公开(公告)号：US11953712B2

公开(公告)日：2024-04-09

申请号：US18314149

申请日：2023-05-09

Applicant: Japan Display Inc.

Inventor： Ken Onoda ,  Shinichi Komura ,  Koichi Okuda ,  Hiroaki Kijima

IPC: F21V8/00

CPC classification number: G02B6/0038 ,  G02B6/0068 ,  G02B6/0076

Abstract: According to one embodiment, a display device includes a display panel, a first light guide, and a second light guide. In the first light guide, a first main surface includes a first plane and first grooves between the first plane and a first side surface, a second main surface includes second grooves orthogonal to the first grooves, and a second plane between the second grooves and the first side surface. In the second light guide, a third main surface includes a third plane and third grooves located between the third plane and a fourth side surface, a fourth main surface includes fourth grooves orthogonal to the third grooves, and a fourth plane located between the fourth grooves and the fourth side surface.

公开(公告)号：US11808963B2

公开(公告)日：2023-11-07

申请号：US17981558

申请日：2022-11-07

Applicant: Japan Display Inc.

Inventor： Shinichi Komura ,  Koichi Okuda ,  Hiroaki Kijima ,  Ken Onoda

IPC: F21V8/00

CPC classification number: G02B6/0036 ,  G02B6/0045 ,  G02B6/0068

Abstract: According to one embodiment, an illumination device includes a light guide including a first main surface, a second main surface, a first side surface, and a second side surface, a plurality of convex portions provided on the second main surface, and a first light source element and a second light source element opposing the first side surface and the second side surface, respectively, and when an incident angle of a main ray of the light propagating in the light guide is expressed by θ, a diffusion angle of the light is δ, an angle of the convex portion of the light guide is α, a critical angle of the light guide is θc, and an angle which satisfies (90°−θc) is β0, a relationship: ((β0+δ)/3)

公开(公告)号：US11796730B2

公开(公告)日：2023-10-24

申请号：US17663043

申请日：2022-05-12

Applicant: Japan Display Inc.

Inventor： Hiroaki Kijima ,  Shinichi Komura ,  Koichi Okuda ,  Ken Onoda

IPC: F21V8/00

CPC classification number: G02B6/0036 ,  G02B6/009 ,  G02B6/0031 ,  G02B6/0053 ,  G02B6/0076 ,  G02B6/0055

Abstract: According to one embodiment, an illumination device includes a first light guide including a first main surface, a second main surface, a first side surface and a second side surface, a first light source and a first layer including a first prism provided on the second side surface. The first prism protrudes from the second main surface toward the opposite side to the first main surface and has a cross-sectional shape of a triangle with a first slope and a second slope. The incident angle of light emitted from the first light source and entering the first light guide from the second side surface, the angle between the first slope and the first direction, and the angle between the first slope and the second slope are set to values that satisfy the predetermined conditions, respectively.

公开(公告)号：US11650450B2

公开(公告)日：2023-05-16

申请号：US17747116

申请日：2022-05-18

Applicant: Japan Display Inc. ,  Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Shoichi Hirota ,  Shinichi Komura ,  Yoshifumi Sekiguchi ,  Tsunenori Yamamoto ,  Masaya Adachi

IPC: G02F1/1335 ,  H01L27/32 ,  G09G3/36 ,  G02F1/1343 ,  G02F1/1362 ,  G09G3/20

CPC classification number: G02F1/133514 ,  G02F1/134309 ,  G02F1/136286 ,  G09G3/2003 ,  G09G3/3607 ,  G09G3/3648 ,  H01L27/3213 ,  H01L27/3218 ,  G09G3/2074 ,  G09G2300/0452 ,  G09G2300/0456 ,  G09G2320/0219 ,  G09G2320/0233 ,  G09G2320/0276

Abstract: A color display device comprises an array of a plurality of sub-pixels including a red sub-pixel, a blue sub-pixel, a first green sub-pixel and a second green sub-pixel. The first green sub-pixel and the second green sub-pixel are smaller than that of the red sub-pixel or the blue sub-pixel. The two adjacent first green sub-pixels are arranged in a first direction, the two adjacent second green sub-pixels are arranged in the first direction. The blue sub-pixel is directly adjacent to the red sub-pixel in a second direction; the blue sub-pixel is directly adjacent to the two first green sub-pixels and the two second green sub-pixels.

公开(公告)号：US11347100B2

公开(公告)日：2022-05-31

申请号：US17159800

申请日：2021-01-27

Applicant: Japan Display Inc. ,  Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Shoichi Hirota ,  Shinichi Komura ,  Yoshifumi Sekiguchi ,  Tsunenori Yamamoto ,  Masaya Adachi

IPC: G02F1/1335 ,  H01L27/32 ,  G09G3/36 ,  G02F1/1343 ,  G02F1/1362 ,  G09G3/20

Abstract: A color display device comprises an array of a plurality of sub-pixels including a red sub-pixel, a blue sub-pixel, a first green sub-pixel and a second green sub-pixel. The first green sub-pixel and the second green sub-pixel are smaller than that of the red sub-pixel or the blue sub-pixel. The two adjacent first green sub-pixels are arranged in a first direction, the two adjacent second green sub-pixels are arranged in the first direction. The blue sub-pixel is directly adjacent to the red sub-pixel in a second direction; the blue sub-pixel is directly adjacent to the two first green sub-pixels and the two second green sub-pixels.

公开(公告)号：US11237319B2

公开(公告)日：2022-02-01

申请号：US17340651

申请日：2021-06-07

Applicant: Japan Display Inc.

Inventor： Hiroaki Kijima ,  Shinichi Komura ,  Yoichi Asakawa ,  Ken Onoda

IPC: F21V8/00

Abstract: According to one embodiment, the illumination device includes a first area, a second area, a first light guide, a plurality of first light sources, a second light guide, a plurality of second light sources, a first layer and a second layer. The first layer extends from the first area over a boundary between the first area and the second area, to between a second side surface of the first light guide and the boundary. The second layer extends from the second area over the boundary to between a third side surface of the second light guide and the boundary.

公开(公告)号：US09964688B2

公开(公告)日：2018-05-08

申请号：US15349542

申请日：2016-11-11

Applicant: Japan Display Inc.

Inventor： Shinichi Komura ,  Toshihiko Fukuma ,  Youichi Asakawa ,  Ken Onoda

IPC: G02F1/1335 ,  F21V8/00

CPC classification number: G02B6/0056 ,  G02B6/005 ,  G02B6/0051 ,  G02B6/0055 ,  G02F1/133615 ,  G02F1/133617 ,  G02F1/13362 ,  G02F2001/133614 ,  G02F2201/123 ,  G02F2202/36

Abstract: According to one embodiment, a display device includes a light source unit, a light guide unit, a lens, and a light emitting layer. The light source unit emits light to the light guide unit. The lens concentrates the light emitted from the light source unit. The light guide unit guides the light concentrated by the lens toward the light emitting layer. The light guided by the light guide unit is transmitted to the light emission layer without any intervening prism layer.

公开(公告)号：US20180074252A1

公开(公告)日：2018-03-15

申请号：US15700606

申请日：2017-09-11

Applicant: Japan Display Inc.

Inventor： Toshihiko FUKUMA ,  Shinichi Komura ,  Youichi Asakawa ,  Ken Onoda

IPC: F21V8/00

CPC classification number: G02B6/0053 ,  G02B6/002 ,  G02B6/0038 ,  G02B6/0046 ,  G02B6/0055 ,  G02B6/0061 ,  G02B6/0068

Abstract: In one embodiment, an illumination device includes a light guide, a light source and prisms. The light guide has a side surface and first and second main surfaces. The light source emits light to the side surface in a first emission direction. The prisms are provided on the second main surface. The second main surface has first and second areas. The prisms include first prisms in the first area and second prisms in the second area. A first virtual line connecting apexes of the first prisms is inclined with respect to the first main surface. A distance between the second area and the first main surface is greater than a distance between the first area and the first main surface.

公开(公告)号：US09910205B2

公开(公告)日：2018-03-06

申请号：US15363055

申请日：2016-11-29

Applicant: Japan Display Inc.

Inventor： Ken Onoda ,  Shinichi Komura ,  Youichi Asakawa ,  Toshihiko Fukuma

IPC: F21V8/00 ,  G02F1/1335

CPC classification number: G02B6/0031 ,  G02B6/0023 ,  G02B6/0028 ,  G02B6/003 ,  G02B6/0038 ,  G02B6/0056 ,  G02B6/0068 ,  G02F1/133504 ,  G02F1/133512 ,  G02F1/133514 ,  G02F1/133528 ,  G02F1/13362 ,  G02F2001/133562

Abstract: In one embodiment, a light-emitting device includes a light source unit which emits polarized light in a first direction, a bending portion which is irradiated with the polarized light in the first direction and bends the light in a second direction, and a lightguide member which is irradiated with the polarized light caused to bend in the bending portion. The lightguide member comprises an exit surface, bends the polarized light in a third direction, and emits the light through the exit surface. The light source unit includes a first source which emits first light, and a second source which emits second light. The bending portion includes a first incident portion which the first light enters, and a second incident portion which the second light enters.

公开(公告)号：US20150035816A1

公开(公告)日：2015-02-05

申请号：US14449444

申请日：2014-08-01

Applicant: Japan Display Inc.

Inventor： Daiichi SUZUKI ,  Yukio Tanaka ,  Kenji Nakao ,  Kazuhiro Nishiyama ,  Shinichi Komura ,  Shinichiro Oka ,  Mika Oiwa

IPC: G09G3/36

CPC classification number: G09G3/3614 ,  G09G3/3648 ,  G09G2310/0281 ,  G09G2310/06 ,  G09G2320/0247 ,  G09G2330/021 ,  G09G2340/0435

Abstract: According to one embodiment, a lateral electric-field type of liquid crystal display device includes a display panel including a plurality of liquid crystal pixels arranged in a matrix, and a controller configured to perform intermittent driving to rewrite an image signal to the liquid crystal pixels, wherein a frame frequency falls within a range of 10 Hz to 20 Hz, and an absolute value of a flexo coefficient (e11, e33) of a liquid crystal applied to the liquid crystal pixels is 1.6 pC/m or less.

Abstract translation: 根据一个实施例，液晶显示装置的横向电场型包括：显示面板，包括以矩阵形式排列的多个液晶像素;以及控制器，被配置为执行间歇驱动以将图像信号重写到液晶像素 其中帧频落在10Hz至20Hz的范围内，并且施加到液晶像素的液晶的柔性系数（e11，e33）的绝对值为1.6pC / m以下。