Electronic device and its detection method

Abstract

The present application relates to an electronic device and a detection method thereof. In the electronic device, by making the detection device and the detection calibration respectively located in the first shell and the second shell, with the relative movement of the first shell and the second shell, the detection device and the detection calibration can also move relative to each other. The detection signal emitted by the detection device is transmitted to the detection calibration and then received by the detection device after the detection calibration is reversed. The characteristic value of the detection signal will change. By quantifying the change of the characteristic value of the detection signal, the unfolded length of the flexible screen when the first shell and the second shell move relative to any position can be determined. The quantification of the change of the characteristic value of the detection signal can greatly improve the detection accuracy, thereby improving the detection accuracy of the unfolded length of the flexible screen, and then facilitating the electronic device to adaptively adjust the display interface according to the unfolded length of the flexible screen, thereby improving the display screen texture of the flexible screen of the electronic device during the extension and retraction process.

Description

Technical Field

[0001] This application relates to the technical field of electronic devices, and particularly to an electronic device and a detection method thereof. Background Art

[0002] At present, there are retractable electronic devices. That is, during the retraction process of the electronic device, the area of the flexible screen display interface changes, so as to meet various display needs of users. However, the measurement accuracy of the unfolded length of the flexible screen will affect the control of the display effect of the display interface and the user experience. Summary of the Invention

[0003] This application provides an electronic device with relatively high measurement accuracy, and also provides a detection method.

[0004] An electronic device includes:

[0005] A housing assembly including a first housing and a second housing slidably connected to the first housing;

[0006] A flexible screen connected to the first housing and the second housing, and the unfolded length is adjusted along with the relative movement of the first housing and the second housing;

[0007] A detection device disposed in one of the first housing and the second housing;

[0008] A detection calibration disposed in the other of the first housing and the second housing; the detection device is capable of transmitting a detection signal to the detection calibration and receiving the detection signal after being reversed by the detection calibration;

[0009] A processor disposed in the housing assembly;

[0010] Wherein, the processor is configured to:

[0011] Obtain the difference between the eigenvalue when the detection signal is transmitted by the detection device and the eigenvalue when the detection signal is received by the detection device as the actual eigenvalue difference;

[0012] According to the actual eigenvalue difference and the preset functional relationship between the unfolded length of the flexible screen and the eigenvalue difference, obtain the actual unfolded length of the flexible screen.

[0013] A detection method is applied to an electronic device. The electronic device includes a first housing, a second housing and a flexible screen. The flexible screen is connected to the first housing and the second housing. The first housing and the second housing can move relative to each other to adjust the unfolded length of the flexible screen. One of the first housing and the second housing is provided with a detection device, and the other is provided with a detection calibration. The detection method includes the following steps:

[0014] The detection device emits a detection signal to the detection calibration and receives the detection signal after being reversed by the detection calibration;

[0015] Obtain the difference between the eigenvalue when the detection signal is emitted by the detection device and the eigenvalue when the detection signal is received by the detection device as the actual characteristic difference;

[0016] According to the actual characteristic difference and the preset functional relationship between the unfolded length of the flexible screen and the characteristic difference, obtain the actual unfolded length of the flexible screen.

[0017] In the embodiments of the present application, by arranging the detection device and the detection calibration in the first housing and the second housing respectively, as the first housing and the second housing move relative to each other, the detection device and the detection calibration can also move relative to each other. The detection signal emitted by the detection device is transmitted to the detection calibration and then reversed by the detection calibration and received by the detection device again. Therefore, from the time when the detection device emits the detection signal to the time when the detection device receives the detection signal, the eigenvalue of the detection signal will change. By quantifying the change in the eigenvalue of the detection signal, the unfolded length of the flexible screen can be determined when the first housing and the second housing move relative to each other to any position. The quantification of the change in the eigenvalue of the detection signal can greatly improve the detection accuracy, thereby improving the detection accuracy of the unfolded length of the flexible screen. Furthermore, it is convenient for the electronic device to adaptively adjust the display interface according to the unfolded length of the flexible screen, and then enhance the display picture texture during the telescopic process of the flexible screen of the electronic device. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 Schematic diagram of the contracted state of the electronic device provided by the embodiments of the present application;

[0020] Figure 2 Schematic diagram of the extended state of the electronic device provided by the embodiments of the present application;

[0021] Figure 3 Cross-sectional view of the electronic device provided by the embodiments of the present application;

[0022] Figure 4 Cross-sectional view of the electronic device in another state provided by the embodiments of the present application;

[0023] Figure 5Schematic diagram of the conduction of internal detection signals of an electronic device for another embodiment;

[0024] Figure 6 Schematic diagram of the conduction of internal detection signals of an electronic device for yet another embodiment;

[0025] Figure 7 Schematic diagram of the conduction of internal detection signals of an electronic device for yet another embodiment;

[0026] Figure 8 Schematic diagram of the conduction of internal detection signals of an electronic device for yet another embodiment;

[0027] Figure 9 Schematic diagram of the step flow of a detection method for one embodiment. Detailed implementation manners

[0028] To facilitate the understanding of the present application, the present application will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present application are given in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure content of the present application more thorough and comprehensive.

[0029] As used herein, an "electronic device" refers to a device capable of receiving and / or transmitting communication signals connected by any one or several of the following connection methods:

[0030] (1) Via a wired connection method, such as via a Public Switched Telephone Network (PSTN), Digital Subscriber Line (DSL), digital cable, direct cable connection;

[0031] (2) Via a wireless interface method, such as a cellular network, Wireless Local Area Network (WLAN), digital television network such as DVB-H network, satellite network, AM-FM broadcast transmitter.

[0032] An electronic device configured to communicate via a wireless interface can be referred to as a "mobile terminal". Examples of mobile terminals include but are not limited to the following electronic devices:

[0033] (1) Satellite phone or cellular phone;

[0034] (2) A Personal Communications System (PCS) terminal that can combine cellular radiotelephone with data processing, fax, and data communication capabilities;

[0035] (3) Radiotelephones, pagers, Internet / Intranet access, Web browsers, notepads, calendars, personal digital assistants (PDAs) equipped with Global Positioning System (GPS) receivers;

[0036] (4) Conventional laptop and / or palm-top receivers;

[0037] (5) Conventional laptop and / or palm-top radiotelephone transceivers, etc.

[0038] Please refer to Figure 1 and Figure 2 , Figure 1 FIG. Figure 1 is a schematic diagram of the contracted state of the electronic device 100 provided by an embodiment of the present application, Figure 2 FIG. Figure 2 is a schematic diagram of the extended state of the electronic device 100 provided by an embodiment of the present application.

[0039] The electronic device 100 of the present application includes a housing assembly 10 and a flexible screen 20, and the flexible screen 20 is connected to the housing assembly 10. A receiving cavity 10a is formed inside the housing assembly 10 (as shown in Figure 3 ). The electronic device 100 may further include a circuit board (not shown) and a battery (not shown), and both the circuit board and the battery are disposed in the receiving cavity 10a of the housing assembly 10. The circuit board may integrate a processor, a controller, a power management module, a storage unit, etc. of the electronic device 100. The battery can supply power to the flexible screen 20 and the electronic components on the circuit board. Of course, the electronic device 100 may further include a camera module (not shown), the camera module is communicatively connected to the circuit board, and the battery can supply power to the camera module. It can be understood that the electronic device 100 of the present application includes but is not limited to terminal devices such as mobile phones, tablet computers, or other portable electronic devices 100. In the embodiments of the present application, a mobile phone is taken as an example for illustration.

[0040] Specifically, the housing assembly 10 includes a first housing 11 and a second housing 12, and the second housing 12 is slidably connected to the first housing 11. In other words, the second housing 12 can slide relative to the first housing 11. For example, one of the first housing 11 and the second housing 12 may be provided with a slide rail, and the other can slide along the slide rail so that the first housing 11 and the second housing 12 can slide relative to each other, thereby increasing or shortening the overall size of the housing assembly 10 in the relative sliding direction of the first housing 11 and the second housing 12. Define the relative sliding direction of the first housing 11 and the second housing 12 as the first direction, and the first direction is the direction of the X-axis shown in Figure 1 FIG. Figure 1 , and the direction perpendicular to the first direction in the plane where the first housing 11 and the second housing 12 slide relative to each other is the second direction, and the second direction isFigure 1 The direction of the Y-axis shown.

[0041] The flexible screen 20 is connected to the first housing 11 and the second housing 12, and the flexible screen 20 adjusts the deployment length as the first housing 11 and the second housing 12 move relative to each other. It can be understood that the part of the flexible screen 20 exposed outside the housing assembly 10 can be used to display a picture, and this part of the flexible screen 20 can be referred to as the display interface 20a. The deployment length of the flexible screen 20 can be understood as the length dimension of the display interface 20a in the first direction. The deployment length of the flexible screen 20 increases as the dimension of the housing assembly 10 in the first direction increases, and decreases as the dimension of the housing assembly 10 in the first direction decreases. Therefore, by relatively sliding the first housing 11 and the second housing 12, the deployment length of the flexible screen 20 can be adjusted, and at the same time, the size of the display interface 20a of the flexible screen 20 can also be adjusted.

[0042] It should be noted that the flexible screen 20 is a structural member that can be used for display or touch in the electronic device 100. During the relative sliding of the first housing 11 and the second housing 12, part of the flexible screen 20 is received inside the housing assembly 10 and is not exposed, so this part will not display a picture. And the display interface 20a, as the part of the flexible screen 20 exposed outside the first housing 11 and the second housing 12, when it is lit or displays a picture, the outside of the electronic device 100 can observe the picture displayed on the display interface 20a. It can be understood that the display interface 20a also changes with the relative movement of the first housing 11 and the second housing 12.

[0043] Continue to refer to Figure 1 and Figure 2 As shown, in some embodiments, the lighting of the picture on the display interface 20a is synchronized with the relative sliding of the first housing 11 and the second housing 12. Exactly speaking, since the display interface 20a is the area defined by the part of the flexible screen 20 exposed outside the first housing 11 and the second housing 12, by controlling the display picture of the display interface 20a to be synchronized with the telescopic movement of the housing assembly 10, the overall smoothness of the display picture can be better, which can produce a visual impact and improve the user experience.

[0044] In the embodiments of the present application, as shown in combination with Figure 3 and Figure 4 One of the first housing 11 and the second housing 12 is provided with a detection device 30, and the other is provided with a detection calibration 40. The detection device 30 can emit a detection signal to the detection calibration 40 and receive the detection signal after being reversed by the detection calibration 40. It can be understood that after the detection signal emitted by the detection device 30 reaches the detection calibration 40, the detection calibration 40 can change the propagation direction of the detection signal, and the detection signal after the direction change is finally received by the detection device 30 after propagation.

[0045] For the processor, it is disposed in the housing assembly 10 and coupled to the detection device 30 to achieve signal transmission. The processor is configured to: obtain the difference between the eigenvalue when the detection signal is transmitted by the detection device 30 and the eigenvalue when the detection signal is received by the detection device 30 as the actual eigenvalue difference; and obtain the actual deployment length of the flexible screen 20 according to the actual eigenvalue difference and the preset functional relationship between the deployment length of the flexible screen 20 and the eigenvalue difference. It can be understood that in a specific electronic device 100, there is a preset functional relationship between the eigenvalue difference and the deployment length of the flexible screen 20. Using this preset functional relationship, the actual deployment length of the flexible screen 20 can be directly obtained according to the actually detected eigenvalue difference.

[0046] In the electronic device 100, by disposing the detection device 30 and the detection calibration 40 in the first housing 11 and the second housing 12 respectively, as the first housing 11 and the second housing 12 move relative to each other, the detection device 30 and the detection calibration 40 can also move relative to each other. The detection signal emitted by the detection device 30 is transmitted to the detection calibration 40 and then reversed by the detection calibration 40 and received by the detection device 30 again. Therefore, from the time when the detection device 30 emits the detection signal to the time when the detection device 30 receives the detection signal, the eigenvalue of the detection signal will change. By quantifying the change in the eigenvalue of the detection signal, the actual deployment length of the flexible screen 20 when the first housing 11 and the second housing 12 move relative to each other to any position can be determined. And the quantification of the change in the eigenvalue of the detection signal can greatly improve the detection accuracy, and further improve the detection accuracy of the deployment length of the flexible screen 20.

[0047] Specifically, in the present application, the detection device 30 includes a transmitter and a receiver. The transmitter is used to emit a detection signal, and the receiver is used to receive the detection signal. Both the transmitter and the receiver are coupled to the processor so that the processor can obtain the eigenvalue when the detection signal is emitted from the transmitter, obtain the eigenvalue when the detection signal is received from the receiver, and process the obtained information.

[0048] Further, the transmitter and the receiver can be integrated into one unit and synchronously installed in the housing assembly 10, and the distance between the two is extremely small and can be ignored. In other embodiments, the transmitter and the receiver can be two independent parts and are respectively installed in the housing assembly 10, and there can be a relatively large distance between the transmitter and the receiver, as long as it is ensured that both the transmitter and the receiver are located in one of the first housing 11 and the second housing 12.

[0049] In some embodiments, the detection device 30 and the detection calibration 40 are arranged at intervals in a predetermined direction. As the first housing 11 and the second housing 12 move relative to each other, the distance between the detection device 30 and the detection calibration 40 in the predetermined direction changes. It can be understood that during the relative movement of the first housing 11 and the second housing 12, the distance between the detection device 30 and the detection calibration 40 changes, showing a state of approaching or moving away from each other. Therefore, from the detection device 30 emitting a detection signal to the detection device 30 receiving the detection signal, the conduction path of the detection signal changes, and thus the characteristic value of the detection signal will change.

[0050] It should be noted that the above-mentioned predetermined direction can be the first direction, the second direction, or other directions other than the first direction and the second direction.

[0051] Such as Figure 3 、 Figure 4 As shown in, specifically in an embodiment of the present application, the detection device 30 and the detection calibration 40 are arranged at intervals in the first direction. As the first housing 11 and the second housing 12 move relative to each other, the distance between the detection device 30 and the detection calibration 40 in the first direction changes. In this way, as the first housing 11 and the second housing 12 move relative to each other, the change amount of the characteristic value of the detection signal can also change, and thus the deployment length of the flexible screen 20 when the first housing 11 and the second housing 12 move relative to each other to any position can be determined.

[0052] Such as Figure 5 As shown in, in another embodiment of the present application, the detection device 30 and the detection calibration 40 are arranged at intervals in the second direction. As the first housing 11 and the second housing 12 move relative to each other, the distance between the detection device 30 and the detection calibration 40 in the second direction changes. In this way, as the first housing 11 and the second housing 12 move relative to each other, the change amount of the characteristic value of the detection signal can also change, and thus the deployment length of the flexible screen 20 when the first housing 11 and the second housing 12 move relative to each other to any position can be determined.

[0053] In the present application, the detection calibration 40 has a reflection surface 41 that can reflect the detection signal. Further, the reflection surface 41 can be a plane or a curved surface. Further, the detection calibration 40 can be a structural member that is additionally provided on the housing assembly 10 and can perform a reflection function, such as a lens. The detection calibration 40 can also be a part of the inner wall surface of the housing assembly 10 that encloses the accommodation cavity and forms a reflection surface 41 with reflection function after being processed.

[0054] In some embodiments of the present application, the reflection surface 41 is inclined with respect to the relative movement direction of the first housing 11 and the second housing 12. That is, the reflection surface 41 is inclined with respect to the first direction, or in other words, the reflection surface 41 is not perpendicular or parallel to the first direction.

[0055] In Figure 3 , Figure 4 the embodiment shown, the detection device 30 is disposed in the first housing 11, and the detection calibration 40 is disposed in the second housing 12. The detection device 30 and the detection calibration 40 are spaced apart along a first direction. The reflecting surface 41 is a plane perpendicular to the first direction. In an improved embodiment based on Figure 3 , Figure 4 , the reflecting surface 41 may also be a curved surface, or may be inclined relative to the first direction.

[0056] In Figure 5 the embodiment shown, the detection device 30 is disposed in the first housing 11, and the detection calibration 40 is disposed in the second housing 12. The detection device 30 and the detection calibration 40 are spaced apart along a second direction. As the first housing 11 and the second housing 12 move relative to each other, the detection calibration 40 moves along the first direction. The reflecting surface 41 is a plane inclined relative to the first direction. The detection device 30 emits a detection signal toward the reflecting surface 41 in a direction perpendicular to the reflecting surface 41, and the detection signal is reflected back to the detection device 30 after being conducted to the reflecting surface 41. As the first housing 11 and the second housing 12 move relative to each other, the distance between the detection calibration 40 and the detection device 30 changes, so that the change amount of the characteristic value of the detection signal can also change. Thus, the deployment length of the flexible screen 20 can be determined when the first housing 11 and the second housing 12 move relative to each other to any position. In an improved embodiment based on Figure 5 , the reflecting surface 41 may also be a curved surface that is generally inclined relative to the first direction.

[0057] As Figure 6 , Figure 7 shown, in some embodiments, the electronic device 10 includes an adjusting member 80. The detection signal emitted and / or received by the detection device 30 can pass through the adjusting member 80, and the adjusting member 80 can change the transmission rate of the detection signal. As the first housing 11 and the second housing 12 move relative to each other, the travel of the detection signal inside the adjusting member 80 changes.

[0058] It can be understood that the adjusting member 80 is located on the conduction path of the detection signal. It may be that only the detection signal emitted from the detection device 30 passes through the adjusting member 80, or it may be that only the detection signal reflected from the detection calibration 40 is received by the detection device 30 after passing through the adjusting member 80, or it may be that the detection signal emitted from the detection device 30 passes through the adjusting member 80 and at the same time the detection signal reflected from the detection calibration 40 is received by the detection device 30 after passing through the adjusting member 80.

[0059] It should be noted that the adjusting member 80 can change the transmission rate of the detection signal. It can be understood that, compared with the situation where the adjusting member 80 is not provided, the setting of the adjusting member 80 will cause a change in the transmission rate of the detection signal. After the adjusting member 80 is set, the transmission rate of the detection signal can be increased or decreased, which depends on the conduction performance of the adjusting member 80 and the conductive medium around the adjusting member 80.

[0060] It can be understood that during the relative movement of the first housing 11 and the second housing 12, regardless of whether the distance between the detection device 30 and the detection calibration 40 changes, by moving the adjusting member 80 to change the travel of the detection signal inside the adjusting member 80, the degree of change in the transmission rate of the detection signal can be made different. Furthermore, when the detection device 30 emits a detection signal to receiving the detection signal, the characteristic value of the detection signal will change.

[0061] It can be understood that during the relative movement of the first housing 11 and the second housing 12, if the distance between the detection device 30 and the detection calibration 40 does not change, then the change in the characteristic value of the detection signal is only determined by the influence of the adjusting member 80 on the conduction rate of the detection signal. During the relative movement of the first housing 11 and the second housing 12, if the distance between the detection device 30 and the detection calibration 40 can also change, then the change in the characteristic value of the detection signal is jointly determined by the influence of the adjusting member 80 on the conduction rate of the detection signal and the change in the conduction path of the detection signal.

[0062] In the present application, with the relative movement of the first housing 11 and the second housing 12, the adjusting member 80 can move, and the thickness of the adjusting member 80 gradually changes along its movement direction to form a wedge-shaped structure.

[0063] It can be understood that the adjusting member 80 can be fixedly connected to one of the first housing 11 and the second housing 12, so that with the relative movement of the first housing 11 and the second housing 12, the adjusting member 80 can move relative to the other of the first housing 11 and the second housing 12. Alternatively, the adjusting member 80 can also be movably connected to any one of the first housing 11 and the second housing 12, so that with the relative movement of the first housing 11 and the second housing 12, the adjusting member 80 can move relative to both the first housing 11 and the second housing 12.

[0064] In addition, the relative movement direction of the first housing 11 and the second housing 12 (i.e., the first direction) can be the same as or different from the movement direction of the adjusting member 80. For example, the adjusting member 80 can move along the first direction, or can also move along the second direction.

[0065] It can be understood that as the first housing 11 and the second housing 12 move relative to each other, the adjusting member 80 moves, so that the position of the adjusting member 80 relative to at least one of the detection device 30 and the detection calibration 40 can be changed, and further the travel of the detection signal inside the adjusting member 80 is changed.

[0066] As Figure 6 shown, in an embodiment of the present application, the detection device 30 is arranged on the first housing 11, and the detection calibration 40 is arranged on the second housing 12. The detection device 30 and the detection calibration 40 are arranged at intervals along the second direction, and the detection calibration 40 extends along the first direction and has a large area, so as to be able to reverse the detection signal emitted by the detection device 30 during the relative movement of the first housing 11 and the second housing 12.

[0067] The adjusting member 80 is relatively fixed to the detection calibration 40. As the first housing 11 and the second housing 12 move relative to each other, the distance between the detection device 30 and the detection calibration 40 in the second direction does not change, but the adjusting member 80 moves along the first direction and has a wedge-shaped structure with a gradually changing thickness along the first direction, so that the thickness of the adjusting member 80 through which the detection signal passes changes, and further the characteristic value of the detection signal can also change. Therefore, the deployment length of the flexible screen 20 can be determined when the first housing 11 and the second housing 12 move relative to each other to any position.

[0068] As Figure 7 shown, in another embodiment, the detection device 30 and the detection calibration 40 can also be arranged at intervals along the first direction. As the first housing 11 and the second housing 12 move relative to each other, the distance between the detection device 30 and the detection calibration 40 changes, and the conduction path of the detection signal changes, so that the characteristic value of the detection signal will change. In addition, the adjusting member 80 is movably installed on the first housing 11. During the relative movement of the first housing 11 and the second housing 12, the second housing 12 can act on the adjusting member 80 through a wedge block, so that the adjusting member 80 moves relative to the first housing 11 and the second housing 12 along the second direction. Since the adjusting member 80 has a wedge-shaped structure with a gradually changing thickness along the second direction, the thickness of the adjusting member 80 through which the detection signal passes changes, and further the characteristic value of the detection signal can also change. In this way, the change degree of the characteristic value of the detection signal can be jointly determined by the influence of the adjusting member 80 on the detection signal conduction rate and the change of the detection signal conduction path, so as to determine the deployment length of the flexible screen 20 when the first housing 11 and the second housing 12 move relative to each other to any position.

[0069] As Figure 3 、 Figure 4 、 Figure 5As shown, in the present application, the detection device 30 can directly emit a detection signal towards the detection calibration 40, and after the detection signal is reversed by the detection calibration 40, it directly returns along the original path to the detection device 30 and is received by the detection device 30. In other embodiments, for the detection signal, it can also be received by the detection device 30 after being reversed multiple times between the detection device 30 and the detection calibration 40. In this way, the conduction path of the detection signal can also be extended, and the actual feature difference can be increased as much as possible, thereby improving the detection accuracy.

[0070] As Figure 8 shown, in the present application, the electronic device 100 may further include a first reversing member 50, and the detection signal emitted by the detection device 30 is conducted to the detection calibration 40 after being reversed by the first reversing member 50.

[0071] It can be understood that the detection device 30 emits a detection signal towards the first reversing member 50, the detection signal is conducted to the detection calibration 40 after being reversed by the first reversing member 50, and then is received by the detection device 30 after being reversed by the detection calibration 40. Specifically, there may be one first reversing member 50. In this case, the detection signal emitted by the detection device 30 only needs to pass through the first reversing member 50 once to reach the detection calibration 40. In other embodiments, the number of the first reversing members 50 may also be a positive integer such as 2, 3, 4, etc. In this way, the detection signal emitted by the detection device 30 needs to pass through multiple first reversing members 50 in sequence to reach the detection calibration 40. Such a setting can extend the conduction path of the detection signal, increase the actual feature difference as much as possible, and thereby improve the detection accuracy. It can be understood that the more the number of the first reversing members 50, the longer the conduction path of the detection signal, but too many first reversing members 50 will also occupy a large volume, which is not conducive to the miniaturization design of the electronic device 100, and the layout accuracy of each first reversing member 50 is also required to be higher.

[0072] It should be noted that considering the influence of the relative movement between the first housing 11 and the second housing 12 on the detection signal transmission path, the layout of each first reversing member 50 needs to be designed according to the optical path requirements.

[0073] In the present application, the electronic device 100 may further include a second reversing member 60, and the detection signal after being reversed by the detection calibration 40 is conducted to the detection device 30 after being reversed by the second reversing member 60.

[0074] It can be understood that after the detection signal is commutated by the detection calibration 40, it is commutated by the second commutator 60 and then conducted to the detection device 30 and received by the detection device 30. Specifically, there can be one second commutator 60. In this case, the detection signal after being commutated by the detection calibration 40 only needs to be commutated by one second commutator 60 to reach the detection device 30. In other embodiments, the number of the second commutators 60 can also be a positive integer such as 2, 3, 4, etc. In this way, the detection signal after being commutated by the detection calibration 40 needs to pass through a plurality of second commutators 60 in sequence to reach the detection device 30. By setting it in this way, the conduction path of the detection signal can be extended, and the actual characteristic difference can be increased as much as possible, thereby improving the detection accuracy. It can be understood that the more the number of the second commutators 60, the longer the conduction path of the detection signal. However, too many second commutators 60 will also occupy a large volume, which is not conducive to the miniaturization design of the electronic device 100, and the layout accuracy of each second commutator 60 is also required to be higher.

[0075] It should be noted that considering the influence of the relative movement between the first housing 11 and the second housing 12 on the detection signal transmission path, the layout of each second commutator 60 needs to be designed according to the optical path requirements.

[0076] It should be noted that in some embodiments, the first commutator 50 can be provided only on the path where the detection signal is conducted from the detection device 30 to the detection calibration 40, and the detection signal after being commutated by the detection calibration 40 is directly received by the detection device 30 without being commutated. Or, the second commutator 60 can also be provided only on the path where the detection signal is conducted from the detection calibration 40 to the detection device 30, and the detection signal emitted by the detection device 30 is directly conducted to the detection calibration 40 without being commutated.

[0077] Alternatively, a first commutation member 50 may be provided on the path where the detection signal is conducted from the detection device 30 to the detection calibration 40, and a second commutation member 60 may be provided on the path where the detection signal is conducted from the detection calibration 40 to the detection device 30. The detection signal emitted by the detection device 30 needs to be commuted by the first commutation member 50, the detection calibration 40, and the second commutation member 60 before returning to the detection device 30. At this time, the first commutation member 50 and the second commutation member 60 may be independent structures, so that the path where the detection signal is conducted from the detection device 30 to the detection calibration 40 is different from the path where the detection signal is conducted from the detection calibration 40 to the detection device 30. Alternatively, the first commutation member 50 and the second commutation member 60 may be the same commutation structure, so that the path where the detection signal is conducted from the detection device 30 to the detection calibration 40 coincides with the path where the detection signal is conducted from the detection calibration 40 to the detection device 30. That is, on the path where the detection signal is conducted from the detection device 30 to the detection calibration 40, it needs to pass through the commutation of the first commutation member 50, and after the detection signal is commuted by the detection calibration 40, it returns along the original path and passes through the commutation of the first commutation member 50 again before returning to the detection device 30. At this time, the first commutation member 50 can be understood as the second commutation member 60 (as Figure 8 shown).

[0078] It should be noted that the first commutation member 50 and the second commutation member 60 may be reflection structures that are additionally provided on the housing assembly 10 and can reflect the detection signal, such as a mirror surface. The first commutation member 50 and the second commutation member 60 may also be a plane or a curved surface with a reflection function formed by processing the inner wall surface of the housing assembly 10 that encloses the accommodation cavity.

[0079] Specifically, in the Figure 8 illustrated embodiment, the detection device 30 is provided on the first housing 11, and the detection calibration 40 is provided on the second housing 12. The housing assembly 10 is further provided with a first commutation member 50. The detection device 30 emits a detection signal to the first commutation member 50, and the first commutation member 50 conducts the detection signal to the detection calibration 40 after commuting it. After the detection calibration 40 commutes the detection signal, the detection signal returns along the original path and is received by the detection device 30.

[0080] Among them, the first commutation member 50 is located on one side of the electronic device 100 along the second direction, while both the detection device 30 and the detection calibration 40 are located on the other side of the electronic device 100 along the second direction, and the detection device 30 and the detection calibration 40 are spaced apart along the first direction.

[0081] In this application, the detection signal may be a sound wave, or the detection signal may also be a light wave.

[0082] In this application, when the detection signal is a sound wave, the propagation medium of the detection signal can be air or other physical structures. The path for the detection signal to propagate between the detection device 30 and the detection calibration 40 is a dedicated propagation channel. When the propagation channel is filled with air, the sound wave propagates with air as the propagation medium. Alternatively, the propagation channel can be filled with media such as copper or iron that can conduct sound waves.

[0083] In this application, when the detection signal is a sound wave, the transmitter is a sound wave transmitter and the receiver is a sound wave receiver. When the detection signal is a light wave, the transmitter is an LED and the receiver is a photosensitive sensor. In this application, when the detection signal is a sound wave, an absorbing material can be used around the conduction path of the detection signal to play a shielding role, thereby preventing the detection signal from being interfered by sound waves generated by the external environment or other components inside the electronic device, resulting in a higher detection accuracy. When the detection signal is a light wave, an absorbing or light-blocking material can be used around the conduction path of the detection signal to prevent interference from external environmental light or other light signals inside the electronic device to the detection signal, resulting in a higher detection accuracy.

[0084] When the detection signal is a light wave, the detection signal can be infrared light or other types of light.

[0085] In addition, the detection device 30 can continuously emit detection signals, or the detection device 30 can continuously emit detection signals during the relative movement of the first housing 11 and the second housing 12. Alternatively, the detection device 30 can also intermittently emit detection signals at a certain frequency.

[0086] In this application, the characteristic value of the detection signal can be time, that is, the processor can obtain the difference between the time when the detection signal is emitted by the detection device 30 and the time when the detection signal is received by the detection device 30. By calculating the time difference between the emission and reflection of the sound wave or light wave, the conduction distance of the sound wave or light wave can be calculated, thereby obtaining the unfolded length of the flexible screen 20.

[0087] Furthermore, the characteristic value of the detection signal can be phase, that is, the processor can obtain the difference between the phase when the detection signal is emitted by the detection device 30 and the phase when the detection signal is received by the detection device 30. By calculating the phase difference between the emission and reflection of the sound wave or light wave, the conduction distance of the sound wave or light wave can be calculated, thereby obtaining the unfolded length of the flexible screen 20. It can be understood that the processor can obtain the phase when the detection signal is emitted and received in a direct manner, or the processor can also obtain the phase when the detection signal is emitted and received in an indirect manner. For example, first obtain the positions of the wave peaks or wave valleys when the detection signal is emitted and received, and obtain the number of waveforms, and then convert and calculate to obtain the phase difference between the emission and reflection of the sound wave or light wave.

[0088] Further, the eigenvalue of the detection signal can be the frequency offset, that is, the processor can obtain the difference between the frequency offset when the detection signal is transmitted by the detection device 30 and the frequency offset when the detection signal is received by the detection device 30. By calculating the frequency deviation of the sound wave or light wave from transmission to reflection, the conduction distance of the sound wave or light wave can be calculated, so as to obtain the unfolded length of the flexible screen 20.

[0089] It can be understood that the eigenvalue can also be other features such as the resonant frequency, as long as there is a difference between the eigenvalue when the detection signal is transmitted by the detection device 30 and the eigenvalue when the detection signal is received by the detection device 30. In addition, when it is difficult to directly obtain the preset functional relationship, the one-to-one correspondence between the characteristic differences at multiple positions during the relative movement of the first housing 11 and the second housing 12 and the actual unfolded length can be established through experiments, and then analyzed through a mathematical linear regression model to obtain the functional relationship between the unfolded length of the flexible screen and the characteristic differences.

[0090] It can be understood that the detection signal emitted by the detection device 30 can finally return to the detection device 30 after one or more round trips between the detection device 30 and the detection calibration 40. At this time, the characteristic difference can be the difference between the eigenvalue when the detection signal is emitted for the Nth time and the eigenvalue when the detection signal is received for the Mth time, where M≥N≥1, and N and M are both positive integers. For example, if the detection signal makes 4 round trips between the detection device 30 and the detection calibration 40, the characteristic difference can be the difference between the eigenvalue when the detection signal is emitted for the first time and the eigenvalue when the detection signal is received for the fourth time, or the characteristic difference can be the difference between the eigenvalue when the detection signal is emitted for the second time and the eigenvalue when the detection signal is received for the third time.

[0091] It should be noted that in view of the large conduction rate of light waves, when the eigenvalue is time, the time difference between the emission and reflection of light waves is small and the detection difficulty is large. Detection can be carried out for the case where the eigenvalue is phase or frequency offset.

[0092] As Figure 3 、 Figure 4 shown, in an embodiment of the present application, the detection device 30 is disposed on the first housing 11, and the detection calibration 40 is disposed on the second housing 12. The detection device 30 and the detection calibration 40 are arranged at intervals along the first direction. The detection device 30 directly emits a sound wave to the detection calibration 40, and the sound wave is reflected back along the original path after being redirected by the detection calibration 40 and is received by the detection device 30. By detecting the time when the sound wave is emitted by the detection device 30 and the time when the sound wave is received by the detection device 30, the time difference between the two is the propagation time of the sound wave.

[0093] In a specific electronic device 100, there is a preset functional relationship between the propagation time of sound waves and the actual unfolding length of the flexible screen 20. Using this preset functional relationship, the actual unfolding length of the flexible screen 20 can be directly obtained according to the actual propagation time of the sound waves.

[0094] It should be noted that the propagation medium of the sound waves is air, and the propagation distance of the sound waves can be obtained through the propagation speed and propagation time of the sound waves in the air. There is a convertible relationship between the propagation distance of the sound waves and the unfolding length of the flexible screen 20.

[0095] It can be understood that the relative position when the first housing 11 and the second housing 12 move relative to each other to make the size of the housing assembly 10 in the first direction the smallest (i.e., the housing assembly 10 shrinks to the minimum extent) is used as the reference position to determine the preset functional relationship.

[0096] At the reference position, the time when the detected sound wave is emitted by the detection device 30 and the time when it is received by the detection device 30 are obtained. The time difference between the two is the propagation time Δt0 of the sound wave. The propagation distance S0 of the sound wave can be obtained through the propagation speed v of the sound wave in the air and the propagation time Δt0, so S0 = v * Δt0 / 2. In addition, at the reference position, the length of the part of the flexible screen 20 exposed outside the housing assembly 10 in the first direction is the initial unfolding length of the flexible screen 20, and this initial unfolding length is set as L0.

[0097] When the first housing 11 and the second housing 12 move relative to each other to any position, the time difference between the time when the detected sound wave is emitted by the detection device 30 and the time when it is received by the detection device 30 is Δt1. Then the propagation distance S1 of the sound wave is S1 = v * Δt1 / 2, and the displacement ΔS of the relative sliding of the first housing 11 and the second housing 12 is ΔS = S1 - S0 = v * (Δt1 - Δt0) / 2. Thus, the unfolding length L of the flexible screen 20 is L = L0 + ΔS = L0 + v * (Δt1 - Δt0) / 2. Therefore, when L0, v, and Δt0 are all known, the actual unfolding length L of the flexible screen 20 can be obtained through the actual characteristic difference Δt1.

[0098] Similarly, when the characteristic value is the phase or frequency offset, the corresponding calculation principle can also be used to obtain the functional relationship between the preset unfolding length of the flexible screen 20 and the characteristic difference.

[0099] In the present application, the controller of the electronic device 100 is coupled to the processor. Specifically, the controller is electrically connected or wirelessly communicatively connected to the processor. The controller is configured to: adjust the length of the display interface 20a of the flexible screen 20 according to the unfolding length of the flexible screen 20. It can be understood that the unfolding length of the flexible screen 20 is equal to the length of the display interface 20a of the flexible screen 20. That is to say, according to the unfolding amount of the flexible screen 20, the display interface 20a displays the corresponding amount of content. By controlling the display interface 20a to maintain consistency with the unfolding length of the flexible screen 20, the controller can ensure that the display screen of the display interface 20a is smooth during the telescopic movement of the flexible screen 20, and a good visual experience can be obtained. Since the detection accuracy of the unfolding length of the flexible screen 20 can be effectively improved in the electronic device 100, when adjusting the length of the display interface 20a of the flexible screen 20 according to the unfolding length of the flexible screen 20, the adjustment accuracy of the display interface 20a of the flexible screen 20 can be ensured, so as to improve the picture quality.

[0100] Combined with Figure 3 、 Figure 4 As shown in the figure, in the present application, the electronic device 100 includes a driving mechanism 70. The driving mechanism 70 is disposed in the housing assembly 10 and can drive the first housing 11 and the second housing 12 to move relative to each other. Specifically, the driving mechanism 70 has a fixed part and a movable part. When the driving mechanism 70 works, the movable part can move relative to the fixed part. The fixed part is connected to the first housing 11, and the movable part is connected to the second housing 12 and is used to drive the second housing 12 to move relative to the first housing 11.

[0101] The driving mechanism 70 can be a traditional belt driving structure or a gear driving structure, or can be a telescopic driving structure such as a cylinder. The structure of the driving mechanism 70 is not limited herein, as long as it can drive the first housing 11 and the second housing 12 to move relative to each other to adjust the unfolding length of the flexible screen 20.

[0102] Specifically, the controller is coupled to the driving mechanism 70. The controller is configured to: control the start and stop of the driving mechanism 70 according to the unfolding length of the flexible screen 20. It can be understood that when the unfolding length of the flexible screen 20 reaches a preset value, the controller controls the driving mechanism 70 to stop operating, so that the first housing 11 and the second housing 12 can no longer move relative to each other. When the unfolding length of the flexible screen 20 does not reach the preset value, the controller controls the driving mechanism 70 to continue operating, so that the first housing 11 and the second housing 12 continue to move relative to each other, and the unfolding length of the flexible screen 20 can be changed until the preset value is reached.

[0103] As Figure 9 shown, it is a schematic flowchart of the detection method provided by the embodiment of the present application. The detection method includes:

[0104] Step S101: The detection device 30 transmits a detection signal to the detection calibration 40 and receives the detection signal after being reversed by the detection calibration 40.

[0105] The detection device 30 can transmit the detection signal to the detection calibration 40 directly or indirectly. After the detection signal is conducted to the detection calibration 40, the detection calibration 40 reverses the detection signal to change the conduction direction of the detection signal, so that the detection device 30 receives the detection signal. Specifically, the transmitter in the detection device 30 transmits the detection signal, and the receiver receives the detection signal. The detection signal can be a light wave or a sound wave, and after propagation, its characteristic value will change.

[0106] Step S102: Obtain the difference between the characteristic value of the detection signal when it is transmitted by the detection device 30 and the characteristic value of the detection signal when it is received by the detection device 30 as the actual characteristic difference.

[0107] The detection signal transmitted by the detection device 30 is reversed by the detection calibration 40 after being conducted to the detection calibration 40 and then received by the detection device 30. Therefore, from the time when the detection device 30 transmits the detection signal to the time when the detection device 30 receives the detection signal, the characteristic value of the detection signal will change. By obtaining the change difference of the characteristic value of the detection signal, the quantification of the change of the characteristic value of the detection signal is realized, which helps to accurately calculate the unfolding length of the flexible screen 20 and improve the detection accuracy.

[0108] Specifically, the characteristic value can be time or phase or frequency offset. That is, the actual characteristic difference can be obtained by the difference between the time when the detection signal is transmitted and the time when it is received, or the actual characteristic difference can be obtained by the difference between the phase when the detection signal is transmitted and the phase when it is received, or the actual characteristic difference can be obtained by the difference between the frequency offset when the detection signal is transmitted and the frequency offset when it is received.

[0109] Step S103: Obtain the actual unfolding length of the flexible screen 20 according to the actual characteristic difference and the preset functional relationship between the unfolding length of the flexible screen 20 and the characteristic difference.

[0110] In the above detection method, with the relative movement of the first housing 11 and the second housing 12, the detection device 30 and the detection calibration 40 can also move relative to each other. The detection signal emitted by the detection device 30, after being conducted to the detection calibration 40 and reversed by the detection calibration 40, is received by the detection device 30 again. When the detection signal is emitted by the detection device 30 and then received by the detection device 30, its characteristic value will change. By taking the difference between the characteristic value at the time of emission and the characteristic value at the time of reception, the change in the characteristic value of the detection signal can be quantified, and then the deployment length of the flexible screen 20 when the first housing 11 and the second housing 12 move relative to each other to any position can be determined. Moreover, since the change amount of the characteristic value of the detection signal can be accurately detected and the detection accuracy is relatively high, the accuracy of the obtained deployment length of the flexible screen 20 can also be relatively high.

[0111] Further, after S103, the following steps may also be included:

[0112] S104, adjusting the length of the display interface of the flexible screen according to the deployment length of the flexible screen.

[0113] Based on the deployment length of the flexible screen 20, the controller can control the display interface 20a of the flexible screen 20 so that the picture displayed on the flexible screen 20 exactly matches the deployment length of the flexible screen 20, thereby ensuring the adjustment accuracy of the display interface 20a of the flexible screen 20 and improving the picture quality.

[0114] S105, controlling the start and stop of the relative movement of the first housing 11 and the second housing 12 according to the deployment length of the flexible screen 20.

[0115] According to the deployment length of the flexible screen 20, when the deployment length of the flexible screen 20 reaches a preset value, the relative movement of the first housing 11 and the second housing 12 can be stopped. When the deployment length of the flexible screen 20 does not reach the preset value, the relative movement of the first housing 11 and the second housing 12 can be changed to change the deployment length of the flexible screen 20, so that the deployment length of the flexible screen 20 can be accurately adjusted.

[0116] In the above embodiments, the descriptions of the respective embodiments have their own focuses. For parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0117] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0118] The above-described embodiments merely represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several variations and improvements can still be made, and these all fall within the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. An electronic device, characterized in that, Comprising: A housing assembly, including a first housing and a second housing slidably connected to the first housing; A flexible screen, connected between the first housing and the second housing, and adjusting its unfolded length with the relative movement of the first housing and the second housing; A detection device, disposed in one of the first housing and the second housing; A detection calibration, disposed in the other of the first housing and the second housing; the detection device can emit a detection signal to the detection calibration and receive the detection signal after being reversed by the detection calibration; The electronic device includes an adjusting member, the detection signal emitted and / or received by the detection device can pass through the adjusting member, and the adjusting member can change the transmission rate of the detection signal; With the relative movement of the first housing and the second housing, the travel of the detection signal inside the adjusting member changes; A processor, disposed in the housing assembly; Wherein, the processor is configured to: Obtain the difference between the characteristic value of the detection signal when it is emitted by the detection device and the characteristic value of the detection signal when it is received by the detection device as the actual characteristic difference; According to the actual characteristic difference and the preset functional relationship between the unfolded length of the flexible screen and the characteristic difference, obtain the actual unfolded length of the flexible screen.

2. The electronic device according to claim 1, characterized in that, The detection device includes a transmitter for emitting the detection signal and a receiver for receiving the detection signal; both the transmitter and the receiver are coupled to the processor.

3. The electronic device according to claim 1, wherein The detection signal is a sound wave; or, the detection signal is a light wave.

4. The electronic device according to claim 3, wherein The characteristic value is time or phase or frequency offset.

5. The electronic device according to claim 1, wherein The detection device and the detection calibration are spaced apart along a predetermined direction, and with the relative movement of the first housing and the second housing, the distance between the detection device and the detection calibration along the predetermined direction changes.

6. The electronic device according to claim 5, wherein The detection calibration has a reflecting surface capable of reflecting the detection signal, and the reflecting surface is a plane or a curved surface.

7. The electronic device according to claim 6, wherein The reflecting surface is inclined with respect to the relative movement direction of the first housing and the second housing.

8. The electronic device according to claim 1, wherein With the relative movement of the first housing and the second housing, the adjusting member can move, and the adjusting member has a wedge-shaped structure with a gradually changing thickness along its movement direction.

9. The electronic device according to claim 1, wherein The electronic device includes a first commutation member, and the detection signal emitted by the detection device is conducted to the detection calibration after being reversed by the first commutation member.

10. The electronic device according to claim 1 or 9, characterized in that, The electronic device includes a second commutation member, and the detection signal after being reversed by the detection calibration is conducted to the detection device after being reversed by the second commutation member.

11. The electronic device according to claim 1, wherein The electronic device includes a controller coupled to the processor, and the controller is configured to: Adjust the length of the display interface of the flexible screen according to the unfolded length of the flexible screen.

12. The electronic device according to claim 11, wherein The electronic device includes a driving mechanism, the driving mechanism is disposed in the housing assembly and can drive the relative movement of the first housing and the second housing; the controller is coupled to the driving mechanism, and the controller is configured to: Control the start and stop of the driving mechanism according to the actual unfolded length of the flexible screen.

13. A detection method, applied to an electronic device, characterized in that, The electronic device includes a first housing, a second housing, and a flexible screen. The flexible screen is connected to the first housing and the second housing. The first housing and the second housing can move relative to each other to adjust the unfolding length of the flexible screen. One of the first housing and the second housing is provided with a detection device, and the other is provided with a detection calibration. The electronic device includes an adjusting member. The detection signal transmitted and / or received by the detection device can pass through the adjusting member, and the adjusting member can change the transmission rate of the detection signal; As the first housing and the second housing move relative to each other, the travel of the detection signal inside the adjusting member changes; The detection method includes the following steps: The detection device transmits a detection signal to the detection calibration and receives the detection signal after being reversed by the detection calibration; Obtain the difference between the eigenvalue when the detection signal is transmitted by the detection device and the eigenvalue when the detection signal is received by the detection device as the actual eigenvalue difference; According to the actual eigenvalue difference and the preset functional relationship between the unfolding length of the flexible screen and the eigenvalue difference, obtain the actual unfolding length of the flexible screen.

14. The detection method according to claim 13, wherein, After the step of obtaining the actual unfolding length of the flexible screen according to the actual eigenvalue difference and the preset functional relationship between the unfolding length of the flexible screen and the eigenvalue difference, the following steps are further included: Adjust the length of the display interface of the flexible screen according to the unfolding length of the flexible screen; Control the start and stop of the relative movement of the first housing and the second housing according to the actual unfolding length of the flexible screen.

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