CN112584065B

CN112584065B - Courseware display method, system, equipment and storage medium

Info

Publication number: CN112584065B
Application number: CN201910941682.9A
Authority: CN
Inventors: 陈俊伟; 周桂安
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: 2023-10-20
Anticipated expiration: 2039-09-30
Also published as: CN112584065A

Abstract

The embodiment of the invention discloses a courseware display method, a system, equipment and a storage medium, wherein the method comprises the following steps: the main display controller receives an external video signal transmitted by the electronic equipment, and the external video signal is used for displaying courseware; the main display controller generates a first sub video signal based on the external video signal; the main display controller transmits the first sub video signal to the signal converter; the first video signal is also used for converting the first video signal into an external video signal; the main display controller transmits a first enabling signal to the signal switcher so as to control the signal switcher to transmit an external video signal to the auxiliary display controller, and the auxiliary display controller is used for converting the external video signal into a first sub video signal and transmitting the first sub video signal to the auxiliary screen for playing. The main display controller coordinates the main display device and the auxiliary display device to play the sub-video signals uniformly, and the sub-video signals are connected to one electronic device, so that two machines are not required to be connected to different electronic devices independently, and the operation simplicity is greatly improved.

Description

Courseware display method, system, equipment and storage medium

Technical Field

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

Background

In some classrooms, a machine is used as a multimedia device in combination 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 the display area.

The two machines are only spliced together physically, the two machines still work independently and display courseware independently, when other courseware is externally connected, the two machines are required to be connected into different electronic equipment independently, the courseware is provided by the electronic equipment, and the operation is complex.

Disclosure of Invention

The embodiment of the invention provides a courseware display method, a system, equipment and a storage medium, which are used for solving the problem of complicated operation of displaying courseware by respectively and independently connecting two machines into different electronic equipment.

In a first aspect, an embodiment of the present invention provides a method for displaying courseware, where a main display device is connected to a secondary display device and an electronic device, where a controller, a main display controller, a signal switcher, a signal converter, and a main screen are disposed in the main display device; a secondary display controller and a secondary screen are arranged in the secondary display device; the method comprises the following steps:

The main display controller receives an external video signal transmitted by the electronic equipment, and the external video signal is used for displaying courseware;

the main display controller generates a first sub video signal based on the external 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 signal switcher is also used for converting the first sub video signal into the external video signal and transmitting the external video signal to the signal switcher;

the main display controller transmits a first enabling signal to the signal switcher so as to control the signal switcher to transmit the external video signal to the auxiliary display controller, and the auxiliary display controller is used for converting the external 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, the embodiment of the invention further provides a main display device, wherein the main display device is respectively connected with a pair of display devices and an electronic 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; a secondary display controller and a secondary screen are arranged in the secondary display device; wherein, the main display controller is used for:

Receiving an external video signal transmitted by the electronic equipment, wherein the external video signal is used for displaying courseware;

generating a first sub video signal based on the external video signal, wherein the first sub video signal is a screen driving signal adapted to the main screen;

transmitting the first sub video signal to the signal converter, wherein the signal converter is used for transmitting the first sub video signal to a main screen for playing; the signal switcher is also used for converting the first sub video signal into the external video signal and transmitting the external video signal to the signal switcher;

and transmitting a first enabling signal to the signal switcher so as to control the signal switcher to transmit the external video signal to the auxiliary display controller, wherein the auxiliary display controller is used for converting the external 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 display system for courseware, where the system includes a main display device and a secondary display device connected to each other, where a controller, a main display controller, a signal switcher, a signal converter, and a main screen are disposed in the main display device; a secondary display controller and a secondary screen are arranged in the secondary display device;

The main display controller is used for receiving an external video signal transmitted by the electronic equipment, and the external video signal is used for displaying courseware;

transmitting a first enabling signal to the signal switcher to control the signal switcher to transmit the external video signal to the auxiliary display controller;

the auxiliary display controller is used for converting the external 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 apparatus, including:

one or more processors;

a memory for storing one or more programs;

when the one or more programs are executed by the one or more processors, the one or more processors implement the method for displaying courseware according to 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 a method for displaying courseware according to the first aspect.

In this embodiment, the main display controller receives an external video signal transmitted by the electronic device, where the external video signal is used to display courseware; the main display controller generates a first sub video signal based on the external video signal, wherein the first sub video signal is a screen driving signal matched with a 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; the first video signal is used for converting the first video signal into an external video signal and transmitting the external video signal to the signal switcher; the main display controller transmits a first enabling signal to the signal switcher to control the signal switcher to transmit an external video signal to the auxiliary display controller, the auxiliary display controller is used for converting the external video signal into a first sub video signal, the first sub video signal is transmitted to the auxiliary screen to be played, the main display controller coordinates the main display device and the auxiliary display device to play the first sub video signal and is connected with one electronic device, two machines are not required to be connected with different electronic devices respectively and independently, the simplicity of operation is greatly improved, the main display controller and the auxiliary display controller are not required to communicate frequently with courseware, the simplicity of operation is greatly improved, the same sub video signal is displayed on the main display device and the auxiliary display device, the real-time performance of courseware displayed by the main display device and the auxiliary display device is ensured, and the time delay of courseware displayed by the auxiliary display device is reduced.

Drawings

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

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

fig. 3 is a flowchart of a courseware display method according to a second embodiment of the present invention;

fig. 4 is a schematic structural diagram of a main display device according to a third embodiment of the present invention;

fig. 5 is a schematic structural diagram of a courseware display system according to a fourth embodiment of the present invention;

fig. 6 is a schematic structural diagram of a computer device according to a fifth embodiment of the present invention.

Detailed Description

The invention is described in further detail below 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 thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.

Fig. 1 is a schematic structural diagram of a main display device and a secondary 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, thereby realizing connection of the main display device 10 and the sub display device 20.

The data ports of the main display device 10 and the data ports of the auxiliary display device 20 can be provided with various types of pins such as video pins, data pins, network pins and the like according to service requirements.

Among them, a video pin may be used to transmit a video signal, and an HDMI (High Definition Multimedia Interface, high-definition multimedia interface) signal is taken as an example of the video signal, a pair of video pins may be used to transmit an HDMI clock signal, a pair of video signals may be used to transmit an HDMI red signal, a pair of video signals may be used to transmit an HDMI green signal, and a pair of video signals may be used to transmit an HDMI blue signal.

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

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

In general, as illustrated in fig. 1, the main display device 10 may specifically include the following structure: the display device comprises a controller 110, a main display controller 120 capable of converting video signals into screen driving signals, a signal converter 130 capable of converting the screen driving signals into video signals, a signal switcher 140, a main screen 150 and the like.

The controller 110 belongs to an operation module with higher performance.

For example, the controller 110 may be an Android (Android) module, i.e., an Android (Android) system may be installed, and components such as a CPU (Central Processing Unit ), a GPU (Graphics Processing Unit, graphics processor), 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, GPU, memory, hard disk, etc., for example, for a pluggable Intel Core series modular computer, the CPU is Intel Core i5/i7, the GPU is a Core display Intel HD Graphics, the memory is DDR4 8G/16G, and the hard disk is 128G/256G.

The main display controller 120 belongs to a display screen controller (Display Controllers), has lower operation performance, such as 811SOC (System on Chip), and is responsible for receiving video signals from a computer serial port, placing the video signals into a frame memory, and generating serial display data and scanning control time sequences required by a screen according to a partition driving mode, namely screen driving signals. Illustratively, the video signal is a high definition multimedia interface (High Definition Multimedia Interface, HDMI) signal, and the drive signal is a video serial interface (V-By-One, VBO) signal or a low voltage differential signaling technology interface (Low Voltage Differential Signaling, LVDS) signal. Among them, the VBO signal has an advantage of superimposing a Clock (CLK) on the original data signal of the video signal and transmitting in a common mode. Thus, compared with HDMI signals, CLK signal wires can be omitted, and the transmission distance is relatively short, so that the requirements on transmission wires are very low, and common five types of wires are needed. The LVDS interface uses a very low voltage swing (about 350 mV) to perform data transmission by differential between two printed circuit board traces or a pair of balanced cables, i.e., low voltage differential signaling. By adopting the LVDS interface, signals can be transmitted on the differential printed circuit board wires or the balance cable at a rate 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. In general, the display controller has built-in circuit logic for converting video signals into driving signals.

By using the interaction between the controller 110 and the main display controller 120, the signal processing with high operation performance requirement, such as annotation function, can be configured on the controller 110 with high operation performance. Moreover, the cost caused by changing the main display 120 is not increased.

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

The first video input port 121 is used for connecting with an electronic device to input a video signal from the electronic device 30. By way of example, the video signal of the electronic device 30 may include a graphical user interface of the electronic device 30. The electronic device 30 may be a mobile phone, a computer, a tablet, a screen-transmitting device, etc.

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

The first video input port 121 may expose a housing of the main display device 10, serve as a pin in a 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 for outputting video signals.

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 a 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, and may receive at least two video signals, which may be HDMI signals, and output one of the video signals. For the main display device 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 output by the main display controller 120 may be converted by the main display controller 120 according to the video signal input from the electronic device 30, or may be converted by the main display controller 120 according to the video signal input from the controller 110, and the main display controller 120 may select this.

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 a housing of the main display device 10, be a pin in a data port, be connected to the sub display device 20, and input a video signal output from the controller 110 or output from the signal converter 130 to the sub display device 20.

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

When the main display controller 120 transmits a 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.

Specifically, 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 the 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 a video signal from the second signal input port 142.

That is, it is possible to control which way of video signal is output by inputting an enable signal to the control port 144 of the signal switcher 140. It should be noted that, the video signal from the first signal input port 141 is 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 screen driving signal output by the main display controller 120 is converted by the main display controller 120 according to the video signal input from the electronic device 30, or converted by the main display controller 120 according to the video signal input from the controller 110. That is, when the control port 144 of the signal switcher 140 receives the first enable signal, an effect of outputting the video signal of the electronic device 30 or the video signal of the controller 110 to other display devices, such as the sub display device 20, can be achieved.

As shown in fig. 1, the sub display apparatus 20 may include a sub display controller 210, a sub screen 220, which may convert a video signal into a driving signal. The sub display controller 210 is connected with the data interface of the main display device 10 for inputting video signals; the sub-screen 220 is connected to the sub-display controller 210 for inputting a screen driving signal.

The auxiliary display controller 210 belongs to a display screen controller (Display Controllers), has lower operation performance, such as 811SOC, is responsible for receiving video signals from a computer serial port, is put into a frame memory, and generates serial display data and scanning control time sequences required by a screen according to a partition driving mode, namely a screen driving signal. Illustratively, the video signal is a high definition multimedia interface (High Definition Multimedia Interface, HDMI) signal, and the drive signal is a video serial interface (V-By-One, VBO) signal or a low voltage differential signaling technology interface (Low Voltage Differential Signaling, LVDS) signal. Among them, the VBO signal has an advantage of superimposing a Clock (CLK) on the original data signal of the video signal and transmitting in a common mode. Thus, compared with HDMI signals, CLK signal wires can be omitted, and the transmission distance is relatively short, so that the requirements on transmission wires are very low, and common five types of wires are needed. The LVDS interface uses a very low voltage swing (about 350 mV) to perform data transmission by differential between two printed circuit board traces or a pair of balanced cables, i.e., low voltage differential signaling. By adopting the LVDS interface, signals can be transmitted on the differential printed circuit board wires or the balance cable at a rate 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. In general, the display controller has built-in circuit logic for converting video signals into driving signals.

Taking an intelligent interaction panel as an example of a main display device and an auxiliary display device, the hardware part of the intelligent interaction panel is composed of a screen (such as a main screen and an auxiliary screen), an intelligent processing system (comprising a display controller (such as a main display controller and an auxiliary display controller), or a controller, a display controller (such as a main display controller and an auxiliary display controller)) and the like, and the intelligent interaction panel is combined by integral structural parts and is supported by a special software system, wherein the screen comprises a display screen and a backlight assembly, and the display screen comprises a transparent conductive layer, a liquid crystal layer and the like.

In the embodiments of the present disclosure, the display screen refers to a touch screen, and a touch panel, and is an inductive liquid crystal display device, and when a graphic button on the screen is touched, the haptic feedback system on the screen can drive various connection devices according to a preprogrammed program, and can be used to replace a mechanical button panel, and a vivid audio/video effect can be produced by using the liquid crystal display. Touch screens are distinguished from technical principles and can be divided into five basic categories; vector pressure sensing technology touch screens, resistive technology touch screens, capacitive technology touch screens, infrared technology touch screens, and surface acoustic wave technology touch screens. Touch screens can be divided into four categories according to the operating principle of the touch screen and the medium for transmitting information: resistive, capacitive, infrared, and surface acoustic wave.

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

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

Further, the main display device 10 may further include: a routing module (not shown) that may 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), a second network port (not shown).

The first network port is connected to the main display controller 120, and is used for inputting 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 secondary display 210, and is used for outputting an access signal. Further, the auxiliary 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 auxiliary screen 220, so as to drive the auxiliary screen 220 to display the video signal corresponding to the driving signal.

Example 1

Fig. 2 is a flowchart of a courseware display method provided in a first embodiment of the present invention, where the embodiment may be applicable to a case where a main display device and a secondary display device are controlled by a main display controller to display courseware of an electronic device, the method may be performed by the main display device and the secondary display device, 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 a controller, a main display controller, a signal switcher, a signal converter, and a main screen; the auxiliary display equipment is provided with an auxiliary display controller and an auxiliary screen, and the method specifically comprises the following steps:

s201, the main display controller receives an external video signal transmitted by the electronic equipment, and the external video signal is used for displaying courseware.

In this embodiment, the main display controller is kept connected to an electronic device, such as a personal computer, a notebook computer, etc., and the electronic device has a courseware, calls an application adapted to the format of the courseware, and opens the courseware, at this time, the courseware is displayed on a desktop, and converts desktop data into a video signal, such as an HDMI signal, so as to generate an external video signal, i.e., the external video signal is used to display the courseware.

The courseware may refer to a course document which is manufactured according to the teaching requirements through links such as teaching target determination, teaching content and task analysis, teaching activity structure, interface design and the like, for example, PPT (PowerPoint), word (word processor application), PDF (Portable Document Format ), txt (text document), seeao (hewang), 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 an activity such as interest classification (competitive mode), grouping competition, and judgment of error.

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 (athletic mode), grouping competition, error judgment and the like, clicking a start control can expand the activity and enter an activity stage.

For other activities, the active phase is entered after entering the active page or resetting of the courseware.

In the activity stage, a control for selecting an element in the class listening terminal is activated to be in an operable state, at this time, the class listening terminal can operate the element related to the activity, for example, in the activities of classification of "region", "country", a card "Beijing", "New York", "United states", "Chinese", in the activity is dragged, the element for controlling the activity (such as controls for pause, continuation, reset, etc.), and the element unrelated to the activity (such as shape, mind map) are operated.

In the summary phase, the results of the activity, such as scores, answers, etc., may be displayed, at which point the teaching terminal may click on a control for resetting or viewing the answers.

In one case, the main display device is connected to the electronic device by a wire.

Furthermore, the main display device is provided with a data port, the electronic device is also provided with a data port, and a data line can be connected between the data port of the main display device and the data port of the electronic device, so that the electronic device can be connected with the data port.

The data port of the main display device and the data port of the electronic device can be provided with various types of pins such as video pins, data pins, network pins and the like according to service requirements.

The video pins may be used to transmit video signals, and the HDMI signal is taken as an example of the video signals, and the pair of video pins may be used to transmit HDMI clock signals, the pair of video signals may be used to transmit HDMI red signals, the pair of video signals may be used to transmit HDMI green signals, and the pair of video signals may be used to transmit HDMI blue signals.

The data pins may be used to transmit serial signals, such as USB3.0 signals, USB2.0 signals, including camera, MIC (microphone), TOUCH (TOUCH operation), and the like.

In another case, the electronic device has a data port to which a screen-transmitting device is connected, and the main display device is wirelessly connected to the screen-transmitting device.

Further, the screen transmission device includes but is not limited to a form of USB Dongle (USB Dongle) and the like, including but not limited to a transmission interface, a wireless communication chip, an input unit, an output unit, a memory, a processor and the like.

The transmission interface is an interface which takes the screen transmission equipment as an external device and accesses other equipment (such as electronic equipment). For example, a USB interface (including but not limited to Type A, type B, type C), and the like.

The wireless communication chip may be used for wireless connection, including but not limited to a Wi-Fi chip, a bluetooth chip, etc., wherein the Wi-Fi chip may apply a 2.4G frequency band, a 5G frequency band, etc., and the wireless communication chip belongs to a short-range wireless transmission technology, and after the screen transmission device is paired with the main display device, a wireless connection may be established with the main display device through the wireless communication chip, and the screen transmission device may receive data (e.g., touch data, etc.) from the main display device through the wireless connection and input the data (e.g., screen data, audio data, etc.) to the main display device.

Pairing may refer to authenticating the screen transfer device by the master display device and writing information of the wireless access point of the master display device into the screen transfer device.

The input unit may be used to generate key signal inputs related to user settings and function control. Specifically, the input unit may include one or more of a function key (e.g., a control to control start of screen transfer, a control to control suspension of screen transfer, a control to stop screen transfer), a touch panel, a joystick, and the like.

The output unit may be used to output a status of the screen, e.g. on screen, paused screen, not on screen, etc., in particular the output unit may comprise an indicator light, etc.

The memory may be used to store software programs as well as various data. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an application program (e.g., pairing, transmitting screen data, audio data, touch data, etc.) required for at least one function, etc.; the storage data area may store data (e.g., pairing data, operation identification bits, etc.) created in accordance with the use of the screen. In addition, the memory 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 volatile solid-state storage device.

The processor is a control center of the screen-transfer device, including but not limited to an MPU (Micro Processor Unit, microprocessor), which utilizes various interfaces and lines to connect the various parts of the entire screen-transfer device, and performs various functions and processes of the screen-transfer device by running or executing software programs and/or modules stored in memory, and invoking data stored in memory, thereby performing overall monitoring of the screen-transfer device.

The screen transmission client can be installed in the electronic equipment, the screen transmission server can be installed in the main display equipment, the screen transmission client and the screen transmission server follow a screen transmission protocol, and screen transmission operation is executed between the electronic equipment and the main display equipment through the screen transmission equipment.

In this embodiment, the electronic device transmits its external video signal to the main display device, and the main display controller receives the external video signal.

S202, the main display controller generates a first sub-video signal based on the external video signal, wherein the first sub-video signal is a screen driving signal matched with the main screen.

Specifically, in this embodiment, after receiving the external video signal, the main display controller may convert the external video signal into a screen driving signal, thereby generating the first sub video signal.

Wherein the matching of the first partial video signal with the main screen means that the main screen can play the first partial 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 perform signal conversion processing on the input video signals to obtain driving signals which are of the same specification and are suitable for the main screen and the auxiliary screen.

S203, 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 first video signal is further used for converting the first video signal into the external video signal, and transmitting the external video signal to the signal switcher.

In this embodiment, the signal converter belongs to a converter, and may 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 partial video signal is processed by the signal converter, the signal converter may output the original first partial video signal in one path, and output the external video signal restored according to the first partial video signal in the other path.

For the first video signal output by the signal converter, the first video signal can be directly transmitted to the main screen for playing. Furthermore, the main display controller can be externally connected with the video signal and put into the frame memory, generates serial display data and scanning control time sequence required by the main screen for the externally connected video signal according to the partition driving mode, namely, the first sub video signal, and transmits the first sub video signal to the main screen through the signal converter, and the main screen plays according to the first sub video signal (the serial display data and the scanning control time sequence), so that courseware is displayed on the main screen.

And transmitting the external video signal output by the signal converter to the signal switcher.

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

In this embodiment, when the main display controller transmits the external video signal converted by the signal switch to the signal switch, at the same time, the main display controller generates the first enable signal and transmits the first enable signal to the signal switch.

The signal switcher responds to the first enabling signal and outputs the external video signal from the signal converter, namely, the external video signal is output to the auxiliary display controller, and the auxiliary display controller converts the external video signal into a first sub video signal and transmits the first sub video signal to the auxiliary screen for playing. Similarly, the first partial video signal is matched with the secondary screen and can be played in the secondary screen.

Further, the auxiliary display controller receives an external video signal from the main display device, puts the external video signal into the frame memory, generates serial display data and a scanning control time sequence required by a screen for the external video signal according to a partition driving mode, namely a first sub video signal, and plays the screen according to the first sub video signal (the serial display data and the scanning control time sequence), so that courseware is displayed on the screen.

Example two

Fig. 3 is a flowchart of a courseware display method according to a second embodiment of the present invention, where the present embodiment is based on the foregoing embodiment, and further adds processing for operating courseware, and the method specifically includes the following steps:

s301, the main display controller receives an external video signal transmitted by the electronic equipment, and the external video signal is used for displaying courseware.

S302, the main display controller generates a first sub-video signal based on the external video signal, wherein the first sub-video signal is a screen driving signal matched with the main screen;

s303, 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 signal switcher is also used for converting the first sub video signal into the external video signal and transmitting the external video signal to the signal switcher;

s304, the main display controller transmits a first enabling signal to the signal switcher so as to control the signal switcher to transmit the external video signal to the auxiliary display controller, and the auxiliary display controller is used for converting the external video signal into a first sub video signal and transmitting the first sub video signal to the auxiliary screen for playing.

S305, the main display receives touch operation acting on the non-main operation area.

S306, the main display controller transmits the touch operation to the electronic equipment.

In the main display device, the main display screen shields the controller from touch operations that are applied to the main display device.

The shielding may mean that the controller may receive the touch operation, but the main display informs the controller to ignore the touch operation, or may mean that the touch operation is not transmitted to the controller, which is not limited in this embodiment.

In this embodiment, the main display device has a main operation area and a non-main operation area.

The main operation area is an area designated in a UI (User Interface) of the main display device, such as a sidebar, and may be used to trigger an operation designated in the main display device, such as adding annotation information.

The non-main operation area is an area except the main operation area in the UI of the main display device and can be used for operating courseware.

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

And the electronic equipment operates courseware according to the touch operation of the non-main operation area in the main display equipment.

Further, in the main display device, the touch operation may be transmitted through a standard USB protocol, and a USB switch is disposed in the main display device, and the USB switch is respectively connected to the controller and the main display device, so that the received touch operation may be distributed to the controller and the main display device, and the main display device may send an enable signal to the USB switch, thereby controlling the USB switch to output the touch operation to the controller and/or the main display device.

It should be noted that, the main display controls the logic distributed by the touch operation, after the controller receives the touch operation, it does not determine whether to respond to the touch operation, but directly responds to the touch operation, if the touch operation is not transmitted to the controller, the logic superposition of the controller and the main display can be reduced, so that the coupling between the controller and the main display is reduced.

In this embodiment, the main display controller may send an enable signal to the USB switch, and control the USB switch to output the touch operation to the main display controller, where the touch operation is not received by the controller, or the touch operation is simultaneously output to the controller and the main display controller, where the controller ignores the touch operation.

In a particular implementation, courseware includes pages, each with elements in it, such as text, pictures, video, etc.

The touch operation may 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 so forth.

The touch operation may also be used to operate on elements in the page, such as adding new elements, deleting original elements, modifying original elements (e.g., dragging, rotating, scaling, changing properties (e.g., color, font type), etc.), and so on.

In one case, the touch operation may refer to data of touch points including 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.

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 electronic device have a difference in resolution, the coordinates of the touch point on the screen of the main display device can be mapped into the screen of the electronic device to unify the coordinates, so that courseware can be conveniently operated, namely, linear scaling and offset are carried out according to the size of the touch point on the screen of the main display device, and the matching of the touch position and the display position is realized.

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

If the screen of the main display device is the same as the screen of the electronic 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 known as a touch gesture, a swipe gesture, etc., such as a double click, a swipe to the left, a swipe to the right, etc.

In this case, the main display device may encapsulate the data of the touch point into touch events to map to functions commonly used for courseware, such as mapping left sliding to flip a previous page, mapping right sliding to flip a next page, and so on, thereby reducing the amount of computation of the electronic device on the data of the touch point.

Furthermore, 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 main display controller, the key event is directly sent to the electronic device by a USB HID keyboard mode, and the electronic device directly executes the operation corresponding to the key event.

After the electronic device operates courseware, the external video signal is updated, and the main display controller correspondingly updates the sub video signal, so that the operation on the main display device is synchronously displayed in the main display device and the auxiliary display device.

In this embodiment, the main display controller receives the touch operation acting on the main display device, and notifies the electronic device to operate courseware according to the touch operation, so that a user can conveniently operate the courseware near the main display device and synchronously display the operation of the user on the courseware on the auxiliary display device under the conditions that the main display device is far away from the auxiliary display device and the like, and the practicability is strong.

S307, the main display receives the touch operation acted on the non-main operation area.

And S308, the main display controller transmits the touch operation to the electronic equipment.

In the secondary display device, on the one hand, the secondary display device shields the touch operation that acts on the secondary display device.

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

On the other hand, the secondary display screen shields the controller from touch operations that are applied to the secondary display device.

The shielding may mean that the controller may receive the touch operation, but the secondary display informs the controller to ignore the touch operation, or may mean that the touch operation is not transmitted to the controller, which is not limited in this embodiment.

In the present embodiment, the sub display device has a sub operation area and a non-sub operation area.

The secondary operation area is an area designated in the UI of the secondary display device, such as a sidebar, and can be used to trigger an operation designated in the primary display device, such as adding annotation information.

The non-sub operation area is an area other than the sub operation area in the UI of the sub display device, and can be used for operating courseware.

The user can trigger touch operation on a non-secondary operation area in a screen of the secondary display device by using a finger or a touch pen according to the demonstration condition of actual courseware, the touch operation is transmitted to the main display device, and the main display device sends the touch operation to the electronic device.

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, the USB switch is respectively connected to the secondary display device and a data port of the secondary display device, the received touch operation may be distributed to the secondary display device, and the secondary display device 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 secondary display device.

It should be noted that, the auxiliary display controls the logic distributed by the touch operation, after the controller receives the touch operation, it does not determine whether to respond to the touch operation, but directly responds to the touch operation, if the touch operation is not transmitted to the controller, the logic superposition of the controller and the auxiliary display can be reduced, so that the coupling between the controller and the auxiliary display is reduced.

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

If the screen of the auxiliary display device and the screen of the electronic device have a difference in resolution, the coordinates of the touch point on the screen of the auxiliary display device can be mapped into the screen of the electronic device to unify the coordinates, so that courseware can be conveniently operated, namely, linear scaling and offset are carried out according to the size of the touch point on the auxiliary display device, and the matching of the touch position and the display position is realized.

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

If the screen of the secondary display device is the same as the screen of the electronic device in resolution, the coordinates of the touch point may be directly used.

In this case, the secondary display device may encapsulate the data of the touch point as a touch event to map to a function commonly used for courseware, such as mapping left sliding to flip a previous page, mapping right sliding to flip a next page, and so on, thereby reducing the amount of computation of the data of the touch point by the electronic device.

Furthermore, the auxiliary 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 auxiliary display controller, the auxiliary display controller transmits the touch event to the main display controller, the key event is directly sent to the electronic device in a USB HID keyboard mode, and the electronic device directly executes the operation corresponding to the key event.

In this embodiment, the main display controller receives the touch operation acting on the auxiliary display device, and notifies the electronic device to operate courseware according to the touch operation, so that a user can conveniently operate courseware on the auxiliary display device nearby under the condition that the main display device is far away from the auxiliary display device, and synchronously display the operation of the user on the courseware on the auxiliary display device, and the practicability is strong.

Example III

Fig. 4 is a schematic structural diagram of a main display device according to a third embodiment of the present invention, where the main display device is connected to a pair of display devices and an electronic device, and a controller 401, a main display controller 402, a signal converter 403, a signal switcher 404, and a main screen 405 are disposed in the main display device; and the auxiliary display equipment is provided with an auxiliary display controller and an auxiliary screen.

Wherein, the main display controller 402 is configured to:

generating a first sub video signal based on the external video signal, wherein the first sub video signal is a screen driving signal adapted to the main screen 405;

transmitting the first partial video signal to the signal converter 403, where the signal converter 403 is configured to transmit the first partial video signal to the main screen 405 for playing; and is further configured to convert the first video signal into the external video signal, and transmit the external video signal to the signal switcher 404;

The first enabling signal is transmitted to the signal switcher 404, so as to control the signal switcher 404 to transmit the external video signal to the auxiliary display controller, and the auxiliary display controller is used for converting the external video signal into a first sub video signal, and transmitting the first sub video signal to the auxiliary screen for playing.

In one embodiment of the invention, the primary display device has a data port to which the electronic device accesses;

or alternatively, the process may be performed,

the electronic equipment is provided with a data port, a screen transmission device is connected to the data port, and the main display device is connected with the screen transmission device in a wireless mode.

In one embodiment of the present invention, the main display 402 is further configured to shield the controller 401 from the touch operation applied to the main display device.

In one embodiment of the present invention, the secondary display is used for shielding touch operation on the secondary display device; the controller 401 is shielded from touch operations acting on the secondary display device.

In one embodiment of the present invention, the main display controller 402 is further configured to:

receiving touch operation acted on the non-main operation area;

And transmitting the touch operation to the electronic equipment, wherein the electronic equipment is used for operating the courseware according to the touch operation.

In one embodiment of the present invention, the secondary display device has a secondary operation area and a non-secondary operation area, and the main display controller 402 is further configured to:

receiving touch operation which is sent by the auxiliary display controller and acts on the non-auxiliary operation area;

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 IV

Fig. 5 is a schematic structural diagram of a courseware display system according to a fourth embodiment of the present invention, where the system includes a main display device 510 and a sub display device 520 connected to each other, and a controller 511, a main display controller 512, a signal switcher 514, a signal converter 513, and a main screen 515 are disposed in the main display device 510; a sub display 521 and a sub screen 522 are provided in the sub display device 520;

The main display controller 512 is configured to:

generating a first sub video signal based on the external video signal, wherein the first sub video signal is a screen driving signal adapted to the main screen 515;

transmitting the first partial video signal to the signal converter 513, where the signal converter 513 is configured to transmit the first partial video signal to the main screen 515 for playing; the signal switcher 514 is further configured to convert the first video signal into the external video signal, and transmit the external video signal to the external video signal;

transmitting a first enable signal to the signal switch 514 to control the signal switch 514 to transmit the external video signal to the auxiliary display controller 521;

the auxiliary display controller 521 is configured to convert the external video signal into a first sub-video signal, and transmit the first sub-video signal to the auxiliary screen 522 for playing.

In one embodiment of the invention, the primary display device 510 has a data port to which the electronic device accesses;

or alternatively, the process may be performed,

the electronic device is provided with a data port, a screen transmission device is connected to the data port, and the main display device 510 is connected with the screen transmission device in a wireless manner.

In one embodiment of the present invention, the main display 512 is further configured to shield the controller 511 from the touch operation of the main display 510.

In one embodiment of the present invention, the secondary display 521 is further used to shield the touch operation on the secondary display device 520; the controller 511 is shielded from the touch operation applied to the sub display device 520.

In one embodiment of the present invention, the main display 512 is further configured to:

receiving touch operation acted on the non-main operation area;

In one embodiment of the present invention, the secondary display device 520 has a secondary operation area and a non-secondary operation area, and the main display controller 512 is further configured to:

receiving a touch operation which is sent by the auxiliary display controller 521 and acts on the non-auxiliary operation area;

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 five

Fig. 6 is a schematic structural diagram of a computer device according to a fifth embodiment of the present invention. As shown in fig. 6, the computer apparatus includes a processor 600, a memory 601, a communication module 602, an input device 603, and an output device 604; the number of processors 600 in the computer device may be one or more, one processor 600 being taken as an example in fig. 6; the processor 600, the memory 601, the communication module 602, the input means 603 and the output means 604 in the computer device may be connected by a bus or other means, in fig. 6 by way of example.

The memory 601 is a computer readable storage medium, and can be used to store a software program, a computer executable program, and a module, such as a module corresponding to the display method of a courseware in this embodiment (for example, the controller 401, the main display controller 402 in the display system of a courseware as shown in fig. 4, or the controller 511, the main display controller 512, and the sub-display controller 521 in the display system of a courseware as shown in fig. 5). The processor 600 executes various functional applications of the computer device and data processing, that is, implements the above-described courseware display method, by running software programs, instructions, and modules stored in the memory 601.

The memory 601 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, at least one application program required for functions; the storage data area may store data created according to the use of the computer device, etc. In addition, the memory 601 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, memory 601 may further include memory located remotely from processor 600, which may be connected to a computer device via 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 602 is used for establishing connection with the display screen and realizing data interaction with the display screen. The input means 603 may be used to receive entered numeric or character information and to generate key signal inputs related to user settings and function control of the computer device.

The computer device provided in this embodiment may execute the courseware display method provided in any one of the embodiments of the present invention, and specifically, the corresponding functions and beneficial effects.

Example six

The sixth embodiment of the present invention further provides a computer readable storage medium, on which a computer program is stored, the computer program when executed by a processor implementing a method for displaying courseware, a main display device being connected to a pair of display devices and an electronic device, respectively, in the main display device being provided with a controller, a main display controller, a signal switcher, a signal converter, and a main screen; a secondary display controller and a secondary screen are arranged in the secondary display device, and the method comprises the following steps:

Of course, the computer readable storage medium provided by the embodiments of the present invention is not limited to the method operations described above, and may also perform related operations in the courseware display method provided by any of the embodiments of the present invention.

From the above description of embodiments, it will be clear to a person skilled in the art that the present invention may be implemented by means of software and necessary general purpose hardware, but of course also by means of hardware, although in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, etc., and include several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the embodiments of the present invention.

It should be noted that, in the embodiments of the display device of the main display device and courseware, each unit and module included are only divided according to the functional logic, but not limited to the above-mentioned division, so long as the corresponding functions can be implemented; in addition, the specific names of the functional units are also only for distinguishing from each other, and are not used to limit the protection scope of the present invention.

Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.

Claims

1. A courseware display method is characterized in that a main display device is respectively connected with a pair of display devices and an electronic 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; a secondary display controller and a secondary screen are arranged in the secondary display device; the method comprises the following steps:

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

the secondary display device has a secondary operation region and a non-secondary operation region, the method further comprising:

the main display controller receives touch operation which is sent by the auxiliary display controller and acts on the non-auxiliary operation area;

And the main display controller transmits the touch operation to the electronic equipment, and the electronic equipment is used for operating the courseware according to the touch operation.

2. The method of claim 1, wherein the primary display device has a data port, the electronic device accessing the data port;

or alternatively, the process may be performed,

3. The method of claim 1, wherein the main display masks touch operations acting on the main display device from the controller.

4. The method of claim 1, wherein the step of determining the position of the substrate comprises,

the secondary display controller shields the controller from touch operation acting on the secondary display device.

5. The method of any of claims 1-4, wherein the primary display device has a primary operational area and a non-primary operational area, the method further comprising:

the main display controller receives touch operation acted on the non-main operation area;

and the main display controller transmits the touch operation in the non-main operation area to the electronic equipment, and the electronic equipment is used for operating the courseware according to the touch operation in the non-main operation area.

6. The main display device is characterized in that the main display device is respectively connected with a pair of display devices and an electronic 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; a secondary display controller and a secondary screen are arranged in the secondary display device; wherein, the main display controller is used for:

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

The secondary display device has a secondary operation area and a non-secondary operation area, and the main display controller is further configured to:

7. The display system of courseware is characterized by comprising a main display device, an auxiliary display device and an electronic device, wherein the main display device is respectively connected with the auxiliary display device and the electronic 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; a secondary display controller and a secondary screen are arranged in the secondary display device;

the auxiliary display controller is used for converting the external video signal into a first sub video signal, and transmitting the first sub video signal to the auxiliary screen for playing;

8. A computer device, the computer device comprising:

one or more processors;

a memory for storing one or more programs;

when executed by the one or more processors, causes the one or more processors to implement a method of displaying courseware as claimed in any one of claims 1 to 5.

9. A computer readable storage medium having stored thereon a computer program, which when executed by a processor implements a method of displaying courseware according to any one of claims 1-5.