公开(公告)号：US20240210760A1

公开(公告)日：2024-06-27

申请号：US18391863

申请日：2023-12-21

Applicant: Japan Display Inc.

Inventor： Tetsuya OOSHIMA

IPC: G02F1/13357 ,  G02B5/30 ,  G02B27/01

CPC classification number: G02F1/13362 ,  G02B5/3033 ,  G02B5/3083 ,  G02B27/0172 ,  G02F1/133605

Abstract: A liquid crystal display device includes a transmissive liquid crystal panel having a first surface and a second surface opposite the first surface, a first polarizing film arranged on a side of the first surface of the transmissive liquid crystal panel, a second polarizing film arranged on an opposite side of the first polarizing film from the transmissive liquid crystal panel, and a third polarizing film arranged on a side of the second surface of the transmissive liquid crystal panel. An absorption axis of the first polarizing film is arranged parallel to an initial alignment direction of liquid crystal molecules included in the transmissive liquid crystal panel, the first polarizing film and the third polarizing film are arranged in a crossed Nicol manner, and an absorption axis of the second polarizing film is inclined with respect to the absorption axis of the first polarizing film.

公开(公告)号：US20210247609A1

公开(公告)日：2021-08-12

申请号：US17054761

申请日：2019-03-22

Applicant: Tomoegawa Co., Ltd. ,  Japan Display Inc.

Inventor： Tsubasa SAKANO ,  Masahide SUGIYAMA ,  Tetsuya OOSHIMA ,  Ryotaro KOGURE ,  Yukihiro NAKAMURA

IPC: G02B27/01 ,  G02F1/1335

Abstract: This head-mounted display is provided with, closer to the viewing side than a color filter having a black matrix between pixels in a liquid crystal display panel (160), an anisotropic optical film (150), the linear transmittance of which changes according to the angle of incident light, wherein the anisotropic optical film (150) includes a single-layered or multilayered anisotropic light diffusion layer, on at least on one surface of the anisotropic light diffusion layer, surface asperities having an arithmetic average roughness Ra of 0.10 μm or less, which is measured in accordance with JIS B0601-2001, are formed, the anisotropic light diffusion layer has a matrix region and a plurality of pillar regions having a refractive index different from that of the matrix region, and the visibility of the black matrix is lowered by the anisotropic optical film (150), thereby making it possible to obtain a higher sense of immersion without feeling coloring.

公开(公告)号：US20170227701A1

公开(公告)日：2017-08-10

申请号：US15420648

申请日：2017-01-31

Applicant: Japan Display Inc.

Inventor： Masaki NISHIKAWA ,  Tetsuya OOSHIMA ,  Yasuhisa SHIRAISHI ,  Masateru MORIMOTO

IPC: F21V8/00 ,  G02F1/1335

CPC classification number: G02B6/005 ,  G02B6/00 ,  G02B6/0051 ,  G02B6/0053 ,  G02B6/0055 ,  G02F1/133528 ,  G02F1/133615 ,  G02F1/133621 ,  G02F2001/133614 ,  G02F2201/501 ,  G02F2202/28 ,  G02F2202/36 ,  G02F2203/03

Abstract: To provide a thin liquid crystal display device featuring excellent color reproducibility. The liquid crystal display panel includes: a liquid crystal display panel outputting different colors on a per-pixel basis; and a backlight. The backlight includes: a light source; a light guide; a reflective sheet on a back side of the light guide; and a group of optical sheets including a wavelength converter and disposed between the liquid crystal display panel and the light guide. The wavelength converter has a structure where quantum dots are dispersed in a transparent medium. The wavelength converter is bonded to another optical medium by means of a diffusing adhesive. Nanoparticles for developing Rayleigh scattering are dispersed in the wavelength converter.

公开(公告)号：US20240418996A1

公开(公告)日：2024-12-19

申请号：US18735326

申请日：2024-06-06

Applicant: JAPAN DISPLAY INC.

Inventor： Tetsuya OOSHIMA ,  Shinichi KOMURA

IPC: G02B27/01 ,  G02B5/30 ,  G02B5/32 ,  G02F1/1335

Abstract: According to one embodiment, a display device includes a display element including a display portion which displays an image, a first retardation film overlapping the display element, a holographic optical element adjacent to the display element and not overlapping the display portion, a second retardation film having a first surface which faces the first retardation film and the holographic optical element and which directly contacts neither a main surface of the first retardation film nor a main surface of the holographic optical element, and a second surface on an opposite side to the first surface, and a reflective polarizer disposed on the second surface.

公开(公告)号：US20240418995A1

公开(公告)日：2024-12-19

申请号：US18732940

申请日：2024-06-04

Applicant: JAPAN DISPLAY INC.

Inventor： Tetsuya OOSHIMA ,  Shinichi KOMURA ,  Keiji TAGO

IPC: G02B27/01 ,  G02B5/30

Abstract: According to one embodiment, a display device includes a display element, a first retardation film overlapping the display element, an optical element overlapping the display element and the first retardation film and having a lens action, a second retardation film overlapping the optical element and having a first main surface, and a reflective polarizer overlapping the second retardation film, not directly contacting the first main surface, and having a second main surface which is opposed to the first main surface and which is rotatable.

公开(公告)号：US20160187722A1

公开(公告)日：2016-06-30

申请号：US14982912

申请日：2015-12-29

Applicant: Japan Display Inc.

Inventor： Masaki NISHIKAWA ,  Tetsuya OOSHIMA

IPC: G02F1/1335 ,  G02F1/1343 ,  G02F1/13363 ,  G02F1/1337

CPC classification number: G02F1/13363 ,  G02F1/134309 ,  G02F2001/134372 ,  G02F2413/08

Abstract: In an FFS liquid crystal display device, viewing angle characteristics are further improved. In an FFS liquid crystal display device, the alignment axis of a first alignment film of a first substrate and the alignment axis of a second alignment film of a second substrate are directed in the same direction. At least two of an upper polarizer, a lower polarizer, or a retardation plate 160 satisfy conditions below. (1) The absorption axis of the upper polarizer forms an angle of one to 45 degrees inclusive with the alignment axis. (2) The absorption axis of the lower polarizer forms an angle of 91 to 135 degrees inclusive or forms an angle of 45 to 89 degrees inclusive with the alignment axis. (3) The extension axis of the retardation plate 160 forms an angle of one to 45 degrees inclusive with the alignment axis.

Abstract translation: 在FFS液晶显示装置中，视角特性进一步提高。 在FFS液晶显示装置中，第一基板的第一取向膜的取向轴和第二基板的第二取向膜的取向轴朝向相同的方向。 上偏振器，下偏振器或延迟板160中的至少两个满足以下条件。 （1）上偏振片的吸收轴与对准轴形成1〜45度的角度。 （2）下偏振片的吸收轴形成91〜135度的角度，或者与对准轴成45度〜89度的角度。 （3）相位差板160的延伸轴与对准轴形成1〜45度的角度。