Studies have shown that looking at bright and colorful phone screens before bed makes it harder to fall asleep. Some people recommend not touching your phone for an hour before bedtime or using an E-ink device like the Kindle to read. But what if you are spoiled? What if you have to read the latest tech news in the world before going to bed or you just can’t sleep? Well, we’ll try to find a middle ground.
When reducing the brightness to zero is still not enough, take solace with screen filter apps. While these apps won’t turn your phone into an E-ink display, reading at night is much easier for your eyes and brain.
Use a screen filter app
Some of the apps listed here do more than just add a gray filter on the screen. You can precisely adjust the color temperature and even add color tones.
When you first try these, it may seem strange. But stick with it. Just as it takes your eyes a few seconds to get used to the bright light of a screen in complete darkness, so does this. Only here will you lessen the negative effects of bright lightning.
1. Screen Filters and Active Screen Filters
These two apps are your basic starter apps. They apply a filter on the screen, which effectively reduces the brightness below what your phone allows.
Active Screen Filter is a bit more advanced and will use the ambient light sensor in your phone to sense the lighting conditions in the room, changing the filter accordingly. Screen Filter on the other hand is really basic but it has been with us for a long time and has great device support.
2. CF.lumen for root users
Salmon is my favorite tint color. It gives you a gentle pink tint that is easier on the eyes than bright white and not as bold as a blood red. It also turns the image into grayscale, which is a plus.
If you are rooted, you should install CF.lumen. After you specify your location, it will change the filter based on sunrise and sunset times. You can also specify a bedtime for custom filters.
CF.lumen gives you full control over the screen filter. You can play with the classic thermometer, invert the colors, specify RGB colors, customize the intensity, or apply color filters like red or blue.
CF.lumen is the equivalent of Subway bread workers. Except that it won’t bother you to take a whole 5 minutes to customize your order just the way you like it.
3. Twilight
The philosophy behind Twilight is that it’s not just a bright screen at night that gets you. It’s blue that deals more damage. So Twilight is here to accentuate it by adding a subtle shade of red.
The home screen gives you controls for the display’s color temperature, intensity, and dimming. If you’re not a fan of red tones, easily adjust the color temperature and increase intensity and opacity.
This app also has a default and reading books in bed Reserve. Just like CF.lumen, the app monitors your location and sets filters automatically.
Who are these apps for?
- If you’re just starting out and want to see what it feels like to dim the screen beyond your phone’s brightness level, download Screen Filter or Screen Filter Activity
- If you’re not rooted but still want to play with color temperature, red tint and want to configure the screen to automatically dim based on sunset time, download Twilight
- If you’re rooted and want more control over everything Twilight does, along with more features, download CF.lumen
Categories: How to
Source: thpttranhungdao.edu.vn/en/
