Retardation element, liquid crystal display device, and projection display device
    12.
    发明授权
    Retardation element, liquid crystal display device, and projection display device 有权
    延迟元件,液晶显示装置和投影显示装置

    公开(公告)号:US09594275B2

    公开(公告)日:2017-03-14

    申请号:US14494255

    申请日:2014-09-23

    Abstract: The present application provides a retardation element, having a first birefringent layer; and a second birefringent layer which has approximately the same average thickness as that of the first birefringent layer and contacts the first birefringent layer such that an angle formed between a first line segment representing the principal axis of refractive index anisotropy of the first birefringent layer and a second line segment representing the principal axis of refractive index anisotropy of the second birefringent layer is neither 0° nor 180° when the first line segment and the second line segment are projected on the transparent substrate such that an end A of the first line segment at a side of the transparent substrate and an end B of the second line segment at a side of the transparent substrate coincide with each other.

    Abstract translation: 本申请提供了具有第一双折射层的延迟元件; 以及第二双折射层,其具有与第一双折射层大致相同的平均厚度并与第一双折射层接触,使得形成在表示第一双折射层的折射率各向异性主轴的第一线段与第一双折射层之间形成的角度 当第一线段和第二线段投影在透明衬底上时,表示第二双折射层的折射率各向异性的主轴的第二线段既不是0°也不是180°,使得第一线段的端部A在 透明基板的一侧和第二线段的端部B在透明基板的一侧彼此重合。

    WAVELENGTH PLATE AND OPTICAL DEVICE
    13.
    发明申请
    WAVELENGTH PLATE AND OPTICAL DEVICE 审中-公开
    波长板和光学器件

    公开(公告)号:US20160274287A1

    公开(公告)日:2016-09-22

    申请号:US15070702

    申请日:2016-03-15

    CPC classification number: G02B5/3083 G02B27/288 G02F1/093

    Abstract: A wavelength plate, wherein first birefringent layer and second birefringent layer are laminated such that in-plane directions of optical axes of first birefringent layer and second birefringent layer cross each other, wherein the wavelength plate satisfies formulae (1), (2), (3), and (4), and wherein at least one of first birefringent layer and second birefringent layer is obliquely-deposited birefringent layer formed by oblique deposition, Δn1×t1=λ/2  (1) 1.7≦(Δn1×t1)/(Δn2×t2)≦2.7  (2) 5°≦θ1≦30°  (3) (2θ1+35°)≦θ2≦(2θ1+50°)  (4) where Δn1 represents birefringence of first birefringent layer, Δn2 represents birefringence of second birefringent layer, t1 represents a film thickness of first birefringent layer, t2 represents a film thickness of second birefringent layer, θ1 represents angle between optical axis of first birefringent layer and incident linearly polarized light, θ2 represents angle between optical axis of second birefringent layer and incident linearly polarized light, and λ represents a predetermined value in a range of wavelengths of incident light.

    Retardation element comprising a birefringent multilayer structure, liquid crystal display device, and projection display device
    14.
    发明授权
    Retardation element comprising a birefringent multilayer structure, liquid crystal display device, and projection display device 有权
    延迟元件包括双折射多层结构,液晶显示装置和投影显示装置

    公开(公告)号:US09279928B2

    公开(公告)日:2016-03-08

    申请号:US14519450

    申请日:2014-10-21

    Inventor: Nobuyuki Koike

    CPC classification number: G02B5/3083 G02F2001/133638

    Abstract: Provided is a retardation element, including: a transparent substrate; and a birefringent multilayer structure formed of layered structures stacked over the transparent substrate and each formed of first and second birefringent layers. In each layered structure, a relationship between average thicknesses (t1) and (t2) of the first and second birefringent layers satisfies any of formulae (1) and (2) below, and an angle (β) formed between first and second line segments representing principal axes of refractive index anisotropy of the first and second birefringent layers satisfies formula (3) below when the first and second line segments are projected on the transparent substrate such that an end A of the first line segment and an end B of the second line segment at a side of the transparent substrate coincide with each other, and condition (4) is satisfied, 0

    Abstract translation: 提供一种延迟元件,包括:透明基板; 以及由层叠在透明基板上而由第一和第二双折射层形成的层叠结构的双折射多层结构。 在每个分层结构中,第一和第二双折射层的平均厚度(t1)和(t2)之间的关系满足下面的式(1)和(2)中的任何一个,并且在第一和第二线之间形成的角度(& bgr) 表示第一和第二双折射层的折射率各向异性的主轴的段满足下面的公式(3),当第一和第二线段投影在透明基板上时,使得第一线段的端部A和 0

    Phase difference compensation element, liquid crystal display device, and projection-type image display device

    公开(公告)号:US10564477B2

    公开(公告)日:2020-02-18

    申请号:US15836527

    申请日:2017-12-08

    Abstract: An object is to provide a phase difference compensation element capable of improving the contrast of a liquid crystal display device while solving the problems of a high cost, an increase in the lead time, an increase in the mounting space, and the durability. A phase difference compensation element includes: a phase difference imparting and reflection preventing layer; a first birefringence layer and a second birefringence layer in which an angle of a corner formed by a main axis of refractive index anisotropy and a surface of a transparent substrate is not 90 degrees; a third birefringence layer in which an angle of a corner formed by a main axis of refractive index anisotropy and the surface of the transparent substrate is 0 degrees, wherein, when segments acquired when the main axes of the first, second, and third birefringence layers are projected onto the transparent substrate are respectively denoted by a segment A, a segment B, and a segment C, relations of the following (1) and (2) are satisfied. (1) The angle of the corner formed by the segment A and the segment B is 45 degrees or more and 70 degrees or less. (2) The segment A and the segment C are approximately parallel with each other, or the segment B and the segment C are approximately parallel with each other.

    RETARDATION ELEMENT, LIQUID CRYSTAL DISPLAY DEVICE, AND PROJECTION DISPLAY DEVICE
    18.
    发明申请
    RETARDATION ELEMENT, LIQUID CRYSTAL DISPLAY DEVICE, AND PROJECTION DISPLAY DEVICE 有权
    延迟元件,液晶显示装置和投影显示装置

    公开(公告)号:US20150109557A1

    公开(公告)日:2015-04-23

    申请号:US14519450

    申请日:2014-10-21

    Inventor: Nobuyuki Koike

    CPC classification number: G02B5/3083 G02F2001/133638

    Abstract: Provided is a retardation element, including: a transparent substrate; and a birefringent multilayer structure formed of layered structures stacked over the transparent substrate and each formed of first and second birefringent layers. In each layered structure, a relationship between average thicknesses (t1) and (t2) of the first and second birefringent layers satisfies any of formulae (1) and (2) below, and an angle (β) formed between first and second line segments representing principal axes of refractive index anisotropy of the first and second birefringent layers satisfies formula (3) below when the first and second line segments are projected on the transparent substrate such that an end A of the first line segment and an end B of the second line segment at a side of the transparent substrate coincide with each other, and condition (4) is satisfied, 0

    Abstract translation: 提供一种延迟元件,包括:透明基板; 以及由层叠在透明基板上而由第一和第二双折射层形成的层叠结构的双折射多层结构。 在每个分层结构中,第一和第二双折射层的平均厚度(t1)和(t2)之间的关系满足下面的式(1)和(2)中的任何一个,并且在第一和第二线之间形成的角度(& bgr) 表示第一和第二双折射层的折射率各向异性的主轴的段满足下面的公式(3),当第一和第二线段投影在透明基板上时,使得第一线段的端部A和 0

    RETARDATION ELEMENT, LIQUID CRYSTAL DISPLAY DEVICE, AND PROJECTION DISPLAY DEVICE
    19.
    发明申请
    RETARDATION ELEMENT, LIQUID CRYSTAL DISPLAY DEVICE, AND PROJECTION DISPLAY DEVICE 有权
    延迟元件,液晶显示装置和投影显示装置

    公开(公告)号:US20150092117A1

    公开(公告)日:2015-04-02

    申请号:US14494255

    申请日:2014-09-23

    Abstract: Provided is a retardation element, including: a transparent substrate; a retardation imparting antireflection layer; a first birefringent layer; and a second birefringent layer which has approximately the same average thickness as that of the first birefringent layer and contacts the first birefringent layer such that an angle formed between a first line segment representing the principal axis of refractive index anisotropy of the first birefringent layer and a second line segment representing the principal axis of refractive index anisotropy of the second birefringent layer is neither 0° nor 180° when the first line segment and the second line segment are projected on the transparent substrate such that an end A of the first line segment at a side of the transparent substrate and an end B of the second line segment at a side of the transparent substrate coincide with each other.

    Abstract translation: 提供一种延迟元件,包括:透明基板; 延迟赋予抗反射层; 第一双折射层; 以及第二双折射层,其具有与第一双折射层大致相同的平均厚度并与第一双折射层接触,使得在表示第一双折射层的折射率各向异性主轴的第一线段与第一双折射层之间形成的角度与 当第一线段和第二线段投影在透明衬底上时,表示第二双折射层的折射率各向异性的主轴的第二线段既不是0°也不是180°,使得第一线段的端部A在 透明基板的一侧和第二线段的端部B在透明基板的一侧彼此重合。

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