CN113064543A - Signal processing method, system and device of spliced screen and storage medium - Google Patents

Signal processing method, system and device of spliced screen and storage medium Download PDF

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Publication number
CN113064543A
CN113064543A CN202110369304.5A CN202110369304A CN113064543A CN 113064543 A CN113064543 A CN 113064543A CN 202110369304 A CN202110369304 A CN 202110369304A CN 113064543 A CN113064543 A CN 113064543A
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signal
display screen
output interface
signal output
touch
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CN202110369304.5A
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CN113064543B (en
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陈思超
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Guangzhou Shiyuan Electronics Thecnology Co Ltd
Guangzhou Shirui Electronics Co Ltd
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Guangzhou Shiyuan Electronics Thecnology Co Ltd
Guangzhou Shirui Electronics Co Ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • 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
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
    • G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
    • G—PHYSICS
    • 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
    • G06F13/4004—Coupling between buses
    • G06F13/4022—Coupling between buses using switching circuits, e.g. switching matrix, connection or expansion network
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • 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
    • G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
    • G06F3/1446—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display display composed of modules, e.g. video walls
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/765—Interface circuits between an apparatus for recording and another apparatus

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Mathematical Physics (AREA)
  • Computer Hardware Design (AREA)
  • User Interface Of Digital Computer (AREA)
  • Position Input By Displaying (AREA)

Abstract

The invention discloses a signal processing method, a signal processing system, a signal processing device and a signal processing storage medium for a spliced screen. Wherein, the method comprises the following steps: acquiring a second touch signal, wherein the second touch signal is a touch signal generated by a second display screen; under the condition that the change-over switch is connected to the first signal output interface, controlling the first signal output interface to output a second touch signal to the external equipment, wherein the change-over switch and the first signal output interface are both arranged in the first display screen; and under the condition that the change-over switch is connected with the second signal output interface, controlling the second signal output interface to output a second touch signal to the external equipment, wherein the second signal output interface is arranged in the first display screen. The invention solves the technical problem that the first display screen and the second display screen cannot be independently operated.

Description

Signal processing method, system and device of spliced screen and storage medium
Technical Field
The invention relates to the field of intelligent interactive panels, in particular to a signal processing method, a signal processing system, a signal processing device and a signal processing storage medium for a spliced screen.
Background
At present, when a tiled screen is used, generally, TOUCH devices of a Main screen and an auxiliary screen are commonly connected to a same signal forwarding interface, and then connected to a Main Board of the Main screen, and a TOUCH signal generated by the TOUCH device is processed through the Main Board of the Main screen, fig. 1 is a schematic circuit structure diagram of a Main screen and an auxiliary screen for TOUCH signal transmission according to the prior art, as shown IN fig. 1, when an external signal is input into the Main screen by an external device, a transmission path of the external signal is [ HDMI IN1] - > [ VBO-VBO, VBO-HDMI ] - > [ HDMI SW ] - > auxiliary screen [ Main Board ], at this time, the Main screen and the auxiliary screen display a channel picture of the same external device, and when both the Main screen and the auxiliary screen generate a TOUCH signal, the transmission path of the TOUCH signal of the Main screen is [ uctoh IN ] - [ USB HUB ] - > Main screen [ Main Board ] - > Main screen [ USB OUT ], the transmission path of the TOUCH signal of the auxiliary screen is an auxiliary screen [ TOUCH IN ] - > auxiliary screen [ Main Board ] - > auxiliary screen [ USB OUT ] - > [ USB HUB ] - > Main screen [ Main Board ] - > Main screen [ USB OUT ], that is, two TOUCH devices are simultaneously accessed to the Main screen, but because the Main screen only has one signal output interface Main screen [ USB OUT ], only the TOUCH signals of the Main screen and the auxiliary screen can be simultaneously output at the signal output interface Main screen [ USB OUT ] of the Main screen, so that the problem that the TOUCH signals cannot be independently transmitted between the Main screen and the auxiliary screen is caused, and the problem that independent operation cannot be performed between the Main screen and the auxiliary screen is caused.
Aiming at the problem that independent operation cannot be carried out between the main screen and the auxiliary screen, an effective solution is not provided at present.
Disclosure of Invention
The embodiment of the invention provides a signal processing method, a signal processing system, a signal processing device and a storage medium for a spliced screen, and aims to at least solve the technical problem that independent operation cannot be performed between a first display screen and a second display screen.
According to an aspect of the embodiments of the present invention, there is provided a signal processing system of a tiled screen, the tiled screen including a first display screen and a second display screen, the system further including: the first signal output interface and the second signal output interface are arranged in the first display screen; the first end of the selector switch is connected to the signal output end of the second touch signal, and the second end of the selector switch is connected to the first signal output interface or the second signal output interface, wherein the second touch signal is a touch signal generated by the second display screen; and under the condition that the change-over switch is accessed to the second signal output interface, the second touch signal is controlled to be output to the external equipment through the second signal output interface.
According to another aspect of the embodiments of the present invention, there is also provided a signal processing method for a tiled screen, where the tiled screen includes a first display screen and a second display screen, and the first display screen includes: the signal processing method of the spliced screen comprises a first signal output interface, a second signal output interface and a change-over switch, wherein the signal processing method of the spliced screen comprises the following steps: acquiring a second touch signal, wherein the second touch signal is a touch signal generated by a second display screen; under the condition that the change-over switch is connected to the first signal output interface, controlling the first signal output interface to output a second touch signal to the external equipment, wherein the change-over switch and the first signal output interface are both arranged in the first display screen; and under the condition that the change-over switch is connected with the second signal output interface, controlling the second signal output interface to output a second touch signal to the external equipment, wherein the second signal output interface is arranged in the first display screen.
According to another aspect of the embodiments of the present invention, there is also provided a signal processing apparatus of a tiled screen, including: the acquisition unit is used for acquiring a second touch signal, wherein the second touch signal is a touch signal generated by a second display screen; the first control unit is used for controlling the first signal output interface to output a second touch signal to external equipment under the condition that the change-over switch is connected to the first signal output interface, wherein the change-over switch and the first signal output interface are both arranged in the first display screen; and the second control unit is used for controlling the second signal output interface to output a second touch signal to the external equipment under the condition that the change-over switch is connected to the second signal output interface, wherein the second signal output interface is arranged in the first display screen.
According to another aspect of the embodiments of the present invention, there is also provided a computer-readable storage medium storing a plurality of instructions, the instructions being adapted to be loaded by a processor and to execute the signal processing method of the tiled screen according to the embodiments of the present invention.
According to another aspect of the embodiments of the present invention, there is also provided an intelligent interactive tablet, including: a processor and a memory; the memory stores a computer program, and the computer program is suitable for being loaded by the processor and executing the signal processing method of the spliced screen.
In the embodiment of the invention, a second touch signal is obtained, wherein the second touch signal is a touch signal generated by a second display screen; under the condition that the change-over switch is connected to the first signal output interface, controlling the first signal output interface to output a second touch signal to the external equipment, wherein the change-over switch and the first signal output interface are both arranged in the first display screen; and under the condition that the change-over switch is connected with the second signal output interface, controlling the second signal output interface to output a second touch signal to the external equipment, wherein the second signal output interface is arranged in the first display screen. That is, according to the present invention, by adding the switch and the second signal output interface in the first display screen, when the second display screen generates the second touch signal and transmits the second touch signal to the first display screen, the switch controls the second terminal of the switch to be connected to the first signal output interface or the second signal output interface, when the switch is connected to the first signal output interface, the first signal output interface is controlled to output the second touch signal to the external device, and when the switch is connected to the second signal output interface, the second signal output interface is controlled to output the second touch signal to the external device And then the technical problem that the first display screen and the second display screen cannot be independently operated is solved, and the technical effect that the first display screen and the second display screen can be independently operated is achieved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a schematic circuit structure diagram of a main screen and an auxiliary screen for touch signal transmission according to the prior art;
FIG. 2 is a schematic diagram of a signal processing system for a tiled screen according to an embodiment of the invention;
fig. 3 is a schematic circuit structure diagram of a main screen and an auxiliary screen for touch signal transmission according to an embodiment of the present invention;
FIG. 4 is a flow chart of a signal processing method of a tiled screen according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a signal processing device of a tiled screen according to an embodiment of the invention;
fig. 6 is a schematic structural diagram of an intelligent interactive tablet according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example 1
According to the embodiment of the invention, a signal processing system of a spliced screen is provided.
Fig. 2 is a schematic diagram of a signal processing system of a tiled screen according to an embodiment of the invention. As shown in fig. 2, the signal processing system of the tiled screen may include a first display screen 21 and a second display screen 22, and further includes:
a first signal output interface 23 and a second signal output interface 24 provided in the first display screen 21.
The switch 25 is disposed in the first display 21, a first end of the switch 25 is connected to the signal output end 26 of the second touch signal, and a second end of the switch 25 is connected to the first signal output interface 23 or the second signal output interface 24, where the second touch signal is a touch signal generated by the second display 22.
When the switch 25 is connected to the first signal output interface 23, the second touch signal is controlled to be output to the external device through the first signal output interface 23, and when the switch 25 is connected to the second signal output interface 24, the second touch signal is controlled to be output to the external device through the second signal output interface 24.
In this embodiment, when the external device transmits an external signal to the first display screen 21, the external signal may be transmitted to the second display screen 22 through the first display screen 21, the second display screen 22 may respond to the external signal after receiving the external signal, a second touch signal is generated by the second touch module in the second display screen 22, the second touch signal is transmitted to the first display screen 21 through the second display screen 22, a first end of the switch 25 in the first display screen 21 may be connected to the signal output end 26 of the second touch signal, a second end of the switch 25 may be connected to the first signal output interface 23 or the second signal output interface 24, in a case that the switch 25 is connected to the first signal output interface 23, the second touch signal is output to the external device through the first signal output interface 23, in a case that the switch 25 is connected to the second signal output interface 24, the second touch signal is output to the external device through the second signal output interface 24.
In the above embodiment, after the second touch signal in the second display screen 22 is transmitted to the first display screen 21, the transmission path can be switched to two by the switch 25 in the first display screen 21. Fig. 3 is a schematic circuit structure diagram of touch signal transmission performed by the Main screen and the auxiliary screen according to an embodiment of the present invention, as shown in fig. 3, one of the transmission paths is connected to the signal forwarding interface [ USB HUB ], and is connected to the Main Board [ Main Board ] in the first display screen 21, and then is output from the first signal output interface 23, i.e., the [ USB OUT1] interface, to the external device, and the other transmission path may be directly connected to the second signal output interface 24, i.e., the [ USB OUT2] interface, and is output from the [ USB OUT2] interface to the external device.
For example, when the external device inputs an external signal into the second display screen 22 for displaying, and a touch signal of the second display screen 22 is to be transmitted back to the external device, the external device and the USB OUT2 are connected by a USB cable, because the external signal can be independently displayed by the second display screen 22 at this time, the main board in the first display screen 21 controls the switch [ USB SW ] by a USB CTL signal, and the touch signal of the second display screen 22 is switched to [ USB OUT2] for outputting.
Optionally, in the above embodiment, when the external device transmits the external signal to the first display screen 21, the external signal may also be transmitted to the main board in the first display screen 21, and the main board in the first display screen 21 responds, and the first touch module in the first display screen 21 may generate the first touch signal, and the first touch signal may be forwarded to the main board in the first display screen 21 via the signal forwarding interface, processed by the main board in the first display screen 21, and then output to the external device via the first signal output interface 23, that is, the [ USB OUT1] interface.
For example, as shown IN fig. 3, when the first display screen 21 and the second display screen 22 are IN the copy mode, the Main Board [ Main Board ] IN the first display screen 21 switches the switch [ USB SW ] to the signal forwarding interface [ USB HUB ] through the USB CTL control signal, and at this time, the second TOUCH signal generated by the second TOUCH device [ TOUCH IN ] IN the second display screen 22 is output through [ USB OUT1] together with the first TOUCH signal generated by the first TOUCH device [ TOUCH IN ] IN the first display screen 21.
Optionally, in this embodiment, the first display screen 21 may be a main screen, the second display screen 22 may be a sub-screen, and the first signal output interface 23 and the second signal output interface 24 may be output interfaces of touch signals, where the first signal output interface 23 may be a [ USB OUT1] interface, the second signal output interface 24 may be a [ USB OUT2] interface, and the switch 25 may be a [ USB SW ] switch.
As an optional implementation, the signal processing system of the tiled screen may further include: the first signal input interface is arranged in the first display screen 21 and used for receiving a first channel picture transmitted by external equipment so that the first display screen 21 displays the first channel picture; a second signal input interface, which is arranged in the first display screen 21 and is used for receiving a second channel picture transmitted by the external equipment, so that the second display screen 22 displays the second channel picture; the external device is connected to the first signal input interface for inputting the first channel picture to the first display screen 21, or connected to the second signal input interface for inputting the second channel picture to the second display screen 22.
In this embodiment, a first signal input interface and a second signal input interface may be provided in the first display screen 21, wherein, the first signal input interface can be used for receiving a first channel picture transmitted by an external device, so that the first display screen 21 displays the first channel picture, when the first channel picture transmitted from the external device is input into the first display screen 21 through the first signal input interface, a Universal Serial Bus (USB) may be used to connect the USB Interface of the external device and the first signal output Interface 23 of the first display screen 21, i.e., [ USB OUT1], at this time, since the first display screen 21 and the external device are connected in advance through a High Definition Multimedia Interface (HDMI) connection line, the first display screen 21 can separately display the transmitted first channel screen of the external device.
In the above embodiment, the second signal input interface may be configured to receive a second channel image transmitted by the external device, so that the second display screen 22 displays the second channel image, when the second channel image transmitted by the external device is input into the first display screen 21 through the second signal input interface, the USB interface of the external device and the second signal output interface 24 of the first display screen 21, that is, the [ USB OUT2] interface, may be connected by using a USB cable, at this time, since the second touch signal received by the external device is output by the second signal output interface 24, that is, the touch signal received by the external device is generated by the second display screen 22, it may be determined that the second display screen 22 alone displays the second channel image transmitted by the external device at this time.
Optionally, the first Signal input interface and the second Signal input interface IN this embodiment may be input interfaces for video signals, where the first Signal input interface may be an [ HDMI IN1] interface, and the second Signal input interface may be an [ Other Signal ] interface.
Alternatively, in this embodiment, the first channel picture may be the same as the second channel picture or may be different from the second channel picture.
As an optional implementation, the signal processing system of the tiled screen may further include: and the first main board is arranged in the first display screen, is connected with the first signal output interface 23, and is communicated with the change-over switch 25, and the first main board is used for controlling the switching of the second end of the change-over switch 25.
In this embodiment, a first main board may be disposed in the first display screen 21, and the first main board may be connected to the first signal output interface 23, and when a touch signal (which may be a first touch signal or a second touch signal) is transmitted to the first main board, the first main board processes the touch signal and transmits the touch signal to the first signal output interface 23, and the first signal output interface 23 transmits the touch signal to an external device.
In the above embodiment, the first main board may further communicate with the switch 25, and when the second touch signal is transmitted to the first display screen 21, the first main board may control the switch 25 to switch through the control signal.
As an optional implementation manner, the first motherboard is further configured to control the switch 25 to switch to the signal forwarding interface when the external device is connected to the first signal input interface, and control the switch 25 to switch to the second signal output interface when the external device is connected to the second signal input interface, where the signal forwarding interface is connected to the first motherboard.
In this embodiment, the signal forwarding interface may be connected to a first main board, and the first main board may control the switch 25 to switch through a control signal to determine whether the second end of the switch 25 is connected to the signal forwarding interface or the second signal output interface 24. The first motherboard may control the switch 25 to switch to the signal forwarding interface in a case where the external device is connected to the first signal input interface, and the first motherboard may control the switch 25 to switch to the second signal output interface 24 in a case where the external device is connected to the second signal input interface.
As an optional implementation manner, the first main board is further configured to recognize a first touch signal from the received touch signals and transmit the first touch signal to the external device under the condition that the external device is connected to the first signal input interface, where the first touch signal is a touch signal generated by the first display screen 21.
In this embodiment, since the touch signal received by the first motherboard is forwarded through the signal forwarding interface, the signal forwarding interface may receive a first touch signal generated by a first touch device in the first display screen 21 and may also receive a second touch signal generated by a second touch device in the second display screen 22, and therefore, the touch signal received by the first motherboard may be the first touch signal or the second touch signal, and in a case where the external device is connected to the first signal input interface, the first motherboard may recognize the first touch signal from the received touch signals and then transmit the first touch signal to the external device through the first signal output interface 23.
As an optional implementation, the signal processing system of the tiled screen may further include: and the second main board is arranged in the second display screen 22, connected with the signal output end of the second touch signal, and used for transmitting the second touch signal to the first display screen 21.
In this embodiment, a second main board may be disposed in the second display screen 22, and the second main board may be connected to a signal output end of the second touch signal, after the second touch module in the second display screen 22 generates the second touch signal, the second touch signal may be transmitted to the second main board, and the second main board processes the second touch signal, transmits the second touch signal to an output interface in the second display screen 22, and transmits the second touch signal to the first display screen 21 through the output interface.
Optionally, IN this embodiment, the first main board and the second main board can distinguish the first TOUCH device [ TOUCH IN1] and the second TOUCH device [ TOUCH IN2] by the IDs of the first TOUCH device and the second TOUCH device, so that the first display screen 21 and the second display screen 22 can be operated independently and do not affect each other.
As an optional implementation manner, the external device is connected to the first signal output interface 23 and the second signal output interface 24, and is configured to control the first channel picture according to a first touch signal output by the first signal output interface 23, and control the second channel picture according to a second touch signal output by the second signal output interface 24.
In this embodiment, the external device may be one, the external device may be connected to the first signal output interface 23, or may be connected to the second signal output interface 24, and when the external device is connected to the first signal output interface 23, the external device determines that the touch signal output by the first signal output interface 23 is the first touch signal generated in the first display screen 21, at this time, because the first display screen 21 separately displays the first channel picture transmitted by the external device, the first channel picture transmitted by the external device may be controlled by the first touch signal generated in the first display screen 21, so as to achieve the purpose of separately controlling the external device through the first display screen 21.
Optionally, in the above embodiment, the touch signal received by the external device may be a first touch signal generated in the first display screen 21, or may also be a second touch signal generated in the second display screen 22, at this time, since both the first touch signal and the second touch signal received by the external device are output by the first signal output interface 23, it may be determined that the first display screen 21 and the second display screen 22 are in the copy mode at this time, and the first display screen 21 and the second display screen 22 may not be operated independently at this time.
In this embodiment, when the external device is connected to the second signal output interface 24, the external device determines that the touch signal output by the second signal output interface 24 is the second touch signal generated in the second display screen 22, and at this time, because the second display screen 22 separately displays the second channel image transmitted by the external device, the second channel image transmitted by the external device can be controlled by the second touch signal generated in the second display screen 22, so that the purpose of separately controlling the external device through the second display screen 22 is achieved.
Optionally, in the above embodiment, the external device determines that the first touch signal received by the external device may be a first touch signal generated in the first display screen 21, and the second touch signal received by the external device may be a second touch signal generated in the second display screen 22, at this time, since the first touch signal and the second touch signal received by the external device are output by the first signal output interface 23 and the second signal output interface 24 respectively, it may be determined that the touch signals may be independently transmitted between the first display screen 21 and the second display screen 22 to the external device at this time, and the first display screen 21 and the second display screen 22 may operate independently at this time without affecting each other.
Alternatively, the external device in this embodiment may be a device that generates an external signal source, such as a notebook computer.
Optionally, there may be one or two external devices in this embodiment. When the external device is one, the external device may simultaneously access the first signal input interface and the second signal input interface, and at this time, the external device may automatically allocate a first channel picture transmitted through the first signal input interface and a second channel picture transmitted through the second signal input interface, and at this time, the first channel picture and the second channel picture may be the same or different. Under the condition that the number of the external devices is two, the first external device can be accessed to the first signal input interface, at this time, the first display screen 21 can independently display the channel picture transmitted by the first external device, and the first external device is connected to the first signal output interface 23 and receives the first touch signal generated by the first display screen 21, so that the first external device is independently controlled through the first display screen 21; the second external device can access the second signal input interface, at this time, the second display screen 22 can separately display the channel picture transmitted by the second external device, and the second external device is connected to the second signal output interface 24, after the second display 22 generates the second touch signal and transmits the second touch signal to the first display 21, the first main board in the first display screen 21 controls the switch 25 to switch to the second signal output interface 24 through the control signal, and at this time, the second external device may receive the second touch signal output by the second signal output interface 24, thereby enabling the second external device to be controlled by the second display screen 22 alone, that is, when the first display screen 21 is realized to control the first external device alone, the use of the second display screen 22 is not affected, when the second display screen 22 is realized to control the second external device alone, the use of the first display screen 21 is not affected.
In the signal processing system of the tiled screen in this embodiment, by adding the switch and the second signal output interface in the first display screen, when the second display screen generates the second touch signal and transmits the second touch signal to the first display screen, the switch controls the second terminal of the switch to be connected to the first signal output interface or the second signal output interface, when the switch is connected to the first signal output interface, the switch controls the first signal output interface to output the second touch signal to the external device, and when the switch is connected to the second signal output interface, the switch controls the second signal output interface to output the second touch signal to the external device, since the second touch signal generated by the second display screen can be output at different signal output interfaces, the problem that the first touch signal and the second touch signal are output only through one signal output interface of the first display screen is avoided, therefore, the purpose that the touch signal can be independently output to the external equipment between the first display screen and the second display screen is achieved, the technical problem that the first display screen and the second display screen cannot be independently operated is solved, and the technical effect that the first display screen and the second display screen can be independently operated is achieved.
Example 2
There is also provided, in accordance with an embodiment of the present invention, an embodiment of a signal processing method for a tiled screen, which is executable by a signal processing system for a tiled screen in embodiment 1, and the steps shown in the flowchart of the figure may be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in an order different from that shown.
Fig. 4 is a flowchart of a signal processing method of a tiled screen according to an embodiment of the present invention. As shown in fig. 4, the method may include the steps of:
in step S402, a second touch signal is obtained, where the second touch signal is a touch signal generated by the second display screen.
In the technical solution provided by step S402 of the present invention, a second touch signal may be generated by a second touch module in the second display screen, and then the second touch signal is transmitted to the first display screen by the second display screen.
In this embodiment, after the second touch module generates the second touch signal, the second touch signal may be transmitted to a second main board of the second display screen, the second main board processes the second touch signal, and transmits the processed second touch signal to a signal output interface of the second display screen, and the signal output interface transmits the second touch signal to the first display screen.
Step S404, in a case that the switch is connected to the first signal output interface, controlling the first signal output interface to output a second touch signal to the external device, wherein the switch and the first signal output interface are both disposed in the first display screen.
In the technical solution provided in step S404 of the present invention, after the second touch signal is obtained, the switch in the first display screen may be connected to the first signal output interface, and under the condition that the switch is connected to the first signal output interface, the first display screen may control the second touch signal to be output to the external device through the first signal output interface.
In this embodiment, the switch may be configured to switch the transmission path of the second touch signal in the first display screen, as shown in fig. 3, after the second touch signal is transmitted into the first display screen, the first Main Board [ Main Board ] in the first display screen may control the switch [ USB SW ] to switch through the control signal USB CTL, and in the case that the switch [ USB SW ] is connected to the first signal output interface [ USB OUT1], the second touch signal is transmitted to the switch [ USB SW ] through the signal output interface [ USB OUT ] of the second display screen and transmitted to the signal forwarding interface [ USB b ] through the switch [ USB SW ], the signal forwarding interface [ USB HUB ] forwards the second touch signal to the first Main Board [ Main Board ] in the first display screen, and is processed by the first Main Board [ Main Board ] after the first Main Board ] processes the second touch signal, and transmitting the processed second touch signal to a first signal output interface [ USB OUT1], wherein the first display screen can control the second touch signal to be output to an external device through the first signal output interface [ USB OUT1 ].
Optionally, in the above embodiment, after the external device receives the second touch signal returned by the first signal output interface, because the first touch signal generated in the first display screen is also output to the external device through the first signal output interface, at this time, the external device determines that there are two touch signals returned by the first signal output interface, that is, the touch signals of the first display screen and the second display screen are both output through the first signal output interface in the first display screen, and the first display screen and the second display screen do not separately return the touch signals, therefore, the first display screen and the second display screen are in a copy mode, and at this time, the first display screen and the second display screen may not be independently operated.
Step S406, in a case that the switch is connected to the second signal output interface, controlling the second signal output interface to output the second touch signal to the external device, wherein the second signal output interface is disposed in the first display screen.
In the technical solution provided by step S406 of the present invention, the switch in the first display screen may further be connected to the second signal output interface, and under the condition that the switch is connected to the second signal output interface, the first display screen may control the second touch signal to be output to the external device through the second signal output interface.
In this embodiment, as shown in fig. 3, in the case that the switch [ USB SW ] is connected to the second signal output interface [ USB OUT2], the second touch signal is transmitted to the switch [ USB SW ] through the signal output interface [ USB OUT ] of the second display screen, and is directly transmitted to the second signal output interface [ USB OUT2] by the switch [ USB SW ], and at this time, the first display screen can control the second touch signal to be output to the external device through the second signal output interface [ USB OUT2 ].
Optionally, in this embodiment, after receiving the second touch signal returned by the second signal output interface, the external device determines that there is one touch signal returned by the first signal output interface and the second signal output interface, that is, the touch signal of the first display screen is returned to the external device through the first signal output interface, and the touch signal of the second display screen is returned to the external device through the second signal output interface, and since the touch signals of the first display screen and the second display screen are returned by different signal output interfaces, the first display screen and the second display screen can independently return the touch signal, and at this time, the first display screen and the second display screen can independently operate, do not affect each other.
Alternatively, the external device in this embodiment may be a device that generates an external signal source.
Through the above steps S402 to S406, a second touch signal is obtained, where the second touch signal is a touch signal generated by the second display screen; under the condition that the change-over switch is connected to the first signal output interface, controlling the first signal output interface to output a second touch signal to the external equipment, wherein the change-over switch and the first signal output interface are both arranged in the first display screen; and under the condition that the change-over switch is connected with the second signal output interface, controlling the second signal output interface to output a second touch signal to the external equipment, wherein the second signal output interface is arranged in the first display screen. That is, in this embodiment, by adding the switch and the second signal output interface in the first display screen, when the second display screen generates the second touch signal and transmits the second touch signal to the first display screen, the switch controls the second terminal of the switch to be connected to the first signal output interface or the second signal output interface, when the switch is connected to the first signal output interface, the first signal output interface is controlled to output the second touch signal to the external device, and when the switch is connected to the second signal output interface, the second signal output interface is controlled to output the second touch signal to the external device And then, the technical problem that the first display screen and the second display screen cannot be independently operated is solved, and the technical effect that the first display screen and the second display screen can be independently operated is achieved.
The above method of this example is further illustrated below.
As an optional implementation, the method further comprises: acquiring a first touch signal, wherein the first touch signal is a touch signal generated by a first display screen; and controlling the first signal output interface to output the first touch signal to the external equipment.
In this embodiment, a first touch signal may be generated by a first touch module in a first display screen, and then the first touch signal is forwarded to a first motherboard in the first display screen by a signal forwarding interface in a second display screen, and the first touch signal is processed by the first motherboard, and after the first motherboard processes the first touch signal, the first display screen may control a first signal output interface to output the first touch signal to an external device.
As an optional implementation manner, before controlling the first signal output interface to output the first touch signal to the external device in step S404, the method further includes: and under the condition that the external equipment is connected to a first signal input interface in the first display screen, connecting the interface of the external equipment and the first signal output interface, wherein the first signal input interface is used for enabling the first display screen to display a channel picture of the external equipment.
In this embodiment, before controlling the first signal output interface to output the first touch signal to the external device, in a case where the external device is connected to the first signal input interface in the first display screen, the USB interface of the external device and the first signal output interface in the first display screen may be connected by using a USB cable, and at this time, since the first display screen and the external device are connected by the HDMI connection cable in advance, the first display screen may separately display a channel picture of the external device at this time.
IN the above-described embodiment, as shown IN fig. 3, IN the case where the external device is connected to the first signal input interface [ HDMI IN1] IN the first display screen, the external signal of the external device may be input to the first Main Board [ Main Board ] IN the first display screen through the first signal input interface [ HDMI IN1], and responded by the first Main Board [ Main Board ], so that the channel screen of the external device is displayed IN the first display screen.
As an optional implementation manner, in step S404, controlling the first signal output interface to output the first touch signal to the external device includes: the method comprises the steps that a change-over switch is controlled to be switched to a signal forwarding interface based on a first main board, wherein the first main board and the signal forwarding interface are both arranged in a first display screen, and the signal forwarding interface is used for forwarding a first touch signal to the first main board; transmitting the first touch signal to a first signal output interface; and controlling the first signal output interface to transmit the first touch signal back to the external equipment.
In this embodiment, as shown in fig. 3, when the first signal output interface [ USB OUT1] is controlled to output the first touch signal to the external device, the first Main Board [ Main Board ] of the first display screen may control the switch [ USB SW ] to switch to the signal forwarding interface [ USB HUB ] through the control signal USB CTL, the signal forwarding interface [ USB HUB ] forwards the first touch signal to the first Main Board [ Main Board ], the first Main Board [ Main Board ] processes the first touch signal, the first touch signal after the first display screen control processing is transmitted to the first signal output interface [ USB OUT1], and the first touch signal is transmitted back to the external device through the first signal output interface [ USB OUT1 ].
As an optional implementation manner, before controlling the second signal output interface to output the second touch signal to the external device in step S406, the method further includes: and under the condition that the external equipment is connected to a second signal input interface in the first display screen, connecting the interface of the external equipment and a second signal output interface, wherein the second signal input interface is used for enabling the second display screen to display a channel picture of the external equipment.
In this embodiment, before controlling the second signal output interface to output the second touch signal to the external device, in a case that the external device is connected to the second signal input interface in the first display screen, the USB interface of the external device and the second signal output interface in the first display screen may be connected by using a USB cable, at this time, since the second touch signal received by the external device is output by the second signal output interface, that is, the touch signal received by the external device is generated by the second display screen, it may be determined that the second display screen displays the channel picture of the external device alone at this time.
In the above-described embodiment, as shown in fig. 3, in the case where the external device is connected to the second Signal input interface [ Other Signal ] in the first display screen, the external Signal of the external device may be input to the external Signal transmission interface [ HDMI SW ] in the first display screen through the second Signal input interface [ Other Signal ], the external Signal is transmitted to the second Main Board [ Main Board ] in the second display screen by the external Signal transmission interface [ HDMI SW ], and the second Main Board [ Main Board ] responds to the external Signal, so that the channel screen of the external device is displayed in the second display screen.
Alternatively, the external signal transmission interface in this embodiment may be an [ HDMI SW ] interface.
As an optional implementation manner, in step S406, controlling the second signal output interface to output the second touch signal to the external device includes: controlling the change-over switch to be switched to a second signal output interface based on the first main board; transmitting the second touch signal to a second signal output interface; and controlling the second signal output interface to transmit the second touch signal back to the external equipment.
In this embodiment, as shown in fig. 3, when the second signal output interface [ USB OUT2] is controlled to output the second touch signal to the external device, the first Main Board [ Main Board ] in the first display screen can control the switch [ USB SW ] to switch to the second signal output interface [ USB OUT2] through the control signal USB CTL, then control the second touch signal to be directly transmitted to the second signal output interface [ USB OUT2] through the first display screen, and transmit the second touch signal back to the external device through the second signal output interface [ USB OUT2 ].
In the related art, when the spliced screen is used, the touch devices of the main screen and the auxiliary screen are commonly connected to the same signal forwarding interface, and then connected to the main board of the main screen, and the touch signals generated by the touch devices are processed through the main board of the main screen, which is equivalent to that the main screen is connected to two touch devices at the same time.
In the signal processing method of the tiled screen in the present application, by adding the switch and the second signal output interface in the first display screen, when the second display screen generates the second touch signal and transmits the second touch signal to the first display screen, the switch controls the second terminal to connect the first signal output interface or the second signal output interface, when the switch is connected to the first signal output interface, the first signal output interface is controlled to output the second touch signal to the external device, when the switch is connected to the second signal output interface, the second signal output interface is controlled to output the second touch signal to the external device, since the second touch signal generated by the second display screen can be output at different signal output interfaces, the problem that the first touch signal and the second touch signal are output only through one signal output interface of the first display screen is avoided, therefore, the purpose that the touch signal can be independently output to the external equipment between the first display screen and the second display screen is achieved, the technical problem that the first display screen and the second display screen cannot be independently operated is solved, and the technical effect that the first display screen and the second display screen can be independently operated is achieved.
Example 3
According to the embodiment of the invention, the signal processing device of the spliced screen is also provided. It should be noted that the signal processing apparatus of the spliced screen can be used to execute the signal processing method of the spliced screen in embodiment 2 of the present invention.
Fig. 5 is a schematic diagram of a signal processing device of a tiled screen according to an embodiment of the present invention. As shown in fig. 5, the signal processing device 50 of the tiled screen may include: an acquisition unit 51, a first control unit 52 and a second control unit 53.
The obtaining unit 51 is configured to obtain a second touch signal, where the second touch signal is a touch signal generated by the second display screen.
The first control unit 52 is configured to control the first signal output interface to output the second touch signal to the external device when the switch is connected to the first signal output interface, where the switch and the first signal output interface are both disposed in the first display screen.
And a second control unit 53, configured to control the second signal output interface to output a second touch signal to the external device when the switch is connected to the second signal output interface, where the second signal output interface is disposed in the first display screen.
As an alternative embodiment, the signal processing device 50 of the tiled screen further includes: the processing unit is used for acquiring a first touch signal, wherein the first touch signal is a touch signal generated by the first display screen; and the third control unit is used for controlling the first signal output interface to output the first touch signal to the external equipment.
As an alternative embodiment, the signal processing device 50 of the tiled screen further includes: the first connection unit is used for connecting the interface of the external device and the first signal output interface under the condition that the external device is connected to the first signal input interface in the first display screen before controlling the first signal output interface to output the first touch signal to the external device, wherein the first signal input interface is used for enabling the first display screen to display a channel picture of the external device.
As an alternative embodiment, the first control unit 52 includes: the first switching module is used for controlling the switching switch to be switched to the signal forwarding interface based on the first main board, wherein the first main board and the signal forwarding interface are both arranged in the first display screen, and the signal forwarding interface is used for forwarding the first touch signal to the first main board; the first transmission module is used for transmitting the first touch signal to the first signal output interface; the first feedback module is used for controlling the first signal output interface to transmit the first touch signal back to the external device.
As an alternative embodiment, the signal processing device 50 of the tiled screen further includes: the second connection unit is configured to connect the interface of the external device and the second signal output interface when the external device is connected to the second signal input interface in the first display screen before controlling the second signal output interface to output the second touch signal to the external device, where the second signal input interface is used for enabling the second display screen to display a channel picture of the external device.
As an alternative embodiment, the second control unit 53 includes: the second switching module is used for controlling the switching switch to be switched to the second signal output interface based on the first main board; the second transmission module is used for transmitting the second touch signal to the second signal output interface; and the second return module is used for controlling the second signal output interface to return the second touch signal to the external equipment.
In the signal processing apparatus for a tiled display screen in this embodiment, by adding the switch and the second signal output interface in the first display screen, when the second display screen generates the second touch signal and transmits the second touch signal to the first display screen, the switch controls the second terminal of the switch to be connected to the first signal output interface or the second signal output interface, when the switch is connected to the first signal output interface, the switch controls the first signal output interface to output the second touch signal to the external device, and when the switch is connected to the second signal output interface, the switch controls the second signal output interface to output the second touch signal to the external device, since the second touch signal generated by the second display screen can be output at different signal output interfaces, the problem that the first touch signal and the second touch signal are output through only one signal output interface of the first display screen is avoided, therefore, the purpose that the touch signal can be independently output to the external equipment between the first display screen and the second display screen is achieved, the technical problem that the first display screen and the second display screen cannot be independently operated is solved, and the technical effect that the first display screen and the second display screen can be independently operated is achieved.
Example 4
There is also provided, in accordance with an embodiment of the present invention, a computer-readable storage medium having stored thereon a plurality of instructions adapted to be loaded by a processor and to carry out the method steps of any one of embodiment 2.
In this embodiment of the present application, the storage medium stores a plurality of instructions, so that the processor can load and execute the method of any one of embodiments 2 to obtain a second touch signal, where the second touch signal is a touch signal generated by the second display screen; under the condition that the change-over switch is connected to the first signal output interface, controlling the first signal output interface to output a second touch signal to the external equipment, wherein the change-over switch and the first signal output interface are both arranged in the first display screen; and under the condition that the change-over switch is connected with the second signal output interface, controlling the second signal output interface to output a second touch signal to the external equipment, wherein the second signal output interface is arranged in the first display screen. The above scheme adds the change-over switch and the second signal output interface in the first display screen, when the second display screen generates the second touch signal and transmits the second touch signal to the first display screen, the change-over switch controls the second end to connect the first signal output interface or the second signal output interface, when the change-over switch connects the first signal output interface, the first signal output interface is controlled to output the second touch signal to the external device, when the change-over switch connects the second signal output interface, the second signal output interface is controlled to output the second touch signal to the external device, because the second touch signal generated by the second display screen can be output at different signal output interfaces, the problem that the first touch signal and the second touch signal are only output through one signal output interface of the first display screen is avoided, thereby realizing the purpose that the touch signal can be independently output to the external device between the first display screen and the second display screen, and then solved between first display screen and the second display screen unable independent operation technical problem, reached between first display screen and the second display screen can independent operation's technological effect.
Example 5
According to an embodiment of the present invention, there is also provided an intelligent interactive tablet, including: a processor and a memory; wherein the memory stores a computer program adapted to be loaded by the processor and to perform the method steps of any of the embodiment 2.
Fig. 6 is a schematic structural diagram of an intelligent interactive tablet according to an embodiment of the present invention. The smart interaction tablet comprises the interaction device body and the touch frame, and as shown in fig. 6, the smart interaction tablet 600 may include: at least one processor 601, at least one network interface 604, a user interface 603, a memory 605, at least one communication bus 602.
Wherein a communication bus 602 is used to enable the connection communication between these components.
The user interface 603 may include a Display screen (Display) and a Camera (Camera), and the optional user interface 603 may also include a standard wired interface and a wireless interface.
The network interface 604 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface).
Processor 601 may include one or more processing cores, among others. The processor 601 connects various parts throughout the smart interaction panel 600 using various interfaces and lines, and performs various functions of the smart interaction panel 600 and processes data by executing or executing instructions, programs, code sets, or instruction sets stored in the memory 605, as well as invoking data stored in the memory 605. Optionally, the processor 601 may be implemented in at least one hardware form of Digital Signal Processing (DSP), Field-Programmable Gate Array (FPGA), and Programmable Logic Array (PLA). The processor 601 may integrate one or more of a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), a modem, and the like. Wherein, the CPU mainly processes an operating system, a user interface, an application program and the like; the GPU is used for rendering and drawing the content required to be displayed by the display screen; the modem is used to handle wireless communications. It is understood that the modem may not be integrated into the processor 601, but may be implemented by a single chip.
The Memory 605 may include a Random Access Memory (RAM) or a Read-Only Memory (Read-Only Memory). Optionally, the memory 605 includes a non-transitory computer-readable medium. The memory 605 may be used to store instructions, programs, code, sets of codes, or sets of instructions. The memory 605 may include a stored program area and a stored data area, wherein the stored program area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playing function, an image playing function, etc.), instructions for implementing the various method embodiments described above, and the like; the storage data area may store data and the like referred to in the above respective method embodiments. The memory 605 may optionally be at least one storage device located remotely from the processor 601. As shown in fig. 6, the memory 605, which is one type of computer storage medium, may include therein an operating system, a network communication module, a user interface module, and an operating application of the smart interactive tablet.
In the intelligent interactive tablet 600 shown in fig. 6, the user interface 603 is mainly used to provide an input interface for a user to obtain data input by the user; and the processor 601 may be configured to call the operation application of the smart interactive tablet stored in the memory 605 and specifically perform any one of the operations in embodiment 2.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (16)

1. A signal processing system of a spliced screen, the spliced screen comprises a first display screen and a second display screen, and is characterized in that the system further comprises:
the first signal output interface and the second signal output interface are arranged in the first display screen;
the first end of the selector switch is connected to a signal output end of a second touch signal, and the second end of the selector switch is connected to the first signal output interface or the second signal output interface, wherein the second touch signal is a touch signal generated by the second display screen;
and under the condition that the change-over switch is connected to the second signal output interface, the second touch signal is controlled to be output to the external equipment through the second signal output interface.
2. The system of claim 1, further comprising:
the first signal input interface is arranged in the first display screen and used for receiving a first channel picture transmitted by the external equipment so that the first display screen displays the first channel picture;
the second signal input interface is arranged in the first display screen and used for receiving a second channel picture transmitted by the external equipment so that the second display screen displays the second channel picture;
the external device is connected with the first signal input interface and used for inputting the first channel picture to the first display screen, or connected with the second signal input interface and used for inputting the second channel picture to the second display screen.
3. The system of claim 2, further comprising:
the first mainboard is arranged in the first display screen, is connected with the first signal output interface and is communicated with the change-over switch, and the first mainboard is used for controlling the switching of the second end of the change-over switch.
4. The system of claim 3, wherein the first motherboard is further configured to control the switch to a signal forwarding interface if the external device is connected to the first signal input interface, and to control the switch to the second signal output interface if the external device is connected to the second signal input interface, wherein the signal forwarding interface is connected to the first motherboard.
5. The system according to claim 4, wherein the first motherboard is further configured to recognize a first touch signal from the received touch signals and transmit the first touch signal to the external device when the external device is connected to the first signal input interface, wherein the first touch signal is a touch signal generated by the first display screen.
6. The system of claim 1, further comprising:
and the second mainboard is arranged in the second display screen, is connected with the signal output end of the second touch signal and is used for transmitting the second touch signal to the first display screen.
7. The system of claim 2,
the external device is connected with the first signal output interface and the second signal output interface, and is used for controlling the first channel picture according to a first touch signal output by the first signal output interface and controlling the second channel picture according to a second touch signal output by the second signal output interface.
8. A signal processing method of a spliced screen comprises a first display screen and a second display screen, and is characterized in that the first display screen comprises: the signal processing method of the spliced screen comprises a first signal output interface, a second signal output interface and a change-over switch, wherein the signal processing method of the spliced screen comprises the following steps:
acquiring a second touch signal, wherein the second touch signal is a touch signal generated by a second display screen;
under the condition that a change-over switch is connected to a first signal output interface, controlling the first signal output interface to output a second touch signal to external equipment, wherein the change-over switch and the first signal output interface are both arranged in a first display screen;
and under the condition that the change-over switch is connected with a second signal output interface, controlling the second signal output interface to output the second touch signal to the external equipment, wherein the second signal output interface is arranged in the first display screen.
9. The method of claim 8, further comprising:
acquiring a first touch signal, wherein the first touch signal is a touch signal generated by a first display screen;
and controlling the first signal output interface to output the first touch signal to the external equipment.
10. The method of claim 9, wherein before controlling the first signal output interface to output the first touch signal to the external device, the method further comprises:
and under the condition that the external equipment is connected to a first signal input interface in the first display screen, connecting an interface of the external equipment and the first signal output interface, wherein the first signal input interface is used for receiving a first channel picture transmitted by the external equipment, so that the first display screen displays the first channel picture.
11. The method of claim 10, wherein controlling the first signal output interface to output the first touch signal to the external device comprises:
controlling the change-over switch to be switched to a signal forwarding interface based on a first main board, wherein the first main board and the signal forwarding interface are both arranged in the first display screen, and the signal forwarding interface is connected with the first main board and is used for forwarding the first touch signal to the first main board;
transmitting the first touch signal to the first signal output interface;
and controlling the first signal output interface to transmit the first touch signal back to the external equipment.
12. The method of claim 8, wherein before controlling the second signal output interface to output the second touch signal to the external device, the method further comprises:
and under the condition that the external equipment is connected to a second signal input interface in the first display screen, connecting an interface of the external equipment with the second signal output interface, wherein the second signal input interface is used for receiving a second channel picture transmitted by the external equipment, so that the second display screen displays the second channel picture.
13. The method of claim 12, wherein controlling the second signal output interface to output the second touch signal to the external device comprises:
controlling the change-over switch to be switched to the second signal output interface based on the first main board;
transmitting the second touch signal to the second signal output interface;
and controlling the second signal output interface to transmit the second touch signal back to the external equipment.
14. A signal processing apparatus of a tiled screen, comprising:
the acquisition unit is used for acquiring a second touch signal, wherein the second touch signal is a touch signal generated by a second display screen;
the first control unit is used for controlling the first signal output interface to output the second touch signal to external equipment under the condition that the selector switch is connected to the first signal output interface, wherein the selector switch and the first signal output interface are both arranged in the first display screen;
and the second control unit is used for controlling the second signal output interface to output the second touch signal to the external equipment under the condition that the change-over switch is connected to the second signal output interface, wherein the second signal output interface is arranged in the first display screen.
15. A computer-readable storage medium, characterized in that it stores a plurality of instructions adapted to be loaded by a processor and to carry out the method steps according to any one of claims 8 to 13.
16. An intelligent interactive tablet, comprising: a processor and a memory; wherein the memory stores a computer program adapted to be loaded by the processor and to perform the method steps of any of claims 8 to 13.
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