公开(公告)号：US20180364542A1

公开(公告)日：2018-12-20

申请号：US16008180

申请日：2018-06-14

Applicant: E INK CORPORATION

Inventor： Peter Carsten Bailey WIDGER ,  Jay William ANSETH ,  Richard J. PAOLINI, JR. ,  Mark Benjamin ROMANOWSKY ,  Jillian SMITH ,  Stephen J. TELFER ,  Craig Alan BREEN ,  Stephen BULL

IPC: G02F1/167 ,  G09G3/34 ,  C09B67/08

Abstract: A variable transmission film may include an electrophoretic medium having a plurality of capsules and a binder, each capsule containing a plurality of electrically charged particles and a fluid, the charged particles being movable by application of an electric field and being capable of being switched between an open state and a closed state. The film may include at least one of a binder containing fish gelatin and a polyanion; a binder containing one or more tinting agents; capsules containing charge control agents, such as an oligoamine-terminated polyolefin and a branched chain fatty acid comprising at least 8 carbon atoms; a selection of capsules in which at least 60% have a diameter between 50 μm and 90 μm and at least 15% have a diameter between 20 μm and 49 μm; a tinted adhesive layer; and a fluid selected from one or more nonconjugated olefinic hydrocarbons.

公开(公告)号：US20200272017A1

公开(公告)日：2020-08-27

申请号：US16776042

申请日：2020-01-29

Applicant: E INK CORPORATION

Inventor： Jin-Gyu PARK ,  Richard J. PAOLINI, JR. ,  Peter Carsten Bailey WIDGER ,  Jillian SMITH ,  Jay William ANSETH ,  Craig A. HERB ,  George G. HARRIS ,  Mark Benjamin ROMANOWSKY

IPC: G02F1/167 ,  G02F1/1676 ,  G02F1/16757 ,  C08L33/12 ,  C08K3/04 ,  G02F1/1681

Abstract: An electro-optic media includes either a plurality of microcapsules in a binder, a polymeric sheet containing sealed microcells, or droplets in a continuous polymeric phase. Each of the microcapsules, microcells, or droplets contain a dispersion that includes a plurality of charged composite particles and a suspending fluid, and the charged particles move through the suspending fluid under the influence of an electric field. The composite particles include one or more types of pigment particles that are at least partially coated with a polymeric material. Each of the binder, polymeric sheet, continuous polymeric phase, the charged composite particles, and the suspending fluid have an index of refraction, and a difference between the index of refraction of the composite particles and at least one of the binder, polymeric sheet, continuous polymeric phase, and solvent is less than or equal to 0.05 at 550 nm.

公开(公告)号：US20230360614A1

公开(公告)日：2023-11-09

申请号：US18223647

申请日：2023-07-19

Applicant: E INK CORPORATION

Inventor： Peter Carsten Bailey WIDGER ,  Jay William ANSETH ,  Richard J. PAOLINI, JR. ,  Mark Benjamin ROMANOWSKY ,  Jillian SMITH ,  Stephen J. TELFER ,  Craig Alan BREEN ,  Stephen BULL

IPC: G09G3/34 ,  G02F1/167 ,  C09B67/08 ,  G02F1/1676 ,  G02F1/16757 ,  G02F1/1677 ,  G02F1/1675

CPC classification number: G09G3/344 ,  G02F1/167 ,  C09B67/0013 ,  G02F1/1676 ,  G02F1/16757 ,  G02F1/1677 ,  G02F1/1675 ,  B82Y30/00

Abstract: A variable transmission film may include an electrophoretic medium having a plurality of capsules and a binder, each capsule containing a plurality of electrically charged particles and a fluid, the charged particles being movable by application of an electric field and being capable of being switched between an open state and a closed state. The film may include at least one of a binder containing fish gelatin and a polyanion; a binder containing one or more tinting agents; capsules containing charge control agents, such as an oligoamine-terminated polyolefin and a branched chain fatty acid comprising at least 8 carbon atoms; a selection of capsules in which at least 60% have a diameter between 50 μm and 90 μm and at least 15% have a diameter between 20 μm and 49 μm; a tinted adhesive layer; and a fluid selected from one or more nonconjugated olefinic hydrocarbons.

公开(公告)号：US20230148203A1

公开(公告)日：2023-05-11

申请号：US18092747

申请日：2023-01-03

Applicant: E INK CORPORATION

Inventor： Jin-Gyu PARK ,  Richard J. PAOLINI, Jr. ,  Peter Carsten Bailey WIDGER ,  Jillian SMITH ,  Jay William ANSETH ,  Craig A. HERB ,  George G. HARRIS ,  Mark Benjamin ROMANOWSKY

IPC: G02F1/167 ,  G02F1/1676 ,  G02F1/16757 ,  C08L33/12 ,  G02F1/1681 ,  C08K3/04

CPC classification number: G02F1/167 ,  G02F1/1676 ,  G02F1/16757 ,  C08L33/12 ,  G02F1/1681 ,  C08K3/04 ,  G02F2001/1678

Abstract: An electro-optic media includes either a plurality of microcapsules in a binder, a polymeric sheet containing sealed microcells, or droplets in a continuous polymeric phase. Each of the microcapsules, microcells, or droplets contain a dispersion that includes a plurality of charged composite particles and a suspending fluid, and the charged particles move through the suspending fluid under the influence of an electric field. The composite particles include one or more types of pigment particles that are at least partially coated with a polymeric material. Each of the binder, polymeric sheet, continuous polymeric phase, the charged composite particles, and the suspending fluid have an index of refraction, and a difference between the index of refraction of the composite particles and at least one of the binder, polymeric sheet, continuous polymeric phase, and solvent is less than or equal to 0.05 at 550 nm.

公开(公告)号：US20210002488A1

公开(公告)日：2021-01-07

申请号：US17023687

申请日：2020-09-17

Applicant: E INK CORPORATION

Inventor： Peter Carsten Bailey WIDGER ,  Jay William ANSETH ,  Richard J. PAOLINI, JR. ,  Mark Benjamin ROMANOWSKY ,  Jillian SMITH ,  Stephen J. TELFER ,  Craig Alan BREEN ,  Stephen BULL

IPC: C09B67/08 ,  G02F1/167 ,  G09G3/34 ,  G02F1/1677 ,  G02F1/16757 ,  G02F1/1676 ,  B82Y30/00 ,  G02F1/1675

Abstract: A variable transmission film may include an electrophoretic medium having a plurality of capsules and a binder, each capsule containing a plurality of electrically charged particles and a fluid, the charged particles being movable by application of an electric field and being capable of being switched between an open state and a closed state. The film may include at least one of a binder containing fish gelatin and a polyanion; a binder containing one or more tinting agents; capsules containing charge control agents, such as an oligoamine-terminated polyolefin and a branched chain fatty acid comprising at least 8 carbon atoms; a selection of capsules in which at least 60% have a diameter between 50 μm and 90 μm and at least 15% have a diameter between 20 μm and 49 μm; a tinted adhesive layer; and a fluid selected from one or more nonconjugated olefinic hydrocarbons.