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To address these challenges, a quantum dot organic light\u2010emitting diode (QD\u2010OLED) architecture utilizing a blue OLED with QD for wavelength conversion is developed, achieving dual\u2010wavelength emission (470 and 630 nm) in a simplified structure. The use of hydrocolloid as a substrate ensures skin adhesion, moisture retention, and attachability. The device exhibits high mechanical resilience with 190% stretchability and stable optical performance under deformation for over 80 h at low temperatures (&lt;39\u00a0\u00b0C). By combining photomedicine functionality with flexibility, the platform demonstrates 26% bilirubin degradation under blue light and 46% human skin keratinocyte (HaCaT) cell proliferation under red light. Furthermore, the integration of organic photodiodes enables real\u2010time biosignal detection, such as photoplethysmography, expanding the platform's potential in personalized healthcare systems. 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