We can see that the AMOLED display is currently a trend for high-end smartphone screen. This is because the AMOLED screen is better than the LCD screen. For example, the color is more vivid, the screen is brighter, and it is more eye-chatching. Many popular models currently use AMOLED screens, Samsung screen uses widely the AMOLED screen on high-end smartphone. However, now the mobile phone industry is changing rapidly. In fact, with the stunning appearance of the LG Optimus G Pro with the Full HD IPS LCD panel, it brokes the situation of Samsung AMOLED screen domination.
The current mobile phone screens are various and display effects are different. But in the end, their screen materials are nothing more than the LCD and OLED mentioned above (the Nokia Lumia 928 uses OLED material). Let’s take a look at the Samsung AMOLED screen.
OLED: Organic Light Emitting Display
An organic light-emitting display, is a newly emerging category on mobile LCDs and we call it as a “dream display”. Unlike traditional LCD displays, OLED display technology eliminates the need for backlights. In addition, it uses very thin organic coatings and glass substrates that illuminate when current passes through. Moreover, the OLED display screen is lighter and thinner, has a larger viewing angle, and can significantly save power. Although OLEDs with better technology will replace LCDs such as TFTs in the future. Organic light-emitting display technologies have shortcomings such as short lifetime and large screen size. The AMOLED series panels developed by Samsung are based on OLED materials.
Samsung AMOLED screen: Active Matrix/Organic Light Emitting Diode
It is also an active matrix organic light emitting diode panel. Compared with traditional liquid crystal panels, AMOLED has the characteristics of faster response, higher contrast, and wider viewing angle.
Super AMOLED: AMOLED technology currently promoted by Samsung Electronics Co., Ltd. Also known as “Super Active Matrix Organic Light Emitting Diode” or “Advanced AMOLED Display Technology”. It is popular in the use of mobile devices, such as smart phones and tablets. The main difference from other display technologies is that the touch is actually operated on the panel without passing through the air layer. Compared with AMOLED, Super AMOLED has the advantage of having a brighter screen, reducing solar reflection and reducing power consumption.
Advantages of AMOLED
1. Compared with the traditional LCD, the AMOLED screen is very thin. The touch layer can be integrated in the screen. This makes ultra-thin machine has an advantage.
2. AMOLED self-illumination, a single pixel does not work when displaying black, and low power consumption when displaying dark color.
3. The AMOLED can be a raw material to make flexible screen, which should be more durable and less ductile compared to the LCD screen of the glass substrate.
4. AMOLED and SUPER AMOLED have a very wide color gamut and can reach 110% NTSC.
LCD cannot reproduced some colors accurately but AMOLED screen can express. For example, the blooming rapeseed has not been seen on the ordinary LCD because it has exceeded the gamut of the display. In order to solve this problem, Sharp’s high-end LCD screen deliberately adds yellow sub-pixels to express vivid yellow.
5. AMOLED has high contrast, theoretically the contrast can be infinite, and there is no light leakage.
6. AMOLED has extremely fast response speed, and the response time is only 1/1000 to 1/100 of LCD.
Disadvantages of AMOLED
1. Screen Burning Phenomenon.
Burning the screen means that if the screen displays a still image for a long time, it will leave a residual image. At present, the problem has not been completely solved, and only the optimization is possible. This is exactly the case and Apple has vaccinated users on its official website for iPhone X with OLED screen.
2. Because AMOLED is self-illuminating, there may be different degrees of aging of different pixels in the aging process, resulting in different brightness, so the color cast problem is more serious.
3, AMOLED emphasizes green (green is too bright). At first glance it is amazing, but when you look at it for a long time, it will be visually fatigued.
4, The screen life is short,
AMOLED life is usually only 5,000 hours, lower than the LCD life of at least 10,000 hours.
5, Compared with the same resolution LCD, the graininess is stronger: Compared with the LCD RGB type lattice array arrangement, the AMOLED PGB type lattice array determines its inherent disadvantages in principle. It has strong grain feeling and protruding edges. Problems such as severe jaggedness. At present, this problem can be solved to a large extent through the 2K screen, such as Samsung’s S8. However, the reality is that many manufacturers do not use 2K screens for cost or power consumption, but use 1080P screens, graininess problems still exists.
Whatsapp us now at +601898870 Huawei as one of the major brands that uses Android as its platform has this problem as well.