US 11,754,903 B1
Electro-optic assemblies and materials for use therein
Lynne A. McCullough, Medford, MA (US); and Jay William Anseth, Canton, MA (US)
Assigned to E Ink Corporation, Billerica, MA (US)
Filed by E INK CORPORATION, Billerica, MA (US)
Filed on Nov. 8, 2019, as Appl. No. 16/677,947.
Claims priority of provisional application 62/768,572, filed on Nov. 16, 2018.
Int. Cl. G02F 1/167 (2019.01); G02F 1/1675 (2019.01)
CPC G02F 1/167 (2013.01) [G02F 1/1675 (2019.01); G02F 2001/1678 (2013.01)] 19 Claims
OG exemplary drawing
1. An electro-optic medium comprising an encapsulated material and a binder, the encapsulated material being configured to switch optical states upon application of an electric field, and the binder comprising a polymer having a polymeric backbone derived from one or more polymers selected from the group consisting of polyvinyl alcohol, polyvinylpyrrolidone, polyvinyl acetate, polyacrylates, polymethacrylates, polyurethanes, polysaccharides, polyolefins, polyethers, polyesters, polypeptides, proteins, and combinations thereof and a plurality of side chains, wherein at least a portion of the side chains comprise an ionic moiety.