When everyone buys a monitor, they basically only look at the brand, size, and resolution. Friends who play games may pay more attention to 144Hz, 1ms, etc., but there are actually many ways to monitor monitors. If you want to buy your favorite monitor, it's not just about It's as simple as looking at size and resolution.
Color depth (bit)
We often see that some monitors oriented to the professional field of color are marked with 8bit/10bit panels. What does bit mean and how should we understand it?
In fact, bit represents the basic unit in computer binary, and binary information is composed of 0 and 1, which is the same when applied to the display.
Suppose we now build a monitor with a 1bit panel.
The 1bit panel means that the pixel of the display can only recognize 1 bit of information, then the information that this pixel can display is "1" or "0", and each pixel of this panel can only display 2＾1=2 colors level, and each pixel is composed of 3 colors of RGB, then this pixel can finally display (2＾1)＾3=8 colors.
When we upgrade our technology and make a 2-bit panel, it means that the pixels of the display can only recognize 2-bit information, so the information that this pixel can display is "00", "01", "10" and "11" four species, then this pixel can display (2＾2)＾3=64 colors.
By analogy, if the display is an 8bit panel, it will be able to display 2＾8=256 color levels, so 8bit will eventually be able to display 256256256=16777216 colors. 10bit can reach 1.07 billion colors.
Gamma
Friends who often watch our monitor evaluations may often see test charts of gamma values, so what do we mean by gamma values? Why did we choose gamma ( ) = 2.2 as our criterion?
The gamma value affects the hue of the intermediate values of the graphic or the grayscale of the intermediate levels. By adjusting the gamma value, you can change the brightness value of the grayscale of the midtones of the image to increase the intermediate level of the image, without having too much influence on the level of the dark and bright parts. This actually has a deep relationship with the color depth we will talk about next.
In this way, the gamma value is the relationship between color and brightness. Appropriate gamma value can have better picture details and better restore the real picture. The general feeling is whether the picture is overexposed. Whether the brightness is too high, or too low, the color of the picture is indistinguishable, and there is no dark detail.
And how does the gamma value {{0}}.2 come from? It is adjusted and finally determined by visual inspection in practice. Yes, there is no scientific calculation or anything, but it is obtained in practice. In 1996, Microsoft and HP tested people's viewing experience under specific lighting conditions. Medium 128 gray (0.5 gray) is an abstract value representing the medium gray in the mind. It is displayed with a brightness of 21.8 percent of white pixels, and the gradual transition from black to white will look more uniform. The final corresponding Gamma is 2.2. Then they set this standard, and the hardware of later generations will rely on it, including when taking pictures, the encoding Gamma also takes 1/2.2=0.454. This can ensure that the total Gamma of the entire encoding and decoding system is 1, high fidelity, and the color values in nature can be reproduced relatively well on the screen.
Summarize
When choosing a monitor, you can first look at our evaluation article. As long as the hard data of the monitor is no problem, this monitor will not have much problem. In fact, the current choice of monitors is very transparent. As long as we can choose rationally according to our own needs, we can buy a monitor that we are satisfied with. Because of the iterative development of technology, the monitor can currently meet the general consumption needs of about 1,000 yuan. . I hope this article can help you understand more about monitors, so as to help you choose your own monitor more reasonably.
