CN106454153B - A kind of display methods and touch control terminal of touch control terminal - Google Patents
A kind of display methods and touch control terminal of touch control terminal Download PDFInfo
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- CN106454153B CN106454153B CN201610811366.6A CN201610811366A CN106454153B CN 106454153 B CN106454153 B CN 106454153B CN 201610811366 A CN201610811366 A CN 201610811366A CN 106454153 B CN106454153 B CN 106454153B
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000006243 chemical reaction Methods 0.000 claims abstract description 155
- 238000004891 communication Methods 0.000 claims description 8
- 230000008054 signal transmission Effects 0.000 claims description 7
- 238000012545 processing Methods 0.000 abstract description 25
- VJTAZCKMHINUKO-UHFFFAOYSA-M chloro(2-methoxyethyl)mercury Chemical compound [Cl-].COCC[Hg+] VJTAZCKMHINUKO-UHFFFAOYSA-M 0.000 abstract description 7
- 230000004044 response Effects 0.000 abstract description 7
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- 230000005236 sound signal Effects 0.000 description 5
- 239000004973 liquid crystal related substance Substances 0.000 description 3
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/268—Signal distribution or switching
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
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- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The present invention relates to a kind of display methods of touch control terminal and touch control terminals, the present invention increases a signal conversion module in touch control terminal, the OPS vision signal of OPS module output and the mainboard vision signal of television module output are transmitted directly to the signal conversion module, signal conversion module is decoded respectively to the two-path video signal received and coded treatment, the corresponding vision signal for generating two-way preset format, and according to the channel control signals from television module, the vision signal all the way in the vision signal of above-mentioned two-way preset format is sent to display.Since the OPS vision signal that OPS is exported only is decoded and coded treatment by signal conversion module, without relevant any processing such as image quality processing and MEMC processing, so avoiding the display delay as caused by image quality processing and MEMC processing etc., and then improve the touch-control response time of OPS channel pattern.
Description
Technical Field
The present invention relates to the field of touch display technologies, and in particular, to a display method for a touch terminal and a touch terminal.
Background
Currently, some touch devices integrate functions of a television and a computer, and such touch devices can be called a computer-television touch all-in-one machine. In a computer-television touch control all-in-one machine, two working modes, namely a television channel mode and an OPS channel mode, are usually set, and the switching between the television function and the computer function of the all-in-one machine can be realized through the switching between the two working modes.
Fig. 1 is a schematic structural diagram of a touch control all-in-one machine for a computer and a television. As shown in fig. 1, the all-in-one machine includes an OPS (Open plug capable Specification) module 1, an interface board 2, a tv module 3 communicatively connected to the OPS module 1 through the interface board 2, and a display 4 communicatively connected to the tv module 3, wherein a touch frame 5 is further disposed around a screen of the display 4. When the integrated machine is in the television channel mode, the integrated machine processes the main board video signal output by the television module 3 in such a way that the television module 3 directly transmits the main board video signal to a TCON (time control Register) board in the display 4, and the TCON board decodes the main board video signal and drives liquid crystal molecules in the display 4 to display an image. When the integrated machine is in the OPS channel mode, the integrated machine processes the OPS video signal output by the OPS module 1 in the manner that the OPS module 1 transmits the OPS video signal to the television module 3 first, the television module 3 performs image quality processing, Motion image Compensation (MEMC) processing, and On Screen Display (OSD) signal hybrid coding On the received OPS video signal, and transmits the processed video signal to a TCON (Timer Control Register) board in the Display 4, and the TCON board decodes the video signal and drives liquid crystal molecules in the Display 4 to Display an image.
Since the television module 3 needs to consume a certain processing time for both the image quality processing and the MEMC processing of the video signal, a certain display delay occurs in a picture displayed in the screen of the display 4 relative to the video signal output by the OPS module 1, and particularly, when a user performs a touch operation on the screen of the display 4, the display delay may be expressed in that the touch operation response content presented to the user by the display 4 cannot quickly respond to the gesture action of the user, and the response time of the touch operation is too long.
Disclosure of Invention
In order to overcome the problems in the related art, the invention provides a display method of a touch terminal and the touch terminal.
According to a first aspect of the embodiments of the present invention, a display method of a touch terminal is provided, in which a signal conversion module is added, the method including:
the signal conversion module receives a main board video signal from a television module and an OPS video signal from an open type pluggable OPS module;
the signal conversion module divides the mainboard video signal into a first video signal and a second video signal;
the signal conversion module performs mixed coding on the second video signal and the OPS video signal to obtain a third video signal;
when the signal conversion module receives a channel control signal from the television module, the signal conversion module judges whether the touch terminal is in an OPS channel mode;
if the touch terminal is in an OPS channel mode, the signal conversion module sends the third video signal to a display;
and if the touch terminal is not in the OPS channel mode, the signal conversion module sends the first video signal to a display.
According to a second aspect of the embodiments of the present invention, there is provided another display method of a touch terminal, in which a signal conversion module is added, the method including:
the signal conversion module receives an OSD signal and a mainboard video signal from the television module;
the signal conversion module receives an OPS video signal from an OPS module;
when the signal conversion module receives a channel control signal from the television module, the signal conversion module judges whether the touch terminal is in an OPS channel mode;
if the touch terminal is in an OPS channel mode, the signal conversion module performs mixed coding on the OSD signal and the OPS video signal and sends a first video signal obtained by mixed coding to a display;
and if the touch terminal is not in the OPS channel mode, the signal conversion module performs mixed coding on the OSD signal and the main board video signal and sends a second video signal obtained by mixed coding to a display.
According to a third aspect of the embodiments of the present invention, there is provided a touch terminal, including a television module, an OPS module, a display, and a signal conversion module, wherein:
the input end of the signal conversion module is respectively in communication connection with the output ends of the television module and the OPS module, and the output end of the signal conversion module is in communication connection with the input end of the display;
the signal conversion module is configured to execute a display method of the touch terminal according to any one of the first aspect and the second aspect of the present invention.
According to the technical scheme, the touch terminal and the display method thereof provided by the embodiment of the invention have the advantages that the signal conversion module is additionally arranged in the touch terminal, the OPS video signal output by the OPS module and the main board video signal output by the television module are directly sent to the signal conversion module, the signal conversion module respectively decodes and codes the received signals to correspondingly generate two paths of video signals with preset formats, and one of the two paths of video signals is selected to be sent to the display according to the channel control signal from the television module. Since the signal conversion module only decodes and encodes the OPS video signal output by the OPS and does not perform any processing related to image quality processing, MEMC processing, and the like, display delay caused by image quality processing, MEMC processing, and the like in the television module is avoided, thereby improving touch response time of the OPS channel mode.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a computer-television touch control all-in-one machine in the prior art;
fig. 2 is a schematic diagram of a signal processing system of a touch terminal according to an embodiment of the present invention.
FIG. 3 is a flowchart illustrating a display method of a touch terminal according to the present invention;
FIG. 4 is a flowchart illustrating another display method of a touch terminal according to the present invention;
fig. 5 is a schematic diagram of a basic structure of a touch terminal according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a basic structure of another touch terminal according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a basic structure of another touch terminal according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
Aiming at the problem of touch operation response delay in an OPS channel mode of the existing computer-television touch all-in-one machine, the embodiment of the invention provides a touch terminal with the function of reducing touch response display delay. As shown in fig. 2, the terminal includes an OPS module 1, an interface board 2, a television module 3, a display 4, a signal conversion module 6, and a power supply 7 for supplying power to the modules, and a touch frame 5 is further disposed around a screen of the display 4, wherein:
the OPS module 1 is configured to process data and execute operations specified by a user, and has a processing system (e.g., a Windows system) installed therein, where the module Interface includes a set of HDMI (High Definition Multimedia Interface) signal interfaces, a set of DP (Display Port) signal interfaces, a set of UART (universal asynchronous Receiver and Transmitter) interfaces, three sets of USB interfaces (including two sets of USB2.0 and one set of USB3.0), a set of OPS control signal interfaces (the control signal includes power state detection, plug module detection, switch control, consumer electronics control CEC, etc.), a set of analog audio signal output interfaces, and a 19V power supply Interface.
Since the interface of the OPS module 1 is a specially defined (80PIN) interface, which cannot be directly interfaced with the tv module 2, an interface board 2 is required, and the interface board 3 is used to interface the OPS module 1 with the tv module 2 and the power supply 7.
The television module 3 is used for realizing the television function on one hand; on the other hand, the television module 2 is configured to receive an audio signal sent by the OPS module 1, convert the audio signal into an I2S signal, transmit the signal to a power amplifier module in the television module 2, and output the signal to a speaker, and in addition, the television module 2 is further configured to detect states (such as an access state, a power supply state, and an on/off state) of the OPS module and control the on/off of the OPS module 1 by using a control signal.
The signal conversion module 6 is configured to receive a computer video (HDMI/DP) signal sent by the OPS module 1 and a motherboard video (LVDS/VBY1) signal sent by the computer module 3, decode and encode the signals, and generate two paths of LVDS/VBY1 video signals in a preset format; and on the other hand, the video signal processing circuit is used for receiving the channel control signal sent by the computer module 3, selecting one of the two paths of video signals according to the channel control signal and sending the selected one of the two paths of video signals to the display 4.
The display 4 is used for receiving the LVDS/VBY1 video signal and the control signal from the signal conversion module 6 and displaying images.
The touch frame 5 is provided with two touch USB ports, one signal is sent to the television module 3, and the other signal is sent to the OPS module 1 by the television module 3.
For a common display screen with 1920 × 1080 resolution, an image signal received by a display of the display screen generally adopts an LVDS signal, and the embodiment of the present invention provides a display method of a touch terminal as follows. Fig. 3 is a flowchart of a display method of a touch terminal according to an embodiment of the present invention, where the method shown in fig. 3 is applied to the touch terminal device shown in fig. 2, and the method shown in fig. 3 includes the following steps:
s101: the signal conversion module receives a main board video signal from a television module and an OPS (open pluggable specification) video signal from an OPS module.
The signal conversion module receives a main board video signal in LVDS format from the television module and an OPS video signal in HDMI/DP format from the OPS module.
In this embodiment, the signal conversion module is disposed between the output ends of the OPS module and the tv module and the input end of the display, so that the video signals output by the OPS module and the tv module enter the signal conversion module through their respective ports.
S102: the signal conversion module divides the mainboard video signal into a first video signal and a second video signal.
After the mainboard video signal received by the signal conversion module, divide the mainboard video signal into a first video signal and a second video signal, specifically:
after the main board video signal received by the signal conversion module is copied, two paths of video signals, namely a first video signal and a second video signal, are obtained, wherein the first video signal and the second video signal correspond to an original video signal and a video signal obtained by copying, and video information contained in the first video signal and the second video signal is consistent.
The main board video signal is divided into a first video signal and a second video signal, and besides the main board video signal is copied, the received main board video signal can be input into a parallel output circuit to output two paths of video signals with the same characteristics. The received video signal of the main board is sent into a parallel design circuit which can output two paths of signals, and the characteristics of the parallel circuit show that the output two paths of signals are consistent with the input signals, namely the first video signal and the second video signal are the same with the received original video signal.
The embodiment provides two signal processing modes, namely a mode of inputting the video signal of the mainboard into a parallel output circuit, which has high wiring requirement on a circuit board, but can save cost; the mode of copying the video signal of the mainboard can be realized by an FPGA (Field-Programmable Gate Array) module, and the integrity of the signal can be ensured to the maximum extent.
S103: and the signal conversion module performs mixed coding on the second video signal and the OPS video signal to obtain a third video signal.
The signal conversion module performs mixed encoding on the second video signal and the OPS video signal, and specifically includes:
1) the signal conversion module decodes the second video signal to obtain an OSD signal in the second video signal.
The signal conversion module may decode the second video signal according to a decoding protocol of the LVDS, and then extract an OSD signal in the decoded second video signal.
2) The signal conversion module performs signal format conversion on the OPS video signal to obtain a converted OPS video signal, wherein the converted OPS video signal and the OSD signal are signals with the same signal format.
The signal conversion module may decode and decode the OPS video signal according to a coding and decoding protocol of TMDS (Transition Minimized Differential signal) to obtain a decoded OPS video signal, and then re-encode the decoded OPS video signal according to a coding protocol of LVDS to obtain a video signal having the same format as the OSD signal.
3) And the signal conversion module performs mixed coding on the converted OPS video signal and the OSD signal frame by frame according to a preset coding protocol.
The signal conversion module may perform frame-by-frame mixing encoding on the video signal obtained in step 2) and the OSD signal obtained in step 1) again according to the LVDS encoding protocol.
S104: when the signal conversion module receives the channel control signal from the television module, the signal conversion module judges whether the touch terminal is in an OPS channel mode.
The channel control signal is sent by a main chip I/O in the television module, and if the touch terminal is in the OPS channel mode, step S105 is executed, and if the touch terminal is in another channel mode, step S106 is executed.
S105: and the signal conversion module sends the third video signal to a display of the touch terminal.
S106: the signal conversion module sends the first video signal to a display of the touch terminal.
And the TCON board in the display decodes the received first or third video signal and drives the liquid crystal molecules in the display to display images.
The embodiment of the invention provides a display method of a touch terminal, which is characterized in that a signal conversion module is additionally arranged in the touch terminal, an OPS video signal output by the OPS module and a main board video signal output by a television module are directly sent to the signal conversion module, further, the signal conversion module encodes the OPS video signal (HDMI/DP signal) output by the OPS module into a video signal (LVDS signal) with a preset format and sends the video signal (LVDS signal) to a display without any processing related to other image quality processing, and further, the touch display delay is reduced.
For a high-definition 3840 × 2160-resolution display screen, an VBY1(V-by-one) signal is generally used as an image signal received by a display, and since a VBY1 signal can separately transmit a video signal and an OSD signal, the embodiment of the present invention provides the following display method of a touch terminal. Fig. 4 is a flowchart of a display method of a touch terminal according to an embodiment of the present invention, where the method shown in fig. 4 is applied to the touch terminal device shown in fig. 2, and the method shown in fig. 4 includes the following steps:
s201: the signal conversion module receives an OSD signal and a mainboard video signal from the television module.
S202: the signal conversion module receives the OPS video signal from the OPS module.
S203: when the signal conversion module receives a channel control signal from a television module in the touch terminal, the signal conversion module judges whether the touch terminal is in an OPS channel mode.
The channel control signal is sent by a main chip I/O in the television module, if the touch terminal is in the OPS channel mode, step S204 is executed, and if the touch terminal is in another channel mode, step S205 is executed.
S204: the signal conversion module performs mixed coding on the OSD signal and the OPS video signal and sends a first video signal obtained by mixed coding to a display.
The signal conversion module performs mixed coding on the received OSD signal and the OPS video signal, and specifically includes:
1) the signal conversion module respectively decodes the received OSD signals and OPS video signals to obtain decoded OSD signals and OPS video signals, wherein the decoded OSD signals and the decoded OPS video signals are signals with the same signal format.
For the OPS video signal from the OPS module, the signal conversion module may adopt a TMDS codec protocol, first convert the serial data into parallel data, and then solve the 10-bit minimized and DC balanced data into an 8-bit video signal; for the OSD signal from the tv module, the signal conversion module may use VBY1 codec protocol, and then the OSD signal is converted into an 8-bit video signal.
2) And the signal conversion module performs frame-by-frame mixed coding on the decoded OSD signal and the decoded OPS video signal according to a preset coding protocol.
The signal conversion module may perform the frame-by-frame mixing encoding on the OSD signal decoded in step 1) and the OPS video signal decoded again according to the encoding protocol of VBY1, such as the encoding scheme of 8B 10B.
S205: the signal conversion module performs mixed coding on the OSD signal and the main board video signal and sends a second video signal obtained by mixed coding to the display.
The signal conversion module performs mixed coding on the received OSD signal and the main board video signal, and specifically includes:
1) the signal conversion module decodes the received OSD signal and the mainboard video signal respectively to obtain a decoded OSD signal and a decoded mainboard video signal, wherein the decoded OSD signal and the decoded mainboard video signal are signals with the same signal format.
After the main board VIDEO signal (VIDEO signal) and the OSD signal of the television module are transmitted to the signal conversion module by channels, the signal conversion module can decode the two paths of signals (VBY1 signal) into RGB signals respectively according to the coding protocol of the main chip of the all-in-one machine.
2) And the signal conversion module performs frame-by-frame mixed coding on the decoded OSD signal and the decoded main board video signal according to a preset coding protocol.
The signal conversion module may perform frame-by-frame mixing coding on the VIDEO signal and the OSD signal decoded in step 1) again according to an VBY1 coding protocol, such as an 8B10B coding protocol, to obtain a VBY1 signal.
The display method of the touch terminal provided in this embodiment is different from the display method of the first touch terminal in that the OSD signal in the VBY1 format and the VIDEO signal received by the signal conversion module are transmitted separately, so that the step of signal copying the main board VIDEO signal can be omitted. When the touch terminal is in an OPS channel mode, the VDIEO signal of the OPS module is recoded into a VDIEO signal conforming to VBY1 protocol, then the coded VDIEO signal is converted into a single-frame signal, the single-frame signal is subjected to frame-by-frame matching with an OSD signal output by the framing all-in-one machine for coding, and finally the signal is output to a display. In the display method of the touch terminal provided by the embodiment, any processing related to other image quality processing is not performed on the VDIEO signal of the OPS module, so that the touch display delay can be reduced.
Fig. 5 is a schematic diagram of a basic structure of the touch terminal provided in the embodiment of the present invention, and as shown in fig. 5, the touch terminal includes an OPS module 1, a television module 3, a display 4, a signal conversion module 6, and a speaker 8, where:
the input of signal conversion module 6 is connected with the output communication of TV module 3 and OPS module 1 respectively, and the input communication of output and display 4 is connected, and the audio signal output of OPS module 1 is connected with the input communication of power amplifier module 31 in TV module 3, and the output of power amplifier module 31 is connected with the input communication of speaker 8.
Further, the signal conversion module 6 further includes a signal distribution submodule 61, a signal conversion submodule 62 and a signal selection switch 63, and the television module 3 further includes a power amplifier module 31.
The input end of the signal distribution submodule 61 is connected with the video signal output end of the television module 3, the output end of the signal distribution submodule is respectively connected with the input end of the signal conversion submodule 62 and the input end of the signal selection switch 63, the input end of the signal conversion submodule 62 is also connected with the video signal output end of the OPS module 1, the input end of the signal selection switch 63 is also respectively connected with the output end of the signal conversion submodule 62 and the channel control signal output end of the television module 3, and the output end of the signal selection switch is connected with the input end of the display 4; in addition, the audio signal output end of the OPS module 1 is connected with the input end of the power amplifier module 31 in the television module 3, and the output end of the power amplifier module 31 is connected with the loudspeaker 8.
The signal distribution submodule 61 is configured to receive the main board video signal from the television module 3, and divide the main board video signal into a first video signal and a second video signal.
Specifically, the signal distribution submodule 6 may use an FPGA module, wherein an LVDS sampling circuit is configured, the LVDS sampling circuit decodes a motherboard video LVDS signal of the television module 1 to obtain a decoded motherboard video signal, and then copies the decoded motherboard video signal, and configures the decoded motherboard video signal at a signal port of the FPGA module and an internal signal output interface respectively, and outputs the first video signal and the second video signal synchronously.
Certainly, the signal distribution sub-module 61 may also be implemented by designing a wiring of a circuit board, fig. 6 is a schematic diagram of a basic structure of another touch terminal provided in the embodiment of the present invention, and the difference between the touch terminal in fig. 6 and the embodiment is that the signal distribution sub-module 61 includes two signal transmission lines connected in parallel, an input end of the first two signal transmission lines is connected to an output end of the television module, and two output ends of the two signal transmission lines are respectively connected to an input end of the signal conversion sub-module 62 and an input end of the signal selection switch 63.
The two signal transmission lines may be configured with a first resistor 611 and a second resistor 612, the resistances of the first resistor 611 and the second resistor 612 are the same, and the integrity of the output signal is ensured by matching the resistors, wherein the resistances of the two resistors are 10 ohm to 100 ohm according to the routing manner and the path. In this embodiment, the signal distribution submodule 61 selects a parallel output circuit, so that the design is simple, and the cost is saved in terms of hardware.
The signal conversion sub-module 62, which may be an FPGA module, is configured to receive the second video signal from the signal distribution sub-module 61 and the OPS video signal from the OPS module 1, and perform mixed encoding on the second video signal and the OPS video signal to obtain a third video signal.
The signal division selection switch 63, which may also be an FPGA module, supports switching of high-speed signals, and is configured to receive an I/O channel control signal sent from a main chip in the television module, determine whether the touch terminal is in an OPS channel according to the channel control signal, send a received third video signal to the display 4 when the touch terminal is in the OPS channel, and send a received first video signal to the display 4 when the touch terminal is not in the OPS channel.
Another touch terminal is further provided in the embodiments of the present invention, fig. 7 is a schematic diagram of a basic structure of the touch terminal provided in the embodiments of the present invention, as shown in fig. 7, the touch terminal includes an OPS module 1, a television module 3, a display 4, a signal conversion module 6, and a speaker 8, where:
the signal conversion module comprises a first signal conversion submodule 65, a second signal conversion submodule 67, a first signal selection switch 64 and a second signal selection switch 66;
the input end of the first signal selection switch 64 is connected with the OSD signal and control signal output ends of the television module 3, the output end of the first signal conversion sub-module 65 is connected with the input end of the first signal conversion sub-module 65 and the input end of the second signal conversion sub-module 65, the input end of the first signal conversion sub-module 65 is further connected with the mainboard video signal output end of the television module 3, the output end of the first signal conversion sub-module 65 is connected with the input end of the second signal selection switch 66, the input end of the second signal conversion sub-module 65 is further connected with the output end of the OPS module 1, the output end of the second signal conversion sub-module is connected with the input end of the second signal selection switch 66, the input end of the second signal selection switch 66 is;
a first signal selection switch 64, configured to receive a channel control signal from the television module 3, determine whether the touch terminal is in the OPS channel mode according to the channel control signal, send the received OSD signal to the first signal conversion sub-module 65 if the touch terminal is in the OPS signal channel mode, and send the received OSD signal to the second signal conversion sub-module 66 if the touch terminal is not in the OPS signal channel mode;
a first signal conversion sub-module 65, configured to receive the OSD signal from the first signal selection switch 64 and the OPS video signal from the OPS module 1, perform mixed coding on the OSD signal and the OPS video signal, and send the first video signal obtained by mixed coding to the second signal selection switch 66;
a second signal conversion sub-module 65, configured to receive the OSD signal from the first signal selection switch 64 and the main board video signal from the television module 3, perform mixed encoding on the OSD signal and the main board video signal, and send the second video signal obtained by the mixed encoding to the second signal selection switch 66;
the second signal selection switch 66 is configured to receive a channel control signal from the television module 3, determine whether the touch terminal is in the OPS channel mode according to the channel control signal, send the received first video signal to the display if the touch terminal is in the OPS signal channel mode, and send the received first video signal to the display if the touch terminal is not in the OPS signal channel mode.
The channel control signals received by the first signal selection switch 64 and the second signal selection switch 66 are both I/O control signals transmitted by the main chip of the television module 3.
The touch control terminal provided by the embodiment of the invention is additionally provided with a signal conversion module, and the module mainly realizes the following two functions: conversion of video signals and encoded output of video signals. And when the touch terminal is in an OPS channel mode, the signal conversion module integrates the video signal of the OPS module and the OSD signal of the television module in a coding mode to realize the display of a complete OPS channel. Therefore, in the touch terminal provided by the embodiment of the invention, the video signal output by the OPS module does not need to pass through the television module, so that display delay caused by image quality processing, MEMC processing and the like of the video signal by a main chip in the television module is saved, and the touch response time in the OPS channel mode is greatly prolonged.
The same and similar parts among the various embodiments in the specification are referred to each other, and each embodiment focuses on differences from other embodiments.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (8)
1. A display method of a touch terminal is characterized in that a signal conversion module is added in the touch terminal, and the method comprises the following steps:
the signal conversion module receives a main board video signal from a television module and an OPS video signal from an open type pluggable OPS module;
the signal conversion module divides the mainboard video signal into a first video signal and a second video signal;
the signal conversion module performs mixed coding on the second video signal and the OPS video signal to obtain a third video signal;
when the signal conversion module receives a channel control signal from the television module, the signal conversion module judges whether the touch terminal is in an OPS channel mode;
if the touch terminal is in an OPS channel mode, the signal conversion module sends the third video signal to a display;
if the touch terminal is not in an OPS channel mode, the signal conversion module sends the first video signal to a display;
wherein the signal conversion module performs hybrid encoding on the second video signal and the OPS video signal, and includes:
the signal conversion module decodes the second video signal to obtain an on-screen menu type adjustment OSD signal in the second video signal;
the signal conversion module performs signal format conversion on the OPS video signal to obtain a converted OPS video signal, wherein the converted OPS video signal and the OSD signal are signals with the same signal format;
and the signal conversion module performs mixed coding on the converted OPS video signal and the OSD signal frame by frame according to a preset coding protocol.
2. The method of claim 1, wherein the signal conversion module divides the main board video signal into a first video signal and a second video signal, comprising:
the signal conversion module decodes the mainboard video signal to obtain a decoded mainboard video signal;
the signal conversion module copies the decoded main board video signal to obtain a first video signal and a second video signal;
or,
the signal conversion module outputs the main board video signals in parallel in two paths, wherein the video signals in the two paths are respectively a first video signal and a second video signal.
3. A display method of a touch terminal is characterized in that a signal conversion module is added in the touch terminal, and the method comprises the following steps:
the signal conversion module receives an OSD signal and a mainboard video signal from the television module;
the signal conversion module receives an OPS video signal from an OPS module;
when the signal conversion module receives a channel control signal from the television module, the signal conversion module judges whether the touch terminal is in an OPS channel mode;
if the touch terminal is in an OPS channel mode, the signal conversion module performs mixed coding on the OSD signal and the OPS video signal and sends a first video signal obtained by mixed coding to a display;
if the touch terminal is not in an OPS channel mode, the signal conversion module performs mixed coding on the OSD signal and the main board video signal and sends a second video signal obtained by mixed coding to a display;
wherein the signal conversion module performs mixed coding on the OSD signal and the OPS video signal, and comprises:
the signal conversion module decodes the OSD signal to obtain a decoded OSD signal;
the signal conversion module performs signal format conversion on the OPS video signal to obtain a converted OPS video signal, wherein the converted OPS video signal and the decoded OSD signal are signals with the same signal format;
and the signal conversion module performs mixed coding on the decoded OSD signal and the decoded OPS video signal frame by frame according to a preset coding protocol.
4. The method of claim 3, wherein the signal conversion module performs hybrid coding on the OSD signal and the main-board video signal, and comprises:
the signal conversion module decodes the OSD signal to obtain a decoded OSD signal;
the signal conversion module decodes the mainboard video signal to obtain a decoded mainboard video signal, wherein the decoded OSD signal and the decoded mainboard video signal are signals with the same signal format;
and the signal conversion module performs mixed coding on the decoded OSD signal and the decoded main board video signal frame by frame according to a preset coding protocol.
5. The utility model provides a touch terminal which characterized in that, includes TV module, OPS module, display and signal conversion module, wherein:
the input end of the signal conversion module is respectively in communication connection with the output ends of the television module and the OPS module, and the output end of the signal conversion module is in communication connection with the input end of the display;
the signal conversion module is configured to perform the method of any one of claims 1 to 4.
6. The touch terminal of claim 5, wherein the signal conversion module comprises a signal distribution submodule, a signal conversion submodule, and a signal selection switch, and wherein:
the input end of the signal distribution submodule is connected with the output end of the television module, the output end of the signal distribution submodule is respectively connected with the input end of the signal conversion submodule and the input end of the signal selection switch, the input end of the signal conversion submodule is also connected with the output end of the OPS module, the input end of the signal selection switch is also respectively connected with the output end of the signal conversion submodule and the output end of the television module, and the output end of the signal selection switch is connected with the input end of the display;
the signal distribution submodule is used for receiving a main board video signal from the television module and dividing the main board video signal into a first video signal and a second video signal;
the signal conversion sub-module is configured to receive a second video signal from the signal distribution sub-module and an OPS video signal from the OPS module, and perform mixed encoding on the second video signal and the OPS video signal to obtain a third video signal;
the signal selection switch is configured to receive a channel control signal from the television module, determine whether the touch terminal is in an OPS channel mode according to the channel control signal, send the received third video signal to the display if the touch terminal is in the OPS channel mode, and send the received first video signal to the display if the touch terminal is not in the OPS channel mode.
7. The touch terminal of claim 6, wherein the signal distribution submodule is specifically configured to:
the signal distribution submodule decodes the main board video signal to obtain a decoded main board video signal;
the signal distribution submodule copies the decoded main board video signal to respectively obtain a first video signal and a second video signal;
or,
the signal distribution submodule comprises two signal transmission lines which are connected in parallel, the input ends of the two signal transmission lines are connected with the output end of the television module, and the two output ends of the two signal transmission lines are respectively connected with the input end of the signal conversion submodule and the input end of the signal selection switch.
8. The touch terminal of claim 6, wherein the signal conversion module comprises a first signal conversion submodule, a second signal conversion submodule, and a first signal selection switch and a second signal selection switch, wherein:
the input end of the first signal selection switch is connected with the output end of the television module, the output end of the first signal selection switch is respectively connected with the input end of the first signal conversion submodule and the input end of the second signal conversion submodule, the input end of the first signal conversion submodule is further connected with the output end of the OPS module, the output end of the first signal conversion submodule is connected with the input end of the second signal selection switch, the input end of the second signal conversion submodule is further connected with the output end of the television module, the output end of the second signal selection switch is further connected with the input end of the second signal selection switch, and the input end of the second signal selection switch is further connected with the output end of the television module, and the output end of the second signal;
the first signal selection switch is used for receiving a channel control signal from the television module, judging whether the touch terminal is in an OPS channel mode according to the channel control signal, if the touch terminal is in the OPS signal channel mode, sending the received OSD signal to the first signal conversion sub-module, and if the touch terminal is not in the OPS signal channel mode, sending the received OSD signal to the second signal conversion sub-module;
the first signal conversion sub-module is configured to receive the OSD signal and the OPS video signal from the OPS module, perform mixed coding on the OSD signal and the OPS video signal, and send a first video signal obtained by the mixed coding to the second signal selection switch;
the second signal conversion submodule is used for receiving the OSD signal and a main board video signal from the television module, performing mixed coding on the OSD signal and the main board video signal, and sending a second video signal obtained by the mixed coding to the second signal selection switch;
the second signal selection switch is configured to receive a channel control signal from the television module, determine whether the touch terminal is in an OPS channel mode according to the channel control signal, send the first video signal to the display if the touch terminal is in the OPS signal channel mode, and send the second video signal to the display if the touch terminal is not in the OPS signal channel mode.
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| CN106954088B (en) * | 2017-03-07 | 2020-02-04 | 青岛海信电器股份有限公司 | Touch control method and touch control all-in-one machine |
| TWI634787B (en) * | 2017-11-17 | 2018-09-01 | 宏正自動科技股份有限公司 | Apparatus and method for switching video signal |
| CN109298750A (en) * | 2017-12-13 | 2019-02-01 | 中航华东光电（上海）有限公司 | A kind of reinforcement type intelligent display |
| CN108427545B (en) * | 2018-02-01 | 2021-07-09 | 广州视源电子科技股份有限公司 | Screenshot data processing method, device and system, storage medium and processor |
| CN108536231A (en) * | 2018-04-20 | 2018-09-14 | 广州昊旻晟电子技术有限公司 | A kind of touch one-piece machine |
| CN108415684A (en) * | 2018-05-08 | 2018-08-17 | 上海彭创教育科技有限公司 | A kind of intelligent blackboard list Driver Card |
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Address after: 266555 Qingdao economic and Technological Development Zone, Shandong, Hong Kong Road, No. 218 Patentee after: Hisense Visual Technology Co., Ltd. Address before: 266555 Qingdao economic and Technological Development Zone, Shandong, Hong Kong Road, No. 218 Patentee before: QINGDAO HISENSE ELECTRONICS Co.,Ltd. |