Title:
OPTICAL ADHESIVE SHEET WITH RELEASE LINER
Document Type and Number:
Japanese Patent JP2023128155
Kind Code:
A
Abstract:
To provide an optical adhesive sheet with a release liner suitable for securing release stability of the release liner from a large-sized optical adhesive sheet.SOLUTION: An optical adhesive sheet X with a release liner includes an optical adhesive sheet 10 and a release liner (20). The release liner 20 is in releasable contact with a first surface 11 of the optical adhesive sheet 10. The optical adhesive sheet 10 has a maximum length of 408.57 mm or more in plan view. The release liner 20 has an extended end portion 20A. The extended end portion 20A extends outward from a sheet end surface 13 of the optical adhesive sheet 10 in a surface direction D perpendicular to a thickness direction H. The release liner 20 has a half-cut groove 21 having a depth in the thickness direction H along the sheet end surface 13 of the optical adhesive sheet 10. The standard deviation σ of the depth of the half-cut groove 21 is 10 μm or less.SELECTED DRAWING: Figure 1
Inventors:
DOGE SORA
TAKEDA SATORU
YAMAMOTO SHINYA
TSUTSUMI KIYOTAKA
TAKEDA SATORU
YAMAMOTO SHINYA
TSUTSUMI KIYOTAKA
Application Number:
JP2022032304A
Publication Date:
September 14, 2023
Filing Date:
March 03, 2022
Export Citation:
Assignee:
NITTO DENKO CORP
International Classes:
C09J7/38; C09J7/40; C09J201/00
Attorney, Agent or Firm:
Hiroyuki Okamoto
Shinichi Uda
Shinichi Uda
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