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    DISPLAY DEVICE AND METHOD FOR SELECTING OPTICAL FILM OF DISPLAY DEVICE
    1.
    发明申请
    DISPLAY DEVICE AND METHOD FOR SELECTING OPTICAL FILM OF DISPLAY DEVICE 有权

    公开(公告)号：US20210003760A1

    公开(公告)日：2021-01-07

    申请号：US17024146

    申请日：2020-09-17

    Applicant: Yasuhiro KOIKE ,  DAI NIPPON PRINTING CO., LTD.

    Inventor： Takashi KURODA ,  Yasuhiro KOIKE

    IPC: G02B5/30 ,  G09F9/00 ,  H01L51/50 ,  H05B33/02 ,  G02F1/13363

    Abstract: There is provided a display device exhibiting a good color reproducibility, even when observed through polarized sunglasses. A display device comprises a polarizer a and an optical film X on a surface on a light emitting surface side of a display element, wherein L1, which is the light incident vertically on the optical film X, among light incident on the optical film X from the display element side, satisfies a specific condition, and L2, which is the light emitting vertically from the light emitting surface side of the optical film X, and passing through a polarizer b having the absorption axis parallel to the absorption axis of the polarizer a, satisfies a specific condition.

    INFRARED-RAY REFLECTIVE MEMBER
    2.
    发明申请
    INFRARED-RAY REFLECTIVE MEMBER 审中-公开
    红外反射成员

    公开(公告)号：US20150168622A1

    公开(公告)日：2015-06-18

    申请号：US14633348

    申请日：2015-02-27

    Applicant: DAI NIPPON PRINTING CO., LTD.

    Inventor： Satoru HAMADA ,  Shoji TAKESHIGE ,  Keiji KASHIMA ,  Takashi KURODA

    IPC: G02B5/30 ,  C09K19/58 ,  C09K19/36 ,  G02B5/20 ,  G02B5/26

    CPC classification number: G02B5/208 ,  C09K19/322 ,  C09K19/36 ,  C09K19/586 ,  C09K19/588 ,  C09K2019/0448 ,  C09K2019/2035 ,  C09K2019/2042 ,  C09K2019/2078 ,  C09K2019/323 ,  G02B5/26 ,  G02B5/30 ,  G02B5/3016 ,  G02B5/305

    Abstract: Disclosed is an infrared-ray reflective member which efficiently reflects infrared rays (heat rays) contained in sunlight while transmitting visible light rays. The infrared-ray reflective member has an infrared-ray reflective layer having a selective reflection layer for reflecting infrared rays of a right-circularly polarized light component or a left-circularly polarized light component, and the infrared-ray reflective layer has a first reflection band corresponding to a first radiant energy band containing a peak located closest to the short-wavelength side of the infrared range of the spectrum of sunlight on earth, and when the maximum reflectance in the first reflection band is determined at R1 and a wavelength in the short-wavelength side for allowing half-value reflectance of the R1 is determined at λ1, the λ1 is 900 nm to 1010 nm.

    Abstract translation: 公开了一种红外线反射构件，其在透射可见光的同时有效地反射包含在太阳光中的红外线（热线）。 红外线反射构件具有红外线反射层，其具有用于反射右圆偏振光分量或左圆偏振光分量的红外线的选择反射层，并且红外线反射层具有第一反射 对应于包含最靠近地球上太阳光谱的红外范围的短波长侧的峰的第一辐射能带，并且当在第一反射带中的最大反射率在R1和波长 在λ1处确定用于允许R1的半值反射率的短波长侧，λ1为900nm至1010nm。

    OPTICAL FILM, POLARIZING PLATE, IMAGE DISPLAY DEVICE, AND OPTICAL FILM SELECTION METHOD
    3.
    发明申请
    OPTICAL FILM, POLARIZING PLATE, IMAGE DISPLAY DEVICE, AND OPTICAL FILM SELECTION METHOD 有权

    公开(公告)号：US20220365265A1

    公开(公告)日：2022-11-17

    申请号：US17764456

    申请日：2020-09-30

    Applicant: DAI NIPPON PRINTING CO., LTD.

    Inventor： Shosei KUBOTA ,  Yoshiko TANAKA ,  Norio ISHII ,  Takashi KURODA ,  Hiroaki SEGAWA ,  Akinobu USHIYAMA

    IPC: G02B5/30

    Abstract: Provided is an optical film that can suppress rainbow unevenness when viewed with the naked eyes without increasing the in-plane phase difference. The optical film has a low-refractive index layer on a plastic film, the plastic film is a biaxially stretched plastic film with an in-plane phase difference of 2500 nm or less, the low-refractive index layer is located on the outermost surface, and the optical film has a region in which ΔEab satisfies specific conditions, wherein the ΔEab is calculated from the differences between the L* value, the a* value, and the b* value obtained by measuring a laminate 1 including the optical film, the polarizer, and the surface light source under specific conditions and the L* value, the a* value, and the b* value obtained by measuring a laminate 2 including the polarizer and the surface light source under specific conditions, respectively.

    OPTICAL FILM, POLARIZER PROTECTIVE FILM, TRANSFER BODY FOR POLARIZER PROTECTIVE FILM, POLARIZATION PLATE, IMAGE DISPLAY DEVICE, AND METHOD FOR MANUFACTURING POLARIZER PROTECTIVE FILM
    4.
    发明申请
    OPTICAL FILM, POLARIZER PROTECTIVE FILM, TRANSFER BODY FOR POLARIZER PROTECTIVE FILM, POLARIZATION PLATE, IMAGE DISPLAY DEVICE, AND METHOD FOR MANUFACTURING POLARIZER PROTECTIVE FILM 有权

    公开(公告)号：US20220075227A1

    公开(公告)日：2022-03-10

    申请号：US17419050

    申请日：2019-12-27

    Applicant: DAI NIPPON PRINTING CO., LTD.

    Inventor： Seiichi ISOJIMA ,  Takahisa NOMURA ,  Tomoyuki HORIO ,  Makoto NANAUMI ,  Kana HORII ,  Yusuke HIRUMA ,  Takashi KURODA

    IPC: G02F1/1335 ,  G02F1/1333 ,  G02F1/00 ,  H01L51/00

    Abstract: Provided is an optical film which can promise to be thinner and makes it possible to enhance adhesion between a first functional layer and a second functional layer; and a polarizing plate and an image display device both of which include such an optical film. One aspect of the present invention is to provide an optical film 10 including a light-transmitting base material 11, a first functional layer 12, and a second functional layer 13 in this order, and further including a mixed layer 14; wherein at least one of the first functional layer 12 and the second functional layer 13 contains an ultraviolet absorber; wherein the mixed layer 14 is provided between the first functional layer 12 and the second functional layer 13, is adjacent to the first functional layer 12 and the second functional layer 13, and contains a component of the first functional layer 12 and a component of the second functional layer 13; wherein the total film thickness of the first functional layer 12, the second functional layer 13, and the mixed layer 14 is 1 μm or more and 10 μm or less; and wherein the ratio of the film thickness of the mixed layer 14 to the total film thickness of the first functional layer 12, the second functional layer 13, and the mixed layer 14 is 0.6% or more and 40% or less.

    DISPLAY PANEL, DISPLAY DEVICE, AND METHOD FOR SORTING PHASE DIFFERENCE LAYER OF DISPLAY PANEL
    5.
    发明申请
    DISPLAY PANEL, DISPLAY DEVICE, AND METHOD FOR SORTING PHASE DIFFERENCE LAYER OF DISPLAY PANEL 有权

    公开(公告)号：US20210181398A1

    公开(公告)日：2021-06-17

    申请号：US17032483

    申请日：2020-09-25

    Applicant: DAI NIPPON PRINTING CO., LTD.

    Inventor： Satoshi EMORI ,  Takashi KURODA

    IPC: G02B5/30 ,  H01L51/52

    Abstract: The present invention provides a display panel in which deterioration of color tone may be suppressed regardless of the reflectance of the display element.
    A display panel including a display element (A), a retardation layer (B) positioned upon the light emission surface side of the display element, and a polarizer (C) positioned upon the light emission surface side of the retardation layer, in which the retardation layer (B) has a λ/4 retardation layer (B1), and the in-plane retardation of the λ/4 retardation layer (B1) satisfies the following Condition 1:

    The spectral reflectance of the display element is measured by an SCI method, the average reflectance at wavelengths over the range of 400 nm or more and less than 550 nm is obtained as R1, the average reflectance at wavelengths over the range of 550 nm or more and less than 700 nm is obtained as R2, and when the value of R1/R2 is calculated and obtained as x, the in-plane retardation of the λ/4 retardation layer falls within the range of −4.6002x+119.24 nm or more and −4.6002x+129.24 nm or less.

    OPTICAL LAYERED BODY AND DISPLAY DEVICE
    6.
    发明申请
    OPTICAL LAYERED BODY AND DISPLAY DEVICE 审中-公开

    公开(公告)号：US20190255807A1

    公开(公告)日：2019-08-22

    申请号：US16312777

    申请日：2017-06-30

    Applicant: Yasuhiro KOIKE ,  DAI NIPPON PRINTING CO., LTD.

    Inventor： Seiichi ISOJIMA ,  Takashi KURODA

    IPC: B32B7/023 ,  B32B27/34 ,  B32B27/36 ,  G02B5/30 ,  G09F9/30 ,  H01L27/32 ,  H01L51/50 ,  H05B33/02

    Abstract: The present invention provides: an optical laminate comprising at least two films, the optical laminate comprising at least a film A satisfying a given condition (1) and a film C satisfying a given condition (2), wherein a retardation value Re(0) observed in a direction of an axis perpendicular to a plane of the optical laminate is 4,000 to 30,000 nm, and a retardation value Re(40) observed in a direction of an axis tilted from the axis perpendicular to the plane of the optical laminate toward a slow axis by 40 degrees in a plane lying perpendicular to the plane of the optical laminate and extending along the slow axis is 4,000 to 25,000 nm, the slow axis being an axis along which refractive index is highest in a plane of the film A; and a display device comprising the optical laminate.

    DISPLAY DEVICE AND METHOD FOR SELECTING OPTICAL FILM OF DISPLAY DEVICE
    8.
    发明申请
    DISPLAY DEVICE AND METHOD FOR SELECTING OPTICAL FILM OF DISPLAY DEVICE 审中-公开

    公开(公告)号：US20190011620A1

    公开(公告)日：2019-01-10

    申请号：US16068541

    申请日：2017-01-06

    Applicant: Yasuhiro KOIKE ,  DAI NIPPON PRINTING CO., LTD.

    Inventor： Takashi KURODA ,  Yasuhiro KOIKE

    IPC: G02B5/30 ,  G09F9/00 ,  H01L51/50 ,  H05B33/02 ,  G02F1/13363

    Abstract: There is provided a display device exhibiting a good color reproducibility, even when observed through polarized sunglasses. A display device comprises a polarizer a and an optical film X on a surface on a light emitting surface side of a display element, wherein L1, which is the light incident vertically on the optical film X, among light incident on the optical film X from the display element side, satisfies a specific condition, and L2, which is the light emitting vertically from the light emitting surface side of the optical film X, and passing through a polarizer b having the absorption axis parallel to the absorption axis of the polarizer a, satisfies a specific condition.

    ELECTROCONDUCTIVE FILM AND TOUCH PANEL SENSOR
    9.
    发明申请
    ELECTROCONDUCTIVE FILM AND TOUCH PANEL SENSOR 有权
    电磁膜和触控面板传感器

    公开(公告)号：US20150268771A1

    公开(公告)日：2015-09-24

    申请号：US14660111

    申请日：2015-03-17

    Applicant: DAI NIPPON PRINTING CO., LTD.

    Inventor： Koujirou OOKAWA ,  Takashi KURODA

    IPC: G06F3/047 ,  G06F3/044 ,  G09G5/00 ,  H05K1/02 ,  H05K1/03

    CPC classification number: G06F3/044 ,  G09G5/003 ,  G09G2300/04 ,  H05K1/0274 ,  H05K1/0326 ,  H05K2201/0108 ,  H05K2201/0326

    Abstract: Provided is an electroconductive film including a base material film provided with a light transmissive base material (20), and one or more functional layers laminated on a single or both sides of the light transmissive base material; a transparent electroconductive layer, which is provided on the functional layer, and patterned; and a lead-out electrode electrically connected with the transparent electroconductive layer; wherein when the base material film is irradiated with light from a surface side of the functional layer while an incidence angle is varied every five degrees in a range of 5° or more and 75° or less to determine a* and b* values of the base material film in a L*a*b* color system from reflected light toward each regular reflection direction, a variation of the a* values is 1.0 or less, and a variation of the b* values is 3.0 or less.

    Abstract translation: 提供一种导电膜，其包括设置有透光性基材（20）的基材膜和层叠在透光性基材的单面或两面的一个以上的功能层， 设置在功能层上的透明导电层，并图案化; 以及与所述透明导电层电连接的引出电极; 其特征在于，当从所述功能层的表面侧照射所述基材膜时，在5°以上且75°以下的范围内每五度变化入射角度来确定所述基材薄膜的*和b *值 从反射光朝向每个正反射方向的L * a * b *颜色系统中的基材膜，a *值的变化为1.0以下，b *值的变化为3.0以下。

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