Invention Application
- Patent Title: AUTOMOTIVE HEAD UP DISPLAY
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Application No.: US15063850Application Date: 2016-03-08
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Publication No.: US20170261746A1Publication Date: 2017-09-14
- Inventor: Ka Ho TAM , David James MONTGOMERY
- Applicant: Sharp Kabushiki Kaisha
- Main IPC: G02B27/01
- IPC: G02B27/01 ; H04N13/00 ; H04N13/04 ; G09G3/00 ; G06T19/00

Abstract:
A head-up-display (HUD) system includes at least one scanning laser projector operative to generate laser light, and a stacked array of multiple-switchable screens arranged relative to the projector to receive laser light generated by the projector, each screen of the stacked array of multiple-switchable screens spaced apart from one another and operative to switch between a transparent state and a diffusive state. A controller is operatively coupled to the stacked array of multiple-switchable screens, the controller configured to time sequentially switch each screen of the array from a transparent state to a diffusive state, wherein only one screen is switched to the diffusive state at any given time. An output of the projector is arranged at an angle or a distance from imaging optics succeeding the array of screens to prevent a specular beam emitted by the at least one scanning laser projector from intercepting the imaging optics succeeding the array of screens when all screens are in the transparent state.
Public/Granted literature
- US09946070B2 Automotive head up display Public/Granted day:2018-04-17
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