AERIAL DISPLAY DEVICE
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United States of America Patent
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Issued Date -
Sep 5, 2024
app pub date -
Dec 10, 2021
filing date -
Mar 12, 2021
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Abstract
An aerial display device of an embodiment includes a planar light-emitting body, a retroreflective sheet, and a half mirror. The planar light-emitting body includes a light-emitting portion. The retroreflective sheet is disposed at an emission surface side of the planar light-emitting body, and includes, at a position corresponding to the light-emitting portion, a plurality of through-holes representing a figure to be displayed in the air. The half mirror is disposed at an emission surface side of the retroreflective sheet.
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