AOC monitor

To do a rough calibration, the Windows 10 way:
Settings > System > Display > Advanced display settings > Display adaptor properties > Colour Management Tab > Colour management > Advanced Tab > Calibrate Display.

You may need to go in to the Nvidia Control Panel (AMD, Intel whatever) to check on the black level.

I assume you know the characteristics of TN display panels and their angular peculiarities.

Drivers only contain an INF file for monitor specs regarding supported resolutions etc, and a ICM colour profile. It will do nothing for such a problem.

essenbe said:

The monitor will have a menu that allows you to adjust brightness, contrast color and such. Mine s located on the bottom Right of the frame. You can also go to your Nvidia control panel > Adjust video color settings and adjust it from there.

I think that the backlight is the problem. Do you know how to adjust the backlight ?

As has been illustrated the main control is the monitor brightness which is basically the backlight brightness.

There are 3 areas to look at.
1) Monitor Controls.
2) Graphics Card controls.
3) Windows 10 controls.
Each of those will have a "brightness" control.

The basic idea is to fix 2 of those and adjust the third.

If you don't know what you are doing then as a starter position set Windows 10 to defaults, and the Graphics Card Controls the same.
Then adjust the monitor controls.

As this is a visual thing then a text explanation is difficult.

I finally upgrade my graphics card, any comments ? I also replace my retired monitor (Samsung 2233sw)

to AOG e2270sw. which I need advise. The backlight is too bright, how to reduce the backlight ?

How to use the auto function. Lastly, is this a good and reliable monitor ?

I would read the manual for the monitor I'm sure it will explain how to adjust the brightness. This tutorial should help Adjust Screen Brightness in Windows 10 | Windows 10 Tutorials