CN113630569A

CN113630569A - Display apparatus and control method of display apparatus

Info

Publication number: CN113630569A
Application number: CN202110898787.8A
Authority: CN
Inventors: 张凯帝; 王建亮; 张耀仁; 刘加山
Original assignee: Hisense Visual Technology Co Ltd
Current assignee: Hisense Visual Technology Co Ltd
Priority date: 2021-08-05
Filing date: 2021-08-05
Publication date: 2021-11-09
Anticipated expiration: 2041-08-05
Also published as: CN113630569B

Abstract

The embodiment of the invention provides a display device and a control method of the display device, wherein the control method comprises the following steps: the touch control device comprises a front panel and a Hall device, wherein the front panel is provided with a fixed position for placing a touch control pen, and the Hall device is used for detecting the magnetic induction intensity value of the touch control pen when the touch control pen is close to or far away from the fixed position; a controller connected to the Hall device, the controller configured to: determining the current state of the stylus provided with the first magnetic structure according to the magnetic induction intensity value detected by the Hall device; controlling the count value corresponding to the first state or the second state to be added by 1 according to the current state; the actual state of the touch pen is determined according to the count value corresponding to the first state and/or the second state, when the actual state of the touch pen is not placed in the fixed position, the white board is controlled to be awakened, the actual state of the touch pen can be accurately determined based on the configuration of the controller, and the problem of mistaken touch in the prior art is solved.

Description

Display apparatus and control method of display apparatus

Technical Field

The embodiment of the invention relates to the technical field of display, in particular to display equipment and a control method of the display equipment.

Background

Through the electronic whiteboard, writing can be directly performed by using a pen like a common whiteboard or a teaching blackboard, and then the writing can be input into a computer. With the continuous development of electronic whiteboards, television whiteboards are developed, which have the functions of televisions and electronic whiteboards, and the requirements of modern multimedia teaching such as interactive, information and large-screen display are met.

When the function of the white board in the television white board needs to be used, the white board needs to be awakened. The device is generally awakened in an infrared induction mode, and a groove needs to be formed in a front metal plate of the television, so that an infrared induction device can emit infrared rays through the groove. Whether the touch pen is placed at the slotted position or not can be detected through infrared rays, and therefore whether the whiteboard is awakened or not is determined.

However, when a non-stylus type object is placed at the slot position, the infrared sensing device may also be considered as a stylus placed at the slot position, and there is a problem of erroneous touch.

Disclosure of Invention

The embodiment of the invention provides display equipment and a control method of the display equipment, and aims to solve the problem that mistaken touch exists when a whiteboard is awakened in an infrared induction mode in the prior art.

In a first aspect, an embodiment of the present invention provides a display device, including:

the touch control panel comprises a front panel and a Hall device fixedly connected with the front panel, wherein the front panel is provided with a fixing position for placing a touch control pen, and the Hall device is used for detecting the magnetic induction intensity value of the touch control pen when the touch control pen is close to or far away from the fixing position;

a controller connected to the Hall device, the controller configured to:

determining the current state of the stylus provided with the first magnetic structure according to the magnetic induction intensity value detected by the Hall device; the current state is a first state or a second state, the first state is used for indicating that the current state is located within a preset range of the fixed bit, and the second state is used for indicating that the current state is located outside the preset range of the fixed bit;

controlling the count value corresponding to the first state or the second state to be added by 1 according to the current state;

determining an actual state of the stylus according to a count value corresponding to the first state and/or the second state, wherein the actual state is used for indicating whether the stylus is placed at the fixed position;

and when the actual state of the touch pen is not placed in the fixed position, controlling the white board to wake up.

In some embodiments of the present application, the display device further includes: a second magnetic structure;

the second magnetic structure is arranged between the front panel and the Hall device and used for adsorbing the touch pen at the fixed position.

In some embodiments of the present application, the actual state of the stylus includes: the counting value corresponding to the first state is a first zone bit counting value, and the counting value corresponding to the second state is a second zone bit counting value; the control appliance is configured to:

if the current state of the touch pen is the first state, controlling the count value of the first zone bit to be increased by one, and determining that the actual state of the touch pen is placed at a fixed position;

and if the current state of the touch pen is the second state, controlling a second zone bit counting value to be increased by one, and determining the actual state of the touch pen according to the first zone bit counting value and/or the second zone bit counting value.

In some embodiments of the present application, the controller is configured to:

if the second zone bit count value is smaller than a preset count value, determining that the actual state of the touch pen is placed at a fixed position;

if the second zone bit count value is greater than or equal to a preset count value and the first zone bit count value is greater than or equal to a preset count value, determining that the actual state of the touch pen is not placed at a fixed position;

and if the second zone bit count value is greater than or equal to a preset count value and the first zone bit count value is smaller than the preset count value, determining that the actual state of the touch pen is placed at a fixed position.

In some embodiments of the present application, the controller is further configured to:

and after the actual state of the touch pen is determined according to the first zone bit count value and the second zone bit count value, clearing the first zone bit count value and the second zone bit count value.

and determining the current state of the stylus according to the current magnetic induction intensity value, the reference value and the detection threshold value.

receiving an instruction for carrying out calibration operation triggered by a user;

popping up a confirmation box according to the instruction, wherein the confirmation box is used for a user to confirm whether a preset condition for carrying out calibration operation is met; wherein the preset conditions are as follows: the touch pen is not placed at the fixed position, and the Hall device is not influenced by other surrounding magnetic fields;

and after receiving confirmation information input by a user, reading the magnetic induction intensity values detected by the Hall device under the preset condition for multiple times, and determining the average value of the read magnetic induction intensity values as the reference value.

reading a first magnetic induction intensity value detected by the Hall device; the first magnetic induction intensity value is a magnetic induction intensity value detected when the stylus is placed at the fixed position;

calculating a difference value between the first magnetic induction intensity value and the reference value, and multiplying an absolute value of the difference value by a preset coefficient to obtain a multiplication result;

determining the multiplication result as the detection threshold.

if the current magnetic induction intensity value is a positive value, calculating a first difference value between the current magnetic induction intensity value and the reference value;

if the first difference is larger than or equal to the detection threshold, determining that the current state of the touch pen is a first state;

and if the first difference is smaller than the detection threshold, determining that the current state of the touch pen is a second state.

if the current magnetic induction intensity value is a negative value, calculating a second difference value between the current magnetic induction intensity value and the reference value;

if the second difference is greater than or equal to the detection threshold, determining that the current state of the stylus is a first state;

and if the second difference is smaller than the detection threshold, determining that the current state of the touch pen is a second state.

In a second aspect, an embodiment of the present invention provides a method for controlling a display device, where the method includes:

determining the current state of the stylus provided with the first magnetic structure according to the magnetic induction intensity value detected by the Hall device; the current state is a first state or a second state, the first state is used for indicating that the current state is located within a preset range of a fixed bit, and the second state is used for indicating that the current state is located outside the preset range of the fixed bit; the fixed position is used for placing a touch pen;

The display equipment and the control method thereof provided by the embodiment of the application comprise a front panel, a Hall device and a fixed position; determining the current state of the stylus provided with the first magnetic structure according to the magnetic induction intensity value detected by the Hall device through a controller connected with the Hall device, wherein the current state is a first state or a second state, and simultaneously, updating the count value corresponding to the first state or the second state according to the current state, finally determining the actual state of the touch pen based on the count value corresponding to the first state and/or the second state, and controlling the whiteboard to wake up when the actual state of the touch pen is not placed at the fixed position, so that the actual state of the stylus can be detected based on the magnetic induction intensity value detected by the hall device, on the basis, the actual state of the touch pen can be accurately determined based on the current state of the touch pen and the counting value corresponding to the first state or the second state of the touch pen, and the problem of mistaken touch existing when the whiteboard is awakened based on infrared rays is solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic diagram illustrating an operational scenario between a display device and a control apparatus according to some embodiments;

a block diagram of a hardware configuration of a display device 200 according to some embodiments is illustrated in fig. 2;

a block diagram of the hardware configuration of the control device 100 according to some embodiments is illustrated in fig. 3;

a schematic diagram of a software configuration in a display device 200 according to some embodiments is illustrated in fig. 4;

FIG. 5 illustrates an icon control interface display diagram of an application in the display device 200, according to some embodiments;

FIG. 6 is a schematic diagram illustrating the structure of various components in a display device according to some embodiments;

FIG. 7 is a schematic diagram illustrating an exemplary placement of Hall devices according to some embodiments;

FIG. 8 is a schematic diagram illustrating a display device waking a whiteboard according to some embodiments;

fig. 9 is a schematic diagram illustrating an arrangement of second magnetic structures in a display device according to some embodiments;

a flow diagram illustrating a method of controlling a display device according to some embodiments is illustrated in fig. 10.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

To make the objects, embodiments and advantages of the present application clearer, the following description of exemplary embodiments of the present application will clearly and completely describe the exemplary embodiments of the present application with reference to the accompanying drawings in the exemplary embodiments of the present application, and it is to be understood that the described exemplary embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

All other embodiments, which can be derived by a person skilled in the art from the exemplary embodiments described herein without inventive step, are intended to be within the scope of the claims appended hereto. In addition, while the disclosure herein has been presented in terms of one or more exemplary examples, it should be appreciated that aspects of the disclosure may be implemented solely as a complete embodiment.

It should be noted that the brief descriptions of the terms in the present application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of the present application. These terms should be understood in their ordinary and customary meaning unless otherwise indicated.

The terms "first," "second," and the like in the description and claims of this application and in the above-described drawings are used for distinguishing between similar or analogous objects or entities and are not necessarily intended to limit the order or sequence Unless otherwise indicated. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.

Furthermore, the terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a product or device that comprises a list of elements is not necessarily limited to those elements explicitly listed, but may include other elements not expressly listed or inherent to such product or device.

The term "module," as used herein, refers to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic, or combination of hardware and/or software code that is capable of performing the functionality associated with that element.

The term "remote control" as used in this application refers to a component of an electronic device (such as the display device disclosed in this application) that is typically wirelessly controllable over a relatively short range of distances. Typically using infrared and/or Radio Frequency (RF) signals and/or bluetooth to connect with the electronic device, and may also include WiFi, wireless USB, bluetooth, motion sensor, etc. For example: the hand-held touch remote controller replaces most of the physical built-in hard keys in the common remote control device with the user interface in the touch screen.

The term "gesture" as used in this application refers to a user's behavior through a change in hand shape or an action such as hand motion to convey a desired idea, action, purpose, or result.

Fig. 1 is a schematic diagram illustrating an operation scenario between a display device and a control apparatus according to an embodiment. As shown in fig. 1, a user may operate the display device 200 through the mobile terminal 300 and the control apparatus 100.

In some embodiments, the control apparatus 100 may be a remote controller, and the communication between the remote controller and the display device includes an infrared protocol communication or a bluetooth protocol communication, and other short-distance communication methods, etc., and the display device 200 is controlled by wireless or other wired methods. The user may input a user command through a key on a remote controller, voice input, control panel input, etc. to control the display apparatus 200. Such as: the user can input a corresponding control command through a volume up/down key, a channel control key, up/down/left/right moving keys, a voice input key, a menu key, a power on/off key, etc. on the remote controller, to implement the function of controlling the display device 200.

In some embodiments, mobile terminals, tablets, computers, laptops, and other smart devices may also be used to control the display device 200. For example, the display device 200 is controlled using an application program running on the smart device. The application, through configuration, may provide the user with various controls in an intuitive User Interface (UI) on a screen associated with the smart device.

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 for the purpose of one-to-one control operation and data communication. Such as: the mobile terminal 300 and the display device 200 can establish a control instruction protocol, synchronize a remote control keyboard to the mobile terminal 300, and control the display device 200 by controlling a user interface on the mobile terminal 300. The audio and video content displayed on the mobile terminal 300 can also be transmitted to the display device 200, so as to realize the synchronous display function.

As also shown in fig. 1, the display apparatus 200 also performs data communication with the server 400 through various communication means. The display device 200 may be allowed to be communicatively connected through a Local Area Network (LAN), a Wireless Local Area Network (WLAN), and other networks. The server 400 may provide various contents and interactions to the display apparatus 200. Illustratively, the display device 200 receives software program updates, or accesses a remotely stored digital media library, by sending and receiving information, as well as Electronic Program Guide (EPG) interactions. The server 400 may be a cluster or a plurality of clusters, and may include one or more types of servers. Other web service contents such as video on demand and advertisement services are provided through the server 400.

The display device 200 may be a liquid crystal display, an OLED display, a projection display device. The particular display device type, size, resolution, etc. are not limiting, and those skilled in the art will appreciate that the display device 200 may be modified in performance and configuration as desired.

The display apparatus 200 may additionally provide an intelligent network tv function of a computer support function including, but not limited to, a network tv, an intelligent tv, an Internet Protocol Tv (IPTV), and the like, in addition to the broadcast receiving tv function.

In addition, the display device 200 also has a whiteboard function, and can be used for a user to directly implement various demonstration functions such as handwriting writing, graphic drawing, text input, file calling, courseware making, deletion copying, shielding, zooming in and out, video playing and playback, direct printing and the like. And a high-definition camera is configured, so that remote video network conferences and remote teaching can be realized.

A hardware configuration block diagram of a display device 200 according to an exemplary embodiment is exemplarily shown in fig. 2.

In some embodiments, at least one of the controller 250, the tuner demodulator 210, the communicator 220, the detector 230, the input/output interface 255, the display 275, the audio output interface 285, the memory 260, the power supply 290, the user interface 265, and the external device interface 240 is included in the display apparatus 200.

In some embodiments, a display 275 receives image signals originating from the first processor output and displays video content and images and components of the menu manipulation interface.

In some embodiments, the display 275, includes a display screen assembly for presenting a picture, and a driving assembly that drives the display of an image.

In some embodiments, the video content is displayed from broadcast television content, or alternatively, from various broadcast signals that may be received via wired or wireless communication protocols. Alternatively, various image contents received from the network communication protocol and sent from the network server side can be displayed.

In some embodiments, the display 275 is used to present a user-manipulated UI interface generated in the display apparatus 200 and used to control the display apparatus 200.

In some embodiments, a driver assembly for driving the display is also included, depending on the type of display 275.

In some embodiments, display 275 is a projection display and may also include a projection device and a projection screen.

In some embodiments, communicator 220 is a component for communicating with external devices or external servers according to various communication protocol types. For example: the communicator may include at least one of a Wifi chip, a bluetooth communication protocol chip, a wired ethernet communication protocol chip, and other network communication protocol chips or near field communication protocol chips, and an infrared receiver.

In some embodiments, the display apparatus 200 may establish control signal and data signal transmission and reception with the external control device 100 or the content providing apparatus through the communicator 220.

In some embodiments, the user interface 265 may be configured to receive infrared control signals from a control device 100 (e.g., an infrared remote control, etc.).

In some embodiments, the detector 230 is a signal used by the display device 200 to collect an external environment or interact with the outside.

In some embodiments, the detector 230 includes a light receiver, a sensor for collecting the intensity of ambient light, and parameters changes can be adaptively displayed by collecting the ambient light, and the like.

In some embodiments, the detector 230 may further include an image collector, such as a camera, etc., which may be configured to collect external environment scenes, collect attributes of the user or gestures interacted with the user, adaptively change display parameters, and recognize user gestures, so as to implement a function of interaction with the user.

In some embodiments, the detector 230 may also include a temperature sensor or the like, such as by sensing ambient temperature.

In some embodiments, the display apparatus 200 may adaptively adjust a display color temperature of an image. For example, the display apparatus 200 may be adjusted to display a cool tone when the temperature is in a high environment, or the display apparatus 200 may be adjusted to display a warm tone when the temperature is in a low environment.

In some embodiments, the detector 230 may also be a sound collector or the like, such as a microphone, which may be used to receive the user's voice. Illustratively, a voice signal including a control instruction of the user to control the display device 200, or to collect an ambient sound for recognizing an ambient scene type, so that the display device 200 can adaptively adapt to an ambient noise.

In some embodiments, as shown in fig. 2, the input/output interface 255 is configured to allow data transfer between the controller 250 and external other devices or other controllers 250. Such as receiving video signal data and audio signal data of an external device, or command instruction data, etc.

In some embodiments, the external device interface 240 may include, but is not limited to, the following: the interface can be any one or more of a high-definition multimedia interface (HDMI), an analog or data high-definition component input interface, a composite video input interface, a USB input interface, an RGB port and the like. The plurality of interfaces may form a composite input/output interface.

In some embodiments, as shown in fig. 2, the tuning demodulator 210 is configured to receive a broadcast television signal through a wired or wireless receiving manner, perform modulation and demodulation processing such as amplification, mixing, resonance, and the like, and demodulate an audio and video signal from a plurality of wireless or wired broadcast television signals, where the audio and video signal may include a television audio and video signal carried in a television channel frequency selected by a user and an EPG data signal.

In some embodiments, the frequency points demodulated by the tuner demodulator 210 are controlled by the controller 250, and the controller 250 can send out control signals according to user selection, so that the modem responds to the television signal frequency selected by the user and modulates and demodulates the television signal carried by the frequency.

In some embodiments, the broadcast television signal may be classified into a terrestrial broadcast signal, a cable broadcast signal, a satellite broadcast signal, an internet broadcast signal, or the like according to the broadcasting system of the television signal. Or may be classified into a digital modulation signal, an analog modulation signal, and the like according to a modulation type. Or the signals are classified into digital signals, analog signals and the like according to the types of the signals.

In some embodiments, the controller 250 and the modem 210 may be located in different separate devices, that is, the modem 210 may also be located in an external device of the main device where the controller 250 is located, such as an external set-top box. Therefore, the set top box outputs the television audio and video signals modulated and demodulated by the received broadcast television signals to the main body equipment, and the main body equipment receives the audio and video signals through the first input/output interface.

In some embodiments, the controller 250 controls the operation of the display device and responds to user operations through various software control programs stored in memory. The controller 250 may control the overall operation of the display apparatus 200. For example: in response to receiving a user command for selecting a UI object to be displayed on the display 275, the controller 250 may perform an operation related to the object selected by the user command.

In some embodiments, the object may be any one of selectable objects, such as a hyperlink or an icon. Operations related to the selected object, such as: displaying an operation connected to a hyperlink page, document, image, or the like, or performing an operation of a program corresponding to an icon. The user command for selecting the UI object may be a command input through various input means (e.g., a mouse, a keyboard, a touch pad, etc.) connected to the display apparatus 200 or a voice command corresponding to a voice spoken by the user.

As shown in fig. 2, the controller 250 includes at least one of a Random Access Memory 251 (RAM), a Read-Only Memory 252 (ROM), a video processor 270, an audio processor 280, other processors 253 (e.g., a Graphics Processing Unit (GPU), a Central Processing Unit 254 (CPU), a Communication Interface (Communication Interface), and a Communication Bus 256(Bus), which connects the respective components.

In some embodiments, RAM 251 is used to store temporary data for the operating system or other programs that are running, and in some embodiments, ROM 252 is used to store instructions for various system boots.

In some embodiments, the ROM 252 is used to store a Basic Input Output System (BIOS). The system is used for completing power-on self-test of the system, initialization of each functional module in the system, a driver of basic input/output of the system and booting an operating system.

In some embodiments, when the power-on signal is received, the display device 200 starts to power up, the CPU executes the system boot instruction in the ROM 252, and copies the temporary data of the operating system stored in the memory to the RAM 251 so as to start or run the operating system. After the start of the operating system is completed, the CPU copies the temporary data of the various application programs in the memory to the RAM 251, and then, the various application programs are started or run.

In some embodiments, CPU processor 254 is used to execute operating system and application program instructions stored in memory. And executing various application programs, data and contents according to various interactive instructions received from the outside so as to finally display and play various audio and video contents.

In some example embodiments, the CPU processor 254 may comprise a plurality of processors. The plurality of processors may include a main processor and one or more sub-processors. A main processor for performing some operations of the display apparatus 200 in a pre-power-up mode and/or operations of displaying a screen in a normal mode. One or more sub-processors for one operation in a standby mode or the like.

In some embodiments, the graphics processor 253 is used to generate various graphics objects, such as: icons, operation menus, user input instruction display graphics, and the like. The display device comprises an arithmetic unit which carries out operation by receiving various interactive instructions input by a user and displays various objects according to display attributes. And the system comprises a renderer for rendering various objects obtained based on the arithmetic unit, wherein the rendered objects are used for being displayed on a display.

In some embodiments, the video processor 270 is configured to receive an external video signal, and perform video processing such as decompression, decoding, scaling, noise reduction, frame rate conversion, resolution conversion, image synthesis, and the like according to a standard codec protocol of the input signal, so as to obtain a signal that can be displayed or played on the direct display device 200.

In some embodiments, video processor 270 includes a demultiplexing module, a video decoding module, an image synthesis module, a frame rate conversion module, a display formatting module, and the like.

The demultiplexing module is used for demultiplexing the input audio and video data stream, and if the input MPEG-2 is input, the demultiplexing module demultiplexes the input audio and video data stream into a video signal and an audio signal.

And the video decoding module is used for processing the video signal after demultiplexing, including decoding, scaling and the like.

And the image synthesis module is used for carrying out superposition mixing processing on the GUI signal input by the user or generated by the user and the video image after the zooming processing by the graphic generator so as to generate an image signal for display.

The frame rate conversion module is configured to convert an input video frame rate, such as a 60Hz frame rate into a 120Hz frame rate or a 240Hz frame rate, and the normal format is implemented in, for example, an interpolation frame mode.

The display format module is used for converting the received video output signal after the frame rate conversion, and changing the signal to conform to the signal of the display format, such as outputting an RGB data signal.

In some embodiments, the graphics processor 253 and the video processor may be integrated or separately configured, and when the graphics processor and the video processor are integrated, the graphics processor and the video processor may perform processing of graphics signals output to the display, and when the graphics processor and the video processor are separately configured, the graphics processor and the video processor may perform different functions, respectively, for example, a GPU + frc (frame Rate conversion) architecture.

In some embodiments, the audio processor 280 is configured to receive an external audio signal, decompress and decode the received audio signal according to a standard codec protocol of the input signal, and perform noise reduction, digital-to-analog conversion, and amplification processes to obtain an audio signal that can be played in a speaker.

In some embodiments, video processor 270 may comprise one or more chips. The audio processor may also comprise one or more chips.

In some embodiments, the video processor 270 and the audio processor 280 may be separate chips or may be integrated together with the controller in one or more chips.

In some embodiments, the audio output, under the control of controller 250, receives sound signals output by audio processor 280, such as: the speaker 286, and an external sound output terminal of a generating device that can output to an external device, in addition to the speaker carried by the display device 200 itself, such as: external sound interface or earphone interface, etc., and may also include a near field communication module in the communication interface, for example: and the Bluetooth module is used for outputting sound of the Bluetooth loudspeaker.

The power supply 290 supplies power to the display device 200 from the power input from the external power source under the control of the controller 250. The power supply 290 may include a built-in power supply circuit installed inside the display apparatus 200, or may be a power supply interface installed outside the display apparatus 200 to provide an external power supply in the display apparatus 200.

A user interface 265 for receiving an input signal of a user and then transmitting the received user input signal to the controller 250. The user input signal may be a remote controller signal received through an infrared receiver, and various user control signals may be received through the network communication module.

In some embodiments, the user inputs a user command through the control apparatus 100 or the mobile terminal 300, the user input interface responds to the user input through the controller 250 according to the user input, and the display device 200 responds to the user input through the controller 250.

In some embodiments, a user may enter user commands on a Graphical User Interface (GUI) displayed on the display 275, and the user input interface receives the user input commands through the Graphical User Interface (GUI). Alternatively, the user may input the user command by inputting a specific sound or gesture, and the user input interface receives the user input command by recognizing the sound or gesture through the sensor.

In some embodiments, a "user interface" is a media interface for interaction and information exchange between an application or operating system and a user that enables conversion between an internal form of information and a form that is acceptable to the user. A commonly used presentation form of the User Interface is a Graphical User Interface (GUI), which refers to a User Interface related to computer operations and displayed in a graphical manner. It may be an interface element such as an icon, a window, a control, etc. displayed in the display screen of the electronic device, where the control may include a visual interface element such as an icon, a button, a menu, a tab, a text box, a dialog box, a status bar, a navigation bar, a Widget, etc.

The memory 260 includes a memory storing various software modules for driving the display device 200. Such as: various software modules stored in the first memory, including: at least one of a basic module, a detection module, a communication module, a display control module, a browser module, and various service modules.

The base module is a bottom layer software module for signal communication between various hardware in the display device 200 and for sending processing and control signals to the upper layer module. The detection module is used for collecting various information from various sensors or user input interfaces, and the management module is used for performing digital-to-analog conversion and analysis management.

For example, the voice recognition module comprises a voice analysis module and a voice instruction database module. The display control module is used for controlling the display to display the image content, and can be used for playing the multimedia image content, UI interface and other information. And the communication module is used for carrying out control and data communication with external equipment. And the browser module is used for executing a module for data communication between browsing servers. And the service module is used for providing various services and modules including various application programs. Meanwhile, the memory 260 may store a visual effect map for receiving external data and user data, images of various items in various user interfaces, and a focus object, etc.

Fig. 3 exemplarily shows a block diagram of a configuration of the control apparatus 100 according to an exemplary embodiment. As shown in fig. 3, the control device 100 includes a controller 110, a communication interface 130, a user input/output interface, a memory, and a power supply.

The control apparatus 100 is configured to control the display device 200 and may receive an input operation instruction of a user and convert the operation instruction into an instruction recognizable and responsive by the display device 200, serving as an interaction intermediary between the user and the display device 200. Such as: the user operates the channel up/down key on the control device 100, and the display device 200 responds to the channel up/down operation.

In some embodiments, the control device 100 may be a smart device. Such as: the control apparatus 100 may install various applications that control the display device 200 according to user demands.

In some embodiments, as shown in fig. 1, a mobile terminal 300 or other intelligent electronic device may function similar to the control apparatus 100 after an application for manipulating the display device 200 is installed. Such as: the user may implement the function of controlling the physical keys of the apparatus 100 by installing an application, various function keys or virtual buttons of a graphical user interface available on the mobile terminal 300 or other intelligent electronic device.

The controller 110 includes a processor 112 and RAM 113 and ROM 114, a communication interface 130, and a communication bus. The controller is used for controlling the operation of the control device 100, as well as the communication cooperation among the internal components and the external and internal data processing functions.

The communication interface 130 enables communication of control signals and data signals with the display apparatus 200 under the control of the controller 110. Such as: the received user input signal is transmitted to the display apparatus 200. The communication interface 130 may include at least one of a WiFi chip 131, a bluetooth module 132, an NFC module 133, and other near field communication modules.

A user input/output interface 140, wherein the input interface includes at least one of a microphone 141, a touch pad 142, a sensor 143, keys 144, and other input interfaces. Such as: the user can realize a user instruction input function through actions such as voice, touch, gesture, pressing, and the like, and the input interface converts the received analog signal into a digital signal and converts the digital signal into a corresponding instruction signal, and sends the instruction signal to the display device 200.

The output interface includes an interface that transmits the received user instruction to the display apparatus 200. In some embodiments, the interface may be an infrared interface or a radio frequency interface. Such as: when the infrared signal interface is used, the user input instruction needs to be converted into an infrared control signal according to an infrared control protocol, and the infrared control signal is sent to the display device 200 through the infrared sending module. The following steps are repeated: when the rf signal interface is used, a user input command needs to be converted into a digital signal, and then the digital signal is modulated according to the rf control signal modulation protocol and then transmitted to the display device 200 through the rf transmitting terminal.

In some embodiments, the control device 100 includes at least one of a communication interface 130 and an input-output interface 140. The control device 100 is configured with a communication interface 130, such as: the WiFi, bluetooth, NFC, etc. modules may transmit the user input command to the display device 200 through the WiFi protocol, or the bluetooth protocol, or the NFC protocol code.

And a memory 190 for storing various operation programs, data and applications for driving and controlling the control device 200 under the control of the controller. The memory 190 may store various control signal commands input by a user.

And a power supply 180 for providing operation power support for each element of the control device 100 under the control of the controller. A battery and associated control circuitry.

In some embodiments, the system may include a Kernel (Kernel), a command parser (shell), a file system, and an application program. The kernel, shell, and file system together make up the basic operating system structure that allows users to manage files, run programs, and use the system. After power-on, the kernel is started, kernel space is activated, hardware is abstracted, hardware parameters are initialized, and virtual memory, a scheduler, signals and interprocess communication (IPC) are operated and maintained. And after the kernel is started, loading the Shell and the user application program. The application program is compiled into machine code after being started, and a process is formed.

Referring to fig. 4, in some embodiments, the system is divided into four layers, which are an Application (Applications) layer (abbreviated as "Application layer"), an Application Framework (Application Framework) layer (abbreviated as "Framework layer"), an Android runtime (Android runtime) and system library layer (abbreviated as "system runtime library layer"), and a kernel layer from top to bottom.

In some embodiments, at least one application program runs in the application layer, and the application programs may be windows (windows) programs carried by an operating system, system setting programs, clock programs, camera applications and the like. Or may be an application developed by a third party developer such as a hi program, a karaoke program, a magic mirror program, or the like. In specific implementation, the application packages in the application layer are not limited to the above examples, and may actually include other application packages, which is not limited in this embodiment of the present application.

The framework layer provides an Application Programming Interface (API) and a programming framework for the application program of the application layer. The application framework layer includes a number of predefined functions. The application framework layer acts as a processing center that decides to let the applications in the application layer act. The application program can access the resource in the system and obtain the service of the system in execution through the API interface

As shown in fig. 4, in the embodiment of the present application, the application framework layer includes a manager (Managers), a Content Provider (Content Provider), and the like, where the manager includes at least one of the following modules: an Activity Manager (Activity Manager) is used to interact with all activities running in the system. A Location Manager (Location Manager) is used to provide access to system Location services or applications. A Package Manager (Package Manager) is used to retrieve various information related to the application packages currently installed on the device. A Notification Manager (Notification Manager) is used to control the display and clearing of Notification messages. A Window Manager (Window Manager) is used to manage the icons, windows, toolbars, wallpapers, and desktop components on a user interface.

In some embodiments, the activity manager is to: managing the life cycle of each application program and the general navigation backspacing function, such as controlling the exit of the application program (including switching the user interface currently displayed in the display window to the system desktop), opening, backing (including switching the user interface currently displayed in the display window to the previous user interface of the user interface currently displayed), and the like.

In some embodiments, the window manager is configured to manage all window processes, such as obtaining a display size, determining whether a status bar is available, locking a screen, intercepting a screen, controlling a display change (e.g., zooming out, dithering, distorting, etc.) and the like.

In some embodiments, the system runtime layer provides support for the upper layer, i.e., the framework layer, and when the framework layer is used, the android operating system runs the C/C + + library included in the system runtime layer to implement the functions to be implemented by the framework layer.

In some embodiments, the kernel layer is a layer between hardware and software. As shown in fig. 4, the core layer includes at least one of the following drivers: audio drive, display drive, bluetooth drive, camera drive, WIFI drive, USB drive, HDMI drive, sensor drive (such as fingerprint sensor, temperature sensor, touch sensor, pressure sensor, etc.), and so on.

In some embodiments, the kernel layer further comprises a power driver module for power management.

In some embodiments, software programs and/or modules corresponding to the software architecture of fig. 4 are stored in the first memory or the second memory shown in fig. 2 or 3.

In some embodiments, taking the magic mirror application (photographing application) as an example, when the remote control receiving device receives a remote control input operation, a corresponding hardware interrupt is sent to the kernel layer. The kernel layer processes the input operation into an original input event (including information such as a value of the input operation, a timestamp of the input operation, etc.). The raw input events are stored at the kernel layer. The application program framework layer obtains an original input event from the kernel layer, identifies a control corresponding to the input event according to the current position of the focus and uses the input operation as a confirmation operation, the control corresponding to the confirmation operation is a control of a magic mirror application icon, the magic mirror application calls an interface of the application framework layer to start the magic mirror application, and then the kernel layer is called to start a camera driver, so that a static image or a video is captured through the camera.

In some embodiments, for a display device with a touch function, taking a split screen operation as an example, the display device receives an input operation (such as a split screen operation) that a user acts on a display screen, and the kernel layer may generate a corresponding input event according to the input operation and report the event to the application framework layer. The window mode (such as multi-window mode) corresponding to the input operation, the position and size of the window and the like are set by an activity manager of the application framework layer. And the window management of the application program framework layer draws a window according to the setting of the activity manager, then sends the drawn window data to the display driver of the kernel layer, and the display driver displays the corresponding application interface in different display areas of the display screen.

In some embodiments, as shown in fig. 5, the application layer containing at least one application may display a corresponding icon control in the display, such as: the system comprises a live television application icon control, a video on demand application icon control, a media center application icon control, an application center icon control, a game application icon control and the like.

In some embodiments, the live television application may provide live television via different signal sources. For example, a live television application may provide television signals using input from cable television, radio broadcasts, satellite services, or other types of live television services. And, the live television application may display video of the live television signal on the display device 200.

In some embodiments, a video-on-demand application may provide video from different storage sources. Unlike live television applications, video on demand provides a video display from some storage source. For example, the video on demand may come from a server side of the cloud storage, from a local hard disk storage containing stored video programs.

In some embodiments, the media center application may provide various applications for multimedia content playback. For example, a media center, which may be other than live television or video on demand, may provide services that a user may access to various images or audio through a media center application.

In some embodiments, an application center may provide storage for various applications. The application may be a game, an application, or some other application associated with a computer system or other device that may be run on the smart television. The application center may obtain these applications from different sources, store them in local storage, and then be operable on the display device 200.

The television whiteboard overcomes the defects of the electronic whiteboard, and the functions of both the television and the electronic whiteboard are realized. When the television whiteboard is used, if the function of the whiteboard is required to be used, the whiteboard needs to be awakened first. In the prior art, when waking up a whiteboard, one way is: a user wakes up the whiteboard by clicking a certain application installed in the display device; the other mode is as follows: an infrared inductor is arranged inside the display device, a front metal plate of the display device is grooved, and the infrared inductor can emit infrared rays through the grooving position.

However, both of the above two ways of waking up the whiteboard have drawbacks, and for the first way, the user needs to actively wake up the whiteboard, which has a problem of complicated operation; for the second mode, when the body of the user is shielded at the slotted position, the stylus is also considered to be placed at the slotted position, which is easy to cause false triggering.

Based on this, on the basis of the above embodiments, in order to solve the above technical problem, the inventor considers that the hall device can detect the magnetic induction intensity of the magnetic structure, and if the magnetic structure is provided in the stylus pen and the hall device is provided in the display device, different magnetic induction intensity values can be detected according to the proximity or the distance of the stylus pen to the hall device, so as to determine the state of the stylus pen, and whether to wake up the whiteboard according to the state of the stylus pen. In the process, the position of the touch pen with the magnetic field is detected, so that the detected object is smaller than that of an infrared sensor, and the possibility of false triggering is reduced.

In addition, when the user picks up the touch pen from the fixed position, the user is considered to need to write on the whiteboard, the whiteboard is awakened, the user is not required to actively awaken the whiteboard, and the operation is simple.

The display device provided by the embodiment of the application comprises: the touch control panel comprises a front panel and a Hall device fixedly connected with the front panel, wherein the front panel is provided with a fixing position for placing a touch control pen, and the Hall device is used for detecting the magnetic induction intensity value of the touch control pen when the touch control pen is close to or far away from the fixing position;

a controller connected to the Hall device, the controller configured to:

Fig. 6 schematically illustrates a structure of each component in a display device according to some embodiments, and as shown in fig. 6, the display device includes a front panel 601, a fixing unit 602, a hall device 603, a controller 604, and a stylus 605. The stylus 605 is provided with a first magnetic structure inside, so that the hall device 603 can detect magnetic induction.

The hall device 603 is arranged inside the display device, the setting position of the hall device 603 is not limited, and different parameters for determining the state of the stylus can be set at different positions. Optimally, the hall device 603 can be disposed at a position corresponding to the fixed position 602, that is, a line connecting the hall device 603 and the fixed position 602 is perpendicular to the front panel 601.

The fixing position 602 of the stylus pen may be a groove, a buckle, or a magnet-attracting structure. In practice, the fixing position 602 may be disposed at a lower left or lower right position of the front panel 601, which is convenient for the user to pick up and put down.

Fig. 7 is a schematic structural diagram schematically illustrating an arrangement manner of hall devices according to some embodiments, as shown in fig. 7, a hall device 603 includes three magnetic field sensing directions of an X axis, a Y axis and a Z axis, and when the hall device 603 is arranged, the X axis and the Y axis of the hall device 603 need to be arranged parallel to a front panel 601 of a display device, so that the Z axis is used as a sensing direction of a magnetic field generated by a stylus pen 605.

In some embodiments, the hall device 603 may sense, in real time, a magnetic induction value generated by the stylus 605 for the position of the hall device 603, and the magnetic induction value may reflect the position information of the stylus 605. The absolute value of the magnetic induction intensity value is larger as the stylus 605 is closer to the hall device 603, and the absolute value of the magnetic induction intensity value is smaller as the stylus 605 is farther from the hall device 603.

The controller 604 may read the magnetic induction value from the hall device 603 in a polling manner, and determine the current state of the stylus 605 according to the read magnetic induction value. For example, the current state of the stylus is queried every 300 ms. Specifically, the current state of the stylus includes a first state and a second state, where the first state refers to that the stylus is located within a preset range of a fixed position, for example, the stylus of a user is located at the fixed position; the second state is that the stylus is located outside the predetermined range of the fixed position, such as when the user picks up the stylus.

If only the current state of the stylus is taken as the actual state of the stylus, there may be a situation of detection error, for example, the controller may consider that the stylus is placed in the fixed position while the user is holding the stylus and stroking from the fixed position; or, when the user takes up the pen and puts down it quickly, the controller may misunderstand that the user needs to wake up the whiteboard.

Based on this, in order to accurately determine the actual state of the stylus, after determining the current state of the stylus, the count value corresponding to the first state or the second state needs to be changed, that is, the corresponding count value is increased by 1.

After the first state count value is obtained, the actual state of the stylus pen may be determined according to the count value corresponding to the first state and/or the second state. The touch control method includes the steps that whether the current state is mistaken touch operation or not can be determined not only based on the current state of the touch control pen, but also according to a count value corresponding to the touch control pen in the first state or the second state before the current time.

After the actual state of the stylus pen is determined, when the stylus pen is not placed at the fixed position, an operation of waking up the whiteboard is performed. Specifically, after the display device is powered on, the application layer can start a thread for waking up the whiteboard, the thread can poll and read the magnetic induction intensity detected by the hall device, after the actual state of the stylus is determined, if the stylus is not placed at a fixed position, the intent broadcast can be sent, and the broadcast content is the waking-up of the whiteboard. The component for receiving the broadcast is a broadcast receiver, and performs corresponding processing according to the received broadcast content, and if the broadcast for waking up the whiteboard is received, the component for waking up the whiteboard of the display device is executed.

According to the display equipment, the Hall device is arranged in the display equipment, the first magnetic structure is arranged in the stylus, the controller is further arranged in the display equipment and is connected with the Hall device, the current state of the stylus is determined by reading the magnetic induction intensity value detected by the Hall device, the current state is the first state or the second state, the counting values of the first state and the second state are updated, the actual state of the stylus is determined according to the updated counting values and the current state, whether the whiteboard is awakened or not is determined according to the actual state, and by detecting the position of the stylus with the magnetic field, compared with an infrared sensor mode, the detected object is small, and the possibility of false triggering is reduced; in addition, the user does not need to wake up the white board manually, and the method has the advantage of simplicity in operation.

In some embodiments, the display device further comprises: a second magnetic structure;

When the fixed position of the stylus is the magnet adsorption structure, a second magnetic structure can be further arranged inside the display device, wherein the second magnetic structure is arranged between the front panel and the Hall device. Specifically, the second magnetic structure is arranged corresponding to the fixed position, that is, the fixed position is determined by the arrangement position of the second magnetic structure, and a connection line between the fixed position and the second magnetic structure is perpendicular to the front panel. When the user does not use the stylus pen, the stylus pen can be placed at a fixed position, and the second magnetic structure can attract the stylus pen with the first magnetic structure.

Through the second magnetic structure arranged in the display device, a groove or a buckle is not required to be arranged on the front panel, so that the cost of slotting is reduced, and the attractiveness of the display device is improved.

In some embodiments, the actual state of the stylus includes: the counting value corresponding to the first state is a first zone bit counting value, and the counting value corresponding to the second state is a second zone bit counting value; the control appliance is configured to:

Fig. 8 is a schematic diagram illustrating a display device waking up a whiteboard according to some embodiments, as shown in fig. 8, wherein the actual state of the stylus determined by the controller includes two types, one is placed in a fixed position, and the other is not placed in the fixed position.

When the current state of the stylus is the first state, that is, the stylus is located within the preset range of the fixed position, it indicates that the actual state of the stylus is placed at the fixed position.

When the current state of the stylus is the second state, that is, the stylus is located outside the preset range of the fixed position, it needs to continuously determine whether the current state is a false touch condition, that is, it is detected whether the actual state of the stylus is not located at the fixed position.

In addition, after the current state of the stylus is determined, the first zone bit count value and the second zone bit count value also need to be updated, specifically, when the current state of the stylus is the first state, the first zone bit count value is controlled to be added by 1; and when the current state of the touch pen is the second state, controlling the count value of the second zone bit to be added by 1. Thus, when the current state of the stylus is the second state, the actual state of the stylus can be determined according to the first flag count value and/or the second flag count value.

When the current state of the stylus is the second state, i.e. outside the predetermined range of the fixed position, it is possible to pick up the stylus for the user, and therefore further detection is required to determine the actual state from the state of the stylus before that time.

In some embodiments, the controller is configured to:

In some embodiments, the number of the preset count value may be set according to practical experience, and in order to ensure the detection precision and the speed of waking up the whiteboard, the preset count value is set to 3, since the polling time is 300ms, that is, by detecting the actual state value of the stylus within about one second.

As shown in fig. 8, if the second flag count value is smaller than the preset count value, which indicates that the user has not lifted the stylus pen stably, the current state is detected to be the second state, but the user actually touches the stylus pen by mistake, and the actual state is determined to be placed at the fixed position. For example, the second flag bit count value is 2.

If the second flag count value is greater than or equal to the preset count value, which indicates that the user has picked up the stylus pen stably, but the first flag count value needs to be determined, and if the first flag count value is also greater than or equal to the preset count value, which indicates that the stylus pen is placed at the fixed position before being picked up by the user, it may be determined that the actual state of the stylus pen is not placed at the fixed position. If the second zone bit count value is greater than or equal to 3, the first zone bit count value is greater than or equal to 3.

If the second flag count value is greater than or equal to the preset count value, but the first flag count value is less than or equal to the preset count value, it indicates that the user has stably picked up the stylus pen, but the stylus pen has not been stably placed at the fixed position until then. Such as a mis-touch situation where the user is holding the stylus and stroking from a fixed position. Since we mainly pay attention to the state where the user is not placed at the fixed bit, the above-described false touch situation is determined as the state placed at the fixed bit. For example, the first flag count value is 3, and the second flag count value is 1.

Therefore, the occurrence of the false touch phenomenon can be further reduced through the action of the controller.

In some embodiments, the controller is further configured to:

After the actual state of the stylus is determined according to the first zone bit count value and the second zone bit count value, it indicates that the determination process of the actual state of the stylus in sequence is completed, and the first zone bit count value and the second zone bit count value need to be cleared, so that when the current state of the stylus is determined to be the second state at the next time, the actual state of the stylus can be accurately determined.

In addition, it should be noted that when the actual state of the stylus is determined to be placed at the fixed position only by the first flag count value, and when the actual state of the stylus is determined to be placed at the fixed position by the second flag count value being smaller than the preset count value, the first flag count value and the second flag count value are not cleared.

In addition, after the first zone bit count value and the second zone bit count value are cleared and the stylus is directly determined to be placed at the fixed position according to the current state of the stylus being the first state, the magnetic induction intensity value is continuously read.

By clearing the count value of the zone bit, accurate determination can be realized when the actual state of the stylus pen is determined next time.

In some embodiments, the controller is configured to:

When the current state of the stylus is determined, the current state needs to be determined according to the current magnetic induction intensity value, the reference value and the detection threshold value. The current state of the touch pen cannot be determined only according to the magnetic induction intensity value, and the current state also needs to be determined based on a reference value and a detection threshold value, wherein the reference value is used for measuring the magnitude of the magnetic induction intensity value generated by the touch pen; the detection threshold is used for measuring the positions corresponding to different magnitudes of the magnetic induction intensity values generated by the stylus.

In some embodiments, the controller is further configured to:

When the reference value needs to be determined, the user is first required to send an instruction of calibration operation, and when the display device receives the instruction, a confirmation box can pop up so as to be used for inputting confirmation information. This is because, when performing the calibration operation, it is necessary to satisfy a predetermined condition, such as the stylus being not placed in a fixed position and the hall device being not affected by other magnetic fields. And whether the preset condition is met or not needs to be confirmed by the user, when the preset condition is met, the user can input confirmation information, and the controller starts to execute the step of determining the reference value after receiving the confirmation information. And when the user confirms that the preset conditions are not met, the user needs to manually operate to enable the current environment to meet the preset conditions.

When the controller executes the step of determining the reference value, the controller reads the magnetic induction intensity values detected by the Hall device for multiple times, calculates an average value of the magnetic induction intensity values, and takes the average value as the reference value. For example, when 10 times of magnetic induction values are read from the hall device, 10 magnetic induction values can be obtained, and the average value of the 10 magnetic induction values is used as a reference value.

When different hall devices are placed at the same position of the same magnet, the induced magnetic induction intensity is different, and in order to eliminate the difference and influence the awakening effect of the whiteboard, a reference value suitable for the hall device can be set for each device.

In some embodiments, the controller is further configured to:

determining the multiplication result as the detection threshold.

In addition, a detection threshold is determined as a criterion for determining whether the stylus pen is not placed in the fixed position or placed in the fixed position. Specifically, the magnetic induction intensity value detected when the stylus pen is placed at the fixed position may be taken as T1, the reference value may be taken as T2, and the detection threshold value may be determined based on T1 and T2.

Specifically, the difference between T1 and T2 may be calculated, and the absolute value of the difference may be multiplied by a preset coefficient, and the multiplied result may be used as the detection threshold. For example, a preset coefficient is set to 0.5, that is, an average value of the intervals of T1 and T2 is taken as the detection threshold.

Fig. 9 is a schematic diagram illustrating an arrangement of second magnetic structures in a display device according to some embodiments. As shown in fig. 9, when the second magnetic structure is mounted to the display device, the N pole and the S pole of the second magnetic structure are not distinguished, which may be the case one shown in fig. 9, that is, the N pole is close to the front panel, or the case two shown, that is, the S pole is close to the front panel. For the two situations, when the hall device detects the magnetic induction intensity in different display devices, the read magnetic induction intensity value may have both a positive value and a negative value, and when the magnetic induction intensity value is a negative value, and when the stylus is close to the fixed position, the magnetic induction intensity value becomes smaller. Based on the above, the detection threshold is set based on the absolute value of the difference between T1 and T2.

In some embodiments, the controller is configured to:

When the second magnetic structure is mounted to the display device, the north and south poles of the second magnetic structure are not distinguished, and when the current state is determined according to the read magnetic induction intensity value, the current state needs to be processed respectively when the read magnetic induction intensity value is a positive value and a negative value.

When the read magnetic induction intensity value is a positive value, a first difference value between the current magnetic induction intensity value and the reference value can be calculated, that is, the current magnetic induction intensity value is calculated to subtract the reference value to obtain a first difference value, the first difference value is compared with a detection threshold value, and if the current magnetic induction intensity value is greater than or equal to the detection threshold value, the stylus is considered to be located within a preset range of the fixed position. Otherwise, the stylus is considered to be outside the preset range of the fixed position.

In some embodiments, the controller is configured to:

Correspondingly, when the current magnetic induction intensity value is a negative value, a second difference between the current magnetic induction intensity value and the sudden-rotation value can be calculated, specifically, the reference value is calculated and the current magnetic induction intensity value is subtracted to obtain a second difference, the second difference is compared with the detection threshold, the comparison process is the same as that when the magnetic induction intensity value is a positive value, and details are not repeated here.

Fig. 10 is a flowchart illustrating a control method of a display device according to some embodiments, and as shown in fig. 10, an embodiment of the present application further provides a control method of a display device, including:

step S1001, determining the current state of a stylus provided with a first magnetic structure according to the magnetic induction intensity value detected by the Hall device; the current state is a first state or a second state, the first state is used for indicating that the current state is located within a preset range of a fixed bit, and the second state is used for indicating that the current state is located outside the preset range of the fixed bit; the fixed position is used for placing a touch pen;

step S1002, controlling a count value corresponding to the first state or the second state to be added by 1 according to the current state;

step S1003, determining an actual state of the stylus according to a count value corresponding to the first state and/or the second state, where the actual state is used to indicate whether the stylus is placed in the fixed position;

step S1004, when the actual state of the stylus pen is not placed in the fixed position, controlling the whiteboard to wake up.

The control method for the display device provided in this embodiment determines, according to the magnetic induction intensity value detected by the hall device, a current state of the stylus pen provided with the first magnetic structure, where the current state is a first state or a second state, and at the same time, updating the count value corresponding to the first state or the second state according to the current state, finally determining the actual state of the touch pen based on the count value corresponding to the first state and/or the second state, and controlling the whiteboard to wake up when the actual state of the touch pen is not placed at the fixed position, so that the actual state of the stylus can be detected based on the magnetic induction intensity value detected by the hall device, on the basis, the actual state of the touch pen can be accurately determined based on the current state of the touch pen and the counting value corresponding to the first state or the second state of the touch pen, and the problem of mistaken touch existing when the whiteboard is awakened based on infrared rays is solved.

In some embodiments, the actual state of the stylus includes: the counting value corresponding to the first state is a first zone bit counting value, and the counting value corresponding to the second state is a second zone bit counting value; determining the actual state of the stylus according to the count value corresponding to the first state and/or the second state, including:

In some embodiments, determining the actual state of the stylus from the first flag count value and/or the second flag count value comprises:

In some embodiments, the method further comprises:

In some embodiments, determining the current state of the stylus provided with the first magnetic structure according to the magnetic induction intensity value detected by the hall device includes:

In some embodiments, the method further comprises:

determining the multiplication result as the detection threshold.

In some embodiments, determining the current state of the stylus according to the current magnetic induction intensity value, the reference value, and the detection threshold includes:

In some embodiments, determining the current state of the stylus according to the current magnetic induction intensity value, the reference value, and the detection threshold further includes:

The control method of the display device provided in the above embodiment corresponds to the functions implemented by the display device provided in the embodiments shown in fig. 6 to fig. 10, and is not described again here.

The embodiment of the present application further provides a computer-readable storage medium, where computer-executable instructions are stored in the computer-readable storage medium, and when a processor executes the computer-executable instructions, the method for controlling the display device in the foregoing embodiment is implemented.

Meanwhile, an embodiment of the present application may further provide a computer product, where the computer product may implement the control method of the display device in the foregoing embodiment.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same. Although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: it is also possible to modify the solutions described in the previous embodiments or to substitute some or all of them with equivalents. And the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

The foregoing description, for purposes of explanation, has been presented in conjunction with specific embodiments. However, the illustrative discussions above are not intended to be exhaustive or to limit the embodiments to the precise forms disclosed above. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles and the practical application, to thereby enable others skilled in the art to best utilize the embodiments and various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A display device, comprising: the touch control panel comprises a front panel and a Hall device fixedly connected with the front panel, wherein the front panel is provided with a fixing position for placing a touch control pen, and the Hall device is used for detecting the magnetic induction intensity value of the touch control pen when the touch control pen is close to or far away from the fixing position;

a controller connected to the Hall device, the controller configured to:

2. The display device according to claim 1, further comprising: a second magnetic structure;

3. The display device of claim 2, wherein the actual state of the stylus comprises: the counting value corresponding to the first state is a first zone bit counting value, and the counting value corresponding to the second state is a second zone bit counting value; the control appliance is configured to:

4. The display device according to claim 3, wherein the controller is configured to:

5. The display device of claim 4, wherein the controller is further configured to:

6. The display device according to claim 2, wherein the controller is configured to:

7. The display device of claim 6, wherein the controller is further configured to:

8. The display device of claim 6, wherein the controller is further configured to:

determining the multiplication result as the detection threshold.

9. The display device according to any one of claims 6 to 8, wherein the controller is configured to:

10. The display device according to any one of claims 6 to 8, wherein the controller is configured to:

11. A control method of a display device, characterized by comprising: