QD OLED – OLED TVs from Samsung. These televisions are equipped with displays developed in-house by Samsung. The production of these screens is based on the use of OLED diodes and QLED materials to create color tones. TVs with QD-OLED screens first appeared on the market in 2022. In 2022, Samsung OLED TVs with 55-inch and 65-inch screen sizes began to be released. At the end of 2022, a new line for the production of 77-inch displays was launched. In 2023, you can buy a Samsung OLED TV with a 77-inch screen, such as the S90C or S95C model.

What is a QD-OLED screen?

QD-OLED screen – Samsung developed these screens for premium TVs and monitors. These screens are developed using new technology owned by Samsung. A layer of blue organic self-emitting diodes is used as the backlighting. The number of LEDs equals the number of subpixels, which is 24,883,200 organic diodes. The image (brightness) is controlled at the subpixel backlight level. On top of the backlight layer is a layer of subpixel filters made of quantum dot materials.


QD OLED display structure

The QD OLED display consists of 6 layers:

  • Layer 1: The glass, which acts as a rigid element
  • Layer 2: This layer is the substrate on which the organic LEDs and the tracks on which the LEDs are controlled (change the brightness of the glow).
  • Layer 3 is the layer on which the filters of quantum dot materials are located. As you know, televisions and monitors use three colors (blue, red, and green). The filter layer has red and green filters made of quantum dots; a transparent diffuser is used for the blue color because the backlight generates the blue color. 
  • Layer 4: Glass, between the two layers of glass, is a layer with OLED diodes and a layer of filters. The glass rigidly fixes these layers, preventing the backlight from shifting relative to the filter.
  • Layer 5: a plastic film, the film protects the glass from damage, giving greater strength to the display, and also serves as an anti-reflective filter. 
  • Layer 6: a layer of foil is glued to the back of the display. 

This makes up the QD OLED display, as all the electronic components are miniaturized, and the display is 1.1 millimeters or 0.04 inches thick. The OLED not only emits light but also heat; there is a layer of foil material on the back which acts as a heat sink and increases the rigidity of the display. 

In the picture, you can see what elements makeup Samsung’s OLED display. 

What’s inside a Samsung OLED TV

OLED TVs are more complicated than LED TVs. While an LED TV usually consists of two electronic units (power supply and main board), Samsung’s OLED TV has three units, in addition to the power supply and main board, there is also a large OLED display control unit. Because of the structure of the OLED panel, the power consumption of OLED TV is 30% higher. I think Samsung will gradually reduce the power consumption of the OLED TV. You can see what elements are under the Samsung TV cover below.

Main board: The main board containing the brain of the TV, processor, memory, digital tuner and signal connection ports.
OLED display control board: This board is the OLED panel control board, it controls all the sub-pixels of the screen.
Power board: This board converts the mains voltage into the voltage needed to run the TV.

Who makes QD-OLED displays for Samsung TVs

QD OLED displays are produced by a Samsung Corporation – Samsung Display division. Until 2022, this division owned the QLED TV panel factory. In 2022, this plant was sold to the Chinese company TCL. QD OLED panels are produced in Korea at Samsung’s new plant. Samsung sees a great future for QD-OLED panels and continues to invest in this area. The company is focusing on lowering the cost of QD-OLED panels to compete on price with LED TVs. It is also expanding the range of panels available in 2023, announcing 77-inch panels in addition to the standard 55- and 65-inch panels. 

FAQ Samsung OLED TVs

  • Who makes the screens for Samsung OLED TVs?  
    • Samsung makes QD OLED screens.
  • LG and Samsung OLED TVs are the identical TVs:
    • No LG makes its OLED panels using a different technology. Samsung and LG technology is based on the use of organic LEDs; they are similar but technically different. 
  • Oled TVs are resistant to burn-in: 
    • TVs with OLED screens can get burn-in. This is natural; organic diodes emit light, gradually breaking down. 
  • Samsung OLED displays can be repaired?
    • No, it is not possible; structurally, it is one element in case of display failure. It will have to be replaced. 
  • I choose Sony Panasonic; Hisense also makes OLED TVs; what can I say about other manufacturers?
    • At the moment, only two companies make large OLED panels for TVs. They are LG and Samsung; everyone else buys OLED panels from Korean companies. 
  • What is the lifespan of an OLED TV panel?
    • The lifespan of an OLED TV is about seven years; there is a good chance that after 2-3 years, you will notice a burned screen.
  • Are OLED TVs healthy?
    • No, OLED TVs are not healthy, nor are they harmful. 
  • Is OLED safe for the eyes? 
    • Yes, this is normal light, which is no different than LED light. To reduce eye strain, manufacturers often add an eye protection mode to the TV or monitor. In this mode, the image takes on a yellow hue that is perceived more relaxed.
  • Does sunlight damage the OLED TV?
    • Although direct sunlight should be avoided, it cannot damage the TV screen. Only the ultraviolet spectrum of sunlight can cause damage. Because window glass neutralizes UV radiation, there is none inside the house. The OLED layer of the TV screen is protected by glass (it is between two layers of glass), which also neutralizes ultraviolet radiation.
  • Does heat affect the OLED TV?
    • Yes, it is necessary to avoid unnecessary heating of the OLED; OLED material does not like heat, increasing the aging rate.
  • Is cold bad for OLED?
    • Cold in itself is not dangerous for OLED because the display has two layers of glass, and rapid temperature changes can damage the display. You should not turn on the TV immediately if you bring it in from the cold; you must let it warm to room temperature for 3-4 hours.
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