CN105489155B - Master control borad, splicing wall display system and its windowing method of joined screen display unit - Google Patents
Master control borad, splicing wall display system and its windowing method of joined screen display unit Download PDFInfo
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- CN105489155B CN105489155B CN201511029321.5A CN201511029321A CN105489155B CN 105489155 B CN105489155 B CN 105489155B CN 201511029321 A CN201511029321 A CN 201511029321A CN 105489155 B CN105489155 B CN 105489155B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
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Abstract
The embodiment of the invention discloses a kind of master control borad of joined screen display unit, splicing wall display system and its windowing methods, it solves at present using each display unit of synchronous cable series connection, realize synchronous scheme due to needing additional cable by cable transmission synchronization pulse, to increase the complexity that cable connects after combination, at the same the line synchro poor contact that occurs and caused by sync break the technical issues of.The master control borad of joined screen display unit of the embodiment of the present invention includes: a plurality of clock circuits, each clock circuit is arranged on a plurality of each display units of combination；Wherein, the synchronous sequence of the display signal of display unit starts to generate by getting the same initial time node of clock circuit, so that the control terminal connecting with combination gets the time on clock circuit, and windowing status command is sent in same initial time node and synchronizes window display display signal to combination.
Description
Technical field
The present invention relates to combination technical field more particularly to a kind of master control borad of joined screen display unit, combination are aobvious
Show system and its windowing method.
Background technique
Display technology branch of the combination as profession, future development are worthy of expecting.Combination has very big combination empty
Between: it can both splice or use large screen splicing using smaller screen；Both can be spliced with one-to-one single screen, it can also a pair of M × N
Whole screen splicing；It can also big smaller screen mixing assembly.The system scale that liquid crystal spliced curtain wall system can be proposed according to client and
Application requirement selects suitable product and connecting method according to the use environment of system.In terms of current industrial chain preparation,
Fast traffic lane has been stepped into its development.Current large-screen splicing shows that wall market development situation is fine, participates in the country of the market competition
Outer manufacturer is more, and technology school is also that a hundred flowers blossom, the 3LCD (three pieces liquid crystal) of micro display (MD), LCoS (Novel reflection-type skill
Art), the PDP (plasma) of DLP (digital light transmission processor) and plate (FPD), LCD and BSV-LED backlight combination etc. all
Capture respective target market with oneself unique technology, but LED display occupies outdoor advantage, and MD projection occupy it is indoor excellent
Gesture.From the point of view of market prospects, the application market of combination is still based on specialized market at present.
If each display unit generates synchronization signal by respectively internal synchronous generator, often on combination
One display unit has oneself a set of synchronization signal, even if each display unit uses the field frequency and pixel of identical display
Clock frequency, the synchronization signal of each display unit or mutually indepedent not correlation.In order to realize each display unit
The synchronization of display, and windowing state synchronized, existing technology are each display units of being connected using synchronous cable, pass through cable
It is synchronous to realize to transmit synchronization pulse.Although this method can solve the stationary problem between display unit, but need
Additional cable is wanted, to increase the complexity that cable connects after combination, while will appear line synchro poor contact and causing
Sync break the technical issues of.
Summary of the invention
Master control borad, splicing wall display system and its windowing side of a kind of joined screen display unit provided in an embodiment of the present invention
Method solves at present using each display unit of synchronous cable series connection, realizes synchronization by cable transmission synchronization pulse
Scheme due to needing additional cable, thus the line synchro for increasing the complexity that cable connects after combination, while occurring
Poor contact and caused by sync break the technical issues of.
A kind of master control borad of joined screen display unit provided in an embodiment of the present invention, comprising:
A plurality of each display units of combination are arranged in a plurality of clock circuits, each described clock circuit
On；
Wherein, the synchronous sequence of the display signal of the display unit is by getting the same initial of the clock circuit
Timing node starts to generate, so that the control terminal connecting with the combination gets the time on the clock circuit, and
The same initial time node transmission windowing status command is synchronized to the combination shows signal described in window display.
Preferably, the clock circuit is electrically connected with battery, and the battery is mounted on the master control borad.
Preferably, the battery is button cell.
Preferably, it is provided with a register in the clock circuit, is used for counting clock number, and the weight when counting down to n
It is newly restored to the initial time node to be counted again, wherein n is the integral multiple of field duration multiplied by the clock cycle；
Wherein, the period that counts of the clock circuit is delayed greater than the maximum network of the windowing status command.
Preferably, when the control terminal connecting with the combination gets the time on the clock circuit, and same
The initial time node sends windowing status command to the display unit of the combination, and the display unit is next
The start node after a counting again latches the windowing status command, synchronizes out in the vertical blanking period of display timing
Window shows the display signal.
Preferably, clock alignment of a plurality of clock circuits before the synchronous window display of the combination is one
It causes.
A kind of splicing wall display system provided in an embodiment of the present invention, comprising:
Control terminal and combination；
The combination includes a plurality of display units and the spelling as mentioned in the embodiments of the present invention described in any one
The master control borad of wall display unit is connect, each display unit is correspondingly arranged on a master control borad；
The control terminal and the combination communicate to connect.
A kind of windowing method of splicing wall display system provided in an embodiment of the present invention, comprising:
The time of the display unit master control borad of combination is got by control terminal；
Windowing status command is being sent with the consistent initial time node of the clock circuit of the master control borad by control terminal
To the display unit, so that next initial time node of the display unit after receiving the windowing status command
The windowing status command is latched, and is configured in vertical blanking period, and synchronous window display.
Preferably, before control terminal gets the time of display unit master control borad of combination further include:
The synchronous sequence for controlling the display signal of the display unit is by obtaining the same initial of the clock circuit
Node starts to generate.
Preferably, the synchronous sequence for controlling the display signal of the display unit is by obtaining the same of the clock circuit
One start node starts before generation further include:
It is consistent by clock alignment of the clock circuit before the synchronous window display of the combination.
As can be seen from the above technical solutions, the embodiment of the present invention has the advantage that
Master control borad, splicing wall display system and its windowing side of a kind of joined screen display unit provided in an embodiment of the present invention
Method, wherein the master control borad of joined screen display unit includes: a plurality of clock circuits, each clock circuit is arranged in combination
A plurality of each display units on；Wherein, the synchronous sequence of the display signal of display unit is by getting clock circuit
Same initial time node start to generate so that the control terminal connecting with combination gets the time on clock circuit, and
Windowing status command, which is sent, in same initial time node synchronizes window display display signal to combination.The present embodiment
In, start to produce by getting the same initial time node of clock circuit by the synchronous sequence of the display signal of display unit
It is raw, so that the control terminal connecting with combination gets the time on clock circuit, and opened in the transmission of same initial time node
Window status command synchronizes window display to combination and shows signal, solves at present using each display of synchronous cable series connection
Unit realizes synchronous scheme by cable transmission synchronization pulse due to needing additional cable, to increase spelling
Connect the complexity that cable connects after wall, at the same the line synchro poor contact occurred and caused by sync break the technical issues of.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of structure of one embodiment of the master control borad of the joined screen display unit provided in the embodiment of the present invention
Schematic diagram；
Fig. 2 is a kind of structural schematic diagram of one embodiment of the splicing wall display system provided in the embodiment of the present invention；
Fig. 3 is a kind of stream of one embodiment of the windowing method of the splicing wall display system provided in the embodiment of the present invention
Journey schematic diagram；
Fig. 4 is a kind of another embodiment of the windowing method of the splicing wall display system provided in the embodiment of the present invention
Flow diagram；
Fig. 5 is the synchronous sequence schematic diagram of display unit and clock circuit；
Fig. 6 is window display application examples schematic diagram.
Specific embodiment
Master control borad, splicing wall display system and its windowing side of a kind of joined screen display unit provided in an embodiment of the present invention
Method solves at present using each display unit of synchronous cable series connection, realizes synchronization by cable transmission synchronization pulse
Scheme due to needing additional cable, thus the line synchro for increasing the complexity that cable connects after combination, while occurring
Poor contact and caused by sync break the technical issues of.
In order to make the invention's purpose, features and advantages of the invention more obvious and easy to understand, below in conjunction with the present invention
Attached drawing in embodiment, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that disclosed below
Embodiment be only a part of the embodiment of the present invention, and not all embodiment.Based on the embodiments of the present invention, this field
Those of ordinary skill's all other embodiment obtained without making creative work, belongs to protection of the present invention
Range.
Referring to Fig. 1, a kind of one embodiment of the master control borad of the joined screen display unit provided in the embodiment of the present invention
Include:
A plurality of each display units 1 of combination are arranged in a plurality of clock circuits 11, each clock circuit 11
On；
Wherein, the synchronous sequence of the display signal of display unit 1 is by getting the same initial time of clock circuit 11
Node starts to generate, so that the control terminal connecting with combination gets the time on clock circuit 11, and when same initial
Intermediate node sends windowing status command and synchronizes window display display signal to combination.
Further, clock circuit 11 is electrically connected with battery, and battery is mounted on master control borad.
Further, battery is button cell.
Further, it is provided with a register in clock circuit 11, is used for counting clock number, and the weight when counting down to n
It is newly restored to initial time node to be counted again, wherein n is the integral multiple of field duration multiplied by the clock cycle；
Wherein, the period that counts of clock circuit 11 is delayed greater than the maximum network of windowing status command.
Further, when the control terminal connecting with combination gets the time on clock circuit 11, and same initial
Timing node sends windowing status command to the display unit 1 of combination, and display unit 1 is initial after next counting again
Node latches windowing status command, synchronizes window display in the vertical blanking period of display timing and shows signal.
Further, clock alignment of a plurality of clock circuits 11 before the synchronous window display of combination is consistent.
It should be noted that the present embodiment be by the way that clock circuit is added inside the master control board card of each display unit,
Clock circuit is powered using battery, and the clock circuit of every piece of master control borad of the same wall is calibrated to unanimously before upper wall, Mei Gexian
Show the synchronous sequence of unit by obtaining the timing node of clock circuit while generating, so that is shown between completing each unit is same
Step.It controls PC and sends windowing status command by obtaining the timing node of clock circuit, display unit is upon receipt of the instructions
Next timing node latches simultaneously, and configures in blanking interval, to complete the synchronization of windowing state.
It is described below with a concrete application scene, application examples as shown in Figure 6 includes:
1. the master control borad of each display unit increases clock circuit, clock circuit is powered by onboard button cell, button
Battery is interior after board powers on voluntarily to charge, and to ensure the reliability of clock circuit, master control board card is being installed in display unit
Unify calibration clock circuit before to unanimously.There is a register count clock number in clock circuit, and when counting down to n
Clear 0 counts again, and n must be the integral multiple of field duration multiplied by the clock cycle.As shown in Figure 5.
2. the synchronous sequence of the display of each display unit starts to produce by obtaining the same timing node 0 of clock circuit
It is raw, to guarantee the consistency of synchronous sequence between display unit.As shown in Figure 5.
3. the upper layer end PC sends windowing status command by obtaining the time on master control borad, and in timing node 0, display is single
Member is executed in next 0 latch instruction of timing node, and in the vertical blanking period of display timing.As shown in fig. 6, each in order to guarantee
Display unit can receive instruction, and the counting period of clock circuit has to be larger than the maximum network delay of instruction, i.e. clock
Period is delayed multiplied by n > instruction maximum network.
It should be noted that Fig. 5 and Fig. 6 show twice that the counting period is the field duration, it is practical to guarantee to count the period
It is to have to be larger than the maximum network delay of instruction in the integral multiple of field duration and the counting period of clock circuit
In the present embodiment, by the synchronous sequence of the display signal of display unit 1 by getting the same of clock circuit 11
One initial time node starts to generate, so that the control terminal connecting with combination gets the time on clock circuit 11, and
Same initial time node sends windowing status command and synchronizes window display display signal to combination, and solve makes at present
With each display unit of synchronous cable series connection, realize synchronous scheme due to needing volume by cable transmission synchronization pulse
Outer cable, to increase the complexity that cable after combination connects, while the line synchro poor contact occurred and caused by
The technical issues of sync break, and the link of the line synchro after display unit is saved, to reduce the complexity that cable links, have
Effect avoids stationary problem caused by the synchronization cable poor contact often occurred in use.
Referring to Fig. 2, a kind of one embodiment of the splicing wall display system provided in the embodiment of the present invention includes:
Control terminal 21 and combination 22；
Combination 22 includes a plurality of display units 221 and any one splicing as mentioned in the embodiments of the present invention
The master control borad 222 of 22 display unit 221 of wall, each display unit 221 are correspondingly arranged on a master control borad 222；
Control terminal 21 and combination 22 communicate to connect.
In the present embodiment, by the synchronous sequence of the display signal of display unit 221 by getting the same of clock circuit
One initial time node starts to generate, so that the control terminal 21 connecting with combination 22 gets the time on clock circuit, and
Windowing status command is sent in same initial time node and synchronizes window display display signal to combination 22, solves mesh
It is preceding to use each display unit of synchronous cable series connection, realize synchronous scheme due to needing by cable transmission synchronization pulse
Want additional cable, to increase the complexity that cable after combination connects, while the line synchro poor contact occurred and make
At sync break the technical issues of, and save the line synchro after display unit link, thus reduce cable link complexity
Property, effectively prevent stationary problem caused by the synchronization cable poor contact often occurred in.
Referring to Fig. 3, one of a kind of windowing method of the splicing wall display system provided in the embodiment of the present invention is implemented
Example include:
301, the time of the display unit master control borad of combination is got by control terminal；
In the present embodiment, when each display unit of combination needs synchronous windowing, it is necessary first to be obtained by control terminal
To the time of the display unit master control borad of combination.
302, windowing status command is being sent with the consistent initial time node of the clock circuit of master control borad by control terminal
To display unit, so that next initial time node of the display unit after receiving windowing status command latches windowing state
Instruction, and configured in vertical blanking period, and synchronous window display.
After the time for the display unit master control borad for getting combination by control terminal, need by control terminal with
The consistent initial time node of the clock circuit of master control borad sends windowing status command to display unit, so that display unit is connecing
Next initial time node after receiving windowing status command latches windowing status command, and is configured in vertical blanking period,
And synchronous window display.
In the present embodiment, by the synchronous sequence of the display signal of display unit by get clock circuit it is same just
Beginning timing node starts to generate, so that the control terminal connecting with combination gets the time on clock circuit, and same first
Beginning timing node sends windowing status command and synchronizes window display display signal to combination, solves current use and synchronizes
The each display unit of cable series connection realizes synchronous scheme due to needing additional line by cable transmission synchronization pulse
Cable, to increase the complexity that cable after combination connects, while the line synchro poor contact occurred and caused by synchronize
Disconnected technical problem.
The above is that the process of the windowing method of splicing wall display system is described in detail, below will be to additional process
It is described in detail, referring to Fig. 4, a kind of windowing method of the splicing wall display system provided in the embodiment of the present invention is another
One embodiment includes:
It 401, is consistent by clock alignment of the clock circuit before the synchronous window display of combination；
In the present embodiment, when each display unit of combination needs synchronous windowing, it is necessary first to spell clock circuit
The clock alignment connect before the synchronous window display of wall is consistent.
402, the synchronous sequence of the display signal of display unit is controlled as by the same start node for obtaining clock circuit
Start to generate；
After being consistent by clock alignment of the clock circuit before the synchronous window display of combination, need to control display
The synchronous sequence of the display signal of unit is to start to generate by obtaining the same start node of clock circuit.
403, the time of the display unit master control borad of combination is got by control terminal；
When the synchronous sequence of the display signal of control display unit is to be opened by obtaining the same start node of clock circuit
Begin after generating, needs to get the time of the display unit master control borad of combination by control terminal.
404, windowing status command is being sent with the consistent initial time node of the clock circuit of master control borad by control terminal
To display unit, so that next initial time node of the display unit after receiving windowing status command latches windowing state
Instruction, and configured in vertical blanking period, and synchronous window display.
After the time for the display unit master control borad for getting combination by control terminal, need by control terminal with
The consistent initial time node of the clock circuit of master control borad sends windowing status command to display unit, so that display unit is connecing
Next initial time node after receiving windowing status command latches windowing status command, and is configured in vertical blanking period,
And synchronous window display.
In the present embodiment, by the synchronous sequence of the display signal of display unit by get clock circuit it is same just
Beginning timing node starts to generate, so that the control terminal connecting with combination gets the time on clock circuit, and same first
Beginning timing node sends windowing status command and synchronizes window display display signal to combination, solves current use and synchronizes
The each display unit of cable series connection realizes synchronous scheme due to needing additional line by cable transmission synchronization pulse
Cable, to increase the complexity that cable after combination connects, while the line synchro poor contact occurred and caused by synchronize
Disconnected technical problem, and save the link of the line synchro after display unit and effectively avoided to reduce the complexity of cable link
Stationary problem caused by the synchronization cable poor contact often occurred in use.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed system, device and method can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit
It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components
It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or
The mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, the indirect coupling of device or unit
It closes or communicates to connect, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or the network equipment etc.) executes the complete of each embodiment the method for the present invention
Portion or part steps.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic or disk etc. are various can store journey
The medium of sequence code.
The above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although referring to before
Stating embodiment, invention is explained in detail, those skilled in the art should understand that: it still can be to preceding
Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these
It modifies or replaces, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (7)
1. a kind of master control borad of joined screen display unit characterized by comprising
A plurality of clock circuits, each described clock circuit are arranged on a plurality of each display units of combination；
Wherein, the synchronous sequence of the display signal of the display unit is by getting the same initial time of the clock circuit
Node starts to generate, so that the control terminal connecting with the combination gets the time on the clock circuit, and same
The initial time node transmission windowing status command is synchronized to the combination shows signal described in window display；
It is provided with a register in the clock circuit, is used for counting clock number, and is restored to when counting down to n described
Initial time node is counted again, and wherein n is the integral multiple of field duration multiplied by the clock cycle；
Wherein, the period that counts of the clock circuit is delayed greater than the maximum network of the windowing status command；
When the control terminal connecting with the combination gets the time on the clock circuit, and in the same initial time
Node sends windowing status command to the display unit of the combination, and the display unit is after next counting again
The start node latch the windowing status command, synchronize in the vertical blanking period of display timing and shown described in window display
Show signal.
2. the master control borad of joined screen display unit according to claim 1, which is characterized in that the clock circuit electrically connects
It is connected to battery, the battery is mounted on the master control borad.
3. the master control borad of joined screen display unit according to claim 2, which is characterized in that the battery is button electricity
Pond.
4. the master control borad of joined screen display unit according to claim 1, which is characterized in that a plurality of clock circuits
Clock alignment before the synchronous window display of the combination is consistent.
5. a kind of splicing wall display system characterized by comprising
Control terminal and combination；
The combination includes a plurality of display units, and the combination as described in any one of Claims 1-4 is shown
The master control borad of unit, each display unit are correspondingly arranged on a master control borad；
The control terminal and the combination communicate to connect.
6. a kind of windowing method of splicing wall display system characterized by comprising
The time of the display unit master control borad of combination is got by control terminal, the master control borad includes: a plurality of clock electricity
Road, each described clock circuit are arranged on a plurality of each display units of combination；
Windowing status command is being sent to institute with the consistent initial time node of the clock circuit of the master control borad by control terminal
Display unit is stated, so that next initial time node of the display unit after receiving the windowing status command latches
The windowing status command, and configured in vertical blanking period, and synchronous window display；
Control terminal was got before the time of display unit master control borad of combination further include:
The synchronous sequence of the display signal of the display unit is controlled as by the same start node for obtaining the clock circuit
Start to generate.
7. the windowing method of splicing wall display system according to claim 6, which is characterized in that control the display unit
The synchronous sequence of display signal be before starting generation by obtaining the same start node of the clock circuit further include:
It is consistent by clock alignment of the clock circuit before the synchronous window display of the combination.
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| CN201511029321.5A CN105489155B (en) | 2015-12-30 | 2015-12-30 | Master control borad, splicing wall display system and its windowing method of joined screen display unit |
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| CN201511029321.5A CN105489155B (en) | 2015-12-30 | 2015-12-30 | Master control borad, splicing wall display system and its windowing method of joined screen display unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108563415A (en) * | 2018-05-07 | 2018-09-21 | 威创集团股份有限公司 | A kind of method for burn-recording of self-defined desktop |
| CN110677553B (en) * | 2019-10-31 | 2020-11-24 | 威创集团股份有限公司 | Method, device, system and equipment for synchronously displaying signals of splicing wall |
| CN112788370A (en) * | 2019-11-08 | 2021-05-11 | 京东方科技集团股份有限公司 | Display control method, display control device, display system, electronic device, and storage medium |
| CN112995531B (en) * | 2019-12-13 | 2023-02-10 | 浙江宇视科技有限公司 | Synchronous splicing display method and device, decoding splicing controller and medium |
| TWI731691B (en) * | 2020-05-21 | 2021-06-21 | 緯創資通股份有限公司 | Light-emitting diode system and module |
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| CN102262523A (en) * | 2011-08-23 | 2011-11-30 | 威盛电子股份有限公司 | Display card, multi-screen display system and multi-screen synchronous display method |
| WO2013125077A1 (en) * | 2012-02-24 | 2013-08-29 | シャープ株式会社 | Liquid-crystal display device |
| CN104375789A (en) * | 2013-08-14 | 2015-02-25 | 杭州海康威视数字技术股份有限公司 | Synchronous displaying method and system of tiled display screen |
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