OLED displays
What is OLED technology?
OLED – is an abbreviation of ” Organic Light Emitting Diode” (Engl .: “OLEDs”), this reduction denotes all the techniques, running on these LEDs. The technology has been used for several years in displays, for example, when creating smartphones or tablets. Use it on television screens, for example, in LG Smart TV, started in 2016.
OLED screens themselves produce light and colour: if the image area should be black, then the diodes responsible for it simply turn off. OLED consists of four organic layers of semiconductors between two electrodes, at least one of which must be transparent.
A layer with hole conductivity (HTL) is installed on the anode during manufacture. Between the two structural elements lies a layer of a mixture of polymers PEDOT / PSS, which prevents the penetration of indium (chemical element). Then a dye is applied, the so-called recombination layer. Finally, an electron transport layer follows.
Despite the numerous layers, the total thickness of the structure lying between the two glasses is from 100 to 200 nanometers. Direct current causes the organic layers to glow and reproduce the image.
OLED display: key benefits
The OLED technology is increasingly entering our lives, but at first, it threatened the fate of being an eternal prototype. The popularity of OLED is associated with amazing image quality.
- Compared to competitors, OLED displays are narrower and lighter.
- From whatever perspective you look at the screen, the lighting will be the same.
- Very high response speed, stunning colours and excellent contrast.
- High level of energy saving due to the lack of backlight (light substrate).
- The structural elements of OLED screens are organic in origin and contain less harmful substances than liquid crystal panels.