Patent ID: 8830562

Claim:
A method of manufacturing a multi-color electrophoretic display (EPD) device, the method comprising: forming capsules comprising photosensitive color-developing capsule shells each of which stores a dielectric fluid and at least one type of electrophoretic particles dispersed in the dielectric fluid; disposing the capsules in a unit color pixel area on a substrate; exposing the capsules to light to form a latent image of a color pattern image on the capsules; and developing the photosensitive color-developing capsule shells of the capsules to form unit color pixels comprising color capsules, wherein the each photosensitive color-developing capsule shell comprises a first photosensitive color developing layer, a second photosensitive color developing layer, and a third photosensitive color developing layer, and wherein at least one of the first photosensitive color developing layer, the second photosensitive color developing layer, and the third photosensitive color developing layer is color-developed.