CN205751481U - The control device of display device and display device - Google Patents
The control device of display device and display device Download PDFInfo
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- CN205751481U CN205751481U CN201620671626.XU CN201620671626U CN205751481U CN 205751481 U CN205751481 U CN 205751481U CN 201620671626 U CN201620671626 U CN 201620671626U CN 205751481 U CN205751481 U CN 205751481U
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Abstract
Disclose the control device of a kind of display device and corresponding display device.This control device, including: selector, select the EDID information with this pattern matched according to the data form of acquired video signal；And read write line, it is connected with selector, the EDID information selected by reading, according to the EDID information read, video signal is shown for display device.Control device and display device according to the disclosure, matched EDID data can be selected for display device by the data form according to the data form of the signal of source device input or according to user's input.In this way, improve display device and and source device between compatibility, and can farthest utilize the display resolution of display device.
Description
Technical field
It relates to Display Technique field, the control device and the corresponding display that are specifically related to a kind of display device set
Standby.
Background technology
Recently, digital video is the most commonplace, generally can by digital interface by multimedia sources (such as Set Top Box,
DVD player and PC) digital video transmission that provides is to video display apparatus (such as TV) to receive from multimedia sources
Digital video show.Digital interface can be digital visual interface (DVI) or HDMI
(HDMI) etc..As a example by HDMI, HDMI source device (HDMI SOURCE), such as DVD player, Set Top Box (STB),
Blu-ray players etc., receive equipment (HDMI SINK) such as display device TV by HDMI with HDMI and are connected.
Generally, HDMI receive equipment, such as display device side extending display identification data EDID described in control
Information-related information.EDID is a kind of VESA standard data format, is used for making display device support plug-and-play feature.EDID
Describing display characteristic and the display capabilities of display device self, source device (such as PC, DVD, STB etc.) is corresponding according to EDID
The signal format supported of property value output display unit.
Along with the development of technology, occur in that the display device supporting the input of multichannel HDMI.But, in existing display
In equipment, it is fixing with each EDID corresponding for road HDMI, when a certain road HDMI data and the corresponding EDID data of input
When not mating, compatibility issue can be produced, cause the faults such as equipment deadlock.
Utility model content
One side according to the disclosure, it is provided that a kind of control device for display device.This control device includes: choosing
Select device, select the extending display identification data EDID letter with this pattern matched according to the data form of the video signal obtained
Breath；Read write line, is connected with selector, the EDID information selected by reading, for display device according to the EDID information read to regarding
Frequently signal shows.
Alternatively, according to an embodiment of the disclosure, this control device can also include memorizer, and wherein storage display sets
Standby at least one EDID information supported.
Alternatively, each EDID information is corresponding to a kind of video signal data form, and the sequential supported and band
Wide scope is different.
Alternatively, memorizer can also be positioned at the outside controlling device as independent memory device, by bus and control
Device communication processed.
Alternatively, according to an embodiment of the disclosure, this control device also includes: data-analyzing machine, is connected with selector
Connecing, the video signal inputting source device carries out the analysis of data form, and the result of analysis is sent to selector.
Alternatively, this control device also includes: communication interface, is connected with source device and data-analyzing machine, receives letter
Source device input video signal and provide it to data-analyzing machine.
Alternatively, according to an embodiment of the disclosure, data form includes the resolution that video signal is corresponding.
Alternatively, according to an embodiment of the disclosure, read write line is also connected with memorizer, reads storage according to user instruction
Device storage EDID information and be transferred to display device.Thus, it is possible to display to the user that stored EDID information, for
The EDID information that family selects or preset display device is to be used.
Alternatively, according to an embodiment of the disclosure, read write line is also connected with memorizer, according to user on display device
The amendment of the EDID information of display, by amended EDID information write-in memory.Thus, it is possible to according to the setting of user,
Change the EDID information of storage in memorizer.
Alternatively, according to an embodiment of the disclosure, wherein, the resolution at the video signal inputted sets higher than display
During for the resolution supported, selector selects the highest resolution of display device support to carry out video signal for display device
Display.
Alternatively, according to an embodiment of the disclosure, wherein, in the resolution phase of the video signal not stored and input
During the EDID information joined, selector selects the resolution immediate with this resolution of display device support for display device to regarding
Frequently signal shows.
Alternatively, according to an embodiment of the disclosure, wherein, when receiving the EDID information that user selects, reader
The EDID information of selection is supplied to source device by communication interface, is exported according to the change of EDID information for source device
The data form of video signal.Thus, it is possible to make source device according to the EDID information stored, correspondingly change output and give
The data form of the signal of display device, in order to mutually compatible with display device.
According to another aspect of the present disclosure, it is provided that the control device of a kind of display device.This control device includes: select
Device, selects the EDID information with this pattern matched stored according to the data form of the video signal obtained；Controller,
It is connected with selector, according to the EDID information selected, controls display device and show video signal with corresponding data form.
Alternatively, this control device also includes data-analyzing machine, is connected with controller, the data to the video signal of input
Form is analyzed, and the result of analysis is sent to controller.
Alternatively, controller is according to the data form analyzed, and control that selector selects to be stored matches
EDID information, reads for source device, and selects suitable resolution to show video signal for display device.
Alternatively, this control device also includes: graphical user interface (GUI), displays to the user that stored EDID information
Select for user, and also according to the demand of user, EDID information carried out preset or adjust.
Alternatively, the data form that controller can select on a user interface according to user, control selector and select to deposit
The EDID information matched of storage in reservoir, reads for source device, and selects suitable resolution to show for display device
Show video signal.
Alternatively, controller can revise the EDID information of storage in memorizer according to the EDID information of user's input,
Thus adjust in time as required and arrange for the EDID of display device.
An embodiment according to the disclosure, it is provided that a kind of display device, it includes above-mentioned control device.
According to embodiment of the disclosure, multiple EDID data can prestored, correspond respectively to different video letters
Number data form, and according to source device input signal data form or according to user input data form come
Select matched EDID data for display device.In this way, improve display device and set with information source
Compatibility between Bei, and can farthest utilize the display resolution of display device.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme that embodiment of the disclosure, the accompanying drawing of embodiment will be made simply below
Introduce, it should be apparent that, the accompanying drawing in describing below merely relates to some embodiments of the disclosure, rather than to of the present utility model
Limit.
Fig. 1 is the block diagram of a kind of video system of the exemplary embodiment according to the disclosure；
Fig. 2 is the flow chart controlling operation of a kind of video equipment of the exemplary embodiment according to the disclosure；
Fig. 3 shows a kind of use of display on the display interface of video equipment of the exemplary embodiment according to the disclosure
The menu of the EDID project that family can be arranged；
Fig. 4 shows a kind of use of display on the display interface of video equipment of the exemplary embodiment according to the disclosure
The menu of the resolution that family can be arranged；
Fig. 5 shows the flow process of a kind of EDID for changing display device of the exemplary embodiment according to the disclosure；
Fig. 6 is the block diagram of a kind of video equipment of the exemplary embodiment according to the disclosure；And
Fig. 7 A-7B is a kind of block diagram controlling device for display device of the exemplary embodiment according to the disclosure.
Detailed description of the invention
It is clearly and completely described below in conjunction with accompanying drawing embodiment of this disclosure, it is clear that described embodiment
It is only a part of this disclosure embodiment rather than whole embodiments.Based on the embodiment in the disclosure, this area is common
All other embodiments that technical staff is obtained under not making creative work premise, fall within the model of disclosure protection
Enclose.
Fig. 1 shows the block diagram of the video system of the exemplary embodiment according to the disclosure.As it is shown in figure 1, this video
System 10 includes: source device 20 and display device 30, and the two is connected to each other by digital cable 40.In the examples below,
For ease of discussing, the principle of disclosure embodiment is described as a example by HDMI.However, it should be noted that present principles is not limited to adopt
By the video system of HDMI, but may apply to use other digital interface, for example with the video system of DVI interface
System.
As example, source device 20 includes processor 210, memorizer 220, and HDMI communication interface 230.Processor
210 are connected by bus with memorizer 220 and HDMI communication interface 230, and control memorizer 220 and HDMI communication interface
The operation of 230.Memorizer 210 stores the control program of such as source device 20, about the configuration information of video/audio.Storage
Device 210 can be flash memory, hard disk drive, DVD drive etc..Video/audio signal is passed through digital line by communication interface 230
Cable, such as HDMI cable, be transferred to display device 30, send relevant control command receiving to display device 30 and set from display
The relevant request of standby 30.
Display device 30 exports the video/audio signal from source device, and such as, display device 30 can be TV
Machine, projector, monitor, or other display device.As example, display device 30 includes: controller 310, memorizer
320, communication interface 330 and display unit 340, controller 310 connects memorizer 320, communication interface 330 by bus and shows
Show parts 340, and control memorizer 320, communication interface 330 and the operation of display unit 340.Memorizer 320 stores such as
Control program, video/audio about display device 30 are arranged, such as, and EDID information.Memorizer 320 can be EEPROM,
FLASH, hard disk drive etc..Communication interface 330 receives the video/audio that source device 20 comes via digital cable transmissions
Signal, relevant control command, and request can be sent to source device 20.Display unit 340 will process through controller 310
Video signal display to the user that, and be also used as man-machine interface and make user can check and change display device 30
Relevant setting, such as, checks that EDID arranges and is modified.Although in FIG, display unit 340 is illustrated as being integrated in
Display device 30 is internal, However, it should be understood that as required, and display unit 340 can pass through signal as independent parts completely
Cable is connected with display device, and such embodiment is without departing from the principle of the disclosure.
As it has been described above, generally, the memorizer 320 of display device stores extending display identification data EDID, wherein
The content such as identification information that EDID comprises display device self and video format/attribute that display device is supported, such as,
EDID includes the resolution of HDMI pattern, color space and the availability that display device is supported.Source device can use
The information closing EDID configures graphics subsystem, and Application Software Program is likely to a part of information that can use in EDID.For
Correct operation, typically to guarantee that source device can read the content of EDID when display device opens or closes.Generally, exist
When using HDMI cable to be connected so as to carry out data transmission with display device by source device, source device is from display device
Read EDID.As it has been described above, in order to ensure the compatibility used between display device and the source device of the input of multichannel HDMI, can
With as desired to switching EDID, in order to match with corresponding HDMI input, thus avoid that video system is likely to occur dead
The faults such as machine.Such as, when 4K resolution supported by display device, EDID adds the 4K sequential of correspondence, and adds
Corresponding supported HDMI bandwidth and frequency.When source device reads these data, it is possible that incompatible or
Situation about crashing, needs the EDID data of more switching display devices again to mate this source device guarantee compatibility therebetween
Property.But, owing to, in current equipment, being fixing with each EDID corresponding for road HDMI, not supporting the switching of EDID, lead
Cause compatibility cannot ensure.
For solving the problems referred to above, according to present principles, multiple EDID number can be prestored in the memorizer of display device
According to, correspond respectively to the data form of different video signals, and select matched according to the data form of input
EDID data.In this way, improve display device and and source device between compatibility, and can maximum journey
Utilize the display resolution of display device degree.
For ease of discussing, hereinafter describe the former of the disclosure in detail mainly for the resolution in switching EDID information
Reason.However, it should be noted that the principle of the disclosure is not limited to be applied only to the switching of the resolution to display device, but permissible
The out of Memory expanding to as required be comprised EDID switches over, such as to controlling sequential, chrominance space, display type
Switch over Deng out of Memory.Such as, as a example by display device is for 4K TV, can for 4K sequential and supported corresponding
HDMI bandwidth and frequency, and be configured in EDID.
A kind of stream controlling operation for display device according to disclosure embodiment is illustrated below in conjunction with Fig. 2
Journey.As in figure 2 it is shown, S210, select the extending display identification data with this pattern matched according to the data form obtained
EDID information；And S220, according to the EDID information selected, control display device and show with corresponding data form.
Alternatively, according to embodiment of the disclosure, acquired data form includes the resolution corresponding with video signal.
Alternatively, according to embodiment of the disclosure, this control operation also includes: analyze the data lattice of the video signal of input
Formula, and select corresponding EDID information according to the data form analyzed.As example, the controller 310 in display device leads to
Cross the signal coming from source device 20 that communication interface 330 is received to be analyzed, determine the EDID letter matched
Breath.In this way, display device and source device input can be automatically selected in the case of without user intervention
The EDID that video signal matches is arranged.As example, source device can set to display by the way of explicit or implicit expression
The information of the standby data form provided about the video signal inputted.
Alternatively, such as it is shown on figure 3, can display to the user that in the display unit of display device and be deposited
The EDID information of storage, selects, for user, the data form matched that display unit is to be used.As example, can to
The family display definition of video input, maximum horizontal image size, maximum perpendicular image size, color characteristics, sequential, display pass
Defeated characteristic etc..Alternatively, shown EDID information can be modified by user as required, and controller 310 will be repaiied
EDID information after changing is saved in memorizer 320.
Alternatively, according to embodiment of the disclosure, as shown in Figure 4, can be to user in the display unit of display device
Show its resolution format supported, select, for user, the resolution format that display unit is to be used.
Alternatively, according to an embodiment of the disclosure, can be in the resolution of the video signal of input higher than display device
During the resolution supported, it is set to display device show video signal with highest resolution.Specifically, if display sets
After processor in Bei 310 by coming from the signal of source device 20 and being analyzed to receptions, determine that the video of input is believed
Number resolution supported higher than the display unit of display device highest resolution time, then with this highest resolution show from
Video signal in this source device.
Alternatively, according to an embodiment of the disclosure, the video signal that can not store in memorizer 320 and input
During the EDID information that resolution matches, in other words, the resolution of the video signal can not found at controller 310 and input
During the EDID information that rate matches, this display unit is set to the immediate resolution of resolution with the video signal of input
Rate shows.In such a case, it is possible to the distortion making the display of the video signal from source device produce is minimum, maximum
Degree ground ensures the compatibility with source device.
The foregoing describe according to source device output video signal or user input data form select or
Change the EDID information of display device storage, so that it is guaranteed that display device and the compatibility of source device.Alternatively,
It is alternatively possible to the EDID information that user selects is supplied to source device by communication interface 330 so that source device according to
EDID information changes the data form of the video signal to display device output.Such as, as shown in Figure 4, user according to such as
In display unit display resolution list and when selecting corresponding resolution, by the communication interface of such as display device by institute
The resolution selected is transferred to source device so that source device can adjust the video letter inputted to this display device in real time
Number resolution format, so that it is guaranteed that the video signal inputted matches with the resolution selected by user, improve with aobvious
Show the compatibility of equipment.
Fig. 5 shows the stream of the operation of a kind of EDID for changing display device according to disclosure exemplary embodiment
Journey.As it is shown in figure 5, S500, display device judges whether to HDMI and connects；S505, after judging that having carried out HDMI connects,
Determine the need for carrying out EDID change process；S510, if needing to carry out EDID change process, it may be judged whether in a manual manner
Perform the setting of EDID；S515, in the case of performing EDID setting in a manual manner, shows on the display screen and currently can set
The EDID item of information put, prompting user selects corresponding item of information and is configured, and the item of information write storage that will set
Device (can be the integrated memorizer of display device, it is also possible to be its outside memorizer being equipped with)；It not with hands judging
When flowing mode arranges EDID information, needing to carry out in an automatic fashion EDID setting, S520, analysis source device inputs to display and sets
The form of standby video signal, and compare with the EDID item of information stored, the lattice of the video signal selecting and inputting
The EDID item of information that formula is mated most, the EDID as display unit display video signal is arranged；Or, although not shown, also
Selected EDID item of information can be sent to source device, send to display device so that source device can adjust
The data form of video signal, thus ensure the compatibility of source device and display device.
Fig. 6 shows a kind of control device for display device according to disclosure exemplary embodiment.Such as Fig. 6 institute
Showing, this control device may include that selector 610, selects the EDID with this pattern matched according to the data form obtained
Information；Read write line 620, is connected with selector 610, the EDID information selected by reading, for display device according to the EDID read
Information shows.
Alternatively, according to an embodiment of the disclosure, this control device can also include memorizer 630, and wherein storage is aobvious
Show at least one extending display identification data EDID information that equipment is supported.
Alternatively, each of which item EDID information is corresponding to a kind of video signal data form, and the sequential supported
Different with bandwidth range.
Alternatively, memorizer 630 can also as independent memory device be positioned at control device outside, by bus with
Control device communication.
Alternatively, according to an embodiment of the disclosure, this control device can also include: data-analyzing machine 640, with selection
Device 610 is connected, and the video signal inputting source device carries out the analysis of data form, and the result of analysis is sent to
Selector.
Alternatively, this control device can also include: communication interface 650, is connected with source device and data-analyzing machine,
Receive the video signal of source device input and provide it to data-analyzing machine.
Alternatively, according to an embodiment of the disclosure, data form can include the resolution corresponding with video signal.
Alternatively, according to an embodiment of the disclosure, read write line 620 can also be connected with memorizer 630, refer to according to user
Order is read the EDID information of memorizer storage and is transferred to display device.Thus, it is possible to display to the user that stored EDID
Information, for the EDID information that user's selection or preset display device are to be used.
Alternatively, according to an embodiment of the disclosure, read write line 620 is also connected with memorizer 630, according to user to display
The amendment of the EDID information of display on equipment, by amended EDID information write-in memory 630.Thus, it is possible to according to
The setting at family, changes the EDID information of storage in memorizer.
Alternatively, according to an embodiment of the disclosure, wherein, inputted video signal is analyzed at data-analyzing machine
During the resolution that resolution is supported higher than display device, selector selects the highest resolution of memorizer storage for display device
Show.
Alternatively, according to an embodiment of the disclosure, wherein, the video signal not storing in memory and inputting point
During the EDID information that resolution matches, selector selects resolution immediate with this resolution to show for display device.
Alternatively, according to an embodiment of the disclosure, wherein, when receiving the EDID information that user selects, reader
The EDID information of selection is supplied to source device by communication interface so that source device is exported according to the change of EDID information
The data form of video signal.Thus, it is possible to make source device according to the EDID information stored, correspondingly change output
To the data form of the signal of display device, in order to mutually compatible with display device.
Alternatively, according to embodiment of the disclosure, control all parts included in device and can utilize special integrated
In circuit (ASIC), field programmable gate array (FPGA) or PLD (PLD) at least one and the most logical
Cross hardware to realize；Or, it would however also be possible to employ digital signal processor (DSP), micro-control unit (MCU), CPU
Etc. (CPU) programmed instruction of combination of hardware memorizer storage realizes its function.
Fig. 7 A illustrates the control device according to a kind of display device that embodiment of the disclosure.With the control described by Fig. 6
Device processed be similar to, this control device includes: selector 710, according to obtain data form select stored with these data lattice
The EDID information of formula coupling；And controller 720, be connected with selector, according to select EDID information, control display device with
Corresponding data form shows video signal.Alternatively, this control device can also be connected with external memory storage 800, wherein,
Memorizer 800 stores at least one extending display identification data EDID information that display device is supported.
Alternatively, each of which item EDID information is corresponding to a kind of video signal data form, and the sequential supported
Different with bandwidth range.
As replacement, memorizer 800 can also be integrated in this control device, as its internal storage.
As shown in Figure 7 A, this control device also includes: data-analyzing machine 730, wherein data-analyzing machine 730 and controller
720 connect, and be analyzed the data form of the video signal of input, and the result of analysis is sent to controller；Control
Device 720, according to the data form analyzed, controls selector and selects the EDID information matched of storage in memorizer, for letter
Source device reads, and selects suitable resolution to show for display device.
Fig. 7 B illustrates the control device according to the another kind of display device that embodiment of the disclosure.Described by Fig. 7 A
Controlling device to be similar to, this control device includes: selector 750, and the data form according to obtaining is searched and selects memorizer to be deposited
The EDID information with this pattern matched of storage；And controller 760, it is connected with selector, according to the EDID information selected,
Control display device to show with corresponding data form.Different from Fig. 7 A, this control device also includes graphical user interface
(GUI)770.Can have special user interface it practice, control device or can be controlled by communication interface utilization
Display device display to the user that as user interface stored EDID information selects for user, and also can according to
The demand at family, carries out EDID information preset or adjusts.Alternatively, this control device can also with external memory storage 820 even
Connecing, wherein, memorizer 820 stores the multinomial extending display identification data EDID information that display device is supported.Alternatively, the most often
One EDID information is corresponding to a kind of video signal data form, and the sequential supported is different with bandwidth range.
As replacement, memorizer 820 can also be integrated in this control device, as its internal storage.
Alternatively, the data form that controller can select on a user interface according to user, control selector and select to deposit
The EDID information matched of storage in reservoir, reads for source device, and selects suitable resolution to show for display device
Show.
Alternatively, controller can revise the EDID information of storage in memorizer according to the EDID information of user's input,
Thus adjust in time as required and arrange for the EDID of display device.
An embodiment according to the disclosure, it is provided that a kind of display device, it includes above-mentioned control device.
According to embodiment of the disclosure, multiple EDID data can prestored, correspond respectively to different video letters
Number data form, and according to source device input signal data form or according to user input data form come
Select matched EDID data for display device.In this way, improve display device and set with information source
Compatibility between Bei, and can farthest utilize the display resolution of display device.
The above, the only detailed description of the invention of the disclosure, but the protection domain of the disclosure is not limited thereto, and any
Those familiar with the art in technical scope disclosed in disclosure embodiment, the change that can readily occur in or replace
Change, all should contain within the protection domain of the disclosure.Therefore, the protection domain of the disclosure should be with the protection model of claim
Enclose and be as the criterion.
Claims (16)
1. a control device for display device, including:
Selector, selects the extending display identification data EDID information of coupling according to the data form of the video signal obtained；With
And
Read write line, is connected with selector, the EDID information selected by reading, shows according to the EDID information read for display device
Video signal.
Control device the most according to claim 1, also includes:
Memorizer, at least one EDID information that storage display device is supported.
Control device the most according to claim 1, also includes:
Data-analyzing machine, is connected with selector, and the video signal inputted carries out the analysis of data form, and by analysis
Result is sent to selector.
Control device the most according to claim 2, wherein, according to user instruction, read write line reads memorizer storage
EDID information, selects for user or input display device shows the data form that video signal is to be used.
Control device the most according to claim 2, wherein, read write line receives user's amendment to EDID information, and will repair
In EDID information write-in memory after changing.
6. according to the control device described in any one of claim 2-5, wherein, data form includes the resolution that video signal is corresponding
Rate.
Control device the most according to claim 6, wherein, the resolution at the video signal inputted is higher than display device
During the resolution supported, video signal is entered by the highest resolution that selector selects this display device to be supported for display device
Row display.
Control device the most according to claim 6, wherein, the resolution at the video signal not stored and input matches
EDID information time, selector selects resolution immediate with this resolution that this display device supported for display device pair
Video signal shows.
9. according to the control device described in any one of claim 1-5, wherein, the EDID information of selection is supplied to letter by reader
Source device so that source device changes the data form of the video signal inputted according to EDID information.
10. a control device for display device, including:
Selector, selects the extending display identification data with this pattern matched according to the data form of the video signal obtained
EDID information；
Controller, is connected with selector, according to the EDID information selected, controls display device and shows with corresponding data form
Video signal.
11. control devices according to claim 10, also include the data-analyzing machine being connected with controller, and wherein data are divided
The data form of the video signal of input is analyzed by parser, and the result of analysis is sent to controller.
12. control devices according to claim 11, wherein, according to the result analyzed, controller controls selector and selects
The EDID information matched.
13. control devices according to claim 10, also include the graphical user interface being connected with controller, wherein, are somebody's turn to do
Graphical user interface displays to the user that EDID information selects for user or is configured.
14. control devices according to claim 10, wherein, the EDID information of selection is supplied to information source and sets by controller
Standby so that source device changes the data form of the video signal inputted according to EDID information.
15. according to the control device described in any one of claim 10-14, also includes memorizer, wherein memorizer storage display
At least one EDID information that equipment is supported.
16. 1 kinds of display devices, including the control device described in any one of claim 1-15.
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| CN201620671626.XU CN205751481U (en) | 2016-06-29 | 2016-06-29 | The control device of display device and display device |
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| CN105957496A (en) * | 2016-06-29 | 2016-09-21 | 京东方科技集团股份有限公司 | Display equipment, and control method and control device thereof |
| CN106534751A (en) * | 2016-12-14 | 2017-03-22 | 北京小米移动软件有限公司 | Playing matching method and device |
| CN106941618A (en) * | 2017-03-17 | 2017-07-11 | 微鲸科技有限公司 | Over-scan adaptive display method and device |
| CN109189359A (en) * | 2018-10-23 | 2019-01-11 | 深圳市创维群欣安防科技股份有限公司 | A kind of main resolution ratio input control method of display equipment, system and storage medium |
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