We propose an achromatic polarization correction method based on two half-wave plates to suppress ghost images in head-up displays. Based on the results a ghost image free colour HUD is demonstrated with 13° x 30° FOV.
We propose a novel flat panel-based head-up display (HUD) to realize a large viewing angle automotive display. The proposed flat-panel geometry is straightforward to integrate into the dashboard. We also provide a flat-panel compatible solution to eliminate the ghost image and stray-light in large field of view using space-variant polarization sheets and optimized directional filtering, respectively. The proposed system provides an image area that is about 14 times larger compared to commercial HUD, and the P-polarized virtual image is also viewable with polarized sunglasses. The virtual image distance in our experimental system is closer than in commercial HUD.
We propose a novel type of head-up displays with larger field of view and smaller volume compared to conventional systems. The new flat panel system with 13° x 30° field of view is applicable as an augmented reality display with motion parallax.
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