Abstract: The present invention provides improved driving methods for four particle electrophoretic displays that improves the performance of such displays when they are deployed in low temperature environments and the displays are required to be updated when positioned vertically (i.e., the driving electric fields are substantially perpendicular to the direction of Earth's gravity). Methods are provided for displaying each of the colors at each pixel, as desired, with minimal interference (contamination) from the other particles.

Abstract: The present invention provides four-particle electrophoretic displays with improved driving methods to achieve better color separation between adjacent pixel electrodes. The driving methods improve the color state performance when a first pixel is displaying a mixed state of a first highly-charged particle and a second lower-charged particle of the opposite polarity, while a neighboring pixel is displaying a state of a second highly-charged particle having the opposite polarity to the first highly-charged particle. The particles can be, for example, all reflective or one type of particle can be partially light transmissive.

Abstract: The disclosure related to a resin composition for molding device for dental restoration comprising 10 to 50 parts by weight of an urethane acrylate oligomer with a functionality less than 4, 20 to 40 parts by weight of morpholino-group containing acrylate monomera morpholino-group containing acrylate monomer, 10 to 40 parts by weight of a polymerizable acrylate monomer composition and 0.5 to 5 parts by weight of a photoinitiator, wherein the polymerizable acrylate monomer composition comprises 40 to 60 parts by weight of an alicyclic acrylate monomer and 40 to 60 parts by weight of ether-bond containing aliphatic acrylate monomeran ether-bond containing aliphatic acrylate monomer. The shore hardness of the resin composition after being cured of the present invention is not less than 70D and the flexural strain thereof is not less than 0.15.

Abstract: The disclosure related to a resin composition for molding device for dental restoration comprising 10 to 50 parts by weight of an urethane acrylate oligomer with a functionality less than 4, 20 to 40 parts by weight of morpholino-group containing acrylate monomera morpholino-group containing acrylate monomer, 10 to 40 parts by weight of a polymerizable acrylate monomer composition and 0.5 to 5 parts by weight of a photoinitiator, wherein the polymerizable acrylate monomer composition comprises 40 to 60 parts by weight of an alicyclic acrylate monomer and 40 to 60 parts by weight of ether-bond containing aliphatic acrylate monomeran ether-bond containing aliphatic acrylate monomer. The shore hardness of the resin composition after being cured of the present invention is not less than 70D and the flexural strain thereof is not less than 0.15.