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公开(公告)号：US09360709B2
公开(公告)日：2016-06-07
申请号：US14458308
申请日：2014-08-13
Applicant: Japan Display Inc.
Inventor： Noboru Kunimatsu , Yasushi Tomioka , Hidehiro Sonoda , Yosuke Hyodo , Yasuo Imanishi
IPC: G02F1/1337 , G02F1/1339 , G02F1/1333
CPC classification number: G02F1/133788 , G02F1/133345 , G02F1/1337 , G02F1/1339
Abstract: A TFT substrate and a counter substrate are bonded via a seal material. Alignment films are applied to entire surfaces of the TFT substrate and the counter substrate so as to realize even thickness of the alignment film. This allows a display region to be formed up to the area around the seal material. The alignment film is photo-alignment processed. An organic film formed of the material which is not photo-aligned is interposed between the alignment film and the seal material. High bonding strength between the organic film and the seal material improves reliability of a seal portion as well as reduces a frame region.
Abstract translation: TFT基板和对置基板通过密封材料接合。 将对准膜施加到TFT基板和对置基板的整个表面，以实现取向膜的均匀厚度。 这允许显示区域形成到密封材料周围的区域。 对准膜进行光取向处理。 由取向膜和密封材料之间插入由不被光取向的材料形成的有机膜。 有机膜和密封材料之间的高粘结强度提高了密封部分的可靠性，并且缩小了框架区域。
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公开(公告)号：US09213202B2
公开(公告)日：2015-12-15
申请号：US14339492
申请日：2014-07-24
Applicant: Japan Display Inc.
Inventor： Yasushi Tomioka , Noboru Kunimatsu , Hidehiro Sonoda , Yasuo Imanishi , Koichi Igeta
IPC: G02F1/1339 , G02F1/1362
CPC classification number: G02F1/1339 , G02F1/13392 , G02F1/13394 , G02F1/136227 , G02F2001/13396
Abstract: A display device includes a first substrate having a plurality of TFTs, a passivation film, and a plurality of pixel electrodes, and a second substrate arranged with a gap with the first substrate. The passivation film has a plurality of contact holes, and the plurality of pixel electrodes are connected to the plurality of TFTs via the plurality of contact holes. The second substrate has a plurality of columnar spacers for ensuring the gap with the first substrate, and a plurality of columnar projections for misalignment prevention formed at positions corresponding to the contact holes. The number of the plurality of columnar projections is less than the number of the plurality of columnar spacers.
Abstract translation: 显示装置包括具有多个TFT的第一基板，钝化膜和多个像素电极，以及与第一基板间隔设置的第二基板。 钝化膜具有多个接触孔，并且多个像素电极经由多个接触孔连接到多个TFT。 第二基板具有多个用于确保与第一基板的间隙的柱状间隔件，以及在对应于接触孔的位置形成多个用于不对准的柱状突起。 多个柱状突起的数量少于多个柱状间隔物的数量。
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公开(公告)号：US09158160B2
公开(公告)日：2015-10-13
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 , G02F1/1339 , 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：US09097939B2
公开(公告)日：2015-08-04
申请号：US14527858
申请日：2014-10-30
Inventor： Shoichi Uchino , Noboru Kunimatsu , Hidehiro Sonoda , Chikae Matsui , Yuko Matsumoto , Masaki Matsumori , Yasushi Tomioka , Jun Tanaka
IPC: G02F1/1337 , C08G73/10
CPC classification number: G02F1/133723 , B32B2457/202 , C08G73/1064 , C08G73/1078 , Y10T428/10 , Y10T428/1005 , Y10T428/1023
Abstract: A liquid crystal display device includes: a pair of substrates at least one of which is transparent; a liquid crystal layer disposed between the pair of substrates; an electrode group formed on at least one substrate of the pair of substrates, for applying an electric field to the liquid crystal layer; a plurality of active elements connected to the electrode group; and a liquid crystal alignment film disposed on at least one substrate of the pair of substrates, in which the liquid crystal alignment film, which is formed by a photo-alignment process, contains polyimide formed using tetracarboxylic acid dianhydride and/or diamine each having a specific chemical structure.
Abstract translation: 液晶显示装置包括：至少一个透明的一对基板; 设置在所述一对基板之间的液晶层; 形成在所述一对基板的至少一个基板上的用于向所述液晶层施加电场的电极组; 连接到所述电极组的多个有源元件; 以及设置在该对基板的至少一个基板上的液晶取向膜，其中通过光取向工艺形成的液晶取向膜含有使用四羧酸二酐和/或二胺形成的聚酰亚胺，所述四羧酸二酐和/或二胺各自具有 具体化学结构。
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Patent Agency Ranking
115.发明授权公开(公告)号：US09086591B2
公开(公告)日：2015-07-21
申请号：US13675417
申请日：2012-11-13
Applicant: Japan Display Inc.
Inventor： Chikae Matsui , Noboru Kunimatsu , Hidehiro Sonoda
IPC: G02F1/1337 , G02F1/1335 , G02F1/13 , G02F1/1333
CPC classification number: G02F1/133602 , G02F1/1303 , G02F1/133788 , G02F2001/133388 , G02F2001/133397
Abstract: A high quality liquid crystal display device has an alignment film with a photoconductive characteristic. Since a region having gate lines situated therebelow does not undergo irradiation of a backlight, no photoconductive effect can be obtained. A photoresist is disposed below the alignment film situated over the gate lines in order to transfer the charges in the region to an opening portion of the alignment film in an early stage. Since the photoresist has a thickness of about 1.5 μm, which is 20 times or more the 70 nm thickness of the alignment film, the resistance in the lateral direction is low in a portion where the photoresist is present. Accordingly, since the charges on the alignment film present over the gate line transfer to the opening portion of the alignment film and are eliminated in an early stage, the residual image is eliminated in the early stage.
Abstract translation: 高品质液晶显示装置具有光导特性的取向膜。 由于具有位于其下方的栅极线的区域不经受背光的照射，因此不能获得光导效果。 光致抗蚀剂设置在位于栅极线上方的取向膜的下方，以便将该区域中的电荷在早期阶段转移到取向膜的开口部分。 由于光致抗蚀剂具有约1.5μm的厚度，其为取向膜的70nm厚度的20倍以上，所以在存在光致抗蚀剂的部分中，横向的电阻较低。 因此，由于存在于栅极线上的取向膜上的电荷转移到取向膜的开口部分并且在早期被消除，所以残留图像在早期被消除。
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公开(公告)号：US08994908B2
公开(公告)日：2015-03-31
申请号：US13852565
申请日：2013-03-28
Inventor： Chikae Matsui , Hidehiro Sonoda , Noboru Kunimatsu
IPC: G02F1/1339 , G02F1/1368 , G02F1/1337 , G02F1/1343 , G02F1/1335
CPC classification number: G02F1/1339 , G02F1/133512 , G02F1/133514 , G02F1/1337 , G02F1/134363 , G02F1/1368 , G02F2001/133519
Abstract: In a liquid crystal display device, a light shielding film, a color filter, an overcoat film, and an alignment film are formed in this order on a counter substrate. However, the alignment film is not formed in a seal portion. When the alignment film is subjected to photo-alignment with ultraviolet radiation, a portion of the overcoat film not covered with the alignment film is degraded by ultraviolet radiation. In order to prevent moisture penetrating from the degraded overcoat film from reaching the light shielding film to thereby alter the light shielding film and from causing the peeling of the light shielding film, the color filter is disposed below the overcoat film to block the moisture.
Abstract translation: 在液晶显示装置中，在对置基板上依次形成遮光膜，滤色器，外涂膜和取向膜。 然而，取向膜不形成在密封部中。 当利用紫外线照射取向膜时，未被取向膜覆盖的外涂层的一部分被紫外线照射而劣化。 为了防止从劣化的外涂膜渗透的水分到达遮光膜，从而改变遮光膜，并且不会引起遮光膜的剥离，滤色器设置在外涂膜的下方以阻挡水分。
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公开(公告)号：US20140333885A1
公开(公告)日：2014-11-13
申请号：US14339492
申请日：2014-07-24
Applicant: Japan Display Inc.
Inventor： Yasushi Tomioka , Noboru Kunimatsu , Hidehiro Sonoda , Yasuo Imanishi , Koichi Igeta
IPC: G02F1/1339
CPC classification number: G02F1/1339 , G02F1/13392 , G02F1/13394 , G02F1/136227 , G02F2001/13396
Abstract: A display device includes a first substrate having a plurality of TFTs, a passivation film, and a plurality of pixel electrodes, and a second substrate arranged with a gap with the first substrate. The passivation film has a plurality of contact holes, and the plurality of pixel electrodes are connected to the plurality of TFTs via the plurality of contact holes. The second substrate has a plurality of columnar spacers for ensuring the gap with the first substrate, and a plurality of columnar projections for misalignment prevention formed at positions corresponding to the contact holes. The number of the plurality of columnar projections is less than the number of the plurality of columnar spacers.
Abstract translation: 显示装置包括具有多个TFT的第一基板，钝化膜和多个像素电极，以及与第一基板间隔设置的第二基板。 钝化膜具有多个接触孔，并且多个像素电极经由多个接触孔连接到多个TFT。 第二基板具有多个用于确保与第一基板的间隙的柱状间隔件，以及在对应于接触孔的位置形成多个用于不对准的柱状突起。 多个柱状突起的数量少于多个柱状间隔物的数量。
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公开(公告)号：US20140144582A1
公开(公告)日：2014-05-29
申请号：US14167411
申请日：2014-01-29
Inventor： Noboru Kunimatsu , Chikae Matsui , Hidehiro Sonoda , Yuko Matsumoto , Shoichi Uchino , Masaki Matsumori , Yasushi Tomioka
IPC: G02F1/1337
CPC classification number: G02F1/133723 , C09K19/56 , G02F1/133711 , G02F1/133788 , G02F1/134363 , G02F1/1368 , H01L27/1262 , H01L27/1296 , Y10T428/10 , Y10T428/1005
Abstract: A method for fabricating a liquid crystal display device having a TFT substrate in which an alignment film is formed over a pixel including a pixel electrode and a TFT, an opposing substrate which faces the TFT substrate, and liquid crystals sandwiched between the TFT substrate and the opposing substrate, the alignment film on the TFT substrate including a first and a second alignment film. The method includes depositing a mixture liquid of polyamide acid ester, 80 percent or more of which is polyamide acid ester including cyclobutane, and polyamide acid not including cyclobutane onto the TFT substrate and the opposing substrate, and after drying and firing the TFT substrate and the opposing substrate to harden the alignment film, irradiating the alignment film with ultraviolet light for photo-alignment of the alignment film and, thereafter, heating the TFT substrate and the opposing substrate, thereby forming the alignment film.
Abstract translation: 一种用于制造液晶显示装置的方法，该液晶显示装置具有TFT基板，其中在包括像素电极和TFT的像素上形成取向膜，面对TFT基板的相对基板和夹在TFT基板和TFT基板之间的液晶 对置基板，TFT基板上的取向膜包括第一和第二取向膜。 该方法包括：在TFT基板和相对基板上沉积其中80重量％以上的聚酰胺酸酯和不含环丁烷的聚酰胺酸和聚对苯二甲酸丁二醇酯的混合液，并将其干燥和烧制后， 相对的基板硬化取向膜，用紫外线照射取向膜，对取向膜进行光取向，然后加热TFT基板和对置基板，由此形成取向膜。
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公开(公告)号：US08619221B2
公开(公告)日：2013-12-31
申请号：US13926247
申请日：2013-06-25
Inventor： Hidehiro Sonoda , Chikae Matsui , Noboru Kunimatsu , Yuko Matsumoto
IPC: G02F1/1337
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.
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