What is OLED in TVs?
Few know that OLED technology has been around for decades. For the first time, it was talked about in the 70s of the last century and received practical application in 1987 from the famous manufacturer of photographic equipment Kodak, which can be safely called the father of technology. There was no talk of televisions at the time. Subsequently, all developments related to OLED were sold to Korean LG.
Almost 20 years later, in 2004, the first TV with organic LEDs appeared. Of course, like any new technology, OLED has faced many challenges, the main of which are high costs and short service life. It took another six years to complete, and in 2010, LG introduced its first 15-inch slim OLED TV. And only two years later, the record at that time of a huge 55-inch TV was shown.
In 2013, the development of the technology suffered a blow when Panasonic and Sony stated that they would not investigate further and expressed doubts about the commercial success of OLED. Due to profitability issues, Samsung and the company stopped producing OLED TVs. And only LG continued to invest in development. Who was right, we think you guessed it. As of 2017, all well-known TV manufacturers are buying OLED matrices from LG Display.
What is OLED
The screen of a modern OLED TV consists of a black background, an OLED Matrix, a color filter and a polarizing glass.
Directly, OLEDs are several thin layers of organic molecules (polymers) between positively and negatively charged electrodes. The voltage supply makes the particles emit light. Therefore, additional lighting is not required. Self-adjusting pixels are turned on and off individually.
Some manufacturers have tried to apply three subpixels of different colors when creating a Pixel. With this production technology, the percentage of marriage turned out to be too high. LG took a different path and began to use white LEDs (hence, the most accurate name of the technology is WOLED) in combination with a color filter. This made it possible to produce a large number of quality panels with a uniform gloss throughout the area.
Advantages of OLED
Perfect black: since in OLED TVs self-inducing pixels can be turned off completely, the user gets the deeper black that manufacturers boast so much about. The consequence is the so-called infinite contrast. On the LED TV, the lights never go out completely, so instead of black, we see dark gray tones. Especially strong this difference is seen in the night scenes.
Sharpness is another distinctive feature of the technology. Thanks to the independent operation of each pixel, the OLED image has perfectly sharp edges.
Thickness is one of the main triumphs of organic diode panels. Thanks to the small number of layers and the lack of separate lighting, these TVs are incredibly thin and light, and taking away the power and control, you can get a perfectly flat screen a few millimeters thick, which sticks to the wall.
Quick response: it is not surprising that OLED-TV often positions itself as a gaming solution, because such an important indicator for the player as the screen response time is almost equal to zero expensive. And the refresh rate of 100 / 120Hz and low output latency (input delay) will cause ecstasy in any hardcore console player and sports enthusiast.
Wide viewing angles-OLED provides a clear image without color distortion at almost any angle. This advantage will be relevant for a large family / company or, for example, in a sports bar.
The flexibility of OLED screens allowed the creation of roll-up TVs. The practical value of such a device is still in doubt, but the surprise effect for guests is expected for a long time.
Thermostability-almost not relevant for the average user, the advantage is very useful for business. Unlike the competition, OLED works at temperatures from -40 °C to + 70 °C and can be used on equipment designed for extreme conditions.