20.1: Microcup® Active and Passive Matrix Electrophoretic Displays by Roll‐to‐Roll Manufacturing Processes

Abstract

Rolls of flexible electrophoretic panels have been prepared by the SiPix roll‐to‐roll manufacturing process based on novel Microcup® and top‐sealing technologies. The resultant Microcup® passive matrix electrophoretic displays (PMEPDs) and a‐Si TFT active matrix electrophoretic displays (AMEPDs) have shown outstanding contrast ratio, switching rate, image bistability, threshold characteristics, grayscale capability, operation temperature latitude, and physicomechanical properties.

Evaluation of Electrophoretic Migration of Submicron Particles in a Microgap by Optical and Current Responses

“…[4][5][6] These applications use movements of the charged particles in the electrophoretic inks by applying an electric field. Recently, electric papers 7) using the electrophoretic displays have been rapidly gaining market share in electric books, because a paperlike reflective display mode of the electrophoretic displays is comfortable to read and power consumption is greatly lowered by keeping images without applied voltage.…”

Digital lithography for large-area electronics on flexible substrates

“…Reflective displays based on electrophoretic inks are promising for flexible displays with paper-like visual appearance [17][18][19][20][21]. Flexibility is desirable for ruggedness and for conformal or roll-up displays in addition to reducing processing cost and complexity in a roll-to-roll process.…”

Printed Electronics

“…This makes it potentially very compatible with printed transistors, and, indeed, there are several companies currently working on developing printed displays based on electrophoretic cells. 7,8 While the cell itself is not printed, the intended application, i.e., as an electronic paper or e-book with low speed, relatively low resolution images and text, makes it a very strong candidate for initial application of printed electronics. In all three display technologies above, there are two separate considerations with regard to printing.…”