Samsung Electronics has been leading display innovation for years — most notably by pioneering the company’s first commercialization of cadmium-free quantum dot materials. This groundbreaking technology has since become the cornerstone of achieving precise color reproduction and exceptional picture quality. Touted as the next-generation material, it has also drawn attention not just in the TV industry, but also in other sectors like medical devices and solar cells.
With
the introduction of QLED TVs, Samsung has redefined the television landscape,
integrating this innovative quantum dot technology into its products. By
leveraging the properties of these ultra-fine quantum dots, QLED displays
achieve a broader color gamut and higher brightness, elevating picture quality
to levels that traditional LED TVs cannot match.
▲ Samsung QLED
TVs offer the best-in-industry picture quality, audio performance, AI features, and
connectivity.
What
sets Samsung QLED TVs apart from conventional LED TVs? Samsung Newsroom had the
opportunity to meet with researchers Kevin Cha and Jang Nae-won from the Visual
Display Business and disassemble a Samsung QLED TV to reveal the secrets behind
its stunning performance — literally behind the screen.
1. Operating Module: The Brain of TV
1) Rear Cover
▲ The back
panel protects internal components, prevents overheating, supports audio and
provides convenient connectivity.
The back panel of a TV serves more than
just a structural frame; it protects internal components and effectively
manages heat. It houses speakers for audio support and facilitates easy device
connections, improving the overall user experience.
2) Main PCB (Printed Circuit Board)
▲ The main PCB
handles the TV’s essential functions.
The main PCB acts as the brain of the
TV, overseeing functions such as power supply, remote control reception, and
SmartThings connectivity. This critical component controls the entire system,
ensuring the television operates smoothly.
3) TV Tuner
▲ The TV tuner
receives broadcast signals for display on the screen.
The
TV tuner is responsible for receiving and converting broadcast signals for
display on the screen. The rise of streaming services and increased use of
external device connections has led many users to prefer smart monitors without
tuners. However, by definition, a “television” must include this component.
4) AI Processor
▲ The AI
Processor manages AI features like picture and audio optimization.
At
the heart of the Samsung QLED TV is the Q4 AI Processor chip. This advanced
component manages AI functionalities such as picture and audio optimization and
AI assistants. By automatically adjusting both image and sound based on the
surrounding environment, the AI processor makes the viewing experience more
immersive.
5) Speakers
▲ The speakers
deliver immersive sound.
Speakers are more than simple output
devices. With high-resolution audio and a room-filling sense of space, Samsung
QLED TV speakers greatly enhance the viewing experience.
2. Panel
1) Liquid Crystal Display (LCD) Layer
and Color Filter
▲ The liquid
crystal layer and color filter control light, while the board attached to the
bottom of this module controls light at the pixel level to create images.
The
panel’s structure comprises several intriguing components. The liquid crystal
layer and color filter are essential parts of the panel’s basic structure. The
liquid crystal layer controls light passage, while the color filter separates
colors and creates images at a pixel level. The PCB, which is attached to the
panel, precisely controls each pixel, fine-tuning the image.
2) Optical Sheet
▲ The optical
sheet concentrates light from the backlight to enhance brightness.
The optical sheet concentrates light
from the backlight, ensuring a brighter and more uniform image across the
display. By gathering light, it elevates the general brightness of the display.
3) QD (Quantum Dot) Layer
▲ The QD layer
utilizes real quantum dots.
The
next step reveals the QD layer — perhaps the most important core component of
Samsung QLED TVs. The layer actually utilizes quantum dot materials to convert
light sources. This ensures more precise and vibrant colors than conventional
technologies, resulting in lifelike visuals. The QD materials in this layer are
certified No-Cadmium, enabling safer quantum dot TVs that do
not contain harmful substances.
4) Diffuser Plate
▲ The diffuser
plate spreads light evenly across the panel.
This
diffuser plate scatters the light emitted from the backlight and spreads it evenly across the panel, eliminating excessively bright spots and maintaining natural
illumination.
5) Blue LED Backlight
▲ Each image
shows the differences between the Samsung QLED TV (left) and a conventional LCD
TV (right).
Samsung
QLED TVs use a bright and efficient blue LED backlight. When paired with the QD
layer, this backlight produces highly pure colors and achieves greater light
efficiency than traditional white LEDs in standard LCD TVs, leading to enhanced
overall luminance.
3. Three Key Requirements for a Real
Quantum Dot TV
To qualify as a real quantum dot TV, three conditions must be met: the presence of a QD layer, sufficient quantum dot concentration and a blue backlight. Once a TV meets all three conditions, it can be considered a real quantum dot TV.
Samsung
QLED TVs are the only models in the world to satisfy these criteria, earning the ‘Real Quantum Dot Display’
certification from TÜV Rheinland, a prominent international certification body
based in Germany. This recognition underscores the excellence of Samsung’s QLED
technology.
4. Striking Difference Between QLED and
LCD
▲ Each picture
shows the difference between the Samsung QLED TV (left) and conventional LCD TV
(right).
The
differences between Samsung QLED and traditional LCD TVs are evident even to
the naked eye but especially striking when measured with professional tools.
▲ Samsung QLED
TV Color Spectrum Graph[1]
For
Samsung QLED TVs, the wavelengths of red, green and blue colors exhibit narrow
bandwidths and distinct peaks in their emission spectrum, resulting in
meticulous color representation. Viewers can see natural visuals and
exceptional picture quality with rich, deep colors.
▲ Conventional
LCD TV Color Spectrum Graph[2]
In
contrast, LCD TVs without QD layers display generally lower peaks, a wider
bandwidth in green as well as multiple peaks in red, hindering accurate color
reproduction. To compensate, these TVs often require multiple layers for color
correction, ultimately reducing light efficiency.
The
in-depth teardown reveals that Samsung QLED TVs are built with sophisticated
technology that goes beyond basic explanations. Every component that manages
light works in harmony, culminating in breathtaking image quality. The QD
layer, in particular, significantly enhances the richness and vibrancy of
colors. The intricate technology behind these displays makes a substantial
difference in overall picture quality.
At
IFA 2025, Samsung Electronics showcased its technological prowess by
establishing a “Real QLED Zone,” promoting the concept of “Buy Real, Not Fake.”
Samsung QLED TVs represent the pinnacle of cutting-edge technology, pushing the
boundaries of premium viewing experiences. With Samsung’s QLED TVs, viewers can
truly appreciate the remarkable difference that quantum dot technology
delivers.
For more information, please visit: https://news.samsung.com/my/
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