Ultra-high resolution input and multi-output video vertical extension and segmentation device

Abstract

The invention relates to an ultra-high resolution input and multi-output video vertical extension and segmentation device, which is connected with a computer and a display device. The device comprises at least one video input interface with ultra-high resolution input capability, a programmable EDID (extended display identification data) circuit connected with the video input interface, an input video frame cache circuit connected with the output end of the video input interface, an output video frame synchronous generation circuit connected with the output end of the input video frame cache circuit and a plurality of video output interfaces connected with the output end of the output video frame synchronous generation circuit. By adopting the device, a plurality of vertical longitudinal screens can be extended from single high-resolution input for constituting the large screen, and the price is also very low. The vertical high resolution multi-screen high-performance extension can be really realized.

Description

technical field [0001] The invention relates to a device capable of vertically expanding and dividing an input ultra-high resolution video signal into multiple display outputs. Background technique [0002] In media advertisements, exhibition promotions, etc., it is often necessary to use multiple display devices to form an overall picture to form a larger screen. Some applications require the use of multiple display devices to be vertically spliced ​​​​to form a whole large picture in the vertical direction. At present, special splicing displays can generally be used to realize this application. The disadvantage of using special splicing displays is that it is expensive due to special design, and the total resolution is not high (generally no more than 1920×1200 resolution). The actual total effective resolution is the same as the physical resolution of a single screen, and cannot reach the sum of the total physical resolutions of multiple screens. If you do not use a spec...

AI Technical Summary

Problems solved by technology

[0002] In media advertisements, exhibition promotions, etc., it is often necessary to use multiple display devices to form an overall picture to form a larger screen. In some applications, multiple display devices need to be vertically spliced ​​to form a whole large picture in the vertical direction. At present, special splicing displays can generally be used to realize this application. The disadvantage of using special splicing displays is that it is expensive due to special design, and the total resolution is not high (generally no more than 1920×1200 resolution). The actual total effective resolution is the same as the physical resolution of a single screen, and cannot reach the sum of the total physical resolutions of multiple screens

If you do not use a special splicing screen, you can use a multi-screen graphics card or an existing splicing device. The multiple outputs of the former multi-screen graphics card are connected to multiple displays, and then the vertical expansion mode of the multi-screen graphics card is used to achieve vertical multi-screen vertical orientation. The main problem of the method of forming a multi-screen large picture is that the support for 3D applications is not good, and the use of multi-screen graphics cards is limited in some occasions; There is the same problem as the multi-screen graphics card. For the splicer that is not based on the output of the multi-screen graphics card, the image splicing is the splicing of multiple inputs or the enlargement of the picture in the vertical expansion, and it is impossible to realize the vertical expansion of a single high-resolution input. The effect of multiple screens forming a large picture is expensive at the same time

[0003] At present, the output of a single computer interface can support ultra-high resolution output that is more than twice full HD, and there have been expansion devices that can expand a single high-resolution input screen to multiple displays on the market. The expansion of the output, so not only the connection is simple and the application is convenient, but also it will not have any impact on the computer's output graphics performance, especially for 3D applications. The ability on a display device only supports horizontal expansion or 2×2 expansion. In the case where vertical multi-screen expansion is required, the rotation simulation can only be output through the computer. This method not only has great limitations but also has a lot of performance degradation. Achieve real vertical high-resolution multi-screen high-performance expansion

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