Electronic device and method of detecting the same

Abstract

The application relates to an electronic device and a detection method thereof. The electronic device comprises a shell assembly, a flexible screen, a detection device and a processor. The shell assembly comprises a first shell and a second shell which is in sliding connection with the first shell. The flexible screen is connected to the first shell and the second shell and adjusts the unfolded length according to the relative movement of the first shell and the second shell. The detection device comprises a transmitter for transmitting a detection signal and a receiver for receiving the detection signal. The strength of the detection signal received by the receiver changes with the relative movement of the first shell and the second shell. The processor is arranged in the shell assembly and is coupled with the detection device. The processor is configured to obtain the difference between the strength of the detection signal when the detection signal is transmitted by the transmitter and the strength of the detection signal when the detection signal is received by the receiver as an actual strength difference value, and obtain the actual unfolded length of the flexible screen according to the actual strength difference value and a preset function relationship between the unfolded length of the flexible screen and the strength difference value.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic devices, in particular to an electronic device and a detection method thereof. BACKGROUND

[0002] At present, there are electronic devices that can be stretched, that is, in the process of stretching the electronic device, the area of the flexible screen display interface changes, thereby meeting the various display needs of users. However, the measurement accuracy of the length of the flexible screen will affect the control of the display effect of the display interface, and affect the user experience. SUMMARY

[0003] The present application provides an electronic device with high measurement accuracy. A detection method is also provided.

[0004] In a first aspect, an electronic device is provided, comprising:

[0005] A shell assembly comprising a first shell and a second shell in sliding connection with the first shell;

[0006] A flexible screen connected to the first shell and the second shell and adjusting the length of expansion with the relative movement of the first shell and the second shell;

[0007] A detection device comprising a transmitter for transmitting a detection signal and a receiver for receiving the detection signal; with the relative movement of the first shell and the second shell, the strength of the detection signal received by the receiver changes;

[0008] A processor arranged in the shell assembly and coupled with the detection device; the processor is configured to:

[0009] Obtain the difference between the strength of the detection signal when transmitted by the transmitter and the strength of the detection signal when received by the receiver as the actual strength difference;

[0010] According to the actual strength difference, and the preset function relationship between the length of expansion of the flexible screen and the strength difference, the actual length of expansion of the flexible screen is obtained.

[0011] In a second aspect, the embodiments of the present application provide a detection method, applied to an electronic device, the electronic device comprising a shell assembly, a flexible screen and a detection device, the shell assembly comprising a first shell and a second shell in sliding connection with the first shell; the flexible screen being connected to the first shell and the second shell and adjusting the unfolded length with the relative movement of the first shell and the second shell; the detection device comprising a transmitter for transmitting a detection signal and a receiver for receiving the detection signal; the strength of the detection signal received by the receiver changing with the relative movement of the first shell and the second shell; the detection method comprising the following steps:

[0012] The transmitter transmits a detection signal, and the receiver receives the detection signal;

[0013] Obtaining the difference between the strength of the detection signal when transmitted by the transmitter and the strength of the detection signal when received by the receiver as the actual strength difference;

[0014] According to the actual strength difference and the preset function relationship between the unfolded length and the strength difference of the flexible screen, the actual unfolded length of the flexible screen is obtained.

[0015] In the electronic device of the present application, the transmitter transmits a detection signal, and the receiver receives the detection signal, and the strength of the detection signal received by the receiver changes with the relative movement of the first shell and the second shell. By quantifying the change in the strength of the detection signal, the unfolded length of the flexible screen when the first shell and the second shell move to any position can be determined. Quantifying the change in the strength of the detection signal can greatly improve the detection accuracy, thereby improving the detection accuracy of the unfolded length of the flexible screen, and thereby facilitating the electronic device to adaptively adjust the display interface according to the unfolded length of the flexible screen, thereby improving the display quality of the flexible screen extension process of the electronic device. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0017] Figure 1 The electronic device in the contracted state provided by the embodiments of the present application is shown in the schematic diagram;

[0018] Figure 2 The electronic device in the extended state provided by the embodiments of the present application is shown in the schematic diagram;

[0019] Figure 3 A cross-sectional view of an electronic device according to an embodiment of the present application;

[0020] Figure 4 A cross-sectional view of an electronic device according to another embodiment of the present application;

[0021] Figure 5 A schematic diagram of conduction of a detection signal inside an electronic device according to another embodiment;

[0022] Figure 6 A schematic diagram of conduction of a detection signal inside an electronic device according to another embodiment;

[0023] Figure 7 A schematic diagram of conduction of a detection signal inside an electronic device according to another embodiment;

[0024] Figure 8 A schematic diagram of a step flow of a detection method according to an embodiment. DETAILED DESCRIPTION

[0025] For the purposes of promoting an understanding of the principles of the application, reference will now be made to the embodiments illustrated in the drawings. It is expressly understood that the drawings are for illustration only and that the application can be embodied in many different forms. In the drawings:

[0026] As used herein, "electronic device" means, but is not limited to, a device capable of receiving and / or transmitting a communication signal via any one or more of the following connection means:

[0027] (1) via a wired connection means, such as via a Public Switched Telephone Network (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection;

[0028] (2) via a wireless interface means, such as a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter.

[0029] 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:

[0030] (1) a satellite telephone or a cellular telephone;

[0031] (2) Personal Communications System (PCS) terminal that can combine a cellular radiotelephone with data processing, facsimile, and data communications capabilities;

[0032] (3) a radiotelephone, a pager, Internet / Intranet access, a Web browser, an organizer, a calendar, a Personal Digital Assistant (PDA) equipped with a Global Positioning System (GPS) receiver;

[0033] (4) a conventional laptop and / or palmtop receiver;

[0034] (5) a conventional laptop and / or palmtop radiotelephone transceiver, etc.

[0035] Please refer to Figure 1 and Figure 2 , Figure 1 is a schematic diagram of a contracted state of an electronic device 100 provided by an embodiment of the present application, Figure 2 is a schematic diagram of an extended state of the electronic device 100 provided by an embodiment of the present application.

[0036] The electronic device 100 of the present application comprises a shell assembly 10 and a flexible screen 20, and the flexible screen 20 is connected with the shell assembly 10. The shell assembly 10 is internally formed with a receiving cavity 10a (as shown in Figure 3 ). The electronic device 100 can further comprise a circuit board (not shown) and a battery (not shown), and both the circuit board and the battery are arranged in the receiving cavity 10a of the shell assembly 10. The circuit board can 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 electronic elements on the circuit board. Of course, the electronic device 100 can further comprise a camera module (not shown), and the camera module is in communication connection with 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 comprises but is not limited to a terminal device such as a mobile phone, a tablet computer, etc. or other portable electronic devices 100. In the embodiments of the present application, the mobile phone is taken as an example for description.

[0037] Specifically, the shell assembly 10 comprises a first shell 11 and a second shell 12, and the second shell 12 is slidably connected with the first shell 11. In other words, the second shell 12 is capable of sliding relative to the first shell 11. For example, one of the first shell 11 and the second shell 12 can be provided with a sliding rail, and the other can slide along the sliding rail, so that the first shell 11 and the second shell 12 can slide relative to each other, and the overall size of the shell assembly 10 in the direction of relative sliding of the first shell 11 and the second shell 12 can be increased or reduced. The direction of relative sliding of the first shell 11 and the second shell 12 is defined as the first direction, which is the direction of the X-axis shown in the figure, and the direction perpendicular to the first direction in the plane of relative sliding of the first shell 11 and the second shell 12 is the second direction, which is the direction of the Y-axis shown in the figure. Figure 1 Figure 1

[0038] The flexible screen 20 is connected to the first shell 11 and the second shell 12, and the flexible screen 20 adjusts the unfolded length with the relative movement of the first shell 11 and the second shell 12. It can be understood that the part of the flexible screen 20 exposed outside the shell 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 unfolded length of the flexible screen 20 can be understood as the length dimension of the display interface 20a in the first direction. The unfolded length of the flexible screen 20 increases with the increase of the size of the shell assembly 10 in the first direction, and decreases with the decrease of the size of the shell assembly 10 in the first direction. Thus, by adjusting the relative sliding of the first shell 11 and the second shell 12, the unfolded length of the flexible screen 20 can be adjusted, and the size of the display interface 20a of the flexible screen 20 can also be adjusted.

[0039] It should be noted that the flexible screen 20 is a structure that can be used for display or touch in the electronic device 100, and part of the flexible screen 20 is housed inside the shell assembly 10 and not exposed during the relative sliding of the first shell 11 and the second shell 12, so this part will not display a picture. The display interface 20a is the part of the flexible screen 20 exposed to the first shell 11 and the second shell 12, and when it is lit or displays a picture, the picture displayed by the display interface 20a can be observed by the outside of the electronic device 100. It can be understood that the display interface 20a also changes with the relative movement of the first shell 11 and the second shell 12.

[0040] Please 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 shell 11 and the second shell 12. Specifically, since the display interface 20a is the area defined by the part of the flexible screen 20 exposed to the first shell 11 and the second shell 12, by controlling the display picture of the display interface 20a to be synchronized with the stretching and contracting movement of the shell assembly 10, the overall fluency of the display picture can be good, a visual impact can be generated, and the user experience can be improved.

[0041] In the embodiments of the present application, in combination with Figure 3 and Figure 4 As shown, the electronic device 100 includes a detection device 30 arranged on the shell assembly 10. The detection device 30 is located in the accommodation cavity 10a. The detection device 30 includes a transmitter 31 and a receiver 32, wherein the transmitter 31 is configured to transmit a detection signal, and the receiver 32 is configured to receive the detection signal. With the relative movement of the first shell 11 and the second shell 12, the strength of the detection signal received by the receiver 32 changes. The transmitter 31 and the receiver 32 are connected to the processor, so that the processor can obtain the strength of the detection signal when it is transmitted by the transmitter 31, and can obtain the strength of the detection signal when it is received by the receiver 32, and process the obtained information.

[0042] For the processor, it is arranged on the shell assembly 10 and coupled with the detection device 30 to realize signal transmission. The processor is configured to: obtain the difference between the strength of the detection signal when it is transmitted by the transmitter 31 and the strength of the detection signal when it is received by the receiver 32 as an actual strength difference; and obtain the actual unfolding length of the flexible screen 20 according to the actual strength difference and a preset function relationship between the unfolding length of the flexible screen 20 and the strength difference. It can be understood that in a specific electronic device 100, there is a preset function relationship between the strength difference and the unfolding length of the flexible screen 20. By using the preset function relationship, the actual unfolding length of the flexible screen 20 can be directly obtained according to the detected actual strength difference.

[0043] In the electronic device 100, by making the transmitter 31 transmit the detection signal and the receiver 32 receive the detection signal, and with the relative movement of the first shell 11 and the second shell 12, the strength of the detection signal received by the receiver 32 changes. By quantifying the change of the strength of the detection signal, the unfolding length of the flexible screen 20 when the first shell 11 and the second shell 12 move to any position can be determined. The quantification of the change of the strength of the detection signal can greatly improve the detection accuracy, and further improve the detection accuracy of the unfolding length of the flexible screen 20.

[0044] In this application, the detection signal is either a light wave or a sound wave. When the detection signal is a sound wave, the transmitter 31 is a sound wave transmitter and the receiver 32 is a sound wave receiver. When the detection signal is a light wave, the transmitter 31 is an LED and the receiver 32 is a photosensor.

[0045] 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 propagation of the detection signal between the transmitter 31 and the receiver 32 is a dedicated propagation channel. When the propagation channel is filled with air, the sound wave propagates using air as the propagation medium. Alternatively, the propagation channel can be filled with a medium such as copper or iron that can conduct sound waves.

[0046] In this application, when the detection signal is an acoustic wave, absorbing material can be used around the transmission path of the detection signal to provide shielding, thereby preventing interference from the external environment or acoustic waves generated by other components inside the electronic device 100, resulting in higher detection accuracy. When the detection signal is a light wave, light-absorbing or light-shielding material can be used around the transmission path of the detection signal to prevent interference from ambient light or other light signals inside the electronic device 100, resulting in higher detection accuracy.

[0047] When the detection signal is a light wave, the detection signal can be infrared light or other types of light.

[0048] In addition, the transmitter 31 can continuously transmit the detection signal, or the transmitter 31 can continuously transmit the detection signal during the relative movement of the first housing 11 and the second housing 12, or the transmitter 31 can also intermittently transmit the detection signal at a certain frequency.

[0049] When the detection signal is a light wave, the three-dimensional contour depth image of the object can be obtained by combining it with traditional camera shooting. The intensity of the detection signal can be obtained by calculating the depth information generated when light is emitted and reflected.

[0050] When the detection signal is a sound wave, the intensity of the detection signal can be the loudness of the sound wave.

[0051] like Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, in some embodiments, the electronic device 100 includes an absorption structure 40, which can absorb part of the detection signal during the transmission of the detection signal from the transmitter 31 to the receiver 32, so that the intensity of the detection signal changes significantly from being transmitted to being received, thereby increasing the actual intensity difference and improving the detection accuracy.

[0052] Specifically, such as Figure 3 , Figure 4As shown, the absorption structure 40 is laid on the inner wall of the conduction path of the detection signal. Further, the absorption structure 40 is in the form of a plate with a certain thickness, which is arranged on the inner wall of the conduction path of the detection signal and does not block the conduction of the detection signal, but absorbs part of the detection signal from the periphery of the detection signal. Alternatively, it can be understood that the absorption structure 40 constitutes part or all of the inner wall of the conduction path of the detection signal, thereby absorbing part of the detection signal during the conduction of the detection signal in the conduction path, so as to reduce the intensity of the detection signal received by the receiver 32.

[0053] Specifically, when the detection signal is a sound wave, the material of the absorption structure 40 can be a porous sound-absorbing material such as glass wool or metal fiber cotton. When the detection signal is a light wave, the material of the absorption structure 40 can be a black material such as graphene.

[0054] In the present application, as shown in Figure 3 , Figure 4 , one of the transmitter 31 and the receiver 32 is arranged on the first housing 11, and the other is arranged on the second housing 12. With the relative movement of the first housing 11 and the second housing 12, the length of the conduction path of the detection signal changes. It can be understood that, since the transmitter 31 and the receiver 32 are arranged on the first housing 11 and the second housing 12 respectively, with the relative movement of the first housing 11 and the second housing 12, the distance between the transmitter 31 and the receiver 32 changes, so that the conduction path of the detection signal is shortened or lengthened. In this process, the attenuation degree of the detection signal can be changed by changing the area of the absorption structure 40, and / or the attenuation degree of the detection signal can be changed by changing the conduction distance of the detection signal, so as to change the intensity of the detection signal received by the receiver 32 with the relative movement of the first housing 11 and the second housing 12.

[0055] Specifically, in the present application, as shown in Figure 3 , Figure 4 , the transmitter 31 is arranged on the first housing 11, and the receiver 32 is arranged on the second housing 12. The transmitter 31 and the receiver 32 are arranged in the first direction with a distance therebetween. The transmitter 31 directly transmits the detection signal to the receiver 32, and the absorption structure 40 is laid on the conduction path of the detection signal. With the relative movement of the first housing 11 and the second housing 12, the distance between the transmitter 31 and the receiver 32 changes, and at the same time, the absorption structure 40 can absorb part of the detection signal from the periphery of the detection signal, so as to reduce the intensity of the detection signal received by the receiver 32. At the same time, the degree of absorption of the detection signal by the absorption structure 40 changes. The absorption structure 40 is arranged on the first housing 11. In other embodiments, the absorption structure 40 can also be arranged on the second housing 12.

[0056] As shown in Figure 5 , Figure 6As shown, the absorption structure 40 is arranged on the path of the detection signal from the transmitter 31 to the receiver 32, and the detection signal transmits through the absorption structure 40 to the receiver 32, and part of the detection signal is absorbed by the absorption structure 40 during the transmission, so that the intensity of the detection signal received by the receiver 32 is reduced.

[0057] Specifically, when the detection signal is a sound wave, the material of the absorption structure 40 can be glass wool, metal fiber cotton, or other porous sound-absorbing materials. When the detection signal is a light wave, the absorption structure 40 can be glass containing light-absorbing materials.

[0058] Further, as shown in Figure 5 , Figure 6 , the thickness of the absorption structure 40 changes with the relative movement of the first shell 11 and the second shell 12. It can be understood that the detection signal emitted by the transmitter 31 is absorbed by the receiver 32 after the intensity is reduced by transmitting through the absorption structure 40, and the degree of absorption of the detection signal by the absorption structure 40 changes with the relative movement of the first shell 11 and the second shell 12, so that the intensity of the detection signal received by the receiver 32 changes with the relative movement of the first shell 11 and the second shell 12.

[0059] Further, as shown in Figure 5 , Figure 6 , the absorption structure 40 moves in a predetermined direction with the relative movement of the first shell 11 and the second shell 12, and the absorption structure 40 extends in the predetermined direction and gradually changes in thickness in a wedge-shaped structure. It can be understood that with the relative movement of the first shell 11 and the second shell 12, the absorption structure 40 moves in a predetermined direction, and because the absorption structure 40 has a wedge-shaped structure in the predetermined direction, the different thickness positions of the absorption structure 40 are provided for the detection signal to transmit through, so that the degree of absorption of the detection signal by the absorption structure 40 changes.

[0060] It can be understood that the direction of the relative movement of the first shell 11 and the second shell 12 (i.e. the first direction) and the direction of the movement of the absorption structure 40 can be the same or different. For example, the absorption structure 40 can move in the first direction, or it can also move in the second direction.

[0061] Specifically, one of the first shell 11 and the second shell 12 can be fixed with the transmitter 31 and the receiver 32, and the other can be fixed with the absorption structure 40. As shown in Figure 5As shown, the transmitter 31 and the receiver 32 are both fixedly arranged on the first shell 11, and the transmitter 31 and the receiver 32 are arranged in the second direction with a distance, and the absorbing structure 40 is fixedly arranged on the second shell 12, and the absorbing structure 40 extends in the first direction and gradually changes in thickness to form a wedge-shaped structure. Since the transmitter 31 and the receiver 32 are located in the same shell, the distance between the two does not change with the relative movement of the first shell 11 and the second shell 12, so that the absorbing structure 40 can move in the first direction. Since the thickness of the absorbing structure 40 in the second direction gradually changes in the first direction, the detection signal can pass through the positions with different thicknesses on the absorbing structure 40 during the relative movement of the first shell 11 and the second shell 12, so that the absorption degree of the absorbing structure 40 to the detection signal changes, and thus the unfolded length of the flexible screen 20 when the first shell 11 and the second shell 12 are relatively moved to any position can be determined. In addition, since the absorbing structure 40 extends in the first direction, it can always ensure that part of the absorbing structure 40 is located between the transmitter 31 and the receiver 32 for the detection signal to pass through during the relative movement of the first shell 11 and the second shell 12.

[0062] Specifically, one of the transmitter 31 and the receiver 32 can be arranged on the first shell 11, and the other can be arranged on the second shell 12, and the absorbing structure 40 can be movably arranged on the first shell 11 or the second shell 12 and can move with the relative movement of the first shell 11 and the second shell 12. As shown in FIG. 1, Figure 6 As shown, the transmitter 31 is arranged on the first shell 11, the receiver 32 is arranged on the second shell 12, and the absorbing structure 40 is movably arranged on the first shell 11. During the relative movement of the first shell 11 and the second shell 12, the second shell 12 can act on the absorbing structure 40 through the wedge-shaped block to make the absorbing structure 40 move in the second direction relative to the first shell 11 and the second shell 12. Since the absorbing structure 40 gradually changes in thickness in the second direction to form a wedge-shaped structure, the detection signal can pass through the positions with different thicknesses on the absorbing structure 40, so that the absorption degree of the absorbing structure 40 to the detection signal changes, and thus the unfolded length of the flexible screen 20 when the first shell 11 and the second shell 12 are relatively moved to any position can be determined.

[0063] As shown in FIG. 1, Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown in the present application, the transmitter 31 can directly emit the detection signal towards the receiver 32, and the receiver 32 directly receives the detection signal emitted by the transmitter 31, or the receiver 32 receives the detection signal after passing through the absorbing structure 40, that is, the direction of the detection signal is basically unchanged during the transmission. In other embodiments, as shown in FIG. 2, Figure 7As shown, for the detection signal, it can also be transposed after being transmitted from the transmitter 31 and then transmitted to the receiver 32. This can extend the transmission path of the detection signal, increase the attenuation of the detection signal, reduce the strength of the detection signal received by the receiver 32, and maximize the actual strength difference, thereby improving the detection accuracy.

[0064] like Figure 7 As shown in this application, the electronic device 100 may also include a first commutator 50, through which the detection signal transmitted by the transmitter 31 is commutated and transmitted to the receiver 32.

[0065] It is understood that the transmitter 31 transmits a detection signal toward the first commutator 50, and the detection signal is transmitted to the receiver 32 after being commutated by the first commutator 50. Specifically, there can be one first commutator 50. In this case, the detection signal transmitted by the transmitter 31 only needs to pass through one first commutator 50 to reach the receiver 32. In other embodiments, the number of first commutators 50 can also be a positive integer such as 2, 3, or 4. In this case, the detection signal transmitted by the transmitter 31 needs to pass through multiple first commutators 50 sequentially to reach the receiver 32. This setting can extend the transmission path of the detection signal, maximize the actual intensity difference, and thus improve the detection accuracy. It is understood that the more first commutators 50 there are, the longer the transmission path of the detection signal. However, too many first commutators 50 will also occupy a larger volume, which is not conducive to the miniaturization design of the electronic device 100, and the placement accuracy of each first commutator 50 is also required to be higher.

[0066] It should be noted that, considering the influence of the relative motion between the first housing 11 and the second housing 12 on the transmission path of the detection signal, the arrangement of each first commutator 50 needs to be designed according to the reflection requirements to ensure that the detection signal emitted by the transmitter 31 can be ultimately transmitted to the receiver 32.

[0067] It should be noted that the first commutator 50 can be a reflective structure, such as a mirror, additionally provided on the housing assembly 10 to reflect the detection signal. The first commutator 50 can also be a plane or curved surface with reflective function formed by processing the inner wall surface of the housing assembly 10 that forms the receiving cavity.

[0068] like Figure 7As shown, in another embodiment of the present application, the transmitter 31 is arranged in the first shell 11, and the receiver 32 is arranged in the second shell 12. The transmitter 31 and the receiver 32 are arranged in the first direction and are spaced apart. The distance between the transmitter 31 and the receiver 32 changes with the relative movement of the first shell 11 and the second shell 12. The shell assembly 10 is further provided with a first reversing element 50. The transmitter 31 transmits the detection signal to the first reversing element 50. The first reversing element 50 conducts the detection signal to the receiver 32 after reversing the detection signal. Compared with the scheme of transmitting the detection signal from the transmitter 31 to the receiver 32 directly, the first reversing element 50 can be arranged to lengthen the conduction path of the detection signal.

[0069] On the basis of the foregoing, the shell assembly 10 can be further provided with an absorbing structure 40 in the conduction path of the detection signal, or the absorbing structure 40 can be arranged on the inner side of the conduction path of the detection signal. The absorbing structure 40 absorbs part of the detection signal, thereby reducing the intensity of the detection signal received by the receiver 32. At this time, the absorbing structure 40 can be arranged in the first shell 11 or the second shell 12.

[0070] In the specific electronic device 100, there is a preset function relationship between the intensity difference and the unfolded length of the flexible screen 20. According to the actual intensity difference obtained by detection, the actual unfolded length of the flexible screen 20 can be directly obtained by using the preset function relationship. The preset function relationship can be obtained by the following method:

[0071] In the specific electronic device 100, there is a preset function relationship between the intensity difference and the unfolded length of the flexible screen 20. According to the actual intensity difference obtained by detection, the actual unfolded length of the flexible screen 20 can be directly obtained by using the preset function relationship. The preset function relationship can be obtained by the following method:

[0072] In this application, the controller of the electronic device 100 is coupled to the processor. Specifically, the controller is electrically connected or wirelessly 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 unfolded length of the flexible screen 20. It can be understood that the unfolded length of the flexible screen 20 is equal to the length of the display interface 20a. That is, the display interface 20a displays a corresponding amount of content based on the unfolded amount of the flexible screen 20. By controlling the display interface 20a to maintain consistency with the unfolded length of the flexible screen 20, the controller ensures smooth display of the image on the display interface 20a during the stretching and contracting movement of the flexible screen 20, resulting in a good visual experience. Because the electronic device 100 can effectively improve the detection accuracy of the unfolded length of the flexible screen 20, the adjustment accuracy of the display interface 20a can be ensured when adjusting the length of the display interface 20a according to the unfolded length of the flexible screen 20, thereby improving the image quality.

[0073] Combination Figure 3 , Figure 4 As shown, in this application, the electronic device 100 includes a drive mechanism 70, which is disposed on the housing assembly 10 and is capable of driving the first housing 11 and the second housing 12 to move relative to each other. Specifically, the drive mechanism 70 has a fixed part and a movable part. When the drive mechanism 70 is working, 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.

[0074] The drive mechanism 70 can be a traditional belt drive structure or gear drive structure, or a telescopic drive structure such as a cylinder. The structure of the drive mechanism 70 is not limited here, as long as it can drive the first housing 11 and the second housing 12 to move relative to each other to adjust the unfolded length of the flexible screen 20.

[0075] Specifically, the controller is coupled to the drive mechanism 70, and the controller is configured to control the start and stop of the drive mechanism 70 according to the unfolded length of the flexible screen 20. It can be understood that if the unfolded length of the flexible screen 20 reaches a preset value, the controller controls the drive mechanism 70 to stop operating, thereby preventing the first housing 11 and the second housing 12 from moving relative to each other. If the unfolded length of the flexible screen 20 does not reach the preset value, the controller controls the drive mechanism 70 to continue operating, thereby allowing the first housing 11 and the second housing 12 to continue moving relative to each other, thus changing the unfolded length of the flexible screen 20 until it reaches the preset value.

[0076] like Figure 8 The diagram shown is a flowchart illustrating the detection method provided in an embodiment of this application. The detection method includes:

[0077] Step S101, the transmitter 31 transmits a detection signal, and the receiver 32 receives the detection signal.

[0078] The transmitter 31 can transmit the detection signal to the receiver 32 in a direct or indirect manner.

[0079] Step S102, the difference between the intensity of the detection signal when transmitted by the transmitter 31 and the intensity of the detection signal when received by the receiver 32 is obtained as the actual intensity difference.

[0080] The intensity of the detection signal changes from being transmitted by the transmitter 31 to being received by the receiver 32. By obtaining the difference in the intensity of the detection signal, the intensity change of the detection signal is quantified, which helps to accurately calculate the unfolded length of the flexible screen 20 and improve the detection accuracy.

[0081] Step S103, according to the actual intensity difference and the preset function relationship between the unfolded length of the flexible screen 20 and the intensity difference, the actual unfolded length of the flexible screen 20 is obtained.

[0082] The above detection method, with the relative movement of the first shell 11 and the second shell 12, the detection signal transmitted by the transmitter 31 is received by the receiver 32 after being transmitted to the receiver 32, and its intensity changes. By taking the difference between the intensity when transmitting and the intensity when receiving, the intensity change of the detection signal can be quantified, and the unfolded length of the flexible screen 20 when the first shell 11 and the second shell 12 move to any position can be determined. Because the intensity change of the detection signal can be accurately detected, the detection accuracy is high, so the obtained unfolded length of the flexible screen 20 is also high in accuracy.

[0083] Further, after S103, the following steps can also be included:

[0084] S104, adjusting the length of the display interface 20a of the flexible screen 20 according to the unfolded length of the flexible screen 20.

[0085] Based on the unfolded length of the flexible screen 20, the controller can control the display interface 20a of the flexible screen 20, so that the picture displayed by the flexible screen 20 is exactly consistent with the unfolded length of the flexible screen 20, thereby ensuring the adjustment accuracy of the display interface 20a of the flexible screen 20, so as to improve the picture quality.

[0086] S105, controlling the start and stop of the relative movement of the first shell 11 and the second shell 12 according to the unfolded length of the flexible screen 20.

[0087] According to the unfolding length of the flexible screen 20, the relative movement of the first shell 11 and the second shell 12 can be stopped when the unfolding length of the flexible screen 20 reaches the preset value, and the relative movement of the first shell 11 and the second shell 12 is changed to change the unfolding length of the flexible screen 20 when the unfolding length of the flexible screen 20 does not reach the preset value, so that the unfolding length of the flexible screen 20 can be accurately adjusted.

[0088] In the above embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0089] The technical features of the above-described embodiments can be combined arbitrarily, and in order to make the description simple, not all possible combinations of the technical features in the above-described embodiments are described, however, as long as the combinations of the technical features do not exist contradictory, it should be considered as the scope of the present application.

[0090] The above-described embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it should not be understood as a limitation on the patent application scope. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. An electronic device, comprising: The electronic device comprises: a shell assembly comprising a first shell and a second shell in sliding connection with the first shell; a flexible screen connected to the first shell and the second shell and adjusting an unfolded length according to relative movement of the first shell and the second shell; a detection device comprising a transmitter for transmitting a detection signal and a receiver for receiving the detection signal; an intensity of the detection signal received by the receiver changes according to relative movement of the first shell and the second shell; a processor arranged in the shell assembly and coupled with the detection device, and configured to: obtain a difference between an intensity of the detection signal when transmitted by the transmitter and an intensity of the detection signal when received by the receiver as an actual intensity difference; obtain an actual unfolded length of the flexible screen according to the actual intensity difference and a preset function relationship between the unfolded length and the intensity difference of the flexible screen; the electronic device comprises an absorption structure arranged on a path of the detection signal from the transmitter to the receiver, the detection signal is transmitted to the receiver after passing through the absorption structure, and the absorption structure can absorb part of the detection signal during transmission of the detection signal from the transmitter to the receiver.

2. The electronic device of claim 1, wherein, The detection signal is a sound wave, and the absorption structure is made of glass wool or metal fiber cotton; or the detection signal is a light wave, and the absorption structure is made of graphene.

3. The electronic device of claim 1 or 2, wherein, The absorption structure is laid on an inner wall of a transmission channel of the detection signal.

4. The electronic device of claim 3, wherein, One of the transmitter and the receiver is arranged in the first shell, and the other is arranged in the second shell, and a length of a transmission path of the detection signal changes according to relative movement of the first shell and the second shell.

5. The electronic device of claim 1, wherein, A thickness of the absorption structure through which the detection signal passes changes according to relative movement of the first shell and the second shell.

6. The electronic device of claim 5, wherein, The absorption structure moves in a predetermined direction according to relative movement of the first shell and the second shell, and the absorption structure extends in the predetermined direction and gradually changes in thickness in a wedge-shaped structure.

7. The electronic device of claim 6, wherein, One of the first shell and the second shell is fixedly provided with the transmitter and the receiver, and the other is fixedly provided with the absorption structure; or One of the transmitter and the receiver is arranged in the first shell, and the other is arranged in the second shell, and the absorption structure is movably arranged in the first shell or the second shell and can move according to relative movement of the first shell and the second shell.

8. The electronic device of claim 1, wherein, The electronic device comprises a first reversing member, and the detection signal transmitted by the transmitter is transmitted to the receiver through the first reversing member.

9. The electronic device of claim 8, wherein, The first reversing member is a reflecting surface capable of reflecting the detection signal.

10. The electronic device of claim 1, wherein, The detection signal is a sound wave; or the detection signal is a light wave.

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

12. The electronic device of claim 11, wherein, The electronic device comprises a driving mechanism arranged in the shell assembly and capable of driving the first shell and the second shell to move relative to each other; the controller is coupled with the driving mechanism, and the controller is configured to: controlling start and stop of the driving mechanism according to the unfolded length of the flexible screen.

13. A detection method applied to electronic equipment, characterized in that, The electronic device comprises a shell assembly, a flexible screen and a detection device, the shell assembly comprises a first shell and a second shell connected with the first shell in a sliding manner; the flexible screen is connected with the first shell and the second shell and adjusts the unfolded length according to the relative movement of the first shell and the second shell; the detection device comprises a transmitter for transmitting a detection signal and a receiver for receiving the detection signal; With the relative movement of the first shell and the second shell, the strength of the detection signal received by the receiver changes, the electronic device comprises an absorption structure arranged on the path of the detection signal from the transmitter to the receiver, the detection signal is transmitted to the receiver after passing through the absorption structure, and the absorption structure can absorb part of the detection signal during the transmission of the detection signal from the transmitter to the receiver; the detection method comprises the following steps: The transmitter transmits a detection signal, and the receiver receives the detection signal; obtaining the difference between the strength of the detection signal when it is transmitted by the transmitter and the strength of the detection signal when it is received by the receiver as the actual strength difference; According to the actual strength difference and the preset function relationship between the unfolded length of the flexible screen and the strength difference, the actual unfolded length of the flexible screen is obtained.

14. The detection method according to claim 13, characterized in that, After the step of obtaining the actual unfolded length of the flexible screen according to the actual strength difference and the preset function relationship between the unfolded length of the flexible screen and the strength difference, the following steps are further included: adjusting the length of the display interface of the flexible screen according to the unfolded length of the flexible screen; controlling start and stop of the first shell and the second shell relative movement according to the actual unfolded length of the flexible screen.

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