be acquired. During the acquisition of these values, the pressing position information can be obtained first. This pressing position information can be obtained through touchscreen reporting on the screen 50. The first capacitance value Ca and the second capacitance value Cb can be obtained through the first electrode portion 13 on the first arm 11 and the second electrode portion 14 on the second arm 12, respectively. The deformation of the bracket 10 can be obtained through the pressure-sensitive unit 20. Then, based on the pressing position information, the first capacitance value Ca, and the second capacitance value Cb, the pressing state can be determined, and it can be determined whether the screen 50 is in contact with the first electrode portion 13 and / or the second electrode portion 14. Finally, when the pressing state involves pressing the first region 51 and the second region 52 with different pressures, the first pressure value for pressing the first region 51 and the second pressure value for pressing the second region 52 can be determined based on the pressing position information, the first capacitance value, the second capacitance value, and the deformation.

[0096] In this invention, see Figure 3 Based on the first capacitance value, the second capacitance value, and the deformation, the first pressure value for pressing the first region 51 and the second pressure value for pressing the second region 52 are determined, including:

[0097] When the first capacitance value Ca is greater than the second capacitance value Cb, the first pressure value of the first region 51 is determined to correspond to the deformation. At this time, the screen 50 contacts the first electrode portion 13 on the first support arm 11. After the screen 50 deforms, it causes the bracket 10 to deform and move. The capacitance value of the first capacitor increases to its maximum, and the first electrode portion 13 acquires the capacitance value Ca of the first capacitor. The second electrode portion 14 acquires the capacitance value Cb of the second capacitor. The pressure-sensitive unit 20 can detect the deformation amount of the bracket 10 and determine the first pressure value based on the deformation. Finally, based on the first pressure value, the first capacitance value Ca, and the second capacitance value Cb, the second pressure value of the second region 52 is determined.

[0098] In this invention, determining the first pressure value for pressing the first region 51 and the second pressure value for pressing the second region 52 based on the first capacitance value, the second capacitance value, and the deformation includes:

[0099] When the first capacitance value Ca is less than the second capacitance value Cb, the second pressure value of the second region 52 is determined to correspond to the deformation. At this time, the screen 50 contacts the second electrode portion 14 on the second support arm 12. After the screen 50 deforms, it causes the bracket 10 to deform and move. The capacitance value Cb of the second capacitor increases to its maximum, and the second electrode portion 14 acquires the capacitance value Cb of the second capacitor. The first electrode portion 13 acquires the capacitance value Ca of the first capacitor. The pressure-sensitive unit 20 can detect the deformation amount of the bracket 10 and determine the second pressure value based on the deformation. Finally, the first pressure value of the first region 51 is determined based on the second pressure value, the second capacitance value Cb, and the first capacitance value Ca.

[0100] According to one embodiment of the present invention, the detection method further includes: controlling the vibration of a first region 51 according to a first pressure value, and controlling the vibration of a second region 52 according to a second pressure value.

[0101] In this invention, see Figure 2 In one-handed pressing scenarios, the position of screen 50 can be identified by touch point reporting on screen 50, thus distinguishing between the upper and lower screens. Since the deformation of screen 50 is localized, touching a certain position on the upper screen (e.g., the pressing point in the first area 51 of screen 50) will not affect a certain position on the lower screen (e.g., the pressing point in the second area 52 of screen 50), because the second electrode portion 14 of the second arm 12 also moves downwards along with the deformation of the first arm 11. If screen 50 reports a touch at the pressing point in the first area 51, the upper screen motor vibrates. If screen 50 reports a touch at the pressing point in the second area 52, the lower screen motor vibrates. The vibration sensation is determined by the pressure applied.

[0102] The detection method of the present invention can obtain the pressing pressure value of the screen 50 corresponding to the first arm 11 and the second arm 12 through a pressure-sensitive unit 20. The detection method is simple, highly accurate, and does not have the problem of interference between the two areas of the screen 50.

[0103] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0104] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An electronic device, characterized in that, Including the screen and stand module, The support module includes a support and a pressure-sensitive unit; The bracket includes a first arm and a second arm. The first arm is provided with a first electrode portion, and the second arm is provided with a second electrode portion. The first electrode portion can form a first capacitance with a first area of ​​the screen, and the second electrode portion can form a second capacitance with a second area of ​​the screen. A pressure-sensitive unit, wherein the pressure-sensitive unit is mounted on the bracket; When the screen is pressed, the screen squeezes the first support arm and / or the second support arm, and the pressure-sensitive unit obtains the deformation of the support. The electronic device determines a first capacitance value between the first electrode portion and a first area of ​​the screen, and determines a second capacitance value between the second electrode portion and a second area of ​​the screen.

2. The electronic device according to claim 1, characterized in that, The bracket includes a bracket body, which is connected to the electronic device; The first arm and the second arm are respectively connected to the bracket body. The first arm extends to a position corresponding to the first area of ​​the screen, and the second arm extends to a position corresponding to the second area of ​​the screen. The first arm and the second arm are symmetrically distributed.

3. The electronic device according to claim 2, characterized in that, The first electrode portion is disposed at the end of the first support arm near the screen; The second electrode is disposed at the end of the second arm near the screen.

4. The electronic device according to claim 3, characterized in that, The end of the first arm near the screen is polarized to form the first electrode portion; The end of the second arm near the screen is polarized to form the second electrode portion.

5. The electronic device according to claim 1, characterized in that, Also includes: A circuit board, which is mounted on the bracket; The circuit board is electrically connected to the first electrode section and the second electrode section, and the pressure-sensitive unit is electrically connected to the circuit board.

6. The electronic device according to claim 1, characterized in that, include: The main structure includes a screen mounted on the main structure and a bracket module disposed within the main structure, with the bracket connected to the main structure.

7. The electronic device according to claim 1, characterized in that, Also includes: A first vibrating element and a second vibrating element, wherein the first vibrating element corresponds to a first area of ​​the screen and the second vibrating element corresponds to a second area of ​​the screen.

8. The electronic device according to claim 2, characterized in that, At least a portion of the bracket body extends at an angle relative to the screen.

9. A method for detecting pressure, characterized in that, An electronic device as described in any one of claims 1-8, comprising: Obtain the deformation, first capacitance value, and second capacitance value of the pressure-sensitive unit; The pressing state is determined based on the first capacitance value and the second capacitance value; When the first capacitance value is greater than the second capacitance value, the first pressure value of the first region is determined to correspond to the deformation. The first pressure value is determined based on the deformation. The second pressure value of the second region is determined according to the formula Fb=Fa*(Cb1-Cb0) / Cb0, where Fb is the second pressure value of the second region, Fa is the first pressure value of the first region, Cb1 is the second capacitance value generated by screen deformation and bracket deformation, and Cb0 is the second capacitance value of the second region without deformation corresponding to the pressure value of the first region obtained from the truth table.

10. The method for detecting pressing pressure according to claim 9, characterized in that, When the first capacitance value is equal to the second capacitance value, it is determined that the pressing pressure of the first region and the second region is the same, and the pressing pressure is detected by the bracket module.

11. The method for detecting pressing pressure according to claim 9, characterized in that, Also includes: The vibration of the first region is controlled based on the first pressure value, and the vibration of the second region is controlled based on the second pressure value.

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