A display apparatus and a control method of a display apparatus

Abstract

The application discloses a display device and a control method thereof. The display device comprises a display, a controller and an image acquisition module. The controller sends a control instruction to the image acquisition module, determines the position of the image acquisition module according to a detection signal of a detection component and receives external image information sent by the image acquisition module. The image acquisition module comprises an image acquisition component, a detection component, a lifting component and an image processing component. The lifting component comprises a shielding part. The shielding part shields light signals emitted by a transmitter of a first detection unit or a second detection unit during lifting, so that a receiver of the first detection unit or the second detection unit generates a detection signal based on the acquired light signals. The image processing component controls the lifting component to lift and controls the image acquisition component to acquire external image information according to the control instruction sent by the controller. Some embodiments of the application improve the accuracy of position detection of the image acquisition component.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display. More particularly, it relates to a display device and a control method of the display device. BACKGROUND

[0002] The intelligent display device has begun to penetrate into people's life, for example, the functions of network television, digital television and video telephone are gradually applied in the display device, and the implementation of these functions all need to be implemented on the display device. Based on the demand for appearance and privacy protection, the image acquisition component such as camera provided by the display device is generally designed as a lifting type, and the user can control the camera to be stretched out of the display device when using the camera and hidden in the display device when not using the camera. Therefore, the specific position of the camera needs to be sensed during the lifting process, so as to control the lifting or lowering.

[0003] In the related art, the sensing of the position of the image acquisition module can be achieved by the step accumulation mode, that is, the lifting is achieved by setting a specific number of steps of the stepping motor. However, the more the number of steps is, the longer the stroke is, and the greater the error is, which leads to the problem that the lifting position is too much to affect the appearance or the lifting position is insufficient to affect the image field of view. The position can also be measured by the infrared reflection measurement mode, but this scheme is realized by reflection. Due to the difference in the size of the reflection surface, the difference in the intensity of the transmitter and the difference in the sensitivity of the receiver, there is a great difference between different individuals, which leads to a large consistency deviation, and thus the scheme cannot be used for accurate position detection. The position can also be measured by the Hall sensor sensing magnetic force mode, but due to the high sensitivity of the Hall detection and the difficulty in controlling the consistency of the magnetic force of the magnet, the position detection deviation is also large. SUMMARY

[0004] In order to solve the problems described in the background, some embodiments of the present application provide a display device and a control method of the display device, which can accurately sense the position of the image acquisition component, reduce the measurement difficulty and improve the accuracy of the position detection of the image acquisition component.

[0005] The technical scheme provided by the present application is as follows:

[0006] In a first aspect, the present application provides a display device, comprising:

[0007] a display;

[0008] a controller; the controller is electrically connected with the display and the image acquisition module respectively; the controller is configured to send a control instruction to the image acquisition module, determine the position of the image acquisition component according to the detection signal of the detection component and receive the external image information sent by the image acquisition module;

[0009] An image acquisition module, which is specifically configured to include:

[0010] An image acquisition component for acquiring external image information;

[0011] A detection component including a first detection unit and a second detection unit; the first detection unit and the second detection unit each include a transmitter and a receiver; the first detection unit is located at the top of the lifting path of the lifting component, and the second detection unit is located at the bottom of the lifting path of the lifting component;

[0012] A lifting component, the image acquisition component is installed on the lifting component, the lifting component drives the image acquisition component to perform lifting movement; the lifting component includes a shielding part; the shielding part is used to shield the light signal emitted by the transmitter of the first detection unit or the second detection unit during lifting, so that the receiver of the first detection unit or the second detection unit generates a detection signal based on the acquired light signal;

[0013] An image processing component, which is electrically connected with the image acquisition component, the detection component and the lifting component respectively, and is used to control the lifting component to lift and control the image acquisition component to acquire external image information according to the control instruction sent by the controller.

[0014] In a second aspect, the present application provides a control method of a display device, which is suitable for the display device as described in the first aspect, and includes:

[0015] Obtaining the detection signal of the detection component;

[0016] Determining the position of the image acquisition component according to the detection signal.

[0017] According to the technical scheme, the display device provided by some embodiments of the present application is provided with a shielding part in the lifting assembly, the shielding part shields the light signal emitted by the emitter of the second detection unit when the shielding part is at the bottom of the lifting path, and does not shield the light signal emitted by the emitter of the second detection unit when the shielding part is not at the bottom of the lifting path, so that the detection signals generated by the receiver of the second detection unit are different, and thus the controller can determine whether the image acquisition assembly is located at the bottom of the lifting path according to the detection signals; and the shielding part shields the light signal emitted by the emitter of the second detection unit when the shielding part is at the top of the lifting path, and does not shield the light signal emitted by the emitter of the second detection unit when the shielding part is not at the top of the lifting path, so that the detection signals generated by the receiver of the first detection unit are different, and thus the controller can determine whether the image acquisition assembly is located at the top of the lifting path according to the detection signals, thereby avoiding the problem that the position of the image acquisition assembly is not accurately determined by the step measurement, reflection measurement or magnetic force measurement in the prior art, and the accuracy of the position detection of the image acquisition assembly is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the present application, the drawings required in the embodiments will be briefly introduced below, and obviously, other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0019] Figure 1 A schematic diagram of an operation scene between a display device and a control device;

[0020] Figure 2 A configuration block diagram of a control device;

[0021] Figure 3 A configuration block diagram of a display device;

[0022] Figure 4 An interface schematic diagram of a video on demand program;

[0023] Figure 5 A side view of a use scene of a display device;

[0024] Figure 6 A structural schematic diagram of a display device according to an exemplary embodiment of the present application;

[0025] Figure 7 A circuit structural schematic diagram of an image acquisition module according to an exemplary embodiment of the present application;

[0026] Figure 8 A layout schematic diagram of a lifting assembly and a detection assembly according to an exemplary embodiment of the present application;

[0027] Figure 9 A top view schematic diagram of a first detection unit according to an exemplary embodiment of the present application is shown in the figure.

[0028] Figure 10 A side view schematic diagram of a first detection unit according to an exemplary embodiment of the present application is shown in the figure.

[0029] Figure 11 A layout schematic diagram of another lifting assembly and detection assembly according to an exemplary embodiment of the present application is shown in the figure.

[0030] Figure 12 A control method of a display device according to an exemplary embodiment of the present application is shown in the figure.

[0031] Figure 13 A specific flowchart of a controller controlling initialization of an image acquisition module according to an exemplary embodiment of the present application is shown in the figure.

[0032] Figure 14 A specific flowchart of a controller controlling rising of an image acquisition module according to an exemplary embodiment of the present application is shown in the figure.

[0033] Figure 15 A specific flowchart of a controller controlling falling of an image acquisition module according to an exemplary embodiment of the present application is shown in the figure.

[0034] Figure 16 A specific flowchart of another controller controlling falling of an image acquisition module according to an exemplary embodiment of the present application is shown in the figure. DETAILED DESCRIPTION

[0035] In order to make the purpose and implementation of the present application more clear, the following will combine the figures in the exemplary embodiments of the present application to clearly and completely describe the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only some of the embodiments of the present application, but not all of the embodiments.

[0036] It should be noted that the brief description of the terms in the present application is only for the convenience of understanding the following described embodiments, and is not intended to limit the embodiments of the present application. Unless otherwise specified, these terms should be understood according to their ordinary and general meanings.

[0037] The terms "first", "second", "third" and the like in the specification and claims of the present application and the above-mentioned figures are used to distinguish similar or similar objects or entities, and do not necessarily mean to limit the specific order or sequence, unless otherwise noted. It should be understood that the terms used in this way can be interchanged under appropriate circumstances.

[0038] The terms "comprises", "comprising", "includes", "including", "has", "having" and their conjugates, mean "including but not limited to", and are used to indicate that the list of elements or the list of components that it follows are not exhaustive and that other elements or components can be included or be utilized.

[0039] The display device provided by the embodiments of the present application can have various implementation forms, for example, can be a television, a smart television, a monitor, an electronic bulletin board, an electronic table, etc. Figure 1 And Figure 2 is a specific implementation of the display device of the present application.

[0040] Figure 1 is a schematic diagram of an operation scenario between a display device and a control device according to an exemplary embodiment of the present application. As shown in Figure 1 , a user can operate the display device 200 through the smart device 300 or the control device 100.

[0041] In some embodiments, the control device 100 can be a remote controller, and the communication between the remote controller and the display device 200 can include infrared protocol communication or Bluetooth protocol communication, and other short-distance communication modes, to control the display device 200 in a wireless or wired manner. The user can input user instructions through buttons on the remote controller, voice input, control panel input, etc., to control the display device 200.

[0042] In some embodiments, the smart device 300 (such as a mobile terminal, a tablet computer, a computer, a notebook computer, etc.) can also be used to control the display device 200. For example, an application running on the smart device is used to control the display device 200.

[0043] In some embodiments, the display device 200 can not receive instructions using the smart device or the control device described above, but can receive user control through touch or gestures, etc.

[0044] In some embodiments, the display device 200 can also be controlled in a manner other than the control device 100 and the smart device 300, for example, can directly receive user voice instructions through a voice instruction acquisition module configured inside the display device 200, or can receive user voice instructions through a voice control device arranged outside the display device 200.

[0045] In some embodiments, the display device 200 also communicates data with the server 400. The display device 200 can be communicatively connected through a local area network (LAN), a wireless local area network (WLAN), and other networks. The server 400 can provide various content and interactions to the display device 200. The server 400 can be a cluster or multiple clusters, and can include one or more types of servers.

[0046] Figure 2 A configuration block diagram of a control device according to an exemplary embodiment of the present application is shown. As shown, the control device 100 includes a controller 110, a communicator 130, a user input / output interface 140, a memory, a power supply. The control device 100 can receive input operation instructions from a user, the communicator 130 is communicatively connected with the display device, and the control device 100 converts the operation instructions into instructions that the display device 200 can recognize and respond to, thereby playing a role of an intermediary in interactions between the user and the display device 200. Figure 2

[0047] Figure 3 A configuration block diagram of a display device according to an exemplary embodiment of the present application is shown. As shown, the display device 200 includes a tuner and demodulator 210, a communicator 220, a detector 230, an external device interface 240, a controller 250, a display 260, an audio output interface 270, a memory, a power supply, and at least one of a user interface. Figure 3

[0048] In some embodiments, the controller 250 includes a processor, a video processor, an audio processor, a graphics processor, a RAM, a ROM, a first interface to an n-th interface for input / output.

[0049] The display 260 is used to display an interface, including a display component for presenting a picture, and a driving component for driving image display, a component for receiving an image signal originating from the output of the controller, and displaying video content, image content, and a menu control interface, and a user control UI interface.

[0050] The communicator 220 is a component for communicating with external devices or servers according to various communication protocol types. For example, the communicator can include at least one of a Wifi module, a Bluetooth module, a wired Ethernet module, other network communication protocol chips or near field communication protocol chips, and an infrared receiver. The display device 200 can be communicatively connected with the control device 100 or the server 400 through the communicator 220, i.e., to establish transmission and reception of control signals and data signals.

[0051] The user interface can be used to receive control signals of the control device 100 (e.g., an infrared remote controller, etc.).

[0052] ​​The detector 230 is configured to acquire signals of an external environment or interaction with the external environment. For example, the detector 230 includes a light receiver configured to acquire an intensity of ambient light, a sensor configured to acquire an intensity of ambient light, or an image acquisition module including an image acquisition component such as a camera configured to acquire an external environment scene, a user attribute, or a user interaction gesture. Alternatively, the detector 230 includes a sound acquisition component such as a microphone configured to acquire an external sound.

[0053] The external device interface 240 can include, but is not limited to, any one or more of a high-definition multimedia interface (HDMI), an analog or digital high-definition component input interface (component), a composite video input interface (CVBS), a USB input interface (USB), an RGB port, or the like. The external device interface 240 can also include a composite input / output interface formed by a plurality of interfaces described above.

[0054] The tuner and demodulator 210 receives broadcast television signals through wired or wireless reception and demodulates audio / video signals and EPG data signals from the received broadcast television signals.

[0055] In some embodiments, the controller 250 and the tuner and demodulator 210 can be located in different devices. For example, the tuner and demodulator 210 can be located in an external device such as an external set-top box, which is separate from the main device in which the controller 250 is located.

[0056] The controller 250 controls the operation of the display device 200 and responds to user operations by executing various software control programs stored in the memory. The controller 250 controls the overall operation of the display device 200. For example, in response to receiving a user command to select a UI object displayed on the display 260, the controller 250 can perform an operation related to the object selected by the user command.

[0057] In some embodiments, the controller 250 includes at least one of a central processing unit (CPU), a video processor, an audio processor, a graphics processing unit (GPU), a RAM (Random Access Memory), a ROM (Read-Only Memory), a first to nth interface for input / output, a communication bus, or the like.

[0058] The user can input a user command through a graphic user interface (GUI) displayed on the display 260, and the user input interface receives the user input command through the graphic user interface (GUI). Alternatively, the user can input a user command through input of a specific sound or gesture, and the user input interface receives the user input command by recognizing the sound or gesture through a sensor.

[0059] A "user interface" is a medium interface for interaction and information exchange between an application program or an operating system and a user, which realizes conversion between an internal form of information and a form acceptable by the user. A commonly used form of the user interface is a graphic user interface (GUI), which refers to a user interface related to computer operation displayed in a graphic manner. The graphic user interface can be an interface element such as an icon, a window, a control, and the like displayed in a display of a display device, and the control can include visual interface elements such as an icon, a button, a menu, a tab, a text box, a dialog box, a status bar, a navigation bar, a widget, and the like.

[0060] Figure 4 A schematic diagram of an interface of a video on demand program according to an exemplary embodiment of the present application is shown. In some embodiments, the display device can directly enter a preset interface of the video on demand program after being started, and the interface of the video on demand program can include at least a navigation bar 310 and a content display area below the navigation bar 310, as shown in FIG. 3. The content displayed in the content display area changes with the change of a selected control in the navigation bar. Programs in the application layer can be integrated in the video on demand program and displayed through a control in the navigation bar, or further displayed after the application control in the navigation bar is selected. Figure 4

[0061] In some embodiments, the display device can directly enter a display interface of a last selected signal source or a signal source selection interface after being started, and the signal source can be at least one of a preset video on demand program, an HDMI interface, a live television interface, and the like. After the user selects different signal sources, the display can display content obtained from different signal sources.

[0062] In some embodiments, the hardware or software architecture can be based on the above-described embodiments, and in some embodiments, can be based on other similar hardware or software architectures, as long as the technical solutions of the present application can be implemented.

[0063] The scenarios to which the present application is applied and the problems existing in the scenarios will be described below with reference to the accompanying drawings.

[0064] In some embodiments, the display device 200 includes:

[0065] The display 260 is configured to display an image picture.​

[0066] The image acquisition module 230 is configured to acquire external image information.

[0067] The controller 250 is connected with the display 260 and the image acquisition module 230 respectively.

[0068] Figure 5 Fig. 2 is a side view of a use scene of the display device, in combination with Figure 3 and Figure 5 The image acquisition module 230 includes an image acquisition component, for example, a camera. The image acquisition module 230 is connected with the display 260 through a connecting device. When the user needs to use the image acquisition component or an application program uses the image acquisition component, the image acquisition component can be lifted out of the display 260. When the image acquisition component is not needed, the image acquisition component can be lowered into the rear shell of the display 260 to avoid damage to the image acquisition component.

[0069] In the related art, the sensing of the position of the image acquisition module can be achieved by a step accumulation scheme. A specific number of steps of a stepping motor is set to achieve lifting and lowering. This scheme is achieved by using the relatively fixed step length l of the stepping motor. Since the lifting stroke L is relatively fixed, the number of steps S is the ratio of the two values of L and l: S = L / l. Since the step length value is a theoretical value, in engineering applications, the step lengths l of different stepping motors are not the same, which will cause an error ΔL. Therefore, after S steps of movement, an error ΔL is generated: ΔL = L*ΔL / l. Therefore, the more the number of steps, the longer the stroke, and the greater the error, which leads to too many lifting positions affecting the appearance or not enough lifting positions affecting the image field of view.

[0070] In addition, an infrared reflection measurement method is usually used. For example, detectors including infrared emitters and receivers are respectively arranged at the top and bottom of the lifting controller, and a reflection module is arranged on the transmission rod. The reflection module reflects the infrared signals emitted by the infrared sensor and reflects them to the receivers at their respective positions. After receiving the signals, the receiver level changes, which can determine that the camera has reached the top or bottom. However, this scheme is achieved by reflection. Due to the size difference of the reflection surface, the intensity difference of the emitter, and the sensitivity difference of the receiver, there will be a large difference between different individuals, resulting in a large consistency deviation. Therefore, it cannot be used for accurate position detection.

[0071] The top and bottom of the lifting controller can also be respectively provided with Hall sensors, and a magnet is arranged on the transmission rod. When the magnet is close to or far away from the Hall sensor, the output value of the Hall sensor changes, which achieves position detection. However, the Hall detection has high sensitivity, and it is difficult to control the consistency of the magnetic force of the magnet. Therefore, the position detection deviation is also large.

[0072] To address the aforementioned problems, this application provides a display device. Figure 6 This is a schematic diagram illustrating the structure of a display device according to an exemplary embodiment of the present invention, such as... Figure 6 As shown, the display device includes:

[0073] Monitor 260;

[0074] Controller 250; Controller 250 is electrically connected to display 260 and image acquisition module 230 respectively; Controller 250 is configured to send control commands to image acquisition module 230, determine the location of image acquisition component 1 according to the detection signal of detection component, and receive external image information sent by image acquisition module 230;

[0075] Image acquisition module 230, specifically configured to include:

[0076] Image acquisition component 1 is used to acquire external image information;

[0077] The detection component includes a first detection unit 21 and a second detection unit 22; both the first detection unit 21 and the second detection unit 22 include a transmitter 211 and a receiver 212; the first detection unit 21 is located at the top of the lifting path of the lifting component 3, and the second detection unit 22 is located at the bottom of the lifting path of the lifting component 3.

[0078] The lifting assembly 3 and the image acquisition assembly 1 are mounted on the lifting assembly 3. The lifting assembly 3 drives the image acquisition assembly 1 to move up and down. The lifting assembly 3 includes a blocking part 31. The blocking part 31 is used to block the light signal emitted by the transmitter 211 of the first detection unit 21 or the second detection unit 22 during the lifting process, so that the receiver 212 of the first detection unit 21 or the second detection unit 22 generates a detection signal based on the acquired light signal.

[0079] Image processing component 4 is electrically connected to image acquisition component 1, detection component and lifting component 3 respectively. Image processing component 4 is used to control the lifting component 3 to lift and lower according to the control command sent by controller 250 and to control image acquisition component 1 to acquire external image information.

[0080] Specifically, such as Figure 6 As shown, the controller 250 is electrically connected to the display 260 and the image acquisition module 230 respectively. The controller 250 can send control commands to the image acquisition module 230 according to user needs. The image processing component 4 controls the lifting component 3 to lift and lower according to the control commands, and controls the image acquisition component 1 to acquire external image information. Figure 6 The example illustrates the transmission of control commands between the controller 250 and the image acquisition module 230 via USB.

[0081] In order to realize the lifting of the image acquisition assembly 1, the image acquisition assembly 1 can be installed on the lifting assembly 3, and the lifting assembly 3 drives the image acquisition assembly 1 to perform the lifting movement. In order to determine the position of the image acquisition assembly 1 in the lifting process, a detection assembly can be installed in the image acquisition module 230, and the detection assembly includes a first detection unit 21 and a second detection unit 22. The first detection unit 21 and the second detection unit 22 each include a transmitter 211 and a receiver 212. The first detection unit 21 is arranged at the top of the lifting path of the lifting assembly 3, and the second detection unit 22 is arranged at the bottom of the lifting path of the lifting assembly 3.

[0082] The lifting assembly 3 includes a shielding portion 31. Exemplarily, the shielding portion 31 shields the light signal emitted by the transmitter 211 of the first detection unit 21 when the lifting assembly 3 is located at the bottom of the lifting path. When the receiver 212 of the first detection unit 21 does not receive the light signal, a detection signal is generated, for example, a first preset signal. The controller 250 determines that the image acquisition assembly 1 is located at the bottom of the lifting path according to the first preset signal. When the image acquisition assembly 1 rises and the shielding portion 31 no longer shields the light signal emitted by the transmitter 211 of the first detection unit 21, the detection signal generated when the receiver 212 of the first detection unit 21 receives the light signal changes from the first preset signal to a second preset signal. The controller 250 determines that the image acquisition assembly 1 has risen according to the second preset signal.

[0083] The shielding portion 31 shields the light signal emitted by the transmitter 211 of the second detection unit 22 when the lifting assembly 3 is located at the top of the lifting path. When the receiver 212 of the second detection unit 22 does not receive the light signal, a detection signal is generated, for example, a first preset signal. The controller 250 determines that the image acquisition assembly 1 is located at the top of the lifting path according to the first preset signal. When the image acquisition assembly 1 rises and the shielding portion 31 no longer shields the light signal emitted by the transmitter 211 of the second detection unit 22, the detection signal generated when the receiver 212 of the second detection unit 22 receives the light signal changes from the first preset signal to a second preset signal. The controller 250 determines that the image acquisition assembly 1 has descended according to the second preset signal.

[0084] It should be noted that the first preset signal can be, for example, a high-level signal, and the second preset signal can be a low-level signal. The specific forms of the first preset signal and the second preset signal can be set according to actual use requirements, and some embodiments of the present application do not limit this.

[0085] In addition, Figure 6The image acquisition module 230 also exemplarily shows that the image acquisition assembly power supply chip 8 and the power management chip 7 are included in the image acquisition module 230, and the specific working principles of the image acquisition assembly power supply chip 8 and the power management chip 7 are well known to those skilled in the art, and some embodiments of the present application will not be described here.

[0086] Figure 6 The lifting assembly 3 also exemplarily shows that the transmission rod 32 is included in the lifting assembly 3, and the shielding part 31 is located on the transmission rod 32, and the shielding part 31 rises and falls with the transmission rod 32 and shields the light signal emitted by the transmitter 211 of the first detection unit 21 or the second detection unit 22 during the rising and falling process. The motor 6 driving assembly 5 and the motor 6 are also included in the image acquisition module 230. Exemplarily, when the image processing assembly 4 receives the rising control instruction issued by the controller 230, the rising control instruction is converted into a motor rising control signal and transmitted to the motor 6 driving assembly 5, and the motor 6 driving assembly 5 controls the motor 6 to rotate in the forward direction, thereby driving the transmission rod 32 to push the image acquisition assembly 1 to rise. When the image processing assembly 4 receives the falling control instruction issued by the controller 230, the falling control instruction is converted into a motor falling control signal and transmitted to the motor 6 driving assembly 5, and the motor 6 driving assembly 5 controls the motor 6 to rotate in the reverse direction, thereby driving the transmission rod 32 to push the image acquisition assembly 1 to fall.

[0087] Some embodiments of the present application set the shielding part 31 in the lifting assembly 3, shield the light signal emitted by the transmitter 211 of the second detection unit 22 when the shielding part 31 is at the bottom of the lifting path, and do not shield the light signal emitted by the transmitter 211 of the second detection unit 22 when the shielding part 31 is not at the bottom of the lifting path, so that the detection signal generated by the receiver 212 of the second detection unit 22 is different, thereby enabling the controller 250 to determine whether the image acquisition assembly 1 is located at the bottom of the lifting path according to the detection signal, and shielding the light signal emitted by the transmitter 211 of the second detection unit 22 when the shielding part 31 is at the top of the lifting path, and not shielding the light signal emitted by the transmitter 211 of the second detection unit 22 when the shielding part 31 is not at the top of the lifting path, so that the detection signal generated by the receiver 212 of the first detection unit 21 is different, thereby enabling the controller 250 to determine whether the image acquisition assembly 1 is located at the top of the lifting path according to the detection signal, avoiding the need to determine the position of the image acquisition assembly 1 by reflecting the signal in the prior art, and due to the influence of the reflector and the receiver 212, the reflected signal is inaccurate, or due to the step calculation error, the position of the image acquisition assembly 1 is not accurately determined, thereby improving the accuracy of the position detection of the image acquisition assembly 1.

[0088] Figure 7 The present application shows a circuit structure schematic diagram of an image acquisition module according to an exemplary embodiment. In some embodiments, the image acquisition module is combined with the image processing assembly 4 to form an image acquisition and processing system 200. Figure 6 andFigure 7 The image acquisition module 230 further comprises a first switch unit 51 and a second switch unit 52.

[0089] The first switch unit 51 is electrically connected with the transmitter 211 of the first detection unit 21 and the image processing assembly 4 respectively; the second switch unit 52 is electrically connected with the transmitter 211 of the second detection unit 22 and the image processing assembly 4 respectively.

[0090] The image processing assembly 4 is configured to control the opening and closing of the transmitter 211 of the first detection unit 21 through the first switch unit 51; the image processing assembly 4 is configured to control the opening and closing of the transmitter 211 of the second detection unit 22 through the second switch unit 52.

[0091] Specifically, Figure 7 The first switch unit 51 and the second switch unit 52 are both NPN triodes, the base of the NPN triode of the first switch unit 51 is electrically connected with the first control signal output terminal GPIO1 of the image processing assembly 4, and the base of the NPN triode of the second switch unit 52 is electrically connected with the second control signal output terminal GPIO2 of the image processing assembly 4. According to the conduction characteristics of the NPN triode, when the first control signal output terminal GPIO1 of the image processing assembly 4 outputs a low-level control signal, the NPN triode of the first switch unit 51 is in a conduction state, and when the second control signal output terminal GPIO2 of the image processing assembly 4 outputs a low-level control signal, the NPN triode of the second switch unit 52 is in a conduction state.

[0092] When the image processing assembly 4 outputs a low-level control signal to the first switch unit 51 to control the conduction of the first switch unit 51, so that the transmitter 211 of the first detection unit 21 is turned on, the transmitter 211 emits a light signal to the receiver 212. When the shielding part 31 shields the light signal emitted by the transmitter 211 of the first detection unit 21, the receiver 212 of the first detection unit 21 cannot obtain the light signal, so that the detection signal STA1_DET generated is, for example, a first preset signal, and the detection signal STA1_DET is sent to the controller 250. The controller 250 receives the first preset signal to determine that the image acquisition assembly 1 is located at the top of the lifting path. When the shielding part 31 does not shield the light signal emitted by the transmitter 211 of the first detection unit 21, the receiver 212 of the first detection unit 21 obtains the light signal, and the detection signal STA1_DET generated is, for example, a second preset signal, and the detection signal STA1_DET is sent to the controller 250. The controller 250 determines that the image acquisition assembly 1 has been lowered according to the second preset signal.

[0093] When the image processing component 4 outputs a low-level control signal to the second switch unit 52, so that the emitter 211 of the second detection unit 22 is turned on, the emitter 211 emits a light signal to the receiver 212. When the shielding part 31 shields the light signal emitted by the emitter 211 of the second detection unit 22, the receiver 212 of the second detection unit 22 cannot obtain the light signal, so that the detection signal STA2_DET generated is, for example, a first preset signal, and the detection signal STA2_DET is sent to the controller 250. The controller 250 receives a low-level signal and determines that the image acquisition component 1 is located at the bottom of the lifting path. When the shielding part 31 does not shield the light signal emitted by the emitter 211 of the second detection unit 22, the receiver 212 of the second detection unit 22 obtains the light signal, and the detection signal STA2_DET generated is, for example, a second preset signal and is sent to the controller 250. The controller 250 determines that the image acquisition component 1 has been lifted according to the second preset signal.

[0094] In some embodiments, as shown in Figure 7 the emitter 211 of the first detection unit 21 includes a first light-emitting diode; the receiver 212 of the first detection unit 21 includes a first phototriode; a first end of the first light-emitting diode is electrically connected to the first switch unit 51, a second end of the first light-emitting diode and a second end of the first phototriode are grounded, and a first end of the first phototriode is connected to a power signal and is electrically connected to a first detection end of the image processing component 4;

[0095] the emitter 211 of the second detection unit 22 includes a second light-emitting diode; the receiver 212 of the second detection unit 22 includes a second phototriode; a first end of the second light-emitting diode is electrically connected to the second switch unit 52, a second end of the second light-emitting diode and a second end of the second phototriode are grounded, and a first end of the second phototriode is connected to a power signal and is electrically connected to a second detection end of the image processing component 4.

[0096] Specifically, as shown in Figure 7 after the first switch unit 51 is turned on, the first light-emitting diode emits a light signal. When the shielding part 31 does not shield the light signal, the first phototriode is turned on after receiving the light signal, and the first phototriode is equivalent to being directly short-circuited to the ground. The first detection end of the image processing component 4 receives a detection signal STA1_DET which is a low-level signal. When the shielding part 31 shields the light signal emitted by the first light-emitting diode, although there is light, the light cannot be irradiated onto the first phototriode, and the first phototriode cannot be turned on. Therefore, the first end of the second phototriode is connected to the power signal through a pull-up resistor. At this time, the first detection end of the image processing component 4 receives a detection signal STA1_DET which is a high-level signal.

[0097] It can be understood that the detection principle of the second detection unit 22 can be understood with reference to the first detection unit 21, and some embodiments of the present application will not be described here.

[0098] It should be noted that the first resistor R1, the second resistor R2, the third resistor R3 and the fourth resistor R4 in the detection assembly are pull-up resistors, and the fifth resistor R5 and the sixth resistor R6 are current limiting resistors. The specific working principle is well known to those skilled in the art, and some embodiments of the present application will not be described here.

[0099] Figure 8 A layout schematic diagram of a lifting assembly and a detection assembly according to an exemplary embodiment of the present application is shown, Figure 9 A top view structural schematic diagram of a first detection unit according to an exemplary embodiment of the present application is shown, Figure 10 A side view structural schematic diagram of a first detection unit according to an exemplary embodiment of the present application is shown, in some embodiments, in combination with Figure 8 to Figure 10 The upper edge of the shielding part 31 when rising to the top of the lifting path is flush with the upper edge of the first detection unit 21.

[0100] Specifically, in combination with Figure 8 to Figure 10 The detection assembly further comprises a first detection unit placement seat 25 and a second detection unit placement seat 26, the first detection unit 21 is located on the first detection unit placement seat 25, and the second detection unit 22 is located on the second detection unit placement seat 26. For clear illustration, Figure 8 The position of the shielding part 31 between the first detection unit 21 and the second detection unit 22 is exemplarily shown in FIG.

[0101] Figure 8 The centers of the first detection unit 21, the second detection unit 22 and the shielding part 31 are located on the same center line X, in order to enable the shielding part 31 to shield the emitter 211 and the receiver 212, the width W h of the shielding part 31 should be less than the slot width L1 of the first detection unit 21 and the slot width L2 of the second detection unit 22. In order to complete the detection, the shielding part 31 should completely shield the optical signal emitted by the emitter 211 to the receiver 212, so that the upper edge of the shielding part 31 when rising to the top of the lifting path should be flush with the upper edge of the first detection unit 21.

[0102] In order to avoid interference between the transmission rod 32 in the lifting assembly 3 and the first detection unit 21 and the second detection unit 22 during lifting, the following formula should be met:

[0103] L in1 ≥W t1

[0104] L in2 ≥Wt2

[0105] wherein L in1 is the distance between the side edge of the shielding portion 31 near the top of the lifting path and the side edge of the transmission rod 32 near the top of the lifting path, W t1 is the distance between the upper edge of the first detection unit 21 and the lower edge of the first detection unit placement seat 25, L in2 is the distance between the side edge of the shielding portion 31 near the bottom of the lifting path and the side edge of the transmission rod 32 near the bottom of the lifting path, Wt2 is the distance between the lower edge of the second detection unit 22 and the lower edge of the first detection unit placement seat 25.

[0106] Since the first detection unit 21 is usually placed at the center position of the first detection unit placement seat 25, and the second detection unit 22 is usually placed at the center position of the second detection unit placement seat 26, the following formula is satisfied:

[0107]

[0108]

[0109] wherein W1 is the distance between the upper edge and the lower edge of the first detection unit placement seat 25, W tr1 is the distance between the upper edge and the lower edge of the first detection unit 21, W2 is the distance between the upper edge and the lower edge of the second detection unit placement seat 26, W tr2 is the distance between the upper edge and the lower edge of the second detection unit 22. Therefore, the following formula can be derived:

[0110]

[0111]

[0112] In order to make the transmission rod 32 have greater structural compatibility, a redundancy L RU can be set at the top of the lifting path, and a redundancy L RD can be set at the bottom of the lifting path, so as to derive the following formula:

[0113]

[0114]

[0115] The length L h of the shielding portion 31 along the direction parallel to the center line satisfies the following formula:

[0116] L h = W S + 2L in = WS + W + W tr

[0117] wherein, W s is the width of the transmission rod 32 along the center line direction.

[0118] The maximum detection distance D of the shielding part 31 satisfies the following formula:

[0119] D = L h + D m

[0120] wherein, D m is the maximum stroke of the transmission rod 32, which can be calculated according to the field angle of the image acquisition assembly and the structural relationship between the camera and the display 260, which is well known to those skilled in the art, and some embodiments of the present application will not be described here.

[0121] The placement distance Dt between the first detection unit 21 and the second detection unit 22 satisfies the following formula:

[0122]

[0123] Substitute the maximum detection distance D of the shielding part 31 into the above calculation formula to obtain:

[0124] D t = L h + D m -W tr

[0125] Substitute the length L of the shielding part 31 h , we can get:

[0126] D t = W S +W+D m

[0127] Based on the above method, the reasonable arrangement of the lifting assembly 3 and the detection assembly can be completed, the transmission rod 32 is prevented from interfering with the first detection unit 21 or the second detection unit 22 during lifting, and the shielding part 31 can be lifted between the first detection unit 21 and the second detection unit 22.

[0128] When the user gently touches or rotates the image acquisition assembly 1, the stress generated will make the shielding part 31 leave the first detection unit 21 for a short time and a small distance, at this time the light emitted by the transmitter 211 is irradiated to the receiver 212, at this time the controller 250 will misjudge that the image acquisition assembly 1 has left the top position of the lifting path, thereby causing misoperation.

[0129] In order to solve the above problems, Figure 11For another layout of the lifting assembly and the detection assembly according to the exemplary embodiments of the present application, in some embodiments, as shown in Figure 11 When the shielding part 31 rises to the top of the lifting path, the upper edge of the shielding part 31 is above the upper edge of the first detection unit 21, and there is a preset distance between the upper edge of the shielding part 31 and the upper edge of the first detection unit 21.

[0130] Specifically, as shown in Figure 11 Theoretically, the distance tolerance caused by the maximum stress, i.e., the preset distance, is ΔL. In order to avoid accidental touching of the position of the shielding part 31 and ensure that the generated stress does not cause accidental touching, the shielding part 31 can be controlled to walk a preset distance ΔL upward when it rises to the top of the lifting path, so that the upper edge of the shielding part 31 is above the upper edge of the first detection unit 21, and there is a preset distance ΔL between the upper edge of the shielding part 31 and the upper edge of the first detection unit 21. The shielding part 31 is above the upper edge of the first detection unit 21 when it rises to the top of the lifting path. When the user accidentally touches the shielding part 31, the shielding part 31 is displaced by a distance ΔL in the direction of the bottom of the lifting path, and the shielding part 31 can still shield the transmitter 211 of the first detection unit 21. Figure 11 The rectangle with a fill mark in the above figure represents the shielding part 31 that is above the upper edge of the first detection unit 21 when it rises to the top of the lifting path, and there is a preset distance ΔL between the upper edge of the shielding part 31 and the upper edge of the first detection unit 21. When the shielding part 31 descends to the position of the rectangle without a fill mark, it can still shield the first detection unit.

[0131] Specifically, theoretically, in the maximum stroke Dm of the transmission rod 32, the corresponding total number of steps is N0, and the single step length S is:

[0132]

[0133] The corresponding number of steps ΔN in the preset distance is:

[0134]

[0135] Therefore, the total number of steps walked by the corrected shielding part 31 is:

[0136]

[0137] In order to avoid interference between the transmission rod 32 in the lifting assembly 3 and the first detection unit 21 during lifting, the distance L between the side edge of the shielding part 31 near the top of the lifting path and the side edge of the transmission rod 32 near the top of the lifting path in must satisfy the following formula:

[0138]

[0139] It should be noted that the positional relationship between the detection assembly and the lifting assembly 3 can be set according to the above-mentioned embodiments, and some embodiments of the present application do not repeat the description here.

[0140] In some embodiments, if the maximum stroke of the transmission rod 32 has been fixed, if the shielding part 31 moves upward by a preset distance ΔL, the total stroke will be lengthened, and therefore, when the cloth is arranged, the upper edge of the first detection unit 21 can be arranged to be a preset distance ΔL lower than the upper edge of the shielding part 31 when the shielding part 31 rises to the top of the lifting path.

[0141] Figure 12 For the control method of the display device according to the exemplary embodiments of the present application, it is suitable for the display device described in the above-mentioned embodiments, and in some embodiments, the controller performs Figure 12 the following steps shown in the flowchart of FIG. 10:

[0142] S101, obtaining a detection signal of a detection assembly.

[0143] Exemplarily, when the shielding part shields the light signal emitted by the emitter of the first detection unit, the receiver of the first detection unit does not receive the light signal, and the detection signal generated by the receiver of the first detection unit is, for example, a first preset signal; when the shielding part does not shield the light signal emitted by the emitter of the first detection unit, the receiver of the first detection unit receives the light signal, and the detection signal generated by the receiver of the first detection unit is, for example, a second preset signal.

[0144] When the shielding part shields the light signal emitted by the emitter of the second detection unit, the receiver of the second detection unit does not receive the light signal, and the detection signal generated by the receiver of the second detection unit is, for example, a first preset signal; when the shielding part does not shield the light signal emitted by the emitter of the second detection unit, the receiver of the second detection unit receives the light signal, and the detection signal generated by the receiver of the second detection unit is, for example, a second preset signal.

[0145] S102, determining the position of the image acquisition assembly according to the detection signal.

[0146] Specifically, the controller can determine that the image acquisition assembly is located at the bottom of the lifting path according to the first preset signal emitted by the receiver of the second detection unit, and can also determine that the image acquisition assembly has been raised according to the second preset signal emitted by the receiver of the second detection unit. At the same time, the controller can determine that the image acquisition assembly is located at the top of the lifting path according to the first preset signal emitted by the receiver of the first detection unit, and can also determine that the image acquisition assembly has been lowered according to the second preset signal emitted by the receiver of the second detection unit.

[0147] In some embodiments, the controller is further configured to:

[0148] power on the image processing component;

[0149] controlling the image acquisition component to perform initialization parameter configuration and controlling the image processing component to send an opening signal to the transmitter of the detection component;

[0150] obtaining a detection signal of a receiver of the second detection unit;

[0151] If the detection signal of the receiver of the second detection unit is the first preset signal, it is determined that the image acquisition component is located at the bottom of the lifting path, otherwise, a descending control instruction is sent to the image processing component, so that the image processing component controls the lifting component to descend until the detection signal of the receiver of the second detection unit is the first preset signal.

[0152] Specifically, when the controller receives a control instruction issued by a user to use the image acquisition unit or a control instruction in an application program to call the image acquisition unit, the controller powers on the image processing component and completes internal initialization. The image acquisition component is controlled to perform initialization parameter configuration, for example, the configuration of a sensor in the image acquisition component is completed, the initialization of the sensor is implemented, and the UVC (USB Video Class) protocol is initialized. It should be noted that the initialization manner of the image acquisition component and the image processing component is well known to those skilled in the art, and some embodiments of the present application will not be described here.

[0153] The image acquisition component controls the transmitter in the detection component to open. When the controller obtains the detection signal of the receiver of the second detection unit as the first preset signal, in combination with the circuit structure of Figure 7 If the first preset signal is, for example, a high-level signal, it is determined that the shielding part shields the light signal emitted by the transmitter of the second detection unit, and the controller determines that the image acquisition component is located at the bottom of the lifting path. If the controller obtains a detection signal of a receiver of the second detection unit that is not the first preset signal, it indicates that the light signal emitted by the transmitter of the second detection unit is received by the receiver, at this time the shielding part does not shield the light signal emitted by the transmitter of the second detection unit, and it is determined that the image acquisition component is not located at the bottom of the lifting path. At this time, the lifting component is controlled to drive the image acquisition component to descend. When the detection signal of the receiver of the second detection unit is the first preset signal, it is determined that the image acquisition component has been homed, i.e., has been located at the bottom of the lifting path.

[0154] Figure 13 A specific flowchart of a controller controlling initialization of an image acquisition module according to an exemplary embodiment of the present application is shown in FIG. Figure 13 As shown in FIG.

[0155] S201, power on the image processing component.

[0156] S202, power on a sensor in the image acquisition component and initialize.

[0157] S203, control initialization of the UVC protocol.

[0158] Steps 204 to 208 are also included.

[0159] S204, control the image processing component to send an enable signal to the transmitter of the detection component.

[0160] S205, acquire a detection signal of a receiver of the second detection unit.

[0161] S206, determine whether the detection signal of the receiver of the second detection unit is a high-level signal; if yes, execute step 207; if no, execute step 208.

[0162] S207, determine that the image acquisition component is located at the bottom of the lifting path.

[0163] S208, send a lowering control instruction to the image processing component to control the image processing component to lower the lifting component.

[0164] In some embodiments, the controller is further configured to:

[0165] send a rising control instruction to the image processing component to control the image processing component to rise the lifting component;

[0166] poll the detection signals of the receivers of the first detection unit and the second detection unit;

[0167] if the detection signal of the receiver of the second detection unit changes from the first preset signal to the second preset signal within a first preset time, control the image acquisition component to start acquiring external image information;

[0168] if the detection signal of the receiver of the first detection unit changes from the second preset signal to the first preset signal within a second preset time, determine that the position of the image acquisition component is located at the top of the lifting path, and send the external image information acquired by the image acquisition component to the display for display.

[0169] Specifically, after the image processing component is powered on and the image acquisition component is initialized and parameter configuration, the controller sends a rising control instruction to the image processing component to control the image processing component to rise the lifting component with the image acquisition component. During the process of the lifting component rising with the image acquisition component, the image processing component stores the detection signals of the receivers of the first detection unit and the second detection unit in a state register of the image processing component, and the controller polls the detection signals of the receivers of the first detection unit and the second detection unit in the state register to determine the position of the image acquisition component based on the detection signals.

[0170] Exemplarily, if the detection signal of the receiver of the second detection unit changes from the first preset signal, for example, a high-level signal, to the second preset signal, for example, a low-level signal, within the first preset time, it indicates that the image acquisition assembly has been raised, and the image acquisition assembly is controlled to start collecting external image information. If the detection signal of the receiver of the first detection unit changes from the second preset signal, for example, a low-level signal, to the first preset signal, for example, a high-level signal, within the second preset time, it indicates that the image acquisition assembly has reached the top of the lifting path, indicating that the image acquisition assembly is normally raised, and the collected image does not contain the problem of black edges caused by the shielding of the image acquisition assembly in the display, and the external image information collected by the image acquisition assembly can be sent to the display for displaying the collected picture by the display.

[0171] If the detection signal of the receiver of the second detection unit does not change from the first preset signal to the second preset signal within the first preset time, it indicates that the image acquisition assembly is not normally raised, and it is judged that the display device is faulty, and the display can prompt the user of the abnormality. Or if the detection signal of the receiver of the first detection unit does not change from the second preset signal to the first preset signal within the second preset time, it indicates that the image acquisition assembly does not normally reach the top of the lifting path, and it is judged that the display device is faulty, and the display can prompt the user of the abnormality.

[0172] Figure 14 A specific flowchart of a controller for controlling the image acquisition module to rise according to the exemplary embodiments of the present application is shown in FIG. 1, which includes the following steps. Figure 14 As shown in FIG. 1, the specific flowchart includes the following steps.

[0173] S301, sending a rising control instruction to the image processing assembly.

[0174] S302, polling the detection signals of the receivers of the first detection unit and the second detection unit.

[0175] S303, judging whether the detection signal of the receiver of the second detection unit changes from the first preset signal to the second preset signal within the first preset time; if yes, executing step 304; if no, executing step 307.

[0176] S304, controlling the image acquisition assembly to start collecting external image information.

[0177] S305, judging whether the detection signal of the receiver of the first detection unit changes from the second preset signal to the first preset signal within the second preset time; if yes, executing step 306; if no, executing step 307.

[0178] S306, determine that the position of the image acquisition component is at the top of the lifting path, and send the external image information collected by the image acquisition component to the display.

[0179] S307, prompt the image acquisition module failure.

[0180] In some embodiments, the controller is further configured to:

[0181] send a lowering control instruction to the image processing component to control the image acquisition component to close;

[0182] If the detection signal of the receiver of the second detection unit changes from the second preset signal to the first preset signal within the third preset time, it is determined that the position of the image acquisition component is at the bottom of the lifting path.

[0183] Specifically, when the user uses the remote controller or directly sends a command to the controller through the software on the touch interface of the display to close the image acquisition component, the controller sends a lowering control instruction to the image processing component, and the image processing component controls the image acquisition component to close. The lifting component drives the image acquisition component to descend until the detection signal of the receiver of the second detection unit changes from the second preset signal to the first preset signal, and it is determined that the image acquisition component has reached the bottom of the lifting path. If the detection signal of the receiver of the second detection unit does not change from the second preset signal to the first preset signal within the third preset time, it indicates that the image acquisition component has not normally descended to the bottom of the lifting path, and the user can be prompted that the display device is abnormal.

[0184] Figure 15 A specific flowchart of a controller controlling the image acquisition module to descend according to an exemplary embodiment of the present application is shown in FIG. 4, which includes: Figure 15

[0185] S401, send a lowering control instruction to the image processing component.

[0186] S402, determine whether the detection signal of the receiver of the second detection unit changes from the second preset signal to the first preset signal within the third preset time; if yes, execute step 403; if no, execute step 404.

[0187] S403, determine that the position of the image acquisition component is at the bottom of the lifting path.

[0188] S404, prompt the image acquisition module failure.

[0189] In some embodiments, the controller is further configured to:

[0190] obtain the detection signal of the receiver of the first detection unit and the detection signal of the receiver of the second detection unit;​

[0191] If the detection signal of the receiver of the first detection unit changes from the first preset signal to the second preset signal, a lowering control instruction and an image acquisition component closing instruction are sent to the image processing component, so that the image processing component controls the lifting component to lower and controls the image acquisition component to close.

[0192] After the lifting component is controlled to lower, if the detection signal of the receiver of the second detection unit changes from the second preset signal to the first preset signal, it is determined that the position of the image acquisition component is located at the bottom of the lifting path.

[0193] Specifically, when the user no longer sends a control instruction through the remote controller or the touch interface in the display, but directly presses the top of the image acquisition component, the image acquisition component is pressed to move downward, and when the image acquisition component moves, the transmission rod also drives the shielding part to move downward, and the shielding part no longer shields the light signal emitted by the emitter of the first detection unit. At this time, the detection signal of the receiver of the first detection unit changes from the first preset signal to the second preset signal. When the controller obtains the change of the detection signal, the controller controls to send a lowering control instruction to the image processing component, so that the image processing component controls the image acquisition component to close, and controls the lifting component to lower. Until the detection signal of the receiver of the second detection unit changes from the second preset signal to the first preset signal, it can be determined that the image acquisition component has lowered to the bottom of the lifting path.

[0194] Figure 16 Another specific flowchart for controlling the image acquisition component to lower according to the exemplary embodiments of the present application is shown in FIG. 5, which includes the following steps. Figure 16 As shown in FIG. 5, the specific flowchart includes the following steps.

[0195] S501, obtaining the detection signal of the receiver of the first detection unit.

[0196] S502, determining whether the detection signal of the receiver of the first detection unit changes from the first preset signal to the second preset signal; if yes, performing step 503; if no, continuing to perform step 501.

[0197] S503, sending a lowering control instruction and an image acquisition component closing instruction to the image processing component.

[0198] S504, determining whether the detection signal of the receiver of the second detection unit changes from the second preset signal to the first preset signal within a fourth preset time; if yes, performing step 505; if no, performing step 506.

[0199] S505, determining that the position of the image acquisition component is located at the bottom of the lifting path.

[0200] S506, prompting that the image acquisition component is faulty.

[0201] As can be seen from the above embodiments, some embodiments of the present application provide a display device. By arranging the shielding part in the lifting assembly, the light signal emitted by the emitter of the second detection unit is shielded when the shielding part is at the bottom of the lifting path, and the light signal emitted by the emitter of the second detection unit is not shielded when the shielding part is not at the bottom of the lifting path, so that the detection signal generated by the receiver of the second detection unit is different, thereby enabling the controller to determine whether the image acquisition assembly is located at the bottom of the lifting path according to the detection signal. When the shielding part is at the top of the lifting path, the light signal emitted by the emitter of the second detection unit is shielded, and when the shielding part is not at the top of the lifting path, the light signal emitted by the emitter of the second detection unit is not shielded, so that the detection signal generated by the receiver of the first detection unit is different, thereby enabling the controller to determine whether the image acquisition assembly is located at the top of the lifting path according to the detection signal. The problem of inaccurate position determination of the image acquisition assembly by the prior art through step measurement, reflection measurement or magnetic force measurement is avoided, and the accuracy of position detection of the image acquisition assembly is improved.

[0202] According to the display device provided by the above embodiments, some embodiments of the present application further provide a control method of a display device. The execution subject of the control method of the display device includes but is not limited to the controller of the display device. The specific implementation of the control method of the display device can refer to the above embodiments, especially the specific implementation of the control method of the display device in the embodiments shown in the above embodiments, which will not be repeated here. Figure 12

[0203] It should be noted that some embodiments of the present application do not limit whether the display device is a flexible display device. Some embodiments of the present application can be applied to curved screens, for example. In addition, the same or similar parts of each embodiment of the present application can be referred to each other, and the related content will not be repeated. Moreover, some embodiments of the present application do not list all possible combinations, and any combination of technical features in each embodiment of the present application also belongs to the protection scope of the present application.

[0204] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the above embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

[0205] ​For the sake of explanation, the foregoing descriptions have been presented in terms of specific embodiments. However, it is to be appreciated that specific embodiments described herein are not intended to limit the scope of the present application, which is defined with reference to the following claims. Various modifications and changes can be made thereto by those skilled in the art which fall within the scope of the present application as defined by the following claims. The embodiments were chosen and described in order to explain the principles of the application and the practical application and to enable others skilled in the art to understand for implementing various embodiments and with various modifications as are suited to the particular use contemplated.

Claims

1. A display device, characterized in that, include: monitor; Controller; The controller is electrically connected to the display and the image acquisition module, respectively. The controller is configured to send control commands to the image acquisition module, determine the location of the image acquisition module based on the detection signal of the detection component, and receive external image information sent by the image acquisition module. The controller is also configured to: Send a rise control command to the image processing component so that the image processing component controls the lifting component to rise; Poll to obtain the detection signals from the receivers of the first detection unit and the second detection unit; If, within a first preset time period, the detection signal of the receiver of the second detection unit changes from the first preset signal to the second preset signal, the image acquisition component is controlled to start acquiring external image information. If, within a second preset time period, the detection signal of the receiver of the first detection unit changes from the second preset signal to the first preset signal, it is determined that the image acquisition component is located at the top of the lifting path, and the external image information acquired by the image acquisition component is sent to the display for display. An image acquisition module, specifically configured to include: Image acquisition component, used to acquire external image information; The detection component includes a first detection unit and a second detection unit; both the first detection unit and the second detection unit include a transmitter and a receiver; the first detection unit is located at the top of the lifting path of the lifting component, and the second detection unit is located at the bottom of the lifting path of the lifting component. A lifting assembly is provided, wherein the image acquisition assembly is mounted on the lifting assembly, and the lifting assembly drives the image acquisition assembly to perform lifting and lowering movements; the lifting assembly includes a blocking part; the blocking part is used to block the light signal emitted by the transmitter of the first detection unit or the second detection unit during the lifting process, so that the receiver of the first detection unit or the second detection unit generates a detection signal based on the acquired light signal; the upper edge of the blocking part when it rises to the top of the lifting path is flush with the upper edge of the first detection unit, or there is a preset distance between the upper edge of the blocking part when it rises to the top of the lifting path and the upper edge of the first detection unit; An image processing component is electrically connected to the image acquisition component, the detection component, and the lifting component, respectively. The image processing component is used to control the lifting component to move up and down and to control the image acquisition component to acquire external image information according to the control commands sent by the controller.

2. The display device according to claim 1, characterized in that, The image acquisition module also includes a first switch unit and a second switch unit; The first switching unit is electrically connected to the transmitter of the first detection unit and the image processing component, respectively; the second switching unit is electrically connected to the transmitter of the second detection unit and the image processing component, respectively. The image processing component is configured to control the opening and closing of the transmitter of the first detection unit via the first switching unit; the image processing component is configured to control the opening and closing of the transmitter of the second detection unit via the second switching unit.

3. The display device according to claim 2, characterized in that, The transmitter of the first detection unit includes a first light-emitting diode; the receiver of the first detection unit includes a first phototransistor; the first terminal of the first light-emitting diode is electrically connected to the first switching unit, the second terminal of the first light-emitting diode is grounded to the second terminal of the first phototransistor, and the first terminal of the first phototransistor is connected to a power signal and electrically connected to the first detection terminal of the image processing component. The transmitter of the second detection unit includes a second light-emitting diode; the receiver of the second detection unit includes a second phototransistor; the first end of the second light-emitting diode is electrically connected to the second switching unit, the second end of the second light-emitting diode is grounded to the second end of the second phototransistor, and the first end of the second phototransistor is connected to a power signal and electrically connected to the second detection end of the image processing component.

4. The display device according to claim 1, characterized in that, The controller is also configured to: Control the image processing component to power on; The image acquisition component is controlled to configure initialization parameters, and the image processing component is controlled to send an enable signal to the transmitter of the detection component. Acquire the detection signal from the receiver of the second detection unit; If the detection signal of the receiver of the second detection unit is the first preset signal, it is determined that the image acquisition component is located at the bottom of the lifting path; otherwise, a descent control command is sent to the image processing component so that the image processing component controls the lifting component to descend until the detection signal of the receiver of the second detection unit is the first preset signal.

5. The display device according to claim 1, characterized in that, The controller is also configured to: Send a descent control command to the image processing component so that the image processing component controls the image acquisition component to shut down; If, within a third preset time period, the detection signal of the receiver of the second detection unit changes from a second preset signal to a first preset signal, it is determined that the image acquisition component is located at the bottom of the lifting path.

6. The display device according to claim 1, characterized in that, The controller is also configured to: Acquire the detection signal from the receiver of the first detection unit and the detection signal from the receiver of the second detection unit; If the detection signal of the receiver of the first detection unit changes from the first preset signal to the second preset signal, a descent control command and an image acquisition component shutdown command are sent to the image processing component, so that the image processing component controls the descent of the lifting component and controls the shutdown of the image acquisition component; After the lifting component descends, if the detection signal of the receiver of the second detection unit changes from the second preset signal to the first preset signal within a fourth preset time, it is determined that the image acquisition component is located at the bottom of the lifting path.

7. A control method for a display device, characterized in that, The control method for the display device as described in any one of claims 1-6 includes: Acquire the detection signal from the detection component; The location of the image acquisition component is determined based on the detection signal.

Images