Genlock Cascading application

Technical Proposal Time:2022-01-13

Compare to civil used LCD screenfresh emerging LED screen secure apparent advantage in color gamut, brightness, gray scale etc, especially in commercial venue. As the key peripheral equipment supplierVDWALL continually dedicated to providing solution with realistic scenery , Genlock cascading is one of the most common and important technique.    

Image clarity evolution is the history of improving input signal quality, from analogue signal to digital signal, from 2K to 4k then the upcoming 8K resolution. Though all the video processor vendors are preparing for the arrival of 8K eraseems chip solution provider encounter unexpected obstacles, so the 8K processor is still in pregnancy.

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In the great revolution of pursuing crisp detail, we introduced Genlock cascading technology to upgrade input resolution and output driving capability. So what is Genlcok Cascading? in a word, multiple processor synchronously drive LED screen, with no image crack or misalignment.

The following diagram is a typical Genlock application, core device is media server and 4K Genlock processor A65.

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As the diagram, LED screen resolution is 10944W*3968H, 6 A65 provide 11520*4320 input resolution and output driving capability, to fully develop the performance of this fine pitch LED screen, bring impeccable visual experience.

Solution brief introduction

1:  6 A65 completely synchronized via Genlockwithout image crack  

24K media server generates 6 synchronous HDMI signal to A65

Sometimes I wonder, though CPU is called processor, video processor is also called processor

however

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Configuration procedure is as following picture

1Configure video server mosaic setup, which will provide 11520*4320 synchronous input resolutionbelow is Nvidia graphics setup for reference.

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2Set window size 10944*3968 for playing software, varies from different media server software.

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3Mosaic overlap setup. For this project, the upper unit screen height is 2048 pixels, the lower unit screen resolution is 1920, so the overlapped pixels is (2160-2048=112).

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4Final step is video processor configurationconnect Genlock cable from master A65 to slave A65, manual crop parameters is as following.

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After these 4 steps , Genlock cascading setup is complete. If need any detailed info or further discussion, welcome to leave a message.


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