公开(公告)号：US20230266510A1

公开(公告)日：2023-08-24

申请号：US18111171

申请日：2023-02-17

Applicant: LINTEC CORPORATION

Inventor： Hiroki FUKUSHIMA ,  Tatsuki KURAMOTO ,  Baku KATAGIRI ,  Kentaro KUSAMA

IPC: G02B5/02 ,  G02B5/00

CPC classification number: G02B5/0236 ,  G02B5/003 ,  B32B7/12 ,  B32B2250/40

Abstract: A laminate used under an environment irradiated with external light includes a light diffusion control film having an internal structure in the film. The internal structure includes a plurality of regions having a relatively high refractive index in a region having a relatively low refractive index. The laminate further includes an ultraviolet absorbing layer located further on the external light incident side than the light diffusion control film. The light diffusion control film contains a weakly basic hindered amine-based compound having a carbonate skeleton.

公开(公告)号：US20230417959A1

公开(公告)日：2023-12-28

申请号：US18127733

申请日：2023-03-29

Applicant: LINTEC CORPORATION

Inventor： Tatsuki KURAMOTO ,  Hiroki FUKUSHIMA ,  Baku KATAGIRI ,  Kentaro KUSAMA

IPC: G02B5/02

CPC classification number: G02B5/0236

Abstract: A viewing angle control film having an incident light diffusion angle region, wherein when the viewing angle control film is installed vertically to a ground surface, the incident light diffusion angle region in an up-down direction does not include a front face 0° in a horizontal direction with respect to the ground surface, and a total luminous transmittance at the front face 0° is 85% or more and 100% or less. The viewing angle control film preferably has a louver-shaped internal structure including a plurality of regions having a relatively high refractive index (plate-like high refractive index regions) in a region having a relatively low refractive index (low refractive index region).