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公开(公告)号：US10146096B2
公开(公告)日：2018-12-04
申请号：US16005896
申请日：2018-06-12
申请人： Japan Display Inc.
IPC分类号： G02F1/1362 , G02F1/1335 , G02F1/1337 , G02F1/1368 , G02F1/1333
摘要： 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.
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公开(公告)号：US20180180947A1
公开(公告)日：2018-06-28
申请号：US15893803
申请日：2018-02-12
申请人： Japan Display Inc.
IPC分类号： G02F1/1337 , G02F1/1343 , C08G73/10
CPC分类号： G02F1/133788 , B32B2457/202 , C08G73/10 , C08G73/1046 , C08G73/105 , C08G73/1078 , G02F1/133723 , G02F1/13378 , G02F1/134363 , Y10T428/1005 , Y10T428/1018 , Y10T428/1023
摘要： The present invention provides a liquid crystal display device in which even in the case of using a photo-alignment technique, excellent afterimage characteristics can be stably obtained. Provided is a liquid crystal display device including a TFT substrate having an alignment film, an opposed substrate which is arranged to face the TFT substrate and on which an alignment film is formed, and a liquid crystal layer sandwiched between the alignment films, wherein the alignment films are materials that can provide a liquid crystal alignment restraining force by irradiating polarized light, and the ratio of oxygen atoms on the surface of the alignment film is higher than that in the alignment film.
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公开(公告)号：US20180164648A1
公开(公告)日：2018-06-14
申请号：US15891707
申请日：2018-02-08
申请人： Japan Display Inc.
IPC分类号： G02F1/1343 , G02F1/1333 , G02F1/1368 , G02F1/1362 , G02F1/1335 , G02F1/1337
CPC分类号： G02F1/134363 , G02F1/133345 , G02F1/133512 , G02F1/133514 , G02F1/133788 , G02F1/136227 , G02F1/1368 , G02F2202/02 , H01L27/1218
摘要： 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 material can 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.
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公开(公告)号：US09921440B2
公开(公告)日：2018-03-20
申请号：US15693564
申请日：2017-09-01
申请人： Japan Display Inc.
IPC分类号： G02F1/1343 , G02F1/1337 , G02F1/1335 , G02F1/1362 , G02F1/1368 , G02F1/1333
CPC分类号： G02F1/134363 , G02F1/133345 , G02F1/133512 , G02F1/133514 , G02F1/133788 , G02F1/136227 , G02F1/1368 , G02F2202/02 , H01L27/1218
摘要： 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.
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公开(公告)号：US09864235B2
公开(公告)日：2018-01-09
申请号：US15284864
申请日：2016-10-04
申请人： Japan Display Inc.
IPC分类号： G02F1/1337 , G02F1/1339 , G02F1/1333 , G02F1/1362 , G02F1/1368
CPC分类号： G02F1/1337 , G02F1/1333 , G02F1/133345 , G02F1/133723 , G02F1/13378 , G02F1/133788 , G02F1/1339 , G02F1/13394 , G02F1/136286 , G02F1/1368
摘要： 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：US09304362B2
公开(公告)日：2016-04-05
申请号：US13964133
申请日：2013-08-12
申请人： Japan Display Inc.
IPC分类号： G02F1/1343 , G02F1/1333 , G02F1/136 , G02F1/1362
CPC分类号： G02F1/134309 , G02F1/1333 , G02F1/136 , G02F2001/133397 , G02F2001/134372 , G02F2001/136222
摘要： In a liquid crystal display device including: TFT substrate; color filter; counter electrode; interlayer insulation film; pixel electrode; alignment film; liquid crystal layer; counter substrate; and Si semiconductor layer. The color filter, counter electrode, interlayer insulation film, pixel electrode, and alignment film being formed on the side where the TFT substrate is provided, the counter substrate being disposed in facing relation to the TFT substrate with the liquid crystal layer put between the counter substrate and TFT substrate, the Si semiconductor layer is formed between the pixel electrode and interlayer insulation film. Even when light from a backlight is absorbed by the color filter and sufficient light cannot reach the alignment film, electric charges accumulated on the alignment film can escape to the pixel electrode in an early stage by the Si semiconductor layer formed under the alignment film, thereby capable of erasing the afterimage in an early stage.
摘要翻译： 一种液晶显示装置，包括：TFT基板; 滤色片; 对电极 层间绝缘膜; 像素电极; 取向膜; 液晶层; 对衬底 和Si半导体层。 在设置有TFT基板的一侧形成有滤色器，对电极，层间绝缘膜，像素电极和取向膜，对置基板与TFT基板相对配置，液晶层位于计数器之间 衬底和TFT衬底，在像素电极和层间绝缘膜之间形成Si半导体层。 即使当来自背光源的光被滤色器吸收并且足够的光不能到达取向膜时，积累在取向膜上的电荷可以通过在取向膜下面形成的Si半导体层在早期阶段中逸出到像素电极，从而 能够在早期消除残像。
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97.发明授权公开(公告)号：US09182634B2
公开(公告)日：2015-11-10
申请号：US14532591
申请日：2014-11-04
申请人： Japan Display Inc.
IPC分类号： G02F1/1339 , G02F1/1337 , G02F1/1333 , G02F1/1368 , G02F1/1341
CPC分类号： G02F1/13394 , G02F1/133371 , G02F1/13378 , G02F1/1339 , G02F1/1341 , G02F1/1368 , G02F2001/13398 , G02F2001/13415 , G02F2201/50
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US12072581B2
公开(公告)日：2024-08-27
申请号：US18143147
申请日：2023-05-04
发明人： Shoichi Uchino , Noboru Kunimatsu , Hidehiro Sonoda , Chikae Matsui , Yuko Matsumoto , Tomio Yaguchi , Toshiki Kaneko , Jun Tanaka
IPC分类号： G03F7/30 , G02F1/1337 , G03F7/36 , C08G73/10 , C09D179/08 , G02F1/13 , G02F1/1333
CPC分类号： G02F1/133788 , G03F7/30 , G03F7/36 , C08G73/1078 , C09D179/08 , C09K2323/027 , G02F1/1316 , G02F1/133354
摘要： 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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公开(公告)号：US11906857B2
公开(公告)日：2024-02-20
申请号：US18140006
申请日：2023-04-27
申请人： Japan Display Inc.
IPC分类号： G02F1/1343 , G02F1/1368 , G02F1/1362 , G02F1/1333 , G02F1/1335 , H01L27/12 , G02F1/1337
CPC分类号： G02F1/134363 , G02F1/1368 , G02F1/133345 , G02F1/133512 , G02F1/133514 , G02F1/133788 , G02F1/136227 , H01L27/1218 , G02F2202/02
摘要： 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.
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公开(公告)号：US11650467B2
公开(公告)日：2023-05-16
申请号：US17945789
申请日：2022-09-15
申请人： Japan Display Inc.
IPC分类号： G02F1/136 , G02F1/1362 , G02F1/1337 , G02F1/1333 , G02F1/1335 , G02F1/1368
CPC分类号： G02F1/136227 , G02F1/1337 , G02F1/1368 , G02F1/133345 , G02F1/133512 , G02F1/133707 , G02F1/133357 , G02F2201/121 , G02F2201/123
摘要： To prevent a phenomenon that an alignment film material is difficult to flow into the through-hole where a diameter of a through-hole for connecting between a pixel electrode and a source electrode is reduced.
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.
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