Fig. 5From: Use of Recycling-Reflection Color-Purity Enhancement Film to Improve Color Purity of Full-Color Micro-LEDsStructure of high-color-purity full-color micro-LEDs: a flexible FR4 substrate, b die-bonding of blue micro-LEDs on FR-4, c dispensation of red-light QDs layer, d dispensation of green-light QDs layer, e and completion of high-color-purity full-color micro-LEDs with RCPEFBack to article page