Systems and methods for improving the brightness of a transparent display using supplemental light sources that include ambient light collected by an array of diffraction gratings
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United States of America Patent
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Sep 5, 2023
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N/A
app pub date -
Nov 30, 2022
filing date -
Nov 30, 2022
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Abstract
Systems and methods for improving the brightness of a transparent display are disclosed herein. One embodiment collects ambient light using an array of diffraction gratings disposed on an external surface of a vehicle to produce filtered ambient light; collects internal light from the vehicle's headlights; filters the internal light to produce filtered internal light; generates primary-source light using a light-emitting-diode (LED) light source; and injects, into a transparent edge-lit liquid crystal waveguide display deployed in at least a portion of a window of the vehicle, the primary-source light, the filtered ambient light, and the filtered internal light in a color-synchronized manner. The filtered ambient light and the filtered internal light improve the brightness of the transparent edge-lit liquid crystal waveguide display.
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