The MicroLED-Info newsletter (November 29, 2022)

Researchers from Korea-based KAIST institute developed a microLED-powered wearable patch that acts as an UV-induced inhibitor for melanogenesis, the creation of brown or dark pigments that can lead to skin diseases.

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LEDs have been used to photo-stimulate in skin care, but normal devices cannot conform to the skin shape, they operate from a distance which is problematic. If the patch is connected to the skin, it achieves much more effective photo-treatment. In this research, the team fabricated a 4x4 cm² wearable device made from an array of 100-micron sized microLED chips, vertically interconnected for high flexibility.

In August 2022, we posted that both Samsung Display and LG Display started to develop microLED microdisplay technologies. According to a new report from Korea, Meta is in talks with both Korean companies regarding the future supply of both OLED and MicroLED microdisplays.

It is said that Samsung targets AR devices with its microLED microdisplay technology, while it targets VR devices with its OLED microdisplays. Samsung's microLED displays will achieve a resolution of 6,000 to 7,000 PPI (higher than its OLED devices).

This is a sponsored post by STAr Technologies

With more and more mature technology for Mini- and Micro-LEDs fabrication, manufacturers are gearing up for the production phase and critically looking for more test efficiency and fast testing for the optical devices. STAr Technologies, as the leading Mini- and Micro-LEDs tester supplier continuously develops measurement technology to enhance optical testing capabilities and parallel test efficiency and to achieve cost-effective high-volume production.

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Image: STAr Unicorn-LAIT II Tester Equipped EMI Shielded Test Environment

STAr’s Unicorn-LAIT II tester is designed to meet diverse industry requirements and to ensure accurate and reliable measurement results in the shortest amount of test time, based on an integrated parallel test architecture. The tester is ideal for electrical, optical measurement, driver functionality, RGB testing, etc. The tester is equipped with high efficient Dark and EMI Shield test environment dedicated to LED and Laser Applications. The system can be upgradeable with an autoloader for a fully automatic test with a cassette.