Framelock
它是AMD FirePro S400的主要功能之一. 用于仿真, 可视化和视频墙(simulation, visualization and power walls. ). 同步多输出的帧画面, 3D
能够借助硬件使每个显示屏上的帧实现同步，同时还能在多个显示屏上刷新画面,应用在多台显示器上显示. AMD 官方解释为:
The AMD FirePro™ S400 delivers Framelocking by combining Output lock (synchronized display output) and 3D swap lock (simultaneous 3D buffer swapping), ensuring the GPUs in connected systems present their outputs in lock-step.
引自: ATI FirePro S400 DataSheet
Genlock 同步锁相, 同步锁定
能够使视频的刷新和外部视频源保持一致，当提供了一个适当的信号后，图形卡就会把它的显示刷新率和这个信号锁定. Genlock一般采用的BNC 接头。这让显卡可以接收外部的参考信息，例如电视墙画面的同步化，所有画面的闪烁跳动都一致， 这可以节省工程师许多不必要的困扰。
bezel compensation 拼缝补偿, 边框补偿
显示器边框不管多窄，四周总会有一个边框，组建多屏系统的时候不可避免地会影响视野，所谓边框补偿(Bezel Compensation)就是针对这种情况而来，会将边框占据的画面忽略掉而不是远远分开，从而让两边画面更自然地连接在一起. AMD官方解释为:
Adjust display layout to remove the pixels occupied by display bezels.image
multi-display / multi-monitor technology 拼接屏技术
AMD对于其显卡拼接技术Eyefinity的描述:
AMD Eyefinity multi-display technology provides advanced multiple monitor technology delivering an incredibly immersive graphics and computing experience with innovative display capabilities, supporting massive desktop workspaces and super-high resolution graphics rendering environments.
AMD Eyefinity multi-display technology is defined as two or more display outputs operating simultaneously and independently from each other. Support is available for Duplicated (Clone) and extended multiple monitor modes, with new support for the capability to group displays into a massive single large surface spanning across multiple displays for use with your desktop workspace, video playback, with support for both windowed and full screen 3D applications.
引自 Eyefinity Whitepaper
multi-display技术在数字标牌行业的应用
Digital Signage
The digital signage market has been creeping its way into more and more retail outlets, restaurants and common areas. This market is defined by multiple screens being controlled by a single system outputting multiple instances of active content.
AMD Eyefinity multi-display technology enables this market the ability to output more screens from a single card by increasing the capacity of a single system thereby helping to simplify install, reduce costs and expand content choice and flexibility.
The power of the GPU behind these multiple screens will also enable a level of graphics and video activity that can easily be spanned across multiple screens or multiple zones which was not possible before. This can open up a new stage of dynamic eye catching content that is the key to any successful public information display environment.
AMD 关于传统硬件拼接方案与显卡拼接方案的对比描述:
The early multi-display solutions were non-ideal. Bulky CRT monitors claimed too much desk space, thinner LCD monitors were very expensive, and external multi-display hardware was inconvenient and also very expensive. These issues are much less of a concern today. LCD monitors are very affordable and current generation GPUs can drive multiple display devices independently and
imultaneously, without the need for external hardware.
