Display screen module, electronic device, pressing operation detection method and device

Abstract

The present application provides a display screen module, an electronic device, a method and a device for detecting a pressing operation. The display screen module includes: a display screen, a piezoelectric sensor, an ultrasonic fingerprint module and a control module, wherein the piezoelectric sensor and the ultrasonic fingerprint module are both arranged on the inner side of the display screen, and the piezoelectric sensor and the ultrasonic fingerprint module are arranged at intervals; the control module is electrically connected to the piezoelectric sensor and the ultrasonic fingerprint module respectively; wherein the piezoelectric sensor transmits a first ultrasonic signal, the ultrasonic fingerprint module detects a first signal strength value of the received first ultrasonic signal, and the control chip determines the first pressing operation information based on the first signal strength value. The embodiment of the present application reduces the space occupied by components for detecting pressure in the display screen module.

Description

Technical Field

[0001] The present application relates to the technical field of electronic products, and in particular to a display screen module, an electronic device, and a pressing operation detection method and device. Background Art

[0002] With the development of smart terminals, the application of smart terminals is becoming more and more extensive. Usually, smart terminals have a display screen. In order to increase the screen-to-body ratio, an under-screen fingerprint design is adopted, that is, the ultrasonic fingerprint module is set on the inside of the display screen. At present, in order to realize press detection, a pressure sensor is usually set on the inside of the display screen. Since the pressure sensor needs to be arranged at multiple positions on the inside of the display screen, the space occupied is relatively large. Therefore, in the prior art, there is a problem that the components for detecting pressure occupy a large space. Summary of the invention

[0003] The embodiments of the present application provide a display screen module, an electronic device, and a method and device for detecting a pressing operation to solve the problem that components for detecting pressure occupy a large space.

[0004] In a first aspect, an embodiment of the present application provides a display screen module, comprising: a display screen, a piezoelectric sensor, an ultrasonic fingerprint module and a control module, wherein the piezoelectric sensor and the ultrasonic fingerprint module are both arranged on the inner side of the display screen, and the piezoelectric sensor and the ultrasonic fingerprint module are arranged at intervals; the control module is electrically connected to the piezoelectric sensor and the ultrasonic fingerprint module respectively;

[0005] The piezoelectric sensor transmits a first ultrasonic signal, the ultrasonic fingerprint module detects a first signal strength value of the received first ultrasonic signal, and the control chip determines first pressing operation information based on the first signal strength value.

[0006] In a second aspect, an embodiment of the present application provides an electronic device, comprising the display screen module described in the first aspect.

[0007] In a third aspect, an embodiment of the present application provides a method for detecting a pressing operation, which is applied to the electronic device described in the first aspect, and the method includes:

[0008] Controlling the piezoelectric sensor to transmit a first ultrasonic signal;

[0009] Controlling the ultrasonic fingerprint module to detect a first signal strength of the first ultrasonic signal received;

[0010] First pressing operation information is determined according to the first signal strength.

[0011] In a fourth aspect, an embodiment of the present application provides a pressing operation detection device, which is applied to the electronic device described in the first aspect, and the device includes:

[0012] A first control module, used for controlling the piezoelectric sensor to transmit a first ultrasonic signal;

[0013] A second control module, used for controlling the first signal strength of the first ultrasonic signal received by the ultrasonic fingerprint module detection;

[0014] A determination module is used to determine first pressing operation information according to the first signal strength.

[0015] In a fifth aspect, an embodiment of the present application provides an electronic device, which includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the method described in the third aspect.

[0016] In a sixth aspect, an embodiment of the present application provides a readable storage medium, on which a program or instruction is stored, and when the program or instruction is executed by a processor, the steps of the method described in the third aspect are implemented.

[0017] In a seventh aspect, an embodiment of the present application provides a chip, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the method described in the third aspect.

[0018] In the embodiment of the present application, the display screen module is provided to include: a display screen, a piezoelectric sensor, an ultrasonic fingerprint module and a control module, wherein the piezoelectric sensor and the ultrasonic fingerprint module are both provided on the inner side of the display screen, and the piezoelectric sensor and the ultrasonic fingerprint module are provided at intervals; the control module is electrically connected to the piezoelectric sensor and the ultrasonic fingerprint module respectively; wherein the piezoelectric sensor transmits a first ultrasonic signal, the ultrasonic fingerprint module detects the first signal strength value of the received first ultrasonic signal, and the control chip determines the first pressing operation information based on the first signal strength value. In this way, the pressing detection is realized by the cooperation of the piezoelectric sensor and the ultrasonic fingerprint module, so that the piezoelectric sensor does not need to be set at multiple positions. Therefore, the embodiment of the present application reduces the space occupied by the components for detecting pressure in the display screen module. At the same time, compared with the prior art that multiple pressure detection elements are provided, the embodiment of the present application only needs to add one piezoelectric sensor to realize the pressure detection, thereby reducing the cost. In addition, the conflict between the setting position of the pressure sensor and the ultrasonic fingerprint module can also be avoided.

[0019] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] Figure 1 This is one of the structural diagrams of the display screen module provided in the embodiment of the present application;

[0022] Figure 2 is a diagram of the transmission state of ultrasound when the display screen module provided by the embodiment of the present application is not pressed;

[0023] Figure 3 This is a diagram of the transmission state of ultrasonic waves when the display screen module provided by the embodiment of the present application is pressed;

[0024] Figure 4 is a schematic diagram of a waveform of an ultrasonic wave detected by the first piezoelectric unit when the display screen module provided in an embodiment of the present application is not pressed;

[0025] Figure 5 is a schematic diagram of a state where a display screen module provided in an embodiment of the present application is pressed;

[0026] Figure 6 It is a schematic diagram of the waveform change of the ultrasonic wave detected by the first piezoelectric unit when the display screen module provided in the embodiment of the present application is pressed;

[0027] Figure 7 It is a schematic diagram of the relationship between ultrasonic energy loss and pressing pressure in a display screen module provided in an embodiment of the present application;

[0028] Figure 8 This is the second structural diagram of the display screen module provided in the embodiment of the present application;

[0029] Fig. 9 It is a state diagram of ultrasonic energy loss detected by the first piezoelectric unit corresponding to each display area when the display screen module provided in the embodiment of the present application is pressed;

[0030] Fig.10 It is a state diagram of ultrasonic energy loss detected by the first detection unit corresponding to the pressed area in the display screen module provided in the embodiment of the present application;

[0031] Fig.11 is a flow chart of a pressing operation detection method provided in an embodiment of the present application;

[0032] Fig.12 is a flow chart of a pressing operation detection device provided in an embodiment of the present application;

[0033] Fig.13 It is one of the structural diagrams of the electronic device provided in the embodiment of the present application;

[0034] Fig.14 This is the second structural diagram of the electronic device provided in the embodiment of the present application. DETAILED DESCRIPTION

[0035] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0036] The term "first" or "second" in the specification and claims of the present application may include one or more of the features explicitly or implicitly. In the description of the present invention, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0037] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] See also Figure 1 , Figure 1 Schematic diagram of the structure of the display module provided in the embodiment of the present application. Figure 1 As shown, the display screen module provided in the embodiment of the present application includes: a display screen 10, a piezoelectric sensor 20, an ultrasonic fingerprint module 30 and a control module, wherein the piezoelectric sensor 20 and the ultrasonic fingerprint module 30 are both arranged on the inner side of the display screen 10, and the piezoelectric sensor 20 and the ultrasonic fingerprint module 30 are arranged at intervals; the control module is electrically connected to the piezoelectric sensor 20 and the ultrasonic fingerprint module 30 respectively;

[0040] The piezoelectric sensor 20 transmits a first ultrasonic signal, the ultrasonic fingerprint module 30 detects a first signal strength value of the received first ultrasonic signal, and the control chip determines first pressing operation information based on the first signal strength value.

[0041] In the embodiment of the present application, the display screen 10 can be understood as including multiple layers of media, such as a display layer and a glass layer. The piezoelectric sensor 20 and the ultrasonic fingerprint module 30 are both arranged on the inner side of the display layer. The piezoelectric sensor 20 and the ultrasonic fingerprint module 30 are respectively arranged near the two opposite ends of the display screen 10. Figure 1 As shown, the piezoelectric sensor 20 is disposed near the left end of the display screen 10 , and the ultrasonic fingerprint module 30 is disposed near the right end of the display screen 10 .

[0042] It should be noted that the number of the piezoelectric sensors 20 can be set according to actual needs, such as Figure 1 As shown, in some embodiments, the above-mentioned piezoelectric sensor 20 is one. Of course, in some embodiments, in order to cover more detection areas, two piezoelectric sensors 20 can also be set. In this case, the two piezoelectric sensors 20 are respectively set at two opposite ends of the display screen 10, and the ultrasonic fingerprint module 30 can be set between the two piezoelectric sensors 20.

[0043] Optionally, the piezoelectric sensor 20 and the ultrasonic fingerprint module 30 may be bonded and fixed to the inner side of the display screen 10, such as Figure 2 As shown, when there is no finger pressing the display screen, the transmission path of the ultrasonic wave emitted by the piezoelectric sensor 20 is path 1: passing through the adhesive to the display screen 10, and then passing through the display screen 10 and the adhesive to the ultrasonic fingerprint module 30. At this time, since the outside of the display screen 10 is all air, the difference in acoustic impedance between the air and the display screen is too large, and most of the energy is returned.

[0044] like Figure 3As shown, when a finger presses the display screen, a transmission path 2 is added: through the adhesive to the display screen 10, and then transmitted to the user's finger through the display screen 10. At this time, part of the energy is refracted into the finger, thereby reducing the energy received by the first ultrasonic signal. At the same time, when a finger touches the interface of the display screen, the overall vibration mode is changed, and the contact of the finger is equivalent to a "shock absorption" effect on the entire system, so that the vibration energy transmitted by ultrasound is weakened. Therefore, in the embodiment of the present application, the pressing situation can be detected based on the first signal strength value, so as to determine the first pressing operation information.

[0045] It should be noted that the ultrasonic fingerprint module 30 may include a plurality of piezoelectric units distributed in an array. In order to save power, the first signal strength value of the received first ultrasonic signal may be detected by setting a first piezoelectric unit in the ultrasonic fingerprint module 30. The first piezoelectric unit may be a piezoelectric unit in the ultrasonic fingerprint module 30 or a set of multiple piezoelectric units.

[0046] Optionally, a piezoelectric unit can be selected as the first piezoelectric unit, that is, the piezoelectric unit in the middle of the leftmost side, or the piezoelectric unit in the middle of the rightmost side. Figure 1 As shown, assuming that RX0 is selected as the first piezoelectric unit, when there is no finger pressing the screen, the waveform received by the first piezoelectric unit is as follows Figure 4 As shown. Figure 5 As shown in FIG. 1 , when pressed by a finger, part of the ultrasonic energy is refracted at the finger, and the vibration mode of the entire system changes due to the contact of the finger, resulting in a shock absorption effect. At this time, the waveform received by the first piezoelectric unit is as follows: Figure 6 As shown. Figure 6 In FIG. 1 , the solid line represents the waveform received by the first piezoelectric unit when the finger is not pressed, and the dotted line represents the waveform received by the first piezoelectric unit when the finger is not pressed.

[0047] It should be understood that the energy transmission path of the ultrasonic wave is mainly distributed in the interval between the piezoelectric sensor 20 and the first piezoelectric unit. However, even if the position where the finger presses on the screen exceeds the interval between the piezoelectric sensor 20 and the first piezoelectric unit, the ultrasonic energy will be attenuated to a certain extent. This is mainly because the vibration of the system is weakened after the finger touches the screen. Therefore, the effective press recognition area will be larger than the interval between the piezoelectric sensor 20 and the first piezoelectric unit. Figure 5 As shown in area 501.

[0048] In the embodiment of the present application, the display screen module includes: a display screen 10, a piezoelectric sensor 20, an ultrasonic fingerprint module 30 and a control module, wherein the piezoelectric sensor 20 and the ultrasonic fingerprint module 30 are both arranged on the inner side of the display screen 10, and the piezoelectric sensor 20 and the ultrasonic fingerprint module 30 are arranged at intervals; the control module is electrically connected to the piezoelectric sensor 20 and the ultrasonic fingerprint module 30 respectively; wherein the piezoelectric sensor 20 emits a first ultrasonic signal, the ultrasonic fingerprint module 30 detects the first signal strength value of the received first ultrasonic signal, and the control chip determines the first pressing operation information based on the first signal strength value. In this way, the piezoelectric sensor 20 and the ultrasonic fingerprint module 30 cooperate to realize the pressing detection, so there is no need to set the piezoelectric sensor 20 at multiple positions. Therefore, the embodiment of the present application reduces the space occupied by the components for detecting pressure in the display screen module. At the same time, compared with the prior art setting multiple pressure detection elements, the embodiment of the present application only needs to add one piezoelectric sensor 20 to realize the pressure detection, thereby reducing the cost. In addition, the conflict between the setting position of the pressure sensor and the ultrasonic fingerprint module 30 can also be avoided.

[0049] Optionally, in an embodiment of the present application, the first pressing operation information includes at least one of coordinate information in the second direction and a pressing pressure value.

[0050] It should be understood that as the pressure of the user's finger increases, the contact area between the finger and the display screen 10 increases, and the contact becomes closer, which will cause more ultrasonic energy to be refracted. Therefore, the pressure of the user's finger can be determined according to the attenuation degree of the received energy. Assuming that ΔS represents the attenuation degree of ultrasonic energy under different pressure states, ΔS is positively correlated with pressure, as shown in the following example: Figure 7 shown.

[0051] Alternatively, if Figure 8 As shown, in some embodiments, the display screen 10 includes at least two display areas arranged in sequence along a first direction, and the ultrasonic fingerprint module 30 detection includes a first piezoelectric unit arranged in a one-to-one correspondence with the display area, and the vertical projection of the first piezoelectric unit on the display screen is located in the corresponding display area, wherein the first piezoelectric unit detects a first signal strength value of the received first ultrasonic signal.

[0052] In an embodiment of the present application, the number of the above-mentioned display areas is 3 (display area A, display area B and display area C), wherein each display area is correspondingly provided with a first piezoelectric unit (RX0, RX1 and RX2). The above-mentioned first direction can be understood as the longitudinal direction, that is, the Y-axis direction. Of course, in other embodiments, the first direction can be other directions, such as an inclined direction obliquely upward, etc., which is not further limited here. Since the display screen is divided into multiple display areas, and each display area is provided with a first piezoelectric unit for detecting the first signal strength value of the first ultrasonic signal received, the display area currently pressed by the user's finger can be determined based on the multiple first piezoelectric units, and corresponding different pressing operations are performed according to pressing in different display areas. Therefore, the embodiment of the present application can improve the flexibility of operation control.

[0053] Optionally, in some embodiments, the piezoelectric sensor 20 and the ultrasonic fingerprint module 30 are arranged at intervals along a second direction, and the second direction is perpendicular to the first direction.

[0054] In the embodiment of the present application, the second direction can be understood as the horizontal direction, that is, the X-axis direction. The piezoelectric sensor 20 and the ultrasonic fingerprint module 30 are arranged at intervals along the second direction, which can be understood as the piezoelectric sensor 20 and the ultrasonic fingerprint module 30 are arranged at intervals, and the line connecting the geometric center of the piezoelectric sensor 20 and the geometric center of the ultrasonic fingerprint module 30 is located in the second direction.

[0055] Optionally, in the embodiment of the present application, the area pressed by the finger can be determined based on the difference in energy received by the three first piezoelectric units (RX0, RX1 and RX2), so that the longitudinal coordinate information of the pressing, that is, the coordinate information of the first direction, can be determined. For example, assuming that the energy change value received by the first piezoelectric unit corresponding to a certain display area is greater than the energy change value received by the first piezoelectric units corresponding to other display areas, it can be determined that the display area corresponding to the first piezoelectric unit is the area pressed by the user's finger.

[0056] Assume that the attenuation degree ΔS of the ultrasonic energy detected by the three first piezoelectric units is as follows: Fig. 9 As shown, S 0_A S represents the attenuation degree of the ultrasonic energy emitted by the piezoelectric sensor received by the first piezoelectric unit corresponding to the display area A. 0_B S represents the attenuation degree of the ultrasonic energy emitted by the piezoelectric sensor received by the first piezoelectric unit corresponding to the display area A. 0_C It indicates the attenuation degree of the ultrasonic energy emitted by the piezoelectric sensor received by the first piezoelectric unit corresponding to the display area C. 0_B The value of is the largest, indicating that the display area currently pressed by the user's finger is display area B.

[0057] Optionally, in some embodiments, the ultrasonic fingerprint module 30 also includes a piezoelectric unit group corresponding to the display area 101 one by one, the vertical projection of the piezoelectric unit group on the display screen is located within the corresponding display area, the piezoelectric unit group includes a second piezoelectric unit and a third piezoelectric unit, the second piezoelectric unit is located between the third piezoelectric unit and the piezoelectric sensor, the third piezoelectric unit is used to emit a second ultrasonic signal, the second piezoelectric unit is used to detect a second signal strength value of the received second ultrasonic wave, and the control chip is also used to determine second pressing operation information based on the first signal strength and the second signal strength.

[0058] In the embodiment of the present application, the second piezoelectric unit and the third piezoelectric unit can be a piezoelectric unit or a set of multiple piezoelectric units in the ultrasonic fingerprint module 30. The second piezoelectric unit can be the same piezoelectric unit as the first piezoelectric unit, or can be a different piezoelectric unit. Figure 4 As shown, in the embodiment of the present application, the second piezoelectric unit and the first piezoelectric unit are the same piezoelectric unit as an example for explanation. After the first piezoelectric unit detects the first signal strength of the received first ultrasonic signal, the display area corresponding to the position pressed by the user's finger can be determined based on the first signal strength, and then the third piezoelectric unit corresponding to the display area is controlled to emit a second ultrasonic signal, and the first piezoelectric unit corresponding to the display area detects the second signal strength of the received second ultrasonic signal. At this time, the second pressing operation information can be determined according to the second signal strength and the first signal strength, and the second pressing operation information can include coordinate information in the second direction, that is, horizontal coordinate information.

[0059] It should be noted that, since the distances between the pressing position and the ultrasonic transmitting end are different, the degree of attenuation of the ultrasonic energy is different, and therefore, the horizontal coordinate information can be determined based on the degree of attenuation of the ultrasonic energy. In addition, in order to avoid the influence of the pressing pressure on the calculation of the horizontal coordinate information, the horizontal coordinate information can be determined based on the ratio of the first signal strength to the second signal strength to improve the accuracy of the horizontal coordinate determination.

[0060] Optionally, in some embodiments, a target ratio of the second signal strength to the first signal strength is calculated; based on a preset association relationship, second press operation information corresponding to the target ratio is determined; wherein the preset association relationship is used to represent the association relationship between the ratio information of the second signal strength to the first signal strength and the press operation information, and the second press operation information includes coordinate information in a second direction.

[0061] In the embodiment of the present application, the ratio of the second signal strength to the first signal strength and the horizontal coordinate position can be made into a function correspondence to form the above-mentioned correlation relationship. Since the second press operation information is determined by using the target ratio of the second signal strength to the first signal strength, the area corresponding to the ultrasonic fingerprint module can be used as the press detection area, thereby improving the detection range of the press detection area. Of course, in other embodiments, the first piezoelectric unit can be arranged on the side of the ultrasonic fingerprint module 30 away from the piezoelectric sensor, thereby improving the detection range of the press detection area.

[0062] like Figure 8 As shown, a third piezoelectric unit can be set for each display area, wherein the third piezoelectric unit corresponding to display area A is TX3, the third piezoelectric unit corresponding to display area B is TX2, and the third piezoelectric unit corresponding to display area C is TX1. In the embodiment of the present application, each display area can also be divided into multiple areas in the second direction. When it is detected that the position pressed by the user is in display area B, TX2 corresponding to RX0 can be turned on. At this time, piezoelectric sensor 20 and TX2 simultaneously send waveform signals to RX0. When the position pressed by the finger is between piezoelectric sensor 20 and RX0, S B_0 Greater than S B_2 ,like Fig.10 As shown. Among them, S B_0 Indicates the attenuation degree of the ultrasonic energy emitted by the electrical sensor 20 received by RX0, S B_2 Indicates the attenuation degree of the ultrasonic energy transmitted by TX2 received by RX0.

[0063] It should be noted that, in the embodiment of the present application, the corresponding function can be executed based on the first pressing operation information and the second pressing operation information. For example, the display screen can be divided into four areas according to the coordinate information, where different areas correspond to different functions, and different pressing pressure values ​​can be set to correspond to different functions. Assuming that two pressure levels are set, eight functions of pressing operations can be realized.

[0064] The embodiment of the present application also provides an electronic device, which includes the display screen module in the above embodiment. The structure of the display screen module can refer to the above embodiment and will not be repeated here. Since the electronic device provided by the embodiment of the present application includes the display screen module in the above embodiment, the electronic device provided by the embodiment of the present application has all the beneficial effects of the display screen module in the above embodiment.

[0065] Reference Fig.11 , Fig.11 is a flow chart of a pressing operation detection method provided in an embodiment of the present application. Fig.11 As shown, the following steps are included:

[0066] Step 1101, controlling the piezoelectric sensor to transmit a first ultrasonic signal;

[0067] Step 1102, controlling the ultrasonic fingerprint module to detect a first signal strength of the received first ultrasonic signal;

[0068] Step 1103: Determine first pressing operation information according to the first signal strength.

[0069] In the embodiment of the present application, the first pressing operation information includes at least one of the coordinate information in the first direction and the pressing pressure value. The first direction may be the longitudinal direction. Optionally, the structure of the ultrasonic fingerprint module and the piezoelectric sensor may refer to the above embodiment.

[0070] In some embodiments, the first signal strength of the first ultrasonic signal received can be detected by the first piezoelectric unit in the ultrasonic fingerprint module. If there is one first piezoelectric unit, the first pressing operation information can be the pressing pressure value. In another embodiment, if there are multiple first piezoelectric units, and each corresponds to a display area divided based on the first direction, the first pressing operation information includes at least one of the coordinate information in the first direction and the pressing pressure value.

[0071] The embodiment of the present application controls the piezoelectric sensor to emit a first ultrasonic signal; controls the ultrasonic fingerprint module to detect the first signal strength of the received first ultrasonic signal; and determines the first pressing operation information according to the first signal strength. In this way, the press detection is realized by the cooperation of the piezoelectric sensor and the ultrasonic fingerprint module, so there is no need to set the piezoelectric sensor in multiple positions. Therefore, the embodiment of the present application reduces the space occupied by the components for detecting pressure in the display screen module. At the same time, compared with the prior art that sets multiple pressure detection elements, the embodiment of the present application only needs to add one piezoelectric sensor to realize pressure detection, thereby reducing costs. In addition, the conflict between the setting position of the pressure sensor and the ultrasonic fingerprint module can also be avoided.

[0072] Optionally, in some embodiments, after controlling the ultrasonic fingerprint module to detect the first signal strength of the received first ultrasonic signal, the method further includes:

[0073] Controlling a first target object corresponding to a target display area of ​​the display screen to emit a second ultrasonic signal, wherein the target display area is determined based on the first signal strength, and the first target object is a third piezoelectric unit of the ultrasonic fingerprint module;

[0074] Controlling a second target object corresponding to the target display area to detect a second signal strength of the received second ultrasonic signal, where the second target object is a second piezoelectric unit of the ultrasonic fingerprint module;

[0075] Second pressing operation information is determined according to the second signal strength and the first signal strength.

[0076] In the embodiment of the present application, the second piezoelectric unit and the third piezoelectric unit can be a piezoelectric unit in the ultrasonic fingerprint module or a set of multiple piezoelectric units. The second piezoelectric unit can be the same piezoelectric unit as the first piezoelectric unit, or a different piezoelectric unit. Figure 4 As shown, in the embodiment of the present application, the second piezoelectric unit and the first piezoelectric unit are the same piezoelectric unit as an example for explanation. After the first piezoelectric unit detects the first signal strength of the received first ultrasonic signal, the display area corresponding to the position pressed by the user's finger can be determined based on the first signal strength, and then the third piezoelectric unit corresponding to the display area is controlled to emit a second ultrasonic signal, and the first piezoelectric unit corresponding to the display area detects the second signal strength of the received second ultrasonic signal. At this time, the second pressing operation information can be determined according to the second signal strength and the first signal strength, and the second pressing operation information can include coordinate information in the second direction, that is, horizontal coordinate information.

[0077] It should be noted that, since the distances of the pressing position from the ultrasonic transmitting end are different, the degree of attenuation of the ultrasonic energy is different. Therefore, the horizontal coordinate information can be determined based on the degree of attenuation of the ultrasonic energy. In addition, in order to avoid the influence of the pressing pressure on the calculation of the horizontal coordinate information, the horizontal coordinate information can be determined based on the ratio of the first signal strength and the second signal strength to improve the accuracy of the horizontal coordinate determination. In other words, in the embodiment of the present application, the second pressing operation information is determined based on the second signal strength and the first signal strength, including:

[0078] calculating a target ratio of the second signal strength to the first signal strength;

[0079] Based on a preset association relationship, determining second pressing operation information corresponding to the target ratio;

[0080] The preset association relationship is used to represent the association relationship between the ratio information of the second signal strength and the first signal strength and the pressing operation information, and the second pressing operation information includes coordinate information in the second direction.

[0081] In an embodiment of the present application, a function correspondence can be made between the ratio of the second signal strength to the first signal strength and the horizontal coordinate position to form the above-mentioned correlation relationship. Since the second press operation information is determined by using the target ratio of the second signal strength to the first signal strength, the area corresponding to the ultrasonic fingerprint module can be used as the press detection area, thereby increasing the detection range of the press detection area. Of course, in other embodiments, the first piezoelectric unit can be arranged on the side of the ultrasonic fingerprint module away from the piezoelectric sensor, thereby increasing the detection range of the press detection area.

[0082] It should be noted that, in the embodiment of the present application, the corresponding function can be executed based on the first pressing operation information and the second pressing operation information. For example, the display screen can be divided into four areas according to the coordinate information, where different areas correspond to different functions, and different pressing pressure values ​​can be set to correspond to different functions. Assuming that two pressure levels are set, eight functions of pressing operations can be realized.

[0083] It should be noted that the execution subject of the press operation detection method provided in the embodiment of the present application may be a press operation detection device, or a control module in the press operation detection device for executing the loading press operation detection method. In the embodiment of the present application, the press operation detection method provided in the embodiment of the present application is explained by taking the press operation detection device executing the loading press operation detection method as an example.

[0084] See also Fig.12 , Fig.12 1 is a structural diagram of a pressing operation detection device provided in an embodiment of the present application. The pressing operation detection device 1200 is applied to the electronic device in the above embodiment, such as Fig.12 As shown, the pressing operation detection device 1200 includes:

[0085] The first control module 1201 is used to control the piezoelectric sensor to transmit a first ultrasonic signal;

[0086] The second control module 1202 is used to control the ultrasonic fingerprint module to detect the first signal strength of the first ultrasonic signal received;

[0087] The determination module 1203 is configured to determine first pressing operation information according to the first signal strength.

[0088] Optionally, the first pressing operation information includes at least one of coordinate information in a first direction and a pressing pressure value.

[0089] Optionally, the first control module 1201 is further used to control a first target object corresponding to a target display area of ​​the display screen to emit a second ultrasonic signal, the target display area is determined based on the first signal strength, and the first target object is a third piezoelectric unit of the ultrasonic fingerprint module;

[0090] The second control module 1202 is also used to control the second target object corresponding to the target display area to detect the second signal strength of the received second ultrasonic signal, and the second target object is the second piezoelectric unit of the ultrasonic fingerprint module;

[0091] The determining module 1203 is further configured to determine second pressing operation information according to the second signal strength and the first signal strength.

[0092] Optionally, the determining module 1203 includes:

[0093] a calculation unit, configured to calculate a target ratio of the second signal strength to the first signal strength;

[0094] a determining unit, configured to determine second pressing operation information corresponding to the target ratio based on a preset association relationship;

[0095] The preset association relationship is used to represent the association relationship between the ratio information of the second signal strength and the first signal strength and the pressing operation information, and the second pressing operation information includes coordinate information in the second direction.

[0096] The pressing operation detection device in the embodiment of the present application can be a device, or a component, an integrated circuit, or a chip in a terminal. The device can be a mobile electronic device or a non-mobile electronic device. Exemplarily, the mobile electronic device can be a mobile phone, a tablet computer, a laptop computer, a palmtop computer, an in-vehicle electronic device, a wearable device, an ultra-mobile personal computer (ultra-mobile personal computer, UMPC), a netbook or a personal digital assistant (personal digital assistant, PDA), etc., and the non-mobile electronic device can be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (personal computer, PC), a television (television, TV), a teller machine or a self-service machine, etc., which is not specifically limited in the embodiment of the present application.

[0097] The pressing operation detection device in the embodiment of the present application may be a device having an operating system. The operating system may be an Android operating system, an iOS operating system, or other possible operating systems, which are not specifically limited in the embodiment of the present application.

[0098] The pressing operation detection device provided in the embodiment of the present application can achieve Fig.11 To avoid repetition, the various processes in the method embodiment are not described here.

[0099] Optionally, an embodiment of the present application also provides an electronic device, including a processor 1310, a memory 1309, and a program or instruction stored in the memory 1309 and executable on the processor 1310. When the program or instruction is executed by the processor 1310, each process of the above-mentioned press operation detection method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0100] It should be noted that the electronic devices in the embodiments of the present application include the mobile electronic devices and non-mobile electronic devices mentioned above.

[0101] Fig.14 A schematic diagram of the hardware structure of an electronic device for implementing various embodiments of the present application.

[0102] The electronic device 1400 includes but is not limited to: a radio frequency unit 1401, a network module 1402, an audio output unit 1403, an input unit 1404, a sensor 1405, a display unit 1406, a user input unit 1407, an interface unit 1408, a memory 1409, and a processor 1410 and other components.

[0103] Those skilled in the art will appreciate that the electronic device 1400 may also include a power source (such as a battery) for supplying power to each component, and the power source may be logically connected to the processor 1410 through a power management system, thereby implementing functions such as managing charging, discharging, and power consumption management through the power management system. Fig.14 The electronic device structure shown in the figure does not constitute a limitation on the electronic device. The electronic device may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be described in detail here.

[0104] The processor 1410 is configured to perform the following operations:

[0105] Controlling the piezoelectric sensor to transmit a first ultrasonic signal;

[0106] Controlling the ultrasonic fingerprint module to detect a first signal strength of the first ultrasonic signal received;

[0107] First pressing operation information is determined according to the first signal strength.

[0108] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, each process of the above-mentioned press operation detection method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0109] The processor is a processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0110] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned press operation detection method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0111] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0112] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0113] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present application.

[0114] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A display screen module, characterized in that: include: A display screen, a piezoelectric sensor, an ultrasonic fingerprint module and a control module, wherein the piezoelectric sensor and the ultrasonic fingerprint module are both arranged on the inner side of the display screen; the control module is electrically connected to the piezoelectric sensor and the ultrasonic fingerprint module respectively; The piezoelectric sensor and the ultrasonic fingerprint module are respectively arranged near two opposite ends of the display screen, the piezoelectric sensor transmits a first ultrasonic signal, the ultrasonic fingerprint module detects a first signal strength value of the received first ultrasonic signal, and the control chip determines the first pressing operation information based on the first signal strength value; The display screen includes at least two display areas arranged in sequence along a first direction, the ultrasonic fingerprint module detection includes a first piezoelectric unit arranged in one-to-one correspondence with the display area, the vertical projection of the first piezoelectric unit on the display screen is located in the corresponding display area, and the first piezoelectric unit detects a first signal strength value of the received first ultrasonic signal; The piezoelectric sensor and the ultrasonic fingerprint module are arranged at intervals along a second direction, and the second direction is perpendicular to the first direction.

2. The display screen module according to claim 1, characterized in that: The ultrasonic fingerprint module also includes a piezoelectric unit group corresponding to the display area one by one, and the vertical projection of the piezoelectric unit group on the display screen is located within the corresponding display area. The piezoelectric unit group includes a second piezoelectric unit and a third piezoelectric unit. The second piezoelectric unit is located between the third piezoelectric unit and the piezoelectric sensor. The third piezoelectric unit is used to emit a second ultrasonic signal, and the second piezoelectric unit is used to detect a second signal strength value of the received second ultrasonic wave. The control chip is also used to determine second pressing operation information based on the first signal strength and the second signal strength.

3. An electronic device, characterized in that: A display screen module comprising any one of claims 1 to 2.

4. A method for detecting a pressing operation, characterized in that: Applied to the electronic device according to claim 3, the method comprises: Controlling the piezoelectric sensor to transmit a first ultrasonic signal; Controlling the ultrasonic fingerprint module to detect a first signal strength of the first ultrasonic signal received; First pressing operation information is determined according to the first signal strength.

5. The method according to claim 4, characterized in that The first pressing operation information includes at least one of coordinate information in a first direction and a pressing pressure value.

6. The method according to claim 5, characterized in that After controlling the ultrasonic fingerprint module to detect the first signal strength of the received first ultrasonic signal, the method further includes: Controlling a first target object corresponding to a target display area of ​​the display screen to emit a second ultrasonic signal, wherein the target display area is determined based on the first signal strength, and the first target object is a third piezoelectric unit of the ultrasonic fingerprint module; Controlling a second target object corresponding to the target display area to detect a second signal strength of the received second ultrasonic signal, where the second target object is a second piezoelectric unit of the ultrasonic fingerprint module; Second pressing operation information is determined according to the second signal strength and the first signal strength.

7. The method according to claim 6, characterized in that The determining the second pressing operation information according to the second signal strength and the first signal strength comprises: calculating a target ratio of the second signal strength to the first signal strength; Based on a preset association relationship, determining second pressing operation information corresponding to the target ratio; The preset association relationship is used to represent the association relationship between the ratio information of the second signal strength and the first signal strength and the pressing operation information, and the second pressing operation information includes coordinate information in the second direction.

8. A pressing operation detection device, characterized in that: Applicable to the electronic device according to claim 3, the device comprising: A first control module, used for controlling the piezoelectric sensor to transmit a first ultrasonic signal; A second control module, used for controlling the ultrasonic fingerprint module to detect a first signal strength of the first ultrasonic signal received; A determination module is used to determine first pressing operation information according to the first signal strength.

9. An electronic device, characterized in that: It comprises a processor, a memory and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the pressing operation detection method as described in any one of claims 4 to 7.

10. A readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the pressing operation detection method according to any one of claims 4 to 7 are implemented.

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