AMOLED panel screens in Super and Plus versions represent a new standard in display technology. Such monitors are very often used in flagship smartphones, TVs, and tablets.
General description
The first experience with the implementation of this system is implemented in the mobile device Samsung Ultra Touch S-8300 (2009). Now the technology is actively used by all manufacturers of screen devices.
AMOLED stands for Active Matrix Organic Light Emitting Diodes. The features of this variety of displays include the fact that each pixel is lit by an individual diode while not requiring the use of additional elements or liquid crystals. Compared to other technologies, AMOLED screens have several advantages and disadvantages.
AMOLED structure:
- First comes the cathode layer, in which the light parts are organic elements driven by an active matrix of transistors with a thin-film layer. The parts shape the strength of the current flowing through each diode, adjusting the intensity and color of the pixel.
- Next comes the anode layer.
- The final stage of the design includes a substrate of silicone, metal, or other material.
In AMOLED screens, the associated pixels are placed according to the PenTile system, which was developed by Candice Elliott Brown. Each element contains five staggered sub-pixels (blue diode in the center, paired red and green parts in the corners). Such a scheme guarantees a stable brightness of the screen while maintaining reduced power consumption.
Advantages of AMOLED-screens
The main advantage of this technology is the direct dependence of power consumption on the brightness of the picture. The amount of power the display consumes varies significantly depending on the color and brightness shown. In this case, the monitor requires less power to display shaded areas.
A similar effect gives a deeper black color because such pixels are not illuminated at all. This advantage was successfully used by Samsung in the development of Always on Display technology. These monitors provide increased viewing angles in the vertical and horizontal planes (up to 180 degrees).
At the same time, brightness, color saturation, and contrast are not spoiled. AMOLED panel screens are thinner than their outdated counterparts, which allows them to be mounted in elegant and compact housings.
The free space is used for a built-in battery with high capacity and other important components. In addition, these displays have a wide color palette and a shorter response time.
Disadvantages
In these panels, the power consumption is directly related to the image quality, which will require more power when displaying light colors. Another disadvantage is the unreliability of the locks in the inner part of the monitor. At the slightest deformation, the screen often fails. During depressurization, the display quickly fades and ceases to function fully after 2-3 days.
With regular activation of bright colors, the lifetime of AMOLED panels is significantly reduced. At the same time, the associated pixels burn out at different rates, and the brightness limit is lower than that of LCD analogs.
The initial disadvantage of screens was considered to be the high cost of manufacturing and repairing the products, but with the introduction of innovations, this issue has receded into the background.
Conclusion
Many experts continue to argue about the pros and cons of AMOLED screens. Most of them tend to believe that this technology is a breakthrough for the future, as more and more manufacturers of mobile devices and televisions are moving in this direction.