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US 10,802,308 B2Granted
Roll to roll fabrication apparatus
AssigneeLG Display Co., Ltd.
InventorsKyuhwang Lee, Yunho Kook, Chulho Kim
Life of this patent
Estimating the term…
Abstract
A roll to roll fabrication apparatus includes an injection plate for injecting a chemical treatment liquid on a film transferred from a supplying roll to a collecting roll; and liquid blocking rolls disposed between the supplying roll and the collecting roll, and configured to prevent the chemical treatment liquid injected from the injection plate from being introduced to another process region.
Claims11
A roll to roll fabrication apparatus, comprising:
- a supplying roll and a collecting roll configured to transfer a film therebetween;
- an injection plate above a transfer path of the film, which is configured to inject a chemical treatment liquid on a first portion of a top surface of the film positioned within a corresponding process region;
- liquid blocking rolls at boundaries of the corresponding process region and over the top surface of the film, the liquid blocking rolls configured to prevent the chemical treatment liquid injected on the first portion of the top surface of the film from flowing to a second portion of the top surface of the film that is positioned outside the corresponding process region, outer surfaces of the liquid blocking rolls being outside the boundaries of the corresponding process region;
- air curtains at the boundaries of the corresponding process region, which is configured to inject air onto lower parts of the outer surfaces of the liquid blocking rolls via the outer surfaces of the liquid blocking rolls, each of the air curtains being positioned outside the respective liquid blocking rolls and spaced apart from the respective liquid blocking rolls;
- and
- shielding members at the boundaries of the corresponding process region, the shielding members being positioned on and at least partially overlapping the liquid blocking rolls,
- wherein the liquid blocking rolls are arranged between the air curtains and the corresponding process region such that the liquid blocking rolls prevent the air provided from the air curtains from being directly injected onto the chemical treatment liquid inside the corresponding process region, and
- wherein the liquid blocking rolls are positioned between the shielding members and the air curtains.
5 more elements
Dependencies are inferred from the claim text.