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    • 1. 发明授权
    • Complex birefringent medium, polarizing plate, and liquid crystal device
    • 复合双折射介质,偏振片和液晶装置
    • US07999893B2
    • 2011-08-16
    • US12300682
    • 2007-06-01
    • Akira SakaiTakayuki NatsumeMasahiro HasegawaKazuhiko TsudaNobuaki Yamada
    • Akira SakaiTakayuki NatsumeMasahiro HasegawaKazuhiko TsudaNobuaki Yamada
    • G02F1/13363
    • G02B5/3016G02F1/13363G02F1/133634G02F2001/133637G02F2413/10
    • The present invention provides a complex birefringent medium, which has the so-called inverse wavelength dispersibility, that is, a wavelength dispersibility capable of giving an optimum phase difference to a light of a wide visible wavelength range, has a wide viewing angle, can be produced by a convenient method and is excellent in a degree of adjusting freedom of inverse wavelength dispersibility and in mass productivity, a polarizing plate and a liquid crystal display device. The complex birefringent medium of the present invention is a complex birefringent medium having a structure in which a plurality of birefringent layers are laminated, wherein in the complex birefringent medium, a phase difference exhibits inverse wavelength dispersibility as the whole of the complex birefringent medium, and wherein when a principal refractive index having the maximum absolute value of a difference from an average value of three principal refractive indexes at a wavelength λ (nm) is designated as a first principal refractive index n1(λ), a normal line of the birefringent layer and a principal axis corresponding to the first principal refractive index n1(550) of the birefringent layer are in the same plane.
    • 本发明提供了一种复数双折射介质,其具有所谓的反向波长分散性,即能够对宽可见光波长范围的光赋予最佳相位差的波长分散性,具有宽视角, 通过方便的方法制造,并且具有优异的反波长分散性和批量生产率的自由度,偏振片和液晶显示装置。 本发明的复合双折射介质是具有层叠多个双折射层的结构的复合双折射介质,其中在复合双折射介质中,作为复数双折射介质的整体,相位差呈现反波长分散性, 其中当将具有与波长λ(nm)处的三个主折射率的平均值的差的最大绝对值的主折射率指定为第一主折射率n1(λ)时,双折射层的法线 并且与双折射层的第一主折射率n1(550)对应的主轴在同一平面内。
    • 2. 发明申请
    • COMPLEX BIREFRINGENT MEDIUM, POLARIZING AGENT, AND LIQUID CRYSTAL DEVICE
    • 复合双相介质,极化剂和液晶装置
    • US20090096970A1
    • 2009-04-16
    • US12300682
    • 2007-06-01
    • Akira SakaiTakayuki NatsumeMasahiro HasegawaKazuhiko TsudaNobuaki Yamada
    • Akira SakaiTakayuki NatsumeMasahiro HasegawaKazuhiko TsudaNobuaki Yamada
    • G02F1/13363G02B5/30
    • G02B5/3016G02F1/13363G02F1/133634G02F2001/133637G02F2413/10
    • The present invention provides a complex birefringent medium, which has the so-called inverse wavelength dispersibility, that is, a wavelength dispersibility capable of giving an optimum phase difference to a light of a wide visible wavelength range, has a wide viewing angle, can be produced by a convenient method and is excellent in a degree of adjusting freedom of inverse wavelength dispersibility and in mass productivity, a polarizing plate and a liquid crystal display device. The complex birefringent medium of the present invention is a complex birefringent medium having a structure in which a plurality of birefringent layers are laminated, wherein in the complex birefringent medium, a phase difference exhibits inverse wavelength dispersibility as the whole of the complex birefringent medium, and wherein when a principal refractive index having the maximum absolute value of a difference from an average value of three principal refractive indexes at a wavelength λ (nm) is designated as a first principal refractive index n1(λ), a normal line of the birefringent layer and a principal axis corresponding to the first principal refractive index n1(550) of the birefringent layer are in the same plane.
    • 本发明提供了一种复数双折射介质,其具有所谓的反向波长分散性,即能够对宽可见光波长范围的光赋予最佳相位差的波长分散性,具有宽视角, 通过方便的方法制造,并且具有优异的反波长分散性和批量生产率的自由度,偏振片和液晶显示装置。 本发明的复合双折射介质是具有层叠多个双折射层的结构的复合双折射介质,其中在复合双折射介质中,作为复数双折射介质的整体,相位差呈现反波长分散性, 其中当将具有与波长λ(nm)处的三个主折射率的平均值的差的最大绝对值的主折射率指定为第一主折射率n1(λ)时,双折射层的法线 并且与双折射层的第一主折射率n1(550)对应的主轴在同一平面内。
    • 3. 发明申请
    • LIQUID CRYSTAL DISPLAY DEVICE
    • 液晶显示装置
    • US20110090433A1
    • 2011-04-21
    • US12999136
    • 2009-04-07
    • Kazuyoshi SakuragiNobuaki YamadaKazuhiko TsudaAkira Sakai
    • Kazuyoshi SakuragiNobuaki YamadaKazuhiko TsudaAkira Sakai
    • G02F1/1335
    • G02F1/1396G02F2001/133531G02F2001/1398G02F2413/12
    • A TN liquid crystal display device (1) includes a polarizing plate (4a), a liquid crystal panel (100), and a polarizing plate (4b) in an order from a viewer side, in which absorption axes (4α and 4β) of the polarizing plates (4a and 4b) are set to be at an angle of approximately 45 degrees to respective rubbing directions (6a and 6b) of a first substrate (2a) and a second substrate (2b), and the absorption axes (4α and 4β) are arranged so as to be perpendicular to each other. Further, for example, a biaxial phase plate (5a) is provided at least between the substrate (2a) and the polarizing plate (4a) so that an in-plane slow axis (5α) is set to be at an angle of approximately 90 degrees to the absorption axis (4α) of the polarizing plate (4a). This configuration makes it possible to realize, at a low cost, a technique to concurrently improve (i) a viewing angle display characteristic and (ii) use efficiency of material members of the TN display liquid crystal display device.
    • TN液晶显示装置(1)包括偏振片(4a),液晶面板(100)和偏振片(4b),其中吸收轴(4α和4&bgr) 的偏振片(4a和4b)设定成与第一基板(2a)和第二基板(2b)的各摩擦方向(6a和6b)大约45度的角度,吸收轴(4α 和4& bgr)布置成彼此垂直。 此外,例如,至少在基板(2a)和偏振片(4a)之间设置双轴相板(5a),使得面内慢轴(5α)设定为约90°的角度 相对于偏振板(4a)的吸收轴(4α)。 通过这种结构,能够以低成本实现同时提高(i)视野显示特性和(ii)TN显示用液晶显示装置的材料构件的使用效率的技术。
    • 8. 发明授权
    • Liquid tank, viewing device for under-liquid observation, and optical film
    • 液体罐,液体观察观察装置和光学膜
    • US08465160B2
    • 2013-06-18
    • US13200945
    • 2011-10-05
    • Nobuaki Yamada
    • Nobuaki Yamada
    • G02B27/00
    • G02B1/118A01K63/003G01F23/02G02B1/105G02B1/14
    • A liquid tank, a viewing device for under-liquid observation, and an optical film are disclosed, each excellent in visibility and durability and being easy to clean. In at least one embodiment of the present invention is directed to a liquid tank having a transparent wall, including, on an internal surface of the wall, a first moth-eye layer having a moth-eye structure, and a protective layer covering the moth-eye structure, in this order from the wall side, and preferably, further including, on an external surface of the wall, a second moth-eye layer having a moth-eye structure, and the second moth-eye layer being disposed in a region facing the first moth-eye layer.
    • 公开了一种液体罐,用于液体下观察的观察装置和光学膜,其可见性和耐久性都优异且易于清洁。 在本发明的至少一个实施例中,涉及一种具有透明壁的液体罐,在该壁的内表面上包括具有蛾眼结构的第一蛾眼层和覆盖蛾的保护层 从壁侧依次形成,优选在壁的外表面上进一步包括具有蛾眼结构的第二蛾眼层,第二蛾眼层被设置在 区域面向第一蛾眼层。