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US 2021/0240012 A1Published application
Transmittance-Variable Device
AssigneeLG Chem, Ltd.
InventorsEun Jung Lim, Sergey Belyaev, Min Jun Gim, Dong Hyun Oh, Jung Sun You, Nam Gyu Kim, Jin Hong Kim, Hyun Jun Lee
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Abstract
A transmittance-variable device is provided in the present application. The present application provides a transmittance-variable device, which can be applied to various applications without causing problems such as a crosstalk phenomenon, a rainbow phenomenon or a mirroring phenomenon, while having excellent transmittance-variable characteristics.
Claims15
A transmittance-variable device, comprising:
- a retardation film having in-plane retardation of 5,000 nm or more for light having a wavelength of 550 nm;
- a liquid crystal alignment film;
- and
- a transmittance-variable layer configured to generate a polarization component,
- wherein the retardation film, the liquid crystal alignment film and the transmittance-variable layer are comprised in the above order, and wherein a smallest angle among angles between a slow axis of the retardation film and an alignment direction of the liquid crystal alignment film is in a range of 0 degrees to 70 degrees.
2 more elements
Dependencies are inferred from the claim text.