13.3: A Novel Approach to Tiled Displays

Abstract

A novel approach to tiling is described in which an array of specially designed moulded light guides is used to form a magnified image of a standard AMLCD panel. These arrays can be tessellated to form visually uniform display surfaces of essentially unlimited size.

59.5L: Late‐News Paper: A 68‐inch SVGA 4×4 Tiled Display

“…Taking the viewing angle ITrans collar performance into account (see §3.2.2), this results in a wall plug power efficiency of 1.4Lm/W. This is a significant improvement over the previous demonstrator [1], which utilized a white LED backlight, yielding an efficiency of only 0.3Lm/W. Figure 4 shows a graph of luminance and contrast ratio as a function of viewing angle.…”

“…The new mould produces a row of light guides in which the unique lateral displacement of each element within the row is moulded into the part, avoiding the need for post-forming in the plane of the row. This has led to a marked improvement in uniformity over the previous method [1] where the elements within a row were all post-formed from straight moulded parts. The current design consists of 204 guides in a single row, having a pitch of 1.485mm at the light input end and 1.695mm at the light output end.…”

“…In a previous publication [1], we described our novel ITrans tiled display technology and a 4x3 tile 52-inch diagonal display, which was built largely by hand using a simple optical moulding and a set of jigs and fixtures to form and to assemble the moulded parts into light guide arrays. While this demonstrated the proof-ofprinciple of the technology, the means of fabrication did not provide a route for volume production and caused visible artifacts on the finished display.…”

43‐2: Development of Zero‐bezel Display Utilizing a Waveguide Image Transformation Element

“…As an alternative to the refractive optics element, a waveguide optics element was constructed by using molded optical fiber or fibers array [2,3]. The study showed impressive advance in viewing angle characteristics.…”