Driving an electrophoresis display using an AC common voltage

• Main Authors: SUNG WOO SHIN, JEONG UK PARK
• Format: Patent
• Language: English
• Published: 18.06.2008
• Subjects: ADVERTISING; ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION; CRYPTOGRAPHY; 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; DISPLAY; EDUCATION; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; SEALS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

An electrophoresis display for decreasing a drive voltage and a driving method thereof are disclosed. An electrophoresis display includes: an electrophoresis display panel 14 having a plurality of data lines and a plurality of gate lines that cross each other and a plurality of cells 16 that are driven in accordance with a voltage applied to a pixel electrode and a common electrode; a data driver circuit 12 that converts digital data into a data voltage and supplies the data voltage to the data lines: a gate driver circuit that supplies a scan pulse to the gate lines; a common voltage generation circuit 15 that supplies an AC common voltage to the common electrode 18 with a polarity that is inverted each frame period for at least two frame periods; and a timing controller 11 that controls the data driving circuit, the gate driving circuit, and the common voltage generation circuit and that supplies the digital data to the data driving circuit.