CN113630569B

CN113630569B - Display apparatus and control method of display apparatus

Info

Publication number: CN113630569B
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: 2023-09-15
Anticipated expiration: 2041-08-05
Also published as: CN113630569A

Abstract

The embodiment of the invention provides a display device and a control method of the display device, comprising 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 a magnetic induction intensity value of the touch control pen when the touch control pen is close to or far from the fixed position; a controller coupled to the hall device, the controller configured to: determining the current state of the touch control pen provided with the first magnetic structure according to the magnetic induction intensity value detected by the Hall device; according to the current state, the count value corresponding to the first state or the second state is controlled to be increased by 1; and determining the actual state of the touch pen according to 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 in the fixed position, so that the actual state of the touch pen can be accurately determined based on the configuration of the controller, and the problem of false 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, the electronic whiteboard can be used for directly writing with a pen like a common whiteboard or a teaching blackboard, and then is input into a computer. With the continuous development of electronic whiteboards, television whiteboards are appeared, and the electronic whiteboards have the functions of televisions and electronic whiteboards, so that the modern multimedia teaching requirements of interaction, informatization, large-screen display and the like are realized.

When the function of the whiteboard in the television whiteboard needs to be used, the whiteboard needs to be awakened. Generally, the television is awakened in an infrared induction mode, and the television needs to be grooved on a front metal plate, so that the infrared induction device can conveniently emit infrared rays through the grooved position. Whether the touch pen is placed at the slotting position can be detected through infrared rays, so that whether the whiteboard is awakened is determined.

However, when an object of a non-stylus type is placed at the slotting position, the infrared sensing device can also be considered as a stylus placed at the slotting position, and there is a problem of false touch.

Disclosure of Invention

The embodiment of the invention provides display equipment and a control method of the display equipment, which are used for solving the problem of false touch 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 apparatus, including:

The touch control device comprises a front panel and a Hall device fixedly connected with the front panel, 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 from the fixed position;

a controller coupled to the hall device, the controller configured to:

determining the current state of the touch control pen 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;

according to the current state, the count value corresponding to the first state or the second state is controlled to be increased by 1;

determining an actual state of the stylus according to the 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 in the fixed position or not;

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

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

The second magnetic structure is arranged between the front panel and the Hall device and is 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 controller is specifically configured to:

if the current state of the touch pen is a first state, the first zone bit count value is controlled to be increased by one, and the actual state of the touch pen is determined to be placed in a fixed position;

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

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

if the second zone bit count value is smaller than the preset count value, determining that the actual state of the touch pen is placed in 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 the preset count value, determining that the actual state of the touch pen is not placed in 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 less than the preset count value, determining that the actual state of the touch pen is placed in a fixed position.

In some embodiments of the 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, resetting the first zone bit count value and the second zone bit count value.

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

receiving an instruction for performing calibration operation, which is triggered by a user;

according to the instruction, a confirmation frame is popped up, and the confirmation frame is used for a user to confirm whether preset conditions for performing calibration operation are met or not; wherein, the preset conditions are as follows: the stylus is not placed at the fixed position, and the Hall device is not affected 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 a plurality of 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 touch control pen is placed at the fixed position;

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

and determining the multiplication result as the detection threshold value.

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 value is greater than or equal to the detection threshold value, determining that the current state of the touch pen is a first state;

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

and if the second difference value is smaller than the detection threshold value, 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, including:

determining the current state of the touch pen 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 in a preset range of a fixed position, and the second state is used for indicating that the current state is located outside the preset range of the fixed position; the fixed position is used for placing a touch pen;

The display equipment comprises a front panel, a Hall device and a fixed position; the method comprises the steps that a controller connected with a Hall device is used for determining the current state of a touch pen provided with a first magnetic structure according to a magnetic induction value detected by the Hall device, the current state is a first state or a second state, meanwhile, a count value corresponding to the first state or the second state is updated according to the current state, finally, the actual state of the touch pen is determined based on 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 a fixed position, the whiteboard is controlled to wake up, and therefore the actual state of the touch pen can be detected based on the magnetic induction value detected by the Hall device, and 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 count value corresponding to the first state or the second state of the touch pen, and the problem of false 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 application or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.

A schematic diagram of an operational scenario between a display device and a control apparatus according to some embodiments is schematically shown in fig. 1;

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

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

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

an icon control interface display schematic of an application in a display device 200 according to some embodiments is illustrated in fig. 5;

a schematic structural diagram of various components in a display device according to some embodiments is exemplarily shown in fig. 6;

a schematic structural diagram illustrating placement of hall devices according to some embodiments is shown in fig. 7;

a schematic diagram of a display device waking up a whiteboard according to some embodiments is illustrated in fig. 8;

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

a flow diagram of a control method of a display device according to some embodiments is exemplarily shown in fig. 10.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

For the purposes of making the objects, embodiments and advantages of the present application more apparent, an exemplary embodiment of the present application will be described more fully hereinafter with reference to the accompanying drawings in which exemplary embodiments of the application are shown, it being understood that the exemplary embodiments described are merely some, but not all, of the examples of the application.

Based on the exemplary embodiments described herein, all other embodiments that may be obtained by one of ordinary skill in the art without making any inventive effort are within the scope of the appended claims. Furthermore, while the present disclosure has been described in terms of an exemplary embodiment or embodiments, it should be understood that each aspect of the disclosure can be practiced separately from the other aspects.

It should be noted that the brief description of the terminology in the present application is for the purpose of facilitating understanding of the embodiments described below only and is not intended to limit the embodiments of the present application. Unless otherwise indicated, these terms should be construed in their ordinary and customary meaning.

The terms first, second and the like in the description and in the claims and in the above-described figures are used for distinguishing between similar or similar objects or entities and not necessarily for describing a particular sequential or chronological order, unless otherwise indicated (Unless otherwise indicated). It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.

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

The term "module" as used in this disclosure 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 function associated with that element.

The term "remote control" as used herein refers to a component of an electronic device (such as a display device as disclosed herein) that can be controlled wirelessly, typically over a relatively short distance. Typically, the electronic device is connected to the electronic device using infrared and/or Radio Frequency (RF) signals and/or bluetooth, and may also include functional modules such as WiFi, wireless USB, bluetooth, motion sensors, etc. For example: the hand-held touch remote controller replaces most of the physical built-in hard keys in a general remote control device with a touch screen user interface.

The term "gesture" as used herein refers to a user behavior by which a user expresses an intended idea, action, purpose, and/or result through a change in hand shape or movement of a hand, etc.

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

In some embodiments, the control apparatus 100 may be a remote controller, and the communication between the remote controller and the display device includes infrared protocol communication or bluetooth protocol communication, and other short-range communication modes, etc., and the display device 200 is controlled by a wireless or other wired mode. The user may control the display device 200 by inputting user instructions through keys on a remote control, voice input, control panel input, etc. Such as: the user can input corresponding control instructions through volume up-down keys, channel control keys, up/down/left/right movement keys, voice input keys, menu keys, on-off keys, etc. on the remote controller to realize the functions of the control display device 200.

In some embodiments, mobile terminals, tablet computers, notebook computers, 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 running on a smart device. The application program, by configuration, can provide various controls to the user 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, implement connection communication through a network communication protocol, and achieve the purpose of one-to-one control operation and data communication. Such as: it is possible to implement a control command protocol established between the mobile terminal 300 and the display device 200, synchronize a remote control keyboard to the mobile terminal 300, and implement a function of controlling the display device 200 by controlling a user interface on the mobile terminal 300. The audio/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 device 200 is also in data communication with the server 400 via a variety of communication means. The display device 200 may be permitted to make communication connections via 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 device 200. By way of example, 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 may be multiple clusters, and may include one or more types of servers. Other web service content such as video on demand and advertising 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 limited, 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 a smart network television function of a computer support function, including, but not limited to, a network television, a smart television, an Internet Protocol Television (IPTV), etc., in addition to the broadcast receiving television function.

In addition, the display device 200 further 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 and duplication, shielding, zooming-in and zooming-out, video playing and playback, direct printing and the like. And a high-definition camera is configured, so that remote video network conference and remote teaching can be realized.

A hardware configuration block diagram of the display device 200 according to an exemplary embodiment is illustrated in fig. 2.

In some embodiments, at least one of the controller 250, the modem 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, the display 275 is configured to receive image signals from the first processor output, and to display video content and images and components of the menu manipulation interface.

In some embodiments, display 275 includes a display screen assembly for presenting pictures, and a drive assembly for driving the display of images.

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

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

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

In some embodiments, display 275 is a projection display and may further 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, or other network communication protocol chip or a near field communication protocol chip, and an infrared receiver.

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

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

In some embodiments, the detector 230 is a signal that the display device 200 uses to capture or interact with the external environment.

In some embodiments, the detector 230 includes an optical receiver, a sensor for capturing the intensity of ambient light, a parameter change may be adaptively displayed by capturing ambient light, etc.

In some embodiments, the detector 230 may further include an image collector, such as a camera, a video camera, etc., which may be used to collect external environmental scenes, collect attributes of a user or interact with a user, adaptively change display parameters, and recognize a user gesture to realize an interaction function 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 device 200 may adaptively adjust the display color temperature of the image. The display device 200 may be adjusted to display a colder color temperature shade of the image, such as when the temperature is higher, or the display device 200 may be adjusted to display a warmer color shade of the image when the temperature is lower.

In some embodiments, the detector 230 may also be a sound collector or the like, such as a microphone, that may be used to receive the user's sound. Illustratively, a voice signal including a control instruction for a user to control the display apparatus 200, or an acquisition environmental sound is used to recognize an environmental scene type so that the display apparatus 200 can adapt to environmental noise.

In some embodiments, as shown in fig. 2, the input/output interface 255 is configured to enable 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, command instruction data, or the like.

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

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

In some embodiments, the frequency point demodulated by the modem 210 is controlled by the controller 250, and the controller 250 may send a control signal according to the 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 a broadcasting system of the television signal. Or may be differentiated into digital modulation signals, analog modulation signals, etc., depending on the type of modulation. Or it may be classified into digital signals, analog signals, etc. according to the kind of signals.

In some embodiments, the controller 250 and the modem 210 may be located in separate devices, i.e., the modem 210 may also be located in an external device to the main device in which the controller 250 is located, such as an external set-top box or the like. In this way, 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 on the memory. The controller 250 may control the overall operation of the display apparatus 200. For example: in response to receiving a user command to select to display a UI object 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: operations to connect to a hyperlink page, document, image, etc., or operations to execute a program corresponding to an icon are displayed. The user command for selecting the UI object may be an input command through various input means (e.g., mouse, keyboard, touch pad, etc.) connected to the display device 200 or a voice command corresponding to a voice uttered by the user.

As shown in fig. 2, the controller 250 includes at least one of a random access Memory 251 (Random Access Memory, RAM), a Read-Only Memory 252 (ROM), a video processor 270, an audio processor 280, other processors 253 (e.g., a graphics processor (Graphics Processing Unit, GPU), a central processing unit 254 (Central Processing Unit, 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 on-the-fly programs, and in some embodiments ROM 252 is used to store various system boot instructions.

In some embodiments, ROM 252 is used to store a basic input output system, referred to as a basic input output system (Basic Input Output System, BIOS). The system comprises a drive program and a boot operating system, wherein the drive program is used for completing power-on self-checking of the system, initialization of each functional module in the system and basic input/output of the system.

In some embodiments, upon receipt of the power-on signal, the display device 200 power starts up, the CPU runs system boot instructions in the ROM 252, copies temporary data of the operating system stored in memory into the RAM 251, in order to start up or run the operating system. When the operating system is started, the CPU copies temporary data of various applications in the memory to the RAM 251, and then, facilitates starting or running of the various applications.

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 exemplary embodiments, the CPU processor 254 may comprise a plurality of processors. The plurality of processors may include one main processor and one or more sub-processors. A main processor for performing some operations of the display apparatus 200 in the pre-power-up mode and/or displaying a picture in the 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 configured to generate various graphical objects, such as: icons, operation menus, user input instruction display graphics, and the like. The device comprises an arithmetic unit, wherein the arithmetic unit is used for receiving various interaction instructions input by a user to carry out operation and displaying various objects according to display attributes. And a renderer for rendering the various objects obtained by the arithmetic unit, wherein the rendered objects are used for being displayed on a display.

In some embodiments, video processor 270 is configured to receive external video signals, perform video processing such as decompression, decoding, scaling, noise reduction, frame rate conversion, resolution conversion, image composition, etc., according to standard codec protocols for input signals, and may result in signals that are displayed or played on directly displayable device 200.

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

The demultiplexing module is used for demultiplexing the input audio/video data stream, such as the input MPEG-2, and demultiplexes the input audio/video data stream into video signals, audio signals and the like.

And the video decoding module is used for processing the demultiplexed video signals, including decoding, scaling and the like.

And an image synthesis module, such as an image synthesizer, for performing superposition mixing processing on the graphic generator and the video image after the scaling processing according to the GUI signal input by the user or generated by the graphic generator, so as to generate an image signal for display.

The frame rate conversion module is configured to convert the input video frame rate, for example, converting the 60Hz frame rate into the 120Hz frame rate or the 240Hz frame rate, and the common format is implemented in an inserting frame manner.

The display format module is used for converting the received frame rate into a video output signal, and changing the video output signal to a signal conforming to the display format, such as outputting an RGB data signal.

In some embodiments, the graphics processor 253 may be integrated with the video processor, or may be separately configured, where the integrated configuration may perform processing of graphics signals output to the display, and the separate configuration may perform different functions, such as gpu+ FRC (Frame Rate Conversion)) architecture, respectively.

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

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

In some embodiments, video processor 270 and 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 the controller 250, receives sound signals output by the audio processor 280, such as: the speaker 286, and an external sound output terminal that can be output to a generating device of an external device, other than the speaker carried by the display device 200 itself, such as: external sound interface or earphone interface, etc. can also include the close range 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 input from an external power source to the display device 200 under the control of the controller 250. The power supply 290 may include a built-in power circuit installed inside the display device 200, or may be an external power source installed in the display device 200, and a power interface for providing an external power source in the display device 200.

The user interface 265 is used to receive an input signal from a user and then transmit the received user input signal to the controller 250. The user input signal may be a remote control signal received through an infrared receiver, and various user control signals may be received through a network communication module.

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

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

In some embodiments, a "user interface" is a media interface for interaction and exchange of information between an application or operating system and a user that enables conversion between an internal form of information and a form acceptable to the user. A commonly used presentation form of the user interface is a graphical user interface (Graphic User Interface, GUI), which refers to a user interface related to computer operations that is displayed in a graphical manner. It may be an interface element such as an icon, a window, a control, etc. displayed in a 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 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 base module, a detection module, a communication module, a display control module, a browser module, various service modules, and the like.

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

For example, the voice recognition module includes 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, the 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 data communication between the browsing servers. And the service module is used for providing various services and various application programs. Meanwhile, the memory 260 also stores received external data and user data, images of various items in various user interfaces, visual effect maps of focus objects, and the like.

Fig. 3 exemplarily shows a block diagram of a configuration of the control apparatus 100 in accordance with 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 to receive an input operation instruction of a user, and to convert the operation instruction into an instruction recognizable and responsive to the display device 200, and to function as an interaction between the user and the display device 200. Such as: the user responds to the channel addition and subtraction operation by operating the channel addition and subtraction key on the control apparatus 100.

In some embodiments, the control apparatus 100 may be a smart device. Such as: the control apparatus 100 may install various applications for controlling the display device 200 according to user's needs.

In some embodiments, as shown in fig. 1, a mobile terminal 300 or other intelligent electronic device may function similarly to the control apparatus 100 after installing an application for manipulating the display device 200. Such as: the user may implement the functions of the physical keys of the control apparatus 100 by installing 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 to control the operation and operation of the control device 100, as well as the communication collaboration 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 device 200 under the control of the controller 110. Such as: the received user input signal is transmitted to the display device 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 touchpad 142, a sensor 143, keys 144, and other input interfaces. Such as: the user can implement a user instruction input function through actions such as voice, touch, gesture, press, and the like, and the input interface converts a received analog signal into a digital signal and converts the digital signal into a corresponding instruction signal, and sends the corresponding instruction signal to the display device 200.

The output interface includes an interface that transmits the received user instruction to the display device 200. In some embodiments, an infrared interface may be used, as well as 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. And the following steps: when the radio frequency signal interface is used, the user input instruction is converted into a digital signal, and then the digital signal is modulated according to a radio frequency control signal modulation protocol and then transmitted to the display device 200 through the radio frequency transmission 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 provided with a communication interface 130, such as: the WiFi, bluetooth, NFC, etc. modules may send the user input instruction to the display device 200 through a WiFi protocol, or a bluetooth protocol, or an NFC protocol code.

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 instructions 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. May be 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. The kernel, shell, and file system together form the basic operating system architecture that allows users to manage files, run programs, and use the system. After power-up, the kernel is started, the kernel space is activated, hardware is abstracted, hardware parameters are initialized, virtual memory, a scheduler, signal and inter-process communication (IPC) are operated and maintained. After the kernel is started, shell and user application programs are loaded again. The application program is compiled into machine code after being started to form a process.

Referring to FIG. 4, in some embodiments, the system is divided into four layers, from top to bottom, an application layer (referred to as an "application layer"), an application framework layer (Application Framework layer) (referred to as a "framework layer"), a An Zhuoyun row (Android run) and a system library layer (referred to as a "system runtime layer"), and a kernel layer, respectively.

In some embodiments, at least one application, which may be an operating system self-contained Window (Window) program, a system setup program, a clock program, a camera application, etc., is running in the application layer. And may be an application program developed by a third party developer, such as a hi-see program, a K-song program, a magic mirror program, etc. In particular implementations, the application packages in the application layer are not limited to the above examples, and may actually include other application packages, which the embodiments of the present application do not limit.

The framework layer provides an application programming interface (application programming interface, API) and programming framework for application programs of the application layer. The application framework layer includes a number of predefined functions. The application framework layer corresponds to a processing center that decides to let the applications in the application layer act. An application program can access resources in a system and acquire services of the system in execution through an API interface

As shown in fig. 4, the application framework layer in the embodiment of the present application includes a manager (manager), 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 that are running in the system. A Location Manager (Location Manager) is used to provide system services or applications with access to system Location services. A Package Manager (Package Manager) is used to retrieve various information about the application packages currently installed on the device. The notification manager (Notification Manager) is for controlling the display and clearing of notification messages. A Window Manager (Window Manager) is used to manage bracketing icons, windows, toolbars, wallpaper, and desktop components on the user interface.

In some embodiments, the activity manager is to: the lifecycle of each application program is managed, as well as the usual navigation rollback functions, such as controlling the exit of the application program (including switching the currently displayed user interface in the display window to the system desktop), opening, backing (including switching the currently displayed user interface in the display window to the previous user interface of the currently displayed user interface), etc.

In some embodiments, the window manager is configured to manage all window procedures, such as obtaining a display screen size, determining whether there is a status bar, locking the screen, intercepting the screen, controlling display window changes (e.g., scaling the display window down, dithering, distorting, etc.), and so on.

In some embodiments, the system runtime layer provides support for the upper layer, the framework layer, and when the framework layer is in use, the android operating system runs the C/C++ libraries contained 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 kernel layer contains at least one of the following drivers: audio drive, display drive, bluetooth drive, camera drive, WIFI drive, USB drive, HDMI drive, sensor drive (e.g., fingerprint sensor, temperature sensor, touch sensor, pressure sensor, etc.), and the like.

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

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

In some embodiments, taking a magic mirror application (photographing application) as an example, when the remote control receiving device receives an input operation of the remote control, a corresponding hardware interrupt is sent to the kernel layer. The kernel layer processes the input operation into the original input event (including the value of the input operation, the timestamp of the input operation, etc.). The original input event is stored at the kernel layer. The application program framework layer acquires 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 takes the input operation as a confirmation operation, wherein 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, the magic mirror application is started, and further, a camera driver is started by calling the kernel layer, so that a still image or video is captured through a 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) acted on a display screen by a user, 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 (e.g., multi-window mode) and window position and size corresponding to the input operation are set by the activity manager of the application framework layer. And window management of the application framework layer draws a window according to the setting of the activity manager, then the drawn window data is sent to a display driver of the kernel layer, and the display driver displays application interfaces corresponding to the window data in different display areas of the display screen.

In some embodiments, as shown in fig. 5, the application layer contains at least one icon control that the application can display in the display, such as: 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 inputs from cable television, radio broadcast, 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, the video on demand application may provide video from different storage sources. Unlike live television applications, video-on-demand provides video displays from some storage sources. For example, video-on-demand may come from the server side of cloud storage, from a local hard disk storage containing stored video programs.

In some embodiments, the media center application may provide various multimedia content playing applications. For example, a media center may be a different service than live television or video on demand, and a user may access various images or audio through a media center application.

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

The appearance of the television white board makes up the defect of the electronic white board, and realizes the functions of both the television and the electronic white board. When the television white board is used, if the function of the white board is needed, the white board needs to be awakened first. In the prior art, when waking up a whiteboard, one way is: a user wakes up a whiteboard by clicking a certain application installed in the display device; another way is: an infrared sensor is arranged in the display device, a front metal plate of the display device is slotted, and the infrared sensor can emit infrared rays through the slotted position.

However, the two ways of waking up the whiteboard have defects, and for the first way, the user is required to actively wake up the whiteboard, so that the problem of complicated operation is caused; in the second way, when the body of the user is blocked at the slotting position, the stylus is also considered to be placed at the slotting position, and false triggering is easily caused.

Based on this, in order to solve the above-mentioned technical problems, the inventor considers that the hall device can detect the magnetic induction intensity of the magnetic structure, if the magnetic structure is arranged in the stylus, and the hall device is arranged in the display device, different magnetic induction intensity values can be detected according to the condition that the stylus approaches to or departs from the hall device, so as to determine the state of the stylus, and whether to wake up the whiteboard can be determined according to the state of the stylus. By detecting the position of the stylus in the presence of a magnetic field, the process reduces the likelihood of false triggering by detecting a smaller object than by infrared sensors.

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 does not need to actively awaken the whiteboard, and the operation is simple.

The display device provided by the embodiment of the application comprises: the touch control device comprises a front panel and a Hall device fixedly connected with the front panel, 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 from the fixed position;

a controller coupled to the hall device, the controller configured to:

A schematic structural diagram of various components in a display device according to some embodiments is exemplarily shown in fig. 6, and the display device includes a front panel 601, a fixture 602, a hall device 603, a controller 604, and a stylus 605 as shown in fig. 6. The stylus 605 is provided with a first magnetic structure inside, so that the hall device 603 can detect the magnetic induction intensity.

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

The fixing portion 602 of the stylus may be a groove, a buckle, or a magnet adsorption structure. In practice, the fixing position 602 may be disposed at a position of the left lower side or the right lower side of the front panel 601, so as to be convenient for a user to pick up and put down.

Fig. 7 is a schematic structural diagram illustrating a placement manner of a hall device according to some embodiments, and as shown in fig. 7, the 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 placed, the X axis and the Y axis of the hall device 603 need to be placed parallel to a front panel 601 of the display device, so that the Z axis is used as a sensing direction of a magnetic field generated by the stylus 605.

In some embodiments, the hall device 603 may sense in real time a magnetic induction intensity value generated by the stylus 605 for the location of the hall device 603, where the magnetic induction intensity value may reflect the location 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 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 based on 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, wherein the first state refers to that the stylus is located in a preset range of a fixed position, for example, the stylus of a user is placed in the fixed position; the second state refers to the stylus being located outside the preset range of the fixed position, such as the user picking up the stylus.

If the current state of the stylus is only taken as the actual state of the stylus, there may be a situation of detection error, for example, in the process that the user holds the stylus and swipes the stylus from a fixed position, the controller may consider that the stylus is placed in the fixed position; alternatively, the controller may misunderstand that the user needs to wake up the whiteboard when the user picks up the pen and quickly drops it.

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, i.e. the corresponding count value is added by 1.

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

After determining the actual state of the stylus, when the stylus is not placed in a fixed position, then the operation of waking up the whiteboard is performed. Specifically, when the display device is powered on, the application layer starts a whiteboard awakening thread, the thread polls and reads the magnetic induction intensity detected by the Hall device, and after the actual state of the stylus is determined, if the stylus is not placed in a fixed position, an intent broadcast is sent, and the broadcasting content is the awakening whiteboard. The component for receiving the broadcast is a broadcast receiver, and performs corresponding processing according to the received broadcast content, for example, after receiving the broadcast for waking up the whiteboard, the action of waking up the whiteboard of the display device is performed.

According to the display device, the Hall device is arranged in the display device, the first magnetic structure is arranged in the touch pen, the controller is further arranged in the display device and connected with the Hall device, the current state of the touch pen 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 count values of the first state and the second state are updated, the actual state of the touch pen is determined by the updated count values and the current state, finally whether the whiteboard is awakened is determined according to the actual state, and the position of the touch pen with the magnetic field is detected, so that compared with the mode of an infrared sensor, the detected object is smaller, and the possibility of false triggering is reduced; in addition, the whiteboard is not required to be awakened manually by a user, and the operation is simple.

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

When the fixed position of the touch pen is a magnet adsorption structure, a second magnetic structure can be further arranged in the display device, and the second magnetic structure is arranged between the front panel and the Hall device. Specifically, the second magnetic structure is arranged corresponding to the fixing position, that is, the fixing position is determined by the arrangement position of the second magnetic structure, and the connecting line of the fixing position and the second magnetic structure is perpendicular to the front panel. When the user is not using the stylus, the stylus can be placed in a fixed position, and the second magnetic structure will attract the stylus with the first magnetic structure.

Through setting up the second magnetic structure in display device's inside, can need not to set up recess or buckle on leading panel, reduced grooved cost, improved display device's pleasing to the eye degree.

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 controller is specifically configured to:

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

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, the actual state of the stylus is indicated to be placed in the fixed position.

When the current state of the stylus is the second state, that is, when the stylus is located outside the preset range of the fixed position, it is necessary to continuously determine whether the stylus is touched by mistake, that is, whether the actual state of the stylus is not placed in the fixed position is detected.

In addition, after the current state of the stylus is determined, a first zone bit count value and a second zone bit count value need to be updated, and specifically, when the current state of the stylus is the first state, the first zone bit count value is controlled to be increased by 1; and when the current state of the touch control pen is the second state, controlling the second zone bit count value to be increased 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 zone bit count value and/or the second zone bit count value.

When the current state of the stylus is the second state, i.e. outside the preset range of the fixed position, it is possible to pick up the stylus for the user, and therefore further detection is required, and the actual state is determined according to the state of the stylus before this moment.

In some embodiments, the controller is specifically configured to:

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

As shown in fig. 8, if the second flag bit count value is smaller than the preset count value, it indicates that the action of the user for picking up the stylus is unstable, and the current state is detected as the second state, but the actual state is determined as being placed in the fixed position if the user touches the stylus by mistake. For example, the second flag bit count value is 2.

In addition, if the second flag bit count value is greater than or equal to the preset count value, it indicates that the action of the user for picking up the stylus is stable, but the first flag bit count value needs to be determined, and when the first flag bit count value is also greater than or equal to the preset count value, it indicates that the state of the stylus before being picked up by the user is placed in the fixed position, and then it can be determined that the actual state of the stylus is not placed in the fixed position. If the second flag bit count value is greater than or equal to 3, the first flag bit count value is greater than or equal to 3.

In addition, if the second flag bit count value is greater than or equal to the preset count value, but the first flag bit count value is less than or equal to the preset count value, this means that although the action of the user to pick up the stylus is stable, the stylus is not stably placed in the fixed position before this. Such as a false touch situation where the user is holding the stylus and is stroked from a fixed position. Since we focus mainly on the state where the user is not placed in the fixed position, the above-described false touch situation is determined as the state where the user is placed in the fixed position. For example, the first flag bit count value is 3, and the second flag bit count value is 1.

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

In some embodiments, the controller is further configured to:

After determining the actual state of the stylus according to the first flag bit count value and the second flag bit count value, the determining process of the actual state of the stylus is completed, and the first flag bit count value and the second flag bit count value need to be cleared, so that the actual state of the stylus can be accurately determined when the current state of the stylus is determined to be the second state next time.

In addition, it should be noted that when the actual state of the stylus pen is determined to be placed in the fixed position only by the first flag bit count value, and when the actual state of the stylus pen is determined to be placed in the fixed position by the second flag bit count value being smaller than the preset count value, zero clearing of the first flag bit count value and the second flag bit count value is not performed.

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

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

In some embodiments, the controller is specifically configured to:

When determining the current state of the stylus, the current magnetic induction intensity value, the reference value and the detection threshold value need to be determined. The current state of the touch pen cannot be determined only according to the magnetic induction intensity value, and the current state of the touch pen 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 positions corresponding to different magnitudes of magnetic induction intensity values generated by the touch control pen.

In some embodiments, the controller is further configured to:

When the reference value needs to be determined, a user is required to send a calibration operation instruction, and the display device can pop up a confirmation box when receiving the instruction so as to be convenient for inputting confirmation information. This is because, when performing the calibration operation, a preset condition needs to be satisfied, such as that the stylus is not placed in a fixed position, and the periphery of the hall device is not affected by other magnetic fields. And if the preset condition is met, the user is required to confirm, when the user confirms that the preset condition is met, confirmation information can be input, and the controller starts to execute the step of determining the reference value after receiving the confirmation information. When the user confirms that the preset condition is not met, the user is required to manually operate so that the current environment meets the preset condition.

The controller reads the magnetic induction intensity values detected by the Hall device for a plurality of times, calculates an average value of the magnetic induction intensity values, and takes the average value as a reference value when executing the step of determining the reference value. For example, when 10 magnetic induction values are read from the hall device, 10 magnetic induction values can be obtained, and an 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, so that the wake-up effect of the whiteboard is influenced by the difference, and a reference value suitable for the hall device can be set for each device.

In some embodiments, the controller is further configured to:

and determining the multiplication result as the detection threshold value.

In addition, a detection threshold is also required to be determined, and the detection threshold is used as a standard for judging whether the state of the stylus is not placed in the fixed position or is placed in the fixed position. Specifically, the magnetic induction intensity value detected when the stylus is placed at the fixed position may be taken as T1, the reference value may be taken as T2, and the detection threshold 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 is multiplied by a preset coefficient, and the multiplication result is used as the detection threshold. For example, the 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.

A schematic structural diagram of an arrangement of the second magnetic structure in the display device according to some embodiments is exemplarily shown in fig. 9. 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 shown in fig. 9 in which the N pole is close to the front panel, or the case shown in fig. 9 in which the S pole is close to the front panel. For the two cases, when the hall device detects the magnetic induction intensity in different display devices, the read magnetic induction intensity value may have a positive value or a negative value, and when the magnetic induction intensity value is a negative value, the magnetic induction intensity value becomes smaller when the stylus is close to the fixed position. 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 specifically configured to:

Wherein, since the north-south poles of the second magnetic structure are not distinguished when the second magnetic structure is mounted to the display device, when determining the current state from the read magnetic induction intensity value, it is necessary to process when the read magnetic induction intensity value is a positive value and a negative value, respectively.

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, namely, the current magnetic induction intensity value is calculated to subtract the reference value to obtain the first difference value, the first difference value is compared with a detection threshold value, and if the first difference value is greater than or equal to the detection threshold value, the stylus is considered to be located in a preset range of a fixed position. Otherwise, the stylus is considered to be outside the preset range of the fixed location.

In some embodiments, the controller is specifically configured to:

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

Fig. 10 is a schematic flow chart 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 the touch pen 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 in a preset range of a fixed position, and the second state is used for indicating that the current state is located outside the preset range of the fixed position; the fixed position is used for placing a touch pen;

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

Step S1003, determining an actual state of the stylus according to the 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;

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

According to the control method of the display device, the current state of the touch pen provided with the first magnetic structure is determined according to the magnetic induction intensity value detected by the Hall device, the current state is the first state or the second state, meanwhile, the count value corresponding to the first state or the second state is updated according to the current state, finally, the actual state of the touch pen is determined based on 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 a fixed position, the whiteboard is controlled to wake up, so that the actual state of the touch pen can be detected based on the magnetic induction intensity value detected by the Hall device, and 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 count value corresponding to the first state or the second state of the touch pen, and the problem of false 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 includes:

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:

and determining the multiplication result as the detection threshold value.

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

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

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 10, and will not be described herein.

The embodiment of the application also provides a computer readable storage medium, wherein computer execution instructions are stored in the computer readable storage medium, and when a processor executes the computer execution instructions, the control method of the display device in the embodiment is realized.

Meanwhile, the embodiment of the application also provides a computer product which can realize the control method of the display device in the embodiment.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same. Although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments may be modified or some or all of the technical features may be replaced with equivalents. Such modifications and substitutions do not depart from the spirit of the 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, characterized by comprising: the touch control device comprises a front panel and a Hall device fixedly connected with the front panel, 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 from the fixed position;

a controller coupled to the hall device, the controller configured to:

when the actual state of the touch pen is not placed in the fixed position, controlling a whiteboard of the display device to wake up so that the display device displays a whiteboard interface for the touch pen operation;

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 controller is specifically configured to:

if the current state of the touch pen is the second state, a second zone bit count value is controlled to be increased by one, and the actual state of the touch pen is determined according to the first zone bit count value and/or the second zone bit count value;

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

3. The display device of claim 2, wherein the controller is specifically further configured to:

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

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

5. The display device of claim 2, wherein the controller is specifically configured to:

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

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

and determining the multiplication result as the detection threshold value.

8. The display device of any of claims 5-7, wherein the controller is specifically configured to:

9. The display device of any of claims 5-7, wherein the controller is specifically configured to:

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

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;