Optical element, light guide element, and ar display device

Abstract

Provided are an optical element including a single-layer cholesteric liquid crystal layer capable of reflecting red, green, and blue light components, and a light guide element and an AR display device each including the optical element. The optical element includes a cholesteric liquid crystal layer containing a polymer of a polymerizable liquid crystal compound and a chiral agent. The cholesteric liquid crystal layer includes, within a plane, a first reflective region having a reflectance peak that falls within a wavelength range of 400 to 550 nm, and a second reflective region having a reflectance peak that is different from the reflectance peak of the first reflective region and falls within a wavelength range of 550 to 700 nm. The cholesteric liquid crystal layer has a smaller thickness in the first reflective region than in the second reflective region.

Dependencies are inferred from the claim text.