公开(公告)号：US20170363914A1

公开(公告)日：2017-12-21

申请号：US15696357

申请日：2017-09-06

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

Inventor： Noboru KUNIMATSU ,  Chikae MATSUI ,  Hidehiro SONODA ,  Yuko MATSUMOTO ,  Shoichi UCHINO ,  Masaki MATSUMORI ,  Yasushi TOMIOKA

IPC: G02F1/1337 ,  C09K19/56 ,  G02F1/1343 ,  H01L27/12 ,  G02F1/1368

CPC classification number: G02F1/133723 ,  C09K19/56 ,  G02F1/133711 ,  G02F1/133788 ,  G02F1/134363 ,  G02F1/1368 ,  H01L27/1262 ,  H01L27/1296 ,  Y10T428/10 ,  Y10T428/1005

Abstract: A liquid crystal display device includes a TFT substrate having a first alignment film and an opposing substrate having a second alignment film with liquid crystals sandwiched therebetween. One of the first and second alignment films, comprises a first polyimide produced via polyamide acid ester containing cyclobutane as a precursor and a second polyimide produced via polyamide acid as a precursor. The polyamide acid has a higher polarity than that of the polyamide acid ester. The one of the first and second alignment films is responsive to photo-alignment. A first side of the one of the first and second alignment films is adjacent to the liquid crystals, and a second side thereof is closer to one of the TFT substrate and the counter substrate than the first side. The first side contains more of the first polyimide and less of the second polyimide than the second side.

公开(公告)号：US20170075179A1

公开(公告)日：2017-03-16

申请号：US15343329

申请日：2016-11-04

Applicant: Japan Display Inc.

Inventor： Yasushi TOMIOKA ,  Toshimasa ISHIGAKI ,  Hidehiro SONODA ,  Sumito UETA

IPC: G02F1/1362 ,  G02F1/1335 ,  G02F1/1337 ,  G02F1/1333 ,  G02F1/1368

CPC classification number: G02F1/136227 ,  G02F1/133345 ,  G02F1/133512 ,  G02F1/1337 ,  G02F1/133707 ,  G02F1/1368 ,  G02F2001/133357 ,  G02F2201/121 ,  G02F2201/123

Abstract: A liquid crystal display device comprising a TFT substrate having pixels each including a common electrode formed on an organic passivation film, an interlayer insulating film formed so as to cover the common electrode, a pixel electrode having a slit and formed on the interlayer insulating film, a through-hole formed in the organic passivation film and the interlayer insulating film, and a source electrode electrically conducted to the pixel electrode via the through-hole. A taper angle at a depth of D/2 of the through-hole is equal to or more than 50 degrees. The pixel electrode covers part of a side wall of the through-hole but does not cover the remaining part of the side wall of the through-hole. This configuration facilitates the alignment film material to flow into the through-hole, thereby solving a thickness unevenness of the alignment film in vicinity of the through-hole.

Abstract translation: 一种液晶显示装置，包括具有各自包括形成在有机钝化膜上的公共电极的像素的TFT基板，形成为覆盖公共电极的层间绝缘膜，形成在层间绝缘膜上的狭缝的像素电极， 在有机钝化膜和层间绝缘膜中形成的通孔以及通过该通孔向像素电极导电的源电极。 通孔深度D / 2处的锥角等于或大于50度。 像素电极覆盖通孔的侧壁的一部分，但不覆盖通孔的侧壁的剩余部分。 该结构使得取向膜材料流入通孔，从而解决了通孔附近的取向膜的厚度不均匀性。

公开(公告)号：US20160085119A1

公开(公告)日：2016-03-24

申请号：US14858821

申请日：2015-09-18

Applicant: Japan Display Inc.

Inventor： Takenori HIROTA ,  Yosuke HYODO ,  Noboru KUNIMATSU ,  Yasushi TOMIOKA ,  Hidehiro SONODA

IPC: G02F1/1337

CPC classification number: G02F1/133788 ,  G02F1/133719 ,  G02F1/133723 ,  G02F2001/13712

Abstract: A liquid crystal display device including an alignment film which has been optically aligned is configured that the liquid crystal has negative dielectric anisotropy, an absolute value of which is equal to or smaller than 5. The alignment film is subjected to an optical alignment process to exhibit the optical alignment property, and includes a first film located at a side in contact with the liquid crystal, and a second film below the first film, which is not optically aligned to have no alignment property. The alignment film is formed by applying a mixture of a first material for forming the first film and a second material for forming the second film to the substrate. The first material for the alignment film accounts for 10 wt. % or more and less than 40 wt. % of a total weight of the first and the second materials.

Abstract translation: 具有光学取向的取向膜的液晶显示装置构成为，液晶具有负的介电各向异性，其绝对值在5以下。对取向膜进行光取向处理， 光学取向性，并且包括位于与液晶接触的一侧的第一膜和在第一膜下面的第二膜，其不被光学对准以不具有取向性。 通过将用于形成第一膜的第一材料和用于形成第二膜的第二材料的混合物施加到基板上来形成取向膜。 用于取向膜的第一种材料占10wt。 ％以上且小于40重量％ 第一和第二材料的总重量的百分比。

公开(公告)号：US20150370102A1

公开(公告)日：2015-12-24

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 ,  G02F1/1368 ,  G02F1/1362

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：US20150140709A1

公开(公告)日：2015-05-21

申请号：US14603334

申请日：2015-01-22

Applicant: JAPAN DISPLAY INC. ,  PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.

Inventor： Noboru KUMIMATSU ,  Chikae MATSUI ,  Hidehiro SONODA ,  Yuko MATSUMOTO ,  Shoichi UCHINO ,  Masaki MATSUMORI ,  Yasushi TOMIOKA

IPC: G02F1/1337 ,  H01L27/12

CPC classification number: G02F1/133723 ,  C09K19/56 ,  G02F1/133711 ,  G02F1/133788 ,  G02F1/134363 ,  G02F1/1368 ,  H01L27/1262 ,  H01L27/1296 ,  Y10T428/10 ,  Y10T428/1005

Abstract: A method for fabricating a liquid crystal display device including a TFT substrate having an alignment film formed thereon, an opposing substrate, and a liquid crystal layer sandwiched therebetween. The alignment film on the TFT substrate includes a photolytic polymer made from a first precursor including cyclobutane, and a non-photolytic polymer made from a second precursor. The method includes the steps of depositing a mixture material including the first precursor and the second precursor in which the second precursor settles more on an upper surface of the TFT substrate than the first precursor, imidizing the mixture material, and irradiating the mixture material with ultraviolet light for photo-alignment, and after irradiating, heating the mixture material to form the alignment film.

Abstract translation: 一种制造液晶显示装置的方法，该液晶显示装置包括其上形成有取向膜的TFT基板，相对基板和夹在其间的液晶层。 TFT基板上的取向膜包括由包含环丁烷的第一前体制成的光解聚合物和由第二前体制成的非光解聚合物。 该方法包括以下步骤：将包含第一前体和第二前体的混合材料沉积在第二前体中，其中第二前体比第一前体沉淀在TFT基板的上表面上，对混合物进行酰亚胺化，并用紫外线照射混合材料 用于光取向的光，并且在照射之后，加热混合物材料以形成取向膜。

公开(公告)号：US20150116623A1

公开(公告)日：2015-04-30

申请号：US14527841

申请日：2014-10-30

Applicant: Japan Display Inc.

Inventor： Yasushi TOMIOKA ,  Yosuke HYODO ,  Hidehiro SONODA ,  Noboru KUNIMATSU

IPC: G02F1/1362 ,  G02F1/1368

CPC classification number: G02F1/134363 ,  G02F1/133345 ,  G02F1/133512 ,  G02F1/133514 ,  G02F1/133788 ,  G02F1/136227 ,  G02F1/1368 ,  G02F2202/02 ,  H01L27/1218

Abstract: In a liquid crystal display device, a common electrode is formed on an organic passivation film, an interlayer insulating film is formed on the common electrode, a pixel electrode with a slit is formed on the interlayer insulating film, and a through hole is formed in the organic passivation film and the interlayer insulating film, so that the pixel electrode is connected to a source electrode of a TFT through the through hole. Further, the taper angle around the upper base of the through hole is smaller than the taper angle around the lower base. Thus, the alignment film material can easily flow into the through hole when the diameter of the through hole is reduced to connect the pixel and source electrodes, preventing display defects such as uneven brightness due to the absence of the alignment film or due to the alignment film irregularity around the through hole.

Abstract translation: 在液晶显示装置中，在有机钝化膜上形成公共电极，在公共电极上形成层间绝缘膜，在层间绝缘膜上形成有狭缝的像素电极，并且形成通孔 有机钝化膜和层间绝缘膜，使得像素电极通过通孔连接到TFT的源电极。 此外，贯通孔的上基板周围的锥角小于下基板周围的锥角。 因此，当通孔的直径减小时，取向膜材料可以容易地流入通孔，以连接像素和源电极，防止由于不存在取向膜或由于取向而导致的不均匀亮度的显示缺陷 围绕通孔的膜不规则。

公开(公告)号：US20150098048A1

公开(公告)日：2015-04-09

申请号：US14508277

申请日：2014-10-07

Applicant: Japan Display Inc.

Inventor： Yasushi TOMIOKA ,  Takato HIRATSUKA ,  Osamu ITOU

IPC: G02F1/1339 ,  G02F1/1335

CPC classification number: G02F1/134363 ,  G02F1/133345 ,  G02F1/133512 ,  G02F1/133514 ,  G02F1/1337 ,  G02F1/13394 ,  G02F1/13439 ,  G02F1/13624 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2001/133302 ,  G02F2001/13398 ,  G02F2001/134345 ,  G02F2201/121 ,  G02F2201/123 ,  G02F2203/04 ,  H01L27/124

Abstract: A liquid crystal display device includes a TFT substrate, a CF substrate, and a liquid crystal interposed between the TFT substrate and the CF substrate, and drives the liquid crystal in a horizontal electric field. The TFT substrate includes a recess, and the CF substrate includes a columnar protrusion. The protrusion of the CF substrate is fitted to the recess of the TFT substrate so as to function as a stopper for preventing a positional gap between the TFT substrate and the CF substrate.

Abstract translation: 液晶显示装置包括TFT基板，CF基板和介于TFT基板和CF基板之间的液晶，并且在水平电场中驱动液晶。 TFT基板包括凹部，CF基板包括柱状突起。 CF基板的突出部配合在TFT基板的凹部，作为防止TFT基板与CF基板的位置间隙的止动件。

公开(公告)号：US20150062520A1

公开(公告)日：2015-03-05

申请号：US14475845

申请日：2014-09-03

Applicant: Japan Display Inc.

Inventor： Masaki MATSUMORI ,  Shuuji IMAZEKI ,  Yasushi TOMIOKA ,  Noboru KUNIMATSU

IPC: G02F1/1337

CPC classification number: G02F1/133723 ,  B32B2457/202 ,  C08G73/16 ,  C08G2150/00 ,  C09D179/08 ,  G02F1/133788 ,  G02F1/134363 ,  G02F1/1368 ,  Y10T428/10 ,  Y10T428/1005

Abstract: Various layer separation states are generated by the combination of a polyamide acid ester and a polyamide acid and a long residual image characteristic cannot be further improved merely by combining them. A liquid crystal display device comprises a substrate, a liquid crystal layer, and an orientation film placed between the substrate and the liquid crystal layer. The orientation film comprises a polyimide precursor having two or more components. In the polyimide precursor, an octanol-water partition coefficient is defined as log P and the difference in log P (Δ log P) between the two components having most distant log Ps is set so as to fall within a prescribed range.

Abstract translation: 通过聚酰胺酸酯和聚酰胺酸的组合产生各种层分离状态，仅通过组合它们就不能进一步提高长残留图像特性。 液晶显示装置包括基板，液晶层和位于基板和液晶层之间的取向膜。 取向膜包括具有两种或更多种成分的聚酰亚胺前体。 在聚酰亚胺前体中，将辛醇 - 水分配系数定义为log P，将具有最远距离log Ps的两个成分之间的log P（＆Dgr; log P）的差设定为规定范围。

公开(公告)号：US20140009711A1

公开(公告)日：2014-01-09

申请号：US13930112

申请日：2013-06-28

Applicant: Japan Display Inc.

Inventor： Yasushi TOMIOKA ,  Chikae MATSUI ,  Noboru KUNIMATSU ,  Hidehiro SONODA

IPC: G02F1/1343

CPC classification number: G02F1/134363 ,  G02F1/133371 ,  G02F1/13378 ,  G02F1/13394 ,  G02F2001/13373 ,  G02F2001/133776 ,  G02F2001/134318 ,  G02F2001/134381 ,  G02F2001/13606 ,  G02F2201/124 ,  G02F2201/40

Abstract: A liquid crystal display device in a lateral electric field mode includes: a metal wiring formed on a transparent substrate; an inorganic insulating film and an organic insulating film formed on the metal wiring; and a first transparent electrode and a second transparent electrode formed on the inorganic insulating film and the organic insulating film so that the first and the second transparent electrodes are opposite to each other through an interlayer insulating film. The film thickness of the organic insulating film on the metal wiring is made thicker than the film thickness of the organic insulating film inside a pixel display region including the contact hole, and a projecting portion of the organic insulating film is formed on the metal wiring. A pixel electrode formed of the first electrode or the second electrode is formed on an image display region including a slope portion of the projecting portion.

Abstract translation: 一种横向电场模式的液晶显示装置包括：形成在透明基板上的金属布线; 无机绝缘膜和形成在金属布线上的有机绝缘膜; 以及形成在无机绝缘膜和有机绝缘膜上的第一透明电极和第二透明电极，使得第一和第二透明电极通过层间绝缘膜彼此相对。 使金属布线上的有机绝缘膜的膜厚比包含接触孔的像素显示区域内的有机绝缘膜的膜厚更厚，在金属布线上形成有机绝缘膜的突出部。 由第一电极或第二电极形成的像素电极形成在包括突出部分的斜面部分的图像显示区域上。

公开(公告)号：US20250107428A1

公开(公告)日：2025-03-27

申请号：US18973592

申请日：2024-12-09

Applicant: Japan Display Inc.

Inventor： Yasushi TOMIOKA ,  Akio TAKIMOTO

IPC: H10K85/10 ,  G06F3/042 ,  H10K30/87

Abstract: A method for manufacturing a photoelectric conversion element according to an aspect includes an active layer forming step of forming an active layer having a repeating unit represented by Chemical Formula 1. The active layer forming step includes: a first layer forming step of forming a first layer by applying polyamic acid serving as a precursor; a first heating step of heating the first layer at 120° C. for 20 minutes to 60 minutes; and a second heating step of heating the first layer at 230° C. to 280° C. for 10 minutes.