公开(公告)号：US20250044635A1

公开(公告)日：2025-02-06

申请号：US18717369

申请日：2023-04-25

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Jun TSUJIMOTO ,  Gen FURUI ,  Yukimitsu IWATA ,  Shigeki MURAKAMI ,  Takumi YONEYAMA ,  Mitsuhiro KUZUHARA

IPC: G02F1/1335

Abstract: Provided is an optical film which has high anti-glare properties, enables a suppress of a reduction in jet-black appearance by reflected scattered light, and has favorable scratch resistance. An optical film having a surface with depressions and projections, wherein the surface with depressions and projections has a peak material volume Vmp of 0.010 ml/m2 or more and 0.050 ml/m2 or less specified in ISO 25178-2:2012, and a minimum autocorrelation length Sal of 4.0 μm or more and 12.0 μm or less specified in ISO 25178-2:2012.

公开(公告)号：US20240411055A1

公开(公告)日：2024-12-12

申请号：US18701546

申请日：2022-10-27

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Mitsuhiro KUZUHARA ,  Yukimitsu IWATA ,  Jun TSUJIMOTO ,  Shigeki MURAKAMI ,  Gen FURUI

IPC: G02B1/111 ,  G02B5/30

Abstract: Provided is an anti-glare film excellent in anti-glare properties and scratch resistance and capable of suppressing reflected scattered light. An anti-glare film including an anti-glare layer, the anti-glare film having an uneven surface, wherein for an amplitude spectrum of elevation of the uneven surface, when a sum of amplitudes corresponding to spatial frequencies of 0.005 μm−1, 0.010 μm−1, and 0.015 μm−1 is defined as AM1 and an amplitude at a spatial frequency of 0.300 μm−1 is defined as AM2, AM1 is more than 0.4000 μm and 1.0000 μm or less, and AM2 is 0.0050 μm or more and 0.0500 μm or less.

公开(公告)号：US20240027357A1

公开(公告)日：2024-01-25

申请号：US18247570

申请日：2020-11-24

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Makio KURASHIGE ,  Gen FURUI ,  Kazutoshi ISHIDA ,  Hiroko SUZUKI ,  Masayuki TSUNEKAWA ,  Yukimitsu IWATA ,  Norinaga NAKAMURA ,  Shumpei NISHIO

IPC: G01N21/84

CPC classification number: G01N21/8422 ,  G01N2021/8427 ,  G01N2021/9513

Abstract: A sparkle contrast correcting method includes a step of acquiring a first sparkle contrast that is caused by an anti-glare layer that is disposed on a surface of an electronic display and information that represents a first measurement condition, the first sparkle contrast being used as a comparison standard and being measured in the first measurement condition by using a first imaging lens that images emitted light from the anti-glare layer and a first two-dimensional image sensor on which the emitted light is imaged, a step of acquiring a second sparkle contrast that is caused by the anti-glare layer and information that represents a second measurement condition, the second sparkle contrast being used as a comparison target and being measured in the second measurement condition that differs from the first measurement condition by using a second imaging lens that images emitted light from the anti-glare layer and a second two-dimensional image sensor on which the emitted light is imaged, and a step of correcting the second sparkle contrast, based on a ratio between the first measurement condition and the second measurement condition for comparison with the first sparkle contrast.

公开(公告)号：US20160245955A1

公开(公告)日：2016-08-25

申请号：US15143911

申请日：2016-05-02

Applicant: Dai Nippon Printing Co., Ltd.

Inventor： Junya EGUCHI ,  Teppei SOTODA ,  Shoichiro OGUMI ,  Kousuke MATSUYAMA ,  Gen FURUI

IPC: G02B1/118 ,  G02B1/111 ,  G02F1/1335 ,  G02B5/30

CPC classification number: G02B1/118 ,  B32B7/02 ,  B32B2307/412 ,  B32B2307/42 ,  G02B1/111 ,  G02B5/0294 ,  G02B5/3033 ,  G02B5/305 ,  G02F1/133502

Abstract: An antiglare film, including: a light transmissive substrate; and an antiglare layer that is disposed on a light transmissive substrate and includes a concavo-convex surface, wherein a surface of the antiglare film is a concavo-convex surface; the antiglare film has a total haze value of 0% or more and 5% or less; the antiglare film has an internal haze value of 0% or more and 5% or less; and assuming that a transmission image sharpness of the antiglare film, measured using an optical comb with a width of 0.125 mm, is C (0.125), and that a transmission image sharpness of the antiglare film, measured using an optical comb with a width of 0.25 mm, is C (0.25), an expression (1) and an expression (2) described below are satisfied: C(0.25)−C(0.125)≧2%  (1); and C(0.125)≧65%  (2).

Abstract translation: 防眩膜，包括：透光基材; 以及防眩光层，其设置在透光性基板上并且包括凹凸表面，其中防眩光膜的表面是凹凸表面; 防眩膜的总雾度值为0％以上且5％以下; 防眩膜的内部雾度值为0％以上且5％以下; 并且假设使用宽度为0.125mm的光梳测量的防眩光膜的透射图像清晰度为C（0.125），并且使用宽度为20nm的光梳测量的防眩光膜的透射图像清晰度 0.25mm，为C（0.25），满足下述式（1）和式（2）：C（0.25）-C（0.125）≥2％（1）; C（0.125）≥65％（2）。

公开(公告)号：US20250155605A1

公开(公告)日：2025-05-15

申请号：US19022618

申请日：2025-01-15

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Jun TSUJIMOTO ,  Yukimitsu IWATA ,  Michiaki TAKEI ,  Masafumi TANAKA ,  Keisuke IKEDA ,  Gen FURUI

IPC: G02B1/11 ,  G02B1/111 ,  G02B1/18 ,  G02B5/02 ,  G02B5/30

Abstract: An optical film having high anti-glare properties and favorable fingerprints wiping off properties is provided. The optical film has a first surface, and a second surface which is a surface opposite to the first surface, wherein the optical film comprises an anti-reflection layer and an anti-glare layer in this order from the first surface to the second surface, the first surface has a profile of depressions and projections, the first surface has an arithmetic mean height Sa of 0.05 μm or more specified in ISO 25178-2:2012, and the first surface satisfies the relation represented by the following Expression 1: Sw×Vmp≤2.00 (Expression 1) wherein “Sw” represents a tilt angle (degrees) of 30 μl pure water droplet flowing down on the first surface; and “Vmp” represents a value of a peak material volume (ml/m2) of the first surface specified in ISO 25178-2:2012.

公开(公告)号：US20240427058A1

公开(公告)日：2024-12-26

申请号：US18716827

申请日：2023-04-25

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Jun TSUJIMOTO ,  Gen FURUI ,  Shigeki MURAKAMI ,  Yukimitsu IWATA ,  Takumi YONEYAMA ,  Mitsuhiro KUZUHARA

IPC: G02B1/111

Abstract: Provided is an optical film which has high anti-glare properties and high scratch resistance and enables a suppression in reflected scattered light. An optical film having a surface with depressions and projections, wherein the surface with depressions and projections has a developed interfacial area ratio Sdr of 0.010 or more and 0.060 or less specified in ISO 25178-2:2012, and a minimum autocorrelation length Sa1 of 4.0 μm or more and 12.0 μm or less specified in ISO 25178-2:2012.

公开(公告)号：US20240418911A1

公开(公告)日：2024-12-19

申请号：US18717368

申请日：2023-04-25

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Jun TSUJIMOTO ,  Gen FURUI ,  Yukimitsu IWATA ,  Shigeki MURAKAMI ,  Takumi YONEYAMA ,  Mitsuhiro KUZUHARA

IPC: G02B5/02

Abstract: Provided is an optical film which has high anti-glare properties, enables a suppress of a reduction in jet-black appearance by reflected scattered light, and has favorable scratch resistance. An optical film having a surface with depressions and projections, wherein the surface with depressions and projections has a reduced peak height Spk of 0.20 μm or more and 1.00 μm or less specified in ISO 25178-2:2012, and a minimum autocorrelation length Sal of 4.0 μm or more and 12.0 μm or less specified in ISO 25178.

公开(公告)号：US20220367832A1

公开(公告)日：2022-11-17

申请号：US17762306

申请日：2020-09-28

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Atsuhiro KOBAYASHI ,  Yousuke KOUSAKA ,  Takayuki FUKUDA ,  Kazuya HONDA ,  Kana YAMAMOTO ,  Yoshimasa OGAWA ,  Jun SATO ,  Gen FURUI ,  Keisuke YAMADA ,  Saori KAWAGUCHI

IPC: H01L51/52 ,  H05K5/03 ,  B32B7/022 ,  B32B7/12 ,  B32B27/08 ,  B32B27/28 ,  B32B27/30 ,  B32B27/36 ,  B32B27/40 ,  B32B17/10

Abstract: The present disclosure provides a front panel for a display device comprising a substrate layer, an A layer, an impact absorbing layer, and a B layer, in this order, wherein a shear storage elastic modulus of the A layer and the B layer, at frequency of 950 Hz and temperature of 23° C., is 20 MPa or less, and in the impact absorbing layer, a tensile storage elastic modulus at frequency of 950 Hz and temperature of 23° C. is 200 MPa or more and 5000 MPa or less, and a glass transition temperature is 50° C. or more.

公开(公告)号：US20210173512A1

公开(公告)日：2021-06-10

申请号：US16483339

申请日：2018-02-05

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Shubou TAYA ,  Tomohiro OGAWA ,  Yosuke TAKAYAMA ,  Jun TSUJIMOTO ,  Gen FURUI

IPC: G06F3/041 ,  G06F3/0354

Abstract: Provided is a method for selecting a touch panel pen writing member that enhances the efficiency for product design and quality management of writing members. A method for selecting a touch panel pen writing member, in which a writing member satisfying the following requirement A1-1 is selected as the touch panel pen writing member: A touch panel pen is secured in a state of being in contact with the surface of the touch panel pen writing member at an angle of 60 degrees, then while a vertical load of 100 gf is kept applied to the touch panel pen and while the touch panel pen writing member is moved 40 mm in one direction at a speed of 14 mm/second, the kinetic friction force in the movement direction given to the touch panel pen is measured at intervals of 0.001 seconds, and an average of the kinetic friction forces obtained every 0.001 second is calculated. Furthermore, after the movement of 40 mm in one direction of the touch panel pen writing member is completed, the vertical load of 100 gf applied to the touch panel pen is maintained, the touch panel pen is kept in the state of being in contact with the surface of the touch panel pen writing member at an angle of 60 degrees. In this state, the residual friction force in the movement direction given to the touch panel pen is measured at intervals of 0.001 seconds, and an average of residual friction forces obtained every 0.001 second is calculated. The average of the kinetic friction force and the average of the residual friction force satisfy a relationship “0.45