Korean researchers develop a flexible OLED patch for the treatment of chronic dermatitis

Researchers from Kyung Hee University, in collaboration with colleagues from Gachon University and TENTECH Inc., have developed a flexible OLED patch that shows promise for chronic dermatitis phototherapy treatment.

The researchers developed a device that includes a flexible OLED and flexible battery that exhibits excellent mechanical flexibility, adhering intimately to the skin while maintaining a safe temperature range of 20 °C at 5 mW/cm2, stable operation for over 1,000 h, and high moisture resistance.

 

The researchers report that daily irradiation with 632 nm OLED light (9 J/cm2) in mouse models of psoriasis and atopic dermatitis (AD) led to significant recovery of epidermal thickness and transepidermal water loss (TEWL) to near-normal levels. 

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Posted: Apr 02,2026 by Ron Mertens