Masayuki Nishii

51.3: The Use of Transparent Conductive Polymer for Electrode Materials in Flexible Electronic Paper

Transparent conductive polymer of PEDOT/PSS has been applied to top electrodes of flexible electronic-paper display. High resolution electrode patterning of the polymer materials in a line shape has been performed by laser ablation method. An 8.4-in. diagonal and 82 dpi flexible electronic paper using quick response liquid-powder technology has been prepared by applying the patterned flexible substrates. The flexible electronic paper with PEDOT/PSS electrodes has exhibited comparable display properties to that consisting of ITO electrodes.

54.2: Direct Printed Electrodes of Transparent Conductive Polymers for Flexible Electronic Papers

Direct formation of line-shaped electrodes consisting of transparent conductive polymer of poly(3, 4-ethylene dioxythiophene) and poly(styrenesulfonate) (PEDOT/PSS) was successfully achieved onto a flexible polyethylene terephthalate (PET) substrate by using screen printing method. Improvement of the components and the viscosity of the conductive materials enabled to pattern the line electrodes in high resolution. A 4.0 in. diagonal and 88 dpi flexible electronic paper display using quick response liquid-powder technology has been prepared by applying the flexible substrate with the direct printed transparent polymer electrodes.

P-165: Novel type of Flexible and Full Color Electronic Paper Displays Using Quick-Response Liquid Powder Technology

Using electronic liquid powder™ technology, the paper displays with both functions of flexibility and full color have been developed employing two structures. One has a conventional structure with color filters made with photolithographic process and the other has a “top color filter” structure with color filter prepared by flexography printing method. These displays have almost the same image quality with a thin thickness and a good flexibility.