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    Viewing angle limiting sheet and flat panel display
    91.
    发明专利
    Viewing angle limiting sheet and flat panel display 有权
    查看角度限制片和平板显示

    公开(公告)号：JP2013242550A

    公开(公告)日：2013-12-05

    申请号：JP2013088088

    申请日：2013-04-19

    Applicant: Keiwa Inc ,  恵和株式会社

    Inventor： TSUJI TAKAHIRO

    IPC: G02B5/02 ,  G02F1/1335 ,  G09F9/00

    CPC classification number: G02B5/0242 ,  G02B5/02 ,  G02B5/0236 ,  G02B5/0247 ,  G02F1/133504 ,  G02F1/133524 ,  G09F19/14

    Abstract: PROBLEM TO BE SOLVED: To provide a viewing angle limiting sheet capable of suitably preventing leakage of personal information or the like viewed in an oblique direction and also suppressing decrease in frontal luminance, and a flat panel display having the viewing angle limiting sheet.SOLUTION: A viewing angle limiting sheet has an optical functional layer having a plurality of first light-transmitting parts arranged in a multiple-row pattern and second light-transmitting parts each filling a space between the first light-transmitting parts. The first light-transmitting part is chamfered at both sides in an upper end thereof. The first light-transmitting part has an optical function different from that of the second light-transmitting part. At least a top end of the first light-transmitting part preferably has an inverted U-shape cross-sectional form. The first light-transmitting parts preferably comprise a resin matrix and a light diffusing agent included in the matrix.

    Abstract translation: 要解决的问题：提供一种能够适当地防止倾斜方向观看的个人信息等的泄漏并且还抑制正面亮度的降低的视角限制片以及具有视角限制片的平板显示器。解决方案： 视角限制片具有光学功能层，其具有以多列图案排列的多个第一透光部和分别填充第一透光部之间的空间的第二透光部。 第一透光部在其上端的两侧被倒角。 第一透光部具有与第二透光部不同的光学功能。 至少第一透光部的顶端优选具有倒U形截面形状。 第一透光部分优选包括基质中包含的树脂基质和光漫射剂。

    Viewing angle limiting sheet and flat panel display
    92.
    发明专利
    Viewing angle limiting sheet and flat panel display 有权
    查看角度限制片和平板显示

    公开(公告)号：JP2013228713A

    公开(公告)日：2013-11-07

    申请号：JP2013063828

    申请日：2013-03-26

    Applicant: Keiwa Inc ,  恵和株式会社

    Inventor： TSUJI TAKAHIRO

    IPC: G02B5/00 ,  B32B7/02 ,  G02B5/02 ,  G02F1/1335 ,  G09F9/00

    CPC classification number: G02B5/0236 ,  G02B5/0242 ,  G02B5/0278

    Abstract: PROBLEM TO BE SOLVED: To provide a viewing angle limiting sheet which is capable of suitably preventing leakage of personal information or the like from an oblique direction and suppressing the reduction in front brightness, and a flat panel display including the viewing angle limiting sheet.SOLUTION: The viewing angle limiting sheet includes an optical function layer having a plurality of first light-transmissive parts arranged like many stripes and having a rectangular cross section and second light-transmissive parts arranged between the first light-transmissive parts and having a rectangular cross section, and at least one of side surfaces facing each other of the first and second light-transmissive parts is formed into a light scattering surface with fine irregularities. Preferably, the light scattering surface has an arithmetic mean roughness (Ra) of 1.5 or more to 4 μm or less, and a ratio (Rz/Ra) of a ten-point mean roughness (Rz) to the arithmetic mean roughness (Ra) of the light scattering surface is 1 or more to 20 or less.

    Abstract translation: 要解决的问题：提供一种视角限制片，其能够适当地防止个人信息等从倾斜方向泄漏并抑制前方亮度的降低，以及包括视角限制片的平板显示器。 视角限制片包括光学功能层，其具有多个第一透光部分，其布置为多个条纹并具有矩形横截面，第二透光部分布置在第一透光部分之间并且具有矩形横截面 并且第一和第二透光部分彼此相对的侧表面中的至少一个被形成具有细小凹凸的光散射表面。 优选地，光散射面的算术平均粗糙度（Ra）为1.5以上且4μm以下，十点平均粗糙度（Rz）与算术平均粗糙度（Ra）的比（Rz / Ra） 的光散射面为1以上20以下。

    Display device
    93.
    发明专利
    Display device 有权
    显示设备

    公开(公告)号：JP2013186170A

    公开(公告)日：2013-09-19

    申请号：JP2012049152

    申请日：2012-03-06

    Applicant: Japan Display West Co Ltd ,  株式会社ジャパンディスプレイウェスト

    Inventor： MITSUI MASASHI

    IPC: G02F1/1335 ,  G02B5/02 ,  G09F9/30

    CPC classification number: G02F1/133504 ,  G02B5/0236 ,  G02B5/0257 ,  G02B5/0289 ,  G02B5/0294 ,  G02B2207/123 ,  G02F1/133553

    Abstract: PROBLEM TO BE SOLVED: To provide a display device which can reduce rainbow-coloring caused by a structure of an anisotropic scattering member.SOLUTION: The display device includes a reflective image display unit including a sheet-like anisotropic scattering member. An area of the anisotropic scattering member in an in-plane direction is formed such that low-refractive index areas are mixed with high-refractive index areas. The anisotropic scattering member is disposed such that light is scattered when external light is incident on a surface having relatively large change in the refractive index in the vicinity of boundaries between the low-refractive index areas and the high-refractive index areas and then exits from a surface having relatively small change in the refractive index in the vicinity of boundaries between the low-refractive index areas and the high-refractive index areas.

    Abstract translation: 要解决的问题：提供一种可以减少由各向异性散射构件的结构引起的彩虹着色的显示装置。解决方案：显示装置包括具有片状各向异性散射构件的反射图像显示单元。 各向异性散射部件的面内方向的面积形成为使低折射率区域与高折射率区域混合。 各向异性散射构件被布置成使得当外部光入射到低折射率区域和高折射率区域之间的边界附近的折射率变化相对较大的表面上时，散射光，然后从 在低折射率区域和高折射率区域之间的边界附近的折射率变化相对较小的表面。

    Display device and anisotropic scatterer
    94.
    发明专利
    Display device and anisotropic scatterer 有权
    显示设备和各向异性扫描仪

    公开(公告)号：JP2013182227A

    公开(公告)日：2013-09-12

    申请号：JP2012047561

    申请日：2012-03-05

    Applicant: Japan Display West Co Ltd ,  株式会社ジャパンディスプレイウェスト ,  Tomoegawa Paper Co Ltd ,  株式会社巴川製紙所

    Inventor： TAMAOKI MASAYA ,  YADA TATSUYA ,  FUKUNAGA YOKO ,  MITSUI MASASHI ,  KATAGIRI HIROTO ,  SUGIYAMA HITOHIDE

    IPC: G09F9/00 ,  G02B5/00 ,  G02B5/02 ,  G02F1/1335

    CPC classification number: G02F1/133504 ,  G02B5/0236

    Abstract: PROBLEM TO BE SOLVED: To mitigate impression that an image is metal-lustrous, in a display device comprising a reflective image display section including an anisotropic scatterer.SOLUTION: A display device comprises a reflective image display section including an anisotropic scatterer 20 to allow a scattering characteristic of light in a display region to have an angle dependence. The anisotropic scattering member 20 is configured to change the scattering characteristic of the light continuously in an in-plane direction, to allow, upon viewing from a predetermined view position the display region in which an image of the same gray scale is being displayed, the luminance of the image to be uniform.

    Abstract translation: 要解决的问题：为了减轻图像是金属光泽的印象，包括包括各向异性散射体的反射图像显示部分的显示装置。解决方案：显示装置包括反射图像显示部分，其包括各向异性散射体20，以允许 在显示区域中的光的散射特性具有角度依赖性。 各向异性散射构件20被配置为在面内方向上连续地改变光的散射特性，以允许在从预定视点位置观察显示相同灰度的图像的显示区域时， 图像的亮度均匀。

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