Patent ID: 8248362
Filing Date: 2012-08-21
Classification: G02F

Abstract:
1. A method of manufacturing an electrophoretic display comprising a cathode layer and a back layer, one of said layers having a plurality of substantially vertical walls thereon, said walls defining corresponding cells and being electrically isolated from the cathode layer, the method comprising the steps of: applying a first voltage to a selected one of the cathode layer and the back layer, said voltage having a polarity with respect to a reference base value; coating a selected layer of said display with a set of charged particles, the charged particles being attracted to the selected layer by said applied first voltage; joining said cathode layer and back layer to form a cavity therebetween, said layers being held apart by spacers, wherein said cavity has a spacing larger than the length of said walls extending from one of said layers, wherein a gap is formed between the walls and an inner surface of the other layer; sealing the cavity about its perimeter; evacuating said cavity; and filing said evacuated cavity with a clear, substantially particle free, fluid, while applying said first voltage to said selected one of the cathode layer and the back layer, said fluid being distributed throughout said cavity through said gap.