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公开(公告)号：US20160282647A1
公开(公告)日：2016-09-29
申请号：US15076194
申请日：2016-03-21
Applicant: Japan Display Inc.
Inventor： Noboru KUNIMATSU , Toshiyuki HIGANO , Midori TSUKANE , Kazuhiro NISHIYAMA
IPC: G02F1/1339 , G02F1/1337
CPC classification number: G02F1/1339 , G02F1/1337 , G02F1/13394 , G02F2001/13396 , G02F2001/13398
Abstract: According to one embodiment, a liquid crystal display device includes a first substrate, a second substrate, a liquid crystal layer, a first alignment film, and a sealant, wherein the first alignment film is an optical alignment film, the sealant includes an epoxy resin not having an acrylate skeleton and a resin having an acrylate skeleton, a storage elastic modulus of the sealant is greater than or equal to 1.0×107 Pa and less than or equal to 1.5×109 Pa, and at least a part of the sealant is in contact with the first alignment film.
Abstract translation: 根据一个实施例，液晶显示装置包括第一基板，第二基板，液晶层，第一取向膜和密封剂，其中第一取向膜是光学取向膜，密封剂包括环氧树脂 不具有丙烯酸酯骨架和具有丙烯酸酯骨架的树脂，密封剂的储能弹性模量大于或等于1.0×10 7 Pa且小于或等于1.5×10 9 Pa，并且至少一部分密封剂为 与第一取向膜接触。
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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。
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公开(公告)号：US20160011465A1
公开(公告)日：2016-01-14
申请号：US14863100
申请日：2015-09-23
Inventor： Noboru KUNIMATSU , Chikae Matsui , Hidehiro Sonoda , Yuko Matsumoto , Shoichi Uchino , Masaki Matsumori , Yasushi Tomioka
IPC: G02F1/1337 , G02F1/1343 , C09K19/56 , 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.
Abstract translation: 液晶显示装置包括具有第一取向膜的TFT基板和具有夹在其间的液晶的第二取向膜的相对基板。 第一和第二取向膜之一包括通过含有环丁烷作为前体的聚酰胺酸酯制备的第一聚酰亚胺和通过聚酰胺酸作为前体制备的第二聚酰亚胺。 聚酰胺酸的极性比聚酰胺酸酯高。 第一和第二取向膜中的一个对光取向有反应。 第一和第二取向膜中的一个的第一侧与液晶相邻，并且第二侧比第一侧更靠近TFT基板和对向基板中的一个。 第一侧包含比第二侧更多的第一聚酰亚胺和更少的第二聚酰亚胺。
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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.
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公开(公告)号：US20150309372A1
公开(公告)日：2015-10-29
申请号：US14738369
申请日：2015-06-12
Inventor： Hidehiro SONODA , Chikae MATSUI , Noboru KUNIMATSU
IPC: G02F1/1337 , G02F1/1339 , G02F1/1368 , G02F1/1343 , G02F1/1333
CPC classification number: G02F1/133711 , G02F1/133345 , G02F1/133514 , G02F1/1337 , G02F1/133719 , G02F1/133723 , G02F1/133788 , G02F1/1339 , G02F1/13394 , G02F1/134309 , G02F1/13439 , G02F1/136286 , G02F1/1368 , G02F2001/133519 , G02F2201/121 , G02F2201/123
Abstract: A liquid crystal display device includes a first substrate, a first alignment film formed over the first substrate, a second substrate, a second alignment film formed over the second substrate, a liquid crystal layer sandwiched between the first alignment film and the second alignment film, and a projecting portion formed over the second substrate. The first alignment film is a photo alignment film, and a thickness “d2” of the second alignment film over the projecting portion and a film thickness “d1” of a portion of the first alignment film facing the projecting portion satisfy formula (1) and (2): 0 nm
Abstract translation: 液晶显示装置包括第一基板，形成在第一基板上的第一取向膜，第二基板，形成在第二基板上的第二取向膜，夹在第一取向膜和第二取向膜之间的液晶层， 以及形成在所述第二基板上的突出部。 第一取向膜是光取向膜，突出部分上的第二取向膜的厚度“d2”和第一取向膜的与突出部分相对的部分的膜厚“d1”满足式（1）和 （2）：0nm
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Patent Agency Ranking
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。
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公开(公告)号：US20150085231A1
公开(公告)日：2015-03-26
申请号：US14557581
申请日：2014-12-02
Inventor： Hidehiro SONODA , Chikae MATSUI , Noboru KUNIMATSU , Yuko MATSUMOTO
IPC: G02F1/1337 , G02F1/1333 , G02F1/1335
CPC classification number: G02F1/1337 , G02F1/133345 , G02F1/133514 , G02F1/133788 , G02F1/134363 , G02F1/13439
Abstract: A liquid crystal display device has a liquid crystal display panel including pixels each having an active device, a pixel electrode, a common electrode and a liquid crystal layer arranged in a dot matrix array. The liquid crystal display panel has a first substrate, a second substrate, and a liquid crystal layer provided between the first substrate and the second substrate. The first substrate has the active device, the pixel electrode, the common electrode and a first alignment film. The second substrate has a second alignment film. The first alignment film and the second alignment film are respectively a photo alignment film formed by irradiating a photo decomposition type insulating film with light. The second alignment film has a thickness of at least 10 nm and no greater 50 nm and is thinner than the first alignment film.
Abstract translation: 液晶显示装置具有液晶显示面板，其具有各自具有排列成点阵列的有源器件，像素电极，公共电极和液晶层的像素。 液晶显示面板具有第一基板，第二基板和设置在第一基板和第二基板之间的液晶层。 第一基板具有有源器件，像素电极，公共电极和第一取向膜。 第二基板具有第二取向膜。 第一取向膜和第二取向膜分别是通过用光照射光分解型绝缘膜而形成的光取向膜。 第二取向膜的厚度为至少10nm且不大于50nm，并且比第一取向膜薄。
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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。
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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。
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公开(公告)号：US20220326577A1
公开(公告)日：2022-10-13
申请号：US17841712
申请日：2022-06-16
Inventor： Shoichi UCHINO , Noboru KUNIMATSU , Hidehiro SONODA , Chikae MATSUI , Yuko MATSUMOTO , Tomio YAGUCHI , Toshiki KANEKO , Jun TANAKA
IPC: G02F1/1337 , G03F7/30 , G03F7/36
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.
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