Filled large-format imprinting method

A method of making a filled large-format imprinted structure, comprising:

• providing a substrate;
• locating a curable layer over the substrate, imprinting the curable layer, and curing the curable layer to form a cured layer including a layer surface having one or more areas, each area having a plurality of imprinted micro-cavities, wherein each micro-cavity has a micro-cavity width less than or equal to 20 microns and a rib separating each micro-cavity from an adjacent micro-cavity by a rib width that is less than the micro-cavity width, the rib extending from a bottom of the micro-cavity to the layer surface;
• locating a common curable material in each micro-cavity and curing the curable material to form common cured material in each micro-cavity, thereby defining a filled large-format imprinted structure, wherein the cured material is a color filter;
• providing a display having a pixel;
• and
• locating the display beneath the substrate with the cured material in the plurality of micro-cavities located at least partly above the pixel;
• wherein the rib width is less than or equal to one tenth of the micro-cavity widths of the adjacent micro-cavities that the rib separates.