8 minutes ago, Wissam6990 said:
what do you mean a 6 bit panel ? what monitors do you recommend for perfect colors and image quality ?
Well most monitors are 8 bit, with the exception of a) very very cheap crappy ones, b) high refresh rate ones like yours that sacrifice image quality for speed without making the price too high, and c) professional monitors that are 10 bit.
Essentially it's the number of distinct levels each subpixel can take on. 28 = 256, which is the range of values that every normal modern consumer devices works with. That's per channel, so with R G and B you get 2563, which is the 16.7M colours you see advertised on most displays. With a 6 bit panel you just get 26 = 64 per channel, and then the combination of how these turn into the full displayable range is a bit more complicated than what I want to get into but they use tricks to try to simulate as much of the 2563 (16.7M) colours that you would expect as possible. This leaves visible artifacts however and that might be what you are seeing. If this is the case there's nothing we can do to "fix" that, it's just how the monitor looks.