Liquid suspending medium for electrophoretic image display/and or recording device

摘要

This invention provides a liquid suspending medium for an electrophoretic image display and/or recording device, comprising as a main component an oligomer of 1,1,2-trifluoro-2-chloro-ethylene expressed by <IMAGE> where n is 2 or 3, and each of X1 and X2 is Cl or F. The use of this oligomer facilitates gravity adjustment between the liquid suspending medium and electrophoretic particles, and results in a liquid suspending medium highly suitable for an electrophoretic image display and/or recording device.