A display module comprising: a plurality of light-emitting elements and supporting electronics coupled to one or more mounting structures ; wherein the plurality of light-emitting elements are grouped into a plurality of pixels each comprising a grouping of one or more of the plurality of light-emitting elements, the pixels arranged in a pixel array on a display face to display one or more of textual, graphical, or video information; and a face cover mounted to the one or more mounting structures and positioned in front of at least a portion of the display face, the face cover being characterised by : a plurality of raised moguls arranged in a mogul array, wherein each raised mogul is a structure formed in the face cover and positioned in front of and proximate to a corresponding one of the plurality of pixels so that the raised mogul covers at least a portion of the corresponding one of the plurality of pixels and so that each of the plurality of light-emitting elements of the corresponding one of the plurality of pixels is recessed from a front surface of the raised mogul; and a set of one or more light-emitting openings in each raised mogul , each light-emitting opening positioned relative to a corresponding one or more of the light-emitting elements to permit light emitted from the corresponding one or more of the light-emitting elements to pass through the raised mogul. a plurality of light-emitting elements and supporting electronics coupled to one or more mounting structures ; wherein the plurality of light-emitting elements are grouped into a plurality of pixels each comprising a grouping of one or more of the plurality of light-emitting elements, the pixels arranged in a pixel array on a display face to display one or more of textual, graphical, or video information; and a face cover mounted to the one or more mounting structures and positioned in front of at least a portion of the display face, the face cover being characterised by : a plurality of raised moguls arranged in a mogul array, wherein each raised mogul is a structure formed in the face cover and positioned in front of and proximate to a corresponding one of the plurality of pixels so that the raised mogul covers at least a portion of the corresponding one of the plurality of pixels and so that each of the plurality of light-emitting elements of the corresponding one of the plurality of pixels is recessed from a front surface of the raised mogul; and a set of one or more light-emitting openings in each raised mogul , each light-emitting opening positioned relative to a corresponding one or more of the light-emitting elements to permit light emitted from the corresponding one or more of the light-emitting elements to pass through the raised mogul. a plurality of raised moguls arranged in a mogul array, wherein each raised mogul is a structure formed in the face cover and positioned in front of and proximate to a corresponding one of the plurality of pixels so that the raised mogul covers at least a portion of the corresponding one of the plurality of pixels and so that each of the plurality of light-emitting elements of the corresponding one of the plurality of pixels is recessed from a front surface of the raised mogul; and a set of one or more light-emitting openings in each raised mogul , each light-emitting opening positioned relative to a corresponding one or more of the light-emitting elements to permit light emitted from the corresponding one or more of the light-emitting elements to pass through the raised mogul. <EOS>