Samsung is the leading OLED display supplier at home and abroad, but on large-size displays (such as TV), the Korean manufacturer has gradually lost interest in OLEDs. They think QLED is more suitable for high-end TV than the former. Display technology, and now, Samsung has also had new moves.
According to the Yonhap News Agency, Samsung is close to completing the acquisition of QLED Vision QD Vision, and the transaction may reach 70 million US dollars, which is the acquisition of US auto parts supplier Harman International Industry by 8 billion US dollars earlier this month. After the company (Harman InternaTIonal Industries), Samsung has another big hand. After the transaction is completed, QD Vision will become part of Samsung's R&D department, which is responsible for developing QLED displays suitable for use in the consumer electronics market.
Who is QD Vision?
QD Vision, formerly known as Color IQ, is headquartered in Massachusetts, USA and was founded in 2004 by MIT researchers. QD Vision is the first company to focus on quantum dot display technology, and is one of the few companies in the world that has mastered this technology (the other is Nanosys). It has the world's largest quantum dot manufacturing plant and was once recognized as a "quantum dot." The father of the display."
“The company has fully mastered the color-color controllable technology of quantum dots, which can be used in PC displays and TV sets,†said Co-Sullivan, co-founder of QD Vision.
Prior to this, QD Vision has also been working with TV manufacturers at home and abroad, such as the development of quantum dot TV with Sony in 2013, and the provision of quantum dot films to TCL in 2015. Interestingly, in 2010, QD Vision also cooperated with LG Display to jointly develop QLED display.
However, this year, QD Vision seems to have encountered some trouble. In the past October, foreign social media Quora broke the news that QD Vision was divested by major shareholders, and the company was in crisis. Many projects had to be interrupted. One stone stirred up a thousand layers of waves, and the industry’s doubts about QLED were heard all the time. Undoubtedly, Samsung's acquisition of QD Vision has given a booster to QLED display technology supporters.
The world is bustling, and the importance of QD Vision to Samsung is self-evident. Samsung said earlier this year that it will launch 14 SUHD TVs using quantum dot technology, and QD Vision's technical reserve. (such as quantum dot technology and patents) officially needed by Samsung.
What is QLED? What is the difference between OLED and OLED?
QLED is an abbreviation for "Quantum Dots Light EmitTIng Diode Display", which is a quantum dot light emitting diode. Before we get to know QLED, let's take a look at the characteristics of quantum dots.
Quantum dots are small-sized spherical-shaped semiconductor particles of nanometer size. When a voltage is applied, self-luminescence is generated, and light of the same wavelength is absorbed and re-released. In addition, quantum dots have another characteristic: when stimulated by light or electricity, quantum dots emit colored light. The color of the light is determined by the composition and size of the quantum dots, which means that the quantum dots can change the light emitted by the light source. Color, this is the principle of QLED lighting.
The principle of OLED luminescence is quite different. It uses a very thin organic material coating and a glass substrate. When there is current, these organic materials will illuminate, so the biggest feature is that it can self-illuminate. However, OLED displays have not been widely used due to cost and capacity.
The advantages and disadvantages of OLED and QLED have always been a hot issue in the industry, among which the more mature OLED calls are higher. However, because the quantum dot QLED display technology has better color gamut performance than OLED, and its production cost is lower, QLED is gradually adopted by TV manufacturers. Therefore, in the TV industry, QLED is a more grounded solution. Specifically, it has several advantages over OLED:
1, QLED color performance is more perfect, color gamut can easily reach 90% of the color standard BT2020, and OLED can only reach about 70%.
2. The production process of OLED is more complicated, resulting in low production yield, while the QLED process is relatively simple and has inherent advantages in mass production.
3, OLED uses organic materials, luminescent materials have a lower lifetime, and quantum dot crystals are inorganic semiconductor materials, so the working state is more stable, longer life and lower cost.
4. Under the same picture quality, QLED's energy saving performance is expected to reach 2 times that of OLED screen, and the illuminance rate will increase by 30% to 40%, and its energy consumption is lower.
It is worth mentioning that the industry experts also gave a consistent praise to QLED:
Zhu Lei, deputy secretary-general of the Shenzhen Flat Panel Display Industry Association, said that “quantum dot technology is considered to be a future display technology that goes hand in hand with OLEDs due to its huge advantages in color gamut coverage, precise color control, lifetime, and power consumption. It will bring a subversive improvement to display technology, and it will have broad application prospects in the fields of biological sciences and solar cells. It is one of the core technical directions that will change the direction of our future display."
Chen Guanglang, deputy dean of the Industrial Research Institute of TCL Group, believes that "QLED materials are more stable and have higher gamut values. They are the best luminescent materials ever discovered by human beings, with higher brightness and longer life."
From the perspective of future development trends, QLED may become the first choice for downstream TV manufacturers, but for now, its technology maturity is still not as good as OLED, which means that manufacturers need to invest more money to ensure the commercial use of the technology. From the Samsung roadmap, real commercial use may still need to wait a few years.
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