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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
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.
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公开(公告)号：US20180203169A1
公开(公告)日：2018-07-19
申请号：US15828458
申请日：2017-12-01
Applicant: Japan Display Inc.
Inventor： Kazufumi Watabe , Hiroshi Kawanago
IPC: G02B5/20 , G02F1/1335 , G02F1/1368 , G02F1/1333 , H01L27/12 , H01L29/786 , H01L21/428
CPC classification number: G02B5/208 , G02B5/26 , G02F1/133305 , G02F1/133509 , G02F1/1368 , G02F2001/13685 , G02F2203/11 , H01L21/428 , H01L27/1218 , H01L27/1225 , H01L27/1262 , H01L27/127 , H01L27/3262 , H01L27/3272 , H01L29/78603 , H01L29/7869 , H01L51/0097
Abstract: The purpose of the present invention is to realize a flexible display includes a resin substrate and a TFT having an oxide. The structure of the invention is as follows. A display device comprising: a substrate formed by resin, an inorganic insulating film and a thin film transistor including a semiconductor, wherein an infra-red light reflecting film is formed between the substrate and the thin film transistor.
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公开(公告)号：US11581488B2
公开(公告)日：2023-02-14
申请号：US17106818
申请日：2020-11-30
Applicant: Japan Display Inc.
Inventor： Hiroshi Kawanago , Kazufumi Watabe
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.
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公开(公告)号：US10529925B2
公开(公告)日：2020-01-07
申请号：US15831452
申请日：2017-12-05
Applicant: Japan Display Inc.
Inventor： Hiroshi Kawanago , Kazufumi Watabe
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.
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公开(公告)号：US09997737B2
公开(公告)日：2018-06-12
申请号：US15070604
申请日：2016-03-15
Applicant: Japan Display Inc.
Inventor： Kazufumi Watabe , Hiroshi Kawanago
CPC classification number: H01L51/5253 , H01L27/322 , H01L51/0009 , H01L51/0016 , H01L51/524 , H01L51/56 , H01L2227/326 , H01L2251/5338 , H01L2251/568
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.
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Patent Agency Ranking
公开(公告)号：US20180083224A1
公开(公告)日：2018-03-22
申请号：US15823659
申请日：2017-11-28
Applicant: Japan Display Inc.
Inventor： Kazufumi WATABE , Hiroshi Kawanago
CPC classification number: H01L51/5253 , H01L27/322 , H01L51/0009 , H01L51/0016 , H01L51/524 , H01L51/56 , H01L2227/326 , H01L2251/5338 , H01L2251/568
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.
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公开(公告)号：US09780307B2
公开(公告)日：2017-10-03
申请号：US15377128
申请日：2016-12-13
Applicant: Japan Display Inc.
Inventor： Kazufumi Watabe , Hiroshi Kawanago
CPC classification number: H01L51/003 , H01L27/3244 , H01L27/3293 , H01L51/0024 , H01L51/0097 , H01L51/5253 , Y02E10/549
Abstract: A glass substrate that corresponds to a plurality of product regions and a first grid region that surrounds each of the plurality of product regions and is grid-like is prepared. A protective film that is harder than the glass substrate is formed in the first grid region. A resin layer is formed so as to cover the protective film and the glass substrate. A part of the resin layer is removed by blast processing in a second grid region that avoids the plurality of product regions, overlaps with the first grid region and surrounds each of the plurality of product regions. A circuit layer is formed on the resin layer. The glass substrate is cut along lines that pass through the second grid region where the part of the resin layer is removed. The glass substrate is peeled off from the resin layer.
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公开(公告)号：US11616104B2
公开(公告)日：2023-03-28
申请号：US16910084
申请日：2020-06-24
Applicant: Japan Display Inc.
Inventor： Hiroshi Kawanago , Kazufumi Watabe
Abstract: The purpose of the invention is to manufacture the flexible display device having resin substrate with high yield. The structure is as follows.
A manufacturing method of a display device comprising: forming a first layer of a semiconductor on a glass substrate, forming a second layer of a first metal on the first layer, forming a third layer of a first insulating material on the second layer, forming a fourth layer of a second metal or a metal oxide on the third layer, coating precursor of polyimide on the fourth layer, making a polyimide substrate by baking the precursor of polyimide to make a polyimide substrate, forming pixels on the polyimide substrate, separating the polyimide substrate and the glass substrate by making peel off between the second layer and the third layer with irradiation of a laser beam on the first layer.-
公开(公告)号：US11482544B2
公开(公告)日：2022-10-25
申请号：US16924281
申请日：2020-07-09
Applicant: Japan Display Inc.
Inventor： Hiroshi Kawanago , Kazufumi Watabe
IPC: H01L27/12 , H01L51/00 , G02F1/1333
Abstract: The purpose of the invention is to manufacture the flexible display device having resin substrate with high throughput and high yield. The structure of the invention is as follows: a display device having plural pixels on a resin substrate comprising: a first layer made of a metal oxide film is formed on a surface of the resin substrate opposite to a surface that the plural pixels are formed, a second layer made of a transparent conductive film is formed in contact with a surface, which is opposite side to the resin substrate, of the first layer.
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公开(公告)号：US20180102478A1
公开(公告)日：2018-04-12
申请号：US15831452
申请日：2017-12-05
Applicant: Japan Display Inc.
Inventor： Hiroshi Kawanago , Kazufumi Watabe
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.
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