Patent ID: 8717280
Filing Date: 2014-05-06
Classification: G09G

Abstract:
1. An electrophoretic display device comprising: an electrophoretic pixel to be updated within a pixel update period from an initial pixel state to an update pixel state; a first part of a memory device storing a lookup table for storing voltage waveforms corresponding to pixel updates between pixel states; a voltage driver for supplying at least one of the voltage waveforms of the lookup table across the pixel; an image controller controlling the voltage driver and comprising a second part of the memory device, the image controller arranged for receiving the update pixel state and storing said initial and update pixel state in the second part of the memory device; wherein the image controller is programmed to execute, in a consecutive drive phase, during the pixel update period, repeatedly the steps of: wherein the image controller is programmed to execute, in a single update drive phase differing from the consecutive drive phase, during the pixel update period, the steps of: