CN114125518A - Display device - Google Patents
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- CN114125518A CN114125518A CN202110298436.3A CN202110298436A CN114125518A CN 114125518 A CN114125518 A CN 114125518A CN 202110298436 A CN202110298436 A CN 202110298436A CN 114125518 A CN114125518 A CN 114125518A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
- H04N21/42204—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
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Abstract
The application discloses display device for in time discernment and the unusual circumstances of solving the screen that curls and taking place at the removal in-process promote user experience. The display device comprises a rolled screen; the driving assembly is used for driving the curled screen to unfold or curl; a monitoring component for monitoring the height of the rolled screen during unrolling or rolling of the rolled screen; a controller for performing: in the process of unfolding or curling the curled screen according to a preset speed curve and displaying a preset image according to a preset height curve, detecting that the height of the curled screen does not change within a preset time, and stopping unfolding or curling the curled screen and displaying the preset image; and controlling the curled screen to enter a reset state, so that the curled screen is unfolded or curled again according to the preset speed curve after returning to a relative zero point, and the curled screen displays a preset image again according to the preset height curve.
Description
The present application claims priority from the chinese patent application entitled "a display device" filed by the chinese patent office on 29/06/29/2020, application number 202010603016.7, the entire contents of which are incorporated herein by reference.
Technical Field
The application relates to the technical field of display, in particular to a display device.
Background
The laser television is a television product which adopts a laser light source as a display light source, is matched with a projection display technology for imaging, is provided with a special projection screen and can receive broadcast television programs or internet television programs. In the related art, the laser television adopts a screen which is unfolded from top to bottom and also adopts a screen which is unfolded from bottom to top in a television cabinet. The latter is that the optical engine and the curled screen are arranged in the television cabinet, when the television is started, the screen rises from the television cabinet slowly, and the image of the optical engine can be shot at the back global position. However, during the ascending or descending process of the screen, abnormal conditions such as screen jamming can occur. If the abnormal condition happens, the screen is blocked at a certain position for a long time if the abnormal condition is not processed in time, and even partial elements can be damaged, so that the user experience is not good.
Disclosure of Invention
The embodiment of the application provides a display device for in time discerning and solving the unusual circumstances that curly screen takes place at the removal in-process, promote user experience.
In a first aspect, there is provided a display device comprising:
curling the screen;
the driving assembly is used for driving the curled screen to unfold or curl;
a monitoring component for monitoring the height of the rolled screen during unrolling or rolling of the rolled screen;
a controller for performing:
in the process of unfolding or curling the curled screen according to a preset speed curve and displaying a preset image according to a preset height curve, detecting that the height of the curled screen does not change within a preset time, and stopping unfolding or curling the curled screen and displaying the preset image;
and controlling the curled screen to enter a reset state, so that the curled screen is unfolded or curled again according to the preset speed curve after returning to a relative zero point, and the curled screen displays a preset image again according to the preset height curve.
In a second aspect, there is provided a display device comprising:
curling the screen;
the driving assembly is used for driving the curled screen to unfold or curl;
the monitoring component is used for monitoring abnormal state information of the driving component;
a controller for performing:
in the process of unfolding or curling the curled screen according to a preset speed curve and displaying a preset image according to a preset height curve, receiving abnormal state information sent by a monitoring assembly, stopping unfolding or curling the curled screen and displaying the preset image;
and controlling the curled screen to enter a reset state, so that the curled screen is unfolded or curled again according to the preset speed curve after returning to a relative zero point, and the curled screen displays a preset image again according to the preset height curve.
In a third aspect, there is provided a display device comprising:
curling the screen;
the driving assembly is used for driving the curled screen to unfold or curl;
a monitoring component for monitoring the height of the rolled screen during unrolling or rolling of the rolled screen;
a controller for performing:
in the process of unfolding or curling the curled screen according to a preset speed curve and displaying a preset image according to a preset height curve, detecting that the height of the curled screen does not change within preset time, and suspending unfolding or curling the curled screen and displaying the preset image;
and controlling the curling screen to display a user interface, wherein the user interface comprises abnormal information prompt information.
In some embodiments, the controller is operative to control the scrolling screen display user interface in a manner that:
determining an effective display area and a non-effective display area of a user interface according to the height of the current curled screen;
shading the non-effective display area, and setting abnormal information prompt information at a preset position of the effective display area to obtain a processed user interface;
controlling a scrolling screen to display the processed user interface.
In some embodiments, the controller is further configured to perform:
in response to an instruction input by a user to continue unrolling or rolling the rolled screen, replying a speed curve and a height curve according to the current rolled screen height, the total rolled screen height, the rolled screen rising time and the rolled screen rising time;
controlling a curling screen to unfold or curl the curling screen according to the newly drawn speed curve;
and controlling the curling screen to display a preset image according to the newly drawn height curve.
In a fourth aspect, there is provided a display device comprising:
curling the screen;
the driving assembly is used for driving the curled screen to unfold or curl;
the monitoring component is used for monitoring abnormal state information of the driving component;
a controller for performing:
in the process of unfolding or curling the curled screen according to a preset speed curve and displaying a preset image according to a preset height curve, receiving abnormal state information sent by a monitoring assembly, and pausing unfolding or curling the curled screen and displaying the preset image;
and controlling the curling screen to display a user interface, wherein the user interface comprises abnormal information prompt information.
In some embodiments, the controller is operative to control the scrolling screen display user interface in a manner that:
determining an effective display area and a non-effective display area of a user interface according to the height of the current curled screen;
shading the non-effective display area, and setting abnormal information prompt information at a preset position of the effective display area to obtain a processed user interface;
controlling a scrolling screen to display the processed user interface.
In some embodiments, the controller is further configured to perform:
in response to an instruction for continuously unfolding or curling the curled screen input by a user, replying a speed curve and a height curve according to the height of the current curled screen, the total height of the curled screen, the rising time of the curled screen and the rising time of the curled screen;
controlling the curling screen to unfold or curl the curling screen according to the newly drawn speed curve;
and controlling the curling screen to display a preset image according to the newly drawn height curve.
In a fifth aspect, there is provided a display device comprising:
curling the screen;
the driving component is connected with the curled screen and is used for driving the curled screen to move upwards or downwards;
the monitoring component is used for monitoring the state information of the driving component;
a controller for performing:
responding to a starting instruction input by a user, detecting that the current curled screen is not at an absolute zero position, controlling the curled screen to enter a reset state, so that the curled screen rises again according to a preset curve after returning to a relative zero position, and the projection assembly projects a preset image again according to the preset curve.
In a sixth aspect, there is provided a display device comprising:
curling the screen;
a projection assembly;
the driving assembly is used for driving the curled screen to unfold or curl;
a monitoring component for monitoring the height of the rolled screen during unrolling or rolling of the rolled screen;
a controller for performing:
responding to a starting instruction input by a user, detecting that the current curled screen is not at an absolute zero position, and drawing up a speed curve and a height curve according to the height of the current curled screen and the total height of the curled screen;
controlling a curling screen to unwind or curl the curling screen according to a speed profile;
and controlling the curling screen to display a preset image according to the height curve.
In the above embodiment, in the process of unfolding or curling the curled screen according to the preset speed curve and displaying the preset image according to the preset height curve, when the curled screen is detected to have an abnormal condition and cannot be unfolded or curled continuously, the curled screen may be controlled to enter a reset state, so that the screen is unfolded or curled again and the preset image is displayed again after the screen returns to a relative zero point, or after the abnormal condition is solved, the curled screen is unfolded or curled according to the newly formulated speed curve and the preset image is displayed according to the newly formulated height curve. Therefore, the user can timely identify and solve the abnormal situation of the curled screen in the moving process, and the user experience is improved.
Drawings
FIG. 1 illustrates a usage scenario of a display device according to some embodiments;
fig. 2 illustrates a hardware configuration block diagram of the control apparatus 100 according to some embodiments;
fig. 3 illustrates a hardware configuration block diagram of the display apparatus 200 according to some embodiments;
FIG. 4 illustrates a software configuration diagram in the display device 200 according to some embodiments;
FIG. 5 illustrates a perspective view of a display device 200 according to some embodiments;
FIG. 6 illustrates a front view of a display device 200 according to some embodiments;
FIG. 7 illustrates a schematic diagram of a curl screen curl in a display device 200 according to some embodiments;
FIG. 8 illustrates a schematic diagram of the unrolling of a convoluted screen in a display device 200 according to some embodiments;
FIG. 9 is a timing diagram illustrating non-abnormal operation of a display device;
FIG. 10 illustrates an image display diagram;
FIG. 11 illustrates an exemplary preset speed profile;
FIG. 12 is a graph schematically illustrating time versus height of a warped screen in an abnormal situation of a display device;
fig. 13 is a timing chart exemplarily showing an operation in an abnormal condition of the display device;
FIG. 14 is a diagram illustrating an example of a display exception information prompt;
FIG. 15 is a diagram illustrating another example of displaying an exception information prompt;
FIG. 16 is a graph schematically illustrating time versus scrolling screen height for an abnormal condition of another display device;
fig. 17 exemplarily shows a timing chart of an operation in an abnormal condition of another display device.
Detailed Description
To make the purpose and embodiments of the present application clearer, the following will clearly and completely describe the exemplary embodiments of the present application with reference to the attached drawings in the exemplary embodiments of the present application, and it is obvious that the described exemplary embodiments are only a part of the embodiments of the present application, and not all of the embodiments.
It should be noted that the brief descriptions of the terms in the present application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of the present application. These terms should be understood in their ordinary and customary meaning unless otherwise indicated.
The terms "first," "second," "third," and the like in the description and claims of this application and in the above-described drawings are used for distinguishing between similar or analogous objects or entities and not necessarily for describing a particular sequential or chronological order, unless otherwise indicated. It is to be understood that the terms so used are interchangeable under appropriate circumstances.
The terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a product or apparatus that comprises a list of elements is not necessarily limited to all elements expressly listed, but may include other elements not expressly listed or inherent to such product or apparatus.
The term "module" refers to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic, or combination of hardware or/and software code that is capable of performing the functionality associated with that element.
Fig. 1 is a schematic diagram of a usage scenario of a display device according to an embodiment. As shown in fig. 1, the display apparatus 200 is also in data communication with a server 400, and a user can operate the display apparatus 200 through the smart device 300 or the control device 100.
In some embodiments, the control apparatus 100 may be a remote controller, and the communication between the remote controller and the display device includes at least one of an infrared protocol communication or a bluetooth protocol communication, and other short-distance communication methods, and controls the display device 200 in a wireless or wired manner. The user may control the display apparatus 200 by inputting a user instruction through at least one of a key on a remote controller, a voice input, a control panel input, and the like.
In some embodiments, the smart device 300 may include any of a mobile terminal, a tablet, a computer, a laptop, an AR/VR device, and the like.
In some embodiments, the smart device 300 may also be used to control the display device 200. For example, the display device 200 is controlled using an application program running on the smart device.
In some embodiments, the smart device 300 and the display device may also be used for communication of data.
In some embodiments, the display device 200 may also be controlled in a manner other than the control apparatus 100 and the smart device 300, for example, the voice instruction control of the user may be directly received by a module configured inside the display device 200 to obtain a voice instruction, or may be received by a voice control apparatus provided outside the display device 200.
In some embodiments, the display device 200 is also in data communication with a server 400. The display device 200 may be allowed to be communicatively connected through a Local Area Network (LAN), a Wireless Local Area Network (WLAN), and other networks. The server 400 may provide various contents and interactions to the display apparatus 200. The server 400 may be a cluster or a plurality of clusters, and may include one or more types of servers.
In some embodiments, software steps executed by one step execution agent may be migrated on demand to another step execution agent in data communication therewith for execution. Illustratively, software steps performed by the server may be migrated to be performed on a display device in data communication therewith, and vice versa, as desired.
Fig. 2 exemplarily shows a block diagram of a configuration of the control apparatus 100 according to an exemplary embodiment. As shown in fig. 2, the control device 100 includes a controller 110, a communication interface 130, a user input/output interface 140, a memory, and a power supply. The control apparatus 100 may receive an input operation instruction from a user and convert the operation instruction into an instruction recognizable and responsive by the display device 200, serving as an interaction intermediary between the user and the display device 200.
In some embodiments, the communication interface 130 is used for external communication, and includes at least one of a WIFI chip, a bluetooth module, NFC, or an alternative module.
In some embodiments, the user input/output interface 140 includes at least one of a microphone, a touchpad, a sensor, a key, or an alternative module.
Fig. 3 shows a hardware configuration block diagram of the display apparatus 200 according to an exemplary embodiment.
In some embodiments, the display apparatus 200 includes at least one of a tuner 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, a user interface.
In some embodiments the controller comprises a central processor, a video processor, an audio processor, a graphics processor, a RAM, a ROM, a first interface to an nth interface for input/output.
In some embodiments, the display 260 includes a display screen component for displaying pictures, and a driving component for driving image display, a component for receiving image signals from the controller output, displaying video content, image content, and menu manipulation interface, and a user manipulation UI interface, etc.
In some embodiments, the display 260 may be at least one of a liquid crystal display assembly, an OLED display assembly, and a projection display assembly, and may also be a projection device and a projection screen. Projection screen, curling screen, lift screen and screen all can refer to the same kind of screen in this application.
In some embodiments, the tuner demodulator 210 receives broadcast television signals via wired or wireless reception, and demodulates audio/video signals, such as EPG data signals, from a plurality of wireless or wired broadcast television signals.
In some embodiments, communicator 220 is a component for communicating with external devices or servers according to various communication protocol types. For example: the communicator may include at least one of a Wifi module, a bluetooth module, a wired ethernet module, and other network communication protocol chips or near field communication protocol chips, and an infrared receiver. The display apparatus 200 may establish transmission and reception of control signals and data signals with the control device 100 or the server 400 through the communicator 220.
In some embodiments, the detector 230 is used to collect signals of the external environment or interaction with the outside. For example, detector 230 includes a light receiver, a sensor for collecting ambient light intensity; alternatively, the detector 230 includes an image collector, such as a camera, which may be used to collect external environment scenes, attributes of the user, or user interaction gestures, or the detector 230 includes a sound collector, such as a microphone, which is used to receive external sounds.
In some embodiments, the external device interface 240 may include, but is not limited to, the following: high Definition Multimedia Interface (HDMI), analog or data high definition component input interface (component), composite video input interface (CVBS), USB input interface (USB), RGB port, and the like. The interface may be a composite input/output interface formed by the plurality of interfaces.
In some embodiments, the controller 250 and the modem 210 may be located in different separate devices, that is, the modem 210 may also be located in an external device of the main device where the controller 250 is located, such as an external set-top box.
In some embodiments, the controller 250 controls the operation of the display device and responds to user operations through various software control programs stored in memory. The controller 250 controls the overall operation of the display apparatus 200. For example: in response to receiving a user command for selecting a UI object to be displayed on the display component 260, the controller 250 may perform an operation related to the object selected by the user command.
In some embodiments, the object may be any one of selectable objects, such as a hyperlink, an icon, or other actionable control. The operations related to the selected object are: displaying an operation connected to a hyperlink page, document, image, or the like, or performing an operation of a program corresponding to the icon.
In some embodiments the controller comprises 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 (RAM), a ROM (Read-Only Memory), a first to nth interface for input/output, a communication Bus (Bus), and the like.
A CPU processor. For executing operating system and application program instructions stored in the memory, and executing various application programs, data and contents according to various interactive instructions receiving external input, so as to finally display and play various audio-video contents. The CPU processor may include a plurality of processors. E.g. comprising a main processor and one or more sub-processors.
In some embodiments, a graphics processor for generating various graphics objects, such as: at least one of an icon, an operation menu, and a user input instruction display figure. The graphic processor comprises an arithmetic unit, which performs operation by receiving various interactive instructions input by a user and displays various objects according to display attributes; the system also comprises a renderer for rendering various objects obtained based on the arithmetic unit, wherein the rendered objects are used for being displayed on the display assembly.
In some embodiments, the video processor is configured to receive an external video signal, and perform at least one of video processing such as decompression, decoding, scaling, noise reduction, frame rate conversion, resolution conversion, and image synthesis according to a standard codec protocol of the input signal, so as to obtain a signal displayed or played on the direct display device 200.
In some embodiments, the video processor includes at least one of a demultiplexing module, a video decoding module, an image composition module, a frame rate conversion module, a display formatting module, and the like. The demultiplexing module is used for demultiplexing the input audio and video data stream. And the video decoding module is used for processing the video signal after demultiplexing, including decoding, scaling and the like. And the image synthesis module is used for carrying out superposition mixing processing on the GUI signal input by the user or generated by the user and the video image after the zooming processing by the graphic generator so as to generate an image signal for display. And the frame rate conversion module is used for converting the frame rate of the input video. And the display formatting module is used for converting the received video output signal after the frame rate conversion, and changing the signal to be in accordance with the signal of the display format, such as an output RGB data signal.
In some embodiments, the audio processor is configured to receive an external audio signal, decompress and decode the received audio signal according to a standard codec protocol of the input signal, and perform at least one of noise reduction, digital-to-analog conversion, and amplification processing to obtain a sound signal that can be played in the speaker.
In some embodiments, a user may enter a user command at a Graphical User Interface (GUI) displayed on the display component 260, which receives the user input command through the Graphical User Interface (GUI). Alternatively, the user may input the user command by inputting a specific sound or gesture, and the user input interface receives the user input command by recognizing the sound or gesture through the sensor.
In some embodiments, a "user interface" is a media interface for interaction and information exchange between an application or operating system and a user that enables conversion between an internal form of information and a form that is acceptable to the user. A commonly used presentation form of the User Interface is a Graphical User Interface (GUI), which refers to a User Interface related to computer operations and displayed in a graphical manner. It may be an interface element such as an icon, a window, a control, etc. displayed in the display screen of the electronic device, where the control may include at least one of an icon, a button, a menu, a tab, a text box, a dialog box, a status bar, a navigation bar, a Widget, etc. visual interface elements.
In some embodiments, user interface 280 is an interface that may be used to receive control inputs (e.g., physical buttons on the body of the display device, or the like).
In some embodiments, a system of a display device may include a Kernel (Kernel), a command parser (shell), a file system, and an application program. The kernel, shell, and file system together make up the basic operating system structure that allows users to manage files, run programs, and use the system. After power-on, the kernel is started, kernel space is activated, hardware is abstracted, hardware parameters are initialized, and virtual memory, a scheduler, signals and interprocess communication (IPC) are operated and maintained. And after the kernel is started, loading the Shell and the user application program. The application program is compiled into machine code after being started, and a process is formed.
Referring to fig. 4, in some embodiments, the system is divided into four layers, which are, from top to bottom, an Application (Applications) layer (referred to as an "Application layer"), an Application Framework (Application Framework) layer (referred to as a "Framework layer"), an Android runtime (Android runtime) layer and a system library layer (referred to as a "system runtime library layer"), and a kernel layer.
In some embodiments, at least one application program runs in the application program layer, and the application programs may be windows (windows) programs carried by an operating system, system setting programs, clock programs or the like; or an application developed by a third party developer. In particular implementations, the application packages in the application layer are not limited to the above examples.
The framework layer provides an APPlication Programming Interface (API) and a programming framework for the aPPlication program of the aPPlication layer. The application framework layer includes a number of predefined functions. The application framework layer acts as a processing center that decides to let the applications in the application layer act. The application program can access the resources in the system and obtain the services of the system in execution through the API interface.
As shown in fig. 4, in the embodiment of the present application, the application framework layer includes a manager (Managers), a Content Provider (Content Provider), and the like, where the manager includes at least one of the following modules: an Activity Manager (Activity Manager) is used for interacting with all activities running in the system; the Location Manager (Location Manager) is used for providing the system service or application with the access of the system Location service; a Package Manager (Package Manager) for retrieving various information related to an application Package currently installed on the device; a Notification Manager (Notification Manager) for controlling display and clearing of Notification messages; a Window Manager (Window Manager) is used to manage the icons, windows, toolbars, wallpapers, and desktop components on a user interface.
In some embodiments, the activity manager is used to manage the lifecycle of the various applications as well as general navigational fallback functions, such as controlling exit, opening, fallback, etc. of the applications. The window manager is used for managing all window programs, such as obtaining the size of a display screen, judging whether a status bar exists, locking the screen, intercepting the screen, controlling the change of the display window (for example, reducing the display window, displaying a shake, displaying a distortion deformation, and the like), and the like.
In some embodiments, the system runtime layer provides support for the upper layer, i.e., the framework layer, and when the framework layer is used, the android operating system runs the C/C + + library included in the system runtime layer to implement the functions to be implemented by the framework layer.
In some embodiments, the kernel layer is a layer between hardware and software. As shown in fig. 4, the core layer includes at least one of the following drivers: audio drive, display driver, bluetooth drive, camera drive, WIFI drive, USB drive, HDMI drive, sensor drive (like fingerprint sensor, temperature sensor, pressure sensor etc.) and power drive etc..
As shown in fig. 5 and 6, the rolling screen 275 of the present embodiment can be driven by the driving assembly 276 to perform a rolling or stretching operation. Accordingly, the curled screen 275 may be in three states: the first is that the scrolling screen 275 needs to be rolled up in a non-playing scene to reduce the occupied space of the display device. At this time, the rolled screen 275 is in a rolled state, as can be seen in fig. 7. The second requires that the rolled screen 275 be extended in the scene being played so that the extended screen can carry the media assets projected by the projection component 278. In particular, reference may be made to fig. 8. The third is that the rolled screen 275 is in an excessive state (not shown) between the rolled state and the extended state during the upward movement or the downward movement of the rolled screen 275.
The warped screen 275 of the present embodiment may carry a media asset projected by the projection assembly 278 to present the media asset to a user. The warped screen 275 may also be an OLED screen, displaying the media asset directly to the user. The media assets may be images or videos, wherein the videos are presented in frames of images, so the media assets may be collectively referred to as images in this embodiment.
In some possible embodiments, the warped screen 275 may be a diffuse screen, or a retro-type screen.
A drive assembly 276 coupled to the curled screen 275 and configured to drive movement of the curled screen 275, including upward movement or downward movement. The driving assembly 276 may drive the screen 275 to roll or extend based on the control of the controller 250.
In some embodiments, drive assembly 276 may be a retractable crawler or a motor. The motor can respectively set up a motor in both ends about the screen, also can set up a spool elevator motor in the interlude of screen, can also respectively set up a motor in both ends about the lift screen, simultaneously, sets up a spool elevator motor in the interlude of lift screen.
The monitoring component 277, in some feasible embodiments, includes an image collector, and accordingly, the information monitored by the monitoring component 277 may be image information. Specifically, the monitoring component 277 may be a camera, and the corresponding monitored information may be obtained by taking a picture of a screen. The number of the cameras 279 may be one or more, wherein the camera area of at least one camera is a curled screen area, and the camera is used for taking pictures of a screen and a display image in the lifting process. When the quantity of camera was 2, two cameras were located the both sides of projection subassembly respectively. In some embodiments, the camera can rotate on a horizontal plane, and when a screen needs to be shot and an image photo needs to be displayed, the shooting lens is rotated to the direction of the screen; when the user picture needs to be taken, the shooting lens is rotated to the user.
The monitoring unit 277, in some embodiments, includes an infrared sensor, and the monitoring unit 277 monitors whether a foreign object is present on the curled screen, and when a foreign object is detected on the curled screen, the ascending process of the curled screen may be suspended in time.
In some embodiments, as shown in fig. 9, after the controller is powered on, the screen control system and the graphic image service are run, the sliding cover on the rolled screen is controlled to open, the driving assembly is controlled to drive the rolled screen to rise to a relative zero point (offset zero point or reference zero point), and the screen control system polls and sends an instruction to the monitoring assembly to obtain the current state and height of the rolled screen. And when the curled screen rises to a relative zero point, sending a screen rising instruction to the driving assembly to enable the driving assembly to rise the curled screen according to a preset speed curve, and informing the graphic image service to send the image to the projection assembly according to a preset height curve to project the image onto the curled screen. In the process, the screen control system polls and sends an instruction to the monitoring assembly to obtain the current state and the height of the curled screen, if abnormal conditions occur, abnormal information is sent to the screen control system, and the screen control system corrects the rising height of the curled screen according to the abnormal information and a preset curve. The rising height of the curled screen and the display height of the image are maintained in a synchronized state. When the curled screen rises to the highest point, the monitoring component feeds the state back to the screen control system, and the curled screen rises completely.
In the related art, abnormal conditions, such as screen jamming, can occur in the process of ascending or descending the screen. If the abnormal condition happens, the screen is blocked at a certain position for a long time if the abnormal condition is not processed in time, and even partial elements can be damaged, so that the user experience is not good.
In some embodiments, the controller controls the scrolling screen to stop rising if the controller detects no significant change in screen height within a predetermined time, indicating a screen jam.
In some embodiments, in order to ensure that the curled screen can rise to the highest point smoothly, infrared sensors are arranged on the television cabinet or on two sides of the projection assembly, and the infrared sensors are used for detecting whether foreign matters block the curled screen from rising or not above the curled screen. If the infrared sensor detects a foreign object above the curled screen, the signal is sent to the controller. At this point, the rolled screen will not continue to rise.
In some embodiments, the curled screen performs self-checking, and when the curled screen detects that the curled screen itself is abnormal, the abnormal information is sent to the controller through the monitoring component, and the controller receives the information and then controls the curled screen to stop rising.
In order to solve the above problem, an embodiment of the present application provides a display device workflow.
In some embodiments, the rolling and unfolding of the screen may be from bottom to top or from top to bottom, or from left to right or from right to left, and the direction of the rolling and unfolding of the screen is not limited in the present application. Taking the winding screen rising in the starting process as an example, the user presses the start key of the control device or presses the start key on the display device, so that the projection assembly and the controller are powered on. After the controller is powered on, the sliding cover is controlled to be opened, and the curled screen is informed to rise to a relative zero point (offset zero point). The sliding cover is used for covering the upper side of the curled screen in the curled state when the curled screen is in the rolling state, and dust is prevented from falling on the surface of the curled screen. And simultaneously, the controller runs the screen control system and the graphic image service after being electrified, wherein the screen control system is connected with the monitoring assembly, the monitoring assembly acquires the state parameters of the driving assembly, so that the height, the state and other information of the curled screen are acquired, and the graphic image service is ready to play a preset image.
In some embodiments, the preset image may be a preset picture, a preset animation or a preset video, a preset boot advertisement, or the like.
In the rising process of the curled screen, the controller polls and sends an instruction to the monitoring component, so that the information such as the current state and height of the curled screen provided by the monitoring component is obtained.
In some embodiments, the state of the curled screen includes: "fault state", "suspend state", "reset", "rise to offset", "rise to target height", "reach set height", "wait at set height", "fall to offset", and "fall to absolute zero", etc.
In some embodiments, the screen control system run by the controller sends protocol instructions that are specified in accordance with a modbus (serial communication protocol) based protocol to obtain information about the current status and height of the rolled screen provided by the monitoring components.
The controller judges whether the current rolled screen is at a position relative to the zero point according to the height and state information of the rolled screen, namely whether the current screen state is an 'offset waiting' state.
If the current curled screen does not reach the position relative to the zero point, judging whether the difference value between the time for informing the curled screen to rise to the relative zero point and the current time exceeds a preset time difference;
if the difference value between the time for informing the curled screen to rise to the relative zero point and the current time does not exceed the preset time difference, continuously judging whether the current curled screen is at the position relative to the zero point;
if the difference value between the time for informing the curling screen to rise to the relative zero point and the current time exceeds the preset time difference, the detection is overtime, and an alarm prompt is sent.
In some embodiments, the alarm prompt may be to control a fault indicator light to light up; alarm prompt information can also be displayed on the curled screen, and the prompt information comprises abnormal information; the alarm prompt can also be a voice broadcast alarm prompt message, and the alarm prompt method in the embodiment of the application is not limited to the three conditions.
And if the current curled screen reaches the position relative to the zero point, controlling the curled screen to ascend according to a preset curve, and playing a preset image by the graphic image service according to the preset curve.
In some embodiments, as shown in FIG. 10, the graphics image service collects layers (layers) drawn by different applications, composites an image (bitmap), and sends the composite image to the projection component to cause the projection component to project the image onto a warped screen.
In some embodiments, the preset speed curve is a curve of time and a height of a curled screen, and the preset height curve is a curve of time and a preset image display height. The curve of time versus height of the warped screen and the curve of time versus display height of the preset image may be the same or different.
In some embodiments, the preset speed profile employs a default ascending profile parameter at the time of factory shipment of the display device, as shown in route 1 of fig. 11. However, because of the influence of the inherent characteristics of the mechanical equipment, the temperature and humidity of north and south, the temperature and humidity of winter and summer, and the mechanical aging on the machinery, the mechanical lifting is lossy, and in a long process or in different environments, the performance of the same machinery may be different, even the performance of two pieces of mechanical equipment of the same specification is different. At present, two aging problems mainly exist, one is that the screen television is gradually aged, and the rotating speed is reduced, so that the screen lifting time is longer than before, as shown in a route 2 of fig. 10; the second is screen aging, where the screen rises to a height that is either lower or higher than the actual height, as shown in route 3 of FIG. 10.
In order to accommodate these differences and provide uniform services to users across the country and in different seasons, software is required to adaptively adjust gain parameters according to the environment, so as to ensure the consistency of rising curves and the consistency of rising services. Meanwhile, the total time of the machine is the same no matter where the machine is, and the total time of the machine is the same no matter which season, so that a more stable software and hardware structure is provided for a user.
The main technical means of the embodiment of the application is to prepare a set of ascending curve database. The curve formula: real-time height h ═ Hmax @ (math.cos ((t/Tmax +1) × math.pi)/2.0f) +0.5 f); hmax is the total height of the screen lifting at this time, t is the current time, and Tmax is the total duration of the screen lifting at this time.
And storing the actual height and the rising time of each rising as a basis in a historical database as a reference basis for starting the computer next time.
The specific implementation method comprises the following steps:
1. in the interface design, an interface for the screen to rise according to parameters is designed and added (the rising height at this time and the total time are transmitted to a screen end as parameters).
2. And the parameters (such as the rising time, the total duration according to the real-time height and the curve formula, and the information of the rising speed, the acceleration and the like) of the starting at the time are reversely deduced every starting.
3. Due to aging, temperature and humidity are slowly influenced, so that starting can be carried out for nearly 10 times and used as a basis for calculating the initial speed, height and acceleration of the starting.
4. The user interface display system fits a new ascending curve based on the calculated parameters. And controlling the screen to display the image to rise. And simultaneously, sending a serial port command to the monitoring assembly to synchronously rise.
5. When the screen rises to the highest point, the parameters of the starting-up are recorded into the rising curve database again for the next starting-up.
In some embodiments, during the process of raising the curling screen according to the preset speed curve and projecting the preset image according to the preset height curve, if it is detected that the height of the curling screen does not change within the preset time, stopping projecting the preset image and raising the curling screen;
in some embodiments, during the process of curling the screen up according to the preset speed curve and projecting the preset image according to the preset height curve, if the abnormal state information sent by the monitoring component is received, the projection of the preset image is stopped and the curling of the screen is stopped;
in the present application, the height of the rolled screen specifically refers to the distance between the highest point of the rolled screen and the bottom (absolute zero point) of the rolled screen.
In some embodiments, the method of calculating the warped screen height comprises:
the controller acquires the number of rotation turns of the driving assembly through the monitoring assembly;
the screen display calculation service operated by the controller calculates the height of the current curled screen according to the number of rotation turns of the driving assembly, and the specific formula is as follows:
r2＝r1+xh
h is the height of the current curled screen, r1 is the inner diameter of the scroll, H is the thickness of the curled screen, x is the current number of turns of rotation, and r2 is the current maximum radius.
When the height of the curled screen is not changed within the preset time, the screen is blocked. In some embodiments, the rolling screen is controlled to enter a reset state, so that the rolling screen rises again according to the preset speed curve after returning to the relative zero point, and the projection assembly projects the preset image again according to the preset height curve. In this process, a graph of time versus warped screen height is shown in FIG. 12.
In some embodiments, the reset state refers to that the normal boot process is re-entered after the rolling screen is reduced to the absolute zero point.
In some embodiments, as shown in fig. 13, when the screen control system polls to send a command to the monitoring component, and acquires the current state, height, and exception information of the warped screen, the graphic image service is controlled to stop sending the image to the projection component; and controlling the curled screen to enter a reset (reset) state, when the curled screen is reduced to an absolute zero point and then is increased to a relative zero point, sending a screen increasing instruction by the screen control system, controlling the curled screen to increase according to a preset speed curve, and simultaneously informing a graphic image service to send an image to the projection assembly according to the preset curve and project the image onto the curled screen. In the process of the re-rising of the curled screen, the screen control system still needs to poll and send an instruction to the monitoring component to acquire information such as the current state and height of the curled screen. The rising height of the curled screen and the display height of the image are maintained in a synchronized state. When the curled screen rises to the highest point, the monitoring component feeds the state back to the screen control system, and the curled screen rises completely.
In some embodiments, the step of keeping the ascending height of the scrolling screen and the display height of the image in a synchronous state specifically comprises:
and acquiring the height of the current curled screen in real time, and comparing the height of the current curled screen with the display height of the image. If the height of the current curled screen is lower than the display height of the image, cutting the image into the size which is the same as the height of the curled screen, and shading the non-curled screen area; and if the height of the current curled screen is not lower than the display height of the image, continuing to lift the curled screen and display the image according to the preset curve.
In other embodiments, in the process of raising the curling screen according to a preset speed curve and projecting the preset image according to a preset height curve, if the fact that the height of the curling screen does not change within a preset time is detected, the projection of the preset image and the raising of the curling screen are suspended;
in other embodiments, in the process of raising the curling screen and projecting the preset image according to the preset curve, if the monitoring assembly sends abnormal state information, the projection of the preset image and the raising of the curling screen are suspended;
and after the projection of the preset image and the rising of the curled screen are suspended, controlling the projection assembly to project a user interface on the curled screen, wherein the user interface comprises abnormal information prompt information.
In some embodiments, the exception information prompt message includes an exception information prompt text and an exception information prompt box. The abnormal information prompt box has a certain height, and the height can be set as a preset height. The step of controlling the projection assembly to project the user interface comprises:
determining an effective display area and a non-effective display area of a user interface according to the height of the current curled screen;
shading the non-effective display area;
judging whether the height of the current curled screen exceeds a preset height;
if the height of the current curled screen does not exceed the preset height, setting the abnormal information prompt characters at the preset position of the effective display area to obtain a processed user interface;
if the height of the current curled screen exceeds a preset height, setting an abnormal information prompt box at a preset position of an effective display area to obtain a processed user interface;
and controlling the projection component to project the processed user interface onto the curled screen.
When the current height of the rolled screen does not exceed the preset height, the user interface displays an abnormal information prompt text, as shown in fig. 14. When the height of the current curled screen exceeds the preset height, the user interface displays an abnormal information prompt box, and the abnormal information prompt box can be displayed in the middle as shown in fig. 15. The abnormal state and the fault code of the abnormal state can be displayed in the abnormal information prompt text or the abnormal information prompt box, and the abnormal state display device further comprises a "continue" control 141, a "shutdown" control 142 and a "restart" control 143. Wherein, when the user selects the "continue" control 141, the scrolling screen continues to perform the raising operation; when the user selects the "power off" control 142, the curled screen will perform a lowering operation and the display device is powered off after the curled screen has lowered to the absolute zero point; when the user selects the "restart" control 143, the curled screen will perform a lowering operation and re-enter the normal startup process after the curled screen has lowered to the absolute zero point.
In some embodiments, the fault code is as shown in table 1.
TABLE 1
| Cause of failure | Fault code |
| Left and right lifting motor is not balanced | ERR_Imbalanct |
| Unbalance of left lifting motor | ERR_LMovercurrent |
| Imbalance of right lifting motor | ERR_RMovercurrent |
| Unbalanced reel lifting motor | ERR_CMovercurrent |
In some embodiments, when the user sees the fault code from the exception information prompt box and knows the cause of the fault, the fault is cleared, for example: in the rising process of the curled screen, the foreign matter is detected to move into the rising range of the curled screen, at the moment, the rising of the curled screen is stopped, an abnormal information prompt box is displayed, and after the foreign matter is moved out of the rising range of the curled screen, a user selects a 'continue' control 141 and sends an instruction of continuing rising the curled screen.
The controller responds to an instruction for continuously raising the curled screen input by a user, and reformulates a speed curve according to the height of the current curled screen, the total height of the curled screen, the rising time of the curled screen and the rising time of the curled screen; controlling the curling screen to ascend according to the newly drawn speed curve; meanwhile, the projection assembly is controlled to project a preset image on the curled screen according to the speed curve.
In some embodiments, the speed profile equation may be expressed as:
real-time height h ═ Hmax (Math.cos ((t/Tmax +1) Math.PI)/2.0f) +0.5f)
Hmax is the total height of the screen lifting at this time, t is the current time, and Tmax is the total duration of the screen lifting at this time.
The same curve formula can be used for the rolling screen rise and the image display. The curve state is determined by the incoming peak heights Hmax and Tmax.
The speed profile re-drawing method is as follows:
when the screen is abnormally stopped, the screen is recovered to be lifted continuously by the fault, in order to ensure that the total lifting time T is constant, the time length T2 of remaining lifting can be obtained as T-T1 according to the time T1 lifted before the fault, and in order to ensure that the total lifting height H is constant, the time length H2 of remaining lifting can be obtained as H-H1 according to the time H1 lifted before the fault
Calculating the formula of the operation curve during the recovery as follows:
h＝H2＊(Math.cos((t/T2+1)＊Math.PI)/2.0f)+0.5f)。
the time versus height curve of the rolled screen during the above process is shown in fig. 16.
In some embodiments, as shown in fig. 17, when the screen control system polls to send a command to the monitoring component, and after acquiring the current state, height, and exception information of the warped screen, the graphical image service is controlled to suspend sending images to the projection component; controlling the graphic image service to send the abnormal information prompt box to the projection component; after removing the fault, the user sends out an instruction of continuously raising and curling the screen; the screen control system may send the re-programmed speed profile to the driver assembly along with the screen-up command, the driver assembly controlling the scrolling screen to ascend according to the re-programmed ascending profile and, at the same time, notifying the graphical image service to send the image to the projection assembly to project onto the scrolling screen according to the re-programmed ascending profile. In the process that the curled screen continues to rise, the screen control system still needs to poll and send an instruction to the monitoring component to acquire information such as the current state and height of the curled screen. The rising height of the curled screen and the display height of the image are maintained in a synchronized state. When the curled screen rises to the highest point, the monitoring component feeds the state back to the screen control system, and the curled screen rises completely.
In some embodiments, the above method is also applicable to the case where the scrolling screen is dropped when the computer is powered off, and is not described herein again.
During the process of ascending or descending the rolling screen, the situation of unexpected power failure can occur, so that the rolling screen stops at the position of non-absolute zero point. After restarting, the controller responds to a starting instruction input by a user, detects that the current curled screen is not located at the absolute zero position, and in some embodiments, controls the curled screen to enter a reset state, so that the curled screen rises again according to a preset speed curve after returning to the relative zero position, and the projection assembly projects a preset image again according to a preset height curve. In other embodiments, an ascending curve is formulated based on the current warped screen height and the total warped screen height; the time for rising to the height of the current curled screen can be determined according to the height of the current curled screen and a preset curve, the time corresponding to the current height is subtracted from the total rising time, the time required for rising from the current position to the highest point can be obtained, and a speed curve and a height curve can be drawn up again. Controlling the curling screen to ascend according to the newly drawn speed curve; and controlling the projection assembly to project a preset image on the curled screen according to the newly drawn height curve.
In the process of the re-rising of the curled screen, the screen control system still needs to poll and send an instruction to the monitoring component to acquire information such as the current state and height of the curled screen. The rising height of the curled screen and the display height of the image are maintained in a synchronized state. When the curled screen rises to the highest point, the monitoring component feeds the state back to the screen control system, and the curled screen rises completely.
In some embodiments, the rolled screen may be an OLED rolled screen, and unlike the above embodiments, the projection module is not required to project the preset image onto the rolled screen, but the preset image is directly displayed by the rolled screen.
In the above embodiment, in the process of unfolding or curling the curled screen according to the preset speed curve and displaying the preset image according to the preset height curve, when the curled screen is detected to have an abnormal condition and cannot be unfolded or curled continuously, the curled screen may be controlled to enter a reset state, so that the screen is unfolded or curled again and the preset image is displayed again after the screen returns to a relative zero point, or after the abnormal condition is solved, the curled screen is unfolded or curled according to the newly formulated speed curve and the preset image is displayed according to the newly formulated height curve. Therefore, the user can timely identify and solve the abnormal situation of the curled screen in the moving process, and the user experience is improved.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
The foregoing description, for purposes of explanation, has been presented in conjunction with specific embodiments. However, the illustrative discussions above are not intended to be exhaustive or to limit the embodiments to the precise forms disclosed above. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles and the practical application, to thereby enable others skilled in the art to best utilize the embodiments and various embodiments with various modifications as are suited to the particular use contemplated.
Claims (10)
1. A display device, comprising:
curling the screen;
the driving assembly is used for driving the curled screen to unfold or curl;
a monitoring component for monitoring the height of the rolled screen during unrolling or rolling of the rolled screen;
a controller for performing:
in the process of unfolding or curling the curled screen according to a preset speed curve and displaying a preset image according to a preset height curve, detecting that the height of the curled screen does not change within a preset time, and stopping unfolding or curling the curled screen and displaying the preset image;
and controlling the curled screen to enter a reset state, so that the curled screen is unfolded or curled again according to the preset speed curve after returning to a relative zero point, and the curled screen displays a preset image again according to the preset height curve.
2. A display device, comprising:
curling the screen;
the driving assembly is used for driving the curled screen to unfold or curl;
the monitoring component is used for monitoring abnormal state information of the driving component;
a controller for performing:
in the process of unfolding or curling the curled screen according to a preset speed curve and displaying a preset image according to a preset height curve, receiving abnormal state information sent by a monitoring assembly, stopping unfolding or curling the curled screen and displaying the preset image;
and controlling the curled screen to enter a reset state, so that the curled screen is unfolded or curled again according to the preset speed curve after returning to a relative zero point, and the curled screen displays a preset image again according to the preset height curve.
3. A display device, comprising:
curling the screen;
the driving assembly is used for driving the curled screen to unfold or curl;
a monitoring component for monitoring the height of the rolled screen during unrolling or rolling of the rolled screen;
a controller for performing:
in the process of unfolding or curling the curled screen according to a preset speed curve and displaying a preset image according to a preset height curve, detecting that the height of the curled screen does not change within preset time, and suspending unfolding or curling the curled screen and displaying the preset image;
and controlling the curling screen to display a user interface, wherein the user interface comprises abnormal information prompt information.
4. The display device of claim 3, wherein the controller is configured to control the scrolling screen display user interface by:
determining an effective display area and a non-effective display area of a user interface according to the height of the current curled screen;
shading the non-effective display area, and setting abnormal information prompt information at a preset position of the effective display area to obtain a processed user interface;
controlling a scrolling screen to display the processed user interface.
5. The display device according to claim 3, wherein the controller is further configured to perform:
in response to an instruction input by a user to continue unrolling or rolling the rolled screen, replying a speed curve and a height curve according to the current rolled screen height, the total rolled screen height, the rolled screen rising time and the rolled screen rising time;
controlling a curling screen to unfold or curl the curling screen according to the newly drawn speed curve;
and controlling the curling screen to display a preset image according to the newly drawn height curve.
6. A display device, comprising:
curling the screen;
the driving assembly is used for driving the curled screen to unfold or curl;
the monitoring component is used for monitoring abnormal state information of the driving component;
a controller for performing:
in the process of unfolding or curling the curled screen according to a preset speed curve and displaying a preset image according to a preset height curve, receiving abnormal state information sent by a monitoring assembly, and pausing unfolding or curling the curled screen and displaying the preset image;
and controlling the curling screen to display a user interface, wherein the user interface comprises abnormal information prompt information.
7. The display device of claim 6, wherein the controller is configured to control the scrolling screen display user interface by:
determining an effective display area and a non-effective display area of a user interface according to the height of the current curled screen;
shading the non-effective display area, and setting abnormal information prompt information at a preset position of the effective display area to obtain a processed user interface;
controlling a scrolling screen to display the processed user interface.
8. The display device according to claim 6, wherein the controller is further configured to perform:
in response to an instruction for continuously unfolding or curling the curled screen input by a user, replying a speed curve and a height curve according to the height of the current curled screen, the total height of the curled screen, the rising time of the curled screen and the rising time of the curled screen;
controlling the curling screen to unfold or curl the curling screen according to the newly drawn speed curve;
and controlling the curling screen to display a preset image according to the newly drawn height curve.
9. A display device, comprising:
curling the screen;
the driving component is connected with the curled screen and is used for driving the curled screen to move upwards or downwards;
the monitoring component is used for monitoring the state information of the driving component;
a controller for performing:
responding to a starting instruction input by a user, detecting that the current curled screen is not at an absolute zero position, controlling the curled screen to enter a reset state, so that the curled screen rises again according to a preset curve after returning to a relative zero position, and the projection assembly projects a preset image again according to the preset curve.
10. A display device, comprising:
curling the screen;
the driving assembly is used for driving the curled screen to unfold or curl;
a monitoring component for monitoring the height of the rolled screen during unrolling or rolling of the rolled screen;
a controller for performing:
responding to a starting instruction input by a user, detecting that the current curled screen is not at an absolute zero position, and drawing up a speed curve and a height curve according to the height of the current curled screen and the total height of the curled screen;
controlling a curling screen to unwind or curl the curling screen according to a speed profile;
and controlling the curling screen to display a preset image according to the height curve.
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| PCT/CN2021/102289 WO2022001854A1 (en) | 2020-06-29 | 2021-06-25 | Display device and projection assembly correction method |
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| CN202110296907.7A Active CN113938725B (en) | 2020-06-29 | 2021-03-19 | Screen correction method of display device and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022188680A1 (en) * | 2021-03-11 | 2022-09-15 | 海信视像科技股份有限公司 | Display device and display method |
| CN117250902A (en) * | 2023-11-20 | 2023-12-19 | 石家庄学院 | Cloud classroom equipment control system and method based on Internet of things |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115243020A (en) * | 2022-07-18 | 2022-10-25 | 海信视像科技股份有限公司 | Image following method for projection equipment during screen lifting and projection equipment |
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Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4358792A (en) * | 1981-02-17 | 1982-11-09 | Zenith Radio Corporation | Precision screen elevating and control means for a projection television receiver |
| JPH03125783A (en) * | 1989-10-06 | 1991-05-29 | Tachikawa Blind Mfg Co Ltd | Obstruction-sensing stopper for motor-driven roll blind |
| US6452155B1 (en) * | 2000-09-28 | 2002-09-17 | Rockwell Collins, Inc. | Obstruction detection system and method having an alternating signal representative of a velocity of an object |
| CN1955835A (en) * | 2005-10-24 | 2007-05-02 | 精工爱普生株式会社 | Projector |
| CN103016927A (en) * | 2012-12-12 | 2013-04-03 | 中电科航空电子有限公司 | Device for unfolding and recycling liquid crystal display device and control method thereof |
| US20140218375A1 (en) * | 2013-02-05 | 2014-08-07 | Lg Electronics Inc. | Device equipped with flexible display and controlling method thereof |
| JP2017186807A (en) * | 2016-04-06 | 2017-10-12 | 那須野 邦夫 | Electric roll screen device and inclination detection sensor |
| CN107995975A (en) * | 2016-12-26 | 2018-05-04 | 深圳市柔宇科技有限公司 | A kind of control method and device of display screen |
| CN108351706A (en) * | 2015-11-18 | 2018-07-31 | 三星电子株式会社 | Electronic equipment with rollable display and its control method |
| US20180275763A1 (en) * | 2015-01-16 | 2018-09-27 | Samsung Electronics Co., Ltd. | Flexible device and method operating the same |
| CN209448774U (en) * | 2019-04-22 | 2019-09-27 | 北京小米移动软件有限公司 | Electronic equipment |
| CN110572629A (en) * | 2019-10-08 | 2019-12-13 | 江苏舜合物联网科技有限公司 | Control method of curled hidden laser television all-in-one machine |
| CN209945695U (en) * | 2019-05-29 | 2020-01-14 | 四川飞天联合系统技术有限公司 | Hanging display screen's on-off angle controlling means |
| CN110780529A (en) * | 2019-09-25 | 2020-02-11 | 深圳市火乐科技发展有限公司 | Projection screen and projection equipment |
| CN110908233A (en) * | 2019-12-06 | 2020-03-24 | 四川长虹电器股份有限公司 | Control system and method for integrated cabinet of ultra-short-focus projector |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6494239B2 (en) * | 2014-10-27 | 2019-04-03 | キヤノン株式会社 | Control device, control method, and program |
| CN104455984B (en) * | 2014-11-28 | 2016-03-30 | 海信集团有限公司 | A kind of screen level degree adjusting mechanism and projection display equipment |
| CN105227881B (en) * | 2015-09-15 | 2019-02-26 | 海信集团有限公司 | A kind of projected picture correcting method and projection device |
| CN205080358U (en) * | 2015-09-23 | 2016-03-09 | 上海晶唐智能科技有限公司 | Projection frame curtain |
| CN106572389A (en) * | 2015-10-08 | 2017-04-19 | 小米科技有限责任公司 | Method and apparatus for adjusting display image |
| CN107547880A (en) * | 2016-06-24 | 2018-01-05 | 上海顺久电子科技有限公司 | A kind of auto-correction method of projection imaging, device and laser television |
| CN106937101A (en) * | 2017-03-22 | 2017-07-07 | 成都市极米科技有限公司 | View field's bearing calibration and system |
| CN106773500B (en) * | 2017-04-07 | 2018-08-24 | 成都市极米科技有限公司 | More projection screen joining methods and device |
| CN107065419B (en) * | 2017-05-04 | 2019-09-20 | 张钒 | A kind of electronic any no-load voltage ratio projection screen |
| CN107728410B (en) * | 2017-09-30 | 2020-08-25 | 歌尔科技有限公司 | Image distortion correction method for laser projector and laser projector |
| CN108521566A (en) * | 2018-05-11 | 2018-09-11 | 青岛海信电器股份有限公司 | A kind of calibration method and device of projected image |
| CN109413402A (en) * | 2018-11-09 | 2019-03-01 | 四川长虹电器股份有限公司 | Adapt to the image correction system and method for any screen |
| CN110851214B (en) * | 2019-09-29 | 2021-01-29 | 深圳市火乐科技发展有限公司 | Projection picture control method and related product |
| CN210514927U (en) * | 2019-10-08 | 2020-05-12 | 江苏舜合物联网科技有限公司 | Curtain curling and lifting linkage structure for curling hidden type laser television all-in-one machine |
| CN110798670A (en) * | 2019-11-11 | 2020-02-14 | 成都极米科技股份有限公司 | Ultrashort-focus picture screen alignment method and device, ultrashort-focus projection equipment and medium |
| CN110989282A (en) * | 2019-12-27 | 2020-04-10 | 江苏尚阳数字影视有限公司 | Multifunctional spherical-screen cinema with liftable curtain rolling device |
| CN111273511B (en) * | 2020-02-25 | 2022-04-19 | 青岛海信激光显示股份有限公司 | Laser projection system and method for controlling ascending and descending of projection screen |
| CN111158209A (en) * | 2020-03-04 | 2020-05-15 | 江苏精研科技股份有限公司 | Electric floor-pulling curtain |
| CN111314682B (en) * | 2020-04-01 | 2022-04-29 | 成都极米科技股份有限公司 | Curtain picture display method and device and projection equipment |
| CN114520893B (en) * | 2020-11-18 | 2022-10-04 | 成都极米科技股份有限公司 | Picture projection method and device, projection equipment and readable storage medium |
-
2021
- 2021-03-19 CN CN202110297021.4A patent/CN113938727B/en active Active
- 2021-03-19 CN CN202110298513.5A patent/CN113938730B/en active Active
- 2021-03-19 CN CN202110298469.8A patent/CN113938728A/en active Pending
- 2021-03-19 CN CN202110296907.7A patent/CN113938725B/en active Active
- 2021-03-19 CN CN202110298485.7A patent/CN113938729A/en active Pending
- 2021-03-19 CN CN202110296908.1A patent/CN113938726B/en active Active
- 2021-03-19 CN CN202110298436.3A patent/CN114125518B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4358792A (en) * | 1981-02-17 | 1982-11-09 | Zenith Radio Corporation | Precision screen elevating and control means for a projection television receiver |
| JPH03125783A (en) * | 1989-10-06 | 1991-05-29 | Tachikawa Blind Mfg Co Ltd | Obstruction-sensing stopper for motor-driven roll blind |
| US6452155B1 (en) * | 2000-09-28 | 2002-09-17 | Rockwell Collins, Inc. | Obstruction detection system and method having an alternating signal representative of a velocity of an object |
| CN1955835A (en) * | 2005-10-24 | 2007-05-02 | 精工爱普生株式会社 | Projector |
| CN103016927A (en) * | 2012-12-12 | 2013-04-03 | 中电科航空电子有限公司 | Device for unfolding and recycling liquid crystal display device and control method thereof |
| US20140218375A1 (en) * | 2013-02-05 | 2014-08-07 | Lg Electronics Inc. | Device equipped with flexible display and controlling method thereof |
| US20180275763A1 (en) * | 2015-01-16 | 2018-09-27 | Samsung Electronics Co., Ltd. | Flexible device and method operating the same |
| CN108351706A (en) * | 2015-11-18 | 2018-07-31 | 三星电子株式会社 | Electronic equipment with rollable display and its control method |
| JP2017186807A (en) * | 2016-04-06 | 2017-10-12 | 那須野 邦夫 | Electric roll screen device and inclination detection sensor |
| CN107995975A (en) * | 2016-12-26 | 2018-05-04 | 深圳市柔宇科技有限公司 | A kind of control method and device of display screen |
| CN209448774U (en) * | 2019-04-22 | 2019-09-27 | 北京小米移动软件有限公司 | Electronic equipment |
| CN209945695U (en) * | 2019-05-29 | 2020-01-14 | 四川飞天联合系统技术有限公司 | Hanging display screen's on-off angle controlling means |
| CN110780529A (en) * | 2019-09-25 | 2020-02-11 | 深圳市火乐科技发展有限公司 | Projection screen and projection equipment |
| CN110572629A (en) * | 2019-10-08 | 2019-12-13 | 江苏舜合物联网科技有限公司 | Control method of curled hidden laser television all-in-one machine |
| CN110908233A (en) * | 2019-12-06 | 2020-03-24 | 四川长虹电器股份有限公司 | Control system and method for integrated cabinet of ultra-short-focus projector |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022188680A1 (en) * | 2021-03-11 | 2022-09-15 | 海信视像科技股份有限公司 | Display device and display method |
| CN117250902A (en) * | 2023-11-20 | 2023-12-19 | 石家庄学院 | Cloud classroom equipment control system and method based on Internet of things |
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| Publication number | Publication date |
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| CN113938726A (en) | 2022-01-14 |
| CN113938729A (en) | 2022-01-14 |
| CN113938725B (en) | 2023-05-05 |
| CN114125518B (en) | 2023-05-05 |
| CN113938727A (en) | 2022-01-14 |
| CN113938725A (en) | 2022-01-14 |
| CN113938727B (en) | 2023-05-05 |
| CN113938726B (en) | 2023-03-31 |
| CN113938730B (en) | 2023-05-05 |
| CN113938728A (en) | 2022-01-14 |
| CN113938730A (en) | 2022-01-14 |
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