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Title:
CONVEYANCE DEVICE FOR CONVEYING ELONGATE OPTICAL FILM HAVING CUT, AND CONTINUOUS MANUFACTURING SYSTEM OF OPTICAL DISPLAY PANELS
Document Type and Number:
WIPO Patent Application WO/2019/135299
Kind Code:
A1
Abstract:
The purpose of the present invention is to prevent the curling of an optical film in which cuts are formed in cases when the optical film is being conveyed by a conveyance device having rollers and a cut is being passed over a roller when conveyance is stopped. This conveyance device, for conveying an elongate optical film that has cuts is provided with: a conveyance direction changing roller over which the optical film is passed within a prescribed angle range, with a release film on the inside; a cover which is arranged at a prescribed distance from the conveyance direction changing roller with the optical film interposed therebetween, and which has a surface conforming to the curved surface of the conveyance direction changing roller; a cover drive unit which moves the cover towards the conveyance direction changing roller; and a cover drive control unit 48 which, during conveyance of the optical film, causes the cover to wait at a prescribed distance, and, when conveyance of the optical film has stopped, causes the cover to move towards the conveyance direction changing roller and to contact the portion of the optical film passing over the conveyance direction changing roller.

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Inventors:
TSUTSUMI KIYOTAKA (JP)
AKIYAMA KOJI (JP)
UNEME NOBUHISA (JP)
NAKAMURA NORIHIRO (JP)
USUI MASATAKE (JP)
Application Number:
PCT/JP2018/033390
Publication Date:
July 11, 2019
Filing Date:
September 10, 2018
Export Citation:
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Assignee:
NITTO DENKO CORP (JP)
International Classes:
G09F9/00; B65H23/26; G02F1/13; G02F1/1335
Domestic Patent References:
WO2009072495A12009-06-11
Foreign References:
JP2009186996A2009-08-20
JP2013165024A2013-08-22
JPH05216132A1993-08-27
JP2013008003A2013-01-10
JP2016224430A2016-12-28
JP2015048172A2015-03-16
Attorney, Agent or Firm:
UNIUS PATENT ATTORNEYS OFFICE (JP)
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