COLORED ELECTROPHORETIC DISPLAYS

• Main Authors: MACDONALD BRANDON, TELFER STEPHEN, LATTES ANA L, BULL STEPHEN, SLOMINSKI LUKE M, MILLER DAVID DARRELL, BARYKINA TASSA OLGA VLADIMIROVNA, YEZEK LEE, HERB CRAIG, MORRISON JENNIFER M, HOOGEBOOM CHRISTOPHER L, LADAVAC KOSTA
• Format: Patent
• Language: English; Korean
• Published: 07.02.2018
• Subjects: DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

전기영동 매질은 유체, 제 1, 광산란성 입자 (1) (통상적으로는 백색) 및 3 개의 감법 원색들 (통상적으로는 마젠타, 시안 및 황색) 을 갖는 제 2 (2), 제 3 (3) 및 제 4 (4) 입자들을 포함한다; 이들 착색 입자들 (2 내지 4) 중 적어도 2 개는 비-광산란성이다. 제 1 (1) 및 제 2 (2) 입자들은, 제 3 (3) 및 제 4 (4) 입자들에 의해 형성된 응집체를 분리시키는데 요구되는 전계가, 임의의 다른 2 개의 타입들의 입자들로부터 형성된 응집체를 분리시키는데 요구되는 전계보다 더 크도록 하는 폴리머 코팅들을 포함한다. 백색, 흑색, 마젠타, 시안, 황색, 적색, 녹색 및 청색 컬러들을 생성하기 위해 매질을 드라이빙하는 방법들이 또한 설명된다. An electrophoretic medium comprises a fluid, a first, light scattering particle (1) (typically white) and second (2), third (3) and fourth (4) particles having three subtractive primary colors (typically magenta, cyan and yellow); at least two of these colored particles (2-4) being non-light scattering. The first (1) and second (2) particles bear polymer coatings such that the electric field required to separate an aggregate formed by the third (3) and the fourth (4) particles is greater than that required to separate an aggregate formed from any other two types of particles. Methods for driving the medium to produce white, black, magenta, cyan, yellow, red, green and blue colors are also described.