A TFT, a thin film field effect transistor, is one of active matrix liquid crystal displays. It can "actively" control individual pixels on the screen, which can greatly improve the reaction time. Generally, the reaction time of TFT is relatively fast, about 80 milliseconds, and the viewing angle is large, generally reaching about 130 degrees, mainly used in high-end products. Thereby, high-speed, high-brightness, high-contrast display screen information can be achieved.
TFT is an active matrix liquid crystal display, which is driven by an "active matrix" method. The method is a transistor electrode made by thin film technology. The scanning method is used to "actively pull" to control the opening of any one display point. When the light source is irradiated, it is firstly permeable through the lower polarizing plate, and the light is transmitted by the liquid crystal molecules, and the display is achieved by shading and light transmission.
Many of the new generation of color screen phones support 65,536 color display, and some even support 160,000 color display. At this time, the high contrast and rich color advantages of TFT are very important. The main components of the TFT type liquid crystal display include a fluorescent tube, a light guide plate, a polarizing plate, a filter plate, a glass substrate, an alignment film, a liquid crystal material, a thin mode transistor, and the like.
With the gradual popularization of mobile phone color screens, the material of mobile phone screens has become more and more important. The color screen of mobile phones varies with LCD quality and R&D technology. There are several types of TFT, TFD, UFB, STN and OLED. In general, the more colors that can be displayed, the more complex images can be displayed, and the layers of the screen are more abundant.
In addition to the above-mentioned major types of LCDs, other LCDs can be seen on some mobile phones, such as the Japanese SHARP GF screen and the CG (Continuous Crystalline Silicon) LCD. The two LCDs are completely different types, GF is an improvement of STN, which can improve the brightness of LCD, while CG is a high-precision high-quality LCD that can achieve QVGA (240 & TImes; 320) pixel resolution.
Ips screenIPS screen (In-Plane Switching) technology is a liquid crystal panel technology introduced by Hitachi in 2001, commonly known as "Super TFT". The IPS screen is a TFT-based technology, and its essence is still a TFT screen. IPS solves the viewing angle problem by making the molecules look the same length in all directions. And VA liquid crystal is the two mainstream of today's liquid crystal technology.
The reason why the IPS hard screen has clear and ultra-stable dynamic display effect depends on its innovative horizontal conversion molecular arrangement, which changes the vertical molecular arrangement of the VA soft screen, thus having a more stable and stable liquid crystal structure. Not in the surface sense, the hard screen is to add a layer of hard protective film on the LCD panel, in order to avoid the LCD screen being damaged by external hard objects.
IPS and TFT screen differenceWhat is the difference between IPS and TFT? Which is better? On this issue, it is actually very simple, please keep this in mind, TFT is the screen material, IPS is the screen technology.
1, the essence of IPS is also TFT
The so-called IPS screen, its essence is also TFT material, IPS is just a screen technology under the TFT. Even if you have to call IPS a screen, it's just a kind of TFT screen. The reason why IPS and TFT are called by manufacturers is to make a marketing gimmick.
Buy a mobile phone must see: What is the difference between IPS and TFT screen?
When many mobile phone manufacturers launch a new machine, they will try their best to find marketing gimmicks for mobile phones. What's the highlight of this phone, what can I do if I can't find the highlight? Then come up with some "nouns" that consumers don't know to attract eyeballs, such as "Aerospace Aluminum Magnesium", "304 Austenite" and "IPS Screen".
IPS and TFT are the victims of merchant marketing. These two screens are actually a kind of screen. The TFT screen is equivalent to the main body of the mobile phone screen, and IPS is only the name of a display technology of TFT. Some unscrupulous manufacturers have caused many consumers to think that this is two types of screens.
2, the advantages of IPS screen technology
The full name of the TFT is (Thin Film Transistor), which is a thin film transistor. The working mode of the TFT is that each liquid crystal pixel on the liquid crystal display is driven by a thin film transistor integrated therein. In short, the TFT is configured with a semiconductor switching device for each pixel, which can be directly pulsed by a pulse. Each pixel is controlled to form an image.
What is the difference between IPS and TFT screens?The full name of IPS is (In-Plane Switching). The superiority of IPS technology is to change the arrangement of liquid crystal molecular particles. The horizontal conversion technology is used to accelerate the deflection speed of liquid crystal molecules, and to ensure the sharpness of the picture when shaking. The superior expressive power eliminates the blurring and water-grain diffusion of the traditional LCD screen when it receives external pressure and shaking.
Due to the stability of small stocks, IPS technology has been widely used in the screen panels of mobile phones or tablets. In addition, because the liquid crystal molecules rotate in the plane, the "IPS screen" is born with a fairly good viewing angle performance, and the four axial directions of the upper and lower sides can achieve a viewing angle of nearly 180 degrees, which is also the propaganda of the manufacturers. The IPS has a 178° view angle.
The application of IPS technology has greatly improved the display effect of traditional TFT screens. Even if the IPS screen technology is very powerful, it is not enough, but it is still a technology based on TFT, the essence is still the TFT screen.
Which is better for tft screen and ips screen?
There are also a variety of mobile phone screens, such as TFT, IPS (technology), SLCD, Super AMOLED, etc. Among them, TFT and IPS displays are the most used by manufacturers. In particular, the IPS display is commonly referred to as Super TFT and is a TFT using IPS technology. So which screen is better in TFT and IPS? Here is a brief introduction for everyone, and teach you a basic method of resolution.
Method / step
IPS screen and TFT screen intuitive display effect: IPS screen, four viewing angles are good, the viewing angle is generally around 178 °; TFT screen, the legendary three missing one screen, is the three directions effect is good, one direction The effect is not strong, and the picture can be seen later. It can be said that the IPS screen is better than the TFT. The IPS screen should also be the standard screen for mobile phones and tablets. This is the reason why Apple chooses IPS. However, IPS screens are more expensive than TFTs in purchasing prices, so some manufacturers also I have to shrink the hardware to reduce the cost and choose the TFT screen, but if your budget is sufficient, then I suggest you give priority to the IPS screen.
The comparison between the IPS screen and the TFT screen is as follows:
We showed the performance of IPS screen and TFT screen from the top, bottom, left and right directions. I believe everyone also found that the lower or right angle of the ordinary TFT screen will change color when viewed obliquely or simply The black lacquer can't be seen clearly, so it is called three missing one screen. Everyone notices that if it is an IPS screen, then there must be a mark on the advertisement, and most of the marks are not TFT screens. The effect of the IPS screen is good. Whether it is online, reading or video, it is better than the ordinary screen. Of course, for the sake of price, sometimes there is no way to choose the TFT screen.
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