Bioinspired reflective display based on photonic crystals

Abstract

Reflective displays have the advantages of energy efficiency, high brightness, eye protection, and good readability, making them an attractive display technology. Photonic crystal (PhC) structural color is highly regarded as an ideal choice for reflective displays for its ecofriendliness, colorfastness, and adjustability. In this review, we introduce the fundamental classification and manufacturing methods of PhC reflective displays. We systematically summarize the display principles of PhC‐based displays driven by various stimuli. Furthermore, we present the latest research advancements in PhC displays based on smart actuators. Additionally, we offer a detailed overview of the current research status and application prospects of liquid crystal structural color displays and three‐dimensional PhC displays. Finally, we discuss the challenges faced by PhC displays and provide insights into their prospects.

Dual-Mode Multicolor Display Based on Structural and Fluorescent Color CdS Photonic Crystal Hydrogel

“…Photonic crystals (PCs) have been widely applied in the field of display, , information encryption, anticounterfeiting, , and sensing. , Their popularity can be attributed to their artificial design and assembly synthesis, forming nanoscale structures with periodic node patterns, which facilitate and precisely control the optical properties of materials . PCs are periodic structures of constituents with alternating dielectric constants on a length scale comparable to the wavelength of light, which can prevent light from propagating in certain directions at specific frequencies .…”

Advances in the construction of photonic structures with dual stopbands and beyond

“…Simple photonic structures have a wide range of applications in diverse fields, including optoelectronics, sensors, panel displays, encryption, anti-counterfeiting, quantum dots, fluorescent dyes, and multiple label-free detection in biomedicine. 73–91 Compared to photonic structures with a single stopband, photonic crystal materials with multiple stopbands can increase light trapping in different regions at the same time for photocatalysis and broaden the absorption spectra for enhanced light-energy conversion. Moreover, photonic structures with multiple stopbands also possess a higher information capacity in coding and anti-counterfeiting, etc.…”