Micro-LED Displays: Potential to become the next-generation mainstream

Micro-LED DisplaysErik_Lucatero / Pixabay

What You Should Know About Micro-LED Displays

From mobile phones, TVs, to cars and public screens, displays have become an important component in our daily life to convey information. There is an emerging display type — micro-LED display, that has the potential to become the next-generation mainstream, with its ability to be fabricated from tiny to huge sizes. The challenges and opportunities are discussed in the brand-new IDTechEx report “Micro-LED Displays 2020-2030: Technology, Commercialization, Opportunity, Market and Players”.

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Various Motivations Are Driving the Development of Micro-LED Displays

While LCD dominates most display applications and OLED & QD-LCD sit as premium, why are players still pursuing micro-LED?

First of all, micro-LED displays deliver value propositions such as wide colour gamut, high luminance, low power consumption, excellent stability and long lifetime, wide view angle, high dynamic range, high contrast, fast refresh rate, transparency, seamless connection, and sensor integration capability, etc. Some of the value propositions can be provided by alternatives such as LCD, OLED and QD, while micro-LED has its unique value propositions that are pursued by many. The demand from consumers is one of the major motivations. In addition, they can become unique selling points for the suppliers, as marketed by OLED when OLED first emerged.

Micro-LED Displays

Value propositions of LCD, OLED, QD and Micro-LED displays. Image source: IDTechEx report “Micro-LED Displays 2020-2030: Technology, Commercialization, Opportunity, Market and Players” (www.IDTechEx.com/MicroLED)

Another driver comes from the supply side. Current display markets are dominated by LCD, whose manufacturing is shifting to China due to cost competence, as well as OLED in premium, whose technologies are held by South Korea. Getting involved in a new display technology could bring new opportunities to the players.

Third but not last, even more players are following the micro-LED industry. Micro-LED may not be their major focus at the moment but they keep close track on it, just in case when micro-LED really takes off, they can quickly catch up, instead of being left behind.

Proven Science but Not Enough Engineering and Manufacturing?

An increasing number of prototypes have been displayed to the public, which indicates the science is there. However, more challenging are the engineering and manufacturing issues. For instance, conventional LEDs can reach external quantum efficiencies (EQEs) to ~70%, while tiny micro-LEDs less than 10 µm may struggle to reach 20%. Red LEDs are especially challenging with low EQEs and brittle features. Tiny micro-LEDs have large surface areas, which may lead to more defects during the fabrication process. Therefore, solving engineering/manufacturing challenges is important, including die size miniaturization while maintaining the high efficiency, chip design and chip manufacturing technique improvement.

Shifts of R&D Focuses

There are many steps and processes to fabricate a micro-LED display, with varied difficulties. In earlier years, the major focuses of research and development were on die miniaturization, chip design, efficiency enhance, mass transfer and full colour realization. Recently, more and more players realize a complete understanding of all of the processes is the key. Therefore, an increasing number of people put more efforts also on technologies such as inspection, repair, driving, image improvement, light management and high-volume production equipment.

Supply Chain Reshuffle

Involving multiple existing industries and new industries, micoLED displays may shape the existing LED and display supply chain, resulting in a lengthy and complex new one. New technology approach and new products can also provide new opportunities for the players, such as the CMOS industry can take a position in the micro-LED-based micro-display supply chain. Each player will optimize their gain in the value chain, and therefore, a deep understanding of the technology and market status is important.

The report explains technology limitations and capabilities, offers market status analysis, supply chain understanding, player activity tracking, as well as global trends. For a complete understanding, please refer to brand-new IDTechEx report “Micro-LED Displays 2020-2030: Technology, Commercialization, Opportunity, Market and Players”.

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About the Author

Jacob Wolinsky
Jacob Wolinsky is the founder of ValueWalk.com, a popular value investing and hedge fund focused investment website. Jacob worked as an equity analyst first at a micro-cap focused private equity firm, followed by a stint at a smid cap focused research shop. Jacob lives with his wife and four kids in Passaic NJ. - Email: jacob(at)valuewalk.com - Twitter username: JacobWolinsky - Full Disclosure: I do not purchase any equities anymore to avoid even the appearance of a conflict of interest and because at times I may receive grey areas of insider information. I have a few existing holdings from years ago, but I have sold off most of the equities and now only purchase mutual funds and some ETFs. I also own a few grams of Gold and Silver

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