Laboratory of Controllable Preparation and Application of Nanomaterials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China.
ACS Appl Mater Interfaces. 2013 May;5(9):3638-42. doi: 10.1021/am400103d. Epub 2013 Apr 16.
A novel glowing electrophoretic display (EPD) is achieved by luminescent electrophoretic particles (EPs), which is potentially to improve the situation in which the existing EPDs disable in darkness. To combine both modes of reflective and emissive displays, a trilayer luminescence EP is designed and synthesized via an improved miniemulsion polymerization. The luminescence EP is composed of a pigment core, a polystyrene interlayer, and a fluorescent coating. The particle sizes are from 140 to 170 nm, and the size distribution is narrow. Their ζ potential value is -12.4 mV, which is enough to migrate in the electrophoretic fluid by the driving of an electric field. The display performance of the particles in an EPD cell has been characterized under the bias of 20 V. Both the reflectance (491 nm) and fluorescence (521 nm) intensities of the EPD cell remained in a constant range after 30 switches.
一种新型的发光电泳显示（EPD）是通过发光电泳粒子（EPs）实现的，这有可能改善现有 EPD 在黑暗中失效的情况。为了结合反射式和发光式显示模式，通过改进的细乳液聚合设计并合成了三层发光电泳粒子。发光电泳粒子由颜料核、聚苯乙烯夹层和荧光涂层组成。粒子尺寸为 140 至 170nm，尺寸分布较窄。其 ζ 电位值为-12.4mV，足以在电场的驱动下在电泳液中迁移。在 20V 的偏压下，已对 EPD 单元中的粒子的显示性能进行了表征。EPD 单元的反射率（491nm）和荧光强度（521nm）在 30 次开关后仍保持在恒定范围内。
