Section writing method for volumetric 3D displays

Abstract

This invention describes a data writing method for improving resolution of volumetric 3D display based on a rotating display screen or a rotating display panel. The method separates the active display area of an SLM (or a rotating display panel) into a number of sections. When displayed, each section corresponds to a different volumetric zone in the display space. The display space thereby has a number of zones. The portion of a volumetric 3D image within each zone will therefore be formed by images frames projected from a corresponding section. The image frames from a section is thereby called section frames. The locations of zones are arranged according to their distances with respect to the axis of rotation of the display plane. Inner zones are closer to the axis and outer zones are farther away from the axis. The method writes data to the sections one section at a time in a repetitive and periodical sequence. The images in the sections are displayed in a corresponding sequence, which is also repetitive and periodical. The writing sequence writes more often to the outer sections and less often to the inner sections. Therefore, more section frames are distributed to the outer zones and less section frames are distributed to inner zones. As a result, the distance between adjacent section frames can be maintained roughly even in the display space, regardless of the distance to the axis of rotation of the display plane.

Dependencies are inferred from the claim text.