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Similar to all electronic technology, the screen on that point thing a lot of people do not understand. For example, you or your family want to buy a flat-panel TV or monitor, you need to face a lot of parameters: resolution, panel type backlight technology, etc., it sounds very complicated. However, in order to buy the most suitable products, or need to understand these differences in key parameters, so you may wish to simply look at the following.
We often say that TN screen, in fact, Twisted Nematic (twisted nematic) panel abbreviations. In fact, you do not have to remember the complex academic name, just remember: TN screen is the lowest-cost LCD panel, display the worst, the narrowest perspective on it. Basically, most of the low-end monitors have adopted this panel.
VA panel as long as the research and development of MVA into Fujitsu and Samsung's PVA-based, relatively speaking, is a better effect than TN, but still less than the IPS compromise solution. VA panel has a wide viewing angle and better, but still belongs (with a finger touch panel will produce ripple) soft screen, response time, viewing angle, uniformity, and not IPS. Such panels are usually provided on a number of high-end monitors.
IPS and PLS
IPS (left) and TN (right) Differences between panel
Undoubtedly, IPS is the best of LCD panels, superior color performance, high viewing angle, but also has a lower power consumption. IPS is often called "hard screen" because of its outer surface with glass, high-end televisions, mobile phones, flat panel display are generally equipped with IPS panels. As PLS, the Samsung standard IPS, lower costs, but basically the same, and IPS.
LED backlight technology:
LED TV is an alternative to CCFL cold cathode fluorescent tubes with LEDs to achieve better illumination imaging effects. However, LED backlight development has also evolving, so is mainly used in three types of display are not the same.
Direct type LED backlight:
Mainly covered LED lamps in the backlight panel, to achieve uniform illumination. Characterized by fine quality, the backlight can be set to the region, that the so-called "local control light" technology, which for different colors to achieve separately. However, this will affect the thickness of the TV backlight technology, so some thin as a selling point to turn to another TV backlight technology.
Side LED backlight:
Very easy to understand, side-LED backlight is set up around the LCD panel LED bulbs, lighting of LCD screens after exposure to the light guide plate. Because fewer bulbs, so TV manufacturers will run TV fuselage designed to be more lightweight, ultra-thin television mainstream market are using this technology. However, due to some birth defects, can not achieve local control of light, color performance aspect less direct style so well.
Has been a very popular "quantum dot TV", is actually a new backlight technology. Its characteristic is the use of nanocrystalline materials instead of LED light source to achieve a more pure, more realistic color reproduction backlit color LCD TV color effect raised to a level comparable to OLED. Therefore, the use of quantum dots LCD TV, indicating that the market is currently in the best, most expensive.