CN116521117A

CN116521117A - Terminal device, display apparatus, and control method thereof

Info

Publication number: CN116521117A
Application number: CN202310457957.8A
Authority: CN
Inventors: 李鹏; 万争艳; 韩天洋
Original assignee: BOE Technology Group Co Ltd; Beijing BOE Display Technology Co Ltd
Current assignee: BOE Technology Group Co Ltd; Beijing BOE Display Technology Co Ltd
Priority date: 2023-04-25
Filing date: 2023-04-25
Publication date: 2023-08-01

Abstract

The disclosure relates to a terminal device, a display device and a control method thereof, and relates to the technical field of display. The display device comprises a display panel, a first system board, a second system board, a display driving board and a power circuit; the first system board and the second system board are configured with systems, and the systems of the first system are the first systems; the system of the second system board is a second system; the display driving board is configured to control the first system and the second system to be started in a set starting mode, wherein one system is started as a foreground system, and the other system is started as a background system; in a start-up mode, at least one of the first system and the second system is started up; the power circuit is used for providing power for the first system board, the second system board and the display driving board.

Description

Terminal device, display apparatus, and control method thereof

Technical Field

The disclosure relates to the technical field of display, and in particular relates to a terminal device, a display device and a control method of the display device.

Background

The display device is widely applied to terminal equipment such as conference machines and the like, and can be used for realizing image display and interaction. The operating system is the basis for running the display device, but different operating system development costs and compatibility of application software are different due to different architectures of different operating systems. At present, if different operating systems are adopted, a plurality of devices are needed, so that the cost is high and the use is inconvenient.

It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art.

Disclosure of Invention

The present disclosure aims to overcome the above-mentioned drawbacks of the prior art, and provide a terminal device, a display device, and a control method of the display device, which can realize display under different systems in the same device.

According to an aspect of the present disclosure, there is provided a display device including:

a display panel;

the system comprises a first system board and a second system board, wherein the first system board is provided with a system, and the system of the first system is the first system; the system of the second system board is a second system;

a display driving board configured to control the first system and the second system to be started in a set starting mode, wherein one of the started systems is used as a foreground system, and the other system is used as a background system; in one of the start modes, at least one of the first system and the second system is started;

and the power supply circuit is used for providing power for the first system board, the second system board and the display driving board.

In one exemplary embodiment of the present disclosure, the start-up modes include a first start-up mode, a second start-up mode, and a third start-up mode;

in the first start-up mode, both the first system and the second system are started up;

in the second starting mode, the first system is started, and the second system is not started;

in the third starting mode, the first system is not started, and the second system is started;

the disabling includes powering off and hibernating.

in the second starting mode, the first system is started, and the second system is not started or started in a delayed mode;

in the third starting mode, the first system is not started or started in a delayed manner, and the second system is started;

the time delay starting is started after one of the first system and the second system is started and the other time delay is set to be long;

the disabling includes powering off and hibernating.

In an exemplary embodiment of the present disclosure, the display driving board is further configured to:

if an instruction for controlling the first system to run in a target state is acquired, and the acquired actual state of the first system is the target state, maintaining the running state of the first system in the target state;

if an instruction for controlling the first system to run in a target state is acquired, and the acquired actual state of the first system is not the target state, controlling the first system to run in the target state;

the target state includes one of startup, shutdown, and hibernation.

if an instruction for controlling the second system to run in a target state is acquired, and the acquired actual state of the second system is the target state, maintaining the actual state of the second system;

if an instruction for controlling the second system to run in a target state is acquired, and the acquired actual state of the second system is not the target state, controlling the second system to switch to the target state;

The target state includes one of startup, shutdown, and hibernation.

In an exemplary embodiment of the present disclosure, the display driving board includes a display driving chip, a power input interface connected with the driving chip, a display output interface, a first display input interface, a second display input interface, a first system control interface, and a second system control interface;

the power input interface is connected with the power circuit;

the first display input interface is connected with the first system board and is used for transmitting first display information from the first system board; the second display input is connected with the second system board and is used for transmitting second display information from the second system board;

the display output interface is connected with the display panel;

the first system control interface is connected with the first system board and is used for acquiring the actual state of the first system; the second system control interface is connected with the second system board and is used for acquiring the actual state of the second system.

In one exemplary embodiment of the present disclosure, the first system control interface includes a first sub-interface and a second sub-interface; the second system control interface comprises a third sub-interface and a fourth sub-interface;

The first sub-interface and the second sub-interface are both connected with the first system board, and the display driving board obtains the actual state of the first system board through the first sub-interface; the display driving board controls the first system board to be switched from the actual state to the target working state through at least one of the first sub-interface and the second sub-interface;

the third sub-interface and the fourth sub-interface are both connected with the second system board, and the display driving board obtains the actual state of the second system board through the third sub-interface; and the display driving board controls the second system board to be switched from the actual state to the target working state through at least one of the third sub-interface and the fourth sub-interface.

In one exemplary embodiment of the present disclosure, the display panel includes a liquid crystal display module and a backlight module; the display output interface is connected with the liquid crystal display module; the power supply circuit is also used for providing power supply for the backlight module;

the display driving plate further comprises a backlight control interface, and the backlight control interface is connected with the backlight module.

if the first starting mode is started and the operation of the foreground system is abnormal, the background system is switched to a new foreground system;

if the first system is started in the first starting mode and the operation of the first system is abnormal, and a switching instruction is received, a first system is started and is switched to the foreground system;

if the first system is started in the first starting mode and the second system is started in the second starting mode, and the second system is started in the first starting mode and is switched to the foreground system when the first system is started in the second starting mode and the second system is started in the first starting mode and is abnormal in operation and a switching instruction is received.

In an exemplary embodiment of the present disclosure, the display driving board is further configured to: when a shutdown signal is received and the actual state of the background system is shutdown, closing the foreground system and stopping the power supply of the power supply circuit;

when a shutdown signal is received and the actual state of the background system is dormant, if an instruction for starting the background system is received, closing the foreground system, starting the background system and switching to the foreground system; if an instruction for not starting the background system is received, closing the foreground system and the display panel;

When a shutdown signal is received and the actual state of the background system is started, if a signal for closing the background system is received, closing the foreground system and the background system and stopping the power supply of the power supply circuit; and if the signal of not closing the background system is received, closing the foreground system and switching the background system into a new foreground system.

In one exemplary embodiment of the present disclosure, the power circuit includes a display power output interface, a backlight power interface, a first system power interface, and a second system power interface; the display power output interface is connected with the display power input interface; the backlight power interface is connected with the backlight module; the first system power interface is connected with the first system board, and the second system power structure is connected with the second system board;

the display device further includes a power control circuit including a first resistor, a second resistor, a capacitor, a unidirectional conductive element, a first transistor, a second transistor, and a third transistor;

the first polar plate of the capacitor is connected with the display power supply output interface, and the second polar plate is connected with a reference potential;

The first end of the first resistor is connected with the control end of the first transistor, and the second end of the first resistor is connected with the first polar plate of the capacitor;

the first end of the second resistor is connected with the first polar plate of the capacitor, and the second end of the second resistor is connected with the control end of the second transistor;

the input end of the unidirectional conductive element is connected with the first end of the first resistor and the control end of the first transistor, and the output end of the unidirectional conductive element is connected with the backlight power interface;

a first electrode of the first transistor is connected with the display power supply output interface, and a second electrode of the first transistor is connected with a reference potential;

the control end of the second transistor is connected with the control end of the third transistor; a first pole of the second transistor is connected with the first system power interface, and a second pole is connected with a reference potential; the first pole of the third transistor is connected with the second system power interface, and the second pole is connected with a reference potential.

In an exemplary embodiment of the present disclosure, the first system board includes a first main control chip, and a first memory chip, a first display output interface, a first control interface, and a first power interface connected with the first main control chip; the first display output interface is connected with the first display input interface, the first control interface is connected with the first system control interface, and the first power supply interface is connected with the power supply circuit;

The second system board comprises a second main control chip, a second storage chip connected with the second main control chip, a second display output interface, a second control interface and a second power interface; the second display output interface is connected with the second display input interface, the second control interface is connected with the second system control interface, and the second power interface is connected with the power circuit.

According to an aspect of the present disclosure, there is provided a terminal device including the display apparatus described in any one of the above.

According to an aspect of the present disclosure, there is provided a control method of a display device, the display device being any one of the above; the control method comprises the following steps:

controlling the first system and the second system to be started in a set starting mode, wherein one started system is used as a foreground system, and the other started system is used as a background system; in one of the start modes, at least one of the first system and the second system is started.

the disabling includes powering off and hibernating.

The terminal equipment, the display device and the control method thereof adopt the first system board and the second system board which are respectively provided with the first system and the second system, the first system board and the second system board can both control the display panel to display images through the display driving board, and the power supply circuit can be used for supplying power, so that multi-system display can be realized in the same display device. Meanwhile, the starting modes of the first system and the second system can be controlled through the display driving plate, at least one system is started, one started system is used as a foreground system, the other started system is used as a background system, only one system (foreground system) controls image display at the same time, and the other system does not participate in image display, so that collision is avoided.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.

Fig. 1 is a schematic diagram of an embodiment of a display device of the present disclosure.

Fig. 2 is a schematic diagram of a first system board in an embodiment of a display device according to the disclosure.

Fig. 3 is a schematic diagram of a second system board in an embodiment of the display device of the disclosure.

Fig. 4 is a schematic diagram of a display driving board and a display panel in an embodiment of a display device according to the disclosure.

Fig. 5 is a schematic diagram of a power circuit in an embodiment of a display device according to the disclosure.

Fig. 6 is a schematic diagram of a system menu of the display device of the present disclosure.

Fig. 7 is a schematic diagram of a power control circuit in an embodiment of a display device according to the disclosure.

Fig. 8 is a flowchart of system startup in an embodiment of a display device of the present disclosure.

Fig. 9 is a flowchart of system state control in an embodiment of a display device according to the present disclosure.

Fig. 10 is a flowchart of a system switching process in an embodiment of the display device of the present disclosure.

Fig. 11 is a flowchart illustrating a shutdown procedure in an embodiment of the display device of the present disclosure.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus detailed descriptions thereof will be omitted. Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale.

The terms "a," "an," "the," "said" and "at least one" are used to indicate the presence of one or more elements/components/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. in addition to the listed elements/components/etc.; the terms "first," "second," and "third," etc. are used merely as labels, and do not limit the number of their objects.

The disclosed embodiments provide a display device, as shown in fig. 1 to 5, which may include a display panel 1, a first system board 2, a second system board 3, a display driving board 4, and a power circuit 5, wherein:

a first system board 2 and a second system board 3 configured with a system, the system of the first system being a first system; the system of the second system board 3 is a second system.

A display drive board 4 configured to control the first system and the second system to be started in a set start mode, and to use one of the started systems as a foreground system and the other as a background system; in a start-up mode, at least one of the first system and the second system is started up.

A power supply circuit 5 for supplying power to the first system board 2, the second system board 3, and the display driving board 4.

The display device of the embodiment of the present disclosure employs the first system board 2 and the second system board 3 respectively configured with the first system and the second system, and both the first system board 2 and the second system board 3 can control the display panel 1 to display images through the display driving board 4, and the power supply circuit 5 can be used for supplying power, whereby dual-system display can be realized in the same display device. Meanwhile, the starting modes of the first system and the second system can be controlled through the display driving board 4, so that at least one system is started, one started system is used as a foreground system, the other started system is used as a background system, only one system (foreground system) controls image display at the same time, and the other system does not participate in image display, so that collision is avoided.

The display device of the present disclosure is described in detail below:

the display panel 1 may be a liquid crystal display panel, an OLED (organic light emitting diode) display panel, or the like, as long as an image can be displayed, and is not particularly limited herein. Taking a liquid crystal display panel as an example, the liquid crystal display panel may include a liquid crystal display module 11 and a backlight module 12, wherein:

the liquid crystal display module 11 may include an array substrate and a counter substrate disposed opposite to each other, and a liquid crystal layer disposed between the array substrate and the counter substrate. The backlight module 12 may be disposed on a side of the array substrate facing away from the opposite substrate. The backlight module 12 can be used as a light source to emit light to the array substrate, and the deflection of liquid crystal molecules can be controlled by a driving circuit of the array substrate, so that gray scale is controlled, and image display is realized. The opposite substrate can be a color film substrate which can be provided with a plurality of color resistances, and color display is realized through the filtering effect of the color resistances of different colors. Of course, the opposite substrate may not include color resistance, and the backlight module 12 may emit light of different colors, and may also implement color display by field sequential display.

When the liquid crystal display panel displays an image, a signal for driving a driving circuit of the array substrate and a signal for driving the backlight module 12 are required to be obtained. For the OLED display panel, since the backlight module 12 does not exist in the OLED display panel, a driving signal needs to be input to the driving back plate to drive the organic light emitting device on the driving back plate to emit light.

In addition, in order to facilitate interaction with a user, the display panel 1 may have a touch layer, which may include a touch electrode, and the touch layer may have a capacitive or resistive touch structure, so long as a touch operation can be sensed.

The system board is a board card of a configurable system, the system can be used for controlling the display panel 1 to display images through the display driving board 4, the system can be Windows and Linux based on an X86 architecture, an android system based on an arm architecture, and other systems can be used, and the system is not limited in particular.

The system board can comprise a main control chip, a memory chip, a display output interface, a control interface and a power input interface, wherein the memory chip, the display output interface, the control interface and the power input interface are all connected with the main control chip. The power input interface may be connected to a power circuit 5 for supplying power. The main control chip can output display information to the display driving board 4 through the display output interface based on system operation, application program operation, user operation and the like. Through the control interface may be used to send the status of the system, e.g. start-up, sleep and shut down, to the display driver board 4. Further, the power input interface and the main control chip can be connected through a system voltage conversion circuit, so that the voltage provided by the power circuit 5 can be converted into the voltage required by the main control chip.

To implement multi-system display in the same device, although a plurality of systems, for example, android simulators based on Windows system may be configured in a single system board based on a simulator, thereby implementing a dual system. But the software compatibility of the simulator is low and the functionality at run-time is limited.

In this regard, the inventors propose: different systems can be respectively configured by adopting a plurality of system boards, multi-system display can be realized based on the different system boards, each system board can only operate a single system without adopting a simulator, so that the compatibility problem is avoided, and the advantages of each system are maximized. Meanwhile, the display driving board 4 can control a plurality of system boards to realize the functions of starting, closing, switching and the like among a plurality of systems.

It should be noted that the present disclosure is not limited to one system board only, and even if a plurality of system boards are used, each system board may still operate a plurality of systems through a simulator or other means.

In some embodiments of the present disclosure, the system boards may include a first system board 2 and a second system board 3, where the first system board 2 is configured with a first system and the second system board 3 is configured with a second system, different from the first system, for example, the first system is a Windows system and the second system is an android system, although the two may be interchanged, or other systems may be employed.

As shown in fig. 2, the first system board 2 may include a first main control chip 21, a first memory chip 22, a first display output interface 23, a first control interface 24, and a first power interface 25; the first memory chip 22, the first display output interface 23, the first control interface 24 and the first power interface 25 are all connected with the first main control chip 21. The first system board 2 may further include a first system voltage conversion circuit 26, which may connect the first main control chip 21 and the first power interface 25.

As shown in fig. 3, the second system board 3 may include a second main control chip 31, a second memory chip 32, a second display output interface 33, a second control interface 34, and a second power interface 35; the second memory chip 32, the second display output interface 33, the second control interface 34 and the second power interface 35 are all connected with the second main control chip 31. The first system board 2 may further include a second system voltage conversion circuit 36, which may connect the second main control chip 31 and the second power interface 35.

The display driving board 4 may drive the display panel 1 to display images under the control of the system board, which may be a board card independent from the system board, or may be integrated with the system board on the same circuit board. The display driving board 4 acquires display information provided by the system board, generates a driving signal based on the display information, and sends the driving signal to the display panel 1 to control the display panel 1 to display an image.

As shown in fig. 4, in some embodiments of the present disclosure, the display driver board 4 may include a display driver chip 41, a power input interface 42, a display output interface 43, a first display input interface 44, a second display input interface 45, a first system control interface 46, and a second system control interface 47; the power input interface 42, the display output interface 43, the first display input interface 44, the second display input interface 45, the first system control interface 46, and the second system control interface 47 are all connected to the driving chip.

The first display input interface 44 may be connected with the first display output interface 23 to be connected with the first system board 2 for transmitting first display information from the first system board 2. The second display input may be connected to the second display output interface 33 and thus to the second system board 3 for transmitting second display information from the second system board 3.

The interface types of the first display input interface 44, the first display output interface 23, the second display input interface 45, and the second display output interface 33 are not particularly limited herein, and are specific depending on the type of system. For example, the first system is an android system, the second system is a Windows system, and the first display input interface 44 and the first display output interface 23 are HDMI interfaces (High Definition Multimedia Interface, high-definition multimedia interfaces). The second display input and second display output interface 33 may be a DP (DisplayPort) interface.

The display output interface 43 may be connected to the display panel 1 for transmitting driving signals, for example, the display output interface 43 may be connected to the liquid crystal display module 11. The display output interface 43 may be a VBO interface, an eDP interface, or the like, and is not particularly limited herein.

The first system control interface 46 is connected to the first control interface 24 and thus to the first system board 2 for acquiring the actual state of the first system, and the second system control interface 47 is connected to the second control interface 34 and thus to the second system board 3 and for acquiring the actual state of the second system. The actual states may be on, off, and dormant. The operating voltages of the first system board 2 and the second system board 3 can be obtained, and when the operating voltage is at a high level, the actual state is indicated as being on, and when the operating voltage is at a low level, the actual state is indicated as being off. Meanwhile, the state signals of the first system board 2 and the second system board 3 can be obtained, when the working voltage is high, if the voltage of the state signals is higher than a threshold value, the system operates normally, and the actual state is starting; if the voltage of the status signal is lower than the threshold value, the actual status is dormant. The operating voltage and the status signal may be obtained through a GPIO (General purpose input/output) interface or other interfaces.

In addition, the first system board 2 and the second system board 3 may be controlled by the display driving board 4, and for example, the first system and the second system may be started by transmitting a start signal (power_on) to the first system board 2 and the second system board 3; a Power-off signal (power_off) may also be transmitted to the first system board 2 and the second system board 3, causing the first system and the second system to be turned off. Meanwhile, the first system and the second system can be controlled to sleep or wake up the first system and the second system of sleep through the I2C interface or other interfaces. For example, when the first system and the second system sleep, the display driver board 4 card may output a wake-up signal through the I2C interface to wake up the first system and the second system. If the first system and the second system are in a normal running state and need to sleep, the display drive board 4 card can output a sleep signal through the I2C interface so that the first system and the second system sleep.

Since the I2C interface may communicate with a plurality of system boards, the display driving board 4 may broadcast a wake-up signal and a sleep signal, where the wake-up signal and the sleep signal may include address information and command information, the first system board 2 and the second system board 3 may have unique address information, respectively, and the first system board 2 and the second system board 3 may compare their own address information with the received address information, and if they are consistent, execute the command information to wake-up and sleep.

In some embodiments of the present disclosure, the first system control interface 46 may include a first sub-interface and a second sub-interface; the second system control interface 47 includes a third sub-interface and a fourth sub-interface;

the first sub-interface and the second sub-interface are both connected with a first control interface 24 of the first system board 2, and the display driving board 4 obtains the actual state of the first system board 2 through the first sub-interface; the display driving board 4 controls the first system board 2 to switch from the actual state to the target operating state through at least one of the first sub-interface and the second sub-interface. The first sub-interface may be the GPIO interface described above, and the second sub-interface may be the I2C interface described above. The actual state may be determined by the operating voltage and the state voltage, and the actual state and the target state may be on, off, and dormant.

The third sub-interface and the fourth sub-interface are both connected with the second system board 3, and the display driving board 4 obtains the actual state of the second system board 3 through the third sub-interface; the display driving board 4 controls the second system board 3 to switch from the actual state to the target operating state through at least one of the third sub-interface and the fourth sub-interface. The third sub-interface may be the GPIO interface described above, and the fourth sub-interface may be the I2C interface described above. The actual state may be determined by the operating voltage and the state voltage, and the actual state and the target state may be on, off, and dormant.

The power input interface 42 may be connected to the power circuit 5 so that the power circuit 5 supplies power to the display driving board 4.

In addition, in some embodiments of the present disclosure, the display driving board 4 may further include a backlight control interface 48, which may be connected with the backlight module 12, may control the backlight module 12 through a PWM signal, etc.

As shown in fig. 5, the power supply circuit 5, which is a power supply of the display device, may include an external power supply interface 59, a display power supply output interface 51, a backlight power supply interface 52, a first system power supply interface 53, and a second system power supply interface 54; the external power interface 59 can be connected with the mains supply, the voltage of the external power interface 59 can be 220V, and the external power interface 59 can also be connected with other electric storage devices, so that the external power interface 59 is not particularly limited; the display power output interface 51 is connected with the display power input interface 42 and is used for supplying power to the display driving board 4; the backlight power interface 52 is connected with the backlight module 12 and is used for supplying power to the backlight module 12; the first system power interface 53 is connected to the first power interface 25 of the first system board 2, and the second system power interface 54 is connected to the second power interface 35 of the second system board 3, to supply power to the first system board 2 and the second system board 3.

In some embodiments of the present disclosure, the power supply circuit 5 may further include a plurality of voltage conversion circuits including first to fourth voltage conversion circuits, the first voltage conversion circuit 55 is connected between the external power supply interface 59 and the display power supply output interface 51, and the first voltage conversion circuit 55 may output a 5V voltage. The second voltage conversion circuit 56 may be used to output 12V voltage simultaneously with the external power interface 59, the display power output interface 51 and the first system board 2. The third voltage conversion circuit 57 is connected between the external power interface 59 and the backlight power interface 52, and the third voltage conversion circuit 57 can output 24V voltage. The fourth voltage conversion circuit 58 is connected between the external power interface 59 and the second system board 3, and can output 19V voltage.

In some embodiments of the present disclosure, the display driver board 4 may further include a control circuit 49, which may connect the display output interface 43 and the display driver chip 41, and the power circuit 5 may supply power through the display driver board 4, for example, to the liquid crystal display module 11. The voltage of the signal transmitted to the display panel 1 can be controlled by the control circuit 49.

Based on the display device of the above embodiment, the present disclosure includes controlling the first system and the second system, including startup, switching, and shutdown, respectively described below:

start-up

The first system and the second system can be controlled to be started in a set starting mode through the display driving board 4, and one started system is used as a foreground system, and the other started system is used as a background system; in a start-up mode, at least one of the first system and the second system is started up.

The foreground system is a system for controlling the display panel 1 to display images, and the background system does not participate in displaying images. For example, if both the first system and the second system are activated, the foreground system may be one of the first system and the second system, and the background system may be the other. There is only one foreground system at the same time.

In some embodiments of the present disclosure, the start-up modes include a first start-up mode, a second start-up mode, and a third start-up mode;

In a first starting mode, both the first system and the second system are started;

in a second starting mode, the first system is started, and the second system is not started;

in a third starting mode, the first system is not started, and the second system is started;

in some embodiments of the present disclosure, in a first start-up mode, both the first system and the second system are started up;

in a second starting mode, the first system is started, and the second system is not started or started in a delayed mode;

in a third starting mode, the first system is not started or started in a delayed mode, and the second system is started;

and the time delay starting is started after one of the first system and the second system is started and the other time delay is started after a specified time length.

Such inactivity may include shutdown and hibernation.

Further, non-startup may include shutdown and hibernation, and may include delayed startup in addition to startup and non-startup, since only one system may be in a startup state at the same time, for example, it may be difficult for one system to have both shutdown and hibernation states. Thus, the second start-up mode may comprise first to third sub-start-up modes, and the third start-up mode may comprise fourth to sixth sub-start-up modes, wherein:

in the first sub-start mode, the first system is started and the second system is shut down.

In the second sub-start mode, the first system starts and the second system sleeps.

In the third sub-start mode, the first system starts and the second system starts in a delayed manner.

In the fourth sub-start mode, the second system is started and the first system is shut down.

In the fifth sub-start mode, the second system is started and the first system is dormant.

In the sixth sub-start mode, the second system starts and the first system starts in a delayed manner.

Based on the above description, when the system is started, at least seven starting modes, that is, the first starting mode and the first to sixth sub starting modes, may be selected.

Based on the above start-up mode, this can be performed, for example, by:

in some embodiments of the present disclosure, a plurality of start modes and actions to be executed in each start mode may be preset, and after a start instruction is received, a start mode matching the start instruction is selected and a corresponding action is executed. Based on this concept, controlling the first system and the second system to be started in a set start mode; this step may be accomplished by, for example, including:

after the startup instruction is received, if the startup instruction comprising the startup mode is received, one of the preset first startup mode, the second startup mode and the third startup mode, which is the same as the startup mode of the startup instruction, is selected to control the startup of the first system and the second system.

The power-on command can be used for controlling the power supply to the display driving plate, the first system plate, the second system plate and the backlight module through the power circuit. The start-up instruction can be triggered by setting a switch on the trigger display device, can be remotely sent out by a remote controller, a mobile phone and other terminal equipment, and can be specifically transmitted based on communication modes such as infrared and wireless networks, and the like, and the start-up instruction is not particularly limited. The user may manually set the start mode, and the start instruction may be issued by the user based on a switch on the display panel or an operation of a system state setting menu displayed on the display panel, or may be issued by means of touch, voice control, or the like, which is not particularly limited herein.

A first start mode and seven start modes of the first to sixth sub start modes may be preset in the display driving panel. The startup modes included in the startup instruction may be compared with the seven startup modes one by one in the specified order, and when one identical to the startup mode included in the startup instruction is found in the seven startup modes, execution is performed in accordance with the corresponding action. For example, the start command may include reference check information uniquely corresponding to the start mode, and each of the start modes (seven start modes) preset by the display driver board has standard check information, and after the start command is acquired, the reference check information may be compared with each standard check information one by one, and when the standard check information identical to the reference check information is found, the start mode corresponding to the standard check information is executed.

After the starting instruction is received, if the starting instruction containing the starting mode is not received, starting the first system and the second system according to a default starting mode, wherein the default starting mode comprises a first starting mode, a second starting mode and a third starting mode.

After receiving the startup command, the user does not set the startup mode, and the startup can be performed according to a default startup mode, wherein the default startup mode can be one of the first startup mode to the third startup mode, namely one of the seven startup modes of the first startup mode and the first startup mode to the sixth startup mode. The default startup mode may be preset to be a fixed one, and may be started according to the startup mode as long as no startup instruction is received, for example, the default startup mode is the first startup mode. Or, the method may also be started directly by a starting mode set last time before the current start, for example, the second sub-starting mode is executed after the last time of receiving the driving instruction before the current start, and if the starting instruction is not received after the current start, the method is started directly according to the second sub-starting mode.

Handover

The actual state of the first system and the second system can be acquired by the display drive board 4, whereby control is performed, specifically:

If the display drive backboard acquires an instruction for controlling the first system to run in the target state and the acquired actual state of the first system is the target state, the running state of the first system in the target state is maintained. The determination of the actual state may be referred to above by way of the determination of the operating voltage and the state voltage, and will not be described in detail here.

And if the display drive backboard acquires an instruction for controlling the first system to operate in the target state and the acquired actual state of the first system is not in the target state, controlling the first system to operate in the target state.

If the display drive backboard acquires an instruction for controlling the second system to run in the target state and the acquired actual state of the second system is the target state, maintaining the actual state of the second system;

and if the display drive backboard acquires an instruction for controlling the second system to run in the target state and the acquired actual state of the second system is not the target state, controlling the second system to switch to the target state. The control of the second system may be referred to as the control of the first system and will not be described in detail herein.

The target state includes one of startup, shutdown, and hibernation.

For example, if the actual state and the target state are both on, dormant or off, the actual state is maintained. If the actual state is closed and the target state is started, the first system can be started; if the actual state is closed or dormant and the target state is started, the first system can be started; if the actual state is started or closed and the target state is dormant, the first system can be dormant; if the actual state is on or dormant and the target state is off, the first system may be turned off.

As shown in fig. 6, the start mode at the time of the start and the above specified mode may be manually set, for example, a multi-level menu for performing system setting may be generated on the display panel 1, including a main menu, a system state setting submenu, a first start submenu, and a second start submenu, wherein the main menu may include three options of system state setting, a first system control, and a second system control, the system state submenu in the system state setting includes both the first system and the second system start options (first start mode), and the first start submenu in the first system start option includes the second system off, the second system sleep, and the second system delay start; the second start submenu under the second system start option includes a first system shutdown, a first system hibernate, and a first system delay start. The first to third start modes, i.e., the first start mode and the first to sixth start modes, can be set by selecting the options of the main menu, the system state submenu, the first start submenu, and the second start submenu. For the starting option, a next level submenu can be further set so as to set a designated time length, the designated time length of the delayed starting of the first system is a first designated time length, the designated time length of the delayed starting of the second system is a second designated time length, and the first designated time length and the second designated time length can be the same or different.

System startup is illustrated below in conjunction with fig. 8 to be based on menu settings:

the user can execute the operation of opening the main menu through remote control devices such as a remote controller or a mobile phone or keys on a display device; the main menu may be selected from a system state setting submenu, and of course, other menu operations may be selected, which is not particularly limited herein.

And under the system state setting submenu, judging which preset starting mode is matched with the received starting instruction, and if the starting instruction enables the first system and the second system to be started, executing the action of starting the first system and the second system. If not, judging whether the first system is started or not, and not starting a non-starting instruction of the second system; if so, judging whether to close the second system, dormancy the second system and delay starting the starting instruction of the second system in sequence, if the starting instruction is to close the second system, starting only the first system, and closing the second system; if the starting instruction is to sleep the second system, starting the first system and sleeping the second system; if the starting instruction is to start the second system in a delayed manner, setting the appointed time length under the menu with the appointed time length, starting the first system again, and starting the second system in a delayed manner.

If the start command does not include the start of the first system, whether the start of the second system is included is determined, if yes, whether to delay the first system, sleep the first system and delay the start of the first system is sequentially determined, and the specific implementation process can refer to the determination of the second system above and will not be described in detail here.

It should be noted that the above-described flow is merely an exemplary description, and the determination order for various start modes may be changed.

In addition, the main menu may further include a first system control option and a second system control option, and may further generate a first control submenu under the first system control option and a second control submenu under the second system control option; the first control submenu includes maintaining a first system state, hibernating the first system, and shutting down the first system option; the second control submenu includes maintaining a second system state, hibernating the second system, and shutting down the second system option. The switching of the states of the first system and the second system can be achieved by selection of the menu described above.

Control of system states based on menu settings is illustrated below in connection with fig. 9:

taking the first system as an example:

Under the condition of selecting the first system control submenu, if the received instruction is to select the first system to start, judging the actual state of the first system, and if the actual state is to start, maintaining the actual state; if the actual state is not the start-up, the first system is started up.

If the received instruction does not select the first system to start, judging whether the first system is dormant, if so, judging the actual state, if so, maintaining the actual state, and if not, making the first system dormant.

If the received instruction does not select the first system to sleep, judging whether the first system is closed, if so, judging the actual state, if so, maintaining the actual state, and if not, closing the first system.

The state control of the second system may be referred to the description of the first system above and will not be described in detail here.

Further, if the operations of the first system and the second system are abnormal, for example, the start-up fails, the foreground system is not matched with the display information received by the display driving board 4 (for example, the foreground system is the first system, the display information received by the display driving board 4 is the second display information), or the display information is not received. The foreground system and the background system can be switched to ensure normal display. In some embodiments of the present disclosure, the display drive board 4 may be further configured to:

If the first starting mode is started and the operation of the foreground system is abnormal, the background system is switched to a new foreground system. For example, the first system is a foreground system, the second system is a background system, and if the first system is abnormal, the second system can be switched to the foreground system.

If the first system is started in the second starting mode and the operation of the first system is abnormal, and when a switching instruction is received, the second system is started and is switched to the foreground system. In the second starting mode, only the first system is started, so that if the first system is abnormal, the second system can be started and switched to the foreground system.

If the first system is started in the first starting mode and the second system is started in the second starting mode, the first system is started and is switched to the foreground system when the first system is started and the second system is started in the first starting mode and is started in the second starting mode. In the third starting mode, only the second system is started, so that if the second system is abnormal, the first system can be started and switched to the foreground system.

In other embodiments of the present disclosure, for the second and third start modes, the states of the first system and the second system may be acquired, and when the first system is abnormal, a menu prompting to start the second system may be generated, where the content of the menu depends on the state of the second system, for example, the second system is turned off, and the menu includes an option to start the second system; the second system is dormant and the menu includes an option to wake up the second system. When the first system is abnormal, the method for handling the first system abnormality is referred to and will not be described in detail herein.

In addition, in some embodiments of the present disclosure, the above-mentioned switching process may also be implemented according to a preset manner or instruction, where no abnormality occurs in the first and second systems, and switching between the foreground and background systems may be implemented.

In some embodiments of the present disclosure, the display driving board 4 obtains the first and second display information in addition to the actual states of the first and second systems, and the first display information and the second display information may be transmitted through different interfaces, so that it may be determined that the received display information is the first display information or the second display information through the address of the interface. Of course, the distinction and identification of the two display information can also be achieved by adding the marker information to the first display information and the second display information. In addition, transmission of the display information may also fail, for example, the display information cannot be received. For a mismatch of display information received by the foreground system and the display driver board 4, it can be controlled by the display driver board 4 by:

when the first system and the second system are both in the starting state, if the foreground system is not matched with the acquired display information, the background system can be switched to the foreground system, for example, the foreground system is the first system, the acquired display information is the second display information, and the second system can be used as the foreground system and the first system is used as the background system. Alternatively, the display information may be switched, for example, the foreground system is a first system, and the acquired display information is a second display information, so that the first display information provided by the first system board may be acquired, and the second display information may not be acquired any more.

If only one of the first system and the second system is in a starting state, the other system is set to be closed; if the started system is not matched with the acquired display information, the display information can be prompted to be abnormal through a display window or other images on the display panel without switching the display information, and of course, a prompt can be sent out through sound or other modes. In addition, a setup menu for starting the system in the off state may also be generated for selection by the user.

Only one of the first system and the second system is in a start-up state, and the other system is set to sleep; if the started system is not matched with the acquired display information, the display information can not be switched, a menu of wake-up options can be generated on the display panel, and whether to wake up is determined based on the selection of whether to wake up by a user. Of course, the wake-up can also be performed directly without selection.

The system handoff procedure is illustrated in conjunction with fig. 10 as follows:

the switching mode of the system may include automatic switching and manual switching, and the automatic switching needs to determine whether the foreground system is abnormal, where the abnormal situation is described above, and will not be described herein. While the manual switching does not need to be abnormal, but only considers the operation of the user, specifically,

In the automatic switching mode, whether the foreground system is abnormal or not can be judged, if the foreground system is abnormal, the actual state of the background system is judged, and if the actual state is started, the background system can be directly switched to the foreground system; if the actual state of the background system is not started but is dormant, reminding the wake-up, if a wake-up instruction is received, waking up the background system, switching to the foreground system, and if the wake-up instruction is not received, not operating. If the actual state of the background system is not started and dormant, but is closed, the background system is started if a starting instruction is received, the background system is switched to the foreground system, and if the starting instruction is not received, no operation is performed.

In the manual switching mode, the steps performed after the abnormality is present may be performed after the switching command is received, and details thereof will not be described herein.

Shutdown

At shutdown, depending on the state of the foreground and background systems, in some embodiments of the present disclosure, the display driver board 4 is further configured to:

when a shutdown signal is received, the state of the background system can be judged:

when the actual state of the background system is off, the foreground system may be turned off, and the power supply circuit 5 may be stopped to supply power, thereby turning off the display device.

When the actual state of the background system is dormant, if an instruction for starting the background system is received, closing the foreground system, starting the background system and switching to the foreground system; if the instruction of not starting the background system is received, the foreground system and the display panel 1 are turned off, for example, the backlight module 12 of the display panel 1 is turned off, so that the display device is in a low-power-consumption dormant state.

When the actual state of the background system is started, if a signal for closing the background system is received, the foreground system and the background system are closed, the power supply of the power supply circuit 5 is stopped, and the display device is closed. And if the signal of not closing the background system is received, closing the foreground system and switching the background system into a new foreground system.

The following is an exemplary description of a shutdown-based process in connection with fig. 11:

after receiving the shutdown instruction, judging the actual state of the background system, if the background system is in a starting state, judging whether the instruction of switching the system is received, if so, switching the background system into the foreground system, and if not, shutting down.

If the background system is in a dormant state, judging whether an instruction for waking up the background system is received, if so, judging whether an instruction for switching the system is received, if so, waking up the background system and switching the background system into the foreground system, and if not, shutting down. If the instruction of waking up the background system is received but the instruction of switching the system is not received, the system can be shut down or the actual state can be maintained.

If the background system is in a closed state, judging whether an instruction for starting the background system is received, if so, judging whether an instruction for switching the system is received, if so, starting the background system and switching the background system into the foreground system, and if not, shutting down. If the instruction for starting the background system is received but the instruction for switching the system is not received, the system can be shut down or the actual state can be maintained.

Further, as shown in fig. 7, in some embodiments of the present disclosure, the display device may further include a power control circuit, which may include a first resistor R1, a second resistor R2, a capacitor C, a unidirectional conductive element D, a first transistor Q1, a second transistor Q2, and a third transistor Q3;

the first polar plate of the capacitor C is connected with the display power supply output interface, and the second polar plate is connected with a reference potential;

the first end of the first resistor R1 is connected with the control end of the first transistor Q1, and the second end is connected with the first polar plate of the capacitor C. The first end of the second resistor R2 is connected with the first polar plate of the capacitor C, and the second end is connected with the control end of the second transistor Q2. The unidirectional conductive element D may be a diode, an input terminal of which is connected to the first terminal of the first resistor R1 and the control terminal of the first transistor Q1, and an output terminal of which is connected to the backlight power interface. The first pole of the first transistor Q1 is connected with the display power output interface, so as to be connected with the power supply of the liquid crystal display module, and the second pole is connected with the reference potential. The control end of the second transistor Q2 is connected with the control end of the third transistor Q3; a first pole of the second transistor Q2 is connected with a first system power interface, and a second pole is connected with a reference potential; the first pole of the third transistor Q3 is connected to the second system power interface, and the second pole is connected to the reference potential. The reference potential may be a ground potential.

The power supply control circuit and the power supply circuit 5 may be integrated in a board, and the power supply control circuit may be integrated in the display driving board 4, so long as the connection relationship described above is satisfied.

The principle of the power supply control circuit is described below:

the capacitor C can be used for delaying the power-down time of 5V voltage of the display power output interface, and maintaining the power-down time of the control end of the first transistor Q1 to be later than that of the backlight power interface, so that the abnormal power-down display is avoided.

The first resistor R1 and the second resistor R2 are pull-up resistors, and the first resistor R1 is used for pulling up the voltage of the control end of the first transistor Q1 when the display power supply is started, so that the first transistor Q1 is closed, and the normal output of the display power supply output interface is ensured; the second resistor R2 is used for pulling up the voltages of the control ends of the second transistor Q2 and the third transistor Q3 when the display power output interface is started, so that the second transistor Q2 and the third transistor Q3 are turned off, and the display power output interface is ensured to output.

The unidirectional conductive element D can be used to cut off the output of the backlight power interface, so as to avoid the excessive voltage of the control end of the first transistor Q1, and simultaneously when the voltage is lower than the 5V voltage of the display power output interface after the backlight power interface is powered down, the voltage of the control end of the first transistor Q1 can be quickly pulled down.

The first transistor Q1 is used for controlling the power-down of the display power output interface, the first transistor Q1 is conducted, and the display driving backboard can rapidly complete discharging.

The second transistor Q2 is used to control the first system board 2 to power down, the second transistor Q2 is turned on, and the first system board 2 can rapidly complete discharging.

The third transistor Q3 is used to control the second system board 3 to be powered down, the third transistor Q3 is turned on, and the third transistor Q3 can rapidly complete discharging.

The embodiment of the disclosure further provides a terminal device, where the terminal device may include the display device of any embodiment, and the specific content and the beneficial effects of the display device may refer to the embodiment of the display device and are not described herein. The terminal equipment of the present disclosure may be a conference machine, or may be a device with an image display function, such as a television, a tablet computer, or the like.

The embodiments of the present disclosure further provide a control method of a display device, where the display device is a display device according to any of the foregoing embodiments, and specific content and beneficial effects of the display device may refer to the embodiments of the display device, which are not described herein again. The control method of the present disclosure may include:

The first system and the second system can be controlled by the display driving board to be started in a set starting mode, one started system is used as a foreground system, and the other started system is used as a background system; in a start-up mode, at least one of the first system and the second system is started up.

The foreground system is a system for controlling the display panel to display images, and the background system does not participate in displaying images. For example, if both the first system and the second system are activated, the foreground system may be one of the first system and the second system, and the background system may be the other. There is only one foreground system at the same time.

Such inactivity may include shutdown and hibernation.

In some embodiments of the present disclosure, the control method of the present disclosure may further include: the actual state of the first system and the second system can be acquired by the display drive board, and control is performed according to the actual state, specifically:

The target state includes one of startup, shutdown, and hibernation.

The above-mentioned designated mode may be manually set, for example, a multi-level menu for performing system setting may be generated on the display panel, where the multi-level menu includes a main menu, a system state submenu, a first start submenu and a second start submenu, where the main menu may include three options of system state setting, a first system control and a second system control, the system state submenu under the system state setting includes a first system and a second system both start option (a first start mode), and the first start submenu under the first system start option includes a second system shutdown, a second system dormancy and a second system delay start; the second start submenu under the second system start option includes a first system shutdown, a first system hibernate, and a second system delay start. The setting of the first to third start modes described above can be achieved by selection of the options of the main menu, the system state submenu, the first start submenu, and the second start submenu.

In some embodiments of the present disclosure, the control method of the present disclosure may further include:

Upon shutdown, depending on the state of the foreground and background systems, in some embodiments of the present disclosure, the display driver board is further configured to:

when the actual state of the background system is closed, the foreground system can be closed, the power supply of the power supply circuit is stopped, and the display device is closed.

When the actual state of the background system is dormant, if an instruction for starting the background system is received, closing the foreground system, starting the background system and switching to the foreground system; if the instruction of not starting the background system is received, the foreground system and the display panel are closed, for example, a backlight module of the display panel is closed, so that the display device is in a low-power-consumption dormant state.

When the actual state of the background system is started, if a signal for closing the background system is received, the foreground system and the background system are closed, the power supply of the power supply circuit is stopped, and the display device is closed. And if the signal of not closing the background system is received, closing the foreground system and switching the background system into a new foreground system.

Details of the above control method have been described in the embodiments of the display device, and are not described herein.

It should be noted that although the various steps of the control method of the present disclosure are depicted in the drawings in a particular order, this does not require or imply that the steps must be performed in that particular order or that all of the illustrated steps be performed in order to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step to perform, and/or one step decomposed into multiple steps to perform, etc.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims

1. A display device, comprising:

a display panel;

a first system board configured with a first system, and a second system board; the second system board is configured with a second system different from the first system;

A display driving board configured to control the first system and the second system to be started in a set starting mode, wherein one of the started systems is used as a foreground system, and the other system is used as a background system; in the start-up mode, at least one of the first system and the second system is started up;

2. The display device according to claim 1, wherein the activation modes include a first activation mode, a second activation mode, and a third activation mode;

the disabling includes powering off and hibernating.

3. The display device according to claim 1, wherein the activation modes include a first activation mode, a second activation mode, and a third activation mode;

the disabling includes powering off and hibernating.

4. A display device according to claim 3, wherein the display drive board is further configured to:

the target state includes one of startup, shutdown, and hibernation.

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

the target state includes one of startup, shutdown, and hibernation.

6. The display device of claim 5, wherein the display driver board comprises a display driver chip and a power input interface, a display output interface, a first display input interface, a second display input interface, a first system control interface, and a second system control interface connected to the driver chip;

the power input interface is connected with the power circuit;

The display output interface is connected with the display panel;

7. The display device of claim 6, wherein the first system control interface comprises a first sub-interface and a second sub-interface; the second system control interface comprises a third sub-interface and a fourth sub-interface;

8. The display device of claim 6, wherein the display panel comprises a liquid crystal display module and a backlight module; the display output interface is connected with the liquid crystal display module; the power supply circuit is also used for providing power supply for the backlight module;

9. The display device of claim 6, wherein the display drive board is further configured to:

10. The display device according to claim 1, wherein the display driving board is further configured to: when a shutdown signal is received and the actual state of the background system is shutdown, closing the foreground system and stopping the power supply of the power supply circuit;

11. The display device of claim 8, wherein the power circuit comprises a display power output interface, a backlight power interface, a first system power interface, and a second system power interface; the display power output interface is connected with the display power input interface; the backlight power interface is connected with the backlight module; the first system power interface is connected with the first system board, and the second system power structure is connected with the second system board;

12. The display device of claim 6, wherein the first system board comprises a first host chip, and a first memory chip, a first display output interface, a first control interface, and a first power interface connected to the first host chip; the first display output interface is connected with the first display input interface, the first control interface is connected with the first system control interface, and the first power supply interface is connected with the power supply circuit;

13. A terminal device comprising a display device according to any one of claims 1-12.

14. A control method of a display device, characterized in that the display device is the display device according to any one of claims 1 to 12; the control method comprises the following steps:

15. The control method according to claim 14, wherein the start-up mode includes a first start-up mode, a second start-up mode, and a third start-up mode;

the disabling includes powering off and hibernating.