公开(公告)号：US10541278B2

公开(公告)日：2020-01-21

申请号：US15660276

申请日：2017-07-26

Applicant: Japan Display Inc.

Inventor： Hidekazu Miyake ,  Kazufumi Watabe ,  Yoshinori Ishii

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

Abstract: The organic EL display device includes a TFT substrate on which a scanning line extends in a first direction, a video signal line extends in a second direction, and a pixel having an anode, an organic EL layer, and a cathode is formed on a region enclosed with the scanning line and the video signal line. A first detection electrode extends in the first direction above the pixel via insulation films. A counter substrate is disposed while covering the first detection electrode via an adhesive. A second detection electrode extends in the second direction at the outer side of the counter substrate.

公开(公告)号：US20190041932A1

公开(公告)日：2019-02-07

申请号：US16131477

申请日：2018-09-14

Applicant: Japan Display Inc.

Inventor： Akihiro HANADA ,  Hajime Watakabe ,  Kazufumi Watabe

IPC: G06F1/26 ,  H04L29/08 ,  H04L12/24 ,  H02J13/00 ,  H04L12/853 ,  H04Q9/02

Abstract: According to one embodiment, a semiconductor device includes an insulating substrate, a first semiconductor layer formed of silicon and positioned above the insulating substrate, a second semiconductor layer formed of a metal oxide and positioned above the first semiconductor layer, a first insulating film formed of a silicon nitride and positioned between the first semiconductor layer and the second semiconductor layer, and a block layer positioned between the first semiconductor film and the second semiconductor layer, the block layer hydrogen diffusion of which is lower than that of the first insulating film.

公开(公告)号：US20180040671A1

公开(公告)日：2018-02-08

申请号：US15660276

申请日：2017-07-26

Applicant: Japan Display Inc.

Inventor： Hidekazu Miyake ,  Kazufumi Watabe ,  Yoshinori Ishii

IPC: H01L27/32 ,  G06F3/041

CPC classification number: H01L27/323 ,  G06F3/0412 ,  G06F3/044 ,  H01L27/3276

Abstract: The organic EL display device includes a TFT substrate on which a scanning line extends in a first direction, a video signal line extends in a second direction, and a pixel having an anode, an organic EL layer, and a cathode is formed on a region enclosed with the scanning line and the video signal line. A first detection electrode extends in the first direction above the pixel via insulation films. A counter substrate is disposed while covering the first detection electrode via an adhesive. A second detection electrode extends in the second direction at the outer side of the counter substrate.

公开(公告)号：US09865817B2

公开(公告)日：2018-01-09

申请号：US15246707

申请日：2016-08-25

Applicant: Japan Display Inc.

Inventor： Hiroshi Kawanago ,  Kazufumi Watabe

IPC: H01L51/52 ,  H01L51/00 ,  H01L27/32 ,  H05B33/08

CPC classification number: H01L51/003 ,  H01L27/322 ,  H01L27/3244 ,  H01L51/5284 ,  H01L2227/323 ,  H01L2227/326 ,  H01L2251/5338 ,  H05B33/0896 ,  H05B33/10 ,  H05B33/12

Abstract: A method of manufacturing a display device, including: a stacking step of stacking, on a glass substrate, a sacrificial resin layer, a metal layer, a transparent metal oxide layer, a base material resin layer, and a functional layer including at least one of a pixel circuit-constituting layer driving a plurality of pixels and a color filter layer, in this order; a radiating step of radiating a pulsed light of a xenon flash lamp to the metal layer through the glass substrate and the sacrificial resin layer; and a detaching step of reducing a force of adhesion between the sacrificial resin layer and the metal layer with the pulsed light radiated in the radiating step, and detaching the sacrificial resin layer from the metal layer.

公开(公告)号：US12166135B2

公开(公告)日：2024-12-10

申请号：US18346927

申请日：2023-07-05

Applicant: Japan Display Inc.

Inventor： Yohei Yamaguchi ,  Kazufumi Watabe ,  Tomoyuki Ariyoshi ,  Osamu Karikome ,  Ryohei Takaya

IPC: H01L29/786 ,  H01L27/12 ,  H01L29/40 ,  H01L29/423 ,  H01L29/45 ,  H01L29/49

Abstract: The invention allows stable fabrication of a TFT circuit board used in a display device and having thereon an oxide semiconductor TFT. A TFT circuit board includes a TFT that includes an oxide semiconductor. The TFT has a gate insulating film formed on part of the oxide semiconductor and a gate electrode formed on the gate insulating film. A portion of the oxide semiconductor that is covered with the gate electrode 104 and a portion of the oxide semiconductor that is not covered with the gate electrode are both covered with a first interlayer insulating film. The first interlayer insulating film is covered with a first film 106, and the first film is covered with a first AlO film.

公开(公告)号：US11521990B2

公开(公告)日：2022-12-06

申请号：US17336620

申请日：2021-06-02

Applicant: Japan Display Inc.

Inventor： Isao Suzumura ,  Kazufumi Watabe ,  Yoshinori Ishii ,  Hidekazu Miyake ,  Yohei Yamaguchi

IPC: H01L27/12 ,  H01L27/32 ,  H01L29/786 ,  H01L29/51 ,  H01L29/24 ,  G02F1/1368 ,  G02F1/133 ,  G02F1/1362 ,  H01L29/417 ,  H01L29/423 ,  H01L29/49

Abstract: The object of the present invention is to make it possible to form an LTPS TFT and an oxide semiconductor TFT on the same substrate. A display device includes a substrate having a display region in which pixels are formed. The pixel includes a first TFT using an oxide semiconductor 109. An oxide film 110 as an insulating material is formed on the oxide semiconductor 109. A gate electrode 111 is formed on the oxide film 110. A first electrode 115 is connected to a drain of the first. TFT via a first through hole formed in the oxide film 110. A second electrode 116 is connected to a source of the first TFT via a second through hole formed in the oxide film 110.

公开(公告)号：US11442515B2

公开(公告)日：2022-09-13

申请号：US17034722

申请日：2020-09-28

Applicant: Japan Display Inc.

Inventor： Akihiro Hanada ,  Hajime Watakabe ,  Kazufumi Watabe

IPC: H01L27/12 ,  H01L29/786 ,  H01L29/423 ,  H01L29/51 ,  G06F1/26 ,  H02J13/00 ,  H04L41/069 ,  H04L47/2416 ,  H04L67/12 ,  H04Q9/02

Abstract: According to one embodiment, a semiconductor device includes an insulating substrate, a first semiconductor layer formed of silicon and positioned above the insulating substrate, a second semiconductor layer formed of a metal oxide and positioned above the first semiconductor layer, a first insulating film formed of a silicon nitride and positioned between the first semiconductor layer and the second semiconductor layer, and a block layer positioned between the first semiconductor film and the second semiconductor layer, the block layer hydrogen diffusion of which is lower than that of the first insulating film.

公开(公告)号：US10833134B2

公开(公告)日：2020-11-10

申请号：US16715008

申请日：2019-12-16

Applicant: Japan Display Inc.

Inventor： Hidekazu Miyake ,  Kazufumi Watabe ,  Yoshinori Ishii

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

Abstract: An EL display device includes a TFT substrate on which a scanning line extends in a first direction, a video signal line extends in a second direction, and an EL element having an anode, a luminous layer and a cathode. A protective film covers the scanning line, the video signal line and the EL element. A touch panel detection electrode is disposed above the protective film, and connected to a wiring which is disposed under the protective film via a through hole of the protective film. The touch panel detection electrode has an angle to intersect with the video signal line.

公开(公告)号：US10319943B2

公开(公告)日：2019-06-11

申请号：US15823659

申请日：2017-11-28

Applicant: Japan Display Inc.

Inventor： Kazufumi Watabe ,  Hiroshi Kawanago

IPC: H01L51/00 ,  H01L51/52 ,  H01L51/56 ,  H01L27/32

Abstract: A structure including a first resin layer and a second resin layer sandwiching a self-light emitting element layer, a first stopper layer, a first resin sacrificial layer and a first glass substrate which are stacked on the first resin layer on the opposite side of the self-light emitting element layer, and a second glass substrate stacked on the second resin layer is prepared. The first glass substrate is peeled off from the first resin sacrificial layer by irradiating the first glass substrate with a laser beam. The first resin sacrificial layer is decomposed by a chemical reaction using a gas. The first stopper layer has a resistance to the chemical reaction, and the first resin sacrificial layer is removed while leaving the first stopper layer in a step of decomposing the first resin sacrificial layer.

公开(公告)号：US10276812B2

公开(公告)日：2019-04-30

申请号：US15355194

申请日：2016-11-18

Applicant: Japan Display Inc.

Inventor： Kazufumi Watabe ,  Toshihiro Sato

IPC: H01L33/00 ,  H01L51/00 ,  H01L51/52 ,  H01L51/56 ,  H01L27/32

Abstract: Simple and high-precision processing, and narrowing of the frame are to be facilitated at the time of preparing display panels by multiple formation. After bonding a first substrate layer in which a plurality of element substrates is formed on a support plate and a second substrate layer in which a plurality of counter substrates is formed on a support plate, these substrate layers are divided into a plurality of display panels. Ridge-like ribs of a covalently or ionically bonding inorganic material are formed along edges of the element substrate and the counter substrate. The dividing includes scribing the support plates along the ribs, and flexing and breaking the support plates.