COMBINER AND HEAD-UP DISPLAY SYSTEM
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United States of America Patent
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app pub date -
Aug 18, 2017
filing date -
Feb 20, 2015
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Abstract
According to the invention, provided are a combiner including: a projected image display portion on which a projected image is displayed with projected light; and a base material; in which the projected image display portion at least includes a half-mirror film, the half-mirror film and the base material are provided in this order from an incidence side of the projected light, the half-mirror film includes two or more cholesteric liquid crystal layers, center wavelengths of selective reflection of the two or more cholesteric liquid crystal layers are different from each other, and the cholesteric liquid crystal layer closest to the incidence side of the projected light has the longest center wavelength of selective reflection, and a head-up display system including a projected image display member. The combiner makes it possible to display a projected image having high brightness, in which the generation of a double image is reduced.
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