无抖动机械式光开关结构设计

纳米金属光栅的透射光谱对临近材料折射率变化非常敏感,可以通过改变介质折射率实现可调的彩色滤光,将双层纳米金属光栅应用于显示装置上具有工艺制备简单、色度和对比度高等特点。采用纳米金属光栅结构,通过严格耦合波理论模拟和表面等离子体共振原理设计了一种新型的透射式电润湿显示器件。在650nm周期、空气环境下,通过数值优化在690nm波长处得到了50%的单色透射,而在水溶液的环境下,由于共振移动到红外,可以实现黑态显示,从而验证了灰度的可调。该研究将为轻薄、节能和高分辨率的新型电浸润显示器件设计提供全新思路。 更多还原

Structure Design of Mechanical-optical Switch with No Jitter

Bilayer metallic nanowire gratings(BMNGs) have great potential to be used in display devices attributed to the unique surface plasmon resonant color shift by changing ambient refractive index. It is demonstrated a novel prototype of transmissive electrowetting display based on bilayer metallic nanowire grating by using rigorous couple wave analysis(RCWA) and analytical surface plasmon resonant formula. Peaked wavelength of 690nm and transmittance of 50% under air ambient were obtained based on a BMNG with pitch of 650nm. With the ambient materials changing from air to aqueous solution, the switching from bright red color state to dark state was fulfilled. The change of gray scale was proved. This study will contribute to the novel electrowetting display with compact structure, low power consumption and high resolution.