Patent ID: 7189496
Filing Date: 2007-03-13
Classification: G02F,G03F,H01L

Abstract:
1. A method of manufacture of an active matrix including an active zone including a set of cells arranged in an array of rows and columns, said method comprising: depositing a layer of a material and making a pattern on the layer by a mask transferred plural times to the active zone, to make successive exposure fields covering a totality of the active zone, wherein a same mask is used for the whole active zone except for an outer periphery of the active zone; wherein an overlapping method is applied providing a non-null overlap zone between two successive exposure fields, each exposure giving a part of the patterns to the overlap zone, wherein in two successive exposures, for the overlap zone, apart from end zones of the overlap zone, corresponding to corner zones of the mask, the pattern on the layer is completed, a matrix being organized according to a structure of pixels P each cell of the matrix being associated with a filter color, according to a structure such that each row of the matrix comprises an equivalent number of cells per filter color, wherein the distribution of the patterns given by an exposure step in an overlap zone is such that, on each row of the overlap zone, there is an equivalent number of patterns provided in each color filter.