為何螢幕上的一切看起來極為模糊或充滿點陣感？
The display resolution that is configured may not be the correct one for your screen. To solve this:
開啟「概覽」並輸入「顯示器」。
點一下「顯示器」以開啟該面板。
Try some of the Resolution options and select the one that makes the screen look better.
When multiple displays are connected
If you have two displays connected to the computer (for example, a normal monitor and a projector), the displays might have different optimal, or native, resolutions.
Using Mirror mode, you can display the same thing on two screens. Both screens use the same resolution, which may not match the native resolution of either screen, so the sharpness of the image may suffer on both screens.
Using Join Displays mode, the resolution of each screen can be set independently, so they can both be set to their native resolution.