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公开(公告)号：US10247990B2
公开(公告)日：2019-04-02
申请号：US16158402
申请日：2018-10-12
Applicant: Japan Display Inc.
Inventor： Yasushi Tomioka , Yosuke Hyodo , Hidehiro Sonoda , Noboru Kunimatsu
IPC: G02F1/1343 , G02F1/1337 , G02F1/1335 , H01L27/12 , G02F1/1368 , G02F1/1333 , G02F1/1362
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.
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公开(公告)号：US20190094628A1
公开(公告)日：2019-03-28
申请号：US16199354
申请日：2018-11-26
Inventor： Chikae Matsui , Noboru Kunimatsu , Hidehiro Sonoda
IPC: G02F1/1337 , C09K19/56 , G02F1/1343 , G02F1/1333
Abstract: An alignment film is given a 2-layer structure comprising a photoalignment film that is photoalignable and a low-resistivity alignment film whose resistivity is smaller than that of the photoalignment film. The photoalignment film is formed by a polyimide whose precursor is polyamide acid alkyl ester, the number molecular weight of the photoalignment film is large, and the stability of alignment of the photoalignment film by photoalignment is excellent. The low-resistivity alignment film is formed by a polyimide whose precursor is polyamide acid, the number molecular weight of the low-resistivity alignment film is small, and the resistivity of the low-resistivity alignment film is small. The 2-layer structure alignment film can be maintaining an excellent photoalignment characteristic, so DC afterimages can be controlled.
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公开(公告)号：US10168579B2
公开(公告)日：2019-01-01
申请号：US14879345
申请日：2015-10-09
Inventor： Chikae Matsui , Noboru Kunimatsu , Hidehiro Sonoda
IPC: G02F1/1337 , C09K19/56 , G02F1/1343 , G02F1/1333
Abstract: An alignment film is given a 2-layer structure comprising a photoalignment film that is photoalignable and a low-resistivity alignment film whose resistivity is smaller than that of the photoalignment film. The photoalignment film is formed by a polyimide whose precursor is polyamide acid alkyl ester, the number molecular weight of the photoalignment film is large, and the stability of alignment of the photoalignment film by photoalignment is excellent. The low-resistivity alignment film is formed by a polyimide whose precursor is polyamide acid, the number molecular weight of the low-resistivity alignment film is small, and the resistivity of the low-resistivity alignment film is small. The 2-layer structure alignment film can be maintaining an excellent photoalignment characteristic, so DC afterimages can be controlled.
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公开(公告)号：US09778520B2
公开(公告)日：2017-10-03
申请号：US15401795
申请日：2017-01-09
Applicant: Japan Display Inc.
Inventor： Yasushi Tomioka , Yosuke Hyodo , Hidehiro Sonoda , Noboru Kunimatsu
IPC: G02F1/1343 , G02F1/1368 , G02F1/1362 , G02F1/1335 , G02F1/1333 , G02F1/1337
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.
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公开(公告)号：US09746718B2
公开(公告)日：2017-08-29
申请号：US14968042
申请日：2015-12-14
Applicant: Japan Display Inc.
Inventor： Yasushi Tomioka , Noboru Kunimatsu , Yosuke Hyodo , Toshiki Kaneko , Yuko Matsumoto
IPC: G02F1/1339 , G02F1/1362 , G02F1/1368
CPC classification number: G02F1/13394 , G02F1/1339 , G02F1/136286 , G02F1/1368 , G02F2001/13396 , G02F2001/13398
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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Patent Agency Ranking
公开(公告)号：US09507211B2
公开(公告)日：2016-11-29
申请号：US14474511
申请日：2014-09-02
Applicant: Japan Display Inc.
Inventor： Yasushi Tomioka , Noboru Kunimatsu , Hidehiro Sonoda , Yosuke Hyodo
IPC: G02F1/1333 , G02F1/1337 , G02F1/1339
CPC classification number: G02F1/133788 , G02F1/133345 , G02F1/13394 , G02F2001/133388
Abstract: The invention provides a liquid crystal display device which is highly reliable even with a slim frame area. Ina liquid crystal display device having a display area and a frame area, the frame area includes, in an area close to the display area, a flat portion where an organic insulation film, a transparent conductive film, and an alignment film are stacked in this order and, in an area away from the display area, a groove structure formed in the organic insulation film, the groove structure being continuous surrounding the display area. The organic insulation film is less wettable than the transparent conductive film by the alignment film ink.
Abstract translation: 本发明提供一种液晶显示装置，其即使具有纤细的框架区域也是高度可靠的。 在具有显示区域和框架区域的液晶显示装置中，框架区域在靠近显示区域的区域中包括在其中堆叠有机绝缘膜，透明导电膜和取向膜的平坦部分 并且在远离显示区域的区域中，形成在有机绝缘膜中的凹槽结构，所述凹槽结构连续围绕显示区域。 有机绝缘膜比通过取向膜墨水的透明导电膜的可润湿性差。
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公开(公告)号：US20160109771A1
公开(公告)日：2016-04-21
申请号：US14978671
申请日：2015-12-22
Applicant: Japan Display Inc.
Inventor： Yasushi Tomioka , Yosuke Hyodo , Hidehiro Sonoda , Noboru Kunimatsu
IPC: G02F1/1362 , H01L27/12 , G02F1/1333 , G02F1/1368 , G02F1/1335
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：US09250491B2
公开(公告)日：2016-02-02
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
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.
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公开(公告)号：US09250479B2
公开(公告)日：2016-02-02
申请号：US13719285
申请日：2012-12-19
Applicant: Japan Display Inc.
Inventor： Yasushi Tomioka , Noboru Kunimatsu , Yosuke Hyodo , Toshiki Kaneko , Yuko Matsumoto
IPC: G02F1/1339
CPC classification number: G02F1/13394 , G02F1/1339 , G02F1/136286 , G02F1/1368 , G02F2001/13396 , G02F2001/13398
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.
Abstract translation: 液晶显示装置包括：TFT基板，其上配置有栅线和数据线，栅极线沿第一方向延伸并沿第二方向布置，数据线沿第二方向延伸并沿第一方向布置; 具有黑矩阵和滤色器的对置基板; 并将液晶放置在TFT基板和对置基板之间。 在对置基板上形成柱状间隔物。 基台形成在TFT基板的部分上，对应于柱状间隔件。 在柱状间隔物的顶端存在凸部和凹部。 基座与凹部对应地形成。 凹部在其端部开口并与柱状间隔件的横向侧连接。
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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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