Manufacturing method of optical film and optical film
AssigneeLG Chem, Ltd.
InventorsBeom Seok Lee, Suk Jae Lee, Kyung Hyeok Park, San Park, Hang Suk Choi, Eung Jin Jang, Bong Su Jeung, Jea Han Ryoo
Life of this patent
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Abstract
Provided is a method for an optical film which elongates by forming a plurality of sheet pieces by cutting a pre-processing optical film in a width direction of the pre-processing optical film, aligning the plurality of sheet pieces in such a manner that first end portions parallel to the longitudinal direction of the pre-processing optical film are opposite to each other, and connecting end portions of the plurality of sheet pieces to each other.
Claims9
A method for manufacturing an optical film, comprising:
- forming a plurality of sheet pieces by cutting a pre-processing optical film in which a release film, an adhesive layer, an optical member, and a surface protection film are sequentially stacked in a width direction of the pre-processing optical film;
- aligning the plurality of sheet pieces in such a manner that first end portions parallel to a longitudinal direction of the pre-processing optical film are opposite to each other, wherein each of the sheet pieces has a first end portion and a second end portion, which are orthogonal to each other;
- and
- connecting the first end portions of the plurality of sheet pieces, which are opposite to each other, by attaching a first connection member,
- wherein, when an adhesive force between the first connection member and the release film of each sheet piece is represented by A, and an adhesive force between the release film of each sheet piece and the adhesive layer is represented by B, A is larger than B,
- wherein an elongated post-processing optical film is manufactured.
A method for manufacturing an optical film, comprising:
- forming a plurality of sheet pieces by cutting a pre-processing optical film in which a release film, an adhesive layer, an optical member, and a surface protection film are sequentially stacked in a width direction of the pre-processing optical film;
- aligning the plurality of sheet pieces in such a manner that first end portions parallel to a longitudinal direction of the pre-processing optical film are opposite to each other, wherein each of the sheet pieces has a first end portion and a second end portion, which are orthogonal to each other;
- and
- connecting the first end portions of the plurality of sheet pieces, which are opposite to each other,
- wherein in the connecting, each release film on two adjacent sheet pieces are connected to each other by using a first connection member, and the surface protection film on each of two adjacent sheet pieces are connected to each other by using a second connection member,
- wherein an elongated post-processing optical film is manufactured.
Dependencies are inferred from the claim text.