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公开(公告)号：US20230055455A1
公开(公告)日：2023-02-23
申请号：US18046201
申请日：2022-10-13
IPC分类号： F21V8/00 , G02F1/13357
摘要： Provided are a light guide plate, an area light source device, a display device, and manufacturing method for the light guide plate such that the occurrence of uneven luminance is suppressed. The light guide plate is characterized in that the light guide plate has a light entrance surface through which light enters, a light exit surface intersecting with the light entrance surface and through which light is output, and an opposite surface facing the light entrance surface, wherein the light entering through the light entrance surface is guided to the opposite surface side and output from the light exit surface, and the refractive index Nx in a direction perpendicular to the light entrance surface is higher than the refractive index Ny in a direction parallel to the light exit surface and parallel to the light entrance surface.
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2.发明公开公开(公告)号：US20240077665A1
公开(公告)日：2024-03-07
申请号：US18504432
申请日：2023-11-08
IPC分类号： F21V8/00 , G02F1/13357
CPC分类号： G02B6/0036 , G02F1/133615
摘要： Provided are a light guide plate, an area light source device, a display device, and manufacturing method for the light guide plate such that the occurrence of uneven luminance is suppressed. The light guide plate is characterized in that the light guide plate has a light entrance surface through which light enters, a light exit surface intersecting with the light entrance surface and through which light is output, and an opposite surface facing the light entrance surface, wherein the light entering through the light entrance surface is guided to the opposite surface side and output from the light exit surface, and the refractive index Nx in a direction perpendicular to the light entrance surface is higher than the refractive index Ny in a direction parallel to the light exit surface and parallel to the light entrance surface.
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公开(公告)号：US20210088710A1
公开(公告)日：2021-03-25
申请号：US17047163
申请日：2018-04-16
IPC分类号： F21V8/00
摘要： Provided are a light guide plate, an area light source device, a display device, and manufacturing method for the light guide plate such that the occurrence of uneven luminance is suppressed. The light guide plate (12) is characterized in that the light guide plate has a light entrance surface (12a) through which light enters, a light exit surface (12c) intersecting with the light entrance surface (12a) and through which light is output, and an opposite surface (12b) facing the light entrance surface (12a), wherein the light entering through the light entrance surface (12a) is guided to the opposite surface (12b) side and output from the light exit surface (12c), and the refractive index Nx in a direction perpendicular to the light entrance surface (12a) is higher than the refractive index Ny in a direction parallel to the light exit surface (12c) and parallel to the light entrance surface (12a).
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4.发明公开公开(公告)号：US20240345308A1
公开(公告)日：2024-10-17
申请号：US18751407
申请日：2024-06-24
IPC分类号： F21V8/00 , G02F1/13357
CPC分类号： G02B6/0036 , G02F1/133615
摘要： Provided are a light guide plate, an area light source device, a display device, and manufacturing method for the light guide plate such that the occurrence of uneven luminance is suppressed. The light guide plate is characterized in that the light guide plate has a light entrance surface through which light enters, a light exit surface intersecting with the light entrance surface and through which light is output, and an opposite surface facing the light entrance surface, wherein the light entering through the light entrance surface is guided to the opposite surface side and output from the light exit surface, and the refractive index Nx in a direction perpendicular to the light entrance surface is higher than the refractive index Ny in a direction parallel to the light exit surface and parallel to the light entrance surface.
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公开(公告)号：US20140055854A1
公开(公告)日：2014-02-27
申请号：US13903277
申请日：2013-05-28
发明人： Fumihiro ARAKAWA , Takashi KURODA , Kohei KOMIZO
CPC分类号： G02B27/26 , G02B5/3083 , G02B27/2214
摘要： An optical sheet (40) is used in a display device for switchably displaying a two-dimensional image and a naked-eye visible three-dimensional image. The optical sheet (40) includes: a first layer (51) including a thermoplastic resin; and a second layer (52) laminated to the first layer. The first layer is an optically anisotropic An optical interface (55) for changing the traveling direction of light of one polarization component is formed between the first layer (51) and the second layer (52).
摘要翻译： 在用于可切换地显示二维图像和肉眼可见三维图像的显示装置中使用光学片（40）。 光学片（40）包括：包含热塑性树脂的第一层（51） 和层压到第一层的第二层（52）。 第一层是在第一层（51）和第二层（52）之间形成用于改变一个偏振分量的光的行进方向的光学各向异性的光学界面（55）。
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