公开(公告)号：US09608045B2

公开(公告)日：2017-03-28

申请号：US14551136

申请日：2014-11-24

Applicant: Japan Display Inc.

Inventor： Yuko Matsumoto ,  Masahiko Suzuki ,  Hiroshi Oooka ,  Takeshi Ookawara ,  Kouhei Takahashi

IPC: H01L27/32 ,  H01L51/50 ,  H01L51/52

CPC classification number: H01L27/322 ,  H01L51/52 ,  H01L51/5209 ,  H01L51/5225

Abstract: A display device includes a first substrate, an organic EL layer formed on the first substrate and curved in each pixel, and color filters disposed in the respective pixels, and curved to match the organic EL layer. With this configuration, a change in the chromaticity and brightness of the display device depending on a viewing angle of a user is reduced.

公开(公告)号：US09419068B2

公开(公告)日：2016-08-16

申请号：US14678021

申请日：2015-04-03

Applicant: Japan Display Inc.

Inventor： Yuko Matsumoto

IPC: H05B33/14 ,  H05B33/06 ,  H05B33/04 ,  H05B33/10 ,  H01L27/32

CPC classification number: H01L27/3297 ,  H01L27/3276 ,  H01L2227/323 ,  H01L2251/5338

Abstract: An organic EL display device includes: a lower electrode disposed in each of pixels; an upper electrode disposed so as to cover the whole of the display area; an organic layer disposed between the lower electrode and the upper electrode and composed of a plurality of layers including a light-emitting layer composed of an organic material; a wire formed outside the display area and composed of conductive material; and a tapered structure layer formed on the wire and including tapered portions at each of which a side surface portion not in contact with the wire extends so as to overhang the wire. At least one layer of the organic layer is formed on the tapered structure layer. The tapered structure layer forms a contact hole surrounded by the side surface portions. The upper electrode is in contact with the wire through the contact hole.

Abstract translation: 有机EL显示装置包括：设置在每个像素中的下电极; 设置为覆盖整个显示区域的上电极; 设置在下电极和上电极之间并由包括由有机材料构成的发光层的多个层构成的有机层; 在显示区域外部形成由导电材料构成的线; 以及形成在所述导线上的锥形结构层，并且在与所述导线不接触的侧面部分延伸的每个所述锥形部分上延伸以使所述导线伸出。 至少一层有机层形成在锥形结构层上。 锥形结构层形成由侧面部包围的接触孔。 上电极通过接触孔与电线接触。

公开(公告)号：US20150049271A1

公开(公告)日：2015-02-19

申请号：US14527858

申请日：2014-10-30

Applicant: Japan Display Inc. ,  Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Shoichi Uchino ,  Noboru Kunimatsu ,  Hidehiro Sonoda ,  Chikae Matsui ,  Yuko Matsumoto ,  Masaki Matsumori ,  Yasushi Tomioka ,  Jun Tanaka

IPC: G02F1/1337

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。

公开(公告)号：US20150011032A1

公开(公告)日：2015-01-08

申请号：US14493893

申请日：2014-09-23

Applicant: Japan Display Inc. ,  Panasonic Liquid Crystal Display Co., Ltd.

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 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。

公开(公告)号：US08854582B2

公开(公告)日：2014-10-07

申请号：US14167411

申请日：2014-01-29

Applicant: Japan Display Inc. ,  Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Noboru Kunimatsu ,  Chikae Matsui ,  Hidehiro Sonoda ,  Yuko Matsumoto ,  Shoichi Uchino ,  Masaki Matsumori ,  Yasushi Tomioka

IPC: G02F1/141 ,  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。

公开(公告)号：US12072581B2

公开(公告)日：2024-08-27

申请号：US18143147

申请日：2023-05-04

Applicant: Japan Display Inc. ,  Panasonic Intellectual Property Corporation of America

Inventor： Shoichi Uchino ,  Noboru Kunimatsu ,  Hidehiro Sonoda ,  Chikae Matsui ,  Yuko Matsumoto ,  Tomio Yaguchi ,  Toshiki Kaneko ,  Jun Tanaka

IPC: G03F7/30 ,  G02F1/1337 ,  G03F7/36 ,  C08G73/10 ,  C09D179/08 ,  G02F1/13 ,  G02F1/1333

CPC classification number: G02F1/133788 ,  G03F7/30 ,  G03F7/36 ,  C08G73/1078 ,  C09D179/08 ,  C09K2323/027 ,  G02F1/1316 ,  G02F1/133354

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.

公开(公告)号：US11868552B2

公开(公告)日：2024-01-09

申请号：US17979816

申请日：2022-11-03

Applicant: Japan Display Inc.

Inventor： Yuko Matsumoto ,  Hajime Akimoto ,  Mitsuhide Miyamoto ,  Yusuke Tada

IPC: H10K50/844 ,  H10K59/40 ,  H10K71/00 ,  H10K59/131 ,  G06F3/041

CPC classification number: G06F3/041 ,  H10K50/844 ,  H10K59/40 ,  H10K71/00 ,  G06F2203/04103 ,  H10K59/131

Abstract: The method for manufacturing a display device includes forming a light emitting element and a terminal on a substrate, forming a sealing film including a first inorganic insulating film and a second inorganic insulating film to cover the light emitting element and the terminal, forming a resist having a taper shape in which a thickness of an end portion on the sealing film becomes thinner as it goes to the terminal side by using a gray-tone mask, forming a taper shape in which thicknesses in end portions of the first inorganic insulating film and the second inorganic insulating film becomes thinner as it goes to the terminal side by etching, forming a touch electrode above the sealing film and forming wiring connected to the terminal via the end portions together with connecting to the touch electrode for detecting a touched position.

公开(公告)号：US10581006B2

公开(公告)日：2020-03-03

申请号：US15956866

申请日：2018-04-19

Applicant: Japan Display Inc.

Inventor： Yuko Matsumoto

IPC: H01L51/50 ,  H01L51/52 ,  H01L27/32 ,  H01L51/56 ,  G06F1/16 ,  G06F3/044

Abstract: Disclosed is a display device which includes: a substrate having a first edge portion and a second edge portion; a plurality of light-emitting elements over the substrate; a passivation film over the plurality of light-emitting elements; a barrier layer over the passivation film; and a touch sensor over the barrier layer. The barrier layer has a first sidewall along the first edge portion and a second sidewall along the second edge portion, and a first angle between a top surface of the substrate and the first sidewall is different from a second angle between the top surface and the second sidewall.

公开(公告)号：US20200019281A1

公开(公告)日：2020-01-16

申请号：US16579358

申请日：2019-09-23

Applicant: Japan Display Inc.

Inventor： Mitsuhide MIYAMOTO ,  Hajime Akimoto ,  Yuko Matsumoto ,  Yusuke Tada

IPC: G06F3/044

Abstract: A display device according to an embodiment of the invention includes: a base insulating film; a sealing film which covers the base insulating film; a plurality of first electrodes which are two-dimensionally arranged on the sealing film, the first electrodes adjacent in a first direction being connected via a first connection line; a plurality of second electrodes which are two-dimensionally arranged, the second electrodes adjacent in the second direction being connected via a second connection line intersecting the first connection line in plan view; an interlayer insulating film which is interposed between the first connection line and the second connection line and which fills a step formed by an outer edge of the sealing film and the base insulating film; and a lead-out wiring which is connected to the first electrode or the second electrode and which passes over a portion of the interlayer insulating film which fills the step.

公开(公告)号：US20190294284A1

公开(公告)日：2019-09-26

申请号：US16434736

申请日：2019-06-07

Applicant: Japan Display Inc.

Inventor： Hajime AKIMOTO ,  Mitsuhide Miyamoto ,  Yuko Matsumoto ,  Yusuke Tada

IPC: G06F3/041 ,  G06F3/044 ,  H01L51/52 ,  H01L27/32

Abstract: Disclosed is a display device having a first layer and a second layer over the second layer. The first layer possesses a display region including: a plurality of first sub-pixels; a plurality of second sub-pixels; a plurality of third sub-pixels; a partition wall sandwiched by two adjacent sub-pixels; and a sealing film thereover. The second layer includes: a first touch electrode overlapping with the partition wall and arranged along the partition wall; and a second touch electrode overlapping with the partition wall, arranged along the partition wall, and intersecting the first touch electrode. The first touch electrode and the second touch electrode exist in the same layer. The first touch electrode and the second touch electrode each have a plurality of openings. Among the number of the first sub-pixels, the number of the second sub-pixels, and the number of the third sub-pixels, one is different from the other two.