公开(公告)号：US12232360B2

公开(公告)日：2025-02-18

申请号：US18655382

申请日：2024-05-06

Applicant: Japan Display Inc.

Inventor： Yuko Matsumoto

IPC: H10K59/131 ,  H10K59/121

Abstract: A display device according to an embodiment of the present invention includes: a base material including a display region having a plurality of pixels and a frame region; a lower electrode provided in each of the plurality of pixels; an organic material layer arranged on the lower electrode; an upper electrode arranged on the organic material layer and covering the display region; a conductor portion provided in the frame region and connected to the upper electrode; and a rib provided on the conductor portion, wherein the upper electrode is arranged on the conductor portion via the rib, a first contact portion where the upper electrode and the conductor portion contact each other is located in the frame region, the rib has a side surface located at an opposite side of the first contact portion from the display region, and an end portion of the upper electrode faces the side surface.

公开(公告)号：US11621404B2

公开(公告)日：2023-04-04

申请号：US17340717

申请日：2021-06-07

Applicant: Japan Display Inc.

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

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

Abstract: A display device has a first electrode provided corresponding to each of a plurality of pixels in a region in which the plurality of pixels is provided, a second electrode provided over the plurality of pixels and extending to a contact region provided outside the pixel region, a light emitting layer provided between the first electrode and the second electrode, a third electrode provided in the contact region, an organic insulating layer covering the third electrode and provided with a contact hole exposing the third electrode, and a connection portion between the second electrode and the third electrode in the contact hole, wherein the maximum distance between any two points on the outer periphery of the connection portion is 1 μm or more and 100 μm or less.

公开(公告)号：US11175760B2

公开(公告)日：2021-11-16

申请号：US17014080

申请日：2020-09-08

Applicant: Japan Display Inc.

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

IPC: G06F3/041 ,  H01L51/52 ,  H01L27/32 ,  H01L51/56

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：US11056668B2

公开(公告)日：2021-07-06

申请号：US16445782

申请日：2019-06-19

Applicant: Japan Display Inc.

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

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

Abstract: A display device has a first electrode provided corresponding to each of a plurality of pixels in a region in which the plurality of pixels is provided, a second electrode provided over the plurality of pixels and extending to a contact region provided outside the pixel region, a light emitting layer provided between the first electrode and the second electrode, a third electrode provided in the contact region, an organic insulating layer covering the third electrode and provided with a contact hole exposing the third electrode, and a connection portion between the second electrode and the third electrode in the contact hole, wherein the maximum distance between any two points on the outer periphery of the connection portion is 1 μm or more and 100 μm or less.

公开(公告)号：US10608070B2

公开(公告)日：2020-03-31

申请号：US16135102

申请日：2018-09-19

Applicant: Japan Display Inc.

Inventor： Yuko Matsumoto ,  Toshihiro Sato

IPC: H01L51/52 ,  H01L51/50 ,  H01L27/32 ,  H01L27/28 ,  H01L51/56

Abstract: An organic EL display device includes: a lower electrode; an upper electrode; a first organic layer which is disposed between the lower electrode and the upper electrode and is formed of a plurality of layers including a light emitting layer formed of an organic material that emits light; a metal wire that extends between the pixels within the display region; and a second organic layer which is formed of a plurality of layers the same as that of the first organic layer and which comes into contact with a part of the metal wire and does not come into contact with the first organic layer. The upper electrode comes into contact with the metal wire in the periphery of the second organic layer. Accordingly, it is possible to uniformize the potential of the upper electrode without reducing the light emission area.

公开(公告)号：US10473986B2

公开(公告)日：2019-11-12

申请号：US16212765

申请日：2018-12-07

Applicant: Japan Display Inc.

Inventor： Yasushi Tomioka ,  Noboru Kunimatsu ,  Yosuke Hyodo ,  Toshiki Kaneko ,  Yuko Matsumoto

IPC: G02F1/1339 ,  G02F1/1362 ,  G02F1/1368

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.

公开(公告)号：US10345943B2

公开(公告)日：2019-07-09

申请号：US15986140

申请日：2018-05-22

Applicant: Japan Display Inc.

Inventor： Yuko Matsumoto

IPC: G06F3/041

Abstract: A circuitry layer includes a display area and a peripheral area outside the display area, the circuitry layer including display elements, the circuitry layer including first interconnects connected to the respective display elements. A touch sensing layer includes touch electrodes overlapped with the display area, the touch sensing layer including second interconnects overlapped with the peripheral area and connected to the respective touch electrodes. A spacer layer is interposed at least between the first interconnects and the second interconnects. Each touch electrode and a corresponding one of the display elements closest thereto are away from each other by a first distance in a thickness direction. Each second interconnect and a corresponding one of the first interconnects closest thereto are away from each other by a second distance in the thickness direction. The second distance is larger than the first distance.

公开(公告)号：US09785013B2

公开(公告)日：2017-10-10

申请号：US14863100

申请日：2015-09-23

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: C09K19/00 ,  G02F1/1337 ,  G02F1/1343 ,  G02F1/1368 ,  H01L27/12 ,  C09K19/56

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 liquid crystal display device includes a TFT substrate having a first alignment film and an opposing substrate having a second alignment film with liquid crystals sandwiched therebetween. One of the first and second alignment films, comprises a first polyimide produced via polyamide acid ester containing cyclobutane as a precursor and a second polyimide produced via polyamide acid as a precursor. The polyamide acid has a higher polarity than that of the polyamide acid ester. The one of the first and second alignment films is responsive to photo-alignment. A first side of the one of the first and second alignment films is adjacent to the liquid crystals, and a second side thereof is closer to one of the TFT substrate and the counter substrate than the first side. The first side contains more of the first polyimide and less of the second polyimide than the second side.

公开(公告)号：US09583550B2

公开(公告)日：2017-02-28

申请号：US15185181

申请日：2016-06-17

Applicant: Japan Display Inc.

Inventor： Yusuke Tada ,  Yuko Matsumoto ,  Toshihiro Sato

IPC: H01L27/14 ,  H01L27/32

CPC classification number: H01L27/3279 ,  H01L51/5228

Abstract: A display device includes a plurality of pixel electrodes, a common electrode disposed from a display area to a peripheral area continuously, a light emitting layer disposed between the plurality of pixel electrodes and the common electrode, and a plurality of auxiliary wirings electrically connecting to the common electrode and located from the display area to the peripheral area continuously. The common electrode includes overlapping areas where the common electrode is in contact with and overlaps the auxiliary wiring in the peripheral area, and includes a thick film portion in at least a portion of the overlapping areas. A thickness of the thick film portion is larger than that of an area other than the overlapping areas.

Abstract translation: 显示装置包括多个像素电极，从显示区域连续设置到周边区域的公共电极，设置在多个像素电极和公共电极之间的发光层，以及多个辅助布线，电连接到 公共电极，连续地从显示区域到外围区域。 公共电极包括共用电极与周边区域中的辅助布线接触并与其重叠的重叠区域，并且在重叠区域的至少一部分中包括厚膜部分。 厚膜部分的厚度大于重叠区域以外的区域的厚度。

公开(公告)号：US09520456B2

公开(公告)日：2016-12-13

申请号：US14469628

申请日：2014-08-27

Applicant: Japan Display Inc.

Inventor： Yuko Matsumoto ,  Toshihiro Sato

IPC: H01L51/50 ,  H01L27/32

CPC classification number: H01L27/3276 ,  H01L27/3246 ,  H01L27/3248 ,  H01L27/3262 ,  H01L27/3279 ,  H01L51/5203 ,  H01L51/5234 ,  H01L51/56

Abstract: An organic EL display device includes: a lower electrode; an upper electrode; a first organic layer which is disposed between the lower electrode and the upper electrode and is formed of a plurality of layers including a light emitting layer formed of an organic material that emits light; a metal wire that extends between the pixels within the display region; and a second organic layer which is formed of a plurality of layers the same as that of the first organic layer and which comes into contact with a part of the metal wire and does not come into contact with the first organic layer. The upper electrode comes into contact with the metal wire in the periphery of the second organic layer. Accordingly, it is possible to uniformise the potential of the upper electrode without reducing the light emission area.

Abstract translation: 有机EL显示装置包括：下电极; 上电极; 第一有机层，其设置在下电极和上电极之间，并且由包括由发光的有机材料形成的发光层的多个层形成; 在显示区域内的像素之间延伸的金属线; 以及第二有机层，其由与第一有机层相同的多个层形成并且与金属线的一部分接触并且不与第一有机层接触。 上电极与第二有机层周边的金属线接触。 因此，可以在不减少发光面积的情况下使上电极的电位均匀化。