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Optical Film, Polarizing Plate, Surface Plate, Image Display Panel, And Image Display Device Using Said Optical Film, Method For Manufacturing Said Optical Film, Method For Selecting Optical Film, And Method For Evaluating Fingerprint Wipe Off Properties

Abstract: Provided is an optical film having excellent anti-glare properties and favorable fingerprint wipe-off properties. This optical film has a first surface, and a second surface on the side opposite to the first surface, wherein the optical film has an anti-reflection layer and an anti-glare layer in this order from the first surface to the second surface, the first surface has an uneven shape, the Sa of the first surface, which is the arithmetic mean height defined by ISO 25178-2:2012, is at least 0.05 µm, and the first surface satisfies expression 1 below. Expression 1: Sw×Vmp=2.00 [in expression 1, “Sw” is the angle of inclination (in degrees) at the first surface when 30 µl of pure water droplets flow down. In expression 1, “Vmp” is the value of the protruding peak material volume (ml/m2) of the first surface defined by ISO 25178-2:2012].

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Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
08 November 2024
Publication Number
46/2024
Publication Type
INA
Invention Field
ELECTRICAL
Status
Email
Parent Application

Applicants

DAI NIPPON PRINTING CO., LTD.
1-1-1, Ichigaya-Kagacho, Shinjuku-ku, Tokyo 1628001

Inventors

1. TSUJIMOTO Jun
c/o DAI NIPPON PRINTING CO., LTD., 1-1-1, Ichigaya-Kagacho, Shinjuku-ku, Tokyo 1628001
2. IWATA Yukimitsu
c/o DAI NIPPON PRINTING CO., LTD., 1-1-1, Ichigaya-Kagacho, Shinjuku-ku, Tokyo 1628001
3. TAKEI Michiaki
c/o DAI NIPPON PRINTING CO., LTD., 1-1-1, Ichigaya-Kagacho, Shinjuku-ku, Tokyo 1628001
4. TANAKA Masafumi
c/o DAI NIPPON PRINTING CO., LTD., 1-1-1, Ichigaya-Kagacho, Shinjuku-ku, Tokyo 1628001
5. IKEDA Keisuke
c/o DAI NIPPON PRINTING CO., LTD., 1-1-1, Ichigaya-Kagacho, Shinjuku-ku, Tokyo 1628001
6. FURUI Gen
c/o DAI NIPPON PRINTING CO., LTD., 1-1-1, Ichigaya-Kagacho, Shinjuku-ku, Tokyo 1628001

Specification

Documents

Application Documents

# Name Date
1 202447085797-STATEMENT OF UNDERTAKING (FORM 3) [08-11-2024(online)].pdf 2024-11-08
2 202447085797-REQUEST FOR EXAMINATION (FORM-18) [08-11-2024(online)].pdf 2024-11-08
3 202447085797-PROOF OF RIGHT [08-11-2024(online)].pdf 2024-11-08
4 202447085797-PRIORITY DOCUMENTS [08-11-2024(online)].pdf 2024-11-08
5 202447085797-NOTIFICATION OF INT. APPLN. NO. & FILING DATE (PCT-RO-105-PCT Pamphlet) [08-11-2024(online)].pdf 2024-11-08
6 202447085797-FORM 18 [08-11-2024(online)].pdf 2024-11-08
7 202447085797-FORM 1 [08-11-2024(online)].pdf 2024-11-08
8 202447085797-DRAWINGS [08-11-2024(online)].pdf 2024-11-08
9 202447085797-DECLARATION OF INVENTORSHIP (FORM 5) [08-11-2024(online)].pdf 2024-11-08
10 202447085797-COMPLETE SPECIFICATION [08-11-2024(online)].pdf 2024-11-08
11 202447085797-FORM-26 [11-11-2024(online)].pdf 2024-11-11
12 202447085797-FORM 3 [12-04-2025(online)].pdf 2025-04-12