CN112579021B

CN112579021B - Courseware display method, system, device and storage medium

Info

Publication number: CN112579021B
Application number: CN201910941705.6A
Authority: CN
Inventors: 陈俊伟; 张超
Original assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Current assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2023-03-10
Anticipated expiration: 2039-09-30
Also published as: CN112579021A

Abstract

The embodiment of the invention discloses a courseware display method, a courseware display system, courseware display equipment and a storage medium, wherein the method comprises the following steps: the controller generates a first main video signal according to the courseware; the controller generates a second main video signal according to the electronic whiteboard; if the blackboard writing operation acts on the main display equipment, the controller transmits a second main video signal to the main display controller; the main display controller transmits a second sub video signal generated based on the second main video signal to the signal converter; the controller transmits the first main video signal to the signal switcher; the main display controller control signal switcher transmits the first main video signal to the auxiliary display controller, and the auxiliary display controller is used for transmitting the first sub video signal converted from the first main video signal to the auxiliary screen for playing. The embodiment of the invention uniformly manages the courseware and the electronic whiteboard by the controller, so that a user can operate the courseware and the electronic whiteboard on the current main display equipment without going to different machines to operate the courseware and the electronic whiteboard, thereby greatly improving the convenience of operation.

Description

Courseware display method, system, device and storage medium

Technical Field

The embodiment of the invention relates to the technology of education, in particular to a courseware display method, a courseware display system, courseware display equipment and a storage medium.

Background

In some classrooms, a machine is used as a multimedia device in conjunction with a blackboard for teaching.

However, one machine has a limited screen size, and in a scene where a larger screen is required to display teaching contents, some classrooms use two machines placed side by side to extend a display area.

The two machines are only physically spliced together, the two machines still work independently and independently to independently display courseware, electronic whiteboards and the like, and users need to go to different machines to operate courseware, electronic whiteboards and the like, so that the operation is complex.

Disclosure of Invention

The embodiment of the invention provides a courseware display method, a courseware display system, courseware display equipment and a storage medium, and aims to solve the problems that two machines independently display courseware and an electronic whiteboard is complex to operate.

In a first aspect, an embodiment of the present invention provides a courseware display method, where a main display device is connected to a secondary display device, and the main display device is provided with a controller, a main display controller, a signal switcher, a signal converter, and a main screen; the auxiliary display device is provided with an auxiliary display controller and an auxiliary screen; the method comprises the following steps:

the controller determines courseware and generates a first main video signal according to the courseware;

the controller receives the blackboard writing operation and generates a second main video signal according to the electronic whiteboard;

if the blackboard writing operation acts on the main display equipment, the controller transmits the second main video signal to the main display controller; the main display controller generates a second sub video signal based on the second main video signal, wherein the second sub video signal is a screen driving signal matched with the main screen; the main display controller transmits the second sub video signal to the signal converter, and the signal converter is used for transmitting the second sub video signal to a main screen for playing;

the controller transmits the first main video signal to the signal switcher; the main display controller transmits an enabling signal to the signal switcher to control the signal switcher to transmit the first main video signal to the auxiliary display controller, and the auxiliary display controller is used for converting the first main video signal into a first sub video signal and transmitting the first sub video signal to the auxiliary screen for playing.

In a second aspect, an embodiment of the present invention further provides a main display device, where the main display device is connected to a secondary display device, and a controller, a main display controller, a signal switcher, a signal converter, and a main screen are disposed in the main display device; the auxiliary display equipment is provided with an auxiliary display controller and an auxiliary screen, wherein the controller is used for:

determining courseware, and generating a first main video signal according to the courseware;

receiving a blackboard writing operation, and generating a second main video signal according to the electronic whiteboard;

if the blackboard-writing operation acts on the main display device, transmitting the second main video signal to the main display controller;

the main display controller is used for:

generating a second sub video signal based on the second main video signal, wherein the second sub video signal is a screen driving signal matched with the main screen; transmitting the second sub video signal to the signal converter, wherein the signal converter is used for transmitting the second sub video signal to a main screen for playing;

the controller further configured to transmit the first main video signal to the signal switcher; and transmitting an enabling signal to the signal switcher to control the signal switcher to transmit the first main video signal to the auxiliary display controller, wherein the auxiliary display controller is used for converting the first main video signal into a first sub video signal and transmitting the first sub video signal to the auxiliary screen for playing.

In a third aspect, an embodiment of the present invention further provides a courseware display system, where the system includes a main display device and a sub display device connected to each other, and the main display device is provided with a controller, a main display controller, a signal switcher, a signal converter, and a main screen; the auxiliary display device is provided with an auxiliary display controller and an auxiliary screen;

wherein the controller is to:

if the blackboard-writing operation acts on the main display equipment, transmitting the second main video signal to the main display controller;

the main display controller is used for:

the controller is further configured to transmit the first main video signal to the signal switcher; transmitting an enable signal to the signal switcher to control the signal switcher to transmit the first main video signal to the secondary display controller;

and the auxiliary display controller is used for converting the first main video signal into a first sub video signal and transmitting the first sub video signal to the auxiliary screen for playing.

In a fourth aspect, an embodiment of the present invention further provides a computer device, where the computer device includes:

one or more processors;

a memory for storing one or more programs;

when executed by the one or more processors, cause the one or more processors to implement a method of displaying courseware as described in the first aspect.

In a fifth aspect, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the courseware display method according to the first aspect.

In the embodiment, the controller determines a courseware and generates a first main video signal according to the courseware; the controller receives the blackboard writing operation and generates a second main video signal according to the electronic whiteboard; if the blackboard writing operation acts on the main display equipment, the controller transmits a second main video signal to the main display controller; the main display controller generates a second sub video signal based on the second main video signal, and the second sub video signal is a screen driving signal matched with the main screen; the main display controller transmits the second sub video signal to the signal converter, and the signal converter is used for transmitting the second sub video signal to the main screen for playing; the controller transmits the first main video signal to the signal switcher; the main display controller transmits the enabling signal to the signal switcher, the control signal switcher transmits the first main video signal to the auxiliary display controller, the auxiliary display controller is used for converting the first main video signal into a first sub video signal, the first sub video signal is transmitted to the auxiliary screen to be played, courseware and electronic white boards are uniformly managed by the controller, a user does not need to operate the courseware and the electronic white boards by different machines, the courseware and the electronic white boards can be operated by the current main display equipment, and the simplicity of operation is greatly improved.

Drawings

Fig. 1 is a schematic structural diagram of a main display device and an auxiliary display device according to an embodiment of the present invention;

fig. 2 is a flowchart of a courseware display method according to an embodiment of the present invention;

fig. 3 is a content schematic diagram of a courseware editing page according to an embodiment of the present invention;

fig. 4 is a flowchart of a courseware display method according to a second embodiment of the present invention;

fig. 5 is a flowchart of a courseware display method according to a third embodiment of the present invention;

fig. 6 is a flowchart of a courseware display method according to a fourth embodiment of the present invention;

fig. 7 is a flowchart of a courseware display method according to a fifth embodiment of the present invention;

fig. 8 is a flowchart of a courseware display method according to a sixth embodiment of the present invention;

fig. 9 is a schematic structural diagram of a main display device according to a seventh embodiment of the present invention;

fig. 10 is a schematic structural diagram of a courseware display system according to an eighth embodiment of the present invention;

fig. 11 is a schematic structural diagram of a computer device according to a ninth embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

Fig. 1 is a schematic structural diagram of a main display device and an auxiliary display device according to an embodiment of the present invention.

In the present embodiment, the main display device 10 has a data port, the sub display device 20 has a data port, and a data line is accessible between the data port of the main display device 10 and the data port of the sub display device 20, so as to connect the main display device 10 and the sub display device 20.

The data port of the primary display device 10 and the data port of the secondary display device 20 may be set with various types of pins such as a video pin, a data pin, a network pin, etc. according to service requirements.

The video pins may be used to transmit video signals, and in an example of using HDMI (High Definition Multimedia Interface) signals as video signals, one pair of video pins may be used to transmit HDMI clock signals, one pair of video signals may be used to transmit HDMI red signals, one pair of video signals may be used to transmit HDMI green signals, and one pair of video signals may be used to transmit HDMI blue signals.

The data pins may be used to transmit Serial signals, such as USB (Universal Serial BUS) 3.0 signals, USB2.0 signals, including signals of camera, MIC (microphone), TOUCH operation, and the like.

Network pins may be used to transmit network signals, such as gigabit network signals, for network communications.

In general, as shown in fig. 1, the main display device 10 may specifically include the following structure: the controller 110, the main display controller 120 that can convert a video signal into a screen driving signal, the signal converter 130 that can convert a screen driving signal into a video signal, the signal switch 140, the main screen 150, and the like.

The controller 110 belongs to a higher performance computing module.

For example, the controller 110 may be an Android module, that is, an Android system may be installed, and components such as a CPU (Central Processing Unit), a GPU (Graphics Processing Unit), a RAM (random access Memory), and a ROM (Read-Only Memory) are configured, for example, for the Android7.0 version, the CPU is a dual-core a72 and a quad-core a53, the GPU is a Mali T860, the RAM is 4GB, the ROM is 32GB, and so on.

For another example, the controller 110 may be a PC (personal computer) module configured with components such as a CPU, a GPU, a memory, and a hard disk, for example, for a plug-in Intel Core series modular computer, the CPU is Intel Core i5/i7, the GPU is kernel HD Graphics, the memory is DDR 4G/16G, and the hard disk is 128G/256G.

The main Display controller 120 belongs to Display Controllers (Display Controllers), and has a low operation performance, such as 811SOC (System on Chip), and is responsible for receiving video signals from a serial port of a computer, placing the video signals into a frame memory, and generating serial Display data and a scanning control timing sequence, i.e., a screen driving signal, required by a screen in a partition driving manner. Illustratively, the video signal is a High Definition Multimedia Interface (HDMI) signal, and the screen driving signal is a video serial Interface (V-By-One, VBO) signal or a Low Voltage Differential Signaling (LVDS) signal. The VBO signal has an advantage that a Clock (CLK) is superimposed on an original data signal of the video signal and transmitted in a common mode. Compared with HDMI signals, the method can omit CLK signal lines, and has low requirements on transmission wires due to the fact that the transmission distance is shorter, and the common five-type wires are enough. The LVDS interface performs data transmission by differential, i.e., low voltage differential signal transmission, on two printed circuit board traces or a pair of balanced cables with a very low voltage swing (about 350 mV). By adopting the LVDS interface, signals can be transmitted on a differential printed circuit board or a balance cable at the speed of hundreds of Mbit/s, and low noise and low power consumption are realized due to the adoption of a low-voltage and low-current driving mode. Generally, a display screen controller is internally provided with circuit logic for converting a video signal into a screen driving signal.

By using the cooperation between the controller 110 and the main display controller 120, the signal processing with high requirement on the operation performance, such as the annotation function, can be configured on the controller 110 with higher operation performance. Moreover, the cost of modifying the main display 120 itself is not increased.

Further, the master 120 is provided with a first video input port 121, a second video input port 122, a signal control port 123, and a master video output port 124.

The first video input port 121 is used for connecting with an electronic device to input a video signal, wherein the video signal is from the electronic device 30. Illustratively, the video signal of the electronic device 30 may comprise a graphical user interface of the electronic device 30. The electronic device 30 may be a mobile phone, a computer, a tablet, a screen transmission device, or other terminals.

The second video input port 122 is connected to the controller 110 for inputting video signals from the controller 110. Illustratively, the video signal of the controller 110 may include a graphical user interface of an operating system running on top of the controller 110.

The first video input port 121 may expose the housing of the main display device 10, serve as a pin in the data port, connect with the electronic device 30, and input a video signal of the electronic device 30 to the main display device 10.

The signal converter 130 belongs to a converter, and can receive a driving signal, and convert the driving signal into a first signal and a second signal for outputting, where the first signal is a video signal, and the second signal is a screen driving signal. For the main display device shown in fig. 1, the signal converter 130 has an input port 131, a first output port 132, and a second output port 133, as shown in fig. 1.

The input port 131 is connected to the main video output port 124 for inputting a screen driving signal.

The first output port 132 is used for outputting a video signal.

The second output port 133 is connected to the main screen 150 for outputting a screen driving signal.

That is, specifically, the signal converter 130 is configured to convert the screen driving signal input to the input port 131 into a first signal and a second signal, where the first signal is a video signal and the second signal is a screen driving signal, and the first signal and the second signal are output from the first output port 132 and the second output port 133, respectively.

The signal switch 140 belongs to a switch (switch), and can receive at least two video signals, which can be HDMI signals, and output one of the video signals. For the main display apparatus shown in fig. 1, as shown in fig. 1, the signal switcher 140 includes a first signal input port 141, a second signal input port 142, a signal output port 143, and a control port 144.

The first signal input port 141 is connected to the first output port 132 for inputting a video signal from the video signal of the signal converter 130; the video signal of the signal converter 130 is converted from the screen driving signal output by the main display controller 120; the screen driving signal outputted by the main display controller 120 may be converted by the main display controller 120 according to the video signal inputted from the electronic device 30, or the screen driving signal outputted by the main display controller 120 may be converted by the main display controller 120 according to the video signal inputted from the controller 110, and the main display controller 120 may select the screen driving signal.

The second signal input port 142 is connected to the controller 110 for inputting a video signal from the controller 110.

The control port 144 is connected to the signal control port 123 for receiving an enable signal.

The signal output port 143 is configured to output a video signal when the control port 144 receives the enable signal.

The signal output port 143 may expose the housing of the main display device 10, serve as a pin in the data port, be connected to the sub display device 20, and input the video signal output by the controller 110 or output by the signal converter 130 to the sub display device 20.

For example, when the main display 120 transmits a low-level signal as an enable signal to the signal switch 140, the signal switch 140 outputs a video signal transmitted by the signal converter 130.

When the main display controller 120 transmits the high-level signal as an enable signal to the signal switch 140, the signal switch 140 outputs the video signal transmitted by the controller 110.

In particular, the enable signal may include a first enable signal and a second enable signal. When the control port 144 of the signal switch 140 receives a first enable signal, such as a low-level signal, the signal output port 143 outputs a video signal from the first signal input port 141; when the control port 144 of the signal switch 140 receives a second enable signal, such as a high-level signal, the signal output port 143 outputs the video signal from the second signal input port 142.

That is, it is possible to control which video signal is output by inputting an enable signal to the control port 144 of the signal switch 140. Note that, among these, the video signal at the first signal input port 141, the video signal from the signal converter 130; the video signal of the signal converter 130 is converted from the screen driving signal output by the main display controller 120; the driving signal outputted from the master 120 is converted from the master 120 according to the video signal inputted from the electronic device 30, or the master 120 is converted from the video signal inputted from the controller 110. That is, when the control port 144 of the signal switch 140 receives the first enable signal, it may achieve an effect of outputting the video signal of the electronic device 30 or the video signal of the controller 110 to another display device, such as the sub-display device 20.

As shown in fig. 1, the secondary display device 20 may include a secondary display 210 that may convert a video signal into a screen driving signal, and a secondary screen 220. The sub display controller 210 is connected to the data interface of the main display device 10, and is configured to input a video signal; the sub screen 220 is connected to the sub display controller 210, and is used for inputting a screen driving signal.

The sub Display controller 210 belongs to Display Controllers (Display Controllers), has low operation performance, such as 811SOC, and is responsible for receiving video signals from a serial port of a computer, placing the video signals into a frame memory, and generating serial Display data and a scanning control timing sequence, i.e., a screen driving signal, required by a screen in a partition driving manner. Illustratively, the video signal is a High Definition Multimedia Interface (HDMI) signal, and the screen driving signal is a video serial Interface (V-By-One, VBO) signal or a Low Voltage Differential Signaling (LVDS) signal. The VBO signal has an advantage that a Clock (CLK) is superimposed on an original data signal of the video signal and transmitted in a common mode. Compared with HDMI signals, the method can omit CLK signal lines, and has low requirements on transmission wires due to the fact that the transmission distance is shorter, and the common five-type wires are enough. The LVDS interface performs data transmission by differential, i.e., low voltage differential signal transmission, on two printed circuit board traces or a pair of balanced cables with a very low voltage swing (about 350 mV). By adopting the LVDS interface, signals can be transmitted on a differential printed circuit board or a balanced cable at the speed of hundreds of Mbit/s, and low noise and low power consumption are realized due to the adoption of a low-voltage and low-current driving mode. Generally, a display screen controller is internally provided with circuit logic for converting a video signal into a screen driving signal.

The intelligent interactive flat panel is taken as an example of a main display device and a secondary display device, a hardware part of the intelligent interactive flat panel is composed of a screen (such as a main screen and a secondary screen), an intelligent processing system (including display controllers (such as a main display controller and a secondary display controller), or a controller and a display controller (such as a main display controller and a secondary display controller)), and the like, and is combined together by an integral structural member and is also supported by a special software system, wherein the screen comprises a display screen and a backlight assembly, and the display screen comprises a transparent electric conduction layer, a liquid crystal layer and the like.

The display screen, in the embodiments of the present specification, refers to a touch screen, and a touch panel, and is an inductive liquid crystal display device, when a graphical button on the screen is touched, the tactile feedback system on the screen can drive various connection devices according to a pre-programmed program, so as to replace a mechanical button panel, and create a vivid video effect by using a liquid crystal display screen. Touch screens are distinguished from technical principles and can be divided into five basic categories; a vector pressure sensing technology touch screen, a resistance technology touch screen, a capacitance technology touch screen, an infrared technology touch screen, and a surface acoustic wave technology touch screen. According to the working principle of the touch screen and the medium for transmitting information, the touch screen can be divided into four categories: resistive, capacitive, infrared, and surface acoustic wave.

When a user touches the screen with a finger or a pen, the point coordinates are positioned, so that the control of the intelligent processing system is realized, and then different functional applications are realized along with the built-in software of the intelligent processing system.

The screen and the large screen mentioned in the embodiment of the invention both refer to the display screen of the intelligent interactive flat panel; the intelligent interaction panel displays data such as a certain interface and annotation information, and the data refers to the data such as the interface and the annotation information displayed on a display screen of the intelligent interaction panel.

Further, the main display device 10 may further include: a routing module (not shown) that can receive an access signal when the first video input port 121 receives a video signal.

The routing module includes: a first network port (not shown), and a second network port (not shown).

The first network port is connected to the main display controller 120, and is configured to input an access signal, where the access signal is generated when the main display controller 120 detects that the electronic device 30 is accessed, and is sent to the routing module.

The second network port is connected to the slave display controller 210 for outputting an access signal. Further, the sub display controller 210 may convert the video signal received from the main display device 10 into a driving signal according to the access signal, and send the driving signal to the sub screen 220, so as to drive the sub screen 220 to display the video signal corresponding to the driving signal.

Example one

Fig. 2 is a flowchart of a courseware display method according to an embodiment of the present invention, and fig. 3 is a content diagram of a courseware editing page according to an embodiment of the present invention. The present embodiment is applicable to a case where a controller of a main display device controls a main screen to display an electronic whiteboard and a secondary screen to display courseware, and the method may be executed by the main display device and the secondary display device, where the main display device is connected to the secondary display device, and the main display device and the secondary display device may be implemented by software and/or hardware, where the main display device is provided with the controller, a main display controller, a signal switcher, a signal converter, and the main screen; the method specifically comprises the following steps:

s201, the controller determines courseware and generates a first main video signal according to the courseware.

In this embodiment, the user may set the display of the controller to "extend the desktop surfaces of the main display device and the sub display device", at which time, the controller may control one of the main display device and the sub display device to display a courseware and the other device to display an electronic whiteboard.

The courseware may be a course Document, which is created according to the teaching requirement through links such as teaching target determination, teaching content and task analysis, teaching activity structure and interface design, for example, PPT (PowerPoint, presentation), word (word processor application), PDF (Portable Document Format), txt (text Document), seewo (wish), and the like.

In one example, the courseware includes a preparation phase, an activity phase, and a summary phase as shown.

The preparation phase is a phase for preparing activities such as interesting classification (competition mode), grouping competition, and misjudgment.

In the preparation phase, parameters such as the type of activity, difficulty, number of participating users, time, etc. may be set.

For activities such as interesting classification (competition mode), grouping competition, right and wrong judgment and the like, if a start control is clicked, the activity can be expanded and the activity stage is entered.

For other activities, the activity phase is entered after entering the activity page or reset of the courseware.

In the activity phase, a control for selecting elements in the lecture listening terminal is activated to be in an operable state, at this time, the lecture listening terminal can operate the elements related to the activity, for example, in the activity of classifying "region" and "country", the card "Beijing", "New York", "USA" and "China" in the activity is dragged, the elements for controlling the activity (such as controls for pausing, continuing, resetting and the like) and the elements unrelated to the activity (such as shape and thinking guide diagram) can be operated.

In a summary phase, the results of the activity, such as scores, answers, etc., may be displayed, and in this phase, the lecture terminal may click on controls for resetting or viewing the answers.

In a particular implementation, the controller may determine a courseware, which is used to generate the first main video signal.

Wherein the first main video signal belongs to a video signal, such as an HDMI signal.

In one way of generating the first main video signal, a storage device is connected to the main display device, wherein the storage device is a device for storing data, such as a usb disk.

In this manner, the controller may read courseware from the storage device and store the courseware in a local cache.

At this time, the controller may call an application adapted to the format of the courseware, open the courseware, at this time, display the courseware on the desktop, convert the desktop data into a video signal, and thereby generate the first main video signal.

Of course, the manner of generating the first main video signal is only an example, and when the embodiment is implemented, other manners of generating the first main video signal may be set according to actual situations, for example, downloading a courseware from a cloud and generating the first main video signal according to the courseware, and the like, which is not limited in this embodiment of the present invention. In addition to the above-mentioned manner of generating the first main video signal, a person skilled in the art may also adopt other manners of generating the first main video signal according to actual needs, and this embodiment is not limited to this.

And S202, the controller receives the blackboard-writing operation and generates a second main video signal according to the electronic whiteboard.

In this embodiment, a user may control the main display device to enter a blackboard-writing mode according to a demonstration situation of an actual courseware, trigger blackboard-writing operation, and start the electronic whiteboard, where the electronic whiteboard is displayed on a desktop and converts desktop data into a video signal, so as to generate a second main video signal.

The writing on the blackboard operation is understood from a dynamic point of view, and is a way of transmitting teaching information by characters and symbols written on a blackboard by a teacher in class and a speech activity of a teacher, which is also called teaching written language. From the static perspective, it is a general term of teaching information that teachers utilize blackboards to display concise and concise characters, symbols, diagrams and the like in order to help students understand and master knowledge during teaching.

The main display device is provided with application software carried by an operating system, and is also provided with application software downloaded from a third-party device or a server, wherein the specific type and content of the application software can be set according to actual conditions, and generally, the application software has the function of an electronic whiteboard and can be realized through the function of the electronic whiteboard: writing, drawing, commenting, courseware making, displaying and playing. In this embodiment, the electronic whiteboard is set to have functions of courseware making and displaying and playing, where courseware making refers to an element input or insertion operation performed by a user in a courseware editing page on the main display device, specifically, the courseware editing page refers to an editing page provided with an editing canvas, an inputtable element column, an editing setting option, and a displaying and playing button in the intelligent interactive tablet, and the inputtable element column includes elements that can be displayed after a certain operation is input by the user. For example, fig. 3 is a content diagram of a courseware editing page, and referring to fig. 3, the editing canvas 30 is specifically used for the current user to perform input editing of elements, and the elements that the current user can input in the courseware editing page are given in the inputtable elements column 31, which includes: text, graphical shapes, multimedia, forms, classroom activities, mind maps, pinyin, chinese characters, and subject tools. The discipline tool can be a function editor, a formula and the like. It is understood that the specific contents of the inputtable element column 31 may be set and changed according to actual situations, and the embodiment is not limited thereto.

Meanwhile, the edit setting option includes an option button for setting an edited element in the user editing process, and referring to fig. 3 as well, the edit setting option 32 includes a button for setting control in a courseware editing page by the current user, and the button includes: setting buttons such as forward undo, backward undo, cutting, attribute and animation, wherein the attribute can be used for performing personalized setting on the display state of the edited element, such as attribute setting on a thinking chart, attribute setting on a text, attribute setting on current edited page layout and the like, and the animation can be used for performing personalized setting on the playing animation track of the edited element, such as setting the animation track of the editable element appearing, disappearing and action track of the displaying action in a demonstration playing scene.

In addition, the display and play specifically may refer to a courseware demonstration performed by using the content in the courseware editing page as a demonstration and play page in the teaching mode, the display and play specifically may be triggered by a demonstration and play button, one of the demonstration and play buttons 33, i.e. a teaching start button, is further shown in fig. 3, and the user may perform demonstration and play on the content in the editing canvas 30 in the demonstration mode after triggering the teaching start button.

In a specific implementation, a user can perform an operation by using a finger or a touch pen in a touch manner, so that the controller receives a blackboard-writing operation. Or, the user can also operate in a keying mode through an external device connected with the main display device, so that the controller receives the blackboard-writing operation. The external device includes, but is not limited to, a mouse, etc.

The present embodiment is preferably described by taking a touch manner as an example, and it can be understood that all board writing operations appearing in the present embodiment can be performed by using a touch manner or a key manner, and are all described by taking a touch manner as an example.

On the one hand, in the main display device, the main display controller shields the touch operation acting on the main display device.

The shielding may mean that the master display controller receives the touch operation but ignores the touch operation, or that the touch operation is transmitted to the controller without being transmitted to the master display controller, which is not limited in this embodiment.

Further, in the main display device, the touch operation may be transmitted through a standard USB protocol, a USB switch is disposed in the main display device, the USB switch is respectively connected to the controller and the main display controller, after the touch operation is generated on the screen of the main display device, the touch operation is sent to the USB switch, the USB switch may distribute the touch operation to the controller and the main display controller, and the main display controller may send an enable signal to the USB switch, so as to control the USB switch to output the touch operation to the controller and/or the main display controller.

It should be noted that the main display controller controls the logic distributed by the touch operation, and after receiving the touch operation, the controller does not determine whether to respond to the touch operation, but directly responds to the touch operation, so that the logical coincidence between the controller and the main display controller is reduced, and the coupling between the controller and the main display controller is reduced.

In this embodiment, the main display controller may send an enable signal to the USB switch to control the USB switch to output the touch operation to the controller, at this time, the main display controller does not receive the touch operation, or simultaneously outputs the touch operation to the controller and the main display controller, and at this time, the main display controller ignores the touch operation.

In this case, the controller receives a touch operation acting on the main display device as a board writing operation, which slides upward from the bottom of the main display device (screen) in one example.

Of course, in addition to the bottom of the autonomous display device (screen) sliding upwards, the embodiment may also set other touch operations as the board writing operation, which is not limited in the embodiment.

On the other hand, in the sub display device, the sub display controller shields the touch operation applied to the sub display device.

The shielding may mean that the secondary display receives the touch operation but ignores the touch operation, or that the touch operation is transmitted to the controller without being transmitted to the secondary display, which is not limited in this embodiment.

Further, in the secondary display device, the touch operation may be transmitted through a standard USB protocol, a USB switch is disposed in the secondary display device, and the USB switch is connected to the data ports of the secondary display device and the secondary display device, respectively, after the touch operation is generated on the screen of the secondary display device, the touch operation is sent to the USB switch, the USB switch may distribute the touch operation to the controller and the secondary display device, respectively, and the USB switch may distribute the touch operation to the secondary display device, or distribute the touch operation to the controller through the data port of the secondary display device, so as to control the USB switch to output the touch operation to the controller and/or the secondary display device.

It should be noted that the sub display controller controls the logic distributed by the touch operation, and after receiving the touch operation, the controller directly responds to the touch operation without determining whether to respond to the touch operation, so that the logical coincidence between the controller and the sub display controller is reduced, and the coupling between the controller and the sub display controller is reduced.

In this embodiment, the secondary display controller may send an enable signal to the USB switch to control the USB switch to output the touch operation to the controller, and at this time, the secondary display controller does not receive the touch operation, or outputs the touch operation to the controller and the secondary display controller at the same time, and at this time, the secondary display controller ignores the touch operation.

In this case, the controller receives a touch operation acting on the sub display device as a board-writing operation, which slides upward from the bottom of the sub display device (screen) in one example.

Of course, in addition to sliding upward from the bottom of the secondary display device (screen), other touch operations may be set as the board writing operation in the present embodiment, which is not limited in the present embodiment.

S203, if the blackboard writing operation acts on the main display device, the controller transmits the second main video signal to the main display controller; the main display controller generates a second sub video signal based on the second main video signal, wherein the second sub video signal is a screen driving signal matched with the main screen; the main display controller transmits the second sub video signal to the signal converter, and the signal converter is used for transmitting the second sub video signal to a main screen for playing;

in this embodiment, the main display device identifies the source of the blackboard-writing operation, and if it is determined that the blackboard-writing operation acts on the main display device, the controller transmits the second main video signal to the main display controller.

In this embodiment, the main display controller can convert the second main video signal into the second sub video signal after receiving the second main video signal, and the second sub video signal is a screen driving signal adapted to the main screen, that is, the main screen can play the second sub video signal.

Of course, in this embodiment, the main screen and the sub-screen may adopt the same specification of driving signals. The main display controller or the auxiliary display controller can convert the input video signal to obtain the driving signal of the same specification and the driving signal suitable for the main screen and the auxiliary screen.

Further, the signal converter belongs to a converter, and can receive a driving signal, and convert the driving signal into a first signal and a second signal for outputting, where the first signal is a video signal, and the second signal is a screen driving signal. That is, after the second sub-video signal is processed by the signal converter, one path of the signal converter may output the original second sub-video signal, and the other path of the signal converter may output the second main video signal restored according to the second sub-video signal.

The second sub video signal output by the signal converter can be directly transmitted to the main screen for playing. Further, the main display controller can put the second main video signal into the frame memory, generate the serial display data and the scanning control timing required by the main screen for the second main video signal in a partition driving manner, i.e., the second sub video signal, and transmit the second sub video signal to the main screen through the signal converter, and the main screen plays according to the second sub video signal (the serial display data and the scanning control timing), so as to display the electronic whiteboard on the main screen.

S204, the controller transmits the first main video signal to the signal switcher; the main display controller transmits an enabling signal to the signal switcher to control the signal switcher to transmit the first main video signal to the auxiliary display controller, and the auxiliary display controller is used for converting the first main video signal into a first sub video signal and transmitting the first sub video signal to the auxiliary screen for playing.

In this embodiment, the controller outputs the first main video signal to the signal switcher, and at the same time, the controller notifies the main display controller of the display setting at this time of "extending the desktops of the main display device and the sub display device", and the main display controller generates an enable signal, such as a second enable signal, in response to the setting, and transmits the second enable signal to the signal switcher.

The signal switcher responds to the second enabling signal and outputs the first main video signal to the auxiliary display controller, the auxiliary display controller is used for converting the first main video signal into a first sub video signal, and the first sub video signal is a screen driving signal adapted to the auxiliary screen, namely, the auxiliary screen can play the first sub video signal.

Furthermore, the main display controller puts the first main video signal into the frame memory through the control of the signal switcher, generates the serial display data and the scanning control time sequence required by the main screen aiming at the first main video signal according to a partition driving mode, namely, a first sub video signal, transmits the first sub video signal to the sub screen through the signal converter, and plays the sub screen according to the first sub video signal (the serial display data and the scanning control time sequence), thereby displaying courseware on the sub screen.

Example two

Fig. 4 is a flowchart of a courseware display method according to a second embodiment of the present invention, and the present embodiment further adds a processing operation of switching between displaying courseware and an electronic whiteboard based on the foregoing embodiment, where the method specifically includes the following steps:

s401, the controller determines courseware and generates a first main video signal according to the courseware;

s402, the controller receives a blackboard writing operation and generates a second main video signal according to the electronic whiteboard;

s403, if the blackboard-writing operation acts on the main display device, the controller transmits the second main video signal to the main display controller; the main display controller generates a second sub video signal based on the second main video signal, wherein the second sub video signal is a screen driving signal matched with the main screen; the main display controller transmits the second sub video signal to the signal converter, and the signal converter is used for transmitting the second sub video signal to a main screen for playing;

s404, the controller transmits the first main video signal to the signal switcher; the main display controller transmits an enabling signal to the signal switcher so as to control the signal switcher to transmit the first main video signal to the auxiliary display controller, and the auxiliary display controller is used for converting the first main video signal into a first sub video signal and transmitting the first sub video signal to the auxiliary screen for playing.

S405, the controller receives a first switching operation.

In specific implementation, a user can operate by using a finger or a touch pen in a touch manner according to the demonstration conditions of the actual courseware and the electronic whiteboard, so that the controller receives the first switching operation. Or, the user may also perform an operation in a key manner through an external device connected to the main display device, so that the controller receives the first switching operation. The external device includes, but is not limited to, a mouse, etc.

The first switching operation is used for switching and displaying courseware and an electronic whiteboard.

The present embodiment is preferably described by taking a touch manner as an example, and it can be understood that all the first switching operations in the present embodiment can be performed by adopting a touch manner or a key manner, and are described by taking a touch manner as an example.

The controller may receive a touch operation on the primary display device as a first switching operation, which in one example is a multi-touch operation and slides to the secondary display device, such as a user's 5 fingers pressing on a screen of the primary display device and sliding to the secondary display device.

The controller may also receive a touch operation on the secondary display device as a first switching operation, which in one example is a multi-touch operation and slides to the primary display device, such as a user's 5 fingers pressing on a screen of the secondary display device and sliding to the primary display device.

Of course, in addition to triggering the multi-touch operation on the primary display device and sliding to the secondary display device, or triggering the multi-touch operation on the secondary display device and sliding to the primary display device, other touch operations may be set as the first switching operation in this embodiment, which is not limited in this embodiment.

S406, the controller transmits the first main video signal to the main display controller according to the first switching operation; the main display controller generates a first sub video signal based on the first main video signal, wherein the first sub video signal is a screen driving signal matched with the main screen; the main display controller transmits the first sub video signal to the signal converter, and the signal converter is used for transmitting the first sub video signal to the main screen for playing.

S407, the controller transmits the second main video signal to the signal switch according to the first switching operation; the main display controller transmits an enabling signal to the signal switcher to control the signal switcher to transmit the second main video signal to the auxiliary display controller, and the auxiliary display controller is used for converting the second main video signal into a second sub video signal and transmitting the second sub video signal to the auxiliary screen for playing.

In this embodiment, since the first main video signal is played by the first auxiliary display device and the second main video signal is played by the main display device, the first main video signal is used for displaying courseware and the second main video signal is used for displaying the electronic whiteboard, that is, the auxiliary display device displays courseware and the main display device displays the electronic whiteboard, the controller responds to the first switching operation, and on the one hand, transmits the first main video signal to the main display controller; the main display controller generates a first sub video signal based on the first main video signal, wherein the first sub video signal is a screen driving signal matched with the main screen; the main display controller transmits the first sub video signal to the signal converter, the signal converter is used for transmitting the first sub video signal to a main screen for playing, so that the main display device switches from displaying an electronic whiteboard to displaying courseware, and on the other hand, transmits the second main video signal to the signal switcher; the main display controller transmits an enabling signal to the signal switcher to control the signal switcher to transmit the second main video signal to the auxiliary display controller, the auxiliary display controller is used for converting the second main video signal into a second sub video signal, and the second sub video signal is transmitted to the auxiliary screen to be played, so that the auxiliary display equipment is switched to the display electronic whiteboard from the display courseware.

In this embodiment, the controller transmits the first main video signal to the main display controller when receiving a first switching operation; the main display controller generates a first sub video signal based on the first main video signal, wherein the first sub video signal is a screen driving signal matched with the main screen; the main display controller transmits the first sub video signal to the signal converter, the signal converter is used for transmitting the first sub video signal to a main screen for playing, and transmits the second main video signal to the signal switcher; the main display controller transmits an enabling signal to the signal switcher to control the signal switcher to transmit the second main video signal to the auxiliary display controller, the auxiliary display controller is used for converting the second main video signal into a second sub video signal, the second sub video signal is transmitted to the auxiliary screen to be played, and the controller can realize the switching of courseware and the electronic whiteboard through the switching of the first main video signal and the second main video signal, so that the operation is simple and convenient.

EXAMPLE III

Fig. 5 is a flowchart of a courseware display method according to a third embodiment of the present invention, and based on the foregoing embodiment, the present embodiment further adds processing operations of a controller controlling a main display controller to display courseware and a sub display controller to display an electronic whiteboard, where the method specifically includes the following steps:

s501, the controller determines courseware and generates a first main video signal according to the courseware.

And S502, the controller receives the blackboard-writing operation and generates a second main video signal according to the electronic whiteboard.

S503, if the blackboard writing operation acts on the auxiliary display equipment, the controller transmits the first main video signal to the main display controller; the main display controller generates a first sub video signal based on the first main video signal, wherein the first sub video signal is a screen driving signal matched with the main screen; the main display controller transmits the first sub video signal to the signal converter, and the signal converter is used for transmitting the first sub video signal to the main screen for playing.

In this embodiment, the primary display device identifies the source of the blackboard-writing operation, and if it is determined that the blackboard-writing operation acts on the secondary display device, the controller transmits the first primary video signal to the primary display controller.

In this embodiment, the main display controller can convert the first main video signal into the first sub video signal after receiving the first main video signal, and the first sub video signal is a screen driving signal adapted to the main screen, that is, the main screen can play the first sub video signal.

Of course, in this embodiment, the driving signals of the same specification may be used for the main screen and the sub-screen. The main display controller or the auxiliary display controller can convert the input video signal to obtain the driving signal of the same specification and the driving signal suitable for the main screen and the auxiliary screen.

Further, the signal converter belongs to a converter, and can receive a driving signal, and convert the driving signal into a first signal and a second signal for outputting, where the first signal is a video signal, and the second signal is a screen driving signal. That is, after the first sub-video signal is processed by the signal converter, the signal converter may output the original first sub-video signal in one path, and output the first main video signal restored according to the first sub-video signal in the other path.

The first video signal output by the signal converter can be directly transmitted to the main screen for playing. Further, the main display controller can put the first main video signal into the frame memory, generate the serial display data and the scanning control time sequence required by the main screen for the first main video signal in a partition driving manner, namely, the first sub video signal, and transmit the first sub video signal to the main screen through the signal converter, and the main screen plays the courseware in the main screen according to the first sub video signal (the serial display data and the scanning control time sequence), so that the courseware is displayed on the main screen.

S504, the controller transmits the second main video signal to the signal switcher; the main display controller transmits an enabling signal to the signal switcher to control the signal switcher to transmit the second main video signal to the auxiliary display controller, and the auxiliary display controller is used for converting the second main video signal into a second sub video signal and transmitting the second sub video signal to the auxiliary screen for playing.

In this embodiment, the controller outputs the second main video signal to the signal switcher, and at the same time, the controller notifies the main display controller of the display setting at this time "extending the desktops of the main display device and the sub display device", and the main display controller generates an enable signal, such as a second enable signal, in response to the setting, and transmits the second enable signal to the signal switcher.

The signal switcher responds to the second enabling signal and outputs the second main video signal to the auxiliary display controller, the auxiliary display controller is used for converting the second main video signal into a second sub video signal, and the second sub video signal is a screen driving signal adaptive to the auxiliary screen, namely, the auxiliary screen can play the second sub video signal.

Furthermore, the main display controller puts the second main video signal into the frame memory through the control of the signal switcher, generates the serial display data and the scanning control time sequence required by the main screen aiming at the second main video signal according to the partition driving mode, namely, the second sub video signal, transmits the second sub video signal to the auxiliary screen through the signal converter, and plays the main screen according to the second sub video signal (the serial display data and the scanning control time sequence), thereby displaying the electronic whiteboard on the auxiliary screen.

In this embodiment, on one hand, the first main video signal is transmitted to the main display controller; the main display controller generates a first sub video signal based on the first main video signal, wherein the first sub video signal is a screen driving signal matched with the main screen; the main display controller transmits the first sub video signal to the signal converter, the signal converter is used for transmitting the first sub video signal to a main screen for playing, and on the other hand, the controller transmits the second main video signal to the signal switcher; the main display controller transmits enabling signals to the signal switcher to control the signal switcher to transmit second main video signals to the auxiliary display controller, the auxiliary display controller is used for converting the second main video signals into second sub video signals, the second sub video signals are transmitted to the auxiliary screen to be played, courseware and electronic whiteboard are managed by the displayer in a unified mode, a user does not need to operate the courseware and the electronic whiteboard through different machines, and the courseware and the electronic whiteboard can be operated through the main display equipment located at the current time, so that the simplicity of operation is greatly improved.

Example four

Fig. 6 is a flowchart of a courseware display method according to a fourth embodiment of the present invention, and the present embodiment further adds a processing operation of switching between displaying courseware and an electronic whiteboard based on the foregoing embodiment, where the method specifically includes the following steps:

s601, the controller determines courseware and generates a first main video signal according to the courseware.

And S602, the controller receives a blackboard writing operation and generates a second main video signal according to the electronic whiteboard.

S603, if the blackboard writing operation acts on the auxiliary display equipment, the controller transmits the first main video signal to the main display controller; the main display controller generates a first sub video signal based on the first main video signal, wherein the first sub video signal is a screen driving signal matched with the main screen; the main display controller transmits the first sub video signal to the signal converter, and the signal converter is used for transmitting the first sub video signal to a main screen for playing.

S604, the controller transmits the second main video signal to the signal switcher; the main display controller transmits an enabling signal to the signal switcher to control the signal switcher to transmit the second main video signal to the auxiliary display controller, and the auxiliary display controller is used for converting the second main video signal into a second sub video signal and transmitting the second sub video signal to the auxiliary screen for playing.

S605, the controller receives a second switching operation.

In specific implementation, a user can operate with a finger or a touch pen in a touch manner according to the actual courseware and the demonstration condition of the electronic whiteboard, so that the controller receives the second switching operation. Or, the user may also perform an operation in a key manner through an external device connected to the main display device, so that the controller receives the second switching operation. The external device includes, but is not limited to, a mouse, etc.

The first person switching operation is used for switching and displaying courseware and the electronic whiteboard.

The present embodiment is preferably described by taking a touch manner as an example, and it can be understood that all the second switching operations in the present embodiment can be performed by using a touch manner or a key manner, and are described by taking a touch manner as an example.

The controller may receive a touch operation acting on the primary display device as a second switching operation, which in one example is a multi-touch operation and slides to the secondary display device, such as a user's 5 fingers pressing on a screen of the primary display device and sliding to the secondary display device.

The controller may also receive a touch operation on the secondary display device as a second switching operation, in one example the first switching operation is a multi-touch operation and slides to the primary display device, e.g., a user's 5 fingers press on a screen of the secondary display device and slide to the primary display device.

Of course, in addition to triggering the multi-touch operation on the primary display device and sliding to the secondary display device, or triggering the multi-touch operation on the secondary display device and sliding to the primary display device, other touch operations may be set as the second switching operation in this embodiment, which is not limited in this embodiment.

S606, the controller transmits the second main video signal to the main display controller according to the second switching operation; the main display controller generates a second sub video signal based on the second main video signal, wherein the second sub video signal is a screen driving signal matched with the main screen; the main display controller transmits the second sub video signal to the signal converter, and the signal converter is used for transmitting the second sub video signal to the main screen for playing.

S607, the controller transmits the first main video signal to the signal switcher according to the second switching operation; the main display controller transmits an enabling signal to the signal switcher to control the signal switcher to transmit the first main video signal to the auxiliary display controller, and the auxiliary display controller is used for converting the first main video signal into a first sub video signal and transmitting the first sub video signal to the auxiliary screen for playing.

In this embodiment, since the first and second main video signals are played by the first and second display devices, the first and second main video signals are used for displaying courseware and electronic whiteboard, that is, the main display device displays courseware and the second display device displays electronic whiteboard, and the controller responds to the second switching operation, on one hand, the second main video signal is transmitted to the main display controller; the main display controller generates a second sub video signal based on the second main video signal, wherein the second sub video signal is a screen driving signal matched with the main screen; the main display controller transmits the second sub video signal to the signal converter, the signal converter is used for transmitting the second sub video signal to a main screen for playing, so that the main display device switches from displaying courseware to displaying an electronic whiteboard, and on the other hand, transmits the first main video signal to the signal switcher; the main display controller transmits an enabling signal to the signal switcher to control the signal switcher to transmit the first main video signal to the auxiliary display controller, the auxiliary display controller is used for converting the first main video signal into a first sub video signal, and transmitting the first sub video signal to the auxiliary screen for playing, so that the auxiliary display equipment is switched to display courseware from the display electronic whiteboard.

In this embodiment, when receiving a second switching operation, the controller transmits the second main video signal to the main display controller; the main display controller generates a second sub video signal based on the second main video signal, wherein the second sub video signal is a screen driving signal matched with the main screen; the main display controller transmits the second sub video signal to the signal converter, the signal converter is used for transmitting the second sub video signal to a main screen for playing, and transmits the first main video signal to the signal switcher; the main display controller transmits an enabling signal to the signal switcher to control the signal switcher to transmit the first main video signal to the auxiliary display controller, the auxiliary display controller is used for converting the first main video signal into a first sub video signal, the first sub video signal is transmitted to the auxiliary screen to be played, and the controller can realize the switching of courseware and the electronic whiteboard through the switching of the first main video signal and the second main video signal, so that the operation is simple and convenient.

EXAMPLE five

Fig. 7 is a flowchart of a courseware display method according to a fifth embodiment of the present invention, and the present embodiment further increases touch operations of a main display device based on the foregoing embodiment, where the method specifically includes the following steps:

s701, the controller receives touch operation acting on the main display device.

The user can trigger touch operation on the screen of the main display device by using a finger or a touch pen according to the demonstration condition of the actual courseware or the electronic whiteboard, and the touch operation is transmitted to the controller.

And S702, if the primary display equipment displays a first primary video signal, the controller operates the courseware according to the touch operation.

And S703, if the main display device displays a second main video signal, the controller operates the electronic whiteboard according to the touch operation.

If the main display device originally displays the second main video signal or displays the first main video signal after switching, namely the main display device displays courseware, the controller responds to touch operation on the main display device to operate the courseware.

If the main display device originally displays the first main video signal or displays the second main video signal after switching, namely the main display device displays the electronic whiteboard, the controller responds to touch operation on the main display device to operate the electronic whiteboard.

In particular implementations, courseware includes pages, each having elements, such as text, pictures, video, and so forth, therein.

The touch operation can be used to operate on a page, such as adding a new page, deleting an original page, turning a page (including turning a previous page, turning a next page), and the like.

The touch operation may also be used to operate on elements in the page, such as adding a new element, deleting an original element, modifying an original element (e.g., dragging, rotating, zooming, changing a property (e.g., a color, a font type), and the like.

In one case, the touch operation may refer to data of touch points, which includes one or more of the number of touch points, states of the touch points, coordinates of the touch points, and pressure values of the touch points.

Wherein the coordinates of the touch point include a horizontal axis coordinate x and a vertical axis coordinate y.

If the screen of the main display device and the screen of the auxiliary display device have a difference in resolution, the coordinates of the touch point on the screen of the main display device can be mapped to a unified screen to unify the coordinates, so that courseware or an electronic whiteboard can be conveniently operated, that is, linear scaling and offset are performed according to the size of the touch point on the screen of the main display device, so as to realize matching of the touch position and the display position.

For example, the resolution of the screen of the main display device is 1000 × 500, the resolution of the unified screen is 500 × 500, when the screen of the main display device displays a courseware, the display area of the main display device is 500 × 500 in the middle of the screen, two black edges of 250 × 500 appear on two sides of the screen, the vertex at the upper left corner of the touch display end is used as the origin of coordinates, and if the current touch point is at the touch display end coordinates (250,0), the actual click position corresponds to the point (0,0) of the unified screen.

If the screen of the main display device is identical to the screen of the sub display device in resolution, the coordinates of the touch point may be directly used.

In another case, the touch operation may refer to a touch event, also called a touch gesture, a slide gesture, and the like, such as a double click, a leftward slide, a rightward slide, and the like.

In this case, the main display device may encapsulate data of the touch point as a touch event to map to a function commonly used for courseware, such as mapping a leftward sliding to a page turning on the previous page, mapping a rightward sliding to a page turning on the next page, and the like, thereby reducing an amount of computation of the data of the touch point by the controller.

Further, the main display device converts the data of the touch point into a touch event, the touch event can be packaged by adopting a keyboard protocol and then sent to the controller, the key event is directly sent to the controller in a USB HID keyboard mode, and the controller directly executes the operation corresponding to the key event.

And after the controller operates the courseware or the electronic whiteboard, the first main video signal or the second main video signal is correspondingly updated, and the operation acting on the main display equipment is displayed on the main display equipment.

In this embodiment, the controller receives a touch operation applied to the main display device, and operates the courseware or the electronic whiteboard according to the touch operation, so that the independence of the operation of the main display device can be ensured, and the practicability is high.

EXAMPLE six

Fig. 8 is a flowchart of a courseware display method according to a sixth embodiment of the present invention, where the present embodiment further adds a touch operation to a secondary display device based on the foregoing embodiment, and the method specifically includes the following steps:

s801, the controller receives touch operation acting on the auxiliary display equipment.

The user can trigger touch operation on the screen of the secondary display device by using a finger or a touch pen according to the demonstration situation of the actual courseware or the electronic whiteboard, and the touch operation is transmitted to the controller through the data port of the secondary display device.

S802, if the auxiliary display equipment displays the first main video signal, the controller operates the courseware according to the touch operation.

And S803, if the secondary display device displays a second primary video signal, the controller operates the electronic whiteboard according to the touch operation.

And if the auxiliary display equipment originally displays the second main video signal or displays the first main video signal after switching, namely the auxiliary display equipment displays the courseware, the controller responds to touch operation on the auxiliary display equipment to operate the courseware.

If the auxiliary display device originally displays the first main video signal or displays the second main video signal after switching, namely the auxiliary display device displays the electronic whiteboard, the controller responds to touch operation on the auxiliary display device to operate the electronic whiteboard.

Further, the touch operation may refer to data of touch points, which includes one or more of the number of touch points, the state of the touch points, coordinates of the touch points, and pressure values of the touch points.

If the resolution of the screen of the main display device is different from that of the screen of the auxiliary display device, the coordinates of the touch point on the screen of the auxiliary display device can be mapped to the unified screen to unify the coordinates, so that courseware operation is facilitated, namely linear scaling and offset are performed according to the size of the touch point on the auxiliary display device, and matching of the touch position and the display position is realized.

For example, the resolution of the screen of the secondary display device is 1000 × 500, the resolution of the unified screen is 500 × 500, when the screen of the secondary display device displays a courseware, the display area of the secondary display device is 500 × 500 in the middle of the screen, two black edges of 250 × 500 appear on two sides of the screen, the vertex at the upper left corner of the touch display end is used as the origin of coordinates, and if the current touch point is (250,0) in the touch display end, the actual click position corresponds to (0,0) of the unified screen.

And after the controller operates the courseware or the electronic whiteboard, the first main video signal or the second main video signal is correspondingly updated, and the operation acted on the auxiliary display equipment is displayed in the auxiliary display equipment.

In this embodiment, the controller receives a touch operation applied to the secondary display device, and operates the courseware or the electronic whiteboard according to the touch operation, so that the independence of the operation of the secondary display device can be ensured, and the practicability is high.

EXAMPLE seven

Fig. 9 is a schematic structural diagram of a main display device according to a seventh embodiment of the present invention, the main display device is connected to a secondary display device, and a controller 901, a main display controller 902, a signal switcher 904, a signal converter 903, and a main screen 905 are disposed in the main display device; a secondary display controller and a secondary screen are disposed in the secondary display device, wherein the controller 901 is configured to:

if the blackboard-writing operation acts on the primary display device, transmitting the second primary video signal to the primary display controller 902;

the main display controller 902 is configured to:

generating a second sub video signal based on the second main video signal, the second sub video signal being a screen driving signal adapted to the main screen 905; transmitting the second video signal to the signal converter 903, wherein the signal converter 903 is used for transmitting the second video signal to a main screen 905 for playing;

the controller 901 is further configured to transmit the first main video signal to the signal switch 904; transmitting an enable signal to the signal switch 904 to control the signal switch 904 to transmit the first main video signal to the sub display controller, where the sub display controller is configured to convert the first main video signal into a first sub video signal, and transmit the first sub video signal to the sub screen for playing.

In one embodiment of the present invention, the master display 902 is configured to:

shielding touch operation acting on the main display equipment;

and the auxiliary display controller shields the touch operation acting on the auxiliary display equipment.

In one embodiment of the present invention, the controller 901 is configured to:

receiving touch operation acting on the main display device as board writing operation, wherein the touch operation slides upwards from the bottom of the main display device;

or,

the controller 901 is configured to:

receiving a touch operation acting on the auxiliary display device as a board book operation, wherein the touch operation slides upwards from the bottom of the auxiliary display device.

receiving a first switching operation;

transmitting the first main video signal to the main display controller 902 according to the first switching operation;

the main display controller 902 is configured to generate a first sub video signal based on the first main video signal, where the first sub video signal is a screen driving signal adapted to the main screen 905; transmitting the first component video signal to the signal converter 903, wherein the signal converter 903 is used for transmitting the first component video signal to a main screen 905 for playing;

the controller 901 is further configured to transmit the second main video signal to the signal switch 904 according to the first switching operation;

the main display controller 902 is further configured to transmit an enable signal to the signal switch 904, so as to control the signal switch 904 to transmit the second main video signal to the auxiliary display controller, the auxiliary display controller is configured to convert the second main video signal into a second sub video signal, and transmit the second sub video signal to the auxiliary screen for playing.

In an embodiment of the present invention, if the blackboard-writing operation is applied to the secondary display device, the controller 901 is configured to:

transmitting the first main video signal to the main display controller 902;

the main display controller 902 is configured to:

generating a first sub video signal based on the first main video signal, the first sub video signal being a screen driving signal adapted to the main screen 905; transmitting the first component video signal to the signal converter 903, wherein the signal converter 903 is used for transmitting the first component video signal to a main screen 905 for playing;

the controller 901 is configured to:

transmitting the second main video signal to the signal switcher 904;

the main display controller 902 is configured to:

transmitting an enable signal to the signal switcher 904 to control the signal switcher 904 to transmit the second main video signal to the auxiliary display controller, wherein the auxiliary display controller is used for converting the second main video signal into a second sub video signal and transmitting the second sub video signal to the auxiliary screen for playing.

receiving a second switching operation;

transmitting the second main video signal to the main display controller 902 according to the second switching operation;

the main display controller 902 is configured to:

the controller 901 is configured to:

transmitting the first main video signal to the signal switcher 904 according to the second switching operation;

the main display controller 902 is configured to:

transmitting an enable signal to the signal switch 904 to control the signal switch 904 to transmit the first main video signal to the sub display controller, where the sub display controller is configured to convert the first main video signal into a first sub video signal, and transmit the first sub video signal to the sub screen for playing.

receiving touch operation acting on the main display equipment;

if the main display equipment displays a first main video signal, operating the courseware according to the touch operation;

and if the main display equipment displays a second main video signal, operating the electronic whiteboard according to the touch operation.

receiving touch operation acting on the auxiliary display equipment;

if the auxiliary display equipment displays a first main video signal, operating the courseware according to the touch operation;

and if the auxiliary display equipment displays a second main video signal, operating the electronic whiteboard according to the touch operation.

The main display device provided by the embodiment of the invention can execute the courseware display method provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method.

Example eight

Fig. 10 is a schematic structural diagram of a courseware display system according to an eighth embodiment of the present invention, the system includes a main display device 1010 and a sub display device 1020 connected together, the main display device 1010 is provided with a controller 1011, a main display controller 1012, a signal switch 1014, a signal converter 1013, and a main screen 1015; a secondary display controller 1021 and a secondary screen 1022 are provided in the secondary display apparatus 1020;

wherein the controller 1011 is configured to:

transmitting the second main video signal to the main display controller 1012 if the blackboard-writing operation is applied to the main display device 1010;

the main display controller 1012 is configured to:

generating a second sub video signal based on the second main video signal, the second sub video signal being a screen driving signal adapted to the main screen 1015; transmitting the second video signal to the signal converter 1013, wherein the signal converter 1013 is configured to transmit the second video signal to the main screen 1015 for playing;

the controller 1011 is further configured to transmit the first main video signal to the signal switch 1014; transmitting an enable signal to the signal switch 1014 to control the signal switch 1014 to transmit the first main video signal to the sub display 1021;

the secondary display controller 1021 is configured to convert the first main video signal into a first sub video signal, and transmit the first sub video signal to the secondary screen 1022 for playing.

In one embodiment of the present invention, the primary display 1012 shields touch operations on the primary display device 1010;

the sub display controller 1021 shields the touch operation applied to the sub display device 1020.

In one embodiment of the present invention, the controller 1011 receives a touch operation acting on the main display device 1010 as a board-book operation, wherein the touch operation slides upward from the bottom of the main display device 1010;

or,

the controller 1011 receives a touch operation acting on the sub display device 1020 as a board writing operation, wherein the touch operation slides upward from the bottom of the sub display device 1020.

In one embodiment of the present invention, the controller 1011 receives a first switching operation;

the controller 1011 transmits the first main video signal to the main display controller 1012 according to the first switching operation;

the main display controller 1012 is configured to generate a first sub video signal based on the first main video signal, where the first sub video signal is a screen driving signal adapted to the main screen 1015; the first partial video signal is transmitted to the signal converter 1013, and the signal converter 1013 is configured to transmit the first partial video signal to the main screen 1015 for playing.

The controller 1011 is further configured to transmit the second main video signal to the signal switch 1014 according to the first switching operation;

the master display 1012 is further configured to transmit an enable signal to the signal switch 1014, so as to control the signal switch 1014 to transmit the second master video signal to the slave display 1021;

the secondary display controller 1021 is configured to convert the second main video signal into a second sub video signal, and transmit the second sub video signal to the secondary screen 1022 for playing.

In an embodiment of the present invention, the controller 1011 is further configured to transmit the first main video signal to the main display controller 1012 if the blackboard-writing operation is performed on the secondary display device 1020;

the main display controller 1012 is further configured to generate a first sub video signal based on the first main video signal, where the first sub video signal is a screen driving signal adapted to the main screen 1015; transmitting the first partial video signal to the signal converter 1013, wherein the signal converter 1013 is configured to transmit the first partial video signal to the main screen 1015 for playing;

the controller 1011 for transmitting the second main video signal to the signal switch 1014;

the master display 1012 is further configured to transmit an enable signal to the signal switch 1014 to control the signal switch 1014 to transmit the second master video signal to the slave display 1021;

In one embodiment of the present invention, the controller 1011 is configured to:

receiving a second switching operation;

transmitting the second main video signal to the main display controller 1012 according to the second switching operation;

the main display controller 1012 is configured to generate a second sub video signal based on the second main video signal, where the second sub video signal is a screen driving signal adapted to the main screen 1015; transmitting the second video signal to the signal converter 1013, wherein the signal converter 1013 is configured to transmit the second video signal to the main screen 1015 for playing;

the controller 1011 is further configured to transmit the first main video signal to the signal switch 1014 according to the second switching operation;

the master display 1012 is further configured to transmit an enable signal to the signal switch 1014 to control the signal switch 1014 to transmit the first master video signal to the slave display 1021;

In an embodiment of the present invention, the controller 1011 is configured to:

receiving a touch operation applied to the primary display device 1010;

if the primary display device 1010 displays a first primary video signal, the controller 1011 operates the courseware according to the touch operation;

if the primary display device 1010 displays a second primary video signal, the controller 1011 operates the electronic whiteboard according to the touch operation.

In an embodiment of the present invention, the controller 1011 is configured to receive a touch operation applied to the secondary display device 1020;

if the auxiliary display device 1020 displays the first main video signal, the controller 1011 operates the courseware according to the touch operation;

if the secondary display device 1020 displays the second primary video signal, the controller 1011 operates the electronic whiteboard according to the touch operation.

The courseware display system provided by the embodiment of the invention can execute the courseware display method provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method.

Example nine

Fig. 11 is a schematic structural diagram of a computer device according to a ninth embodiment of the present invention. As shown in fig. 11, the computer apparatus includes a processor 1100, a memory 1101, a communication module 1102, an input device 1103, and an output device 1104; the number of the processors 1100 in the computer device may be one or more, and one processor 1100 is taken as an example in fig. 11; the processor 1100, the memory 1101, the communication module 1102, the input device 1103 and the output device 1104 in the computer apparatus may be connected by a bus or other means, and are exemplified by being connected by a bus in fig. 11.

The memory 1101, which is a computer-readable storage medium, may be used for storing software programs, computer-executable programs, and modules, such as modules corresponding to the display method of courseware in the present embodiment (for example, a controller 901 and a main display 902 in a main display device as shown in fig. 9, or a controller 1011, a main display 1012, and a sub display 1021 in a display system of courseware as shown in fig. 10). The processor 1100 executes various functional applications and data processing of the computer device, i.e., realizes the above-described courseware display method, by running software programs, instructions, and modules stored in the memory 1101.

The memory 1101 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to use of the computer device, and the like. Further, the memory 1101 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory 1101 may further include memory located remotely from the processor 1100, which may be connected to a computer device through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

And the communication module 1102 is configured to establish connection with the display screen and implement data interaction with the display screen. The input device 1103 may be used to receive input numeric or character information and generate key signal inputs relating to user settings and function controls of the computer apparatus.

The computer device provided by the embodiment of the invention can execute the courseware display method provided by any embodiment of the invention, and has corresponding functions and beneficial effects.

Example ten

An embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements a method for displaying courseware, a main display device is connected to a secondary display device, the main display device is provided with a controller, a main display controller and a signal switch, the secondary display device is provided with a secondary display controller, and the method includes:

From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly can be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.

It should be noted that, in the embodiment of the display system of the main display device and the courseware, the included units and modules are only divided according to the functional logic, but are not limited to the above division, as long as the corresponding functions can be realized; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the particular embodiments described herein, and that various obvious changes, rearrangements and substitutions will now be apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A courseware display method is characterized in that a main display device is connected with an auxiliary display device, and a controller, a main display controller, a signal switcher, a signal converter and a main screen are arranged in the main display device; the auxiliary display device is provided with an auxiliary display controller and an auxiliary screen; the method comprises the following steps:

2. The method of claim 1,

the main display controller shields touch operation acting on the main display equipment;

3. The method of claim 1, wherein the controller receives a blackboard-writing operation comprising:

the controller receives touch operation acting on the main display device as board writing operation, wherein the touch operation slides upwards from the bottom of the main display device;

or,

the controller receives a touch operation applied to the sub display device as a board-writing operation, wherein the touch operation slides upward from a bottom of the sub display device.

4. The method of claim 1, further comprising:

the controller receives a first switching operation;

the controller transmits the first main video signal to the main display controller according to the first switching operation; the main display controller generates a first sub video signal based on the first main video signal, wherein the first sub video signal is a screen driving signal matched with the main screen; the main display controller transmits the first sub video signal to the signal converter, and the signal converter is used for transmitting the first sub video signal to a main screen for playing;

the controller transmits the second main video signal to the signal switcher according to the first switching operation; the main display controller transmits an enabling signal to the signal switcher to control the signal switcher to transmit the second main video signal to the auxiliary display controller, and the auxiliary display controller is used for converting the second main video signal into a second sub video signal and transmitting the second sub video signal to the auxiliary screen for playing.

5. The method of claim 1, further comprising:

if the blackboard writing operation acts on the auxiliary display equipment, the controller transmits the first main video signal to the main display controller; the main display controller generates a first sub video signal based on the first main video signal, wherein the first sub video signal is a screen driving signal matched with the main screen; the main display controller transmits the first sub video signal to the signal converter, and the signal converter is used for transmitting the first sub video signal to a main screen for playing;

the controller transmits the second main video signal to the signal switcher; the main display controller transmits an enabling signal to the signal switcher to control the signal switcher to transmit the second main video signal to the auxiliary display controller, and the auxiliary display controller is used for converting the second main video signal into a second sub video signal and transmitting the second sub video signal to the auxiliary screen for playing.

6. The method of claim 5, further comprising:

the controller receives a second switching operation;

the controller transmits the second main video signal to the main display controller according to the second switching operation; the main display controller generates a second sub video signal based on the second main video signal, wherein the second sub video signal is a screen driving signal matched with the main screen; the main display controller transmits the second sub video signal to the signal converter, and the signal converter is used for transmitting the second sub video signal to a main screen for playing;

the controller transmits the first main video signal to the signal switcher according to the second switching operation; the main display controller transmits an enabling signal to the signal switcher so as to control the signal switcher to transmit the first main video signal to the auxiliary display controller, and the auxiliary display controller is used for converting the first main video signal into a first sub video signal and transmitting the first sub video signal to the auxiliary screen for playing.

7. The method of any of claims 1-6, further comprising:

the controller receives touch operation acting on the main display device;

if the main display equipment displays a first main video signal, the controller operates the courseware according to the touch operation;

and if the main display equipment displays a second main video signal, the controller operates the electronic whiteboard according to the touch operation.

8. The method of any of claims 1-6, further comprising:

the controller receives touch operation acting on the auxiliary display equipment;

if the auxiliary display equipment displays a first main video signal, the controller operates the courseware according to the touch operation;

and if the auxiliary display equipment displays a second main video signal, the controller operates the electronic whiteboard according to the touch operation.

9. A main display device is characterized in that the main display device is connected with a secondary display device, and a controller, a main display controller, a signal switcher, a signal converter and a main screen are arranged in the main display device; the auxiliary display equipment is provided with an auxiliary display controller and an auxiliary screen, wherein the controller is used for:

the main display controller is used for:

the controller is further configured to transmit the first main video signal to the signal switcher; and transmitting an enabling signal to the signal switcher to control the signal switcher to transmit the first main video signal to the auxiliary display controller, wherein the auxiliary display controller is used for converting the first main video signal into a first sub video signal and transmitting the first sub video signal to the auxiliary screen for playing.

10. The courseware display system is characterized by comprising a main display device and an auxiliary display device which are connected, wherein the main display device is internally provided with a controller, a main display controller, a signal switcher, a signal converter and a main screen; the auxiliary display device is provided with an auxiliary display controller and an auxiliary screen;

wherein the controller is to:

the main display controller is used for:

11. A computer device, characterized in that the computer device comprises:

one or more processors;

a memory for storing one or more programs;

when executed by the one or more processors, cause the one or more processors to implement a method of displaying courseware as claimed in any one of claims 1 to 8.

12. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out a method of displaying a courseware according to any one of claims 1-8.