CN105979335A - Novel multistage synchronous display method for spliced screen - Google Patents
Novel multistage synchronous display method for spliced screen Download PDFInfo
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- CN105979335A CN105979335A CN201610564188.1A CN201610564188A CN105979335A CN 105979335 A CN105979335 A CN 105979335A CN 201610564188 A CN201610564188 A CN 201610564188A CN 105979335 A CN105979335 A CN 105979335A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
- H04N21/4305—Synchronising client clock from received content stream, e.g. locking decoder clock with encoder clock, extraction of the PCR packets
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
- G06F3/1438—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display using more than one graphics controller
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
- G06F3/1446—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display display composed of modules, e.g. video walls
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Graphics (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention provides a novel multistage synchronous display method for a spliced screen. The method comprises the following steps: filling a gap between liquid crystal display screens by adopting a three-color LED lamp; writing the same EDID data in each output port of a selected display card; numbering each output port of the display card according to a display unit of the spliced screen and the three-color LED lamp that fills the gap; printing a timestamp for each frame of data by an encoder; displaying display signals output by the numbered display card and the three-color LED lamp on a single logic screen via a pure hardware workstation; interacting and synchronizing the timestamp of a current processing frame by a plurality of encoders through Ethernet messages; and adjusting the sending rate by the encoders according to received reports. According to the method provided by the invention, the same EDID data is written in each output port of the selected display card, and each output port of the display card is numbered according to the display unit of the spliced screen, in order to solve the technical problem of display asynchronization of the display cards, and the internal clock of a display module in each encoder is synchronized.
Description
Technical field
The present invention relates to Display Technique field, particularly relate to a kind of multistage synchronous display method of new mosaic screen.
Background technology
Mosaic screen is a complete liquid crystal splicing display unit, can use separately as display, can use with liquid crystal-spliced one-tenth jumbotron again.Demand is used, it is achieved the variable changeable large-size screen monitors function that also can diminish greatly: single screen segmentation shows, single screen individually shows, combination in any shows, full frame screen display liquid crystal-spliced, perpendicular, the optional compensation of framing mask or covering according to difference.
In present large screen splicing display market application, work station is often equipped with one or more video card, owing to the wall block resolution of LED is certain, the resolution of every video card delivery the most likely can be caused to be not quite similar, thus unity logic screen cannot be configured as, so will result in and between video card, show nonsynchronous problem.
Summary of the invention
A kind of new mosaic screen synchronous display method that the embodiment of the present invention provides, in order to solve problem present in background technology, technical solution of the present invention is as follows:
A kind of multistage synchronous display method of new mosaic screen, including:
Use three-color LED light that the gap between liquid crystal display screen is filled with；
Each output port of selected video card is write identical EDID data；
Each output port of video card is numbered according to the display unit of mosaic screen and the three-color LED light of gap filling；
Encoder is that every frame data stamp timestamp；
Display signal and the three-color LED light of the video card output after numbering are carried out the display of unity logic screen by pure hardware effort station；
Being sequentially connected with by line synchro between multiple decoders, using one of them decoder as main equipment, remaining decoder is as from equipment, and main equipment is to from equipment tranmitting data register signal and synchrodata, from the equipment internal clocking by clock signal synchronization oneself；
Synchronized the timestamp of frame under process by Ethernet interacting message between multiple decoders；
Decoder sends data receiver report to encoder, and described encoder adjusts transmission rate according to the report received；
One decoder of main equipment stabbed to the very first time that the request of remaining all decoder is current, the very first time responding oneself from remaining decoder of equipment stabs to the decoder as main equipment, main equipment receives all from the very first time stamp that equipment sends, choose the numerical value minimum very first time to stab as standard, it is sent to all of from equipment, respectively aliging to the very first time stamp that described numerical value is minimum from the very first time stamp of equipment, stamp of the described very first time is timestamp during code stream entrance decoder module；
One decoder of main equipment asks the second current timestamp to remaining all decoder, responds the second timestamp of oneself to the decoder as main equipment from remaining decoder of equipment；Main equipment receives all the second timestamps sent from equipment, choose the second minimum timestamp of numerical value as standard, it is sent to all of from equipment, respectively from the second timestamp of equipment to minimum the second timestamp alignment of described numerical value, the second timestamp be decoded after send into the timestamp of mixing module.
The inventive method writes identical EDID data to each output port of selected video card, each output port of video card is numbered according to the display unit of mosaic screen, solve that display nonsynchronous technical problem occurs between video card, the internal clocking of the display module in each decoder is synchronized, the frame of each decoder inter-process is synchronized, the most really realizes image synchronization and show on screen.
Detailed description of the invention
A kind of multistage synchronous display method of new mosaic screen, including:
Use three-color LED light that the gap between liquid crystal display screen is filled with；
Each output port of selected video card is write identical EDID data；
Each output port of video card is numbered according to the display unit of mosaic screen and the three-color LED light of gap filling；
Encoder is that every frame data stamp timestamp；
Display signal and the three-color LED light of the video card output after numbering are carried out the display of unity logic screen by pure hardware effort station；
Being sequentially connected with by line synchro between multiple decoders, using one of them decoder as main equipment, remaining decoder is as from equipment, and main equipment is to from equipment tranmitting data register signal and synchrodata, from the equipment internal clocking by clock signal synchronization oneself；
Synchronized the timestamp of frame under process by Ethernet interacting message between multiple decoders；
Decoder sends data receiver report to encoder, and described encoder adjusts transmission rate according to the report received；
One decoder of main equipment stabbed to the very first time that the request of remaining all decoder is current, the very first time responding oneself from remaining decoder of equipment stabs to the decoder as main equipment, main equipment receives all from the very first time stamp that equipment sends, choose the numerical value minimum very first time to stab as standard, it is sent to all of from equipment, respectively aliging to the very first time stamp that described numerical value is minimum from the very first time stamp of equipment, stamp of the described very first time is timestamp during code stream entrance decoder module；
One decoder of main equipment asks the second current timestamp to remaining all decoder, responds the second timestamp of oneself to the decoder as main equipment from remaining decoder of equipment；Main equipment receives all the second timestamps sent from equipment, choose the second minimum timestamp of numerical value as standard, it is sent to all of from equipment, respectively from the second timestamp of equipment to minimum the second timestamp alignment of described numerical value, the second timestamp be decoded after send into the timestamp of mixing module.
The inventive method writes identical EDID data to each output port of selected video card, each output port of video card is numbered according to the display unit of mosaic screen, solve that display nonsynchronous technical problem occurs between video card, the system clock of multiple decoders is synchronized, the internal clocking of the display module in each decoder is synchronized, the frame of each decoder inter-process is synchronized, the most really realizes image synchronization and show on screen.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, it is not limited to the present invention, although the present invention being described in detail with reference to previous embodiment, for a person skilled in the art, technical scheme described in foregoing embodiments still can be modified by it, or wherein portion of techniques feature is carried out equivalent.All within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (1)
1. the multistage synchronous display method of new mosaic screen, it is characterised in that including:
Use three-color LED light that the gap between liquid crystal display screen is filled with；Each output port of selected video card is write identical EDID data；
Each output port of video card is numbered according to the display unit of mosaic screen and the three-color LED light of gap filling；Encoder is that every frame data stamp timestamp；
Display signal and the three-color LED light of the video card output after numbering are carried out the display of unity logic screen by pure hardware effort station；
Being sequentially connected with by line synchro between multiple decoders, using one of them decoder as main equipment, remaining decoder is as from equipment, and main equipment is to from equipment tranmitting data register signal and synchrodata, from the equipment internal clocking by clock signal synchronization oneself；
Synchronized the timestamp of frame under process by Ethernet interacting message between multiple decoders；Decoder sends data receiver report to encoder, and described encoder adjusts transmission rate according to the report received；
One decoder of main equipment stabbed to the very first time that the request of remaining all decoder is current, the very first time responding oneself from remaining decoder of equipment stabs to the decoder as main equipment, main equipment receives all from the very first time stamp that equipment sends, choose the numerical value minimum very first time to stab as standard, it is sent to all of from equipment, respectively aliging to the very first time stamp that described numerical value is minimum from the very first time stamp of equipment, stamp of the described very first time is timestamp during code stream entrance decoder module；
One decoder of main equipment asks the second current timestamp to remaining all decoder, responds the second timestamp of oneself to the decoder as main equipment from remaining decoder of equipment；Main equipment receives all the second timestamps sent from equipment, choose the second minimum timestamp of numerical value as standard, it is sent to all of from equipment, respectively from the second timestamp of equipment to minimum the second timestamp alignment of described numerical value, the second timestamp be decoded after send into the timestamp of mixing module.
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| CN201610564188.1A CN105979335A (en) | 2016-07-18 | 2016-07-18 | Novel multistage synchronous display method for spliced screen |
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| CN201610564188.1A CN105979335A (en) | 2016-07-18 | 2016-07-18 | Novel multistage synchronous display method for spliced screen |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107068089A (en) * | 2017-04-21 | 2017-08-18 | 安徽森度科技有限公司 | Mosaic screen synchronous display method |
| CN111385521A (en) * | 2018-12-27 | 2020-07-07 | 浙江宇视科技有限公司 | Method for distributed display of user interface and decoding equipment |
| CN112463095A (en) * | 2020-12-04 | 2021-03-09 | 威创集团股份有限公司 | Multi-signal window synchronous windowing display method and device |
| WO2021088807A1 (en) * | 2019-11-08 | 2021-05-14 | 京东方科技集团股份有限公司 | Synchronous display method and system, and electronic device and computer readable medium |
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| CN103135955A (en) * | 2012-10-17 | 2013-06-05 | 深圳市骄阳数字图像技术有限责任公司 | Splicing screen synchronizer with a large resolution ratio |
| CN105609014A (en) * | 2016-04-01 | 2016-05-25 | 北京小鸟科技发展有限责任公司 | Implementation method for seamless splicing point-to-point display of liquid crystal screens |
| CN105635752A (en) * | 2016-01-27 | 2016-06-01 | 广州偕作信息科技有限公司 | Multi-level synchronous display system and method used for distributed splicing screen |
| CN105700837A (en) * | 2015-12-30 | 2016-06-22 | 广东威创视讯科技股份有限公司 | Splice screen synchronous displaying method, device and system |
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| CN107068089A (en) * | 2017-04-21 | 2017-08-18 | 安徽森度科技有限公司 | Mosaic screen synchronous display method |
| CN111385521A (en) * | 2018-12-27 | 2020-07-07 | 浙江宇视科技有限公司 | Method for distributed display of user interface and decoding equipment |
| WO2021088807A1 (en) * | 2019-11-08 | 2021-05-14 | 京东方科技集团股份有限公司 | Synchronous display method and system, and electronic device and computer readable medium |
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| CN112463095A (en) * | 2020-12-04 | 2021-03-09 | 威创集团股份有限公司 | Multi-signal window synchronous windowing display method and device |
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