Flexible active-matrix electronic ink display U ltrathin, flexible electronic displays that look like print on paper are of great interest 1-4 for application in wearable computer screens, electronic newspapers and smart identity cards. Here we realize the fabrication of such a display on a bendable active-matrix-array sheet. The display is less than 0.3 mm thick, has high pixel density (160 pixels ǂ240 pixels) and resolution (96 pixels per inch), and can be bent to a radius of curvature of 1.5 cm

Chiral tris[/3-diketonato]europium(III) chelates 1-14 have been synthesized and tested for their effectiveness in inducing chemical shifts ( ) between corresponding resonances of enantiomeric organic substances.Judged by the dual criteria of generality of application as reagents for determining enantiomeric composition and ease of preparation, the most useful of these chiral shift reagents are tris[d,i/-dicampholylmethanato]europium(III)(1, Eu(dcm)3), tris[3-trifluoroacetyl-i/-nopinonato]europium(III) (9), and tris[3-trifluoroacetyW-camphorato]europium(III) (10). Compound 1, Eu(dcm)3, is the most effective reagent for the resolution of enantiotopic resonances; reagents 9 and 10 are considerably less effective, but are more easily prepared. It is not presently possible to predict in any detail the influence of a particular chiral shift reagent on a mixture of enantiomers, and achieving useful resolution between the signals of enantiotopic protons in complex, polyfunctional structures may require testing several chiral shift reagents, and varying sample concentrations and temperature. Chiral shift reagents are applicable in principle to the determination of enantiomeric composition of most "hard" organic bases; they are not effective with most "soft" bases, with acids, or with certain chelating agents. Conditions for use of these

Full color electrophoretic displays utilizing colored particles, no color filter array, and a single TFT array backplane have been demonstrated for the first time. A full color gamut including all eight primary colors has been achieved with a single layer of electrophoretic fluid addressed with voltages compatible with commercially demonstrated TFT backplanes. Displays have been made with incorporation of the electrophoretic fluid into both Microcup® and microcapsule structures.

A scalable manufacturing process for fabricating active-matrix backplanes on low-cost flexible substrates, a key enabler for electronic-paper displays, is presented. This process is based on solution processing, ink-jet printing, and laser patterning. A multilayer architecture is employed to enable high aperture ratio and array performance. These backplanes were combined with E Ink electrophoretic media to create high-performance displays that have high contrast, are bistable, and can be flexed repeatedly to a radius of curvature of 5 mm

Full color displays rendering any color and white at any pixel location have previously been demonstrated using E Ink's ACeP technology. The update time has now been improved to less than 1 second for color, and a high‐speed black and white mode has been developed. Even faster color modes are available for animation and pen writing. The improvements are made possible by improved electrophoretic compositions and novel TFT backplane architecture.