Location: Home Page > Article Article
Advantages and disadvantages of TN screen and IPS screen and their differences
Many people like IPS screens but hate TN screens. So what is difference between these two screens? Why do many people admire IPS screens and hate TN screens? Today I will explain to you why so many people love IPS screens.
Both of these screens are LCD screens. Unlike OLED screens, LCD screens do not emit light. They need a backlight to illuminate screen. Of course, difference between LCD and OLED is not mentioned here. The biggest difference between IPS and TN screens is arrangement of their liquid crystal molecules.
When TN screen is actually white, liquid crystal molecules are arranged in a spiral in horizontal direction, and when it is black, liquid crystal molecules are arranged vertically. An IPS screen is same as a TN screen when it's actually white, but when it's black it's still curved in horizontal direction but gives original spiral shape a superimposed look.
Field of View
Because TN screen's liquid crystal molecules have a vertical direction, when light comes out, light is perpendicular to screen. Therefore, our human eyes should also face screen in order to get best visual effect. , Since there is a slope, there will be a clear color cast. In contrast, IPS screen is always horizontal, so no matter which way you look at it, there is not much difference in color. This is what we often refer to as viewing angle. TN screens have very low viewing angles while IPS screens can go as high as 170 degrees and approach 180 degrees.
Many people may not know concept of grayscale very well, we may think of it as a transitional property of color. A TN screen (6 bit) can display 2.62 million colors and an IPS screen (8 bit) can display 16.77 million colors, so in process of going from black to white, we can see that IPS is in process of going from black to white , because more colors can be displayed, resulting in a more natural transition.
Since IPS has so many advantages, doesn't it have any disadvantages? No, IPS because liquid crystal molecules are always horizontal, so light penetration is poor, so if you want to display same brightness as TN, then backlight of IPS screen must be brighter than backlight of TN screen, and backlight is brighter . This also results in bright light when actual black is present, which also causes a light leakage problem.
That is, since we want to compare differences between them, we must explain them with examples. Let me show you a few examples and we can see difference between them on specific display effects.
1. As can be seen from Figure 1, four corners of TN screen are relatively dark and details are easily lost, while IPS screen is relatively uniform.
2. As you can see from Figure 2, color of TN screen is white and there are still dark corners, while color reproduction of IPS screen is more accurate.
It can be seen from these two simple examples that colors on a TN screen have problems with whitening and uneven transition, while color reproduction ability on an IPS screen is better. Therefore, in terms of daily use, it is recommended to use IPS screens as main screen. Whether it is office, entertainment or general gaming, IPS screens should be first choice.