使用计算机时避免或减少眼睛疲劳^{(avoid or reduce eye strain)}和头痛的最佳方法之一是具有正确的屏幕亮度。

对于许多Windows 10用户来说，使用键盘上的亮度调节键是手动调节 PC 亮度级别的更快捷方式。 

如果由于某种原因，按键无法正常工作，您可以使用其他方法来调整 Windows 10 PC 上的亮度。

如何在 Windows 10 上调整亮度^{(How to Adjust Brightness on Windows 10)}

您可以根据周围光线、电池寿命^{(battery life)}或使用电源计划手动或自动调整Windows 10的亮度级别。

如何手动调整亮度^{(How to Manually Adjust Brightness)}

您可以通过计算机的显示设置^{(display settings)}、键盘或使用Windows 移动中心^{(Windows Mobility Center)}手动调整亮度。

1. 要使用显示设置调整亮度，请选择Start > Settings > System。

1. 接下来，选择显示^(Display)并转到亮度^(Brightness) 和颜色^{(and color)}部分。

1. 使用更改亮度^{(Change brightness)}滑块，根据自己的喜好调整亮度。如果您没有看到滑块，您可能需要更新显示驱动程序。要更新过时的驱动程序，请右键单击Start > Device Manager。

1. 在设备管理器^{(Device Manager)}窗口中，选择并展开显示适配器^{(Display adapters)}类别。

1. 右键单击您的显卡，选择更新驱动程序^{(Update driver)}，然后按照说明完成该过程。

1. 如果您使用第二台显示器，请使用显示器上的按钮更改亮度。

您的键盘还具有用于调节亮度的专用键。这些键位于功能键^{(function keys)}旁边或顶行，具体取决于计算机或键盘的品牌或品牌。

在本指南中，我们使用了一台联想^(Lenovo)笔记本电脑，其亮度调节键位于键盘的顶行，紧挨着Print Screen键。

Windows 移动中心是在^{(Windows Mobility Center)}Windows 10上手动调整亮度的另一种方法。

1. 要访问Windows 移动中心^{(Windows Mobility Center)}，请右键单击开始^(Start)>移动中心^{(Mobility Center)}。

1. 在“移动中心^{(Mobility Center)}”窗口中，使用“显示亮度^{(Display Brightness)}”滑块将亮度调整到您的眼睛舒适的水平。

如何自动调整亮度^{(How to Automatically Adjust Brightness)}

您可以通过启用省电功能自动调整Windows 10上的亮度。

1. 要启用省电模式，请选择Start > Settings > System。

1. 选择电池^(Battery)，然后转到省电模式设置^{(Battery Saver Settings)}。

1. 接下来，选中如果我的电池电量低于^{(Turn battery saver on automatically if my battery falls below)}复选框，则自动打开省电模式，然后使用滑块调整电池电量百分比。

1. 选中节电模式时降低屏幕亮度^{(Lower screen brightness while in battery saver)}复选框。

如何使用自适应亮度调整亮度^{(How to Use Adaptive Brightness to Adjust Brightness)}

自适应亮度是 Windows 10 的一项功能，可自动调整显示器以匹配周围环境的照明条件。该功能通过利用环境光传感器来实现这一点，因此有助于延长电池寿命。

1. 要启用自适应亮度，请选择Start > Settings > System，然后转到显示^(Display)。

1. 如果您的设备有亮度传感器，则可以使用“当照明变化时自动更改亮度^{(Change brightness automatically when lighting changes)}”设置，在这种情况下将其切换为“开”^(On)。

如何使用快捷方式在 Windows 10 上调整亮度^{(How to Adjust Brightness on Windows 10 Using Shortcuts)}

您可以使用一些调整快捷方式来调整^(shortcuts)Windows 10上的亮度。这些快捷方式之一涉及打开任务栏中的操作中心^{(opening the Action Center)}并将亮度滑块调整到您喜欢的级别。

1. 为此，请选择任务栏上的通知^{(Notification )}图标，然后将亮度滑块拖动到所需的级别。

1. 如果图标不可用，请选择Start > Settings > System > Notifications & Actions。

1. 选择编辑您的快速操作^{(Edit your quick actions)}。

1. 接下来，选择Add > Brightness  ，然后选择完成^(Done)。

使用深色主题 ^{(Use Dark Theme )}

如果您发现由于屏幕亮度而在电脑前花费数小时感到不舒服，您可以启用 Windows 10 深色主题^{(enable the Windows 10 Dark Theme)}或使用夜灯模式。

Windows 10 深色主题类似于深色模式^{(dark mode)}，它有助于减少因长时间使用电脑而造成的眼睛疲劳。您可以使用深色主题通过自定义计算机的配色方案来显示较深的色调，从而使您的眼睛更轻松。

深色主题将自动应用于Mail、Microsoft Store、Calculator和设置菜单等应用程序，但您可能无法在Windows 10的所有方面都使用它。对于非 Microsoft 应用，您必须在这些应用中启用暗模式。

查看我们的指南，了解如何在 YouTube^{(enable dark mode on YouTube)}、Google 应用程序^{( Google apps)}或ma​​cOS 暗模式上启用暗模式^{( macOS dark mode)}。

使用 Windows 10 夜灯模式^{(Use Windows 10 Night Light Mode)}

Night Light是一种 Windows 工具，可将蓝光滤镜应用于显示器。该工具不会改变显示器的亮度，但会提供浅色主题显示，这也可以减轻眼睛疲劳。

1. 要在Windows 10上激活夜灯模式^{(Night Light Mode)}，请选择Start > Settings > Display。

1. 在亮度和颜色^{(Brightness and color)}部分，选择夜灯设置^{(Night light settings)}。

注意^(Note)：使用 Basic Display或DisplayLink驱动程序的设备缺少夜灯^{(Night Light)}模式。此外，该功能可能不适用于在计算机上连接了两个或更多显示器的所有显示器。

1. 选择立即打开以^{(Turn on now)}立即启用夜灯。

1. 您还可以将Schedule Night Light切换为On。这使您可以安排夜灯^{(Night Light)}在一天中的特定时间自动显示。

当您安排夜灯时，您将获得两个选项：^(Light)日落到日出，它会激活夜灯以从日落到日出自动淡入和淡出。此设置取决于您的时区。

或者，选择设置时间^{(Set hours )}以将自定义夜灯^{(Night Light)}间隔设置为您喜欢的时间。您还可以使用夜间色温^{(Color temperature at night)}滑块来指定灯光的显示范围。

控制您的亮度设置^{(Control Your Brightness Settings)}

我们希望您已了解如何在Windows 10上调整亮度，以优化您的显示器，以确保眼睛健康和舒适。 

您是否有其他方法可以在Windows 10^{(Windows 10)}上调整亮度？在下面的评论中与我们分享。

How to Adjust Brightness on Windows 10

One of the best ways to avoid or reduce eye strain and headaches while using your computer is to have the correct screen brightness.

For many Windows 10 users, using the brightness adjustment keys on their keyboards is a quicker way of manually adjusting the brightness level on their PCs. 

If, for some reason, the keys fail to work as they should, there are other methods you can use to adjust brightness on your Windows 10 PC.

How to Adjust Brightness on Windows 10

You can adjust the levels of brightness on Windows 10 manually or automatically based on surrounding light, battery life, or using a power plan.

How to Manually Adjust Brightness

You can adjust brightness manually from the computer’s display settings, from your keyboard, or using the Windows Mobility Center.

1. To adjust brightness using display settings, select Start > Settings > System.

1. Next, select Display and go to the Brightness and color section.

1. Using the Change brightness slider, adjust the brightness to your liking. If you don’t see the slider, you may need to update the display driver. To update an outdated driver, right-click Start > Device Manager.

1. In the Device Manager window, select and expand the Display adapters category.

1. Right-click your graphics card, select Update driver, and then follow the instructions to complete the process.

1. If you’re using a second monitor, change the brightness using the buttons on the monitor.

Your keyboard also has dedicated keys for adjusting brightness. These keys are located next to the function keys or on the top row depending on the make or brand of your computer or keyboard.

For this guide, we used a Lenovo laptop whose brightness adjustment keys are placed on the top row of the keyboard, next to the Print Screen key.

The Windows Mobility Center is an alternative way to manually adjust brightness on Windows 10.

1. To access the Windows Mobility Center, right-click Start > Mobility Center.

1. From the Mobility Center window, use the Display Brightness slider to adjust the brightness to the level that’s comfortable for your eyes.

How to Automatically Adjust Brightness

You can adjust brightness on Windows 10 automatically by enabling the battery saver feature.

1. To enable the battery saver feature, select Start > Settings > System.

1. Select Battery and then go to Battery Saver Settings.

1. Next, check the Turn battery saver on automatically if my battery falls below checkbox, and then adjust the percentage battery level using the slider.

1. Check the Lower screen brightness while in battery saver checkbox as well.

How to Use Adaptive Brightness to Adjust Brightness

Adaptive brightness is a Windows 10 feature that automatically adjusts your display to match the lighting conditions of your surroundings. The feature does this by tapping into the ambient light sensors, and is therefore useful in conserving battery life.

1. To enable adaptive brightness, select Start > Settings > System and go to Display.

1. If your device has a brightness sensor, the Change brightness automatically when lighting changes setting will be available, in which case switch it to On.

How to Adjust Brightness on Windows 10 Using Shortcuts

There are adjustment shortcuts you can use to adjust brightness on Windows 10.  One of these shortcuts involve opening the Action Center in the taskbar and adjusting the brightness slider to your preferred level.

1. To do this, select the Notification icon on the taskbar and then drag the brightness slider to the level you want.

1. If the icon isn’t available, select Start > Settings > System > Notifications & Actions.

1. Select Edit your quick actions.

1. Next, select Add > Brightness  and then select Done.

Use Dark Theme 

If you find it uncomfortable spending hours in front of your computer because of screen brightness, you can enable the Windows 10 Dark Theme or use Night Light Mode.

Windows 10 Dark Theme is like dark mode and it helps reduce eye strain due to prolonged computer use. You can use the dark theme to display darker tones by customizing your computer’s color scheme, thus making it easier on your eyes.

The dark theme will be applied automatically to apps like Mail, Microsoft Store, Calculator, and settings menus, but you may not get it with all aspects of Windows 10. For non-Microsoft apps, you’ll have to enable dark mode in those apps.

Check out our guides on how to enable dark mode on YouTube, Google apps, or macOS dark mode.

Use Windows 10 Night Light Mode

Night Light is a Windows tool that applies a blue light filter to the display. The tool doesn’t change the brightness of your display, but provides a light-theme display, which also reduces eye strain.

1. To activate Night Light Mode on Windows 10, select Start > Settings > Display.

1. In the Brightness and color section, select Night light settings.

Note: Devices that use Basic Display or DisplayLink drivers lack Night Light mode. Plus, the feature may not apply to all monitors where you have two or more monitors attached to your computer.

1. Select Turn on now to enable Night Light immediately.

1. You can also toggle Schedule Night Light to On. This allows you to schedule Night Light to be displayed automatically during a certain time of the day.

You’ll get two options when you schedule Night Light: Sunset to sunrise, which activates night light to automatically fade in and out from sunset to sunrise. This setting depends on your time zone.

Alternatively, select Set hours to set your custom Night Light intervals at your preferred hours. You can also use the Color temperature at night slider to specify the display range of your light.

Control Your Brightness Settings

We hope you’ve learned how to adjust brightness on Windows 10 to optimize your display for eye health and comfort. 

Do you have additional ways to adjust brightness on Windows 10? Share with us in a comment below.

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