Samsung plans full-scale investment in next-generation display QNED from next year

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 "Contrast ratio, response speed, high brightness" are all superior to OLED and micro LEDs

Samsung Display has begun developing quantum dot nano-light emitting diodes (QNED) as a next-generation display that surpasses organic light emitting diodes, and is expected to begin full-fledged investment in 2021.

QNED refers to a self-emitting display utilizing a nanometer (1nm = 1 billionth of a meter) semiconductor particles quantum dot (QD) and gallium nitrogen light emitting diode (GaN LED). This is theoretically evaluated as having a long life and high brightness compared to the organic light emitting diode (OLED), low power consumption, burn-in removal, etc. strengths.


"QNED is the highest-end display with both contrast ratio, high response speed, and high brightness characteristics of micro-LED, which is the biggest advantage of QD technology and OLED TVs being used in LCD (LCD) TVs," said Yim Seong-seong, Managing Director of Ubiresearch, at the Next Generation Display Technology and Industry Outlook Seminar held at Samsung Dong Coex in Seoul on 16 July.

"With Samsung Display completely cleaning up its LCD business, the emergence of QNED could be an opportunity for Samsung Display to make large-scale investments of tens of trillion saophodontists," he said, adding, "This could be a mixed opportunity for Chinese display companies to select and invest in next-generation display technologies as they are actively considering OLED investments as a next-generation business that connects LCD."

In fact, the market predicts that Samsung Display will begin to invest in QNED in order to dominate the large display market. This is because the gallium nitrogen light emitting diode of The QNED can obtain a variety of wavelengths of light at the same time in one device is advantageous in terms of oled and micro LED production cost.

"Samsung Display is expected to invest 30,000 QNED per month from q221," said Lee Chung-hoon, CEO of Ubiresearch, "Samsung Display has confirmed its investment in the QD OLED line at a size of 30,000 per month, but the additional investment (90,000 copies per month) is highly likely to be converted to QNED. When QNED is released as a TV, it is likely to encroach on WOLED (LG Display's large OLED technology) in the premium TV market."

However, the time when QNED is applied to real TV and released to the market is expected to be after 2021 due to technical difficulties. QNED pixel layer is implemented as a cylindrical-shaped nano-rod light emitting diode (nano-rod LED) through the inkjet printing process, which is why it takes time to ensure mass production capacity.

"According to Samsung Display's QNED patent, nano-rod LEDs form an LED structure layer on the wafer, Using a laser lift-off (LLO) to separate the nano-load LED, the light value of the separation surface is high, the defect rate is high in the electrode contact, and the chemical lift-off (CLO) method instead of LLO is expected to be applied to the new application, in addition, the inkjet process is expected to be newly applied, the dispersion in the inkjet process or the oil-based force (the power of particles under the electric field) to improve the accuracy of the nano-led through the concentration of the flow, and the technology of nano-led technology such as "technology" technology such as "technology" was described.

On the other hand, QNED, which is being developed by Samsung Display, will be mass produced by samsung electronics DS LED business team to manufacture nanoload LEDs based on gallium nitrogen, and Samsung Display will place it on an oxidized thin film transistor with inkjet printing equipment.

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