公开(公告)号：US11906847B2

公开(公告)日：2024-02-20

申请号：US17950896

申请日：2022-09-22

Applicant: LMS Co., Ltd.

Inventor： Hyeonuk Park ,  Byeonghun Lee

IPC: F21V8/00 ,  G02F1/13357

CPC classification number: G02F1/133615 ,  G02B6/0023 ,  G02B6/0065 ,  G02B6/0081 ,  G02F1/133608 ,  G02F2201/56

Abstract: A backlight unit includes a light source, a color conversion sheet disposed above the light source for converting a color of light emitted from the light source, and at least one optical film is disposed over the color conversion sheet. The one optical film has a base film, a first pattern layer including first patterns on one surface of the base film, and a second pattern layer disposed on the other surface of the base film and including second patterns different from the first patterns.

公开(公告)号：US12222534B1

公开(公告)日：2025-02-11

申请号：US18650132

申请日：2024-04-30

Applicant: LMS Co., Ltd.

Inventor： Byeonghun Lee ,  Hyeonuk Park ,  Dongkyu Lee ,  Changgoo Park

IPC: F21V8/00

Abstract: Provided is an optical film comprising a first base portion; a pyramid pattern layer including a plurality of pyramid patterns formed on a first surface of the first base portion and a first side of a base of the pyramid pattern arranged in a pyramid direction; and a first prism pattern layer including a plurality of first prism patterns formed on a second surface of the first base portion and an edge of the first prism pattern arranged in a prism direction.

公开(公告)号：US12222602B2

公开(公告)日：2025-02-11

申请号：US18624064

申请日：2024-04-01

Applicant: LMS Co., Ltd.

Inventor： Hyeonuk Park ,  Byeonghun Lee ,  DongKyu Lee

IPC: G02F1/1335 ,  G02F1/13357

Abstract: An optical film according to various embodiments of the present invention may include a first sheet comprising a first base portion, a first pattern layer including a plurality of prisms and formed on a surface of the first base portion, and a second pattern layer including a plurality of pyramids and formed as intaglio on the other surface of the first base portion; and a second sheet including a second base portion; a third pattern layer including a plurality of protrusions with an adhesive property and formed as a matte pattern on a surface of the second base portion, and a fourth pattern layer including a plurality of pyramids and formed as intaglio on the other surface of the second base portion.

公开(公告)号：US12222595B2

公开(公告)日：2025-02-11

申请号：US18660323

申请日：2024-05-10

Applicant: LMS Co., Ltd.

Inventor： Hyeonuk Park ,  Byeonghun Lee ,  Dongkyu Lee

IPC: G02F1/1335 ,  G02F1/13357

Abstract: According to various embodiments of the present disclosure, an optical film comprises a first sheet including a pyramid pattern layer including a plurality of pyramid patterns and a first prism pattern layer including a plurality of first prisms patterns; a second sheet including a second prism pattern layer including a plurality of second prism patterns and a first diffusion layer; and a third sheet including a third prism pattern layer including a plurality of third prism patterns and a second diffusion layer.