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公开(公告)号：US09086597B2
公开(公告)日：2015-07-21
申请号：US14287795
申请日：2014-05-27
Inventor： Hidehiro Sonoda , Chikae Matsui , Noboru Kunimatsu
IPC: G02F1/1337 , G02F1/1339
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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公开(公告)号：US09028926B2
公开(公告)日：2015-05-12
申请号：US14061284
申请日：2013-10-23
Inventor： Masaki Matsumori , Yasushi Tomioka , Noboru Kunimatsu
IPC: G02F1/1337 , G02F1/1343
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：US20150116624A1
公开(公告)日：2015-04-30
申请号：US14592517
申请日：2015-01-08
Inventor： Hidehiro Sonoda , Chikae Matsui , Noboru Kunimatsu
IPC: G02F1/1339 , G02F1/1337 , G02F1/1333 , G02F1/1343 , G02F1/1368 , G02F1/1362
CPC classification number: G02F1/13394 , G02F1/133305 , G02F1/133345 , G02F1/1337 , G02F1/134363 , G02F1/13439 , G02F1/136286 , G02F1/1368 , G02F2001/13398
Abstract: A liquid crystal display device includes a TFT substrate and a counter substrate and a liquid crystal layer sandwiched therebetween. A scanning line, a video signal line, a thin film transistor connected to the scanning line and the video signal line, a pixel electrode connected to the thin film transistor, and a counter electrode are formed on the TFT substrate, and a columnar spacer formed on the counter substrate. The pixel and counter electrodes are transparent, and the liquid crystal layer is controlled by an electric field generated between the pixel and counter electrodes. The counter electrode contacts with a metal line having a first part which is extended in parallel with the scanning line and a second part which is extended in parallel with the video signal line, a width of the first part of the metal line being narrower than a width of the scanning line.
Abstract translation: 液晶显示装置包括TFT基板和对置基板以及夹在其间的液晶层。 在TFT基板上形成扫描线，视频信号线，连接到扫描线和视频信号线的薄膜晶体管，连接到薄膜晶体管的像素电极和对电极，并形成柱状间隔物 在对置基板上。 像素和对电极是透明的，并且通过在像素和对电极之间产生的电场来控制液晶层。 对置电极与金属线接触，金属线具有与扫描线平行延伸的第一部分和与视频信号线平行延伸的第二部分，金属线的第一部分的宽度窄于 扫描线的宽度。
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公开(公告)号：US20150042937A1
公开(公告)日：2015-02-12
申请号：US14521921
申请日：2014-10-23
Applicant: Japan Display Inc.
Inventor： Shoichi Uchino , Noboru Kunimatsu
IPC: C09K19/56 , G02F1/1337
CPC classification number: C09K19/56 , G02F1/133711 , G02F1/133788 , Y10T428/1005 , Y10T428/1018 , Y10T428/1023
Abstract: To form an optical alignment film having large anchoring strength and suppress an AC afterimage of a liquid crystal display device, in a liquid crystal display device of an IPS mode. In an alignment film material subjected to optical alignment processing, polyimide which becomes a rigid high molecule and polyimide which becomes a flexible high molecule are mixed and used. The material of the present invention can easily rotate oligomer after irradiating polarized ultraviolet rays and improve a UV-absorbed two-color ratio of an alignment film. Accordingly, an anchoring strength for liquid crystals by the alignment film is large to suppress an AC afterimage.
Abstract translation: 在IPS模式的液晶显示装置中，形成具有大的锚固强度的光取向膜，并抑制液晶显示装置的AC残像。 在进行光学取向处理的取向膜材料中，混合使用成为高分子刚性的聚酰亚胺和成为柔性高分子的聚酰亚胺。 本发明的材料可以在照射偏振紫外线后容易地旋转低聚物，并提高取向膜的UV吸收双色比。 因此，通过取向膜的液晶的锚固强度大，以抑制AC残像。
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公开(公告)号：US08908133B2
公开(公告)日：2014-12-09
申请号：US14107028
申请日：2013-12-16
Inventor： Hidehiro Sonoda , Chikae Matsui , Noboru Kunimatsu , Yuko Matsumoto
IPC: G02F1/1337 , G02F1/1343
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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Patent Agency Ranking
公开(公告)号：US11036088B2
公开(公告)日：2021-06-15
申请号：US16143796
申请日：2018-09-27
Applicant: Japan Display Inc.
Inventor： Hidehiro Sonoda , Masahiro Kosuge , Yasushi Tomioka , Takenori Hirota , Noboru Kunimatsu
IPC: G02F1/1337 , C09K19/56 , G02F1/1343 , C09K19/54
Abstract: According to one embodiment, a liquid crystal display device includes a first substrate, a second substrate disposed to oppose the first substrate, a layer of liquid crystal located between the first substrate and the second substrate, and an alignment film disposed on the first substrate so as to be in contact with the layer of the liquid crystal. The liquid crystal has a refractive-index anisotropy Δn of 0.11 or more, the layer of the liquid crystal has a thickness d of 2.5 μm or less, and a product Δnd of the refractive-index anisotropy Δn and the thickness d is 0.20 or more but 0.31 or less. The transmissivity of light having a wavelength of 450 nm in the first substrate and the alignment film is 85% or more but 97% or less.
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公开(公告)号：US10989965B2
公开(公告)日：2021-04-27
申请号：US16876786
申请日：2020-05-18
Inventor： Hidehiro Sonoda , Chikae Matsui , Noboru Kunimatsu
IPC: G02F1/1339 , G02F1/1362 , G02F1/1333 , G02F1/1337 , G02F1/1343 , G02F1/1368
Abstract: A liquid crystal display device includes a TFT substrate and a counter substrate and a liquid crystal layer sandwiched therebetween. A scanning line, a video signal line, a thin film transistor connected to the scanning line and the video signal line, a pixel electrode connected to the thin film transistor, and a counter electrode are formed on the TFT substrate, and a columnar spacer formed on the counter substrate. The pixel and counter electrodes are transparent, and the liquid crystal layer is controlled by an electric field generated between the pixel and counter electrodes. The counter electrode contacts with a metal line having a first part which is extended in parallel with the scanning line and a second part which is extended in parallel with the video signal line, a width of the first part of the metal line being narrower than a width of the scanning line.
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公开(公告)号：US10947345B2
公开(公告)日：2021-03-16
申请号：US15647322
申请日：2017-07-12
Applicant: Japan Display Inc.
Inventor： Hidehiro Sonoda , Takenori Hirota , Yasushi Tomioka , Noboru Kunimatsu
IPC: C08G73/10 , G02F1/1337 , C09D179/08 , G02F1/1333
Abstract: According to one embodiment, a varnish for a photo alignment film includes an imidization promotor and a first polyamic acid-based compound in an organic solvent. The first polyamic acid-based compound is a polyamic acid or a polyamic acid ester. The imidization promotor has skeleton containing no primary amino group and no secondary amino group. The first polyamic acid-based compound has terminal skeletons containing no primary amino group.
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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.
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公开(公告)号：US10281771B2
公开(公告)日：2019-05-07
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 , G02F1/13363 , G02F1/1339
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.
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