What is the difference between IPS and LTPS?

<> demo model: iPhone 12 && Huawei P40 &&& Xiaomi 11 System version:

1. Luminescence principle: Each independent pixel of LTPS can be actively controlled, and LCD is controlled by electric field to control the adjustment of liquid crystal molecules to the backlight to achieve display.

2. Composition: The LTPS screen is mainly composed of fluorescent tubes, light guide plates, polarizers, light filter plates, glass substrates, supporting films, liquid crystal materials, etc. LCD screens are mainly composed of LCD panels, backlight modules, and circuit boards.

There are four differences between TN screen and IPS screen

1. The difference between image imaging and response speed.

Imaging quality is mainly determined by grayscale.

It is decided with a color. The more gray stratum there are, the more delicate the performance; The more vivid and smooth the color, the more realistic the image. IPS screen.

It is better than the TN screen in the gray level and color transition, and it is also more accurate in the solid color display, but the pure black display is insufficient, and it needs to rely on the optical film to compensate for the black.

2. The difference between liquid crystal arrangement and energy consumption.

The electrodes of the IPS screen liquid crystal are all on the same plane, unlike the electrodes of other liquid crystal modes, which are arranged on the upper and lower sides and are three-dimensional. Regardless of the state, the liquid crystal molecules are always parallel to the screen, so the opening rate and light transmittance.

3. The difference in viewing angle.

TN screen liquid crystal molecules because there is a vertical direction, so when the light is played, the light is perpendicular to the screen, therefore, our human eyes must also be facing the screen, so as to get a better visual effect, once there is a tilt to the skew, then there will be obvious color cast. On the contrary, the IPS screen is always horizontal, so no matter which direction you look at, there is not much difference in color uplift. This is what we often call viewing angles.

The viewing angle of the TN screen is very low, while the IPS screen can go up to 170 degrees to close to the 180-degree level.

4. The difference between light leakage.

IPS is because the liquid crystal molecules have been arranged horizontally, so the light penetration ability is poor, so if you want to display the same brightness as TN, then the backlight of the IPS screen must be brighter than the backlight of the TN screen, and the brighter backlight also leads to the situation of bright light when the real black color, which also causes the problem of light leakage.

The display refresh rate of the TN screen can be very high, with vertical synchronization, there is almost no delay, and there will be no picture drag tearing, but the color presentation will not be as gorgeous as IPS. The IPS screen is good in color, but there are more light leakage problems, and the refresh rate is not as high as the TN screen, but it also depends on the model, depending on the effect of which one you like.

I recommend the Alienware 25 series gaming monitor I'm using - the AW2521H, which uses NVIDIA Reflex latency analyzer technology to achieve Alienware's fastest 360 Hz refresh rate, as well as GTG fast IPS response times as low as 1ms and 99% color coverage in SRGB. The picture quality is very high and very smooth. For the screen, as long as the graphics card performance is high enough, the frame rate of the rendered picture may be higher than 60fps.

When the FPS > 60, the 60Hz screen will be limited by its own hardware support, and can only reach the picture smoothness of FPS=60 (of course, the higher the FPS, it will still appear relatively smoother). The 144Hz high refresh rate screen will support the display of more image information, thus providing a better smooth picture experience. And the alien screen has a refresh rate of up to 360hz, and the picture is smoother.

You can check out the latest events on the official website.

First, the reference is different.

1. IPS screen: a technology based on TFT, its essence silver dust is still TFT screen.

2. NT screen: also known as segment LCD screen, it is a mainstream display product in the 60s of the last century, which was first developed in Japan.

Second, the principle is different.

1. IPS screen: the arrangement of liquid crystal molecules has been optimized, and the horizontal arrangement is adopted, when encountering external pressure, the molecular structure sinks down slightly, but the overall molecule is still horizontal.

2. NT screen: It is an alternative to the LED digital tube (composed of 7 pen segments, used to display the number 0 9), such as calculators, clocks, etc., and the display content is digital, which is also simpler.

Third, the advantages are different.

1. IPS screen: It accelerates the deflection speed of liquid crystal molecules, which is reflected in the advantage of fast response speed of IPS hard screen, which makes the movement trajectory of the image more delicate and clear, and solves the problem of troublesome image drag and jitter.

2. NT screen: provide simple and fast display effect, fast response speed, high ratio of resistance to fight, and low cost.

TN screen has been widely used in low-end notebook products due to its low production cost. The IPS screen has a better viewing angle, less light leakage, and it can perform better in sports pictures.