公开(公告)号：US20190235148A1

公开(公告)日：2019-08-01

申请号：US16320270

申请日：2017-07-21

Applicant: NITTO DENKO CORPORATION

Inventor： Yuki Hasegawa ,  Ayaka Umemoto ,  Kentarou Takeda

IPC: G02B5/30 ,  H01L51/52

CPC classification number: G02B5/3083 ,  G02B5/30 ,  G02B5/3025 ,  G09F9/30 ,  H01L27/32 ,  H01L51/50 ,  H01L51/5281 ,  H05B33/02

Abstract: A polarizing plate with retardation layers of the present invention includes a polarizer, a first retardation layer, and a second retardation layer in the staled order. The polarizer and the lust retardation layer are bonded to each other via a first adhesive layer, the first retardation layer and the second retardation layer are bonded to each other via a second adhesive layer, the first retardation layer and the second retardation layer each have a thickness of 5 μm or less, and the second adhesive layer has an average refractive index of 1.55 or more, and a difference between the average refractive index of the second adhesive layer and an average refractive index of the first retardation layer, and a difference between the average refractive index of the second adhesive layer and an average refractive index of the second retardation layer are each less than 0.08.

公开(公告)号：US10036840B2

公开(公告)日：2018-07-31

申请号：US14766046

申请日：2014-01-29

Applicant: NITTO DENKO CORPORATION

Inventor： Kentarou Takeda ,  Hironori Yaginuma ,  Hiroshi Sumimura ,  Nao Murakami

IPC: G02B5/30 ,  G02B27/28 ,  H01L51/52 ,  G02F1/1335 ,  G02F1/13363

CPC classification number: G02B5/305 ,  G02B5/3025 ,  G02B5/3083 ,  G02B27/288 ,  G02F2001/133541 ,  G02F2001/133637 ,  H01L51/5281 ,  H01L2251/5338

Abstract: There is provided a circularly polarizing plate capable of realizing a bendable display apparatus in which an excellent reflection hue is obtained and a color change due to bending is suppressed. A circularly polarizing plate according to the present invention is used in a bendable display apparatus. The circularly polarizing plate includes: a polarizer; and a retardation film arranged on one side of the polarizer. In-plane retardations of the retardation film satisfy a relationship of Re(450)

公开(公告)号：US09627655B2

公开(公告)日：2017-04-18

申请号：US14417243

申请日：2013-07-04

Applicant: NITTO DENKO CORPORATION

Inventor： Hironori Yaginuma ,  Kentarou Takeda ,  Takashi Shimizu ,  Kazuki Uwada ,  Nao Murakami

IPC: H01L51/52 ,  H01L51/56 ,  H01L27/32 ,  G02B5/30 ,  H04M1/02

CPC classification number: H01L51/5293 ,  G02B5/3033 ,  G02B5/3083 ,  H01L27/32 ,  H01L27/3276 ,  H01L51/5281 ,  H01L51/56 ,  H01L2251/55 ,  H04M1/0266

Abstract: There is provided a display apparatus that can suppress the occurrence of a crack in a circularly polarizing plate in its manufacturing process without reducing designability and mass productivity. A display apparatus according to an embodiment of the present invention includes: a display element; and a circularly polarizing plate placed on a viewer side of the display element. The circularly polarizing plate includes a polarizer and a retardation film. In-plane retardations of the retardation film satisfy a relationship represented by the below-indicated expression (1); and an angle θ1 formed between a slow axis of the retardation film and a direction in which a wiring crimping portion provided along at least one side of a peripheral edge portion of the display element extends satisfies a relationship represented by the below-indicated expression (2): Re(450)

公开(公告)号：US20170052300A1

公开(公告)日：2017-02-23

申请号：US15307688

申请日：2015-04-28

Applicant: NITTO DENKO CORPORATION

Inventor： Kentarou Takeda ,  Hironori Yaginuma ,  Kazuki Uwada ,  Tadashi Kojima ,  Nao Murakami

IPC: G02B5/30 ,  H01L51/52

CPC classification number: G02B5/3083 ,  B32B7/03 ,  B32B7/06 ,  B32B7/12 ,  B32B27/00 ,  B32B27/08 ,  B32B27/286 ,  B32B27/302 ,  B32B27/306 ,  B32B27/308 ,  B32B27/325 ,  B32B27/36 ,  B32B27/365 ,  B32B2250/05 ,  B32B2307/418 ,  B32B2307/42 ,  B32B2307/514 ,  B32B2457/206 ,  G02B5/30 ,  G02B5/305 ,  H01L51/5281 ,  H05B33/12

Abstract: There is provided a circularly polarizing plate for an organic EL display apparatus that is excellent in productivity, is prevented from warping, and can achieve an excellent tint. An elongated circularly polarizing plate for an organic EL display apparatus according to an embodiment of the present invention includes in the following order: an elongated polarizer having an absorption axis in a longitudinal direction thereof; an elongated first retardation layer functioning as a λ/2 plate; and an elongated second retardation layer functioning as a λ/4 plate. An angle formed between the absorption axis of the elongated polarizer and a slow axis of the elongated first retardation layer is front 15° to 30°; and the absorption axis of the elongated polarizer and a slow axis of the elongated second retardation layer are substantially perpendicular to each other.

Abstract translation: 提供了一种生产率优异，防止翘曲的有机EL显示装置的圆偏振片，并且可以实现优异的色调。 根据本发明实施例的用于有机EL显示装置的细长圆形偏光板按以下顺序包括：沿纵向方向具有吸收轴的细长偏振片; 用作λ/ 2板的细长的第一延迟层; 以及用作λ/ 4板的细长的第二延迟层。 在细长偏振器的吸收轴与细长的第一延迟层的慢轴之间形成的角度为15°至30°的前方; 并且细长偏振器的吸收轴和细长的第二延迟层的慢轴基本上彼此垂直。

公开(公告)号：US20160221507A1

公开(公告)日：2016-08-04

申请号：US15011839

申请日：2016-02-01

Applicant: NITTO DENKO CORPORATION

Inventor： Katsunori Takada ,  Kentarou Takeda ,  Tadatoshi Nakanishi ,  Tadayuki Kameyama ,  Hiroki Kuramoto

IPC: B60R1/12 ,  G02F1/1335 ,  G02F1/31 ,  G02F1/13363 ,  G02B27/14 ,  G02F1/137

CPC classification number: B60R1/12 ,  B60R2001/1215 ,  G02B27/144 ,  G02F1/133528 ,  G02F1/13363 ,  G02F1/1347 ,  G02F1/137 ,  G02F1/31 ,  G02F2001/133557 ,  G02F2001/133638

Abstract: Provided is an image display mirror that includes a half mirror and an image display apparatus, reduces an influence of a reflected image provided by the half mirror, and is excellent in visibility of an image displayed on the image display apparatus. The image display mirror for a vehicle includes: a first polarizing plate; a first liquid crystal cell; a half mirror; and an image display apparatus in the stated order from a viewer side, in which in the first liquid crystal cell, a state in which a polarization direction of incident linearly polarized light is maintained and a state in which the incident linearly polarized light is transformed into circularly polarized light are switched in accordance with a voltage to be supplied.

Abstract translation: 提供了一种包括半反射镜和图像显示装置的图像显示镜，减少了由半反射镜提供的反射图像的影响，并且在图像显示装置上显示的图像的可视性优异。 车辆的图像显示镜包括：第一偏振片; 第一液晶单元; 一半镜子 以及从观察者侧的所述顺序的图像显示装置，其中在第一液晶单元中保持入射的线偏振光的偏振方向和入射的线偏振光转换为的状态 圆偏振光根据要供给的电压而被切换。

公开(公告)号：US09383493B2

公开(公告)日：2016-07-05

申请号：US14739680

申请日：2015-06-15

Applicant: NITTO DENKO CORPORATION

Inventor： Minoru Miyatake ,  Kentarou Takeda

IPC: G02F1/1335 ,  G02B5/30 ,  B29D11/00 ,  G02F1/13363

CPC classification number: G02B5/3033 ,  B29D11/00644 ,  B29D11/0073 ,  G02B5/3016 ,  G02B5/305 ,  G02F1/133528 ,  G02F1/133536 ,  G02F1/13362 ,  G02F1/13363 ,  G02F2001/133531 ,  G02F2001/133545 ,  G02F2202/04 ,  Y10T156/10

Abstract: The invention relates a long laminated polarizing plate (PL) comprising at least one reflective linear polarizer (Pr) having a transmission axis parallel to the longitudinal direction of the film, and at least one absorptive polarizer (Pa) having a transmission axis parallel to the longitudinal direction. In this long laminated polarizing plate (PL), the reflective linear polarizer (Pr) and the absorptive polarizer (Pa) are arranged such that their transmission axes are parallel to each other. The long laminated polarizing plate of the invention is excellent in productivity and is applicable to a large-sized liquid crystal display.

公开(公告)号：US09164213B2

公开(公告)日：2015-10-20

申请号：US14390907

申请日：2013-06-18

Applicant: NITTO DENKO CORPORATION

Inventor： Hironori Yaginuma ,  Takashi Shimizu ,  Kazuki Uwada ,  Nao Murakami ,  Tadashi Kojima ,  Kentarou Takeda

IPC: G02B5/30 ,  H01L51/52 ,  C08G64/06

CPC classification number: G02B5/3083 ,  C08G64/06 ,  G02B1/04 ,  G02B5/3016 ,  G02B5/3025 ,  H01L51/5281 ,  H01L51/5293 ,  C08L69/00

Abstract: Provided is a polarizing plate that has an excellent viewing angle characteristic and suppresses changes in display characteristics. A polarizing plate of the present invention is used in an organic EL panel, and includes a polarizer (10), a first retardation layer (30), and a second retardation layer (40). The first retardation layer (30) shows a refractive index characteristic of nx>ny≧nz, satisfies a relationship of Re(450) nx≧ny. A laminate of the first retardation layer (30) and the second retardation layer (40) has an Re(550) of from 120 nm to 160 nm and an Rth(550) of from 40 nm to 100 nm.

Abstract translation: 提供了具有优异的视角特性并抑制显示特性变化的偏振片。 本发明的偏振片用于有机EL面板，具有偏振片（10），第一延迟层（30）和第二延迟层（40）。 第一延迟层（30）表示nx>ny≥nz的折射率特性，满足Re（450）nx≥ny的折射率特性。 第一延迟层（30）和第二延迟层（40）的层叠体的Re（550）为120nm〜160nm，Rth（550）为40nm〜100nm。

公开(公告)号：US20150277009A1

公开(公告)日：2015-10-01

申请号：US14739680

申请日：2015-06-15

Applicant: NITTO DENKO CORPORATION

Inventor： Minoru Miyatake ,  Kentarou Takeda

IPC: G02B5/30 ,  G02F1/1335

CPC classification number: G02B5/3033 ,  B29D11/00644 ,  B29D11/0073 ,  G02B5/3016 ,  G02B5/305 ,  G02F1/133528 ,  G02F1/133536 ,  G02F1/13362 ,  G02F1/13363 ,  G02F2001/133531 ,  G02F2001/133545 ,  G02F2202/04 ,  Y10T156/10

Abstract: The invention relates a long laminated polarizing plate (PL) comprising at least one reflective linear polarizer (Pr) having a transmission axis parallel to the longitudinal direction of the film, and at least one absorptive polarizer (Pa) having a transmission axis parallel to the longitudinal direction. In this long laminated polarizing plate (PL), the reflective linear polarizer (Pr) and the absorptive polarizer (Pa) are arranged such that their transmission axes are parallel to each other. The long laminated polarizing plate of the invention is excellent in productivity and is applicable to a large-sized liquid crystal display.

Abstract translation: 本发明涉及一种长层压偏振片（PL），其包括具有平行于膜的纵向方向的透射轴的至少一个反射线性偏振器（Pr）和至少一个具有平行于膜的透射轴的吸收性偏振器（Pa） 纵向。 在该长层叠偏光板（PL）中，反射型线偏振片（Pr）和吸收型偏振片（Pa）的布置使得它们的透射轴彼此平行。 本发明的长层叠偏光板的生产率优异，适用于大型液晶显示装置。

公开(公告)号：US20150168624A1

公开(公告)日：2015-06-18

申请号：US14390907

申请日：2013-06-18

Applicant: NITTO DENKO CORPORATION

Inventor： Hironori Yaginuma ,  Takashi Shimizu ,  Kazuki Uwada ,  Nao Murakami ,  Tadashi Kojima ,  Kentarou Takeda

IPC: G02B5/30 ,  C08G64/06 ,  H01L51/52

CPC classification number: G02B5/3083 ,  C08G64/06 ,  G02B1/04 ,  G02B5/3016 ,  G02B5/3025 ,  H01L51/5281 ,  H01L51/5293 ,  C08L69/00

Abstract: Provided is a polarizing plate that has an excellent viewing angle characteristic and suppresses changes in display characteristics. A polarizing plate of the present invention is used in an organic EL panel, and includes a polarizer (10), a first retardation layer (30), and a second retardation layer (40). The first retardation layer (30) shows a refractive index characteristic of nx>ny≧nz, satisfies a relationship of Re(450) nx≧ny. A laminate of the first retardation layer (30) and the second retardation layer (40) has an Re(550) of from 120 nm to 160 nm and an Rth(550) of from 40 nm to 100 nm.

Abstract translation: 提供了具有优异的视角特性并抑制显示特性变化的偏振片。 本发明的偏振片用于有机EL面板，具有偏振片（10），第一延迟层（30）和第二延迟层（40）。 第一延迟层（30）表示nx>ny≥nz的折射率特性，满足Re（450）nx≥ny的折射率特性。 第一延迟层（30）和第二延迟层（40）的层叠体的Re（550）为120nm〜160nm，Rth（550）为40nm〜100nm。