What is an OLED TV? Difference between OLED TV and LED TV, QLED TV and 4K . TV

OLED TVs with many advantages such as high contrast, wide viewing angle are increasingly interested by users. Join Tnhelearning.edu.vn to find out what OLED TV is and what is the highlight of this TV compared to regular LED TV through the article below!

What is an OLED display?

Define

The OLED screen is composed of organic light-emitting diodes, when an electric current flows through the diodes, they will glow. With such a structure, OLED screens are much thinner than LCD screens and deliver amazing, fresh colors and picture quality.

History

In the mid-1970s, organic semiconductors were discovered by Alan Heeger, Alan MacDiarmid, and Hideki Shirakawa.

In 1987, the first workable OLED panel was developed by Ching Tang and Steven Van Slyke while the two were working in the Kodak camera company’s laboratory.

In 1990, Sony started researching OLED display products. In 2004, the first OLED screen product was completed, but then Sony halted production of this screen line due to expensive production costs. In 2017, the A1E OLED TV was released after years of hiatus.

Until recent years, Samsung and LG were the two brands that put OLEDs to use in large-screen TVs. However, then because of the development of QLED technology, Samsung changed its development direction. As a result, LG has risen to prominence in the high-end TV segment in 2018.

Besides, Apple now also put OLED to use first in the Apple Watch smartwatch in 2015 and then in the iPhone X phone.

Advantages of OLED screen technology:

• Wider viewing angle.
• Black shows deep.
• Low power consumption, good image quality, lightweight and durable.
• High brightness and contrast
• Capable of customizing in many different shapes.

Disadvantages of OLED screen technology:

• Burn-in phenomenon occurs.
• The production cost is high, so the product price is still high and not suitable for everyone to access.
• This screen is also susceptible to damage when exposed to humid environments or water.

What is an OLED TV?

What is OLED technology?

OLED stands for Organic Light-Emitting Diode ie organic light-emitting diodes .

An OLED panel usually has a glass or plastic protective layer on the top and bottom.

• The top layer is called Seal and the bottom layer is Substrate.
• Below and above the two layers of protection are the negative terminal, also known as the Cathode, and the positive terminal, also known as the Anode.
• Finally, there is an emissive layer between all the self-illuminating upper layers next to the Cathode and the conducting layer next to the Anode.

Definition of OLED TV

OLED TV is a TV that uses a panel with these organic light-emitting diodes, each pixel itself will light up and turn on and off independently when an electric current flows through without the need for a lamp .

Advantages and disadvantages of OLED TV

Advantage:

• Energy-saving: Due to self-illuminating without a projector lamp, OLED TVs save more power than conventional LED TVs.
• Beautiful picture quality: Each pixel on an OLED TV plays a different role and It automatically turns on / off independently continuously, so it gives the TV an extremely good color display, impressive depth of image and can create absolute black on the TV.
• Lighter: By using only one organic panel, OLED TVs are lighter and more durable than LED TVs.
• Thinner TVs, Better User Experience: Since there is no need for a backlight, the panels on OLED TVs reduce many materials, giving the TV a slim and beautiful appearance.

Defect:

• The price is quite expensive: Because of the high production cost, the price of OLED TVs on the market is also high (usually over 30 million to hundreds of millions).
• Not diverse models: Currently on the market, the number of OLED TVs is quite small and only available in the segment of TVs over 50 inches.

The difference between OLED TV and other TV lines

OLED TV with LED TV

OLED TVs are different from LED TVs in that, OLED TVs don’t need lights while LED TVs need LED backlighting to light up on the screen. However, that is why OLED TVs are always much thinner than LED TVs. Up to now, this is the generation of TVs known as the thinnest TVs in the world.

A very special and unprecedented thing is that it is possible to bend the screen of the TV and this is also a very different point from the LED TV line.

Although OLED TVs provide more beautiful colors, more detail, for more absolute blacks, they are more energy efficient . Because it has pixels that automatically turn off, it is considered more energy efficient than LED TVs.

OLED TV with QLED TV

• QLED TV is a TV developed based on LED TV screen technology, combined with Quantum Dot quantum dot technology to give users a great color experience.
• OLED TVs use organic light-emitting diode panels, each pixel will automatically light up when an electric current flows through without the need for an LED backlight system.

QLED TVs have the advantage of brightness, long life and relatively low cost. And OLED TVs are quite expensive but bring high sharpness, super wide viewing angles, giving you the absolute viewing experience, without changing the quality with all viewing angles and the ability to save power.

Criteria	OLED TV	QLED TV
TV company	The famous OLED TV brands today: LG , Sony and Panasonic.	Famous QLED TV brands in the market: Samsung, TCL, AQUA.
Design	OLED TV uses an extremely thin OLED panel and no need for blacklight, with an unbelievable thickness of only 2.57mm. As a result, they are often lighter in weight and thinner than QLED TVs.	Take the main curved and minimalist screen design.
Screen brightness	OLED TVs have near-perfectly uniform screens and maintain fidelity from any angle, with the picture not changing much when viewing angles.	QLED TVs have an advantage in terms of brightness because they use a separate backlight instead of relying on each pixel to produce its own light. In addition, QLED TV’s quantum dots are capable of maximizing that light by producing brighter colors in the color spectrum without sacrificing saturation.
Screen Contrast	OLED screens display absolute deep blacks thanks to the structure of the screen made of organic compounds with a special molecular structure, which can self-illuminate when an electric current is passed. When there is no current, the RGB value is 0-0-0, the pixels are not activated, so that the OLED TV has very good contrast and sharpness.	QLED TVs always need current to activate the backlight, so the deep blacks of QLED TVs cannot be as absolute as OLED.
Price	Due to high production costs and not diverse models and sizes, the price of OLED TVs is somewhat higher than that of QLED TVs: Ranging from about 30 million to over 85 million.	Ranging from 12 million to over 85 million.

Reasons you should buy an OLED TV

• Excellent display quality: You can experience extremely vivid images with vibrant colors.
• Wide viewing angle: You can watch TV in many different positions without discoloration or fading thanks to the excellent display and wide viewing angle.
• Absolute black: OLED TV possesses the ability to display absolute black.
• Ultra-thin, luxurious design: Because it does not use the lighting system as well as minimizes the panels, OLED TVs have an extremely thin design.
• Power saving: Thanks to the structure that does not need a backlight and the pixels will automatically turn off when there is no need to display, OLED TVs help save power significantly compared to other TVs.

Please refer to some OLED TVs being sold at Tnhelearning.edu.vn:

Above is information about OLED screen technology that Tnhelearning.edu.vn has briefly outlined. Don’t hesitate to leave a comment for support if you have any questions!