Press and hold (or right-click) the display adapter name, then select Update driver and follow the instructions. In Device Manager, select Display adapters, then select the display adapter. In the search box on the taskbar, type Device Manager, and then select Device Manager from the list of results. If you don't have a desktop PC and the slider doesn't appear or work, try updating the display driver. To find the brightness slider in earlier versions of Windows 10, select Settings > System > Display, and then move the Change brightness slider to adjust the brightness. The Brightness slider appears in action center in Windows 10, version 1903. To change the brightness on an external monitor, use the buttons on it. You might not see the Change brightness for the built-in display slider on desktop PCs that have an external monitor. Even if you use it, you can still move the Change brightness for the built-in display slider to fine-tune the brightness level. This automatic setting helps make sure your screen is readable wherever you go. Under Brightness and color, look for the Change brightness automatically when lighting changes check box, and then select it to use this feature. When viewing HDR photos, videos, and movies, the new. To find out if your PC supports this, select Settings > System > Display. The new displays have a peak brightness of 2,000 nits when used outdoors in sunlight, two times the peak brightness of previous models. Some PCs can let Windows automatically adjust screen brightness based on the current lighting conditions. (If the slider isn't there, see the Notes section below.) Select action center on the right side of the taskbar, and then move the Brightness slider to adjust the brightness. For more info, see Adaptive brightness and contrast in Windows. The new displays have a peak brightness of 2,000 nits when used outdoors in sunlight, two times the peak brightness of previous models. Some Windows PCs can automatically adjust the screen brightness and contrast based on content that’s displayed on your built-in screen. You might also see another check box displayed: Help improve battery by optimizing the content shown and brightness. Even if you use it, you can still move the Brightness slider to fine-tune the brightness level for a built-in display. Select Brightness, look for the Change brightness automatically when lighting changes check box, and then select it to use this feature. To find out if your PC supports this, select Settings > System > Display. (If the slider isn't there, see the Notes section below.) I can barely look at another computer after dark anymore.Select the Network icon on the right side of the taskbar, and then move the Brightness slider to adjust the brightness. It's a piece of software that, outside of daylight hours, adjusts your screen's color. If it seems dull and gray, it may be too dark.Īs a side note, I would recommend f.lux.

If it looks like a light source, it's too bright. As a test, look at the white background of this Web page. The spectral peak of warm-colored light is closer to infrared, and most natural warm-colored light sources emit significant infrared radiation. Where there are suggestions, it's usually to achieve some level of parity, such as from here:Īdjust the brightness of the display so it's approximately the same as the brightness of your surrounding workstation. Most sources seem to discuss the effect of too much brightness, although there's a good chance that's a function of the fact that we often need interior lighting. Solution: Use indirect, ambient lighting and an adjustable light source at the desk, where extra illumination is required. People may not even be aware that their eyes are under duress, but over time they may develop symptoms of eyestrain.

If the light in the work area is too bright or too dim, the human eye has to work extra hard to compensate for these harsh environmental factors. Here's a link from the Oklahoma State University's Environmental Health and Safety suggestions on office ergonomics.

Does brighter screen create more heat