Patent ID: 8564505
Filing Date: 2013-10-22
Classification: G09G

Abstract:
1. A method of driving an electroluminescent display using multi-line addressing (MLA) to display an image using a plurality of temporal sub-frames, the method comprising: inputting image data defining said image; determining, from said image data, data defining a plurality of said temporal sub-frames, said sub-frames combining, when displayed successively, to give an impression of said image; data for said sub-frame comprising a first set of drive values and second set of drive values for driving respective first and second axes of said display, wherein said first axis comprises a row axis comprising a plurality of rows of said display and said second axis comprises a column axis comprising a plurality of columns of said display, and wherein said sub-frame has an associated sub-frame display time, wherein said time is a duration; driving a plurality of columns of said display using said second set of drive values at the same time as driving a plurality of rows of said display using said first set of drive values; determining said sub-frame display time for said displayed sub-frame responsive to one or more of said drive values for the sub-frame; and driving said display using multiline address to successively display each of said temporal sub-frames for respective said sub-frame display times including said determined sub-frame time, to approximate display of said image data, wherein said displaying a first said temporal sub-frame comprises driving a pixel of said display and said displaying a second said temporal sub-frame comprises driving said pixel, the method further comprising inputting image data defining a target matrix corresponding to said image; and factorising said target matrix to determine first and second factor matrices respectively defining said first and second sets of drive values for said plurality of sub-frames.