CN111399922A - Dual-system display device and system - Google Patents
Dual-system display device and system Download PDFInfo
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- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/4401—Bootstrapping
- G06F9/4411—Configuring for operating with peripheral devices; Loading of device drivers
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4004—Coupling between buses
- G06F13/4022—Coupling between buses using switching circuits, e.g. switching matrix, connection or expansion network
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
- G06F13/4081—Live connection to bus, e.g. hot-plugging
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- G—PHYSICS
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
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- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
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Abstract
The invention discloses a dual-system display device and a dual-system display system, which are used for solving the technical problem that an interactive intelligent panel carrying dual systems in the prior art can not rapidly and stably display the contents in the dual systems, and the display device comprises: the intelligent control system comprises a first operating system, a second operating system, a display screen and a nonvolatile memory, wherein the display screen and the nonvolatile memory are connected with the intelligent control module and used for storing extended display identification data EDID of the display screen; and the intelligent control module is connected with the first operating system and the second operating system and used for reading the EDID from the nonvolatile memory when the first operating system is started, and after receiving a control signal sent by the second operating system, the display data channel DDC and the hot plug HPD of the first operating system are respectively communicated with the DDC and the HPD of the second operating system, so that the second operating system forwards the display data sent by the first operating system to the display screen.
Description
Technical Field
The invention relates to the field of internet, in particular to a dual-system display device and system.
Background
Interactive Intelligent Panel (IIP), commonly known as large screen, is currently widely used in classrooms and conference rooms.
The interactive intelligent Panel is an integrated device which controls and realizes man-machine interaction operation on contents displayed on a Display Panel, such as a liquid crystal Display (L iquid Display, L CD), a light Emitting Diode (L light Emitting Diode, L ED) Display screen and a Plasma Display Panel (PDP) through a touch technology.
Generally, an interactive smart tablet mounts a Windows system and an android system, and generally, the Windows system operates in an Open Pluggable Specification (OPS) of the interactive smart tablet, and the OPS is a standardized digital signage interface Specification established by Intel and a display manufacturer. The OPS is internally composed of an X86-structured mini PC, adopts a processor, is provided with a memory, a hard disk, a plurality of input and output interfaces and a Windows operation interface, and has the size of 200mm X119 mm X30 mm.
However, after the dual system in the interactive smart tablet is started, the display screen sometimes cannot display the content that the Windows system needs to display, but only can hear the sound played by the Windows system, so that the user cannot show the teaching courseware prepared in advance, which not only delays the courseware time, but also reduces the work efficiency.
In view of this, how to quickly and stably display the contents in the dual system by the interactive smart tablet with the dual system becomes an urgent technical problem to be solved.
Disclosure of Invention
The invention provides a dual-system display device and system, which are used for solving the technical problem that an interactive intelligent panel carrying dual systems cannot rapidly and stably display contents in the dual systems in the prior art.
In a first aspect, to solve the foregoing technical problem, an embodiment of the present invention provides a dual-system display device, where the display device includes a first operating system, a second operating system, and a display screen, and the display device further includes:
the non-volatile memory is connected with the intelligent control module and used for storing extended display identification data EDID of the display screen;
and the intelligent control module is connected with the first operating system and the second operating system and used for reading the EDID from the nonvolatile memory when the first operating system is started, and after receiving the control signal sent by the second operating system, the display data channel DDC and the hot plug HPD of the first operating system are respectively communicated with the DDC and the HPD of the second operating system, so that the second operating system forwards the display data sent by the first operating system to the display screen.
By arranging the intelligent control module and the nonvolatile memory between the first operating system and the second operating system, the first operating system can read EDID from the nonvolatile memory when starting up, the display card of the first operating system can work, and after the second operating system is started, the DDC and the HPD of the first operating system are respectively conducted with the DDC and the HPD of the second operating system by sending control signals to the intelligent control module, so that the second operating system can normally receive display data sent by the first operating system and transmit the display data to the display screen for displaying, and the display screen can rapidly and stably display the data in the respective display cards of the two operating systems.
Optionally, the intelligent control module includes:
a first end of the first switch is connected with an HPD pin of the first operating system, a second end of the first switch is connected with a high level end, and a third end of the first switch is connected with an HPD pin of the second operating system; the first end and the second end of the first change-over switch are conducted in the initial state of the first change-over switch, and the first end and the third end of the first change-over switch are conducted after the control signal is received;
a first end of the second switch is connected with a pin corresponding to the DDC of the first operating system, a second end of the second switch is connected with the nonvolatile memory, and a third end of the second switch is connected with a pin corresponding to the DDC of the second operating system; the first end and the second end of the second change-over switch are conducted in the initial state of the second change-over switch, and the second end and the third end of the second change-over switch are conducted after the control signal is received;
and the control signal end is used for receiving the control signal.
Optionally, the control signal is sent to the intelligent control module by the second operating system after the second operating system is started.
Optionally, the EDID data in the nonvolatile memory is data burned in advance.
Optionally, the EDID data in the nonvolatile memory is data written after the initialization of the second operating system is completed.
Optionally, the non-volatile memory comprises: ROM, PROM, EAROM, EPROM, EEPROM, and FLASH memory.
Optionally, the method further comprises:
after the first operating system is started, if the EDID is not read by the first operating system, the first operating system sends alarm information.
Optionally, if the first operating system does not read the EDID data, the method further includes:
the first operating system reads historical EDID data from the first operating system.
Optionally, the display device is any one of a computer, a television, an interactive tablet, and a display device.
Optionally, the first operating system is a Windows system, and the second operating system is an android system.
In a second aspect, an embodiment of the present invention provides a dual-system display system, including:
the first operating system reads extended display identification data EDID from a nonvolatile memory after the first operating system is started, so that a display card of the first operating system starts to work;
the second operating system sends a control signal to the intelligent control module after the second operating system is started, so that a display data channel DDC and a hot plug HPD of the first operating system are respectively switched to the DDC and the HPD of the second operating system, and the second operating system forwards the display data of the first operating system to the display screen;
the intelligent control module is connected with the first operating system and the second operating system and used for reading the EDID from the nonvolatile memory when the first operating system is started up, and conducting the DDC and the HPD of the first operating system and the DDC and the HPD of the second operating system respectively after receiving the control signal;
and the display screen is connected with the second operating system and used for displaying the data in the respective display card of the first operating system or the second operating system, which is sent by the second operating system.
Through the technical solutions in one or more of the above embodiments of the present invention, the embodiments of the present invention have at least the following technical effects:
in the embodiment provided by the invention, the intelligent control module and the nonvolatile memory are arranged between the first operating system and the second operating system, so that the first operating system can read the EDID from the nonvolatile memory when starting up, the display card of the first operating system can work, and after the second operating system is started, the DDC and the HPD of the first operating system are respectively conducted with the DDC and the HPD of the second operating system by sending control signals to the intelligent control module, so that the second operating system can normally receive the display data sent by the first operating system and forward the display data to the display screen for displaying, and the display screen can rapidly and stably display the data in the display cards of the two operating systems.
Drawings
FIG. 1 is a schematic diagram of an HDMI system;
fig. 2 is a schematic structural diagram of a dual-system display device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an intelligent control module according to an embodiment of the present invention;
fig. 4 is a schematic connection diagram of an intelligent control module in an initial state according to an embodiment of the present invention;
fig. 5 is a schematic connection diagram of the intelligent control module after receiving the control signal according to the embodiment of the present invention.
Detailed Description
The embodiment of the invention provides a dual-system display device and a dual-system display system, which aim to solve the technical problem that an interactive intelligent panel carrying dual systems cannot rapidly and stably display contents in the dual systems in the prior art.
In order to solve the technical problems, the general idea of the embodiment of the present application is as follows:
the dual-system display device comprises a first operating system, a second operating system, a display screen, a nonvolatile memory and an extended display identification data EDID, wherein the nonvolatile memory is connected with an intelligent control module and is used for storing extended display identification data EDID of the display screen; the intelligent control module is connected with the first operating system and the second operating system and used for reading EDID from the nonvolatile memory when the first operating system is started, so that the display card of the first operating system can work, and after receiving a control signal sent by the second operating system, the display data channel DDC and the hot plug HPD of the first operating system are respectively communicated with the DDC and the HPD of the second operating system, so that the second operating system can normally receive the display data sent by the first operating system and forward the display data to the display screen for displaying, and the display screen can rapidly and stably display the data in the respective display cards of the two operating systems.
In the above scheme, the intelligent control module and the nonvolatile memory are arranged between the first operating system and the second operating system, so that the first operating system can read the EDID from the nonvolatile memory when starting up, the display card of the first operating system can work, and after the second operating system is started, the DDC and the HPD of the first operating system are respectively conducted with the DDC and the HPD of the second operating system by sending control signals to the intelligent control module, so that the second operating system can normally receive the display data sent by the first operating system and forward the display data to the display screen for displaying, and the display screen can rapidly and stably display the data in the display cards of the two operating systems.
In order to better understand the technical solutions of the present invention, the following detailed descriptions of the technical solutions of the present invention are provided with the accompanying drawings and the specific embodiments, and it should be understood that the specific features in the embodiments and the examples of the present invention are the detailed descriptions of the technical solutions of the present invention, and are not limitations of the technical solutions of the present invention, and the technical features in the embodiments and the examples of the present invention may be combined with each other without conflict.
In order to make the technical solutions of the present application fully understood by those skilled in the art, the knowledge related to the present solutions will now be briefly described:
please refer to fig. 1, which is a schematic diagram of an HDMI system.
In the system, a High Definition Multimedia Interface (HDMI) transmitter transmits video data and audio data to an HDMI receiver through an HDMI Interface, and the HDMI receiver transmits the video data and audio data to a display screen for display.
The HDMI interface includes: 4 Transition Minimized Differential Signaling (TMDS) channels, mainly used for transmitting data, one Display Data Channel (DDC) and Consumer Electronics Control (CEC) line.
DDC is a bus standard whose basic function is to transmit electronic archive information of the display, such as receivable line frequency field frequency range, manufacturer, date of manufacture, product serial number, product model, standard display mode and its parameters, supported DDC standard category, EDID version information, etc. The high-version DDC standard bus can also allow the computer host to directly adjust basic parameters of the display, such as brightness, contrast, the magnitude of the line field amplitude, the line field center position, color temperature parameters and the like. The sending end can read EDID data in the receiving end through the DDC channel, acquire information of the receiving end, confirm the setting function displayed by the receiving end and determine the format of audio and video data transmitted between the sending end and the receiving end.
The CEC channel is an optional channel, and through the CEC channel, advanced control functions between some audio and video devices can be realized, such as supporting bidirectional communication between a video source and a digital television, and realizing functions of simultaneously starting up by pressing a single key, automatically powering on, automatically routing a signal, remotely controlling and the like.
The HDMI also comprises a Hot Plug Detect (HPD) pin, and the HDMI receiver can Detect whether an HDMI transmitter is connected through the HPD, and determine whether the HDMI transmitter initiates reading of External Display Identification Data (EDID), and determine whether the HDMI transmitter starts to transmit TMDS signals.
The inventor finds that when the HDMI is applied to a display device with dual systems for teaching, due to inconsistent start-up completion time of the two systems, interactive handshake between the two systems fails, so that the display device often fails to display data sent by an HDMI sending end, and a display screen in the display device cannot stably and quickly display data required to be displayed by the dual systems.
To solve this problem, the inventors have adopted the following technical solutions.
Referring to fig. 2, an embodiment of the present invention provides a dual-system display device, where the display device includes a first operating system 11, a second operating system 12, and a display 13, and the display device further includes:
and the nonvolatile memory 14 is connected with the intelligent control module 15 and is used for storing the extended display identification data EDID of the display screen 13.
The smart control module 15 is connected to the first operating system 11 and the second operating system 12, and configured to read the EDID from the nonvolatile memory 14 when the first operating system 11 is powered on, and after receiving a control signal sent by the second operating system 12, conduct the display data channel DDC and the hot plug HPD of the first operating system 11 with the DDC and the HPD of the second operating system 12, respectively (indicated by dashed lines in fig. 2), so that the second operating system 12 forwards the display data sent by the first operating system 11 to the display 13.
In the embodiment provided by the present invention, the first operating system 11 serves as an HDMI transmitter, and the second operating system 12 serves as an HDMI receiver.
The first operating system 11 may be a Windows system, and when the first operating system 11 is a Windows system, it runs on the OPS. Because the intelligent control module 15 conducts the HPD pin corresponding to the Window system with the high-level end and conducts the DDC pin corresponding to the Window system with the nonvolatile memory 14 in the initial state, the DDC channel corresponding to the Window system can read EDID from the nonvolatile memory 14 after the Window system is started, and the TMDS signal transmitting circuit in the graphics card corresponding to the Window system starts to operate after the read is successful, so that the Window system can normally and directly output TMDS signals to the second operating system 12(HDMI receiving end), and the phenomena of abnormal display images and sound caused by interactive handshake failure due to the fact that the second operating system 12 is not started up are avoided.
When the first operating system 11 is a Windows system, the second operating system 12 may be an android system, and after the android system is started, the control signal is sent to the intelligent control module 15, so that the DDC and the hot plug HPD of the Windows system are respectively switched to the DDC and the HPD of the android system (which is equivalent to performing a hot plug on the HDMI of the Windows system), and thus the connection mode of the traditional HDMI sending end and receiving end is switched to, and the Windows system can normally read the EDID of the android system after hot plug, so that the TMDS signal sending circuit in the display card corresponding to the Windows system starts to operate, and the android system receives and decodes the TMDS signal and transmits the signal to the display screen 13, so that the display screen 13 can quickly and stably display data to be displayed by the dual systems.
The first operating system 11 and the second operating system 12 are different systems. The first operating System 11 is not limited to a Windows System, and the second operating System is not limited to an android System, but they may be another operating System, such as an IOS System (Input Output System), a hong meng System, or the like.
Referring to fig. 3, a schematic structural diagram of an intelligent control module according to an embodiment of the present invention is shown, where the intelligent control module 15 includes:
a first switch 151, a first end 1511 of the first switch 151 is connected to the HPD pin of the first operating system 11, a second end 1512 of the first switch 151 is connected to the high-level end, and a third end 1513 of the first switch 151 is connected to the HPD pin of the second operating system 12; in an initial state of the first switch 151, the first terminal 1511 and the second terminal 1512 of the first switch 151 are turned on, and after receiving the control signal, the first terminal 1511 and the third terminal 1513 of the first switch 151 are turned on. Fig. 4 is a schematic connection diagram of an intelligent control module in an initial state according to an embodiment of the present invention.
A first end 1521 of the second switch 152 is connected to a pin corresponding to the DDC of the first operating system 11, a second end 1522 of the second switch 152 is connected to the nonvolatile memory 14, and a third end 1523 of the second switch 152 is connected to a pin corresponding to the DDC of the second operating system 12; in an initial state of the second switch 152, the first end 1521 and the second end 1522 of the second switch 152 are turned on, and the second end 1522 and the third end 1523 of the second switch 152 are turned on after receiving the control signal. Fig. 5 is a schematic connection diagram of the intelligent control module according to the embodiment of the present invention after receiving the control signal.
And a control signal terminal 153 for receiving a control signal of the second operating system 12.
By connecting the HPD pin of the first operating system 11 with the high-level terminal through the first switch 151 and connecting the pin corresponding to the DDC of the first operating system 11 with the nonvolatile memory 14 storing the EDID through the second switch 152 in the initial state, the first operating system 11 can read the EDID when the computer is turned on, and the graphics card of the first operating system 11 can normally operate. After the intelligent control module 15 receives the control signal sent by the second operating system 12, the first switch 151 and the second switch 152 respectively switch the HPD and the DDC of the first operating system 11 to the HPD and the DDC of the second operating system 12, so that normal HDMI communication can be established between the first operating system 11 and the second operating system 12, the second operating system 12 can receive the display data sent by the first operating system 11, and forward the display data to the display 13, and the display 13 can rapidly and stably display the data to be displayed by the dual systems.
In the embodiment provided by the present invention, the first switch 151 and the second switch 152 may be a relay, a transistor, a thyristor, and the like, and are not limited in particular.
It should be noted that the control terminals of the first switch 151 and the second switch 152 are both connected to the control signal terminal 153, that is, the first switch 151 and the second switch 152 are both controlled by the control signal, and they synchronously perform path switching.
In the embodiment provided by the present invention, the control signal is sent to the intelligent control module 15 by the second operating system 12 after the second operating system 12 is started.
In the embodiment provided by the present invention, the EDID data in the nonvolatile memory 14 may be data burned into it in advance, or may be data written by the second operating system 12 after the initialization of the second operating system 12 is completed.
Since the non-volatile memory 14 is selected to store the EDID, the EDID can be permanently stored therein only by writing it once to the non-volatile memory 14.
In the embodiment provided by the present invention, the nonvolatile memory 14 includes: read-only memory (ROM), Programmable Read-only memory (PROM), Electrically alterable Read-only memory (EAROM), erasable Programmable Read-only memory (EPROM), Electrically erasable Programmable Read-only memory (EEPROM), and Flash memory (Flash memory).
In an embodiment provided by the present invention, the display device further includes:
after the first operating system 11 is started, if the first operating system 11 does not read the EDID, the first operating system 11 sends alarm information.
By enabling the first operating system 11 to send out alarm information when the EDID is not read, the user can timely know the reason why the display screen 13 cannot normally display, so that faults can be timely and specifically eliminated, the waiting time of the user is shortened, and the working efficiency is improved.
For example, when the nonvolatile memory 14 fails to read the EDID, the first operating system 11 may send an alarm message, which may be a voice prompt message, an indicator light indication message, or the like, without limitation.
If the first operating system 11 does not read the EDID data, the first operating system 11 may also read data from the historical EDID stored in its own system in advance, so that the graphics card of the first operating system 11 can operate normally.
In the embodiments provided by the present invention, the display device may be any one of a computer, a television, an interactive tablet, and a display apparatus.
Based on the same inventive concept, an embodiment of the present invention provides a dual system display system, including:
and the first operating system reads the extended display identification data EDID from the nonvolatile memory after the first operating system is started, so that the display card of the first operating system starts to work.
And the second operating system sends a control signal to the intelligent control module after the second operating system is started, so that the display data channel DDC and the hot plug HPD of the first operating system are respectively switched to the DDC and the HPD of the second operating system, and the second operating system forwards the display data of the first operating system to the display screen.
And the intelligent control module is connected with the first operating system and the second operating system and used for reading the EDID from the nonvolatile memory when the first operating system is started up and respectively conducting the DDC and the HPD of the first operating system and the DDC and the HPD of the second operating system after receiving the control signal.
And the display screen is connected with the second operating system and used for displaying the data in the respective display card of the first operating system or the second operating system, which is sent by the second operating system.
The structure of the specific intelligent control module can be referred to the description of the previous device part, and is not described in detail herein.
In the embodiment provided by the invention, the intelligent control module and the nonvolatile memory are arranged between the first operating system and the second operating system, so that the first operating system can read the EDID from the nonvolatile memory when starting up, the display card of the first operating system can work, and after the second operating system is started, the DDC and the HPD of the first operating system are respectively conducted with the DDC and the HPD of the second operating system by sending control signals to the intelligent control module, so that the second operating system can normally receive the display data sent by the first operating system and forward the display data to the display screen for displaying, and the display screen can rapidly and stably display the data in the display cards of the two operating systems.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (11)
1. A dual system display device, the display device includes a first operating system and a second operating system, and a display screen, characterized by further comprising:
the non-volatile memory is connected with the intelligent control module and used for storing extended display identification data EDID of the display screen;
and the intelligent control module is connected with the first operating system and the second operating system and used for reading the EDID from the nonvolatile memory when the first operating system is started, and after receiving the control signal sent by the second operating system, the display data channel DDC and the hot plug HPD of the first operating system are respectively communicated with the DDC and the HPD of the second operating system, so that the second operating system forwards the display data sent by the first operating system to the display screen.
2. The display device of claim 1, wherein the smart control module comprises:
a first end of the first switch is connected with an HPD pin of the first operating system, a second end of the first switch is connected with a high level end, and a third end of the first switch is connected with an HPD pin of the second operating system; the first end and the second end of the first change-over switch are conducted in the initial state of the first change-over switch, and the first end and the third end of the first change-over switch are conducted after the control signal is received;
a first end of the second switch is connected with a pin corresponding to the DDC of the first operating system, a second end of the second switch is connected with the nonvolatile memory, and a third end of the second switch is connected with a pin corresponding to the DDC of the second operating system; the first end and the second end of the second change-over switch are conducted in the initial state of the second change-over switch, and the second end and the third end of the second change-over switch are conducted after the control signal is received;
and the control signal end is used for receiving the control signal.
3. The display device of claim 1 or 2, wherein the control signal is sent by the second operating system to the intelligent control module after the second operating system is started.
4. The display device according to claim 1, wherein the EDID data in the nonvolatile memory is data burned in advance.
5. The display device according to claim 1, wherein the EDID data in the nonvolatile memory is data written after initialization of the second operating system is completed.
6. The display device according to claim 4 or 5, wherein the nonvolatile memory includes: ROM, PROM, EAROM, EPROM, EEPROM, and Flash memory.
7. The display device of claim 1, further comprising:
after the first operating system is started, if the EDID is not read by the first operating system, the first operating system sends alarm information.
8. The display apparatus according to claim 7, further comprising, if the first operating system does not read the EDID data:
the first operating system reads historical EDID data from the first operating system.
9. A display device as claimed in any one of claims 1-2 or 4-5 or 7-8, wherein the display device is any one of a computer, a television, an interactive tablet, a display device.
10. The display device of any one of claims 1-2, 4-5, or 7-8, wherein the first operating system is a Windows system and the second operating system is an android system.
11. A dual system display system, comprising:
the first operating system reads extended display identification data EDID from a nonvolatile memory after the first operating system is started, so that a display card of the first operating system starts to work;
the second operating system sends a control signal to the intelligent control module after the second operating system is started, so that a display data channel DDC and a hot plug HPD of the first operating system are respectively switched to the DDC and the HPD of the second operating system, and the second operating system forwards the display data of the first operating system to the display screen;
the intelligent control module is connected with the first operating system and the second operating system and used for reading the EDID from the nonvolatile memory when the first operating system is started up, and conducting the DDC and the HPD of the first operating system and the DDC and the HPD of the second operating system respectively after receiving the control signal;
and the display screen is connected with the second operating system and used for displaying the data in the respective display card of the first operating system or the second operating system, which is sent by the second operating system.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111857853A (en) * | 2020-07-29 | 2020-10-30 | 中科方德软件有限公司 | Dual-system seamless switching method |
| CN113590072A (en) * | 2021-08-11 | 2021-11-02 | 深圳市皓丽智能科技有限公司 | Split screen display method and device |
| CN114697737A (en) * | 2020-12-29 | 2022-07-01 | 深圳Tcl新技术有限公司 | Display data configuration method and device, display equipment and storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008076653A (en) * | 2006-09-20 | 2008-04-03 | Sanyo Electric Co Ltd | Ddc circuit of display device, and liquid crystal projector |
| CN101282444A (en) * | 2008-03-18 | 2008-10-08 | 青岛海信电器股份有限公司 | Receiving switching mechanism, TV set containing the same |
| CN102256091A (en) * | 2010-05-21 | 2011-11-23 | 索尼公司 | Data transmission device, data reception device, data transmission method, and data reception method |
| CN104461603A (en) * | 2013-09-25 | 2015-03-25 | 联想(北京)有限公司 | Information processing method and electronic equipment |
| CN104572375A (en) * | 2015-01-23 | 2015-04-29 | 合肥联宝信息技术有限公司 | Method and device for diagnosing computer through display interface |
| CN106201383A (en) * | 2014-10-16 | 2016-12-07 | 亚信电子股份有限公司 | Many main frames common display expands electronic installation and the system of display identification data |
-
2020
- 2020-03-17 CN CN202010185632.5A patent/CN111399922B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008076653A (en) * | 2006-09-20 | 2008-04-03 | Sanyo Electric Co Ltd | Ddc circuit of display device, and liquid crystal projector |
| CN101282444A (en) * | 2008-03-18 | 2008-10-08 | 青岛海信电器股份有限公司 | Receiving switching mechanism, TV set containing the same |
| CN102256091A (en) * | 2010-05-21 | 2011-11-23 | 索尼公司 | Data transmission device, data reception device, data transmission method, and data reception method |
| CN104461603A (en) * | 2013-09-25 | 2015-03-25 | 联想(北京)有限公司 | Information processing method and electronic equipment |
| CN106201383A (en) * | 2014-10-16 | 2016-12-07 | 亚信电子股份有限公司 | Many main frames common display expands electronic installation and the system of display identification data |
| CN104572375A (en) * | 2015-01-23 | 2015-04-29 | 合肥联宝信息技术有限公司 | Method and device for diagnosing computer through display interface |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111857853A (en) * | 2020-07-29 | 2020-10-30 | 中科方德软件有限公司 | Dual-system seamless switching method |
| CN111857853B (en) * | 2020-07-29 | 2023-05-02 | 中科方德软件有限公司 | Dual-system seamless switching method |
| CN114697737A (en) * | 2020-12-29 | 2022-07-01 | 深圳Tcl新技术有限公司 | Display data configuration method and device, display equipment and storage medium |
| CN114697737B (en) * | 2020-12-29 | 2024-02-06 | 深圳Tcl新技术有限公司 | Display data configuration method, device, display equipment and storage medium |
| CN113590072A (en) * | 2021-08-11 | 2021-11-02 | 深圳市皓丽智能科技有限公司 | Split screen display method and device |
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|---|---|
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