WO2022001853A1 - Display device and screen correction method - Google Patents

Display device and screen correction method Download PDF

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Publication number
WO2022001853A1
WO2022001853A1 PCT/CN2021/102288 CN2021102288W WO2022001853A1 WO 2022001853 A1 WO2022001853 A1 WO 2022001853A1 CN 2021102288 W CN2021102288 W CN 2021102288W WO 2022001853 A1 WO2022001853 A1 WO 2022001853A1
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WO
WIPO (PCT)
Prior art keywords
screen
height
movement speed
speed increment
adjusting
Prior art date
Application number
PCT/CN2021/102288
Other languages
French (fr)
Chinese (zh)
Inventor
吴汉勇
贾亚洲
丁国耀
司洪龙
刘清友
甄凌云
王之奎
李晓平
陈许
王秉清
马会会
张安祺
于硕
刘晋
Original Assignee
海信视像科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202110296908.1A external-priority patent/CN113938726B/en
Application filed by 海信视像科技股份有限公司 filed Critical 海信视像科技股份有限公司
Priority to CN202180046281.2A priority Critical patent/CN116391155A/en
Publication of WO2022001853A1 publication Critical patent/WO2022001853A1/en

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Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00Projectors or projection-type viewers; Accessories therefor
    • G03B21/54Accessories
    • G03B21/56Projection screens
    • G03B21/58Projection screens collapsible, e.g. foldable; of variable area
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41Structure of client; Structure of client peripherals
    • H04N21/422Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing 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
    • H04N21/431Generation of visual interfaces for content selection or interaction; Content or additional data rendering
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00Details of colour television systems
    • H04N9/12Picture reproducers
    • H04N9/31Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]

Definitions

  • the present application relates to the technical field of display devices, and in particular, to a display device and a screen calibration method.
  • Laser TV is a TV product that uses a laser light source as a display light source and cooperates with projection display technology to form images. It is equipped with a special projection screen and can receive radio TV programs or Internet TV programs. In addition to the top-down unfolding screen, the laser TV also uses the bottom-up unfolding screen from the TV cabinet. The latter specifically sets the optical machine and the lifting screen in the TV cabinet. When the TV is turned on, the screen is removed from the TV cabinet. The middle slowly rises, and the image of the optical machine will hit the global position behind.
  • Some embodiments of the present application provide a display device, including:
  • the screen which is configured to be rolled up and down;
  • a drive assembly configured to drive the screen to unfold or curl
  • a monitoring component configured to monitor the state of the screen during the unfolding or rolling of the screen, and feed back the state information of the screen to the controller;
  • Controller configured as:
  • the drive assembly When it is determined according to the state information that the screen is in a non-horizontal state, the drive assembly is adjusted so that the drive assembly drives the first side of the screen to move at the adjusted speed and to restore the screen In the horizontal state, the moving speed of the first side and the second side of the screen is the same;
  • the driving assembly is not adjusted.
  • the controller is configured to:
  • the monitoring component includes an image collector
  • the state information is image information of the screen collected by the image collector
  • the first side height and the second side height are calculated from the image information.
  • the monitoring assembly includes an angle monitor, the angle monitor is configured to monitor the rotation angle of the drive assembly, and the state information is determined according to the corresponding relationship between the rotation angle and the movement of the drive assembly information, wherein the movement correspondence is the correspondence between the rotation angle of the drive assembly and the movement distance of the screen.
  • the controller when the screen is being raised and the height of the first side is higher than the height of the second side, the controller is configured to:
  • the movement speed increment is adjusted until the movement speed increment decreases to the movement speed increment supplement value.
  • the controller is configured to: at every preset interval, divide the current value of the movement speed increment by the step-back value to obtain the movement speed increment used in the next preset interval. quantity.
  • the controller is configured to:
  • the driving component Before determining whether the screen is in a horizontal state according to the state information, when the screen has not moved to the reference zero position, the driving component is controlled to drive the screen to move to the reference zero position.
  • Some embodiments of the present application provide a screen correction method, the method is applied to the screen in the process of unfolding or curling, including:
  • the driving component When it is determined that the screen is in a non-horizontal state according to the state information of the screen fed back by the monitoring component, the driving component is adjusted, so that the driving component drives the first side of the screen to move at the adjusted speed, and The moving speed of the first side and the second side of the screen is the same while the screen is restored to a horizontal state, wherein the driving component is configured to drive the screen to unfold or curl;
  • the driving assembly is not adjusted.
  • determining whether the screen is in a horizontal state according to the state information specifically:
  • the moving speed of the first side is adjusted, and the specific steps are:
  • the movement speed increment is adjusted until the movement speed increment decreases to the movement speed increment supplement value.
  • FIG. 1 is a schematic diagram of an operation scenario between a display device and a control apparatus according to one or more embodiments of the present application;
  • FIG. 2 is a block diagram of a hardware configuration of a display device 200 according to one or more embodiments of the present application;
  • FIG. 3 is a block diagram of the hardware configuration of the control device 100 according to one or more embodiments of the present application;
  • FIG. 4 is a schematic diagram of software configuration in a display device 200 according to one or more embodiments of the present application.
  • 5A-5B are schematic structural diagrams of a curling laser device according to one or more embodiments of the present application.
  • 6-8 are schematic diagrams of components of a curling laser device according to one or more embodiments of the present application.
  • FIG. 9 is a schematic diagram of image projection according to one or more embodiments of the present application.
  • 10A-10B are schematic diagrams of software of a curling laser device according to one or more embodiments of the present application.
  • 11-13, 14A-14B, 15, 16A-16C and 17 are schematic diagrams of image cropping according to one or more embodiments of the present application.
  • FIG. 18 is a schematic diagram of a display interface according to one or more embodiments of the present application.
  • 19A-19B are schematic diagrams of projection screens according to one or more embodiments of the present application.
  • 20A-20B are flowcharts of a screen calibration method according to one or more embodiments of the present application.
  • 21 is a schematic diagram of a preset speed curve according to one or more embodiments of the present application.
  • 22 is a schematic diagram of a speed curve provided according to one or more embodiments of the present application.
  • FIG. 23 is a flowchart of exception handling provided according to one or more embodiments of the present application.
  • FIG. 1 is a schematic diagram of an operation scenario between a display device and a control device according to one or more embodiments of the present application.
  • a user can operate the display device 200 through a mobile terminal 300 and the control device 100 .
  • the control apparatus 100 may be a remote control, and the communication between the remote control and the display device includes infrared protocol communication, Bluetooth protocol communication, and wireless or other wired ways to control the display device 200 .
  • the user can control the display device 200 by inputting user instructions through keys on the remote control, voice input, control panel input, and the like.
  • mobile terminals, tablet computers, computers, notebook computers, and other smart devices may also be used to control the display device 200 .
  • the mobile terminal 300 may install a software application with the display device 200 to implement connection communication through a network communication protocol, so as to achieve the purpose of one-to-one control operation and data communication.
  • the audio and video content displayed on the mobile terminal 300 may also be transmitted to the display device 200 to realize a synchronous display function.
  • the display device 200 also performs data communication with the server 400 through various communication methods.
  • the display device 200 may be allowed to communicate via local area network (LAN), wireless local area network (WLAN), and other networks.
  • the server 400 may provide various contents and interactions to the display device 200 .
  • the display device 200 may be a liquid crystal display, an OLED display, or a projection display device.
  • the display device 200 may additionally provide an intelligent network television function that provides a computer-supported function in addition to the function of broadcasting and receiving television.
  • FIG. 2 exemplarily shows a configuration block diagram of the control apparatus 100 according to an exemplary embodiment.
  • 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 device 100 can receive the user's input operation instruction, and convert the operation instruction into an instruction that the display device 200 can recognize and respond to, and play an intermediary role between the user and the display device 200 .
  • 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.
  • 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 is a block diagram showing a hardware configuration of the display apparatus 200 according to an exemplary embodiment.
  • the display device 200 includes a tuner 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 a user interface 280 .
  • the controller includes a central processing unit, a video processing unit, an audio processing unit, a graphics processing unit, a RAM, a ROM, and a first interface to an nth interface for input/output.
  • the display 260 may be at least one of a liquid crystal display, an OLED display, a touch display, and a projection display, and may also be a projection device and a projection screen.
  • the tuner-demodulator 210 receives broadcast television signals through wired or wireless reception, and demodulates audio and video signals, such as EPG data signals, from a plurality of wireless or wired broadcast television signals.
  • the detector 230 is used to collect external environment or external interaction signals.
  • the controller 250 and the tuner 210 may be located in different separate devices, that is, the tuner 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.
  • the controller 250 controls the operation of the display device and responds to user operations.
  • the controller 250 controls the overall operation of the display apparatus 200 .
  • a user may input a user command on a graphical user interface (GUI) displayed on the display 260, and the user input interface receives the user input command through the graphical user interface (GUI).
  • GUI graphical user interface
  • the user may input a user command by inputting a specific sound or gesture, and the user input interface recognizes the sound or gesture through a sensor to receive the user input command.
  • a "user interface” is a medium interface for interaction and information exchange between an application program or an operating system and a user, which enables conversion between an internal form of information and a form acceptable to the user.
  • the commonly used form of user interface is Graphical User Interface (GUI), which refers to a user interface related to computer operations displayed in a graphical manner. It can be an icon, window, control and other interface elements displayed on the display screen of the electronic device, wherein the control can include icons, buttons, menus, tabs, text boxes, dialog boxes, status bars, navigation bars, Widgets, etc. at least one of the visual interface elements.
  • GUI Graphical User Interface
  • FIG. 4 is a schematic diagram of software configuration in the display device 200 according to one or more embodiments of the present application.
  • the system is divided into four layers. Layer)
  • the Application Framework layer referred to as the "framework layer”
  • the Android runtime (Android runtime)
  • the system library layer referred to as the “system runtime layer”
  • the kernel layer contains at least one of the following drivers: audio driver, display driver, Bluetooth driver, camera driver, WIFI driver, USB driver, HDMI driver, sensor driver (such as fingerprint sensor, temperature sensor, pressure sensor, etc.), and power supply drive etc.
  • FIGS. 5A-5B are schematic structural diagrams of a curling laser device according to one or more embodiments of the present application
  • FIGS. 6-8 are schematic diagrams of components of a curling laser device according to one or more embodiments of the present application; FIGS. 5A and 5B 6.
  • the rolling screen 275 in this embodiment can be driven by the driving component 276 to complete the rolling or extending action.
  • the drive assembly 276 includes a plurality of sets of lifting assemblies and beams 231, each set of lifting assemblies includes a lifting frame 232, a lifting motor 233 and a reduction gear set 234; the first end of the lifting frame 232 is rotatably connected to the base 21, and the The two ends are rotatably connected to the beam 231 , the reduction gear set 234 is respectively connected to the lift motor 233 and the lift frame 232 , the second side of the curling screen 275 is fixedly connected to the beam 231 ; the lift motor 233 can drive the lift frame through the reduction gear set 234 When the lift frame 232 is lifted, the beam 231 is supported to unwind and roll the screen 275 .
  • the lift motor 233 and the reduction gear set 234 are fixed on the base 21 , and the reduction gear set 234 is fixedly connected to the first end of the lift frame 232 .
  • the gears included in the reduction gear set 234 are rotatably fixed on the base 21 through the gear bracket, or the gears in the reduction gear set 234 except the gears connected with the lift frame 232 and/or the lift motor 233 can be rotatably fixed on the base 21 through the gear bracket. It is rotatably fixed on the base 21 .
  • the curling screen 275 can be in three states: the first is that the curling screen 275 needs to be curled up in a non-playing scene to reduce the occupied space of the display device. At this time, the curling screen 275 is in a rolling state. For details, please refer to FIG. 7 . In the second play scenario, the curling screen 275 needs to be extended, so that the extended screen can carry the media resources projected by the projection component 278 . For details, please refer to Figure 8.
  • the third is a transition state (not shown) in which the curling screen 275 is in a state of transition between the rolled state and the expanded state during the upward or downward movement of the curling screen 275 .
  • the roll-up screen 275 can carry the media assets projected by the projection component 278, presenting the media assets to the user.
  • the curling screen 275 can also be an OLED screen, which directly displays media resources to the user.
  • the media resource may be an image or a video, wherein the video is displayed as a frame-by-frame image, so in this embodiment, the media resource may be collectively referred to as an image.
  • the curled screen 275 may be a diffuse screen, or a retrograde screen.
  • the drive assembly 276, connected to the curling screen 275, is configured to drive the curling screen 275 to move, including upward movement or downward movement.
  • the driving component 276 can drive the curling screen 275 to rewind or extend based on the control of the controller 250.
  • the drive assembly 276 may be a retractable crawler or a motor in some embodiments.
  • the motor can be set with a motor at the left and right ends of the screen, or a reel lift motor can be set in the middle of the screen, and a motor can be set at the left and right ends of the lift screen. Reel lift motor.
  • the monitoring component 277 includes an image collector, and accordingly, the information monitored by the monitoring component 277 may be image information.
  • the monitoring component 277 includes a camera, and the corresponding monitoring information can be obtained by taking pictures of the screen.
  • the number of cameras 279 may be one or more, wherein, at least one camera has a camera area that is a curled screen area, and the camera is used to take pictures of the screen and display images during the lifting process. When the number of cameras is 2, the two cameras are respectively arranged on two sides of the projection assembly.
  • the camera can be rotated on a horizontal plane, and when it is necessary to take a picture of the screen and display an image, the camera is rotated to the screen orientation; when it is required to take a photo of the user, the camera is rotated to the user.
  • the monitoring assembly 277 includes an angle monitor to monitor the real-time rotational angle of the drive assembly 276 .
  • the monitoring component 277 includes a gravitational acceleration sensor. During the rotation of the driving component 276, by monitoring the information of the gravity sensor in three directions of the space coordinate system (x, y, z), any arbitrary information of the driving component 276 can be obtained. The posture corresponding to the moment. The rotation angle of the driving assembly 276 is calculated according to the attitude.
  • the monitoring component 277 includes an infrared sensor, and the information monitored by the corresponding monitoring component 277 is whether there is a foreign object above the curling screen.
  • the screen curling and unrolling may be that the screen rises from bottom to top or descends from top to bottom, or can be unrolled from left to right or right to left.
  • the present application describes the direction and form of screen curling and unrolling Not limited.
  • the user presses the power-on button of the control device or the power-on button on the display device to power on the projection assembly and the controller.
  • the control slide is opened and the notification screen rises to offset zero.
  • the sliding cover is used to cover the top of the screen in the rolled state when the screen is in the rolled state, so as to prevent dust from falling on the surface of the screen.
  • the screen control system and the start-up display service are run.
  • the screen control system is connected to the monitoring component, and the status parameters of the drive component are obtained through the monitoring component, so as to obtain information such as the height and status of the screen, and the start-up display service is ready to play Preset image.
  • the preset image may be a preset picture, a preset animation or video, or a preset start-up advertisement or the like.
  • the controller will poll and send instructions to the monitoring component, so as to obtain information such as the current status and height of the screen provided by the monitoring component.
  • the controller judges whether the current screen is at a position relative to the zero point according to the height and status information of the screen. If the current screen does not reach the relative zero position, judge whether the difference between the time when the notification screen rises to the relative zero point and the current time exceeds the preset time difference; if the difference between the time when the notification screen rises to the relative zero point and the current time does not exceed the preset time difference If the difference between the time when the notification screen rises to the relative zero point and the current time exceeds the preset time difference, it means that the detection is overtime and an alarm prompt will be issued.
  • FIG. 9 is a schematic diagram of image projection according to one or more embodiments of the present application.
  • the graphic image service collects layers (layers) drawn by different applications, synthesizes a bitmap, and combines the The image is sent to the projection component so that the projection component projects the image onto the screen.
  • the preset speed curve refers to a curve between time and screen height
  • the preset height curve refers to a curve between time and preset image display height.
  • the preset height curve and the preset speed curve can be consistent from the relative zero point to the highest point.
  • controlling the screen to ascend according to the preset speed curve and the power-on display service playing the preset image according to the preset height curve may be performed simultaneously or sequentially.
  • FIGS. 10A-10B are schematic diagrams of software of a curling laser device according to one or more embodiments of the present application.
  • the software architecture includes: a geometric computing service is used to connect a camera to capture images, Real-time processing is performed and the calculation results are fed back to the on-screen control system of the controller.
  • the geometric calculation service also includes data acquisition, data processing, feature calculation, and result distribution.
  • the screen control system is used to control the screen, perform automatic geometric correction, and provide real-time screen rising status information to upper-layer applications.
  • the screen control system also includes: transport layer, protocol layer, business layer, etc.; the application includes startup animation, setting, and shutdown animation, all of which are used to control the playback of the current effective display interface in real time through the screen control system; the graphic image service is responsible for synthesizing and displaying images, The graphic image service also includes: a media player, a graphic image processing module, and the like.
  • the camera collects data and sends it to the geometric computing service; the geometric computing service calculates the curling or unfolding state of the current screen and the display area state of the laser display in real time; In the unfolded state, the speed of the left and right motors is dynamically adjusted to keep the screen horizontal; the laser projection matrix is dynamically adjusted according to the state of the display area displayed by the laser, so as to achieve the effect that the optical-mechanical projection is always forward; applications such as boot animation can read the curl or Expand the status information, dynamically adjust the effective display area in the current business module to match the height of the screen display; the boot animation and other uses are displayed through the graphic image service.
  • the step of obtaining the height of the screen includes: the controller obtains image information of the current screen through an image collector, and measures the height of the screen according to the image information to obtain the height of the current screen. Determine whether the height of the current screen is lower than the display height of the preset image; wherein, the height of the current screen is obtained according to the information fed back by the monitoring component, and the display height of the preset image can be obtained according to the preset height curve and the current time.
  • the current preset image is divided into the first image and the second image according to the height of the screen; for example, the controller may The width of the screen is used to generate a display area; the first coordinate corresponding to the display area is read; the image corresponding to the first coordinate in the preset image is the second image, and the rest of the images are the first image.
  • the first coordinate system is established with the lower left corner of the screen as the origin.
  • the second coordinate system is established with the lower left corner of the preset image as the origin.
  • the coordinate system 1 is the first Coordinate system
  • coordinate system 2 is the second coordinate system.
  • the size of the screen is 1920mm*1080mm
  • the screen can be cut into 1920*1080 display blocks, and the coordinate value of each display block in the first coordinate system is known .
  • the controller calculates that the height of the screen is 678mm at a certain moment, and the first coordinates corresponding to the display area are: (0,0)(0,1)...(0,1920); (1, 0)(1,1)...(1,1920);...(678,0)(678,1)...(678,1920).
  • the image corresponding to the first coordinate in the preset image is the second image, and the rest of the images are the first images.
  • FIG. 12 The image corresponding to the first coordinate in the preset image is the second image, and the rest of the images are the first images.
  • the size of the screen is 1920mm*1080mm.
  • the controller calculates that the height of the screen is 678mm at a certain moment, the image corresponding to the preset image with a height of 678mm from the bottom is the second image, and the rest of the images are the first image.
  • Blackout processing is performed on the first image to obtain a processed image; for example, a floating layer window can be set on the upper layer of the first image, the size of the floating layer window is equal to the size of the first image, and the floating layer window is used to load the black interface,
  • the final processed image can be seen in Figure 14A.
  • the color of each pixel in the first image may be set to black, and the finally obtained processed image may refer to FIG. 14B .
  • the graphic image service divides and masks the preset image, it sends the processed image to the projection component, so that the projection component projects the processed image on the screen.
  • the screen continues to rise according to the preset speed curve and the preset image is projected according to the preset height curve.
  • the processed image projected out can refer to FIG. 15 .
  • the methods provided by some embodiments of the present application are also applicable to the shutdown process.
  • the current preset image is cut into the first image and the second image according to the height of the screen, and the projection component is controlled to project the first image on the current screen.
  • the projection component is controlled to project the first image on the current screen.
  • the screen for example, crop the preset image horizontally at the height of the screen from the top to obtain the first image and the second image.
  • the upper part of the laser projection area can be replaced by a black image or black pixels.
  • the graphic image service combines the black image with the first image after coordinate transformation. into a processed image, and display the processed image on the current screen.
  • the coordinate transformation method subtracts the difference between the highest point of the screen and the current screen height from the ordinate of the first image, and the abscissa remains unchanged.
  • the size of the screen is 1920mm*1080mm
  • the screen can be cut into 1920*1080 display blocks, and the coordinate value of each display block in the first coordinate system is known.
  • the controller calculates that the height of the screen is 678mm at a certain moment, and the preset image is horizontally cropped at a height of 678mm from the top to obtain the first image and the second image. As shown in Fig.
  • the coordinates of the current first image are (1080,0)(1080,1)...(1080,1920);(1079,0)(1079,1)...(1079,1920);... ...(402,0)(402,1)...(402,1920); the difference between the highest point of the screen and the current screen height is 402.
  • the ordinate of the first image is subtracted by 402 to obtain the first image.
  • the coordinates of the image are (402,0)(402,1)...(402,1920);(401,0)(401,1)...(401,1920);...(0,0)(0, 1)...(0,1920), as shown in Figure 16B.
  • the upper part of the laser projection area can be replaced by an all-black image or all-black pixels, and the graphic image service merges the all-black image and the coordinate-transformed first image into a processed image, as shown in FIG. 16C .
  • the graphic image service After the graphic image service performs cropping, coordinate conversion, and blackout processing on the preset image, it sends the processed image to the projection component, so that the projection component projects the processed image on the screen.
  • the projected image can be referred to FIG. 17 .
  • the methods provided by some embodiments of the present application are also applicable to the shutdown process.
  • the preset image is cropped to be the same height as the current screen, and when the projection component projects the image, only the current screen area is projected. This method only has laser projection on the screen and no projection outside the screen, which is more in line with the design constraints and will not leak light to the outside of the screen.
  • the user presses the power-on button of the control device or the power-on button on the display device to power on the projection assembly and the controller, the controller notifies the screen to rise, the system blocks sound and keys, and the projection assembly does not project images,
  • the boot animation program cyclically detects the current screen rising status by reading GPIO, etc. After the screen rises to the highest point, the boot animation program notifies the projection component to project the image, and releases the button shielding and sound shielding to enter the main system.
  • the user powers up the projection assembly and the controller by pressing the power button of the control device or pressing the power button on the display device. The controller notifies that the screen goes up and, at the same time, blocks keystrokes and sounds.
  • the projection assembly does not project an image, but the image is still playing in the background.
  • the purpose of shielding the buttons and sounds is to prevent the sound attached to the image from being played or the user accidentally pressing the button on the control device to trigger the corresponding function, so as to make the user mistakenly think that there is an error in the operation of the display device, delay the boot process, and cause a bad user experience.
  • the projection component is controlled to project a preset image and release the key and sound shielding; wherein, the preset height can be half of the total height of the screen.
  • FIG. 18 is a schematic diagram of a display interface according to one or more embodiments of the present application.
  • the screen When it is detected that the screen has risen to the preset height, the screen will display a prompt message, prompting "the screen is starting, press any key to turn on the screen” and release the key shield. At this time, only the font is colored, and other areas are black, such as shown in Figure 18. If it is detected that the user manually triggers the button after the prompt information is displayed, the screen brightening action is triggered, and the projection component is controlled to project a preset image and cancel the sound shielding.
  • the preset image rises according to the preset speed curve; the height of the screen is obtained in real time, if the height of the screen is lower than the display height of the preset image, the preset image is processed according to the height of the screen, so that the display height of the preset image is the same as that of the screen. Match the rising height; if it is not detected that the user manually triggers the button after the prompt message is displayed, and after the screen rises to the highest point, control the projection component to project the preset image and release the sound shielding.
  • 19A-19B are schematic diagrams of projection screens according to one or more embodiments of the present application; as shown in FIG. 19 , when the height of the first side of the screen and the height of the second side of the screen are inconsistent during the rising process of the screen, the screen is in a non-horizontal state .
  • the step of judging whether the screen is horizontal by using the image information of the screen collected by the image collector is: according to the collected screen image information and the reference position information of the image collector, calculate The height of the first side and the height of the second side of the screen, namely the height of the first side and the height of the second side. If the absolute value of the height difference between the height of the first side and the height of the second side is less than or equal to the difference threshold, it is determined that the screen is in a horizontal state. If the absolute value of the height difference between the height of the first side and the height of the second side is greater than the difference threshold, it is determined that the screen is in a non-horizontal state.
  • the difference threshold may be empirical data pre-stored in the controller.
  • the display device includes two groups of driving assemblies, and the rotation angle information of the two groups of driving assemblies is respectively monitored by the angle monitors.
  • the heights on both sides are calculated separately from the rotation angle information.
  • the display device includes two groups of driving components, and the two groups of driving components respectively drive two sides of the screen to move. According to the rotation angle information of the two groups of driving components monitored respectively, the heights of the two sides are calculated respectively.
  • the controller is configured to perform: during the movement of the screen, when it is determined that the screen is in a non-horizontal state according to the state information of the screen monitored by the monitoring component, adjust the driving component so that the driving component drives The first side of the screen moves at the adjusted speed, and the moving speeds of the first side and the second side of the screen are the same while the screen is restored to a horizontal state.
  • the driving component is not adjusted, that is, the screen is driven to move at the original speed.
  • the movement speed of the uppermost side of the screen may be adjusted based on the lowermost side of the screen. That is, if the height of the first side is higher than the height of the second side, adjusting the moving speed of the first side actually reduces the moving speed of the first side while maintaining the moving speed of the second side unchanged.
  • the movement speed of the lowermost side of the screen may be adjusted based on the uppermost side of the screen. That is, if the height of the first side is lower than the height of the first side, adjusting the moving speed of the first side actually increases the moving speed of the first side while maintaining the moving speed of the second side unchanged.
  • the drive components can also be in one group or in multiple groups. Some embodiments of the present application take two groups of drive assemblies as examples to describe the specific process of adjusting the speed.
  • the two sets of driving assemblies in some embodiments of the present application are respectively used to drive the first side movement and the second side movement of the screen.
  • the controller directly controls the rotation of the drive assembly, that is, controls the angular velocity of the motor.
  • the motor converts its angular velocity to the linear velocity of the screen.
  • the thickness of the screen used for the screen is relatively small, and the amount of change in the radius of the rotating shaft in the process of rising or falling of the screen is ignored.
  • the screen is in the rising process and the height of the first side is lower than the height of the second side, it means that the moving speed of the first side is slower than that of the second side. Then, adjusting the moving speed of the first side based on the second side is actually increasing the moving speed of the first side.
  • the specific process of adjusting the moving speed of the first side is as follows: according to the height difference Z between the height of the first side of the screen and the height of the second side of the screen, and the preset adjustment time T (it is expected to complete the adjustment within the preset adjustment time), determine the screen first.
  • the calculation formula of the incremental replenishment amount dd ⁇ of moving speed is: [TH2/t-H/t]-[TH1/t-H/t].
  • TH2 and TH1 are the height of the first side and the height of the second side of the screen, respectively.
  • t is the current rising time
  • H is the theoretical height of the current screen rising
  • the calculation formula is:
  • r1 is the inner diameter of the reel
  • h is the thickness of the screen
  • x is the current number of turns
  • r2 is the maximum radius of the reel when the screen is not unfolded.
  • the specific process of adjusting the movement speed increment by using the backstepping algorithm is as follows: at every preset interval, the value of the current movement speed increment is divided by a backstep value, for example, the value of the current movement speed increment can be divided by two. Use the obtained movement speed increment as the movement speed increment used in the next preset interval.
  • the incremental adjustment value of the movement speed is issued every 500ms, that is, a step backward every 500ms.
  • the regression algorithm of dv2, dv2/2, dv2/4...dd ⁇ adjust the screen movement speed in increments of the backward movement speed.
  • the monitoring component monitors whether the state of the screen is level in real time.
  • the incremental supplementary value dd ⁇ of the movement speed is directly issued to the movement speed of the first side of the screen. If it is detected that the screen is not in a horizontal state, the movement speed increment will continue to be issued to the movement speed of the first side of the screen in the form of a regression algorithm, until the movement speed increment is degraded to the movement speed increment supplementary value dd ⁇ .
  • a non-regressive algorithm can also be used to adjust the movement speed increment. The specific process is: always adjust the movement speed of the first side by the movement speed increment, and when the adjustment time reaches the preset adjustment time, the movement speed The increment is directly reduced to the movement speed increment supplementary value dd ⁇ .
  • the screen is in the rising process and the height of the first side is higher than the height of the second side, it means that the moving speed of the first side is faster than that of the second side. Then, adjusting the moving speed of the first side based on the second side is actually reducing the moving speed of the first side.
  • the specific process of adjusting the movement speed of the first side is: while reducing the movement speed of the first side by the movement speed increment (the movement speed increment is a negative value at this time), use the backward algorithm to adjust the movement speed increment until the movement speed increases. The amount drops to the movement speed incremental replenishment value.
  • the calculation method of the movement speed increment and the movement speed increment supplementary value refers to the above-mentioned embodiment.
  • the screen if the screen is in the process of descending and the height of the first side is lower than the height of the second side, it means that the moving speed of the first side is faster than that of the second side. Then, adjusting the moving speed of the first side based on the second side actually reduces the moving speed of the first side while maintaining the moving speed of the second side unchanged.
  • the screen if the screen is in the process of descending and the height of the first side is higher than the height of the second side, it means that the moving speed of the first side is slower than that of the second side.
  • adjusting the moving speed of the first side based on the second side actually increases the moving speed of the first side while maintaining the moving speed of the second side unchanged.
  • adjusting the moving speed of the first side reference may be made to the foregoing embodiment, which will not be repeated in this embodiment.
  • the controller is further configured to execute: after the screen is moved to the top, when it is determined that the screen is in a non-horizontal state according to the state information of the screen monitored by the monitoring component, control the driving component to drive the screen.
  • the lowest side continues to rise, while the highest side that does not drive the screen continues to rise until the screen returns to a horizontal state. Determining whether the screen is in a horizontal state has been described in detail above, and will not be repeated here. Based on the above embodiment, if the screen is raised to the top, the screen is in a non-horizontal state.
  • the movement time is calculated (the movement process of the lowest side is still at a constant speed during this process), that is, the absolute value of the height difference for the lowest side to move at the current moving speed is required. time spent.
  • the driving component drives the lowest side to continue to rise at the current moving speed until the time when the screen returns to the horizontal state, that is, the time when the lowest side continues to rise reaches the moving time, and the screen returns to the horizontal state.
  • the screen if the screen is raised to the top, the screen is not horizontal. Then, the driving component on the lowest side is controlled to drive the lowest side to continue to rise, and at the same time, the driving component on the highest side is turned off, that is, the highest side is not driven to continue to rise. In the process of driving the lowermost side to continue to rise, continue to receive the status information of the screen fed back by the monitoring component, and continue to determine whether the screen returns to a horizontal state according to the status information. If it is determined that the screen is still in a non-horizontal state, continue to control the driving component of the lowest side to drive the lowest side to continue to rise. Until it is determined that the screen returns to the horizontal state according to the feedback status information.
  • FIGS. 20A-20B are flowcharts of a screen correction method according to one or more embodiments of the present application; with reference to FIG. 20A , the method includes the following steps: During the curling process (only the constant speed stage is involved), the monitoring component monitors the status of the screen and feeds back the status information of the screen to the controller. The controller determines whether the screen is in a horizontal state according to the state information of the screen. If the screen is in a non-horizontal state, the controller adjusts the drive assembly so that the drive assembly drives the first side of the screen to move at the adjusted speed, and the screen returns to a horizontal state while the screen is restored The first side and the second side move at the same speed. If the screen is horizontal, the drive assembly is not adjusted, that is, the two sides of the screen move at the original speed. Meanwhile, the monitoring component continues to monitor the status of the screen, and periodically sends the status information of the screen to the controller.
  • An embodiment of the present application provides another method for calibrating a screen of a display device.
  • the method includes the following steps: the screen is in the process of unwinding or curling (only the constant speed stage is involved), the monitoring component monitors the state of the screen, and sends a message to the screen.
  • the controller feeds back the status information of the screen.
  • the controller calculates the height of the first side and the height of the second side of the screen according to the state information of the screen, and simultaneously calculates the absolute value of the height difference between the first side and the second side.
  • the controller also pre-stores the difference threshold of the height difference.
  • the driving assembly does not need to be adjusted. If the absolute value of the height difference between the first side and the second side is greater than the difference threshold, it is determined that the screen is in a non-horizontal state, and the drive assembly needs to be adjusted to adjust the moving speed of the first side of the screen based on the second side of the screen, that is, not to Adjust the moving speed of the second side, and adjust the moving speed of the first side, so that the heights of the first side and the second side are consistent (the absolute value of the height difference is less than or equal to the difference threshold), and the moving speed of the first side and the second side is at the same time.
  • the curling screen is controlled to ascend according to a preset speed curve, wherein the preset speed curve refers to a curve between time and curling screen height, and the preset height curve refers to a curve between time and preset image display height.
  • the curve of time vs. curl screen height and the curve of time vs. preset image display height can be the same or different.
  • FIG. 21 is a schematic diagram of a preset speed curve according to one or more embodiments of the present application. The preset speed curve adopts the default ascending curve parameters of the display device when it leaves the factory, as shown in Route 1 in FIG. 21 .
  • Hmax is the total height of the screen rising this time
  • t is the current time
  • Tmax is the total time that the screen is rising this time.
  • the actual height and ascent time of each ascent will be used as the basis, and stored in the historical database as a reference for the next startup.
  • the specific implementation method is as follows: 1. In the interface design, design an interface for adding the screen to rise according to the parameters (pass the current rising height and the total time to the screen as parameters). 2. Each time the machine is powered on, the parameters of the current boot (for example, the ascent time, according to the real-time altitude, the total duration through the curve formula, inversely deduce the speed, acceleration and other information of the current ascent). 3. Due to aging, temperature and humidity are gradually affected, so nearly 10 times of startup can be taken as the basis for calculating the initial speed, height and acceleration of this startup. 4.
  • the user interface shows that the system fits a new rising curve according to the calculated parameters.
  • the control screen display image rises.
  • the serial port command is sent to the monitoring component, and it rises synchronously. 5.
  • the parameters of this startup will be included in the rising curve database again for the next startup.
  • the height of the curling screen specifically refers to the distance between the highest point of the curling screen and the bottom (absolute zero point) of the curling screen.
  • the method for calculating the height of the curling screen includes: the controller obtains the number of rotations of the driving component through the monitoring component; the screen display calculation service run by the controller calculates the current height of the curling screen according to the number of rotations of the driving component.
  • FIG. 22 is a schematic diagram of a speed curve provided according to one or more embodiments of the present application. During this process, a graph of time versus curling screen height is shown in Figure 22.
  • the reset state refers to re-entering the normal boot process after the curling screen is lowered to the absolute zero point.
  • FIG. 23 is a flowchart of exception handling provided in accordance with one or more embodiments of the present application.
  • the screen control system polls and sends an instruction to the monitoring component to obtain the current state, height and abnormal information of the curling screen, it controls the graphic image service to stop sending images to the projection component; controls the curling screen to enter reset (reset) ) state, when the curling screen drops to the absolute zero point and then rises to the relative zero point, the screen control system sends a screen-raising command to control the curling screen to rise according to the preset speed curve, and at the same time, notify the graphic image service to send the image to the preset curve according to the preset curve.
  • the projection assembly projects onto the curled screen.
  • the screen control system still needs to poll and send an instruction to the monitoring component to obtain information such as the current state and height of the curling screen.
  • the rising height of the curling screen and the display height of the image are kept in sync.
  • the monitoring component feeds back the state to the screen control system, and the curling screen is lifted up.
  • the step of keeping the rising height of the curling screen and the display height of the image in a synchronized state specifically includes: acquiring the current height of the curling screen in real time, and comparing the current height of the curling screen with the display height of the image. If the height of the current curling screen is lower than the display height of the image, the image will be cropped to the same size as the height of the curling screen, and the area of the non-curling screen will be blacked out; if the height of the current curling screen is not lower than the display height of the image, continue to follow the The preset curve rises to curl the screen and display the image.
  • the projection assembly is controlled to project a user interface on the curling screen, and the user interface includes abnormal information prompt information.
  • the abnormal information prompt information includes abnormal information prompt text and abnormal information prompt box.
  • the abnormal information prompt box has a certain height, which can be set as a preset height.
  • the steps of controlling the projection component to project the user interface include: determining the effective display area and the non-effective display area of the user interface according to the current height of the curling screen; masking the non-effective display area; judging whether the current curling screen height exceeds a preset height; When the height of the curling screen does not exceed the preset height, set the abnormal information prompt text at the preset position of the effective display area to obtain the processed user interface; if the current curling screen height exceeds the preset height, set the abnormal information prompt box in The preset position of the effective display area is obtained, and the processed user interface is obtained; the projection component is controlled to project the processed user interface onto the curling screen.

Abstract

Disclosed are a display device and a screen correction method. The method comprises: using a monitoring assembly to monitor the state of a screen in real time, and determining, according to state information of the screen, whether the screen is in a horizontal state. If it is determined that the screen is in a horizontal state, a drive assembly is not adjusted, and therefore, the moving state of the screen does not need to be adjusted. If it is determined that the screen is not in a horizontal state, the drive assembly is adjusted, so that a first side of the screen moves at the adjusted speed. Finally, the moving speed of the first side and a second side of the screen is consistent while the screen is enabled to be restored to the horizontal state.

Description

显示设备及屏幕校正方法Display device and screen calibration method
本申请要求于2021年3月19日提交的、申请号为202110296908.1、申请名称为“一种显示设备”;于2021年3月19日提交的、申请号为202110298436.3、申请名称为“一种显示设备”;于2021年3月19日提交的、申请号为202110296907.7、申请名称为“显示设备的屏幕校正方法和显示设备”;于2021年3月19日提交的、申请号为202110298485.7、申请名称为“显示设备的屏幕校正方法和显示设备;于2021年3月19日提交的、申请号为202110297021.4、申请名称为“一种显示设备;于2020年6月29日提交的、申请号为202010603016.7、申请名称为“一种显示设备”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。This application is required to be submitted on March 19, 2021, the application number is 202110296908.1, and the application name is "a display device"; submitted on March 19, 2021, the application number is 202110298436.3, and the application name is "a display device" equipment"; submitted on March 19, 2021, application number 202110296907.7, application name "screen calibration method and display device for display equipment"; submitted on March 19, 2021, application number 202110298485.7, application name It is "screen calibration method and display device for display devices; submitted on March 19, 2021, application number 202110297021.4, and the application name is "a display device; submitted on June 29, 2020, application number 202010603016.7 , the priority of the Chinese patent application entitled "A Display Device", the entire contents of which are incorporated herein by reference.
技术领域technical field
本申请涉及显示设备技术领域,具体而言,涉及一种显示设备及屏幕校正方法。The present application relates to the technical field of display devices, and in particular, to a display device and a screen calibration method.
背景技术Background technique
激光电视是采用激光光源作为显示光源并配合投影显示技术成像,配备专用投影幕,可接收广播电视节目或互联网电视节目的电视产品。激光电视除了采用自上而下展开的屏幕,还采用从电视柜中自下而上展开屏幕,后者具体是将光机和升降屏幕设置在电视柜中,当电视开启时,屏幕从电视柜中徐徐上升,光机的图像会打在后面的全局位置。Laser TV is a TV product that uses a laser light source as a display light source and cooperates with projection display technology to form images. It is equipped with a special projection screen and can receive radio TV programs or Internet TV programs. In addition to the top-down unfolding screen, the laser TV also uses the bottom-up unfolding screen from the TV cabinet. The latter specifically sets the optical machine and the lifting screen in the TV cabinet. When the TV is turned on, the screen is removed from the TV cabinet. The middle slowly rises, and the image of the optical machine will hit the global position behind.
发明内容SUMMARY OF THE INVENTION
本申请一些实施例提供一种显示设备,包括:Some embodiments of the present application provide a display device, including:
屏幕,被配置为可卷曲升降;The screen, which is configured to be rolled up and down;
驱动组件,被配置为驱动所述屏幕展开或卷曲;a drive assembly configured to drive the screen to unfold or curl;
监测组件,被配置为在所述屏幕展开或卷曲过程中,监测所述屏幕的状态,并向控制器反馈所述屏幕的状态信息;a monitoring component, configured to monitor the state of the screen during the unfolding or rolling of the screen, and feed back the state information of the screen to the controller;
控制器,被配置为:Controller, configured as:
在根据所述状态信息确定所述屏幕为非水平状态时,调节所述驱动组件,以使所述驱动组件驱动所述屏幕的第一侧按照调节后的速度移动,以及以使所述屏幕恢复水平状态的同时所述屏幕的第一侧和第二侧的移动速度一致;When it is determined according to the state information that the screen is in a non-horizontal state, the drive assembly is adjusted so that the drive assembly drives the first side of the screen to move at the adjusted speed and to restore the screen In the horizontal state, the moving speed of the first side and the second side of the screen is the same;
在根据所述状态信息确定所述屏幕为水平状态时,不调节所述驱动组件。When it is determined that the screen is in a horizontal state according to the state information, the driving assembly is not adjusted.
在一些实施例中,所述控制器被配置为:In some embodiments, the controller is configured to:
根据所述状态信息计算所述屏幕的所述第一侧高度和所述第二侧高度;calculating the first side height and the second side height of the screen according to the state information;
在所述第一侧高度和所述第二侧高度的高度差的绝对值小于或等于差异阈值时,确定所述屏幕为水平状态;When the absolute value of the height difference between the first side height and the second side height is less than or equal to a difference threshold, determining that the screen is in a horizontal state;
在所述第一侧高度和所述第二侧高度的高度差的绝对值大于所述差异阈值时,确定所述屏幕为非水平状态。When the absolute value of the height difference between the first side height and the second side height is greater than the difference threshold, it is determined that the screen is in a non-horizontal state.
在一些实施例中,所述监测组件包括图像采集器,所述状态信息为所述图像采集器采 集的所述屏幕的图像信息,所述第一侧高度和所述第二侧高度为根据所述图像信息计算得到的。In some embodiments, the monitoring component includes an image collector, the state information is image information of the screen collected by the image collector, and the first side height and the second side height are calculated from the image information.
在一些实施例中,所述监测组件包括角度监测器,所述角度监测器被配置为监测所述驱动组件的旋转角度,所述状态信息为根据所述驱动组件的旋转角度和移动对应关系确定的信息,其中,所述移动对应关系为所述驱动组件的旋转角度和所述屏幕的移动距离之间的对应关系。In some embodiments, the monitoring assembly includes an angle monitor, the angle monitor is configured to monitor the rotation angle of the drive assembly, and the state information is determined according to the corresponding relationship between the rotation angle and the movement of the drive assembly information, wherein the movement correspondence is the correspondence between the rotation angle of the drive assembly and the movement distance of the screen.
在一些实施例中,在所述屏幕处于上升过程中且所述第一侧的高度高于所述第二侧的高度时,所述控制器被配置为:In some embodiments, when the screen is being raised and the height of the first side is higher than the height of the second side, the controller is configured to:
根据所述第一侧和所述第二侧的高度差和预设调节时间,确定调节所述第一侧移动速度的移动速度增量,以及根据所述第一侧和所述第二侧的高度差和当前上升时间,确定调节所述第一侧移动速度的移动速度增量补充值;Determine the movement speed increment for adjusting the movement speed of the first side according to the height difference between the first side and the second side and a preset adjustment time, and determine the movement speed increment for adjusting the movement speed of the first side and the second side Height difference and current ascent time, determine the moving speed increment supplementary value for adjusting the moving speed of the first side;
以所述移动速度增量降低所述第一侧移动速度的同时,调节所述移动速度增量,直至所述移动速度增量下降至所述移动速度增量补充值;Adjusting the movement speed increment while reducing the movement speed of the first side by the movement speed increment, until the movement speed increment decreases to the movement speed increment supplementary value;
在所述屏幕处于上升过程中且所述第一侧的高度低于所述第二侧的高度时,调节所述第一侧的移动速度,具体步骤为:When the screen is in the rising process and the height of the first side is lower than the height of the second side, adjust the moving speed of the first side, and the specific steps are:
根据所述第一侧和所述第二侧的高度差和预设调节时间,确定调节所述第一侧移动速度的移动速度增量,以及根据所述第一侧和所述第二侧的高度差和当前上升时间,确定调节所述第一侧移动速度的移动速度增量补充值;Determine the movement speed increment for adjusting the movement speed of the first side according to the height difference between the first side and the second side and a preset adjustment time, and determine the movement speed increment for adjusting the movement speed of the first side and the second side Height difference and current ascent time, determine the moving speed increment supplementary value for adjusting the moving speed of the first side;
以所述移动速度增量提升所述第一侧移动速度的同时,调节所述移动速度增量,直至所述移动速度增量下降至所述移动速度增量补充值。While increasing the first side movement speed by the movement speed increment, the movement speed increment is adjusted until the movement speed increment decreases to the movement speed increment supplement value.
在一些实施例中,所述控制器被配置为:每间隔预设间隔时间,将当前所述移动速度增量的值除以退步数值,得到下一预设间隔时间采用的所述移动速度增量。In some embodiments, the controller is configured to: at every preset interval, divide the current value of the movement speed increment by the step-back value to obtain the movement speed increment used in the next preset interval. quantity.
在一些实施例中,所述控制器被配置为:In some embodiments, the controller is configured to:
在根据所述状态信息确定所述屏幕是否为水平状态之前,在所述屏幕还未移动至基准零点位置时,控制所述驱动组件驱动所述屏幕移动至所述基准零点位置。Before determining whether the screen is in a horizontal state according to the state information, when the screen has not moved to the reference zero position, the driving component is controlled to drive the screen to move to the reference zero position.
本申请一些实施例提供一种屏幕校正方法,所述方法应用于屏幕处于展开或卷曲的过程中,包括:Some embodiments of the present application provide a screen correction method, the method is applied to the screen in the process of unfolding or curling, including:
在根据监测组件反馈的所述屏幕的状态信息,确定所述屏幕为非水平状态时,调节驱动组件,以使所述驱动组件驱动所述屏幕的第一侧按照调节后的速度移动,以及以使所述屏幕恢复水平状态的同时所述屏幕的第一侧和第二侧的移动速度一致,其中所述驱动组件被配置为驱动所述屏幕展开或卷曲;When it is determined that the screen is in a non-horizontal state according to the state information of the screen fed back by the monitoring component, the driving component is adjusted, so that the driving component drives the first side of the screen to move at the adjusted speed, and The moving speed of the first side and the second side of the screen is the same while the screen is restored to a horizontal state, wherein the driving component is configured to drive the screen to unfold or curl;
在根据监测组件反馈的所述屏幕的状态信息,确定所述屏幕为水平状态时,不调节所述驱动组件。When it is determined that the screen is in a horizontal state according to the state information of the screen fed back by the monitoring assembly, the driving assembly is not adjusted.
在一些实施例中,根据所述状态信息确定所述屏幕是否为水平状态,具体为:In some embodiments, determining whether the screen is in a horizontal state according to the state information, specifically:
根据所述状态信息计算所述屏幕的所述第一侧高度和所述第二侧高度;calculating the first side height and the second side height of the screen according to the state information;
在所述第一侧高度和所述第二侧高度的高度差的绝对值小于等于差异阈值时,确定所述屏幕为水平状态;When the absolute value of the height difference between the first side height and the second side height is less than or equal to a difference threshold, determining that the screen is in a horizontal state;
在所述第一侧高度和所述第二侧高度的高度差的绝对值大于所述差异阈值时,确定所述屏幕为非水平状态。When the absolute value of the height difference between the first side height and the second side height is greater than the difference threshold, it is determined that the screen is in a non-horizontal state.
在一些实施例中,在所述屏幕处于上升过程中且所述第一侧的高度高于所述第二侧的 高度时,调节所述第一侧的移动速度,具体步骤为:In some embodiments, when the screen is in the rising process and the height of the first side is higher than the height of the second side, the moving speed of the first side is adjusted, and the specific steps are:
根据所述第一侧和所述第二侧的高度差和预设调节时间,确定调节所述第一侧移动速度的移动速度增量,以及根据所述第一侧和所述第二侧的高度差和当前上升时间,确定调节所述第一侧移动速度的移动速度增量补充值;Determine the movement speed increment for adjusting the movement speed of the first side according to the height difference between the first side and the second side and a preset adjustment time, and determine the movement speed increment for adjusting the movement speed of the first side and the second side Height difference and current ascent time, determine the moving speed increment supplementary value for adjusting the moving speed of the first side;
以所述移动速度增量降低所述第一侧移动速度的同时,调节所述移动速度增量,直至所述移动速度增量下降至所述移动速度增量补充值;Adjusting the movement speed increment while reducing the movement speed of the first side by the movement speed increment, until the movement speed increment decreases to the movement speed increment supplementary value;
在所述屏幕处于上升过程中且所述第一侧的高度低于所述第二侧的高度时,调节所述第一侧的移动速度,具体步骤为:When the screen is in the rising process and the height of the first side is lower than the height of the second side, adjust the moving speed of the first side, and the specific steps are:
根据所述第一侧和所述第二侧的高度差和预设调节时间,确定调节所述第一侧移动速度的移动速度增量,以及根据所述第一侧和所述第二侧的高度差和当前上升时间,确定调节所述第一侧移动速度的移动速度增量补充值;Determine the movement speed increment for adjusting the movement speed of the first side according to the height difference between the first side and the second side and a preset adjustment time, and determine the movement speed increment for adjusting the movement speed of the first side and the second side Height difference and current ascent time, determine the moving speed increment supplementary value for adjusting the moving speed of the first side;
以所述移动速度增量提升所述第一侧移动速度的同时,调节所述移动速度增量,直至所述移动速度增量下降至所述移动速度增量补充值。While increasing the first side movement speed by the movement speed increment, the movement speed increment is adjusted until the movement speed increment decreases to the movement speed increment supplement value.
附图说明Description of drawings
图1为根据本申请一个或多个实施例的显示设备与控制装置之间操作场景的示意图;FIG. 1 is a schematic diagram of an operation scenario between a display device and a control apparatus according to one or more embodiments of the present application;
图2为根据本申请一个或多个实施例的显示设备200的硬件配置框图;FIG. 2 is a block diagram of a hardware configuration of a display device 200 according to one or more embodiments of the present application;
图3为根据本申请一个或多个实施例的控制设备100的硬件配置框图;FIG. 3 is a block diagram of the hardware configuration of the control device 100 according to one or more embodiments of the present application;
图4为根据本申请一个或多个实施例的显示设备200中软件配置示意图;FIG. 4 is a schematic diagram of software configuration in a display device 200 according to one or more embodiments of the present application;
图5A-5B为根据本申请一个或多个实施例的卷曲激光设备结构示意图;5A-5B are schematic structural diagrams of a curling laser device according to one or more embodiments of the present application;
图6-图8为根据本申请一个或多个实施例的卷曲激光设备组成部分示意图;6-8 are schematic diagrams of components of a curling laser device according to one or more embodiments of the present application;
图9为根据本申请一个或多个实施例的图像投影示意图;9 is a schematic diagram of image projection according to one or more embodiments of the present application;
图10A-10B为根据本申请一个或多个实施例的卷曲激光设备软件示意图;10A-10B are schematic diagrams of software of a curling laser device according to one or more embodiments of the present application;
图11-图13、图14A-图14B、图15、图16A-图16C及图17为根据本申请一个或多个实施例的图像裁剪示意图;11-13, 14A-14B, 15, 16A-16C and 17 are schematic diagrams of image cropping according to one or more embodiments of the present application;
图18为根据本申请一个或多个实施例的显示界面示意图;18 is a schematic diagram of a display interface according to one or more embodiments of the present application;
图19A-19B为根据本申请一个或多个实施例的投影屏示意图;19A-19B are schematic diagrams of projection screens according to one or more embodiments of the present application;
图20A-20B为根据本申请一个或多个实施例的屏幕校正方法流程图;20A-20B are flowcharts of a screen calibration method according to one or more embodiments of the present application;
图21为根据本申请一个或多个实施例的预设速度曲线示意图;21 is a schematic diagram of a preset speed curve according to one or more embodiments of the present application;
图22为根据本申请一个或多个实施例提供的速度曲线示意图;22 is a schematic diagram of a speed curve provided according to one or more embodiments of the present application;
图23为根据本申请一个或多个实施例提供的异常处理流程图。FIG. 23 is a flowchart of exception handling provided according to one or more embodiments of the present application.
具体实施方式detailed description
为使本申请的目的、实施方式和优点更加清楚,下面将结合本申请示例性实施例中的附图,对本申请示例性实施方式进行清楚、完整地描述,显然,所描述的示例性实施例仅是本申请一部分实施例,而不是全部的实施例。In order to make the objectives, implementations and advantages of the present application clearer, the exemplary embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the exemplary embodiments of the present application. Obviously, the exemplary embodiments described It is only a part of the embodiments of the present application, but not all of the embodiments.
基于本申请描述的示例性实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本申请所附权利要求保护的范围。此外,虽然本申请中公开内容按照示范性一个或几个实例来介绍,但应理解,可以就这些公开内容的各个方面 也可以单独构成一个完整实施方式。需要说明的是,本申请中对于术语的简要说明,仅是为了方便理解接下来描述的实施方式,而不是意图限定本申请的实施方式。除非另有说明,这些术语应当按照其普通和通常的含义理解。Based on the exemplary embodiments described in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the appended claims of this application. Furthermore, although the disclosures in this application are presented in terms of illustrative example or instances, it should be understood that various aspects of this disclosure may also constitute a complete embodiment in isolation. It should be noted that the brief description of the terms in the present application is only for the convenience of understanding the embodiments described below, rather than intended to limit the embodiments of the present application. Unless otherwise specified, these terms are to be understood according to their ordinary and ordinary meanings.
图1为根据本申请一个或多个实施例的显示设备与控制装置之间操作场景的示意图,如图1所示,用户可通过移动终端300和控制装置100操作显示设备200。控制装置100可以是遥控器,遥控器和显示设备的通信包括红外协议通信、蓝牙协议通信,无线或其他有线方式来控制显示设备200。用户可以通过遥控器上按键,语音输入、控制面板输入等输入用户指令,来控制显示设备200。在一些实施例中,也可以使用移动终端、平板电脑、计算机、笔记本电脑、和其他智能设备以控制显示设备200。FIG. 1 is a schematic diagram of an operation scenario between a display device and a control device according to one or more embodiments of the present application. As shown in FIG. 1 , a user can operate the display device 200 through a mobile terminal 300 and the control device 100 . The control apparatus 100 may be a remote control, and the communication between the remote control and the display device includes infrared protocol communication, Bluetooth protocol communication, and wireless or other wired ways to control the display device 200 . The user can control the display device 200 by inputting user instructions through keys on the remote control, voice input, control panel input, and the like. In some embodiments, mobile terminals, tablet computers, computers, notebook computers, and other smart devices may also be used to control the display device 200 .
在一些实施例中,移动终端300可与显示设备200安装软件应用,通过网络通信协议实现连接通信,实现一对一控制操作的和数据通信的目的。也可以将移动终端300上显示音视频内容传输到显示设备200上,实现同步显示功能显示设备200还与服务器400通过多种通信方式进行数据通信。可允许显示设备200通过局域网(LAN)、无线局域网(WLAN)和其他网络进行通信连接。服务器400可以向显示设备200提供各种内容和互动。显示设备200,可以液晶显示器、OLED显示器、投影显示设备。显示设备200除了提供广播接收电视功能之外,还可以附加提供计算机支持功能的智能网络电视功能。In some embodiments, the mobile terminal 300 may install a software application with the display device 200 to implement connection communication through a network communication protocol, so as to achieve the purpose of one-to-one control operation and data communication. The audio and video content displayed on the mobile terminal 300 may also be transmitted to the display device 200 to realize a synchronous display function. The display device 200 also performs data communication with the server 400 through various communication methods. The display device 200 may be allowed to communicate via local area network (LAN), wireless local area network (WLAN), and other networks. The server 400 may provide various contents and interactions to the display device 200 . The display device 200 may be a liquid crystal display, an OLED display, or a projection display device. The display device 200 may additionally provide an intelligent network television function that provides a computer-supported function in addition to the function of broadcasting and receiving television.
图2示例性示出了根据示例性实施例中控制装置100的配置框图。如图2所示,控制装置100包括控制器110、通信接口130、用户输入/输出接口140、存储器、供电电源。控制装置100可接收用户的输入操作指令,且将操作指令转换为显示设备200可识别和响应的指令,起用用户与显示设备200之间交互中介作用。通信接口130用于和外部通信,包含WIFI芯片,蓝牙模块,NFC或可替代模块中的至少一种。用户输入/输出接口140包含麦克风,触摸板,传感器,按键或可替代模块中的至少一种。FIG. 2 exemplarily shows a configuration block diagram 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 device 100 can receive the user's input operation instruction, and convert the operation instruction into an instruction that the display device 200 can recognize and respond to, and play an intermediary role between the user and the display device 200 . 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. The user input/output interface 140 includes at least one of a microphone, a touchpad, a sensor, a key or an alternative module.
图3示出了根据示例性实施例中显示设备200的硬件配置框图。如图3所示显示设备200包括调谐解调器210、通信器220、检测器230、外部装置接口240、控制器250、显示器260、音频输出接口270、存储器、供电电源、用户接口280中的至少一种。控制器包括中央处理器,视频处理器,音频处理器,图形处理器,RAM,ROM,用于输入/输出的第一接口至第n接口。显示器260可为液晶显示器、OLED显示器、触控显示器以及投影显示器中的至少一种,还可以为一种投影装置和投影屏幕。调谐解调器210通过有线或无线接收方式接收广播电视信号,以及从多个无线或有线广播电视信号中解调出音视频信号,如以及EPG数据信号。检测器230用于采集外部环境或与外部交互的信号。控制器250和调谐解调器210可以位于不同的分体设备中,即调谐解调器210也可在控制器250所在的主体设备的外置设备中,如外置机顶盒等。FIG. 3 is a block diagram showing a hardware configuration of the display apparatus 200 according to an exemplary embodiment. As shown in FIG. 3 , the display device 200 includes a tuner 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 a user interface 280 . at least one. The controller includes a central processing unit, a video processing unit, an audio processing unit, a graphics processing unit, a RAM, a ROM, and a first interface to an nth interface for input/output. The display 260 may be at least one of a liquid crystal display, an OLED display, a touch display, and a projection display, and may also be a projection device and a projection screen. The tuner-demodulator 210 receives broadcast television signals through wired or wireless reception, and demodulates audio and video signals, such as EPG data signals, from a plurality of wireless or wired broadcast television signals. The detector 230 is used to collect external environment or external interaction signals. The controller 250 and the tuner 210 may be located in different separate devices, that is, the tuner 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.
在一些实施例中,控制器250,通过存储在存储器上中各种软件控制程序,来控制显示设备的工作和响应用户的操作。控制器250控制显示设备200的整体操作。用户可在显示器260上显示的图形用户界面(GUI)输入用户命令,则用户输入接口通过图形用户界面(GUI)接收用户输入命令。或者,用户可通过输入特定的声音或手势进行输入用户命令,则用户输入接口通过传感器识别出声音或手势,来接收用户输入命令。In some embodiments, the controller 250, through various software control programs stored on the memory, controls the operation of the display device and responds to user operations. The controller 250 controls the overall operation of the display apparatus 200 . A user may input a user command on a graphical user interface (GUI) displayed on the display 260, and the user input interface receives the user input command through the graphical user interface (GUI). Alternatively, the user may input a user command by inputting a specific sound or gesture, and the user input interface recognizes the sound or gesture through a sensor to receive the user input command.
在一些实施例中,“用户界面”,是应用程序或操作系统与用户之间进行交互和信息交换的介质接口,它实现信息的内部形式与用户可以接受形式之间的转换。用户界面常用的表现形式是图形用户界面(Graphic User Interface,GUI),是指采用图形方式显示的与计算 机操作相关的用户界面。它可以是在电子设备的显示屏中显示的一个图标、窗口、控件等界面元素,其中控件可以包括图标、按钮、菜单、选项卡、文本框、对话框、状态栏、导航栏、Widget等可视的界面元素中的至少一种。In some embodiments, a "user interface" is a medium interface for interaction and information exchange between an application program or an operating system and a user, which enables conversion between an internal form of information and a form acceptable to the user. The commonly used form of user interface is Graphical User Interface (GUI), which refers to a user interface related to computer operations displayed in a graphical manner. It can be an icon, window, control and other interface elements displayed on the display screen of the electronic device, wherein the control can include icons, buttons, menus, tabs, text boxes, dialog boxes, status bars, navigation bars, Widgets, etc. at least one of the visual interface elements.
图4为根据本申请一个或多个实施例的显示设备200中软件配置示意图,如图4所示,将系统分为四层,从上至下分别为应用程序(Applications)层(简称“应用层”),应用程序框架(Application Framework)层(简称“框架层”),安卓运行时(Android runtime)和系统库层(简称“系统运行库层”),以及内核层。内核层至少包含以下驱动中的至少一种:音频驱动、显示驱动、蓝牙驱动、摄像头驱动、WIFI驱动、USB驱动、HDMI驱动、传感器驱动(如指纹传感器,温度传感器,压力传感器等)、以及电源驱动等。FIG. 4 is a schematic diagram of software configuration in the display device 200 according to one or more embodiments of the present application. As shown in FIG. 4 , the system is divided into four layers. Layer"), the Application Framework layer (referred to as the "framework layer"), the Android runtime (Android runtime) and the system library layer (referred to as the "system runtime layer"), and the kernel layer. The kernel layer contains at least one of the following drivers: audio driver, display driver, Bluetooth driver, camera driver, WIFI driver, USB driver, HDMI driver, sensor driver (such as fingerprint sensor, temperature sensor, pressure sensor, etc.), and power supply drive etc.
将在先申请文件,申请日:2020年2月5日,申请号:202010115288.2,名称:激光投影系统、投影屏幕的上升和下降控制方法;申请日:2020年2月5日,申请号:202010115275.5,名称:激光投影系统、投影屏幕的上升和下降控制方法;申请日:2020年2月5日,申请号:202010115286.3,名称:激光投影系统、投影屏幕的上升和下降控制方法;申请日:2020年11月27日,申请号:202011364537.8,名称:投影设备,全文引用到本申请中。Documents to be applied for earlier, application date: February 5, 2020, application number: 202010115288.2, name: laser projection system, rising and falling control method of projection screen; application date: February 5, 2020, application number: 202010115275.5 , Name: Laser projection system, rising and falling control method of projection screen; Application date: February 5, 2020, Application number: 202010115286.3, Name: Laser projection system, rising and falling control method of projection screen; Application date: 2020 On November 27, 2019, the application number: 202011364537.8, the title: projection equipment, is incorporated in this application in its entirety.
<硬件介绍><Hardware introduction>
图5A-5B为根据本申请一个或多个实施例的卷曲激光设备结构示意图,图6-图8为根据本申请一个或多个实施例的卷曲激光设备组成部分示意图;如图5A、图5B、图6所示,本实施例中的卷曲屏幕275可以在驱动组件276的带动下完成收卷或延展动作。驱动组件276包括多组升降组件和横梁231,每组升降组件包括升降架232、升降电机233和减速齿轮组234;升降架232的第一端与基座21可旋转连接,升降架232的第二端与横梁231可旋转连接,减速齿轮组234分别与升降电机233和升降架232连接,卷曲屏幕275的第二侧边与横梁231固定连接;升降电机233能够通过减速齿轮组234驱动升降架232升降,升降架232升起时撑起横梁231以展卷曲屏幕275。升降电机233和减速齿轮组234固定在基座21上,减速齿轮组234与升降架232的第一端固定连接。其中,减速齿轮组234包括的齿轮通过齿轮支架可旋转的固定在基座21上,或者减速齿轮组234中除了与升降架232和/或升降电机233连接的齿轮之外其余齿轮通过齿轮支架可旋转的固定在基座21上。5A-5B are schematic structural diagrams of a curling laser device according to one or more embodiments of the present application, and FIGS. 6-8 are schematic diagrams of components of a curling laser device according to one or more embodiments of the present application; FIGS. 5A and 5B 6. As shown in FIG. 6, the rolling screen 275 in this embodiment can be driven by the driving component 276 to complete the rolling or extending action. The drive assembly 276 includes a plurality of sets of lifting assemblies and beams 231, each set of lifting assemblies includes a lifting frame 232, a lifting motor 233 and a reduction gear set 234; the first end of the lifting frame 232 is rotatably connected to the base 21, and the The two ends are rotatably connected to the beam 231 , the reduction gear set 234 is respectively connected to the lift motor 233 and the lift frame 232 , the second side of the curling screen 275 is fixedly connected to the beam 231 ; the lift motor 233 can drive the lift frame through the reduction gear set 234 When the lift frame 232 is lifted, the beam 231 is supported to unwind and roll the screen 275 . The lift motor 233 and the reduction gear set 234 are fixed on the base 21 , and the reduction gear set 234 is fixedly connected to the first end of the lift frame 232 . The gears included in the reduction gear set 234 are rotatably fixed on the base 21 through the gear bracket, or the gears in the reduction gear set 234 except the gears connected with the lift frame 232 and/or the lift motor 233 can be rotatably fixed on the base 21 through the gear bracket. It is rotatably fixed on the base 21 .
在一些实施例中,卷曲屏幕275可以处于三种状态:第一种是在非播放的场景下需要将卷曲屏幕275收卷起来,以缩小显示设备的占用空间。此时,卷曲屏幕275处于收卷状态,具体的可以参阅图7。第二种在播放的场景下需要将卷曲屏幕275延展开来,以使得延展开的屏幕可以承载投影组件278投射的媒体资源。具体的可以参阅图8。第三种是卷曲屏幕275在向上移动或向下移动的过程中卷曲屏幕275处于收卷状态与延展状态之间的过度状态(未示出)。In some embodiments, the curling screen 275 can be in three states: the first is that the curling screen 275 needs to be curled up in a non-playing scene to reduce the occupied space of the display device. At this time, the curling screen 275 is in a rolling state. For details, please refer to FIG. 7 . In the second play scenario, the curling screen 275 needs to be extended, so that the extended screen can carry the media resources projected by the projection component 278 . For details, please refer to Figure 8. The third is a transition state (not shown) in which the curling screen 275 is in a state of transition between the rolled state and the expanded state during the upward or downward movement of the curling screen 275 .
在一些实施例中,卷曲屏幕275可以承载投影组件278投射的媒体资源,将媒体资源展示给用户。卷曲屏幕275也可以是OLED屏,直接显示媒体资源给用户。媒体资源可以是图像或视频,其中,视频是以一帧一帧的图像来展示的,因此在本实施例中可以将媒体资源统称为图像。在一些实施例中,卷曲屏幕275可以是漫反射屏幕,或者回归型屏幕。驱动组件276,连接卷曲屏幕275,被配置为驱动卷曲屏幕275移动,移动包括向上移动或向下移动。驱动组件276,可以基于控制器250的控制带动卷曲 屏幕275收卷或延展。在一些实施例中驱动组件276可以是可卷收的履带装置,也可以是电机。电机可在屏幕的左右两端各设置一个电机,也可以在屏幕的中间段设置一个卷轴升降电机,还可以在升降屏幕的左右两端各设置一个电机,同时,在升降屏幕的中间段设置一个卷轴升降电机。In some embodiments, the roll-up screen 275 can carry the media assets projected by the projection component 278, presenting the media assets to the user. The curling screen 275 can also be an OLED screen, which directly displays media resources to the user. The media resource may be an image or a video, wherein the video is displayed as a frame-by-frame image, so in this embodiment, the media resource may be collectively referred to as an image. In some embodiments, the curled screen 275 may be a diffuse screen, or a retrograde screen. The drive assembly 276, connected to the curling screen 275, is configured to drive the curling screen 275 to move, including upward movement or downward movement. The driving component 276 can drive the curling screen 275 to rewind or extend based on the control of the controller 250. The drive assembly 276 may be a retractable crawler or a motor in some embodiments. The motor can be set with a motor at the left and right ends of the screen, or a reel lift motor can be set in the middle of the screen, and a motor can be set at the left and right ends of the lift screen. Reel lift motor.
在一些实施例中,监测组件277包括图像采集器,相应的,监测组件277监测的信息可以是图像信息。具体的,监测组件277包括摄像头,相应的监测的信息可以是通过拍摄的屏幕的图片获得。摄像头279的数量可以是一个或多个,其中,至少有一个摄像头的摄像区域为卷曲屏幕区域,该摄像头用于拍摄升降过程中屏幕和显示图像的照片。当摄像头的数量为2个时,两个摄像头分别设于投影组件的两侧。在一些实施例中,摄像头可在水平面上旋转,当需要拍摄屏幕和显示图像照片时,将拍摄镜头旋转至屏幕方向;当需要拍摄用户照片时,将拍摄镜头旋转至用户。在一些实施例中,监测组件277包括角度监测器,用以监测驱动组件276的实时旋转角度。在一些实施例中,监测组件277包括重力加速度传感器,在驱动组件276旋转的过程中,通过监测重力传感器在空间坐标系(x,y,z)3个方向上的信息,获取驱动组件276任意时刻对应的姿态。在根据姿态至计算出驱动组件276的旋转角度。在一些实施例中,监测组件277包括红外传感器,相应的监测组件277监测到的信息是卷曲屏幕上方是否有异物,当检测到卷曲屏幕上方有异物时,可及时暂停卷曲屏幕上升过程。在一些实施例中,屏幕卷曲和展开可以是屏幕由下至上上升或由上至下下降,也可以是由左到右展开或由右到左卷曲,本申请对屏幕卷曲和展开的方向和形式不做限定。In some embodiments, the monitoring component 277 includes an image collector, and accordingly, the information monitored by the monitoring component 277 may be image information. Specifically, the monitoring component 277 includes a camera, and the corresponding monitoring information can be obtained by taking pictures of the screen. The number of cameras 279 may be one or more, wherein, at least one camera has a camera area that is a curled screen area, and the camera is used to take pictures of the screen and display images during the lifting process. When the number of cameras is 2, the two cameras are respectively arranged on two sides of the projection assembly. In some embodiments, the camera can be rotated on a horizontal plane, and when it is necessary to take a picture of the screen and display an image, the camera is rotated to the screen orientation; when it is required to take a photo of the user, the camera is rotated to the user. In some embodiments, the monitoring assembly 277 includes an angle monitor to monitor the real-time rotational angle of the drive assembly 276 . In some embodiments, the monitoring component 277 includes a gravitational acceleration sensor. During the rotation of the driving component 276, by monitoring the information of the gravity sensor in three directions of the space coordinate system (x, y, z), any arbitrary information of the driving component 276 can be obtained. The posture corresponding to the moment. The rotation angle of the driving assembly 276 is calculated according to the attitude. In some embodiments, the monitoring component 277 includes an infrared sensor, and the information monitored by the corresponding monitoring component 277 is whether there is a foreign object above the curling screen. When a foreign object is detected above the curling screen, the curling screen ascending process can be temporarily suspended. In some embodiments, the screen curling and unrolling may be that the screen rises from bottom to top or descends from top to bottom, or can be unrolled from left to right or right to left. The present application describes the direction and form of screen curling and unrolling Not limited.
在一些实施例中,以开机过程中屏幕上升为例,用户通过按压控制装置的开机键或按压显示设备上的开机键,使得投影组件和控制器上电。控制器上电后,控制滑盖打开,通知屏幕上升至相对零点(offset zero)。其中,滑盖用于在屏幕在收卷状态时遮盖在卷曲状态屏幕的上方,防止灰尘落在屏幕表面。同时,控制器上电后运行屏幕控制系统和开机显示服务,其中,屏幕控制系统连接监测组件,通过监测组件获取驱动组件的状态参数,从而获取屏幕的高度和状态等信息,开机显示服务准备播放预设图像。预设图像可以是预先设置图片,也可以是预先设置的动画或视频,还可以是预设设置的开机广告等。In some embodiments, taking the screen rising during the power-on process as an example, the user presses the power-on button of the control device or the power-on button on the display device to power on the projection assembly and the controller. After the controller is powered on, the control slide is opened and the notification screen rises to offset zero. Among them, the sliding cover is used to cover the top of the screen in the rolled state when the screen is in the rolled state, so as to prevent dust from falling on the surface of the screen. At the same time, after the controller is powered on, the screen control system and the start-up display service are run. The screen control system is connected to the monitoring component, and the status parameters of the drive component are obtained through the monitoring component, so as to obtain information such as the height and status of the screen, and the start-up display service is ready to play Preset image. The preset image may be a preset picture, a preset animation or video, or a preset start-up advertisement or the like.
在屏幕上升过程中,控制器会轮询发送指令给监测组件,从而获取监测组件提供的屏幕当前状态和高度等信息。控制器根据屏幕的高度和状态信息判断当前屏幕是否在相对零点的位置。如果当前屏幕未达到相对零点的位置,判断通知屏幕上升至相对零点的时间与当前时间的差值是否超过预设时间差;如果通知屏幕上升至相对零点的时间与当前时间的差值未超过预设时间差,继续判断当前屏幕是否在相对零点的位置;如果通知屏幕上升至相对零点的时间与当前时间的差值超过预设时间差,说明检测超时,发出报警提示。如果当前屏幕达到相对零点的位置,控制屏幕按照预设速度曲线上升,开机显示服务按照预设高度曲线显示预设图像。图9为根据本申请一个或多个实施例的图像投影示意图,如图9所示,图形图像服务将不同应用绘制的图层(layer)收集起来,合成一张图像(bitmap),并将合成的图像发送至投影组件,以使投影组件将该图像投射到屏幕上。在一些实施例中,预设速度曲线是指时间与屏幕高度的曲线,预设高度曲线是指时间与预设图像显示高度的曲线。预设高度曲线与预设速度曲线可以在相对零点到最高点的曲线一致。在一些实施例中,控制屏幕按照预设速度曲 线上升与开机显示服务按照预设高度曲线播放预设图像可同时进行,也可以先后进行。During the rising process of the screen, the controller will poll and send instructions to the monitoring component, so as to obtain information such as the current status and height of the screen provided by the monitoring component. The controller judges whether the current screen is at a position relative to the zero point according to the height and status information of the screen. If the current screen does not reach the relative zero position, judge whether the difference between the time when the notification screen rises to the relative zero point and the current time exceeds the preset time difference; if the difference between the time when the notification screen rises to the relative zero point and the current time does not exceed the preset time difference If the difference between the time when the notification screen rises to the relative zero point and the current time exceeds the preset time difference, it means that the detection is overtime and an alarm prompt will be issued. If the current screen reaches the position relative to the zero point, the control screen will rise according to the preset speed curve, and the startup display service will display the preset image according to the preset height curve. FIG. 9 is a schematic diagram of image projection according to one or more embodiments of the present application. As shown in FIG. 9 , the graphic image service collects layers (layers) drawn by different applications, synthesizes a bitmap, and combines the The image is sent to the projection component so that the projection component projects the image onto the screen. In some embodiments, the preset speed curve refers to a curve between time and screen height, and the preset height curve refers to a curve between time and preset image display height. The preset height curve and the preset speed curve can be consistent from the relative zero point to the highest point. In some embodiments, controlling the screen to ascend according to the preset speed curve and the power-on display service playing the preset image according to the preset height curve may be performed simultaneously or sequentially.
<软件介绍><Software introduction>
在一些实施例中,图10A-10B为根据本申请一个或多个实施例的卷曲激光设备软件示意图,如图10A所示,软件架构包括:几何计算服务用于负责连接摄像头拍摄图像,对图像进行实时处理,并将计算结果反馈给控制器的屏幕控制系统。几何计算服务中还包括数据采集、数据处理、特征计算、结果分发等板块;屏幕控制系统用于负责控制屏幕、自动几何校正,并向上层应用实时提供屏幕上升状态信息。屏幕控制系统还包括:传输层、协议层、业务层等;应用包括开机动画、设置、关机动画,都通过屏幕控制系统来实时控制当前有效显示界面的播放;图形图像服务负责合成并显示图像,图形图像服务还包括:媒体播放器、图形图像处理模块等。In some embodiments, FIGS. 10A-10B are schematic diagrams of software of a curling laser device according to one or more embodiments of the present application. As shown in FIG. 10A , the software architecture includes: a geometric computing service is used to connect a camera to capture images, Real-time processing is performed and the calculation results are fed back to the on-screen control system of the controller. The geometric calculation service also includes data acquisition, data processing, feature calculation, and result distribution. The screen control system is used to control the screen, perform automatic geometric correction, and provide real-time screen rising status information to upper-layer applications. The screen control system also includes: transport layer, protocol layer, business layer, etc.; the application includes startup animation, setting, and shutdown animation, all of which are used to control the playback of the current effective display interface in real time through the screen control system; the graphic image service is responsible for synthesizing and displaying images, The graphic image service also includes: a media player, a graphic image processing module, and the like.
在一些实施例中,如图10B所示,摄像头采集数据,送入几何计算服务;几何计算服务实时计算当前屏幕的卷曲或展开状态和激光显示的显示区域状态;显示控制模块根据屏幕的卷曲或展开状态动态调整左右马达的速度,达到屏幕始终水平;根据激光显示的显示区域状态动态调整激光投射矩阵,达到光机投射始终正投的效果;开机动画等应用通过显示控制模块实时读取卷曲或展开状态信息,动态调整当前业务模块中的有效显示区域与屏幕显示高度匹配;开机动画等用用通过图形图像服务进行显示。In some embodiments, as shown in FIG. 10B , the camera collects data and sends it to the geometric computing service; the geometric computing service calculates the curling or unfolding state of the current screen and the display area state of the laser display in real time; In the unfolded state, the speed of the left and right motors is dynamically adjusted to keep the screen horizontal; the laser projection matrix is dynamically adjusted according to the state of the display area displayed by the laser, so as to achieve the effect that the optical-mechanical projection is always forward; applications such as boot animation can read the curl or Expand the status information, dynamically adjust the effective display area in the current business module to match the height of the screen display; the boot animation and other uses are displayed through the graphic image service.
在一些实施例中,获取屏幕的高度的步骤包括:控制器通过图像采集器获取当前屏幕的图像信息,根据图像信息对屏幕高度进行测量,得到当前屏幕的高度。判断当前屏幕的高度是否低于预设图像的显示高度;其中,当前屏幕的高度是根据监测组件反馈的信息获取的,预设图像的显示高度可根据预设高度曲线和当前时间获得。In some embodiments, the step of obtaining the height of the screen includes: the controller obtains image information of the current screen through an image collector, and measures the height of the screen according to the image information to obtain the height of the current screen. Determine whether the height of the current screen is lower than the display height of the preset image; wherein, the height of the current screen is obtained according to the information fed back by the monitoring component, and the display height of the preset image can be obtained according to the preset height curve and the current time.
<图像裁剪和显示><Image crop and display>
在一些实施例中,如果当前屏幕的高度低于预设图像的显示高度,则根据屏幕的高度将当前预设图像划分为第一图像和第二图像;例如,控制器可以根据屏幕的高度及屏幕的宽度,生成显示区域;读取显示区域对应的第一坐标;在预设图像中第一坐标对应的图像为第二图像,其余部分的图像为第一图像。以屏幕的左下角为原点建立第一坐标系。以预设图像的左下角为原点建立第二坐标系。图11-图13、图14A-图14B、图15、图16A-图16C及图17为根据本申请一个或多个实施例的图像裁剪示意图;如图11所示,坐标系1为第一坐标系,坐标系2为第二坐标系。在一些实施例中,在屏幕上升时,屏幕的尺寸为1920mm*1080mm,相应的可以将屏幕切割成1920*1080个显示块,每个显示块在第一坐标系中的坐标值是已知的。屏幕向上移动的过程中,某一时刻控制器计算出屏幕的高度为678mm,显示区域对应的第一坐标为:(0,0)(0,1)……(0,1920);(1,0)(1,1)……(1,1920);……(678,0)(678,1)……(678,1920)。预设图像中第一坐标对应的图像为第二图像,其余的图像为第一图像,具体的可以参阅图12。In some embodiments, if the height of the current screen is lower than the display height of the preset image, the current preset image is divided into the first image and the second image according to the height of the screen; for example, the controller may The width of the screen is used to generate a display area; the first coordinate corresponding to the display area is read; the image corresponding to the first coordinate in the preset image is the second image, and the rest of the images are the first image. The first coordinate system is established with the lower left corner of the screen as the origin. The second coordinate system is established with the lower left corner of the preset image as the origin. 11-13, 14A-14B, 15, 16A-16C, and 17 are schematic diagrams of cropping images according to one or more embodiments of the present application; as shown in FIG. 11, the coordinate system 1 is the first Coordinate system, coordinate system 2 is the second coordinate system. In some embodiments, when the screen is raised, the size of the screen is 1920mm*1080mm, correspondingly, the screen can be cut into 1920*1080 display blocks, and the coordinate value of each display block in the first coordinate system is known . During the upward movement of the screen, the controller calculates that the height of the screen is 678mm at a certain moment, and the first coordinates corresponding to the display area are: (0,0)(0,1)...(0,1920); (1, 0)(1,1)…(1,1920);…(678,0)(678,1)…(678,1920). The image corresponding to the first coordinate in the preset image is the second image, and the rest of the images are the first images. For details, please refer to FIG. 12 .
在一些实施例中,在屏幕上升时,屏幕的尺寸为1920mm*1080mm。屏幕向上移动的过程中,某一时刻控制器计算出屏幕的高度为678mm,预设图像的距离底端高度为678mm对应的图像为第二图像,其余图像为第一图像,具体的可以参阅图13。对第一图像进行遮黑处理,得到处理后的图像;例如,可以在第一图像上层设置一浮层窗口,浮层窗口的尺寸等于第一图像的尺寸,浮层窗口用于加载黑色界面,最终得到的处理后的图像可以参阅图14A。再例如,可以将第一图像中个像素点的颜色设置为 黑色,最终得到的处理后的图像可以参阅图14B。图形图像服务对预设图像进行划分和遮黑处理后,将处理后的图像发送至投影组件,以使投影组件将处理后的图像投射在屏幕上。在一些实施例中,如果当前屏幕的高度不低于预设图像的显示高度,继续按照预设速度曲线上升屏幕并按照预设高度曲线投射预设图像。以上实施例中,在屏幕上升的过程中,投射出来的处理后的图像可以参阅图15。在一些实施例中,本申请一些实施例提供的方法同样适用于关机过程。In some embodiments, when the screen is raised, the size of the screen is 1920mm*1080mm. When the screen moves upwards, the controller calculates that the height of the screen is 678mm at a certain moment, the image corresponding to the preset image with a height of 678mm from the bottom is the second image, and the rest of the images are the first image. For details, please refer to the figure. 13. Blackout processing is performed on the first image to obtain a processed image; for example, a floating layer window can be set on the upper layer of the first image, the size of the floating layer window is equal to the size of the first image, and the floating layer window is used to load the black interface, The final processed image can be seen in Figure 14A. For another example, the color of each pixel in the first image may be set to black, and the finally obtained processed image may refer to FIG. 14B . After the graphic image service divides and masks the preset image, it sends the processed image to the projection component, so that the projection component projects the processed image on the screen. In some embodiments, if the height of the current screen is not lower than the display height of the preset image, the screen continues to rise according to the preset speed curve and the preset image is projected according to the preset height curve. In the above embodiment, in the process of the screen rising, the processed image projected out can refer to FIG. 15 . In some embodiments, the methods provided by some embodiments of the present application are also applicable to the shutdown process.
在一些实施例中,如果当前屏幕的高度低于预设图像的显示高度,则根据屏幕的高度将当前预设图像剪裁为第一图像和第二图像,控制投影组件将第一图像投射在当前屏幕上;例如:将预设图像在距离顶端高度为屏幕的高度处横向裁剪,得到第一图像和第二图像。将第一图像经过坐标转换后移至激光投射区域的下部分,激光投射区域的上部分可由全黑图像或全黑像素代替,图形图像服务将全黑图像与经过坐标转换后的第一图像合并成处理后的图像,将处理后的图像显示在当前屏幕上。In some embodiments, if the height of the current screen is lower than the display height of the preset image, the current preset image is cut into the first image and the second image according to the height of the screen, and the projection component is controlled to project the first image on the current screen. On the screen; for example, crop the preset image horizontally at the height of the screen from the top to obtain the first image and the second image. Move the first image to the lower part of the laser projection area after coordinate transformation. The upper part of the laser projection area can be replaced by a black image or black pixels. The graphic image service combines the black image with the first image after coordinate transformation. into a processed image, and display the processed image on the current screen.
在一些实施例中,坐标转换的方式将第一图像的纵坐标减去屏幕最高点与当前屏幕高度的差值,横坐标不变。例如:在屏幕上升时,屏幕的尺寸为1920mm*1080mm,相应的可以将屏幕切割成1920*1080个显示块,每个显示块在第一坐标系中的坐标值是已知的。屏幕向上移动的过程中,某一时刻控制器计算出屏幕的高度为678mm,将预设图像在距离顶端高度为678mm处横向裁剪,得到第一图像和第二图像。如图16A所示,当前第一图像的坐标为(1080,0)(1080,1)……(1080,1920);(1079,0)(1079,1)……(1079,1920);……(402,0)(402,1)……(402,1920);屏幕最高点与当前屏幕高度的差值为402,经过坐标转换,即第一图像的纵坐标减去402,得到第一图像的坐标为(402,0)(402,1)……(402,1920);(401,0)(401,1)……(401,1920);……(0,0)(0,1)……(0,1920),如图16B所示。激光投射区域的上部分可由全黑图像或全黑像素代替,图形图像服务将全黑图像与经过坐标转换后的第一图像合并成处理后的图像,如图16C所示。图形图像服务对预设图像进行剪裁、坐标转换和遮黑处理后,将处理后的图像发送至投影组件,以使投影组件将处理后的图像投射在屏幕上。以上实施例中,在屏幕上升的过程中,投射出来的图像可以参阅图17。在一些实施例中,本申请一些实施例提供的方法同样适用于关机过程。In some embodiments, the coordinate transformation method subtracts the difference between the highest point of the screen and the current screen height from the ordinate of the first image, and the abscissa remains unchanged. For example: when the screen is raised, the size of the screen is 1920mm*1080mm, correspondingly, the screen can be cut into 1920*1080 display blocks, and the coordinate value of each display block in the first coordinate system is known. During the upward movement of the screen, the controller calculates that the height of the screen is 678mm at a certain moment, and the preset image is horizontally cropped at a height of 678mm from the top to obtain the first image and the second image. As shown in Fig. 16A, the coordinates of the current first image are (1080,0)(1080,1)...(1080,1920);(1079,0)(1079,1)...(1079,1920);... ...(402,0)(402,1)...(402,1920); the difference between the highest point of the screen and the current screen height is 402. After coordinate transformation, that is, the ordinate of the first image is subtracted by 402 to obtain the first image. The coordinates of the image are (402,0)(402,1)...(402,1920);(401,0)(401,1)...(401,1920);...(0,0)(0, 1)...(0,1920), as shown in Figure 16B. The upper part of the laser projection area can be replaced by an all-black image or all-black pixels, and the graphic image service merges the all-black image and the coordinate-transformed first image into a processed image, as shown in FIG. 16C . After the graphic image service performs cropping, coordinate conversion, and blackout processing on the preset image, it sends the processed image to the projection component, so that the projection component projects the processed image on the screen. In the above embodiment, when the screen is raised, the projected image can be referred to FIG. 17 . In some embodiments, the methods provided by some embodiments of the present application are also applicable to the shutdown process.
在另一些实施例中,在获取到当前屏幕高度后,对预设图像进行裁剪,裁剪至与当前屏幕高度相同,投影组件投射图像时,仅投射当前屏幕区域。该方式仅屏幕处有激光投射,屏幕外无投射,更符合设计约束,不会漏光到屏幕外,但是需要对投影组件等硬件设备进行改动,开发周期较长。In other embodiments, after the current screen height is acquired, the preset image is cropped to be the same height as the current screen, and when the projection component projects the image, only the current screen area is projected. This method only has laser projection on the screen and no projection outside the screen, which is more in line with the design constraints and will not leak light to the outside of the screen.
在一些实施例中,用户通过按压控制装置的开机键或按压显示设备上的开机键,使得投影组件和控制器上电,控制器通知屏幕上升,系统屏蔽声音和按键,投射组件不投射图像,开机动画程序通过读取GPIO等方式循环检测当前屏幕上升状态,等屏幕上升至最高点后,开机动画程序通知投射组件投射图像,并解除按键屏蔽,解除声音屏蔽,进入主系统。在一些实施例中,用户通过按压控制装置的开机键或按压显示设备上的开机键,使得投影组件和控制器上电。控制器通知屏幕上升,同时,屏蔽按键和声音。在前期屏幕上升的过程中,投影组件并不投射图像,但是该图像仍在后台播放。屏蔽按键和声音的目的在于防止图像附带的声音播放出来或用户误按控制装置上的按键触发对应的功能,以使用户误以为显示设备在运行中出现差错,耽误开机进 程,造成用户体验不好。当检测到屏幕上升至预设高度时,控制投影组件投射预设图像并解除按键和声音屏蔽;其中,预设高度可为屏幕总高度的一半。In some embodiments, the user presses the power-on button of the control device or the power-on button on the display device to power on the projection assembly and the controller, the controller notifies the screen to rise, the system blocks sound and keys, and the projection assembly does not project images, The boot animation program cyclically detects the current screen rising status by reading GPIO, etc. After the screen rises to the highest point, the boot animation program notifies the projection component to project the image, and releases the button shielding and sound shielding to enter the main system. In some embodiments, the user powers up the projection assembly and the controller by pressing the power button of the control device or pressing the power button on the display device. The controller notifies that the screen goes up and, at the same time, blocks keystrokes and sounds. During the previous screen rise, the projection assembly does not project an image, but the image is still playing in the background. The purpose of shielding the buttons and sounds is to prevent the sound attached to the image from being played or the user accidentally pressing the button on the control device to trigger the corresponding function, so as to make the user mistakenly think that there is an error in the operation of the display device, delay the boot process, and cause a bad user experience. . When it is detected that the screen rises to a preset height, the projection component is controlled to project a preset image and release the key and sound shielding; wherein, the preset height can be half of the total height of the screen.
在一些实施例中,图18为根据本申请一个或多个实施例的显示界面示意图。当检测到屏幕上升至预设高度时,屏幕显示提示信息,提示“屏幕正在启动中,按任意键亮屏”并解除按键屏蔽,此时,仅字体是有颜色的,其他区域为黑色,如图18所示。如果检测到用户在显示提示信息之后,手动触发按键,触发亮屏动作,控制投影组件投射预设图像并解除声音屏蔽。预设图像按照预设速度曲线上升;实时获取屏幕的高度,如果屏幕的高度低于预设图像的显示高度,根据屏幕的高度对预设图像进行处理,使得预设图像的显示高度与屏幕的上升高度相匹配;如果未检测到用户在显示提示信息之后,手动触发按键,等屏幕上升至最高点后,控制投影组件投射预设图像并解除声音屏蔽。In some embodiments, FIG. 18 is a schematic diagram of a display interface according to one or more embodiments of the present application. When it is detected that the screen has risen to the preset height, the screen will display a prompt message, prompting "the screen is starting, press any key to turn on the screen" and release the key shield. At this time, only the font is colored, and other areas are black, such as shown in Figure 18. If it is detected that the user manually triggers the button after the prompt information is displayed, the screen brightening action is triggered, and the projection component is controlled to project a preset image and cancel the sound shielding. The preset image rises according to the preset speed curve; the height of the screen is obtained in real time, if the height of the screen is lower than the display height of the preset image, the preset image is processed according to the height of the screen, so that the display height of the preset image is the same as that of the screen. Match the rising height; if it is not detected that the user manually triggers the button after the prompt message is displayed, and after the screen rises to the highest point, control the projection component to project the preset image and release the sound shielding.
<屏幕两侧高度的检测与调节><Detection and adjustment of height on both sides of the screen>
在一些实施例中,在屏幕上升过程中,屏幕的第一侧高度和第二侧高度一致,则屏幕的为水平状态。图19A-19B为根据本申请一个或多个实施例的投影屏示意图;如图19所示,在屏幕上升过程中,屏幕的第一侧高度和第二侧高度不一致,则屏幕为非水平状态。在一些实施例中,如果监测组件包括图像采集器,则通过图像采集器采集的屏幕的图像信息,判断屏幕是否水平的步骤为:根据采集的屏幕图像信息和图像采集器的基准位置信息,计算屏幕的第一侧高度和第二侧高度,即第一侧高度和第二侧高度。如果第一侧高度和第二侧高度的高度差绝对值小于等于差异阈值,则确定屏幕为水平状态。如果第一侧高度和第二侧高度的高度差绝对值大于差异阈值,则确定屏幕为非水平状态。差异阈值可以是预先存储在控制器中的经验数据。In some embodiments, when the height of the first side of the screen is consistent with the height of the second side of the screen during the rising process of the screen, the screen is in a horizontal state. 19A-19B are schematic diagrams of projection screens according to one or more embodiments of the present application; as shown in FIG. 19 , when the height of the first side of the screen and the height of the second side of the screen are inconsistent during the rising process of the screen, the screen is in a non-horizontal state . In some embodiments, if the monitoring component includes an image collector, the step of judging whether the screen is horizontal by using the image information of the screen collected by the image collector is: according to the collected screen image information and the reference position information of the image collector, calculate The height of the first side and the height of the second side of the screen, namely the height of the first side and the height of the second side. If the absolute value of the height difference between the height of the first side and the height of the second side is less than or equal to the difference threshold, it is determined that the screen is in a horizontal state. If the absolute value of the height difference between the height of the first side and the height of the second side is greater than the difference threshold, it is determined that the screen is in a non-horizontal state. The difference threshold may be empirical data pre-stored in the controller.
在一些实施例中,如果监测组件包括角度监测器,则显示设备包括两组驱动组件,通过角度监测器分别监测两组驱动组件的旋转角度信息。通过旋转角度信息分别计算得到两侧高度。示例性的,显示设备包括两组驱动组件,两组驱动组件分别驱动屏幕的两侧移动。根据分别监测的两组驱动组件的旋转角度信息,分别计算得到两侧高度。In some embodiments, if the monitoring assembly includes an angle monitor, the display device includes two groups of driving assemblies, and the rotation angle information of the two groups of driving assemblies is respectively monitored by the angle monitors. The heights on both sides are calculated separately from the rotation angle information. Exemplarily, the display device includes two groups of driving components, and the two groups of driving components respectively drive two sides of the screen to move. According to the rotation angle information of the two groups of driving components monitored respectively, the heights of the two sides are calculated respectively.
在一些实施例中,控制器被配置为执行:在屏幕的移动过程中,在根据监测组件监测的屏幕的状态信息,确定屏幕为非水平状态时,调节驱动组件,以使所述驱动组件驱动所述屏幕的第一侧按照调节后的速度移动,以及以使所述屏幕恢复水平状态的同时所述屏幕的第一侧和第二侧的移动速度一致。根据监测组件监测的屏幕的状态信息,确定屏幕为水平状态时,不调节所述驱动组件,即按照原速度驱动屏幕移动。In some embodiments, the controller is configured to perform: during the movement of the screen, when it is determined that the screen is in a non-horizontal state according to the state information of the screen monitored by the monitoring component, adjust the driving component so that the driving component drives The first side of the screen moves at the adjusted speed, and the moving speeds of the first side and the second side of the screen are the same while the screen is restored to a horizontal state. According to the state information of the screen monitored by the monitoring component, when it is determined that the screen is in a horizontal state, the driving component is not adjusted, that is, the screen is driven to move at the original speed.
在一些实施例中,可以以屏幕的最低侧为基准调节屏幕的最高侧的移动速度。即如果第一侧的高度高于第二侧的高度,则调节第一侧的移动速度实际上为降低第一侧移动速度,而维持第二侧的移动速度不变。在一些实施例中,可以以屏幕的最高侧为基准调节屏幕的最低侧的移动速度。即如果第一侧的高度低于第一侧的高度,则调节第一侧的移动速度实际上为提升第一侧移动速度,而维持第二侧的移动速度不变。驱动组件也可以为一组,也可以为多组。本申请一些实施例以两组驱动组件为示例,对调节速度的具体过程进行描述。In some embodiments, the movement speed of the uppermost side of the screen may be adjusted based on the lowermost side of the screen. That is, if the height of the first side is higher than the height of the second side, adjusting the moving speed of the first side actually reduces the moving speed of the first side while maintaining the moving speed of the second side unchanged. In some embodiments, the movement speed of the lowermost side of the screen may be adjusted based on the uppermost side of the screen. That is, if the height of the first side is lower than the height of the first side, adjusting the moving speed of the first side actually increases the moving speed of the first side while maintaining the moving speed of the second side unchanged. The drive components can also be in one group or in multiple groups. Some embodiments of the present application take two groups of drive assemblies as examples to describe the specific process of adjusting the speed.
本申请一些实施例中的两组驱动组件分别用于驱动屏幕的第一侧移动和第二侧移动。本申请一些实施例中控制器是直接控制驱动组件转动,即控制电机的角速度。电机将其角速度转换为屏幕的线速度。具体的转换公式为υ=rω,其中,υ为屏幕的线 速度,r为转轴的半径,ω为电机转动的角速度。本申请一些实施例中屏幕采用的幕布厚度较小,将屏幕在上升或者下降过程中的转轴半径大小的变化量忽略不计。基于上述实施例,如果屏幕处于上升过程中且第一侧的高度低于第二侧的高度,说明第一侧的移动速度相较于第二侧移动速度较慢。则以第二侧为基准调节第一侧的移动速度实际上为提升第一侧移动速度。调节第一侧的移动速度的具体过程为:根据屏幕第一侧高度和屏幕第二侧高度的高度差Z和预设调节时间T(期望在预设调节时间内完成调整),确定屏幕第一侧的移动速度增量。初始的移动速度增量的计算公式为:dυ=Z/T。The two sets of driving assemblies in some embodiments of the present application are respectively used to drive the first side movement and the second side movement of the screen. In some embodiments of the present application, the controller directly controls the rotation of the drive assembly, that is, controls the angular velocity of the motor. The motor converts its angular velocity to the linear velocity of the screen. The specific conversion formula is υ=rω, where υ is the linear velocity of the screen, r is the radius of the rotating shaft, and ω is the angular velocity of the motor. In some embodiments of the present application, the thickness of the screen used for the screen is relatively small, and the amount of change in the radius of the rotating shaft in the process of rising or falling of the screen is ignored. Based on the above embodiment, if the screen is in the rising process and the height of the first side is lower than the height of the second side, it means that the moving speed of the first side is slower than that of the second side. Then, adjusting the moving speed of the first side based on the second side is actually increasing the moving speed of the first side. The specific process of adjusting the moving speed of the first side is as follows: according to the height difference Z between the height of the first side of the screen and the height of the second side of the screen, and the preset adjustment time T (it is expected to complete the adjustment within the preset adjustment time), determine the screen first. The movement speed increment for the side. The calculation formula of the initial moving speed increment is: dυ=Z/T.
根据屏幕第一侧高度和屏幕第二侧高度的高度差和当前上升时间,确定屏幕第一侧的移动速度增量补充量。移动速度增量补充量ddυ的计算公式为:[TH2/t-H/t]-[TH1/t-H/t]。其中,TH2和TH1分别为屏幕的第一侧高度和第二侧高度。t为当前上升时间,H为当前屏幕上升的理论高度,计算公式为:According to the height difference between the height of the first side of the screen and the height of the second side of the screen and the current ascent time, determine the incremental replenishment amount of the movement speed of the first side of the screen. The calculation formula of the incremental replenishment amount ddυ of moving speed is: [TH2/t-H/t]-[TH1/t-H/t]. Wherein, TH2 and TH1 are the height of the first side and the height of the second side of the screen, respectively. t is the current rising time, H is the theoretical height of the current screen rising, the calculation formula is:
Figure PCTCN2021102288-appb-000001
Figure PCTCN2021102288-appb-000001
r2=r1+xh    公式2r2=r1+xh Formula 2
其中,r1为卷轴内径,h为屏幕厚度,x为当前转动圈数,r2屏幕未展开时,卷轴的最大半径。以移动速度增量(此时移动速度增量为正值)提升第一侧的移动速度的同时,利用退步算法调节移动速度增量,直至移动速度增量下降至移动速度增量补充值。此时,第一侧和第二侧的高度一致,同时,第一侧和第二侧的移动速度一致,因而能够保证继续升降的过程中,第一侧和第二侧的高度一致,即屏幕保持水平状态。Among them, r1 is the inner diameter of the reel, h is the thickness of the screen, x is the current number of turns, and r2 is the maximum radius of the reel when the screen is not unfolded. While increasing the movement speed of the first side by the movement speed increment (in this case, the movement speed increment is a positive value), use the backward algorithm to adjust the movement speed increment until the movement speed increment decreases to the supplementary value of the movement speed increment. At this time, the heights of the first side and the second side are the same, and at the same time, the moving speeds of the first side and the second side are the same, so it can be ensured that the heights of the first side and the second side are the same during the continuous lifting process, that is, the screen Keep it level.
这里,利用退步算法调节移动速度增量具体过程为:每间隔预设间隔时间,将当前移动速度增量的值除以一个退步数值,例如可以将当前移动速度增量的值除以二。将得到的移动速度增量作为下一预设间隔时间采用的移动速度增量。示例性的,每500ms下发一次移动速度增量调整值,即每500ms退步一次。按照dv2,dv2/2,dv2/4…ddυ的退步算法,以退步后的移动速度增量调节屏幕移动速度。在利用退步算法调节移动速度增量的同时,监测组件实时监测屏幕的状态是否水平。如果监测到屏幕为水平状态,则直接下发移动速度增量补充值ddυ给屏幕第一侧的移动速度。如果监测到屏幕不为水平状态,则继续以退步算法的方式下发移动速度增量给屏幕第一侧的移动速度,直至移动速度增量退步至移动速度增量补充值ddυ。在一些实施例中,还可以利用非退步算法调节移动速度增量,具体过程为:始终以移动速度增量调节第一侧的移动速度,当调节的时间达到预设调节时间时,将移动速度增量直接降低至移动速度增量补充值ddυ。Here, the specific process of adjusting the movement speed increment by using the backstepping algorithm is as follows: at every preset interval, the value of the current movement speed increment is divided by a backstep value, for example, the value of the current movement speed increment can be divided by two. Use the obtained movement speed increment as the movement speed increment used in the next preset interval. Exemplarily, the incremental adjustment value of the movement speed is issued every 500ms, that is, a step backward every 500ms. According to the regression algorithm of dv2, dv2/2, dv2/4...ddυ, adjust the screen movement speed in increments of the backward movement speed. While adjusting the movement speed increment by using the backward algorithm, the monitoring component monitors whether the state of the screen is level in real time. If it is detected that the screen is in a horizontal state, the incremental supplementary value ddυ of the movement speed is directly issued to the movement speed of the first side of the screen. If it is detected that the screen is not in a horizontal state, the movement speed increment will continue to be issued to the movement speed of the first side of the screen in the form of a regression algorithm, until the movement speed increment is degraded to the movement speed increment supplementary value ddυ. In some embodiments, a non-regressive algorithm can also be used to adjust the movement speed increment. The specific process is: always adjust the movement speed of the first side by the movement speed increment, and when the adjustment time reaches the preset adjustment time, the movement speed The increment is directly reduced to the movement speed increment supplementary value ddυ.
在一些实施例中,如果屏幕处于上升过程中且第一侧的高度高于第二侧的高度,说明第一侧的移动速度相较于第二侧移动速度较快。则以第二侧为基准调节第一侧的移动速度实际上为降低第一侧移动速度。调节第一侧移动速度的具体过程为:以移动速度增量(此时移动速度增量为负值)降低第一侧的移动速度的同时,利用退步算法调节移动速度增量,直至移动速度增量下降至移动速度增量补充值。移动速度增量和 移动速度增量补充值的计算方法参考上述实施例。In some embodiments, if the screen is in the rising process and the height of the first side is higher than the height of the second side, it means that the moving speed of the first side is faster than that of the second side. Then, adjusting the moving speed of the first side based on the second side is actually reducing the moving speed of the first side. The specific process of adjusting the movement speed of the first side is: while reducing the movement speed of the first side by the movement speed increment (the movement speed increment is a negative value at this time), use the backward algorithm to adjust the movement speed increment until the movement speed increases. The amount drops to the movement speed incremental replenishment value. The calculation method of the movement speed increment and the movement speed increment supplementary value refers to the above-mentioned embodiment.
在一些实施例中,如果屏幕处于下降过程中且第一侧的高度低于第二侧的高度,说明第一侧的移动速度相较于第二侧移动速度较快。则以第二侧为基准调节第一侧的移动速度实际上为降低第一侧移动速度,而维持第二侧的移动速度不变。调节第一侧移动速度的具体过程可以参考上述实施例,本实施例不再赘述。在一些实施例中,如果屏幕处于下降过程中且第一侧的高度高于第二侧的高度,说明第一侧的移动速度相较于第二侧移动速度较慢。则以第二侧为基准调节第一侧的移动速度实际上为提升第一侧移动速度,而维持第二侧的移动速度不变。调节第一侧移动速度的具体过程可以参考上述实施例,本实施例不再赘述。In some embodiments, if the screen is in the process of descending and the height of the first side is lower than the height of the second side, it means that the moving speed of the first side is faster than that of the second side. Then, adjusting the moving speed of the first side based on the second side actually reduces the moving speed of the first side while maintaining the moving speed of the second side unchanged. For the specific process of adjusting the moving speed of the first side, reference may be made to the foregoing embodiment, which will not be repeated in this embodiment. In some embodiments, if the screen is in the process of descending and the height of the first side is higher than the height of the second side, it means that the moving speed of the first side is slower than that of the second side. Then, adjusting the moving speed of the first side based on the second side actually increases the moving speed of the first side while maintaining the moving speed of the second side unchanged. For the specific process of adjusting the moving speed of the first side, reference may be made to the foregoing embodiment, which will not be repeated in this embodiment.
在一些实施例中,控制器还被配置为执行:在屏幕移动至顶端后,在根据监测组件监测的屏幕的状态信息,确定屏幕为非水平状态时,控制所述驱动组件驱动所述屏幕的最低侧继续上升,同时不驱动所述屏幕的最高侧继续上升,直至所述屏幕恢复水平状态。判断屏幕是否水平状态已在上文详细描述,在此不再赘述。基于上述实施例,如果屏幕上升至顶端时,屏幕为非水平状态。则根据最低侧和最高侧的高度差绝对值和最低侧的当前移动速度,计算移动时间(此过程中最低侧移动过程仍为匀速),即最低侧以当前移动速度移动高度差绝对值所需花费的时间。驱动组件驱动最低侧以当前移动速度继续上升,直至屏幕恢复水平状态的时间,即最低侧继续上升的时间达到移动时间,则屏幕恢复至水平状态。In some embodiments, the controller is further configured to execute: after the screen is moved to the top, when it is determined that the screen is in a non-horizontal state according to the state information of the screen monitored by the monitoring component, control the driving component to drive the screen. The lowest side continues to rise, while the highest side that does not drive the screen continues to rise until the screen returns to a horizontal state. Determining whether the screen is in a horizontal state has been described in detail above, and will not be repeated here. Based on the above embodiment, if the screen is raised to the top, the screen is in a non-horizontal state. Then, according to the absolute value of the height difference between the lowest side and the highest side and the current moving speed of the lowest side, the movement time is calculated (the movement process of the lowest side is still at a constant speed during this process), that is, the absolute value of the height difference for the lowest side to move at the current moving speed is required. time spent. The driving component drives the lowest side to continue to rise at the current moving speed until the time when the screen returns to the horizontal state, that is, the time when the lowest side continues to rise reaches the moving time, and the screen returns to the horizontal state.
在一些实施例中,如果屏幕上升至顶端时,屏幕非水平状态。则控制最低侧的驱动组件驱动最低侧继续上升,同时关闭最高侧的驱动组件,即不再驱动最高侧继续上升。在驱动最低侧继续上升的过程中,继续接收监测组件反馈的屏幕的状态信息,并继续根据该状态信息确定屏幕是否恢复水平状态。如果确定屏幕仍然为非水平状态,则继续控制最低侧的驱动组件驱动最低侧继续上升。直至根据反馈的状态信息确定屏幕恢复水平状态。In some embodiments, if the screen is raised to the top, the screen is not horizontal. Then, the driving component on the lowest side is controlled to drive the lowest side to continue to rise, and at the same time, the driving component on the highest side is turned off, that is, the highest side is not driven to continue to rise. In the process of driving the lowermost side to continue to rise, continue to receive the status information of the screen fed back by the monitoring component, and continue to determine whether the screen returns to a horizontal state according to the status information. If it is determined that the screen is still in a non-horizontal state, continue to control the driving component of the lowest side to drive the lowest side to continue to rise. Until it is determined that the screen returns to the horizontal state according to the feedback status information.
本申请一些实施例提供一种显示设备的屏幕校正方法,图20A-20B为根据本申请一个或多个实施例的屏幕校正方法流程图;参考图20A,所述包括以下步骤:屏幕处于展开或卷曲的过程中(只涉及匀速阶段),监测组件监测屏幕的状态,并向控制器反馈屏幕的状态信息。控制器根据屏幕的状态信息确定屏幕是否为水平状态。如果屏幕为非水平状态,则控制器通过调节驱动组件,以使所述驱动组件驱动所述屏幕的第一侧按照调节后的速度移动,以及以使所述屏幕恢复水平状态的同时所述屏幕的第一侧和第二侧的移动速度一致。如果屏幕为水平状态,则不调节驱动组件,即屏幕的两侧按照原有的速度移动。同时监测组件继续监测屏幕的状态,并周期性将屏幕的状态信息发送至控制器。Some embodiments of the present application provide a screen correction method for a display device. FIGS. 20A-20B are flowcharts of a screen correction method according to one or more embodiments of the present application; with reference to FIG. 20A , the method includes the following steps: During the curling process (only the constant speed stage is involved), the monitoring component monitors the status of the screen and feeds back the status information of the screen to the controller. The controller determines whether the screen is in a horizontal state according to the state information of the screen. If the screen is in a non-horizontal state, the controller adjusts the drive assembly so that the drive assembly drives the first side of the screen to move at the adjusted speed, and the screen returns to a horizontal state while the screen is restored The first side and the second side move at the same speed. If the screen is horizontal, the drive assembly is not adjusted, that is, the two sides of the screen move at the original speed. Meanwhile, the monitoring component continues to monitor the status of the screen, and periodically sends the status information of the screen to the controller.
本申请实施例提供又一种显示设备的屏幕校正方法,参考图20B,所述方法包括以下步骤:屏幕处于展开或卷曲的过程中(只涉及匀速阶段),监测组件监测屏幕的状态,并向控制器反馈屏幕的状态信息。控制器根据屏幕的状态信息计算屏幕的第一侧高度和第二侧高度,同时计算第一侧和第二侧的高度差的绝对值。控制器还预先存储有高度差的差异阈值。如果第一侧和第二侧的高度差的绝对值小于等于差异阈值,则确定屏幕为水平状态,不需要调节驱动组件。如果第一侧和第二侧的高度差的绝对值大于差异阈值,则确定屏幕为非水平状态,则需要调节驱动组件,以屏幕第二侧为 基准调节屏幕第一侧的移动速度,即不调节第二侧的移动速度,而调节第一侧移动速度,以使第一侧和第二侧的高度一致(高度差绝对值小于等于差异阈值),同时第一侧和第二侧的移动速度一致。或者,以屏幕第一侧为基准调节屏幕第二侧的移动速度,即不调节第一侧的移动速度,而调节第二侧移动速度,以使第一侧和第二侧的高度一致,同时第一侧和第二侧的移动速度一致。移动速度的具体调节过程参考上述显示设备实施例。本申请各个实施例之间相同或相似的内容可相互参照,相关实施例不再赘述。An embodiment of the present application provides another method for calibrating a screen of a display device. Referring to FIG. 20B , the method includes the following steps: the screen is in the process of unwinding or curling (only the constant speed stage is involved), the monitoring component monitors the state of the screen, and sends a message to the screen. The controller feeds back the status information of the screen. The controller calculates the height of the first side and the height of the second side of the screen according to the state information of the screen, and simultaneously calculates the absolute value of the height difference between the first side and the second side. The controller also pre-stores the difference threshold of the height difference. If the absolute value of the height difference between the first side and the second side is less than or equal to the difference threshold, it is determined that the screen is in a horizontal state, and the driving assembly does not need to be adjusted. If the absolute value of the height difference between the first side and the second side is greater than the difference threshold, it is determined that the screen is in a non-horizontal state, and the drive assembly needs to be adjusted to adjust the moving speed of the first side of the screen based on the second side of the screen, that is, not to Adjust the moving speed of the second side, and adjust the moving speed of the first side, so that the heights of the first side and the second side are consistent (the absolute value of the height difference is less than or equal to the difference threshold), and the moving speed of the first side and the second side is at the same time. Consistent. Or, adjust the moving speed of the second side of the screen based on the first side of the screen, that is, not adjust the moving speed of the first side, but adjust the moving speed of the second side, so that the heights of the first side and the second side are the same, and at the same time The first side and the second side move at the same speed. For the specific adjustment process of the moving speed, refer to the above-mentioned embodiment of the display device. For the same or similar content among the various embodiments of the present application, reference may be made to each other, and the relevant embodiments will not be repeated.
<速度曲线><speed curve>
在一些实施例中,依据预设速度曲线来控制卷曲屏幕上升,其中,预设速度曲线是指时间与卷曲屏幕高度的曲线,预设高度曲线是指时间与预设图像显示高度的曲线。时间与卷曲屏幕高度的曲线与时间与预设图像显示高度的曲线可以相同,也可以不同。在一些实施例中,图21为根据本申请一个或多个实施例的预设速度曲线示意图,预设速度曲线采用显示设备出厂时默认的上升曲线参数,如图21的路线1所示。但是由于机械设备的固有特性、南北温湿度、冬夏温湿度、机械老化对机械的影响,机械上升是存在损耗的,在漫长的过程中或差异的环境中,同一个机械的表现可能不同,甚至同一规格两个机械设备的表现就不相同。目前主要有两种老化问题,一个是屏幕电视逐渐老化,转速下降,导致屏幕抬起的时间比之前要长,如图21的路线2所示;第二个是屏幕老化,屏幕上升的高度比实际高度要低或者高,如图21的路线3所示。In some embodiments, the curling screen is controlled to ascend according to a preset speed curve, wherein the preset speed curve refers to a curve between time and curling screen height, and the preset height curve refers to a curve between time and preset image display height. The curve of time vs. curl screen height and the curve of time vs. preset image display height can be the same or different. In some embodiments, FIG. 21 is a schematic diagram of a preset speed curve according to one or more embodiments of the present application. The preset speed curve adopts the default ascending curve parameters of the display device when it leaves the factory, as shown in Route 1 in FIG. 21 . However, due to the inherent characteristics of mechanical equipment, the influence of temperature and humidity in north and south, temperature and humidity in winter and summer, and mechanical aging on machinery, there is a loss in the rise of machinery. In a long process or in different environments, the performance of the same machinery may be different, or even The performance of two mechanical devices of the same specification is not the same. At present, there are mainly two kinds of aging problems. One is that the screen TV gradually ages and the rotation speed decreases, which causes the screen to lift up longer than before, as shown in route 2 of Figure 21; The actual height should be lower or higher, as shown in line 3 in Figure 21.
本申请一些实施例提供一套上升曲线数据库。曲线公式:Some embodiments of the present application provide a set of rising curve databases. Curve formula:
实时高度h=Hmax*(Math.cos((t/Tmax+1)*Math.PI)/2.0f)+0.5f)公式3Real-time height h=Hmax*(Math.cos((t/Tmax+1)*Math.PI)/2.0f)+0.5f) formula 3
其中,Hmax为本次屏幕升起的总高度,t为当前时间,Tmax为本次屏幕升起的总时长。Among them, Hmax is the total height of the screen rising this time, t is the current time, and Tmax is the total time that the screen is rising this time.
将每次上升的实际高度和上升时间作为依据,存到历史数据库中,作为下次开机的参考依据。具体实现方法如下:1、在接口设计上,设计增加屏幕根据参数来上升的接口(将本次上升高度,总时间作为参数传给屏幕端)。2、每次开机会将本次开机的参数(例如,上升时间,根据实时高度,总时长通过曲线公式,反推出本次上升的速度,加速度等信息)。3、由于老化,温湿度都是慢慢影响的,因此可以取近10次开机,作为计算本次开机的初始速度,高度,加速度的依据。4、用户界面显示系统根据计算出的参数,拟合一条新的上升曲线。控制屏幕显示图像上升。同时发送串口命令给监测组件,同步上升。5、当屏幕上升到最高点,将本次开机的参数,再次计入上升曲线数据库,供下次开机使用。The actual height and ascent time of each ascent will be used as the basis, and stored in the historical database as a reference for the next startup. The specific implementation method is as follows: 1. In the interface design, design an interface for adding the screen to rise according to the parameters (pass the current rising height and the total time to the screen as parameters). 2. Each time the machine is powered on, the parameters of the current boot (for example, the ascent time, according to the real-time altitude, the total duration through the curve formula, inversely deduce the speed, acceleration and other information of the current ascent). 3. Due to aging, temperature and humidity are gradually affected, so nearly 10 times of startup can be taken as the basis for calculating the initial speed, height and acceleration of this startup. 4. The user interface shows that the system fits a new rising curve according to the calculated parameters. The control screen display image rises. At the same time, the serial port command is sent to the monitoring component, and it rises synchronously. 5. When the screen rises to the highest point, the parameters of this startup will be included in the rising curve database again for the next startup.
在一些实施例中,在按照预设速度曲线上升卷曲屏幕并按照预设高度曲线投射预设图像的过程中,如果检测到预设时间内卷曲屏幕高度未发生变化,停止投射预设图像和上升卷曲屏幕;在一些实施例中,在按照预设速度曲线上升卷曲屏幕并按照预设高度曲线投射预设图像的过程中,如果接收到监测组件发送异常状态信息,停止投射预设图像且停止上升卷曲屏幕;其中,卷曲屏幕的高度具体是指卷曲屏幕的最高点与卷曲屏幕底部(绝对零点)的距离。In some embodiments, during the process of ascending 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 a preset time, stop projecting the preset image and rising curling the screen; in some embodiments, during the process of ascending the curling screen 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 projecting of the preset image is stopped and the ascending is stopped Curling the screen; wherein, the height of the curling screen specifically refers to the distance between the highest point of the curling screen and the bottom (absolute zero point) of the curling screen.
在一些实施例中,卷曲屏幕高度的计算方法包括:控制器通过监测组件获取驱动组件的旋转圈数;控制器运行的屏幕显示计算服务根据驱动组件的旋转圈数,计算当前卷曲屏幕的高度。In some embodiments, the method for calculating the height of the curling screen includes: the controller obtains the number of rotations of the driving component through the monitoring component; the screen display calculation service run by the controller calculates the current height of the curling screen according to the number of rotations of the driving component.
<异常情况><abnormal situation>
在一些实施例中,当预设时间内卷曲屏幕高度未发生变化,说明此时屏幕已经卡住。控制卷曲屏幕进入复位状态,以使卷曲屏幕回到相对零点后重新按照预设速度曲线上升,所述投影组件重新按照预设高度曲线投射预设图像。图22为根据本申请一个或多个实施例提供的速度曲线示意图。在该过程中,时间与卷曲屏幕高度的曲线图如图22所示。在一些实施例中,复位状态是指将卷曲屏幕降至绝对零点后,再重新进入正常的开机流程。In some embodiments, when the height of the curled screen does not change within a preset time, it means that the screen is stuck at this time. The curling screen is controlled to enter the reset state, so that the curling screen returns to the relative zero point and then rises again according to the preset speed curve, and the projection component projects the preset image according to the preset height curve again. FIG. 22 is a schematic diagram of a speed curve provided according to one or more embodiments of the present application. During this process, a graph of time versus curling screen height is shown in Figure 22. In some embodiments, the reset state refers to re-entering the normal boot process after the curling screen is lowered to the absolute zero point.
在一些实施例中,图23为根据本申请一个或多个实施例提供的异常处理流程图。如图23所示,当屏幕控制系统轮询发送指令给监测组件,获取卷曲屏幕的当前状态、高度和异常信息后,控制图形图像服务停止将图像发送至投影组件;控制卷曲屏幕进入复位(reset)状态,当卷曲屏幕降至绝对零点后又上升到相对零点时,屏幕控制系统发送升屏指令,控制卷曲屏幕按预设速度曲线上升,同时,通知图形图像服务按照预设曲线将图像发送给投影组件投射到卷曲屏幕上。在卷曲屏幕重新上升的过程中,屏幕控制系统仍需要轮询发送指令给监测组件,获取卷曲屏幕的当前状态、高度等信息。卷曲屏幕的上升高度和图像的显示高度保持同步状态。当卷曲屏幕上升至最高点时,监测组件将该状态反馈给屏幕控制系统,卷曲屏幕上升完成。In some embodiments, FIG. 23 is a flowchart of exception handling provided in accordance with one or more embodiments of the present application. As shown in Figure 23, when the screen control system polls and sends an instruction to the monitoring component to obtain the current state, height and abnormal information of the curling screen, it controls the graphic image service to stop sending images to the projection component; controls the curling screen to enter reset (reset) ) state, when the curling screen drops to the absolute zero point and then rises to the relative zero point, the screen control system sends a screen-raising command to control the curling screen to rise according to the preset speed curve, and at the same time, notify the graphic image service to send the image to the preset curve according to the preset curve. The projection assembly projects onto the curled screen. In the process of the curling screen rising again, the screen control system still needs to poll and send an instruction to the monitoring component to obtain information such as the current state and height of the curling screen. The rising height of the curling screen and the display height of the image are kept in sync. When the curling screen rises to the highest point, the monitoring component feeds back the state to the screen control system, and the curling screen is lifted up.
在一些实施例中,卷曲屏幕的上升高度和图像的显示高度保持同步状态的步骤具体包括:实时获取当前卷曲屏幕的高度,并将当前卷曲屏幕的高度与图像的显示高度作比较。如果当前卷曲屏幕的高度低于图像的显示高度,则将图像裁剪成与卷曲屏幕高度相同的大小,非卷曲屏幕区域遮黑处理;如果当前卷曲屏幕的高度不低于图像的显示高度,继续按照预设曲线上升卷曲屏幕和显示图像。在一些实施例中,在按照预设速度曲线上升卷曲屏幕并按照预设高度曲线投射预设图像的过程中,如果检测到预设时间内卷曲屏幕高度未发生变化,暂停投射预设图像和上升卷曲屏幕;In some embodiments, the step of keeping the rising height of the curling screen and the display height of the image in a synchronized state specifically includes: acquiring the current height of the curling screen in real time, and comparing the current height of the curling screen with the display height of the image. If the height of the current curling screen is lower than the display height of the image, the image will be cropped to the same size as the height of the curling screen, and the area of the non-curling screen will be blacked out; if the height of the current curling screen is not lower than the display height of the image, continue to follow the The preset curve rises to curl the screen and display the image. In some embodiments, during the process of ascending 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 a preset time, the projecting of the preset image and the rising curl screen;
在一些实施例中,在按照预设曲线上升卷曲屏幕并投射预设图像的过程中,如果接收到监测组件发送异常状态信息,暂停投射预设图像和上升卷曲屏幕;在暂停投射预设图像和上升卷曲屏幕之后,控制投影组件投射用户界面于卷曲屏幕上,用户界面包括异常信息提示信息。在一些实施例中,异常信息提示信息包括异常信息提示文字和异常信息提示框。异常信息提示框具有一定高度,可将该高度设为预设高度。控制投影组件投射用户界面的步骤包括:根据当前卷曲屏幕高度确定用户界面的有效显示区域和非有效显示区域;将非有效显示区域遮黑处理;判断当前卷曲屏幕高度是否超过预设高度;如果当前卷曲屏幕高度未超过预设高度时,将异常信息提示文字设置在有效显示区域的预设位置,得到处理后的用户界面;如果当前卷曲屏幕高度超过预设高度时,将异常信息提示框设置在有效显示区域的预设位置,得到处理后的用户界面;控制投影组件将处理后的用户界面投射至卷曲屏幕上。In some embodiments, during the process of rising and curling the screen according to the preset curve and projecting the preset image, if abnormal status information sent by the monitoring component is received, the projection of the preset image and the rising and curling of the screen are suspended; After the curling screen is raised, the projection assembly is controlled to project a user interface on the curling screen, and the user interface includes abnormal information prompt information. In some embodiments, the abnormal information prompt information includes abnormal information prompt text and abnormal information prompt box. The abnormal information prompt box has a certain height, which can be set as a preset height. The steps of controlling the projection component to project the user interface include: determining the effective display area and the non-effective display area of the user interface according to the current height of the curling screen; masking the non-effective display area; judging whether the current curling screen height exceeds a preset height; When the height of the curling screen does not exceed the preset height, set the abnormal information prompt text at the preset position of the effective display area to obtain the processed user interface; if the current curling screen height exceeds the preset height, set the abnormal information prompt box in The preset position of the effective display area is obtained, and the processed user interface is obtained; the projection component is controlled to project the processed user interface onto the curling screen.
为了方便解释,已经结合具体的实施方式进行了上述说明。但是,上述在一些实施例中讨论不是意图穷尽或者将实施方式限定到上述公开的具体形式。根据上述的教导,可以得到多种修改和变形。上述实施方式的选择和描述是为了更好的解释原理以及实际的应用,从而使得本领域技术人员更好的使用实施方式。For the convenience of explanation, the above description has been made in conjunction with specific embodiments. However, the above discussion in some embodiments is not intended to be exhaustive or to limit implementations to the specific forms disclosed above. Numerous modifications and variations are possible in light of the above teachings. The above-mentioned embodiments are selected and described to better explain the principles and practical applications, so as to enable those skilled in the art to better use the embodiments.

Claims (10)

  1. 一种显示设备,包括:A display device comprising:
    屏幕,被配置为可卷曲升降;The screen, which is configured to be rolled up and down;
    驱动组件,被配置为驱动所述屏幕展开或卷曲;a drive assembly configured to drive the screen to unfold or curl;
    监测组件,被配置为在所述屏幕展开或卷曲过程中,监测所述屏幕的状态,并向控制器反馈所述屏幕的状态信息;a monitoring component, configured to monitor the state of the screen during the unfolding or rolling of the screen, and feed back the state information of the screen to the controller;
    控制器,被配置为:Controller, configured as:
    在根据所述状态信息确定所述屏幕为非水平状态时,调节所述驱动组件,以使所述驱动组件驱动所述屏幕的第一侧按照调节后的速度移动,以及以使所述屏幕恢复水平状态的同时所述屏幕的第一侧和第二侧的移动速度一致;When it is determined according to the state information that the screen is in a non-horizontal state, the drive assembly is adjusted so that the drive assembly drives the first side of the screen to move at the adjusted speed and to restore the screen In the horizontal state, the moving speed of the first side and the second side of the screen is the same;
    在根据所述状态信息确定所述屏幕为水平状态时,不调节所述驱动组件。When it is determined that the screen is in a horizontal state according to the state information, the driving assembly is not adjusted.
  2. 根据权利要求1所述的显示设备,所述控制器被配置为:The display device of claim 1, the controller configured to:
    根据所述状态信息计算所述屏幕的所述第一侧高度和所述第二侧高度;calculating the first side height and the second side height of the screen according to the state information;
    在所述第一侧高度和所述第二侧高度的高度差的绝对值小于或等于差异阈值时,确定所述屏幕为水平状态;When the absolute value of the height difference between the first side height and the second side height is less than or equal to a difference threshold, determining that the screen is in a horizontal state;
    在所述第一侧高度和所述第二侧高度的高度差的绝对值大于所述差异阈值时,确定所述屏幕为非水平状态。When the absolute value of the height difference between the first side height and the second side height is greater than the difference threshold, it is determined that the screen is in a non-horizontal state.
  3. 根据权利要求2所述的显示设备,所述监测组件包括图像采集器,所述状态信息为所述图像采集器采集的所述屏幕的图像信息,所述第一侧高度和所述第二侧高度为根据所述图像信息计算得到的。The display device according to claim 2, wherein the monitoring component comprises an image collector, the state information is image information of the screen collected by the image collector, the height of the first side and the height of the second side The height is calculated according to the image information.
  4. 根据权利要求2所述的显示设备,所述监测组件包括角度监测器,所述角度监测器被配置为监测所述驱动组件的旋转角度,所述状态信息为根据所述驱动组件的旋转角度和移动对应关系确定的信息,其中,所述移动对应关系为所述驱动组件的旋转角度和所述屏幕的移动距离之间的对应关系。The display device according to claim 2, wherein the monitoring assembly comprises an angle monitor configured to monitor the rotation angle of the driving assembly, and the status information is based on the rotation angle of the driving assembly and The information determined by the movement correspondence, wherein the movement correspondence is the correspondence between the rotation angle of the drive assembly and the movement distance of the screen.
  5. 根据权利要求1所述的显示设备,所述控制器被配置为:The display device of claim 1, the controller configured to:
    根据所述第一侧和所述第二侧的高度差和预设调节时间,确定调节所述第一侧移动速度的移动速度增量,以及根据所述第一侧和所述第二侧的高度差和当前上升时间,确定调节所述第一侧移动速度的移动速度增量补充值;Determine the movement speed increment for adjusting the movement speed of the first side according to the height difference between the first side and the second side and a preset adjustment time, and determine the movement speed increment for adjusting the movement speed of the first side and the second side Height difference and current ascent time, determine the moving speed increment supplementary value for adjusting the moving speed of the first side;
    以所述移动速度增量降低所述第一侧移动速度的同时,调节所述移动速度增量,直至所述移动速度增量下降至所述移动速度增量补充值;Adjusting the movement speed increment while reducing the movement speed of the first side by the movement speed increment until the movement speed increment decreases to the movement speed increment supplementary value;
    在所述屏幕处于上升过程中且所述第一侧的高度低于所述第二侧的高度时,调节所述第一侧的移动速度,具体步骤为:When the screen is in the rising process and the height of the first side is lower than the height of the second side, adjust the moving speed of the first side, and the specific steps are:
    根据所述第一侧和所述第二侧的高度差和预设调节时间,确定调节所述第一侧移动速度的移动速度增量,以及根据所述第一侧和所述第二侧的高度差和当前上升时间,确定调节所述第一侧移动速度的移动速度增量补充值;Determine the movement speed increment for adjusting the movement speed of the first side according to the height difference between the first side and the second side and a preset adjustment time, and determine the movement speed increment for adjusting the movement speed of the first side and the second side Height difference and current ascent time, determine the moving speed increment supplementary value for adjusting the moving speed of the first side;
    以所述移动速度增量提升所述第一侧移动速度的同时,调节所述移动速度增量,直至所述移动速度增量下降至所述移动速度增量补充值。While increasing the first side movement speed by the movement speed increment, the movement speed increment is adjusted until the movement speed increment decreases to the movement speed increment supplement value.
  6. 根据权利要求5所述的显示设备,所述控制器被配置为:The display device of claim 5, the controller configured to:
    每间隔预设间隔时间,将当前所述移动速度增量的值除以退步数值,得到下一预设间 隔时间采用的所述移动速度增量。At every preset interval, the current value of the moving speed increment is divided by the step-back value to obtain the moving speed increment used in the next preset interval.
  7. 根据权利要求1所述的显示设备,所述控制器被配置为:The display device of claim 1, the controller configured to:
    在根据所述状态信息确定所述屏幕是否为水平状态之前,在所述屏幕还未移动至基准零点位置时,控制所述驱动组件驱动所述屏幕移动至所述基准零点位置。Before determining whether the screen is in a horizontal state according to the state information, when the screen has not moved to the reference zero position, the driving component is controlled to drive the screen to move to the reference zero position.
  8. 一种显示设备的屏幕校正方法,所述方法应用于屏幕处于展开或卷曲的过程中,包括:A screen calibration method for a display device, the method being applied to a screen in the process of unfolding or curling, comprising:
    在所述显示设备处于展开或卷曲的过程中,根据监测组件反馈的所述屏幕的状态信息,确定所述屏幕为非水平状态时,调节驱动组件,以使所述驱动组件驱动所述屏幕的第一侧按照调节后的速度移动,以及以使所述屏幕恢复水平状态的同时所述屏幕的第一侧和第二侧的移动速度一致,其中所述驱动组件被配置为驱动所述屏幕展开或卷曲;During the unfolding or rolling process of the display device, when it is determined that the screen is in a non-horizontal state according to the status information of the screen fed back by the monitoring component, the driving component is adjusted so that the driving component drives the screen. the first side moves at the adjusted speed, and the first side and the second side of the screen move at the same speed while the screen is returned to a horizontal state, wherein the drive assembly is configured to drive the screen to unfold or curled;
    在根据监测组件反馈的所述屏幕的状态信息,确定所述屏幕为水平状态时,不调节所述驱动组件。When it is determined that the screen is in a horizontal state according to the state information of the screen fed back by the monitoring assembly, the driving assembly is not adjusted.
  9. 根据权利要求8所述的屏幕校正方法,根据所述状态信息确定所述屏幕是否为水平状态包括:The screen calibration method according to claim 8, wherein determining whether the screen is in a horizontal state according to the state information comprises:
    根据所述状态信息计算所述屏幕的所述第一侧高度和所述第二侧高度;calculating the first side height and the second side height of the screen according to the state information;
    在所述第一侧高度和所述第二侧高度的高度差的绝对值小于等于差异阈值时,确定所述屏幕为水平状态;When the absolute value of the height difference between the first side height and the second side height is less than or equal to a difference threshold, determining that the screen is in a horizontal state;
    在所述第一侧高度和所述第二侧高度的高度差的绝对值大于所述差异阈值时,确定所述屏幕为非水平状态。When the absolute value of the height difference between the first side height and the second side height is greater than the difference threshold, it is determined that the screen is in a non-horizontal state.
  10. 根据权利要求8所述的屏幕校正方法,在所述屏幕处于上升过程中且所述第一侧的高度高于所述第二侧的高度时,调节所述第一侧的移动速度包括:The screen calibration method according to claim 8, when the screen is in a rising process and the height of the first side is higher than the height of the second side, adjusting the moving speed of the first side comprises:
    根据所述第一侧和所述第二侧的高度差和预设调节时间,确定调节所述第一侧移动速度的移动速度增量,以及根据所述第一侧和所述第二侧的高度差和当前上升时间,确定调节所述第一侧移动速度的移动速度增量补充值;Determine the movement speed increment for adjusting the movement speed of the first side according to the height difference between the first side and the second side and a preset adjustment time, and determine the movement speed increment for adjusting the movement speed of the first side and the second side Height difference and current ascent time, determine the moving speed increment supplementary value for adjusting the moving speed of the first side;
    以所述移动速度增量降低所述第一侧移动速度的同时,调节所述移动速度增量,直至所述移动速度增量下降至所述移动速度增量补充值;Adjusting the movement speed increment while reducing the movement speed of the first side by the movement speed increment until the movement speed increment decreases to the movement speed increment supplementary value;
    在所述屏幕处于上升过程中且所述第一侧的高度低于所述第二侧的高度时,调节所述第一侧的移动速度包括:When the screen is in the rising process and the height of the first side is lower than the height of the second side, adjusting the moving speed of the first side includes:
    根据所述第一侧和所述第二侧的高度差和预设调节时间,确定调节所述第一侧移动速度的移动速度增量,以及根据所述第一侧和所述第二侧的高度差和当前上升时间,确定调节所述第一侧移动速度的移动速度增量补充值;Determine the movement speed increment for adjusting the movement speed of the first side according to the height difference between the first side and the second side and a preset adjustment time, and determine the movement speed increment for adjusting the movement speed of the first side and the second side Height difference and current ascent time, determine the moving speed increment supplementary value for adjusting the moving speed of the first side;
    以所述移动速度增量提升所述第一侧移动速度的同时,调节所述移动速度增量,直至所述移动速度增量下降至所述移动速度增量补充值。While increasing the first side movement speed by the movement speed increment, the movement speed increment is adjusted until the movement speed increment decreases to the movement speed increment supplement value.
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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115225877A (en) * 2022-07-15 2022-10-21 湖南省谛源光学科技有限公司 Projection synchronous display method, system and device of projection equipment
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
CN117288095B (en) * 2023-11-27 2024-02-13 浙江极氪汽车研究开发有限公司 Detection device and method for threshold floor lamp

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205080358U (en) * 2015-09-23 2016-03-09 上海晶唐智能科技有限公司 Projection frame curtain
WO2017180734A1 (en) * 2016-04-12 2017-10-19 Corning Incorporated Smart window projection screen
CN107481555A (en) * 2017-08-11 2017-12-15 青岛江河湖海创新技术研究院有限公司 A kind of indoor distance learning equipment of multimedia teaching
CN109270783A (en) * 2018-10-19 2019-01-25 深圳御光新材料有限公司 A kind of line holographic projections curtain
CN110851214A (en) * 2019-09-29 2020-02-28 深圳市火乐科技发展有限公司 Projection picture control method and related product
CN111273511A (en) * 2020-02-25 2020-06-12 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

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9329827B2 (en) * 2004-12-29 2016-05-03 Funmobility, Inc. Cropping of images for display on variably sized display devices
JP4466535B2 (en) * 2005-10-24 2010-05-26 セイコーエプソン株式会社 projector
US20100060547A1 (en) * 2008-09-11 2010-03-11 Sony Ericsson Mobile Communications Ab Display Device and Method for Displaying Images in a Variable Size Display Area
JP5625490B2 (en) * 2010-05-25 2014-11-19 セイコーエプソン株式会社 Projector, projection state adjustment method, and projection state adjustment program
CN104869377B (en) * 2012-03-14 2016-11-02 海信集团有限公司 A kind of method for correcting colors of projected image and projector
KR101892959B1 (en) * 2012-08-22 2018-08-29 삼성전자주식회사 Flexible display apparatus and flexible display apparatus controlling method
CN204440002U (en) * 2014-06-30 2015-07-01 江苏红叶视听器材股份有限公司 Large scale scrolling curtain
JP6494239B2 (en) * 2014-10-27 2019-04-03 キヤノン株式会社 Control device, control method, and program
CN204229113U (en) * 2014-12-01 2015-03-25 联想(北京)有限公司 Projection screen and electronic equipment
KR20160123620A (en) * 2015-04-16 2016-10-26 삼성전자주식회사 Display apparatus and method for displaying
KR102359544B1 (en) * 2015-06-22 2022-02-08 엘지전자 주식회사 Deformable display device and operating method thereof
KR102359550B1 (en) * 2015-08-26 2022-02-08 엘지전자 주식회사 Flexible display device and operating method thereof
JP6753049B2 (en) * 2015-10-09 2020-09-09 セイコーエプソン株式会社 Projector and projector control method.
KR102500060B1 (en) * 2015-11-18 2023-02-16 삼성전자주식회사 Electronic device and Method for controlling the electronic device thereof
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
US20180137840A1 (en) * 2016-11-17 2018-05-17 Fuji Xerox Co., Ltd. Terminal apparatus and non-transitory computer readable medium
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
CN109005394B (en) * 2018-09-19 2019-11-29 青岛海信激光显示股份有限公司 A kind of bearing calibration of projected image and projector
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
CN110830716B (en) * 2019-11-08 2021-08-27 南京星云数字技术有限公司 Image generation method and device, computer equipment and storage medium

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205080358U (en) * 2015-09-23 2016-03-09 上海晶唐智能科技有限公司 Projection frame curtain
WO2017180734A1 (en) * 2016-04-12 2017-10-19 Corning Incorporated Smart window projection screen
CN107481555A (en) * 2017-08-11 2017-12-15 青岛江河湖海创新技术研究院有限公司 A kind of indoor distance learning equipment of multimedia teaching
CN109270783A (en) * 2018-10-19 2019-01-25 深圳御光新材料有限公司 A kind of line holographic projections curtain
CN110851214A (en) * 2019-09-29 2020-02-28 深圳市火乐科技发展有限公司 Projection picture control method and related product
CN111273511A (en) * 2020-02-25 2020-06-12 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

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