公开(公告)号：US20220216281A1

公开(公告)日：2022-07-07

申请号：US17570396

申请日：2022-01-07

Applicant: Japan Display Inc.

Inventor： Akihiro HANADA ,  Toshinari SASAKI ,  Ryo ONODERA

IPC: H01L27/32

Abstract: According to one embodiment, in a first concentration of an impurity element contained in a first impurity region, a second concentration of the impurity element contained in a second impurity region, a third concentration of the impurity element contained in a third impurity region, and a fourth concentration of the impurity element contained in a high-concentration impurity region, the third concentration is equal to the fourth concentration, the third concentration is higher than the first concentration, and the first concentration is higher than the second concentration.

公开(公告)号：US20220215784A1

公开(公告)日：2022-07-07

申请号：US17700631

申请日：2022-03-22

Applicant: Japan Display Inc.

Inventor： Akihiro OGAWA

IPC: G09G3/00 ,  H01L27/15 ,  H01L33/62 ,  H01L33/38

Abstract: A method for repairing a display device, the display device comprising: a plurality of inorganic light emitters arrayed in a matrix (row-column configuration); and a counter electrode provided in a traveling direction of light emitted from the inorganic light emitters and coupled to the inorganic light emitters, the method comprising steps of: detecting a defective inorganic light emitter serving as one of the inorganic light emitters and having a defect; and removing a target portion of the counter electrode by irradiating the target portion with light while leaving the defective inorganic light emitter unremoved, the target portion including a portion between a portion coupled to the defective inorganic light emitter and a portion coupled to an inorganic light emitter adjacently disposed with the defective inorganic light emitter.

公开(公告)号：US11378841B2

公开(公告)日：2022-07-05

申请号：US17220503

申请日：2021-04-01

Applicant: Japan Display Inc.

Inventor： Masafumi Okada ,  Nobuyuki Suzuki ,  Makoto Hasegawa

IPC: G09F13/04 ,  G02F1/13357 ,  G02F1/1335

Abstract: According to one embodiment, a light emitting device includes a light guide plate with a plurality of first protrusion parts arranged along a first direction and extending along a second direction which crosses the first direction, and a prism sheet, wherein a cross-sectional shape of each of the first protrusion parts along the first direction has an apex angle between 55 degrees and 65 degrees, inclusive, the light guide plate includes a plurality of second protrusion parts which extend along the first direction and are arranged along the second direction, and a cross-sectional shape of each of the second protrusion parts along the second direction has a base angle between 1 degree and 3 degrees, inclusive.

公开(公告)号：US20220209084A1

公开(公告)日：2022-06-30

申请号：US17551182

申请日：2021-12-15

Applicant: Japan Display Inc.

Inventor： Kenichi TAKEMASA ,  Kazuyuki YAMADA ,  Keisuke ASADA ,  Daiki ISONO

IPC: H01L33/62 ,  H01L25/075 ,  H01L33/38

Abstract: An LED module includes a first electrode, a second electrode arranged isolated from the first electrode, a first bump on the first electrode, a second bump on the second electrode, a protrusion between the first electrode and the second electrode, and an LED chip having a first pad electrode and a second pad electrode. The protrusion has insulating properties, the first pad electrode of the LED chip is disposed opposite the first electrode, the second pad electrode is disposed opposite the second electrode, the first pad electrode is connected to the first electrode through the first bump, and the second pad electrode is connected to the second electrode through the second bump.

公开(公告)号：US20220209014A1

公开(公告)日：2022-06-30

申请号：US17561996

申请日：2021-12-27

Applicant: Japan Display Inc.

Inventor： Takuo KAITOH ,  Akihiro HANADA ,  Takashi OKADA

IPC: H01L29/786

Abstract: According to one embodiment, a semiconductor device includes a first insulating film formed of silicon nitride, a second insulating film disposed above the first insulating film and formed of silicon oxide, including a first region and a peripheral region surrounding the first region and thinner than the first region, an oxide semiconductor disposed on the second insulating film and intersecting the first region, a source electrode overlapping the peripheral region and a drain electrode overlapping the peripheral region. The first region is located between the source electrode and the drain electrode and separated from the source electrode and the drain electrode.

公开(公告)号：US20220208795A1

公开(公告)日：2022-06-30

申请号：US17694754

申请日：2022-03-15

Applicant: Japan Display Inc.

Inventor： Isao SUZUMURA

IPC: H01L27/12 ,  G02F1/1368 ,  H01L27/32 ,  H01L29/40 ,  H01L29/423

Abstract: The purpose of the present invention is to decrease the resistance of the drain and source in the TFT of the oxide semiconductor as well as to have stable Vd-Id characteristics of the TFT. The structure of the present invention is as follows: A display device having plural pixels including thin film transistors (TFT) having oxide semiconductor films comprising: a gate insulating film formed on the oxide semiconductor film, an aluminum oxide film formed on the gate insulating film, a gate electrode formed on the aluminum oxide film, a side spacer formed on both sides of the gate electrode, and an interlayer insulating film formed on the gate electrode, the side spacer, a drain and a source, wherein in a plan view, and in a direction from the drain to the source, a length of the gate electrode is shorter than a length of the aluminum oxide film.

公开(公告)号：US11374025B2

公开(公告)日：2022-06-28

申请号：US16816776

申请日：2020-03-12

Applicant: Japan Display Inc.

Inventor： Yohei Yamaguchi

IPC: H01L27/12 ,  H01L27/01 ,  H01L29/66 ,  H01L29/786 ,  H01L29/40 ,  H01L29/423 ,  G02F1/1343 ,  G09G3/36 ,  G02F1/1368

Abstract: The purpose of the invention is to form a stable oxide semiconductor TFT in a display device. The concrete structure is: A display device having a TFT substrate that includes a TFT having an oxide semiconductor layer comprising: the oxide semiconductor layer is formed on a first insulating film that is formed by a silicon oxide layer, the oxide semiconductor layer and an aluminum oxide film are directly formed on the first insulating film. The first insulating film becomes oxygen rich when the aluminum oxide film is formed on the first insulating film by sputtering. Oxygens in the first insulating film is effectively confined in the first insulating film, eventually, the oxygens diffuse to the oxide semiconductor for a stable operation of the oxide semiconductor TFT.

公开(公告)号：US20220199955A1

公开(公告)日：2022-06-23

申请号：US17691179

申请日：2022-03-10

Applicant: Japan Display Inc.

Inventor： Hiraaki KOKAME

IPC: H01L51/52 ,  H01L51/56

Abstract: An oxidation protective film is continuously provided from the display area to the frame area so as to be in contact with the upper electrode. A first inorganic sealing film is provided on the substrate so as to cover the upper electrode and the oxidation protective film. An organic sealing film is provided on the first inorganic sealing film. A second inorganic sealing film is provided on the organic sealing film and is in direct contact with the first inorganic sealing film in a periphery of the organic sealing film. The oxidation protective film covers at least the contact area of the upper electrode in the frame area and is not provided in the periphery in which the first inorganic sealing film and the second inorganic sealing film are in direct contact with each other.

公开(公告)号：US20220197096A1

公开(公告)日：2022-06-23

申请号：US17654101

申请日：2022-03-09

Applicant: Japan Display Inc.

Inventor： Toshiharu MATSUSHIMA ,  Hitoshi TANAKA

IPC: G02F1/1362 ,  G02F1/1343 ,  G02F1/1335

Abstract: According to one embodiment, A display device including a first substrate, a second substrate, and a liquid crystal layer, wherein the first substrate includes a first common electrode, a pixel electrode, a scanning line, and a signal line, the first common electrode includes a shaft portion extending in the second direction, a first branch portion extending in the first direction from the shaft portion, and a second branch portion extending in the first direction from the shaft portion, a first opening and a second opening are provided, the first branch portion overlaps the pixel electrode and the first opening, and the second branch portion overlaps the scanning line between the first opening and the second opening.

公开(公告)号：US20220197075A1

公开(公告)日：2022-06-23

申请号：US17692848

申请日：2022-03-11

Applicant: Japan Display Inc.

Inventor： Gen KOIDE

IPC: G02F1/1345 ,  G02F1/1333 ,  G02F1/1343 ,  G09G3/36 ,  G06F3/041 ,  G06F3/044

Abstract: According to one embodiment, a display device includes a first common electrode and a second common electrode arranged in a first direction, a first switch unit selectively supplying a first drive signal or a second drive signal different from the first drive signal to the first common electrode, and a second switch unit selectively supplying the first drive signal or the second drive signal to the second common electrode, wherein the second common electrode and the first switch unit are arranged in a second direction intersecting the first direction, the first switch unit comprises a first switch circuit and a second switch circuit arranged in the second direction.