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    Display device having curved high and low refractive index layers
    1.
    发明授权
    Display device having curved high and low refractive index layers 有权

    公开(公告)号：US11670747B2

    公开(公告)日：2023-06-06

    申请号：US17034837

    申请日：2020-09-28

    Applicant: Japan Display Inc.

    Inventor： Osamu Itou

    IPC: H01L33/58 ,  G02B5/02 ,  H01L27/12 ,  H01L25/075 ,  G09G3/32

    CPC classification number: H01L33/58 ,  G02B5/0236 ,  G02B5/0263 ,  H01L25/0753 ,  H01L27/1214 ,  G09G3/32 ,  G09G2310/0267 ,  H01L2933/0091

    Abstract: According to an aspect, a display device includes: a substrate; a plurality of pixels provided to the substrate; a plurality of light emitting elements provided to the pixels; and a first light diffusion layer including a plurality of light diffusion structures and having a first surface and a second surface opposite to the first surface, the second surface facing the substrate with the light emitting elements interposed between the second surface and the substrate. The light diffusion structures each include a plurality of high refractive index layers and a plurality of low refractive index layers. The high refractive index layers and the low refractive index layers are alternately layered in a thickness direction of the first light diffusion layer. The high refractive index layers and the low refractive index layers are each curved and recessed in a direction from the first surface toward the second surface.

    Liquid crystal display device
    3.
    发明授权
    Liquid crystal display device 有权

    公开(公告)号：US10108056B2

    公开(公告)日：2018-10-23

    申请号：US15651220

    申请日：2017-07-17

    Applicant: Japan Display Inc.

    Inventor： Hidetatsu Nakamura ,  Osamu Itou ,  Takeshi Sakai

    IPC: G02F1/1343 ,  G02F1/1333 ,  G02F1/1362

    Abstract: A pixel electrode is configured of one comb tooth portion and a contact portion whose width is widened from the end portion of the comb tooth portion in a first direction that is the extending direction of a scanning line. The width of the contact portion is not expanded in a direction opposite to the first direction, and the production of a domain is prevented. A picture signal line is bent in the direction in which the width of the contact portion of the pixel electrode is widened, so that the comb tooth portion of the pixel electrode can be disposed in the center between the picture signal lines, and the width of the contact portion can be formed in a sufficient width in the direction in which the picture signal line is bent. Thus, the contact margin of the pixel electrode can be provided.

    Liquid crystal display device
    5.
    发明授权
    Liquid crystal display device 有权

    公开(公告)号：US09690131B2

    公开(公告)日：2017-06-27

    申请号：US14967868

    申请日：2015-12-14

    Applicant: Japan Display Inc.

    Inventor： Osamu Itou ,  Kenji Nakao ,  Toshimasa Ishigaki ,  Masahiro Kosuge

    IPC: G02F1/1335 ,  G02F1/1362

    CPC classification number: G02F1/133502 ,  G02F1/136286

    Abstract: The elution of a color filter to a liquid crystal layer is reduced. A liquid crystal display device includes an active device substrate, a liquid crystal layer provided on the active device substrate, and a counter substrate provided on the liquid crystal layer. The active device substrate includes an active device, a common electrode, a common interconnection electrically connected to the common electrode, a reflection reduction film provided on the common interconnection, a first insulating layer provided on the reflection reduction film, and a pixel electrode having a flat portion provided on the first insulating layer and a first projecting portion protruding downwardly. The first the projecting portion is electrically connected to the active device.

    Liquid crystal display device
    6.
    发明授权
    Liquid crystal display device 有权
    液晶显示装置

    公开(公告)号：US09316874B2

    公开(公告)日：2016-04-19

    申请号：US14065457

    申请日：2013-10-29

    Applicant: Japan Display Inc.

    Inventor： Takato Hiratsuka ,  Osamu Itou ,  Daisuke Sonoda ,  Toshimasa Ishigaki

    IPC: G02F1/1343 ,  G02F1/1337

    CPC classification number: G02F1/134363 ,  G02F1/133707 ,  G02F2201/40 ,  G02F2203/30

    Abstract: A liquid crystal display device has a pair of wall electrodes facing each other, which is disposed on pixels on a first substrate, functions as one of pixel electrodes and a common electrode, and takes a posture of standing on the first substrate. Also, the liquid crystal display device has a center electrode that is disposed between the pair of wall electrodes, functions as the other of the pixel electrodes and the common electrode, has a convexity lower in height than the pair of wall electrodes, and makes a width in a direction along which the pair of wall electrodes faces each other gradually smaller toward the second substrate. According to this liquid crystal display device, since a vertical electric field can be prevented from being developed on an upper side of the center electrode, a transmittance of light can be improved.

    Abstract translation: 液晶显示装置具有彼此面对的一对壁电极，其设置在第一基板上的像素上，用作像素电极和公共电极之一，并且在第一基板上具有站立姿态。 此外，液晶显示装置具有设置在一对壁电极之间的中心电极，作为像素电极和公共电极中的另一个具有比一对壁电极高的凸度，并且使 一对壁电极彼此面对的方向上的宽度朝向第二基板逐渐变小。 根据该液晶显示装置，由于可以防止在中心电极的上侧显示垂直电场，所以可以提高光的透射率。

    Liquid crystal display device
    8.
    发明授权
    Liquid crystal display device 有权
    液晶显示装置

    公开(公告)号：US08928847B2

    公开(公告)日：2015-01-06

    申请号：US13790590

    申请日：2013-03-08

    Applicant: Japan Display Inc.

    Inventor： Takato Hiratsuka ,  Osamu Itou ,  Masanao Yamamoto ,  Daisuke Sonoda

    IPC: G02F1/1343 ,  G02F1/1339 ,  G02F1/1333 ,  G02F1/1337

    CPC classification number: G02F1/134363 ,  G02F1/133377 ,  G02F1/133707

    Abstract: The liquid crystal display device includes a pixel structure provided with a large wall formed along a long side of a pixel with a rectangular plane, a small wall formed at a center of the pixel and extending in the same direction as the large wall, a wall electrode formed on a wall surface of the large wall, a plane electrode formed between the small and large walls, in which the wall electrode and the plane electrode form a pixel electrode, and a common electrode formed on a surface of the small wall. The large wall has a part with an increased thickness at an end part of the pixel. The wall electrode is bent toward the center of the pixel. This structure prevents decrease of reverse twist of liquid crystal at an end part of the pixel as well as generation of domain, thus improving transmittance of the screen.

    Abstract translation: 该液晶显示装置包括像素结构，该像素结构设置有沿着像素的长边形成的具有矩形平面的大壁，形成在像素的中心并沿与大壁相同的方向延伸的小壁，壁 形成在大壁的壁面上的电极，形成在小壁和大壁之间的平面电极，其中壁电极和平面电极形成像素电极，以及形成在小壁表面上的公共电极。 大壁部在像素的端部具有增加的厚度部分。 壁电极朝向像素的中心弯曲。 该结构可以防止像素的端部处的液晶的反向扭转的减少以及畴的产生，从而提高了屏幕的透射率。

    Display device
    10.
    发明授权
    Display device 有权

    公开(公告)号：US11614665B2

    公开(公告)日：2023-03-28

    申请号：US17159404

    申请日：2021-01-27

    Applicant: Japan Display Inc.

    Inventor： Osamu Itou

    IPC: G02F1/1343 ,  G02F1/1362

    Abstract: According to one embodiment, a display device includes a first substrate, a second substrate opposed to the first substrate, and a liquid crystal layer provided between the first substrate and the second substrate. The first substrate includes a first signal line and a second signal line and being adjacent to each other in a first direction, a first scanning line and a second scanning line and being adjacent to each other in a second direction intersecting the first direction, a semiconductor layer connected to the first signal line and the first scanning line, a first transparent electrode in contact with the semiconductor layer, an organic insulating layer including a contact hole, and a second transparent electrode in contact with the first transparent electrode.

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