Overview of electronic ink and methods of production for use in electronic displays

Abstract

Electrophoretic displays (EPDs) have gained great attention recently due to its low cost, low weight, low power consumption and reliability, and they are on their way to replace conventional paper. EPDs, known as non-emitting displays based on light particle suspensions, are based on the movements of charged particles in a dielectric fluid via electrode with the opposite charge. Electrical and optical properties of EPDs suspension composition depend on the electronic ink, also called as E Ink. Therefore, major factors in electrophoretic particle properties like very small particle size, narrow size distribution and high surface charge of particles, enhance the image quality for accurate image control and faster response to the applied voltage. Thus, there are numerous researches on the modification of particles, surface morphology, surface charge and their stability in media. This review summarizes the best techniques and production methods to fabricate E Ink microcapsules for EPD applications in recent years.