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公开(公告)号：US20180292722A1
公开(公告)日：2018-10-11
申请号：US16005896
申请日：2018-06-12
Applicant: Japan Display Inc.
Inventor： Yasushi TOMIOKA , Toshimasa Ishigaki , Hidehiro Sonoda , Sumito Ueta
IPC: G02F1/1362
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.
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公开(公告)号：US20180180957A1
公开(公告)日：2018-06-28
申请号：US15901945
申请日：2018-02-22
Applicant: Japan display Inc.
Inventor： Yasushi TOMIOKA , Toshimasa ISHIGAKI , Hidehiro SONODA , Sumito UETA
IPC: G02F1/1362 , G02F1/1368 , G02F1/1335 , G02F1/1337 , G02F1/1333
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.
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公开(公告)号：US20160377925A1
公开(公告)日：2016-12-29
申请号：US15194138
申请日：2016-06-27
Inventor： Yasushi TOMIOKA , Hidetoshi ABE , Katsumi KONDO
IPC: G02F1/1337 , C09K19/56 , C09D179/08 , G02F1/1343
CPC classification number: G02F1/133723 , C09D179/08 , C09K19/542 , C09K19/56 , C09K2019/548 , G02F1/133788 , G02F1/134363 , G02F2201/121 , G02F2201/123 , G02F2202/08 , Y10T428/10 , Y10T428/1005 , Y10T428/1018 , Y10T428/1023 , Y10T428/1027 , Y10T428/1036
Abstract: A liquid crystal display is provided which is capable of reducing the occurrence of defective display due to variations in the initial alignment direction of a liquid crystal alignment control film in a liquid crystal display of an IPS scheme, realizing the stable liquid crystal alignment, providing excellent mass productivity, and having high image quality with a higher contrast ratio. The liquid crystal display has a liquid crystal layer disposed between a pair of substrates, at least one of the substrates being transparent, and an alignment control film formed between the liquid crystal layer and the substrate. At least one of the alignment control films 109 comprises photoreactive polyimide and/or polyamic acid provided with an alignment control ability by irradiation of substantially linearly polarized light.
Abstract translation: 提供了一种液晶显示器，其能够减少由IPS方案的液晶显示器中的液晶取向控制膜的初始取向方向的变化引起的不良显示的发生，实现了稳定的液晶取向，从而提供优异的 批量生产率，并具有较高的图像质量和更高的对比度。 液晶显示器具有设置在一对基板之间的液晶层，至少一个基板是透明的，以及形成在液晶层和基板之间的取向控制膜。 取向控制膜109中的至少一个包括通过基本线性偏振光的照射而具有取向控制能力的光反应性聚酰亚胺和/或聚酰胺酸。
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公开(公告)号：US20160357078A1
公开(公告)日：2016-12-08
申请号：US15238229
申请日：2016-08-16
Applicant: Japan Display Inc.
Inventor： Yasushi TOMIOKA , Takato HIRATSUKA , Osamu ITOU
IPC: G02F1/1343 , G02F1/1362 , H01L27/12 , G02F1/1339 , G02F1/1337 , G02F1/1333 , 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.
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公开(公告)号：US20160357040A1
公开(公告)日：2016-12-08
申请号：US15144973
申请日：2016-05-03
Applicant: Japan Display Inc.
Inventor： Hidehiro SONODA , Noboru KUNIMATSU , Takenori HIROTA , Yosuke HYODO , Yasuo IMANISHI , Yasushi TOMIOKA
IPC: G02F1/1337 , G02F1/1339
CPC classification number: G02F1/1339 , G02F1/13363 , G02F1/133788
Abstract: In a liquid crystal display device having an alignment film subjected to an optical alignment process, the frame area can be reduced while maintaining the reliability of the sealing portion. To achieve this, in the display area, the alignment process is performed with UV light on the alignment film, to form an area in which the alignment film is not formed in the opposing first and second sides, and to form an area in which the amount of UV light irradiation on the alignment film is one fourth or less of the display area in the opposing third and fourth sides. In the first and second sides, the sealing material overlaps the area in which the alignment film is not formed. In the third and fourth sides, the sealing material overlaps the area in which the amount of UV light irradiation is one fourth or less of the display area.
Abstract translation: 在具有经过光学校准处理的取向膜的液晶显示装置中，可以在保持密封部的可靠性的同时减小框架面积。 为了实现这一点，在显示区域中，在取向膜上用UV光进行取向处理，以形成在相对的第一和第二面中不形成取向膜的区域，并形成其中 取向膜上的紫外线照射量相对第三，第四面的显示面积的四分之一以下。 在第一和第二侧，密封材料与未形成取向膜的区域重叠。 在第三和第四侧，密封材料与显示区域的UV光照射量的四分之一以下的区域重叠。
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Patent Agency Ranking
公开(公告)号：US20150210923A1
公开(公告)日：2015-07-30
申请号：US14678381
申请日：2015-04-03
Inventor： Masaki MATSUMORI , Yasushi TOMIOKA , Noboru KUNIMATSU
IPC: C09K19/56 , G02F1/137 , G02F1/1337 , C08L77/06 , C08L33/24
CPC classification number: C09K19/56 , B32B2457/202 , C08L33/24 , C08L77/06 , G02F1/133723 , G02F1/133788 , G02F1/134363 , G02F1/137 , G02F2001/133749 , G02F2001/13706 , Y10T428/1005 , Y10T428/1018 , Y10T428/1023
Abstract: An IPS type liquid crystal display device superior in mass productivity and improved in image quality with a higher contrast ratio by decreasing the occurrence of defective display due to the disorder of the initial liquid crystal alignment by the liquid orientation control film and realizing stable alignment of liquid crystals comprises: a pair of substrates, at least one which is transparent; a liquid crystal layer disposed between the pair of substrates; a group of electrodes formed on at least one of the pair of substrates to apply an electric field to the liquid crystal layer; plural active elements connected to the group of electrodes; and an orientation control film disposed on at least one of the pair of substrates, wherein said orientation control film is made of a photosensitive polyimide and a polyamide acid ester and is given orientation control ability by being irradiated with substantially linearly polarized light.
Abstract translation: 一种IPS型液晶显示装置，其通过减少由于液体取向控制膜的初始液晶取向无序而导致的不良显示的发生，并且实现液体的稳定取向 晶体包括：一对基板，至少一个基板是透明的; 设置在所述一对基板之间的液晶层; 形成在所述一对基板中的至少一个基板上的一组电极，以向所述液晶层施加电场; 连接到该组电极的多个有源元件; 以及设置在所述一对基板中的至少一个基板上的取向控制膜，其中所述取向控制膜由感光性聚酰亚胺和聚酰胺酸酯构成，并且通过用基本上线偏振光照射而获得取向控制能力。
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公开(公告)号：US20150002802A1
公开(公告)日：2015-01-01
申请号：US14485711
申请日：2014-09-13
Applicant: Japan Display Inc.
Inventor： Noboru KUNIMATSU , Masaki MATSUMORI , Hidehiro SONODA , Yasushi TOMIOKA , Toshiki KANEKO
IPC: G02F1/1337 , G02F1/1333
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.
Abstract translation: 本发明防止了使用光取向的IPS方法的液晶显示装置中的柱状间隔物引起的取向膜的刮削。 在对置基板上形成的柱状间隔件与TFT基板接触的部分，形成比像素电极高的底座。 当在像素电极和底座上施加双层结构的取向膜时，底座上的取向膜的厚度减小了平整效应。 当在该状态下进行光对准时，在底座上的光降解的上取向膜消失，并且残留有机械强度较高的下取向膜。 结果，可以防止取向膜的刮削。
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公开(公告)号：US20140307212A1
公开(公告)日：2014-10-16
申请号：US14249493
申请日：2014-04-10
Applicant: Japan Display Inc.
Inventor： Shinichiro OKA , Mika OIWA , Yasushi TOMIOKA , Toshiharu MATSUSHIMA
IPC: G02F1/1337
CPC classification number: G02F1/134363 , G02F2001/134372 , G02F2201/124
Abstract: A pixel electrode formed into a slit structure with striped electrodes opposed to each other for a zero rubbing angle can provide fast response since rotational directions of the liquid crystals become opposite at both sides of the slit in the striped electrodes. The electrode structure, however, poses a problem of low transmittance.Provided is a liquid crystal display device of IPS-Pro scheme including a pixel electrode with one pair of striped electrodes, an electrode section of one of striped electrodes being partially interposed between electrode sections of other striped electrode, and liquid crystals being oriented in a lengthwise direction of the striped electrodes.
Abstract translation: 形成为具有相对于零摩擦角的带状电极的狭缝结构的像素电极可以提供快速响应，因为液晶的旋转方向在条形电极的狭缝的两侧变得相反。 然而，电极结构存在透光率低的问题。 提供一种IPS-Pro方案的液晶显示装置，其包括具有一对条状电极的像素电极，一部分条状电极的电极部分插入在其他条状电极的电极部分之间，液晶沿纵向 条纹电极的方向。
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公开(公告)号：US20250052937A1
公开(公告)日：2025-02-13
申请号：US18795401
申请日：2024-08-06
Applicant: Japan Display Inc. , OSAKA UNIVERSITY
Inventor： Koichi IGETA , Junji KOBASHI , Yasushi TOMIOKA , Shinichiro OKA , Hiroyuki YOSHIDA
Abstract: According to one embodiment, a liquid crystal optical element includes a transparent substrate, and a liquid crystal layer which faces the transparent substrate and has a cholesteric liquid crystal and an additive exhibiting liquid crystallinity. Refractive anisotropy of the additive is less than refractive anisotropy of the liquid crystal layer.
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公开(公告)号：US20240180455A1
公开(公告)日：2024-06-06
申请号：US18437293
申请日：2024-02-09
Applicant: Japan Display Inc.
Inventor： Yasushi TOMIOKA , Akio TAKIMOTO , Hirofumi KATO , Takashi NAKAMURA , Chiharu KABURAGI , Hiroyuki KIMURA , Miharu MATSUSHIMA
IPC: A61B5/1455
CPC classification number: A61B5/14552 , A61B2562/0238 , A61B2562/0242
Abstract: According to an aspect, a transcutaneous muscle oxygen saturation detection device includes: a light source configured to emit light into a body; and a first light detector and a second light detector that are configured to detect reflected light reflected in the body. The second light detector is circumferentially displaced about the light source from a first imaginary line connecting the light source to the first light detector.
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