Importance

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Abstract

A moving particle display device comprises an array of rows and columns of display pixels (41,42,43,44), a plurality of row address lines (Row1,Row2;72; 112), each row address line for addressing a respective row of pixels and a plurality of column address lines (Col1,Col2;76; 108), each for providing pixel data to a respective column of pixels. A plurality of discharge column lines (82) is provided. A pixel is addressed by addressing a row of pixels and providing data to the pixels in the addressed row using the column address lines (Col1,Col2;76; 108). A charge flow from a column address line to an addressed pixel in the column flows to a respective discharge column line (82). By having discharge lines in the column direction, when a row of pixels is addressed, a current flow through the pixel, which is used to load data into the pixel from a column address line, passes to a column discharge line. In this way, the column discharge line only carries a current flow associated with a small number of pixels from the row. This enables the width of the discharge lines to be kept to a minimum, and it also enables the number of pixels in a row to be scaled without requiring the discharge line to carry an increased current.

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First Claim