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公开(公告)号：US10962815B2
公开(公告)日：2021-03-30
申请号：US16735388
申请日：2020-01-06
Inventor： Hideo Tanabe , Masaru Takabatake , Toshiki Kaneko , Atsushi Hasegawa , Hiroko Sehata
IPC: G02F1/1333 , G02F1/1362 , G02F1/1368 , H01L27/12 , G02F1/1335 , G02F1/1343 , H01L29/786
Abstract: A LCD device having a large pixel holding capacitance includes opposedly facing first and second substrates, and liquid crystal between them. The first substrate includes a video signal line, a pixel electrode, a thin film transistor having a first electrode connected to the video signal line and a second electrode connected to the pixel electrode, a first silicon nitride film formed above the second electrode, an organic insulation film above the first silicon nitride film, a capacitance electrode above the organic insulation film, and a second silicon nitride film above the capacitance electrode and below the pixel electrode. A contact hole etched in both the first and second silicon nitride films connects the second electrode and the pixel electrode to each other. A holding capacitance is formed by the pixel electrode, the second silicon nitride film and the capacitance electrode.
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公开(公告)号：US10761380B2
公开(公告)日：2020-09-01
申请号：US16373832
申请日：2019-04-03
Applicant: Japan Display Inc.
Inventor： Takenori Hirota , Yasuhiro Kanaya , Hidehiro Sonoda , Toshiki Kaneko
IPC: G02F1/1339 , G02F1/1333
Abstract: A reliability of seal portion of a liquid crystal display device can be improved by the following structure. A liquid crystal display device includes: a TFT substrate which includes a display region and a terminal part, and has an inorganic insulating film formed on an organic passivation film and an alignment film formed over the inorganic insulating film; a counter substrate, the TFT substrate and the counter substrate bonded together by a sealing material formed at a seal part surrounding the display region; and a liquid crystal sealed inside. At the seal part, a transparent conductive oxide film is formed between the inorganic insulating film and the alignment film. The transparent conductive oxide film exists inside an edge of the TFT substrate and hence, the edge of the TFT substrate is free of the transparent conductive oxide film.
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公开(公告)号：US10539833B2
公开(公告)日：2020-01-21
申请号：US16239932
申请日：2019-01-04
Applicant: Japan Display Inc.
Inventor： Noboru Kunimatsu , Masaki Matsumori , Hidehiro Sonoda , Yasushi Tomioka , Toshiki Kaneko
IPC: G02F1/1337 , G02F1/1339 , G02F1/1333 , G02F1/1362 , G02F1/1368 , G02F1/1343
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：US10268081B2
公开(公告)日：2019-04-23
申请号：US14246787
申请日：2014-04-07
Inventor： Shoichi Uchino , Noboru Kunimatsu , Hidehiro Sonoda , Chikae Matsui , Yuko Matsumoto , Tomio Yaguchi , Toshiki Kaneko , Jun Tanaka
IPC: G02F1/1337 , G02F1/13 , G02F1/1333
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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Patent Agency Ranking
公开(公告)号：US10197857B2
公开(公告)日：2019-02-05
申请号：US15826366
申请日：2017-11-29
Applicant: Japan Display Inc.
Inventor： Noboru Kunimatsu , Masaki Matsumori , Hidehiro Sonoda , Yasushi Tomioka , Toshiki Kaneko
IPC: G02F1/1337 , G02F1/1339 , G02F1/1333 , G02F1/1362 , 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：US09864235B2
公开(公告)日：2018-01-09
申请号：US15284864
申请日：2016-10-04
Applicant: Japan Display Inc.
Inventor： Noboru Kunimatsu , Masaki Matsumori , Hidehiro Sonoda , Yasushi Tomioka , Toshiki Kaneko
IPC: G02F1/1337 , G02F1/1339 , G02F1/1333 , G02F1/1362 , G02F1/1368
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：US09496292B2
公开(公告)日：2016-11-15
申请号：US13915671
申请日：2013-06-12
Applicant: Japan Display Inc.
Inventor： Hidekazu Miyake , Norihiro Uemura , Takeshi Noda , Isao Suzumura , Toshiki Kaneko
CPC classification number: H01L27/1244 , H01L27/1225 , H01L27/1288 , H01L27/3244
Abstract: The present invention provides a display device having: gate electrodes formed on a transparent substrate; a gate insulating film for covering the gate electrodes; an oxide semiconductor formed on the gate insulating film; drain electrodes and source electrodes formed at a distance from each other with channel regions of the oxide semiconductor in between; an interlayer capacitor film for covering the drain electrodes and source electrodes; common electrodes formed on top of the interlayer capacitor film; and pixel electrodes formed so as to face the common electrodes, and wherein an etching stopper layer for covering the channel regions is formed between the oxide semiconductor and the drain electrodes and source electrodes, the drain electrodes are a multilayer film where a transparent conductive film and a metal film are layered on top of each other, and the drain electrodes and source electrodes make direct contact with the oxide semiconductor.
Abstract translation: 本发明提供一种显示装置，具有：形成在透明基板上的栅电极; 用于覆盖栅电极的栅极绝缘膜; 形成在栅极绝缘膜上的氧化物半导体; 漏电极和源极之间形成有一定距离的氧化物半导体的沟道区; 用于覆盖漏电极和源电极的层间电容膜; 公共电极形成在层间电容器膜的顶部; 以及形成为与公共电极相对的像素电极，并且其中在氧化物半导体与漏电极和源电极之间形成用于覆盖沟道区的蚀刻停止层，漏电极是多层膜，其中透明导电膜和 金属膜层叠在一起，漏电极和源电极与氧化物半导体直接接触。
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公开(公告)号：US09274364B2
公开(公告)日：2016-03-01
申请号：US14679154
申请日：2015-04-06
Inventor： Hideo Tanabe , Masaru Takabatake , Toshiki Kaneko , Atsushi Hasegawa , Hiroko Sehata
IPC: G02F1/136 , G02F1/1333 , G02F1/1362 , G02F1/1368 , H01L27/12 , H01L29/786 , G02F1/1335 , G02F1/1343
CPC classification number: G02F1/133345 , G02F1/133305 , G02F1/133504 , G02F1/133555 , G02F1/134363 , G02F1/136213 , G02F1/136227 , G02F1/1368 , G02F2001/13685 , H01L27/124 , H01L27/1248 , H01L29/78675
Abstract: A LCD device having a large pixel holding capacitance includes opposedly facing first and second substrates, and liquid crystal between them. The first substrate includes a video signal line, a pixel electrode, a thin film transistor having a first electrode connected to the video signal line and a second electrode connected to the pixel electrode, a first silicon nitride film formed above the second electrode, an organic insulation film above the first silicon nitride film, a capacitance electrode above the organic insulation film, and a second silicon nitride film above the capacitance electrode and below the pixel electrode. A contact hole etched in both the first and second silicon nitride films connects the second electrode and the pixel electrode to each other. A holding capacitance is formed by the pixel electrode, the second silicon nitride film and the capacitance electrode.
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49.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
Applicant: Japan Display Inc.
Inventor： Yosuke Hyodo , Koichi Igeta , Toshiki Kaneko , Noboru Kunimatsu , Hidehiro Sonoda
IPC: G02F1/1339 , G02F1/1337 , G02F1/1333 , G02F1/1368 , G02F1/1341
CPC classification number: G02F1/13394 , G02F1/133371 , G02F1/13378 , G02F1/1339 , G02F1/1341 , G02F1/1368 , G02F2001/13398 , G02F2001/13415 , G02F2201/50
Abstract: 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.
Abstract translation: 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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