CN105489155A - Master control board of display unit of joint wall, display system of joint wall, and window opening method - Google Patents
Master control board of display unit of joint wall, display system of joint wall, and window opening method Download PDFInfo
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- CN105489155A CN105489155A CN201511029321.5A CN201511029321A CN105489155A CN 105489155 A CN105489155 A CN 105489155A CN 201511029321 A CN201511029321 A CN 201511029321A CN 105489155 A CN105489155 A CN 105489155A
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- 230000001360 synchronised effect Effects 0.000 claims abstract description 72
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- 238000005516 engineering process Methods 0.000 description 5
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- 239000004973 liquid crystal related substance Substances 0.000 description 2
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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
Embodiments of the invention disclose a master control board of a display unit of a joint wall, a display system of a joint wall, and a window opening method, thereby solving the technical problems that for the traditional scheme that display units are connected in series via synchronization cables and synchronization is realized by using cables to transmit synchronous pulse signals, cable connection after wall jointing becomes more complex due to the need of additional cables and synchronization is interrupted due to bad contact of synchronization cables. The master control board of a display unit of a joint wall of the invention comprises a plurality of clock circuits, each of which is arranged on each of the plurality of display units of the joint wall. Synchronous sequences of display signals of the display units are generated from the same initial time node of obtaining the clock circuits, and a control terminal in connected with the joint wall gets the time of the clock circuits and sends a window opening state command to the joint wall at the same initial time node so as to synchronously open windows to display signals.
Description
Technical field
The present invention relates to combination technical field, particularly relate to a kind of master control borad of joined screen display unit, splicing wall display system and windowing method thereof.
Background technology
Combination as the display technique branch of specialty, future development Worth Expecting.Combination has very large interblock space: smaller screen both can have been adopted to splice, also can adopt large screen splicing; Both single screen can splice one to one, also can splice by a pair whole screen of M × N; Can also mix assembled by large smaller screen.The system scale that can propose liquid crystal spliced curtain wall system according to client and application requirement, according to the environment for use of system, select suitable product and connecting method.From current industrial chain preparation, its development steps into fast traffic lane.Current large-screen splicing display wall market development situation is fine, the domestic and international manufacturer participating in this market competition is more, technology school is also that a hundred flowers blossom, 3LCD (three liquid crystal), LCoS (Novel reflection-type technology), the DLP (digital light transmission processor) of micro-display (MD) capture respective target market with the technology of oneself uniqueness with the PDP (plasma), LCD and BSV-LED backlight combination etc. of dull and stereotyped (FPD), but LED display occupies outdoor advantage, and MD projection occupies indoor advantage.From market outlook, the application market of current combination is still based on specialized market.
If each display unit produces synchronizing signal by synchronous generator inner separately on combination, each display unit has oneself synchronizing signal a set of, even if each display unit uses field frequency and the pixel clock frequency of identical display, the synchronizing signal of each display unit or separately do not have correlativity.In order to realize the synchronous of each display unit display, and state synchronized of windowing, existing technology uses synchronous cable to connect each display unit, realizes synchronous by cable transmission synchronization pulse.Although this method can solve the stationary problem between display unit, need extra cable, thus increase the complicacy that cable connects after combination, there will be line synchro loose contact and the technical matters of sync break that causes simultaneously.
Summary of the invention
The master control borad of a kind of joined screen display unit that the embodiment of the present invention provides, splicing wall display system and windowing method thereof, solve and use at present synchronous cable to connect each display unit, synchronous scheme is realized owing to needing extra cable by cable transmission synchronization pulse, thus the complicacy that after adding combination, cable connects, the line synchro loose contact simultaneously occurred and the technical matters of sync break that causes.
The master control borad of a kind of joined screen display unit that the embodiment of the present invention provides, comprising:
A plurality of clock circuit, clock circuit described in each is arranged on a plurality of each display unit of combination;
Wherein, the synchronous sequence of the display of described display unit starts to produce by the same initial time node getting described clock circuit, make the control end be connected with described combination get time on described clock circuit, and send at same described initial time node status command of windowing and carry out display described in synchronous window display to described combination.
Preferably, described clock circuit is electrically connected with battery, and described battery is arranged on described master control borad.
Preferably, described battery is button cell.
Preferably, be provided with a register in described clock circuit, for counting clock number, and be restored to described initial time node when counting down to n and again count, wherein n is multiplied by the integral multiple that the clock period is the field duration;
Wherein, the count cycle of described clock circuit be greater than described in window the maximum network time delay of status command.
Preferably, the time on described clock circuit is got when the control end be connected with described combination, and window status command to the described display unit of described combination in same described initial time node transmission, to window described in the described start node of described display unit after the next one counts again latches status command, carry out display described in synchronous window display at the vertical blanking period of display timing generator.
Preferably, the clock alignment of a plurality of described clock circuit before the synchronous window display of described combination is consistent.
A kind of splicing wall display system that the embodiment of the present invention provides, comprising:
Control end and combination;
Described combination comprises a plurality of display unit, and mention in the embodiment of the present invention any one described in the master control borad of joined screen display unit, each described display unit correspondence is provided with master control borad described in;
Described control end and described combination communicate to connect.
The windowing method of a kind of splicing wall display system that the embodiment of the present invention provides, comprising:
The time of the display unit master control borad of combination is got by control end;
Status command of windowing is sent to described display unit at the initial time node consistent with the clock circuit of described master control borad by control end, make to window described in the next initial time node latch of described display unit after status command of windowing described in receiving status command, and being configured at vertical blanking period, and synchronous window display.
Preferably, control end also comprises before getting the time of the display unit master control borad of combination:
The synchronous sequence controlling the display of described display unit is that the same start node by obtaining described clock circuit starts to produce.
Preferably, the synchronous sequence controlling the display of described display unit is also comprise before the same start node by obtaining described clock circuit starts to produce:
Be consistent by the clock alignment of described clock circuit before the synchronous window display of described combination.
As can be seen from the above technical solutions, the embodiment of the present invention has the following advantages:
The master control borad of a kind of joined screen display unit that the embodiment of the present invention provides, splicing wall display system and windowing method thereof, wherein, the master control borad of joined screen display unit comprises: a plurality of clock circuit, and each clock circuit is arranged on a plurality of each display unit of combination; Wherein, the synchronous sequence of the display of display unit starts to produce by the same initial time node getting clock circuit, make the control end be connected with combination get time on clock circuit, and send at same initial time node status command of windowing and carry out synchronous window display display to combination.In the present embodiment, start to produce by the same initial time node getting clock circuit by the synchronous sequence of the display of display unit, the control end be connected with combination is made to get time on clock circuit, and send at same initial time node status command of windowing and carry out synchronous window display display to combination, solve and use at present synchronous cable to connect each display unit, synchronous scheme is realized owing to needing extra cable by cable transmission synchronization pulse, thus the complicacy that after adding combination, cable connects, the line synchro loose contact simultaneously occurred and the technical matters of the sync break caused.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
A kind of structural representation of an embodiment of master control borad of joined screen display unit of Fig. 1 for providing in the embodiment of the present invention;
A kind of structural representation of an embodiment of splicing wall display system of Fig. 2 for providing in the embodiment of the present invention;
A kind of schematic flow sheet of an embodiment of windowing method of splicing wall display system of Fig. 3 for providing in the embodiment of the present invention;
A kind of schematic flow sheet of another embodiment of windowing method of splicing wall display system of Fig. 4 for providing in the embodiment of the present invention;
Fig. 5 is the synchronous sequence schematic diagram of display unit and clock circuit;
Fig. 6 is window display application examples schematic diagram.
Embodiment
The master control borad of a kind of joined screen display unit that the embodiment of the present invention provides, splicing wall display system and windowing method thereof, solve and use at present synchronous cable to connect each display unit, synchronous scheme is realized owing to needing extra cable by cable transmission synchronization pulse, thus the complicacy that after adding combination, cable connects, the line synchro loose contact simultaneously occurred and the technical matters of sync break that causes.
For making goal of the invention of the present invention, feature, advantage can be more obvious and understandable, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, the embodiments described below are only the present invention's part embodiments, and the embodiment of not all.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, an embodiment of the master control borad of a kind of joined screen display unit provided in the embodiment of the present invention comprises:
A plurality of clock circuit 11, each clock circuit 11 is arranged on a plurality of each display unit 1 of combination;
Wherein, the synchronous sequence of the display of display unit 1 starts to produce by the same initial time node getting clock circuit 11, make the control end be connected with combination get time on clock circuit 11, and send at same initial time node status command of windowing and carry out synchronous window display display to combination.
Further, clock circuit 11 is electrically connected with battery, and battery is arranged on master control borad.
Further, battery is button cell.
Further, be provided with a register in clock circuit 11, for counting clock number, and be restored to initial time node when counting down to n and again count, wherein n is multiplied by the integral multiple that the clock period is the field duration;
Wherein, the count cycle of clock circuit 11 is greater than the maximum network time delay of status command of windowing.
Further, when the control end be connected with combination gets the time on clock circuit 11, and window status command to the display unit 1 of combination in same initial time node transmission, the start node of display unit 1 after the next one counts again latches status command of windowing, and carries out synchronous window display display at the vertical blanking period of display timing generator.
Further, the clock alignment of a plurality of clock circuit 11 before the synchronous window display of combination is consistent.
It should be noted that, the present embodiment is by adding clock circuit inside the master control board card of each display unit, clock circuit adopts powered battery, the clock circuit of every block master control borad of same wall is calibrated to unanimously before upper wall, the synchronous sequence of each display unit is produced by the timing node obtaining clock circuit simultaneously, thus completes show between unit synchronous.Control PC sends by the timing node obtaining clock circuit status command of windowing, and display unit next timing node upon receipt of the instructions latches simultaneously, and in blanking interval configuration, thus complete the synchronous of the state of windowing.
Be described with an embody rule scene below, application examples comprises as shown in Figure 6:
1. the master control borad of each display unit increases clock circuit, clock circuit carries button cell by plate powers, button cell after board powers in charge voluntarily, to ensure the reliability of clock circuit, master control board card before being installed in display unit unified calibration clock circuit to unanimously.Have a register count clock number in clock circuit, and clear 0 again to count when counting down to n, n is multiplied by the integral multiple that the clock period must be the field duration.As shown in Figure 5.
2. the synchronous sequence of the display of each display unit starts to produce by the same timing node 0 obtaining clock circuit, thus ensures the consistance of synchronous sequence between display unit.As shown in Figure 5.
3. upper strata PC holds the time by obtaining on master control borad, and sends at timing node 0 status command of windowing, and display unit at next timing node 0 latch instruction, and performs at the vertical blanking period of display timing generator.As shown in Figure 6, in order to ensure that each display unit can both receive instruction, the count cycle of clock circuit must be greater than the maximum network time delay of instruction, and namely the clock period is multiplied by the maximum network time delay of n> instruction.
It should be noted that, Fig. 5 and Figure 6 shows that the count cycle is the twice of field duration, actually ensureing that the count cycle is the maximum network time delay that the integral multiple of field duration and the count cycle of clock circuit must be greater than instruction
In the present embodiment, start to produce by the same initial time node getting clock circuit 11 by the synchronous sequence of the display of display unit 1, the control end be connected with combination is made to get time on clock circuit 11, and send at same initial time node status command of windowing and carry out synchronous window display display to combination, solve and use at present synchronous cable to connect each display unit, synchronous scheme is realized owing to needing extra cable by cable transmission synchronization pulse, thus the complicacy that after adding combination, cable connects, the line synchro loose contact simultaneously occurred and the technical matters of the sync break caused, and save the link of the line synchro after display unit, thus reduce the complicacy of cable link, the stationary problem that the synchronous cable loose contact that effectively prevent often appearance in use causes.
Refer to Fig. 2, an embodiment of a kind of splicing wall display system provided in the embodiment of the present invention comprises:
Control end 21 and combination 22;
Combination 22 comprises a plurality of display unit 221, and the master control borad 222 of any one combination 22 display unit 221 mentioned in the embodiment of the present invention, and each display unit 221 correspondence is provided with a master control borad 222;
Control end 21 and combination 22 communicate to connect.
In the present embodiment, start to produce by the same initial time node getting clock circuit by the synchronous sequence of the display of display unit 221, the control end 21 be connected with combination 22 is made to get time on clock circuit, and send at same initial time node status command of windowing and carry out synchronous window display display to combination 22, solve and use at present synchronous cable to connect each display unit, synchronous scheme is realized owing to needing extra cable by cable transmission synchronization pulse, thus the complicacy that after adding combination, cable connects, the line synchro loose contact simultaneously occurred and the technical matters of the sync break caused, and save the link of the line synchro after display unit, thus reduce the complicacy of cable link, the stationary problem that the synchronous cable loose contact that effectively prevent often appearance in use causes.
Refer to Fig. 3, an embodiment of the windowing method of a kind of splicing wall display system provided in the embodiment of the present invention comprises:
301, the time of the display unit master control borad of combination is got by control end;
In the present embodiment, when each display unit of combination needs synchronously to window, first need the time of the display unit master control borad being got combination by control end.
302, status command of windowing is sent to display unit by control end at the initial time node consistent with the clock circuit of master control borad, the next initial time node of display unit after receiving status command of windowing is made to latch status command of windowing, and being configured at vertical blanking period, and synchronous window display.
After the time of display unit master control borad being got combination by control end, need to send status command of windowing to display unit by control end at the initial time node consistent with the clock circuit of master control borad, the next initial time node of display unit after receiving status command of windowing is made to latch status command of windowing, and being configured at vertical blanking period, and synchronous window display.
In the present embodiment, start to produce by the same initial time node getting clock circuit by the synchronous sequence of the display of display unit, the control end be connected with combination is made to get time on clock circuit, and send at same initial time node status command of windowing and carry out synchronous window display display to combination, solve and use at present synchronous cable to connect each display unit, synchronous scheme is realized owing to needing extra cable by cable transmission synchronization pulse, thus the complicacy that after adding combination, cable connects, the line synchro loose contact simultaneously occurred and the technical matters of the sync break caused.
The above is described in detail the process of the windowing method of splicing wall display system, to be described in detail additional process below, refer to Fig. 4, another embodiment of the windowing method of a kind of splicing wall display system provided in the embodiment of the present invention comprises:
401, be consistent by the clock alignment of clock circuit before the synchronous window display of combination;
In the present embodiment, when each display unit of combination needs synchronously to window, it is consistent for first needing the clock alignment of clock circuit before the synchronous window display of combination.
402, the synchronous sequence controlling the display of display unit is start to produce by the same start node of acquisition clock circuit;
When by the clock alignment of clock circuit before the synchronous window display of combination be consistent after, need the synchronous sequence of the display controlling display unit to be that same start node by obtaining clock circuit starts to produce.
403, the time of the display unit master control borad of combination is got by control end;
When the synchronous sequence of display controlling display unit is, after same start node by obtaining clock circuit starts to produce, need the time of the display unit master control borad being got combination by control end.
404, status command of windowing is sent to display unit by control end at the initial time node consistent with the clock circuit of master control borad, the next initial time node of display unit after receiving status command of windowing is made to latch status command of windowing, and being configured at vertical blanking period, and synchronous window display.
After the time of display unit master control borad being got combination by control end, need to send status command of windowing to display unit by control end at the initial time node consistent with the clock circuit of master control borad, the next initial time node of display unit after receiving status command of windowing is made to latch status command of windowing, and being configured at vertical blanking period, and synchronous window display.
In the present embodiment, start to produce by the same initial time node getting clock circuit by the synchronous sequence of the display of display unit, the control end be connected with combination is made to get time on clock circuit, and send at same initial time node status command of windowing and carry out synchronous window display display to combination, solve and use at present synchronous cable to connect each display unit, synchronous scheme is realized owing to needing extra cable by cable transmission synchronization pulse, thus the complicacy that after adding combination, cable connects, the line synchro loose contact simultaneously occurred and the technical matters of the sync break caused, and save the link of the line synchro after display unit, thus reduce the complicacy of cable link, the stationary problem that the synchronous cable loose contact that effectively prevent often appearance in use causes.
Those skilled in the art can be well understood to, and for convenience and simplicity of description, the system of foregoing description, the specific works process of device and unit, with reference to the corresponding process in preceding method embodiment, can not repeat them here.
In several embodiments that the application provides, should be understood that, disclosed system, apparatus and method, can realize by another way.Such as, device embodiment described above is only schematic, such as, the division of described unit, be only a kind of logic function to divide, actual can have other dividing mode when realizing, such as multiple unit or assembly can in conjunction with or another system can be integrated into, or some features can be ignored, or do not perform.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, and the indirect coupling of device or unit or communication connection can be electrical, machinery or other form.
The described unit illustrated as separating component or can may not be and physically separates, and the parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of unit wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, also can be that the independent physics of unit exists, also can two or more unit in a unit integrated.Above-mentioned integrated unit both can adopt the form of hardware to realize, and the form of SFU software functional unit also can be adopted to realize.
If described integrated unit using the form of SFU software functional unit realize and as independently production marketing or use time, can be stored in a computer read/write memory medium.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words or all or part of of this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, ROM (read-only memory) (ROM, Read-OnlyMemory), random access memory (RAM, RandomAccessMemory), magnetic disc or CD etc. various can be program code stored medium.
The above, above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a master control borad for joined screen display unit, is characterized in that, comprising:
A plurality of clock circuit, clock circuit described in each is arranged on a plurality of each display unit of combination;
Wherein, the synchronous sequence of the display of described display unit starts to produce by the same initial time node getting described clock circuit, make the control end be connected with described combination get time on described clock circuit, and send at same described initial time node status command of windowing and carry out display described in synchronous window display to described combination.
2. the master control borad of joined screen display unit according to claim 1, is characterized in that, described clock circuit is electrically connected with battery, and described battery is arranged on described master control borad.
3. the master control borad of joined screen display unit according to claim 2, is characterized in that, described battery is button cell.
4. the master control borad of joined screen display unit as claimed in any of claims 1 to 3, it is characterized in that, a register is provided with in described clock circuit, for counting clock number, and be restored to described initial time node when counting down to n and again count, wherein n is multiplied by the integral multiple that the clock period is the field duration;
Wherein, the count cycle of described clock circuit be greater than described in window the maximum network time delay of status command.
5. the master control borad of joined screen display unit according to claim 4, it is characterized in that, the time on described clock circuit is got when the control end be connected with described combination, and window status command to the described display unit of described combination in same described initial time node transmission, to window described in the described start node of described display unit after the next one counts again latches status command, carry out display described in synchronous window display at the vertical blanking period of display timing generator.
6. the master control borad of joined screen display unit according to claim 5, is characterized in that, the clock alignment of a plurality of described clock circuit before the synchronous window display of described combination is consistent.
7. a splicing wall display system, is characterized in that, comprising:
Control end and combination;
Described combination comprises a plurality of display unit, and as the master control borad of the joined screen display unit in claim 1 to 6 as described in any one, each described display unit correspondence is provided with master control borad described in;
Described control end and described combination communicate to connect.
8. a windowing method for splicing wall display system, is characterized in that, comprising:
The time of the display unit master control borad of combination is got by control end;
Status command of windowing is sent to described display unit at the initial time node consistent with the clock circuit of described master control borad by control end, make to window described in the next initial time node latch of described display unit after status command of windowing described in receiving status command, and being configured at vertical blanking period, and synchronous window display.
9. the windowing method of splicing wall display system according to claim 8, is characterized in that, control end also comprises before getting the time of the display unit master control borad of combination:
The synchronous sequence controlling the display of described display unit is that the same start node by obtaining described clock circuit starts to produce.
10. the windowing method of splicing wall display system according to claim 9, is characterized in that, the synchronous sequence controlling the display of described display unit is also comprise before the same start node by obtaining described clock circuit starts to produce:
Be consistent by the clock alignment of described clock circuit before the synchronous window display of described 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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| CN105489155B CN105489155B (en) | 2019-09-17 |
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| CN110677553A (en) * | 2019-10-31 | 2020-01-10 | 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 |
| CN112995531A (en) * | 2019-12-13 | 2021-06-18 | 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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| CN110677553A (en) * | 2019-10-31 | 2020-01-10 | 威创集团股份有限公司 | Method, device, system and equipment for synchronously displaying signals of splicing wall |
| 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 |
| WO2021088924A1 (en) * | 2019-11-08 | 2021-05-14 | 京东方科技集团股份有限公司 | Display control method and device, display system, electronic device and storage medium |
| CN112995531A (en) * | 2019-12-13 | 2021-06-18 | 浙江宇视科技有限公司 | Synchronous splicing display method and device, decoding splicing controller and 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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| CN105489155B (en) | 2019-09-17 |
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