1. A tileable display panel, comprising: a screen layer upon which a unified image is projected from a backside; an illumination layer to generate lamp light; and a display layer disposed between the screen layer and the lamp layer, the display layer including a plurality of pixelets separated from each other by spacing regions, wherein each of the pixelets is positioned to be illuminated by the lamp light from the illumination layer and to project a magnified image sub-portion onto the backside of the screen layer such that the magnified image sub-portions collectively blend together to form the unified image which covers the spacing regions on the display layer, wherein each of the pixelets includes an array of transmissive pixels comprising: core pixels each having a common size and having a first separation pitch that is constant; and peripheral pixels surrounding the core pixels on two or more sides which provide a higher image resolution in overlap regions on the screen layer when the magnified image sub-portions projected from adjacent pixelets overlap on the screen layer.