1. Click the left mouse button in the gap of the desktop and press ctrl+X to adjust the brightness;
2.windows7 system: Start-Control Panel, click System and Security, click Power Options, and drag the scroll bar to adjust the screen brightness;
WindowsXP system: open my computer-find the control panel-select hardware and sound-in the power options, you can see the adjustment of screen brightness.
Generally speaking, the brightness can be adjusted by buttons on the display screen.
It can be seen that you are a person who loves your eyes. I suggest that you can also download a Tencent computer housekeeper. Open Tencent Computer Manager-Toolbox-Health Assistant-Open eye protection color matching, so that your eyes can also be protected.