如何理解广泛的通用兼容性

最近准备买个液晶显示器，在查找资料，发现在三星2494lw引进的；广泛的兼容性；函数，该函数的功能是什么

There are a lot of new widescreen LCD display provides a universal compatible ldquo; ; function, in simple terms, through this function, the display can be in widescreen and general screen display switching fast and convenient mode, this is mainly for those who don't support compatible widescreen video game and software.Specifically to the Samsung 2494LW, its own display ratio is 16: 9, through ldquo, wide compatibility , and function, it can quickly switch between 16: 9 and 4: 3 two display modes.