公开(公告)号：US10473986B2

公开(公告)日：2019-11-12

申请号：US16212765

申请日：2018-12-07

Applicant: Japan Display Inc.

Inventor： Yasushi Tomioka ,  Noboru Kunimatsu ,  Yosuke Hyodo ,  Toshiki Kaneko ,  Yuko Matsumoto

IPC: G02F1/1339 ,  G02F1/1362 ,  G02F1/1368

Abstract: A liquid crystal display device includes: a TFT substrate having gate lines and data lines arranged thereon, the gate lines extending in a first direction and arranged in a second direction, the data lines extending in the second direction and arranged in the first direction; a counter substrate having a black matrix and a color filter; and liquid crystals put between the TFT substrate and the counter substrate. Columnar spacers are formed on the counter substrate. Pedestals are formed on portions of the TFT substrate, the portions corresponding to the columnar spacers. A convex portion and a concave portion are present at the top end of the columnar spacer. The pedestal is formed corresponding to the concave portion. The concave portion is opened at the ends thereof and connected to the lateral side of the columnar spacer.

公开(公告)号：US09482901B2

公开(公告)日：2016-11-01

申请号：US14840604

申请日：2015-08-31

Applicant: Japan Display Inc.

Inventor： Noboru Kunimatsu ,  Masaki Matsumori ,  Hidehiro Sonoda ,  Yasushi Tomioka ,  Toshiki Kaneko

IPC: G02F1/1337 ,  G02F1/1339 ,  G02F1/1333 ,  G02F1/1362 ,  G02F1/1368

CPC classification number: G02F1/1337 ,  G02F1/1333 ,  G02F1/133345 ,  G02F1/133723 ,  G02F1/13378 ,  G02F1/133788 ,  G02F1/1339 ,  G02F1/13394 ,  G02F1/136286 ,  G02F1/1368

Abstract: The present invention prevents the shaving of an alignment film caused by a columnar spacer in a liquid crystal display device of an IPS method using photo-alignment. A plinth higher than a pixel electrode is formed at a part where a columnar spacer formed over a counter substrate touches a TFT substrate. When an alignment film of a double-layered structure is applied over the pixel electrode and the plinth, the thickness of the alignment film over the plinth reduces by a leveling effect. When photo-alignment is applied in the state, a photodegraded upper alignment film over the plinth disappears and a lower alignment film having a high mechanical strength remains. As a result, it is possible to prevent the shaving of the alignment film.

公开(公告)号：US20150055071A1

公开(公告)日：2015-02-26

申请号：US14532591

申请日：2014-11-04

Applicant: Japan Display Inc.

Inventor： Yosuke Hyodo ,  Koichi Igeta ,  Toshiki Kaneko ,  Noboru Kunimatsu ,  Hidehiro Sonoda

IPC: G02F1/1339 ,  G02F1/1368 ,  G02F1/1341

CPC classification number: G02F1/13394 ,  G02F1/133371 ,  G02F1/13378 ,  G02F1/1339 ,  G02F1/1341 ,  G02F1/1368 ,  G02F2001/13398 ,  G02F2001/13415 ,  G02F2201/50

Abstract: A display device includes a first substrate, a second substrate and liquid crystals therebetween, the first substrate having a flat portion, an alignment film, and a concavo-convex pedestal formed in a pixel region, wherein the concavo-convex pedestal having at least two convex portions and recessed portions, and the at least two convex portions of the concavo-convex pedestal are at a position lower than a position of the flat portion. A thickness of the alignment film on the convex portions is less than a thickness of the alignment film on the recessed portions, and a second substrate has a columnar spacer which contacts the at least two convex portions of the concavo-convex pedestal.

Abstract translation: 显示装置包括第一基板，第二基板和它们之间的液晶，第一基板具有平坦部分，取向膜和形成在像素区域中的凹凸基座，其中所述凹凸基座具有至少两个 凸部和凹部，凹凸台的至少两个凸部位于比平坦部的位置低的位置。 凸部上的取向膜的厚度小于凹部上的取向膜的厚度，第二基板具有与凹凸台的至少两个凸部接触的柱状间隔件。

公开(公告)号：US20140247416A1

公开(公告)日：2014-09-04

申请号：US14278795

申请日：2014-05-15

Applicant: Japan Display Inc.

Inventor： Yosuke Hyodo ,  Koichi Igeta ,  Toshiki Kaneko ,  Noboru Kunimatsu ,  Hidehiro Sonoda

IPC: G02F1/1339

CPC classification number: G02F1/13394 ,  G02F1/133371 ,  G02F1/13378 ,  G02F1/1339 ,  G02F1/1341 ,  G02F1/1368 ,  G02F2001/13398 ,  G02F2001/13415 ,  G02F2201/50

Abstract: A display device includes a first substrate having organic and alignment films, a second substrate adhered to the first substrate by a sealant which surrounds a pixel region, a columnar spacer formed on the second substrate defining a distance between the first substrate and the second substrate, and a recessed portion formed in the organic film of the pixel region, the recessed portion facing to the columnar spacer. The recessed portion has a convex portion at a bottom of the recessed portion, and a height of a top of the convex portion from the first substrate is lower than a height of an upper surface of the organic film from the first substrate. A thickness of an alignment film on the convex portion is smaller than a thickness of the bottom of the recessed portion, and a top of the columnar spacer is in contact with the convex portion.

Abstract translation: 显示装置包括具有有机和取向膜的第一基板，通过围绕像素区域的密封剂粘附到第一基板的第二基板，形成在第二基板上的形成在第一基板和第二基板之间的距离的柱状间隔件， 以及形成在像素区域的有机膜中的凹部，凹部与柱状间隔物相对。 凹部在凹部的底部具有凸部，凸部的与第一基板的顶部的高度比第一基板的有机薄膜的上表面的高度低。 凸部上的取向膜的厚度小于凹部的底部的厚度，柱状间隔件的顶部与凸部接触。

公开(公告)号：US08735901B2

公开(公告)日：2014-05-27

申请号：US13946700

申请日：2013-07-19

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

Inventor： Hideo Tanabe ,  Masaru Takabatake ,  Toshiki Kaneko ,  Atsushi Hasegawa ,  Hiroko Sehata

IPC: H01L27/14

CPC classification number: G02F1/133345 ,  G02F1/133305 ,  G02F1/133504 ,  G02F1/133555 ,  G02F1/134363 ,  G02F1/136213 ,  G02F1/136227 ,  G02F1/1368 ,  G02F2001/13685 ,  H01L27/124 ,  H01L27/1248 ,  H01L29/78675

Abstract: A LCD device having a large pixel holding capacitance includes opposedly facing first and second substrates, and liquid crystal between them. The first substrate includes a video signal line, a pixel electrode, a thin film transistor having a first electrode connected to the video signal line and a second electrode connected to the pixel electrode, a first silicon nitride film formed above the second electrode, an organic insulation film above the first silicon nitride film, a capacitance electrode above the organic insulation film, and a second silicon nitride film above the capacitance electrode and below the pixel electrode. A contact hole etched in both the first and second silicon nitride films connects the second electrode and the pixel electrode to each other. A holding capacitance is formed by the pixel electrode, the second silicon nitride film and the capacitance electrode.

Abstract translation: 具有大像素保持电容的LCD装置包括相对的第一和第二基板以及它们之间的液晶。 第一基板包括视频信号线，像素电极，具有连接到视频信号线的第一电极的薄膜晶体管和连接到像素电极的第二电极，形成在第二电极上方的第一氮化硅膜，有机物 第一氮化硅膜上方的绝缘膜，有机绝缘膜上方的电容电极，以及电容电极上方和像素电极下方的第二氮化硅膜。 在第一和第二氮化硅膜中蚀刻的接触孔将第二电极和像素电极彼此连接。 保持电容由像素电极，第二氮化硅膜和电容电极形成。

公开(公告)号：US11982900B2

公开(公告)日：2024-05-14

申请号：US18168087

申请日：2023-02-13

Applicant: Japan Display Inc.

Inventor： Akio Takimoto ,  Toshiki Kaneko ,  Takuo Kaitoh ,  Kazuhiro Nishiyama ,  Hiroyuki Kimura

IPC: G02F1/1335 ,  G02F1/1333

CPC classification number: G02F1/133553 ,  G02F1/13338 ,  G02F1/133514 ,  G02F1/133524 ,  G02F1/133528

Abstract: According to one embodiment, an electronic apparatus includes a camera, a liquid crystal panel including a display portion overlaid on the camera, a light guide having a first side surface and a main surface opposed to the liquid crystal panel and a first through hole, and a light source opposed to the first side surface. The camera is provided in the first through hole.

公开(公告)号：US11914258B2

公开(公告)日：2024-02-27

申请号：US18148072

申请日：2022-12-29

Applicant: Japan Display Inc.

Inventor： Akio Takimoto ,  Toshiki Kaneko ,  Takuo Kaitoh ,  Kazuhiro Nishiyama ,  Hiroyuki Kimura

IPC: G09G3/36 ,  G02F1/137 ,  F21V8/00 ,  G02F1/1335 ,  H04N23/57

CPC classification number: G02F1/137 ,  G02B6/0055 ,  G02F1/133528 ,  G09G3/36 ,  H04N23/57 ,  G09G2360/145

Abstract: According to one embodiment, an electronic apparatus includes a camera, a first polarizer, a second polarizer, a liquid crystal panel, and a controller controlling the liquid crystal panel. The liquid crystal panel includes a first region and a second region. The controller controls a first opening mode of transmitting light through the first region and the second region, and a second opening mode of making a quantity of light transmitted through the first region smaller than a quantity of light transmitted through the second region.

公开(公告)号：US11681184B2

公开(公告)日：2023-06-20

申请号：US17841712

申请日：2022-06-16

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

Inventor： Shoichi Uchino ,  Noboru Kunimatsu ,  Hidehiro Sonoda ,  Chikae Matsui ,  Yuko Matsumoto ,  Tomio Yaguchi ,  Toshiki Kaneko ,  Jun Tanaka

IPC: G03F7/30 ,  G03F7/36 ,  G02F1/1337 ,  G02F1/13 ,  G02F1/1333 ,  C09D179/08 ,  C08G73/10

CPC classification number: G02F1/133788 ,  G03F7/30 ,  G03F7/36 ,  C08G73/1078 ,  C09D179/08 ,  C09K2323/027 ,  G02F1/1316 ,  G02F1/133354

Abstract: Disclosed is a manufacturing method of a liquid crystal display device which is a manufacturing method of a liquid crystal display device including a liquid crystal alignment film to which an alignment regulating force is imparted by a photo-alignment treatment, including: a film forming step of forming a film containing a polymer whose main chain is cleaved by irradiation with light; a photo-alignment step of imparting an alignment regulating force to the film formed in the film forming step by irradiation of the film with light in an atmosphere of a temperature lower than 100° C.; and a removing step of removing a low-molecular weight component generated by cleaving the main chain of the polymer through the light irradiation after the light irradiation. Also disclosed is a liquid crystal display device manufactured by the manufacturing method.

公开(公告)号：US10288945B2

公开(公告)日：2019-05-14

申请号：US15806478

申请日：2017-11-08

Applicant: Japan Display Inc.

Inventor： Takenori Hirota ,  Yasuhiro Kanaya ,  Hidehiro Sonoda ,  Toshiki Kaneko

IPC: G02F1/1333 ,  G02F1/1339

Abstract: A reliability of seal portion of a liquid crystal display device can be improved by the following structure. A liquid crystal display device includes: a TFT substrate which includes a display region and a terminal part, and has an inorganic insulating film formed on an organic passivation film and an alignment film formed over the inorganic insulating film; a counter substrate, the TFT substrate and the counter substrate bonded together by a sealing material formed at a seal part surrounding the display region; and a liquid crystal sealed inside. At the seal part, a transparent conductive oxide film is formed between the inorganic insulating film and the alignment film. The transparent conductive oxide film exists inside an edge of the TFT substrate and hence, the edge of the TFT substrate is free of the transparent conductive oxide film.

公开(公告)号：US10133103B2

公开(公告)日：2018-11-20

申请号：US15680868

申请日：2017-08-18

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

Inventor： Hideo Tanabe ,  Masaru Takabatake ,  Toshiki Kaneko ,  Atsushi Hasegawa ,  Hiroko Sehata

IPC: G02F1/1333 ,  H01L29/786 ,  H01L27/12 ,  G02F1/1362 ,  G02F1/1335 ,  G02F1/1343 ,  G02F1/1368

Abstract: A LCD device having a large pixel holding capacitance includes opposedly facing first and second substrates, and liquid crystal between them. The first substrate includes a video signal line, a pixel electrode, a thin film transistor having a first electrode connected to the video signal line and a second electrode connected to the pixel electrode, a first silicon nitride film formed above the second electrode, an organic insulation film above the first silicon nitride film, a capacitance electrode above the organic insulation film, and a second silicon nitride film above the capacitance electrode and below the pixel electrode. A contact hole etched in both the first and second silicon nitride films connects the second electrode and the pixel electrode to each other. A holding capacitance is formed by the pixel electrode, the second silicon nitride film and the capacitance electrode.