Multi-view pixel directional backlight module and naked-eye 3D display device

摘要

A multi-view pixel directional backlight module and an autostereoscopic 3D display device, wherein the multi-view pixel directional backlight module includes at least two rectangular light guide plates stacked in close proximity to each other. The light exit surface is provided with a plurality of pixels having different directivities formed by nanometer diffraction gratings, and each rectangular light guide plate is provided with a light source installed at least on one side edge. After the light from the light source enters the corresponding light guide plate, the emitted light appears in each pixel of the plurality of pixel rows on the light exit surface of the light guide plate. By overlapping multiple layers of light guide plates, the problem of interference between three light sources in one light guide plate is addressed, and the pixel-oriented rectangular light guide plate has a multi-view function and directivity. The present invention enables industrial application to the naked-eye 3D display technology, and responds to problems that have not been solved in the prior art.