Smartphones with an amoled screen are becoming more popular. But what are the advantages of such a display?
It is easy to notice that the phones with an amoled screen are more expensive than IPS-fellow. What is the highest cost? Is it possible to distinguish the display from the AMOLED technology from the screens of another type? Why such a LCD panels are rarely found outside the products of the South Korean company Samsung? Answers to all these questions - in this material.
Under the Abbreviation AMOLED hides the decryption "Active Matrix Organic Light-Emitting Diode " This means that this matrix is built on the basis of organic LEDs, while it is active. Each pixel here glows on their own, as a result of which a separate backlit layer is not required - it reduces the thickness of the panel, and also reduces power consumption.
Almost any AMOLED-screen has the following structure:
- The upper layer - cathode ;
- The organic layer with LEDs is located below - with no air layer;
- An even lower matrix of thin-film transistors engaged in controlling diodes is placed (34];
- Next follows an anode layer ;
- It lies all this on with a substrate from silicone, metal or some other material.
The structure of the amoled screen
The order of the LED subpixels in AMOLED- Displays can be different. Samsung used a long time Pentile - a chess order (in the middle - blue, on the sides - two green, behind them - two red). It is this position of the subpixels that the energy consumption is more positive.
Pentile - the order of subpixels used by samsung
AMOLED or SUPER AMOLED: What is better?
in SAMSUNG smartphones Screens made using Super AMOLED technology are used. What are the main differences between such displays? Initially, the prefix "Super" meant the absence of an air layer - it was the South Korean company that managed to get rid of such in 2010. But now they can boast and ordinary amoled screens made by other companies. Consequently, Super Amoled is now the marketing "chip" of the South Korean manufacturer. That is, between Amoled and Super Amoled you can put a sign "equal".
It should be noted that it is Samsung that produces the highest number of amoled panels. South Koreans have already learned how to flexing their creations in every way (to do it without a separate layer with backlit is noticeably easier). Be sure all the smartphones with an amoled display, the edges of which are curved, are manufactured using South Korean matrices. Own plant for the production of screens from organic LEDs is going to open Apple, but it will happen not earlier than 2020.
The main advantages of amoled panels
The physical properties of matrices consisting of organic LEDs are such that the screen may have tiny thickness. In particular, this is especially important for smart hours and fitness bracelets, the physical dimensions of which should not be large.
But the most important plus of any OLED screen (including the variations of AMOLED) is Low power consumption. Each pixel of such a display glows independently. It turns out that the greatest energy consumption will be at the moment when the entire screen displays a smooth white color. And if some areas should display dark colors, they are glowing noticeably dim in connection with which the battery consumption is reduced.
The darker the picture displayed on the display - the less energy is consumed.
High contrast - another undoubted advantage of such screens. This is all the same pixel ability to glow alone. For example, under IPS-panel is hidden a substrate from LEDs, which are illuminated including black colors. Here this does not happen.
The differences in the contrast plan are noticeable immediately
Also precisely by this picture on the amoled screen is clearly visible even under bright sunlight. IPS technology allows you to consider something on the display on a clear day only twisting the backlight brightness, which leads to sharply increasing energy consumption.
Phones with AMOLED-Display
As already mentioned above, with organic LEDs on "You" only company Samsung. But this does not mean that this manufacturer does not sell their screens to someone else. In particular, the 6-inch amoled panel is part of a popular smartphoneOnePlus 5t . The resolution of this screen is 2160 x 1080 pixels, and the width of the side frame is minimized.
The screen created on the basis of organic LEDs possessesMeizu Pro 7 . This device is much more compact - the diagonal of the display installed here is only 5.2 inches, and the resolution is 1920 x 1080 points. A distinctive feature of the device is the presence of a second screen located on the rear panel, right under double camera. When it is created, AMOLED technology was also used.
As for South Korean smartphones, there is no point in allocating specific models. Already quite a long time, the amoled display is made even relatively inexpensive devices released by Samsung. The exception is only super-budget models sold for 4000-5000 rubles.
for amoled-screens The future is undoubtedly. Such displays do not have serious deficiencies, giving out an image with better color reproduction and maximum viewing angles, while spending a very small amount of electricity. The only problem is at a higher cost of such panels. It brings the percentage of suitable products far from the record. Also mention can be about not the largest pace of production - alas, but one Samsung company serve the requirements of the smartphone market is extremely difficult.