公开(公告)号：US20220206347A1

公开(公告)日：2022-06-30

申请号：US17698158

申请日：2022-03-18

Applicant: Japan Display Inc.

Inventor： Masashi MITSUI ,  Takeo KOITO ,  Tae KUROKAWA

IPC: G02F1/1343 ,  G02F1/1347 ,  G02F1/1335

Abstract: According to one embodiment, an optical control device includes a first liquid crystal cell and a second liquid crystal cell. The second liquid crystal cell is stacked on the first liquid crystal cell. The first liquid crystal cell has a function of modulating and converting a first polarization component of incident light into a second polarization component, and hardly modulating and converting a third polarization component of incident light into a fourth polarization component. The second liquid crystal cell has a function of hardly modulating the second polarization component transmitted through the first liquid crystal cell, and modulating the fourth polarization component transmitted through the first liquid crystal cell.

公开(公告)号：US20160077374A1

公开(公告)日：2016-03-17

申请号：US14945719

申请日：2015-11-19

Applicant: Japan Display Inc.

Inventor： Masaya TAMAKI ,  Masashi MITSUI ,  Yoko FUKUNAGA

IPC: G02F1/1335 ,  G02B5/02

CPC classification number: G02F1/133504 ,  G02B5/0257 ,  G02B5/0278 ,  G02F1/133553 ,  G02F1/133555 ,  G02F1/13363 ,  G02F2001/133638 ,  G02F2203/02

Abstract: A display device includes a reflective image display unit having a sheet-like anisotropic scattering member. The sheet-like anisotropic scattering member has a surface in which both a low refractive index area and a high refractive index area exist. The sheet-like anisotropic scattering member is disposed so that a light enters from a first surface thereof and exits as scattered light from a second surface thereof, when an extent of refractive index difference at a boundary or vicinity thereof between the low refractive index area and the high refractive index area is relatively large in the first surface and relatively small in the second surface.

公开(公告)号：US20150293400A1

公开(公告)日：2015-10-15

申请号：US14749006

申请日：2015-06-24

Applicant: Japan Display Inc.

Inventor： Masaya TAMAKI ,  Masashi MITSUI ,  Yoko FUKUNAGA

IPC: G02F1/1335 ,  G02B5/02

CPC classification number: G02F1/133504 ,  G02B5/0257 ,  G02B5/0278 ,  G02F1/133553 ,  G02F1/133555 ,  G02F1/13363 ,  G02F2001/133638 ,  G02F2203/02

Abstract: A display device includes a reflective image display unit having a sheet-like anisotropic scattering member. The sheet-like anisotropic scattering member has a surface in which both a low refractive index area and a high refractive index area exist. The sheet-like anisotropic scattering member is disposed so that a light enters from a first surface thereof and exits as scattered light from a second surface thereof, when an extent of refractive index difference at a boundary or vicinity thereof between the low refractive index area and the high refractive index area is relatively large in the first surface and relatively small in the second surface.

Abstract translation: 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。 片状各向异性散射构件具有其中存在低折射率区域和高折射率区域的表面。 片状各向异性散射构件被布置成使得光从其第一表面入射并作为散射光从其第二表面离开，当低折射率区域与低折射率区域之间的边界或其附近的折射率差的程度 高折射率区域在第一表面中相对较大并且在第二表面中相对较小。

公开(公告)号：US20140300845A1

公开(公告)日：2014-10-09

申请号：US14221893

申请日：2014-03-21

Applicant: Japan Display Inc.

Inventor： Masaya TAMAKI ,  Yoko FUKUNAGA ,  Masashi MITSUI ,  Susumu KIMURA

IPC: G02F1/1335

CPC classification number: G02F1/133514 ,  G02F1/133504 ,  G02F1/133512 ,  G02F1/133524 ,  G02F1/133553 ,  G02F1/13394 ,  G02F1/134336 ,  G02F2001/133616 ,  G02F2001/134345 ,  G02F2201/52

Abstract: According to an aspect, a display device includes: a display surface on which pixels each including sub-pixels of a plurality of colors are two-dimensionally arrayed; a reflective member; a first substrate provided with the reflective member; a second substrate arranged to face the first substrate; a color filter provided with filters of at least two colors corresponding to the sub-pixels; and a scattering member provided on the second substrate. A main viewing angle direction of the display device is a direction intersecting with the display surface. The color filter is formed such that a change in transmittance of the filters per pixel in the main viewing angle direction is smaller than a change in transmittance of the filters per pixel in a direction orthogonal to the main viewing angle direction in a direction parallel to the display surface.

Abstract translation: 根据本发明的一个方面，一种显示装置包括：二维排列有各自包含多种颜色的子像素的像素的显示面; 反光构件; 设置有所述反射构件的第一基板; 布置成面对所述第一基板的第二基板; 具有与所述子像素对应的至少两种颜色的滤色器的滤色器; 以及设置在第二基板上的散射构件。 显示装置的主视角方向是与显示面交叉的方向。 滤色器形成为使得主视角方向上的每个像素的滤光器的透射率的变化小于在与主视角方向正交的方向上的每个像素的滤色器的透射率在平行于主视角方向的方向上的变化 显示表面。

公开(公告)号：US20220373856A1

公开(公告)日：2022-11-24

申请号：US17881623

申请日：2022-08-05

Applicant: Japan Display Inc.

Inventor： Tae KUROKAWA ,  Takeo KOITO ,  Masashi MITSUI

IPC: G02F1/29 ,  G02F1/1343 ,  G02F1/1337

Abstract: According to one embodiment, a light control device includes a first liquid crystal cell including a first liquid crystal layer, a second liquid crystal cell including a second liquid crystal layer, and a polarization conversion element. The first liquid crystal layer and the second liquid crystal layer each includes a first region which scatters a first polarized component and transmits a second polarized component and a second region which transmits the first polarized component and scatters the second polarized component. The polarization conversion element overlaps the first region and the second region, converts the first polarized component into the second polarized component, and converts the second polarized component into the first polarized component.

公开(公告)号：US20220365402A1

公开(公告)日：2022-11-17

申请号：US17876549

申请日：2022-07-29

Applicant: Japan Display Inc.

Inventor： Tae KUROKAWA ,  Takeo KOITO ,  Masashi MITSUI

IPC: G02F1/29 ,  G02F1/1335 ,  G02F1/1343 ,  G02F1/137 ,  G02F1/1337

Abstract: According to one embodiment, a light control device comprises a first liquid crystal cell includes a first liquid crystal layer, a second liquid crystal cell includes a second liquid crystal layer, and a third liquid crystal cell includes a third liquid crystal layer. The first liquid crystal layer and the third liquid crystal layer each have a first region that scatters a first polarization component and that transmits a second polarization component. The second liquid crystal layer has a third region that overlaps the first region and converts the second polarization component into the first polarization component.

公开(公告)号：US20220299826A1

公开(公告)日：2022-09-22

申请号：US17805330

申请日：2022-06-03

Applicant: Japan Display Inc.

Inventor： Tae KUROKAWA ,  Takeo KOITO ,  Masashi MITSUI

IPC: G02F1/1343 ,  G02F1/1347 ,  G02F1/1333

Abstract: According to one embodiment, a light control device includes a first substrate including first to third electrodes formed in an annular shape and a fourth electrode, a second substrate, and a liquid crystal layer held between the first substrate and the second substrate. The first electrode and the second electrode are arranged in a first direction. The first electrode and the third electrode are arranged in a direction different from the first direction. The fourth electrode is adjacent to the first to third electrodes.

公开(公告)号：US20160363807A1

公开(公告)日：2016-12-15

申请号：US15248491

申请日：2016-08-26

Applicant: Japan Display Inc.

Inventor： Masashi MITSUI ,  Yoko FUKUNAGA

IPC: G02F1/1335 ,  G02F1/1343 ,  G02F1/137 ,  G02F1/133

CPC classification number: G02F1/133504 ,  G02F1/13306 ,  G02F1/133514 ,  G02F1/133528 ,  G02F1/133553 ,  G02F1/13363 ,  G02F1/134336 ,  G02F1/13439 ,  G02F1/136286 ,  G02F1/1368 ,  G02F1/137 ,  G02F2001/133357 ,  G02F2001/133638 ,  G02F2001/134345 ,  G02F2201/123 ,  G02F2203/02 ,  G02F2203/03 ,  G02F2413/02 ,  G02F2413/06

Abstract: A reflective liquid crystal display device includes a first substrate provided with a reflective electrode, a second substrate provided with a transparent electrode, a liquid crystal layer disposed between the first substrate and the second substrate, and an anisotropic scattering member formed on the second substrate. The anisotropic scattering member has first and second surfaces each including a first refractive index region and a second refractive index region having a refractive index different from that of the first refractive index region. A refractive index difference between the first refractive index region and the second refractive index region in the first surface is larger than that in the second surface. The anisotropic scattering member is disposed so that light enters from the first surface thereof and the light exits as scattered light from the second surface thereof. A phase difference is given to the light entered the anisotropic scattering member.

Abstract translation: 反射型液晶显示装置，具备设置有反射电极的第一基板，设置有透明电极的第二基板，设置在第一基板和第二基板之间的液晶层，以及形成在第二基板上的各向异性散射构件。 各向异性散射构件具有第一和第二表面，每个表面均包括具有与第一折射率区域不同的折射率的第一折射率区域和第二折射率区域。 第一表面中的第一折射率区域和第二折射率区域之间的折射率差大于第二表面中的折射率差。 各向异性散射构件被布置成使得光从其第一表面进入，并且光作为来自其第二表面的散射光离开。 对进入各向异性散射构件的光赋予相位差。

公开(公告)号：US20140267982A1

公开(公告)日：2014-09-18

申请号：US14198263

申请日：2014-03-05

Applicant: Japan Display Inc.

Inventor： Masashi MITSUI ,  Masaya TAMAKI ,  Yoko FUKUNAGA

IPC: G02F1/1335 ,  F21V8/00

CPC classification number: G02F1/133504 ,  G02B5/0257 ,  G02B5/0289 ,  G02F1/133524 ,  G02F1/133555 ,  G02F2001/133541 ,  G02F2001/133638

Abstract: A liquid crystal display device includes a first substrate provided with a reflective electrode, a second substrate provided with a transparent electrode oppositely disposed to the reflective electrode, a liquid crystal layer disposed between the first second substrates, a polarization plate oppositely disposed to the first substrate with an interposition of the second substrate, and an anisotropic scattering member disposed between the second substrate and the polarization plate. A main view angle direction is set as a predetermined direction intersecting a display surface. The anisotropic scattering member has a scattering center and scatters light traveling along a scattering axis direction which is a direction having a predetermined angle range centered around the scattering center. The scattering axis direction coincides with the main view angle direction.

Abstract translation: 液晶显示装置包括设置有反射电极的第一基板，设置有与反射电极相对设置的透明电极的第二基板，设置在第一第二基板之间的液晶层，与第一基板相对设置的偏光板 具有第二基板和第二基板与偏光板之间的各向异性散射部件的插入。 主视角方向设定为与显示面交叉的规定方向。 各向异性散射构件具有散射中心，散射以散射中心为中心的具有预定角度范围的方向的散射轴方向散射的光。 散射轴方向与主视角方向一致。

公开(公告)号：US20220373831A1

公开(公告)日：2022-11-24

申请号：US17881610

申请日：2022-08-05

Applicant: Japan Display Inc.

Inventor： Takeo KOITO ,  Tae KUROKAWA ,  Masashi MITSUI

IPC: G02F1/1347 ,  G02F1/1343 ,  G02F1/1335 ,  G02F1/137

Abstract: According to one embodiment, a light control device includes a first liquid crystal cell, a second liquid crystal cell, and a polarization conversion element disposed between the first liquid crystal cell and the second liquid crystal cell. One substrate of each of the first liquid crystal cell and the second liquid crystal cell includes an insulating substrate, and first to fourth electrodes arranged on the insulating substrate and formed in a strip shape. The electric potential difference between the first electrode and the second electrode, the electric potential difference between the second electrode and the third electrode, and the electric potential difference between the third electrode and the fourth electrode are different from each other.