Which is better to choose a plasma TV or LCD? There is no single correct answer to this question. It all depends on the needs of the buyer and on the conditions in which he will watch TV. Here, in order to choose the right option, the buyer must know the pros and cons of these technologies.
How LCD TVs work
The principle of operation of the LCD display is very simple, the liquid crystal molecules change their position in space under the influence of electric current. If you place a layer of liquid crystals after the display backlight, you can get a kind of electric light switch.
Depending on the plane of polarization, the light will either pass through the LCD matrix or be delayed, which we will see on the screen as light or dark pixels. These pixels are very many, with a resolution of 4K pixels on the screen of 8 million.
Having passed a layer of liquid crystals, the so-called blinds, the light enters the light filter. For each pixel there are three subpixels: green, blue and red. These colors are the basis of all color television, because by combining them we can get almost any shade. As a result, we get the desired image on the screen, that’s how the lcd TV works.
How do plasma TVs work?
In turn, the principle of operation of a plasma TV is as follows. Each pixel in the plasma panel consists of three microlamps with ionized gas. An electrode is supplied to the gas cones, through which voltage is supplied. During an electric discharge in a gas (plasma), ultraviolet radiation occurs, which makes the phosphor that covers each sub-pixel glow. The brightness of each cell depends on the level of applied voltage. Thus, from three primary colors, you can get almost any shade.
Video: Which TV is Better than LCD or Plasma
Advantages and disadvantages
Plasma TVs cannot be less than 32 inches, this is a technological limitation. But mostly plasma TVs do with a diagonal of 42 inches or more. A LCD screens can be from very small (for example, watches) to 100 inch screens, in reality LCD TVs are produced up to 80 inches.
Plasma with a large diagonal is perfect for a room with a large area and equipped for a home theater. And for a smaller room, the LCD is better, because in a small room such disadvantages of plasma TVs as increased heat generation and noise from cooling fans will be much more noticeable.
The problem of burnout of pixels near a plasma can arise if a static picture is presented on the screen, for example, when connected to a computer or if a photograph is set instead of a splash screen. During ordinary viewing, the problem of faded pixels may not arise at all, and in new models, the problem of burnout has practically been eliminated. Both plasma and LCD TVs have a sufficient margin of failure time, so looking at this characteristic when comparing these technologies is not necessary.
This information is valid for 2014. Since then, plasma has left the market and its parameters have remained the same, but models with LED backlighting have become leaders in the TV market. Their technical parameters have reached a high level and you can find models with excellent image quality. They compete with OLED TVs, but they are relatively few and they come at a great price.