Electrophoretic Display Device

• Main Authors: KEUM DONG KI, KIM BYOUNGIN, LEE JIN
• Format: Patent
• Language: English; Korean
• Published: 14.09.2022
• 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

An electrophoretic display device includes: a lower substrate; an upper substrate spaced apart from the lower substrate; an intermediate membrane coupled between the lower substrate and the upper substrate; and an electrophoretic dispersion which is embedded between the upper and lower substrates and has charged particles which selectively migrate to either the lower substrate or the upper substrate while passing through a middle membrane. Therefore, when implementing the same contrast ratio, driving speed can be increased by reducing the number of charged particles. 전기영동 표시장치는 하부 기판, 하부 기판과 이격 결합하는 상부 기판, 하부 기판과 상부 기판의 사이에 결합하는 중간 멤브레인, 그리고 상부 기판과 하부 기판의 사이에 내장되어 중간 멤브레인을 통과하면서 하부 기판 또는 상부 기판으로 선택적으로 이동하는 대전 입자를 갖는 전기영동 분산액을 포함한다.