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公开(公告)号：US09482901B2
公开(公告)日：2016-11-01
申请号：US14840604
申请日：2015-08-31
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：US09442319B2
公开(公告)日：2016-09-13
申请号：US14065455
申请日：2013-10-29
Applicant: Japan Display Inc.
Inventor： Chikae Matsui , Yasushi Tomioka , Takato Hiratsuka
IPC: G02F1/1333 , G02F1/1339 , G02F1/1343
CPC classification number: G02F1/133377 , G02F1/13394 , G02F1/134363
Abstract: A liquid crystal display device includes a liquid crystal composition, a thin film transistor substrate as an insulation substrate on which a thin film transistor for controlling the orientation of the liquid crystal composition is provided, and a color filter substrate which seals the liquid crystal composition between itself and the thin film transistor substrate and controls a wavelength region of the transmitted light. The thin film transistor substrate includes a projection part extending from the thin film transistor substrate to the color filter substrate side, and a wall-like electrode on a wall surface of the projection part, which is one electrode for controlling the orientation of the liquid crystal composition. An insulation film and an orientation film are sequentially laminated on the wall-like electrode continuously from a surface parallel to a substrate surface.
Abstract translation: 液晶显示装置包括：液晶组合物，作为绝缘基板的薄膜晶体管基板，设置有用于控制液晶组合物的取向的薄膜晶体管;以及滤色器基板，其将液晶组成物 本身和薄膜晶体管衬底，并控制透射光的波长区域。 薄膜晶体管基板包括从薄膜晶体管基板延伸到滤色器基板侧的突出部分和在突出部分的壁表面上的壁状电极，该电极是用于控制液晶的取向的一个电极 组成。 绝缘膜和取向膜从平行于基板表面的表面连续地层叠在壁状电极上。
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公开(公告)号：US09417496B2
公开(公告)日：2016-08-16
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 , G02F1/1368 , G02F1/1335 , G02F1/1333 , H01L27/12
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：US09405152B2
公开(公告)日：2016-08-02
申请号：US14273648
申请日：2014-05-09
Inventor： Yasushi Tomioka , Hidetoshi Abe , Katsumi Kondo
IPC: G02F1/1337 , G02F1/1343 , C09K19/54
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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75.发明授权公开(公告)号：US09134574B2
公开(公告)日：2015-09-15
申请号：US14603334
申请日：2015-01-22
Inventor： Noboru Kunimatsu , Chikae Matsui , Hidehiro Sonoda , Yuko Matsumoto , Shoichi Uchino , Masaki Matsumori , Yasushi Tomioka
IPC: G02F1/141 , G02F1/1337 , H01L27/12
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 including a TFT substrate having an alignment film formed thereon, an opposing substrate, and a liquid crystal layer sandwiched therebetween. The alignment film on the TFT substrate includes a photolytic polymer made from a first precursor including cyclobutane, and a non-photolytic polymer made from a second precursor. The method includes the steps of depositing a mixture material including the first precursor and the second precursor in which the second precursor settles more on an upper surface of the TFT substrate than the first precursor, imidizing the mixture material, and irradiating the mixture material with ultraviolet light for photo-alignment, and after irradiating, heating the mixture material to form the alignment film.
Abstract translation: 一种制造液晶显示装置的方法，该液晶显示装置包括其上形成有取向膜的TFT基板，相对基板和夹在其间的液晶层。 TFT基板上的取向膜包括由包含环丁烷的第一前体制成的光解聚合物和由第二前体制成的非光解聚合物。 该方法包括以下步骤：将包含第一前体和第二前体的混合材料沉积在第二前体中，其中第二前体比第一前体沉淀在TFT基板的上表面上，对混合物进行酰亚胺化，并用紫外线照射混合材料 用于光取向的光，并且在照射之后，加热混合物材料以形成取向膜。
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Patent Agency Ranking
公开(公告)号：US12207542B2
公开(公告)日：2025-01-21
申请号：US17655448
申请日：2022-03-18
Applicant: Japan Display Inc.
Inventor： Yasushi Tomioka , Akio Takimoto
Abstract: A method for manufacturing a photoelectric conversion element according to an aspect includes an active layer forming step of forming an active layer having a repeating unit represented by Chemical Formula 1. The active layer forming step includes: a first layer forming step of forming a first layer by applying polyamic acid serving as a precursor; a first heating step of heating the first layer at 120° C. for 20 minutes to 60 minutes; and a second heating step of heating the first layer at 230° C. to 280° C. for 10 minutes.
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公开(公告)号：US11906857B2
公开(公告)日：2024-02-20
申请号：US18140006
申请日：2023-04-27
Applicant: Japan Display Inc.
Inventor： Yasushi Tomioka , Yosuke Hyodo , Hidehiro Sonoda , Noboru Kunimatsu
IPC: G02F1/1343 , G02F1/1368 , G02F1/1362 , G02F1/1333 , G02F1/1335 , H01L27/12 , G02F1/1337
CPC classification number: G02F1/134363 , G02F1/1368 , G02F1/133345 , G02F1/133512 , G02F1/133514 , G02F1/133788 , G02F1/136227 , H01L27/1218 , G02F2202/02
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：US11650467B2
公开(公告)日：2023-05-16
申请号：US17945789
申请日：2022-09-15
Applicant: Japan Display Inc.
Inventor： Yasushi Tomioka , Toshimasa Ishigaki , Hidehiro Sonoda , Sumito Ueta
IPC: G02F1/136 , G02F1/1362 , G02F1/1337 , G02F1/1333 , G02F1/1335 , G02F1/1368
CPC classification number: G02F1/136227 , G02F1/1337 , G02F1/1368 , G02F1/133345 , G02F1/133512 , G02F1/133707 , G02F1/133357 , G02F2201/121 , G02F2201/123
Abstract: To prevent a phenomenon that an alignment film material is difficult to flow into the through-hole where a diameter of a through-hole for connecting between a pixel electrode and a source electrode is reduced.
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.-
公开(公告)号：US11553606B2
公开(公告)日：2023-01-10
申请号：US17585559
申请日：2022-01-27
Applicant: Japan Display Inc.
Inventor： Hajime Yamaguchi , Yasushi Tomioka
Abstract: According to one embodiment, a display device includes a first submodule having a display panel, a second submodule having a cover member located on the display panel, and a first decoupling layer located between the first submodule and the second submodule, and each of the first submodule and the second submodule has a single neutral plane.
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公开(公告)号：US11480833B2
公开(公告)日：2022-10-25
申请号：US17475403
申请日：2021-09-15
Applicant: Japan Display Inc.
Inventor： Yasushi Tomioka , Yosuke Hyodo , Hidehiro Sonoda , Noboru Kunimatsu
IPC: G02F1/13 , G02F1/1343 , G02F1/1362 , G02F1/1333 , G02F1/1335 , G02F1/1368 , H01L27/12 , G02F1/1337
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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