Ultrawide color gamut single-pixel dynamic color manipulation based on yarn muscles-graphene MEMS

This work investigated the single pixel color modulation in a composite structure of yarn muscles graphene mechanical system and photonic crystal multimode microcavity. The position of graphene in the microcavity is modified by changing the yarn muscles stretching using different current levels. This helps in adjusting the light absorption of graphene to different colors. Hence, red, green, blue, and their mixed colors can be displayed using a single pixel; color gamut of this system can reach 96.5% of RGB. The proposed system can avoid the spontaneous oscillation caused by large strain energy. This solution can provide insights into the design of low power, ultrahigh resolution, and ultrawide color gamut interferometric modulator display technologies.