Display device

摘要

Disclosed is an image generator with several pixels, from which light bundles are emitted for generating an image, a control unit for controlling the image generator and an imaging optical system which comprises a light guiding element with a front side and a rear side, which light guiding element has an input grating formed on the front or rear side and an output grating formed on the front or rear side. The light bundles are input into the light guiding element by means of diffraction at the input grating, guided in the light guiding element by means of total internal reflection up to the output grating and output by means of diffraction at the output grating such that a user can perceive the generated image.

主权项

1. A Display device, comprising:
an image generator including several pixels, from which light bundles are emitted for generating an image; a control unit for controlling the image generator; and an imaging optical system, including a light guiding element with a front side and a rear side, the light guiding element including an input grating formed on one of the front and rear sides, and an output grating formed on the opposing one of the front and rear sides, wherein the light bundles are input into the light guiding element by means of diffraction at the input grating, guided in the light guiding element by means of total internal reflection up to the output grating and output by diffraction at the output grating such that a user perceives the generated image, wherein at least one of the front side and the rear side is curved, and the imaging optical system is configured such that the light bundles strike the output grating at most n times depending on the position of the associated pixel, wherein n is an integer greater than or equal to three, and wherein the light bundles are output depending on the position of the associated pixel at 1 to m successive strikes on the output grating, wherein m is an integer greater than or equal to one and is smaller than n and the outputting begins, at the latest, at the (n−m+1)th strike.