US 2026/0093124 A1 · LIGHT CONTROL FILM

Abstract

The present specification discloses a light control film, and a display device to which the light control film is applied. The light control film enables precise control of a light-outgoing angle, can secure high transmittance, high luminance, and excellent resolution within the light-outgoing angle, and block unnecessary light capable of causing defects such as so-called ghosts or moire, as it is applied to a display device. Even when the light control film is applied to an OLED display, the light control film exhibits the above performance, and simultaneously prevents defects, such as stripes, that can be recognized by an observer from occurring. The present specification also discloses a display device to which the light control film is applied.

Claims20

Dependent claims

A light control film comprising:

a main body having a first surface and a second surface facing the first surface, in which a plurality of grooves extending toward the second surface is formed on the first surface;
a filling material filled in the plurality of grooves, and including a light absorbing material;
and
a base film present in one or both sides of the main body, wherein
the base film has an in-plane phase difference of at least 8,000 nm for a wavelength of 550 nm.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

19/141,899Filed 21 Dec 2023

Priority

KR 10-2022-018043721 Dec 2022

Published

2 Apr 2026

Term ends

Not estimatedThe source records don’t support an estimate.

Classification15 codes

G02B 27/30
Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00: collimators
H10K 59/879
Arrangements for extracting light from the devices: comprising refractive means, e.g. lenses
F21V 9/40
Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters: with provision for controlling spectral…
G02B 5/00
Optical elements other than lenses

Light control film

Life of this patent

Light control film

Life of this patent

Abstract

Claims20