如果您想在使用外接显示器时关闭笔记本电脑屏幕^{(turn off the laptop screen when using an external monitor)}，您可以按照本指南进行操作。无论您连接了多少台笔记本电脑，都可以关闭笔记本电脑屏幕并继续使用外接显示器。

Windows 11/10设置双显示器^{(set up a dual monitor)}系统相对容易——无论您使用的是笔记本电脑还是台式电脑。由于便携性，许多人经常选择笔记本电脑。如果您已经连接了外接显示器，但您发现笔记本电脑屏幕对您的工作不是必需的，则可以将其关闭。简单来说，您可以从双显示器更改为单显示器。^{(change from dual monitor to single.)}

^(Turn)使用外接显示器^{(External Monitor)}时关闭笔记本电脑屏幕^{(Laptop Screen)}

要在使用外接显示器时关闭笔记本电脑屏幕，请遵循本指南。

1]使用^(Use)任务栏中的项目选项

视窗 11

单击^(Click)屏幕右下角可见的小通知图标以打开快速操作^{(Quick Actions)}并执行必要的操作。外接显示器打开，而笔记本电脑的屏幕关闭。

视窗 10

^{(Action Center)}Windows 10中的操作中心，提供了一些一键式选项，可在瞬间进行各种更改。从更改笔记本电脑屏幕亮度到选择单个显示器，您可以从这里做所有事情。要开始，请按照以下步骤操作。

单击^(Click)屏幕右下角可见的小通知图标以在 Windows 10 中打开操作中心^{(open Action Center in Windows 10)}。如果找不到所有选项，请单击展开^{(Expand )}按钮。

您应该看到一个名为Project的选项。单击项目^{(Project )}图标后，仅从列表中选择第二个屏幕。^{(Second screen only)}

现在，您应该看到外接显示器已打开，而笔记本电脑的屏幕已关闭。

2]从Windows设置更改

视窗 11

Windows 设置^{(Windows Settings)}面板包含与之前相同的选项。如果您使用的是Windows 11，则需要执行以下步骤：

1. Press Win+I打开Windows 设置^{(Windows Settings)}。
2. 确保您位于“系统^(System)”选项卡中。
3. 单击^(Click)右侧的显示菜单。^(Display)
4. 展开扩展^(Extend)这些显示下拉列表。
5. 选择仅在 2 上显示选项。
6. 单击保留更改按钮。

视窗 10

Windows 设置^{(Windows Settings)}面板包含与之前相同的选项。为此，您需要先按Win+I打开Windows 设置^{(open the Windows Settings first)}。之后，转到System > Display。滚动一点后，您可以找到一个名为Multiple displays的标题。在这里，您需要展开下拉列表，然后选择Show only on 2选项。

就这样！从现在开始，您只能找到显示数据的外部监视器。如果要还原更改，则需要像以前一样打开相同的面板并选择选项。

希望能帮助到你！

How to turn off Laptop Screen when using External Monitor

If you want to turn off the laptop screen when using an external monitor, you can follow this guide. It is possible to switch off the laptop screen and keep using the external monitor – no matter how many you have connected to the laptop.

It is relatively easy to set up a dual monitor system with Windows 11/10 – no matter whether you are using a laptop or a desktop computer. Many people often opt for a laptop because of portability. If you have already connected an external monitor, but you found the laptop screen not mandatory for your work, it is possible to turn it off. In simple terms, you can change from dual monitor to single.

Turn off Laptop Screen when using External Monitor

To turn off the laptop screen when using an external monitor, follow this guide.

1] Use the Project option from the Taskbar

Windows 11

Click on the tiny notification icon visible on the bottom-right corner of your screen to open Quick Actions and do the needful. The external monitor is turned on whereas the laptop’s screen is switched off.

Windows 10

Action Center in Windows 10, offers some one-click options to make various changes within moments. From changing the laptop screen brightness to opt for a single monitor, you can do everything from here. To get started, do follow these steps.

Click on the tiny notification icon visible on the bottom-right corner of your screen to open Action Center in Windows 10. If you cannot find all the options, click on the Expand button.

You should see an option called Project. After clicking the Project icon, select the Second screen only from the list.

Now, you should see that the external monitor is turned on whereas the laptop’s screen is switched off.

2] Change from Windows Settings

Windows 11

The Windows Settings panel includes the same option as earlier. If you are using Windows 11, you need to follow these steps:

1. Press Win+I to open Windows Settings.
2. Ensure that you are in the System tab.
3. Click on the Display menu on the right side.
4. Expand the Extend these displays drop-down list.
5. Choose the Show only on 2 option.
6. Click the Keep changes button.

Windows 10

The Windows Settings panel includes the same option as earlier. For that, you need to press Win+I to open the Windows Settings first. After that, go to System > Display. After scrolling a bit, you can find a heading called Multiple displays. Here, you need to expand the drop-down list, and select Show only on 2 option.

That’s all! From now onward, you can find only the external monitor showing your data. If you want to revert the change, you need to open the same panel and select the option as before.

Hope it helps!

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