A display for providing an image to an eye of a viewer, the display comprising: (a) at least two projector assemblies, each projector assembly comprising: (i) a light-guide optical element (28, 28a, 28b) having a pair of parallel external surfaces, and (ii) an image projector arrangement (20, 20a, 20b1, 20b2, 24, 26, 34, 36, 38, 40) generating a partial image via collimating optics (12a, 12b, 12c), the image projector arrangement (20, 20a, 20b1, 20b2, 24, 26, 34, 36, 38, 40) being deployed to introduce the partial image from the image projector arrangement (20, 20a, 20b1, 20b2, 24, 26, 34, 36, 38, 40) into the LOE (28, 28a, 28b) so as to propagate within the LOE (28, 28a, 28b) by internal reflection from said pair of parallel external surfaces, each projector assembly including a coupling-out arrangement (7a, 7b1, 7b2) associated with the LOE (28, 28a, 28b) and configured for coupling out the partial image from the LOE (28, 28a, 28b) towards the eye of the viewer, wherein the LOE of a first of said projector assemblies is deployed in overlapping relation with the LOE of a second of said projector assemblies such that the first projector assembly projects a first partial image corresponding to a first part of the image, and the second projector assembly projects a second partial image corresponding to a second part of the image, said first and second part of the image having partial overlap so that the at least two projector assemblies cooperate to display the image to the eye of the viewer; and (b) a controller comprising at least one processor, said controller being associated with said image projector arrangement (20, 20a, 20b1, 20b2, 24, 26, 34, 36, 38, 40) of at least said first and second projector assemblies, and characterised in that the controller being configured to reduce a pixel intensity of selected pixels projected by at least one of said first and second image projector arrangements (20, 20a, 20b1, 20b2, 24, 26, 34, 36, 38, 40), said selected pixels being in a region of said partial overlap between said first and second part of the image so as to enhance a perceived uniformity of the image, wherein said controller varies the selection of a subset of said set of common pixels responsively to an overlap region adjustment input. (a) at least two projector assemblies, each projector assembly comprising: (i) a light-guide optical element (28, 28a, 28b) having a pair of parallel external surfaces, and (ii) an image projector arrangement (20, 20a, 20b1, 20b2, 24, 26, 34, 36, 38, 40) generating a partial image via collimating optics (12a, 12b, 12c), the image projector arrangement (20, 20a, 20b1, 20b2, 24, 26, 34, 36, 38, 40) being deployed to introduce the partial image from the image projector arrangement (20, 20a, 20b1, 20b2, 24, 26, 34, 36, 38, 40) into the LOE (28, 28a, 28b) so as to propagate within the LOE (28, 28a, 28b) by internal reflection from said pair of parallel external surfaces, each projector assembly including a coupling-out arrangement (7a, 7b1, 7b2) associated with the LOE (28, 28a, 28b) and configured for coupling out the partial image from the LOE (28, 28a, 28b) towards the eye of the viewer, wherein the LOE of a first of said projector assemblies is deployed in overlapping relation with the LOE of a second of said projector assemblies such that the first projector assembly projects a first partial image corresponding to a first part of the image, and the second projector assembly projects a second partial image corresponding to a second part of the image, said first and second part of the image having partial overlap so that the at least two projector assemblies cooperate to display the image to the eye of the viewer; and (i) a light-guide optical element (28, 28a, 28b) having a pair of parallel external surfaces, and (ii) an image projector arrangement (20, 20a, 20b1, 20b2, 24, 26, 34, 36, 38, 40) generating a partial image via collimating optics (12a, 12b, 12c), the image projector arrangement (20, 20a, 20b1, 20b2, 24, 26, 34, 36, 38, 40) being deployed to introduce the partial image from the image projector arrangement (20, 20a, 20b1, 20b2, 24, 26, 34, 36, 38, 40) into the LOE (28, 28a, 28b) so as to propagate within the LOE (28, 28a, 28b) by internal reflection from said pair of parallel external surfaces, each projector assembly including a coupling-out arrangement (7a, 7b1, 7b2) associated with the LOE (28, 28a, 28b) and configured for coupling out the partial image from the LOE (28, 28a, 28b) towards the eye of the viewer, (b) a controller comprising at least one processor, said controller being associated with said image projector arrangement (20, 20a, 20b1, 20b2, 24, 26, 34, 36, 38, 40) of at least said first and second projector assemblies, and characterised in that the controller being configured to reduce a pixel intensity of selected pixels projected by at least one of said first and second image projector arrangements (20, 20a, 20b1, 20b2, 24, 26, 34, 36, 38, 40), said selected pixels being in a region of said partial overlap between said first and second part of the image so as to enhance a perceived uniformity of the image, wherein said controller varies the selection of a subset of said set of common pixels responsively to an overlap region adjustment input.