公开(公告)号：US20200328262A1

公开(公告)日：2020-10-15

申请号：US16910084

申请日：2020-06-24

Applicant: Japan Display Inc.

Inventor： Hiroshi KAWANAGO ,  Kazufumi WATABE

IPC: H01L27/32 ,  H01L51/00 ,  B32B15/08

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：US20160276625A1

公开(公告)日：2016-09-22

申请号：US15070604

申请日：2016-03-15

Applicant: Japan Display Inc.

Inventor： Kazufumi WATABE ,  Hiroshi KAWANAGO

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

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.

Abstract translation: 包含第一树脂层和夹着自发光元件层的第二树脂层的结构，第一阻挡层，第一树脂牺牲层和第一玻璃基板，层叠在第一树脂层的相反侧 自发光元件层和堆叠在第二树脂层上的第二玻璃基板。 通过用激光束照射第一玻璃基板，将第一玻璃基板从第一树脂牺牲层剥离。 第一树脂牺牲层通过使用气体的化学反应分解。 第一阻挡层具有对化学反应的阻力，并且在分解第一树脂牺牲层的步骤中留下第一阻挡层的同时除去第一树脂牺牲层。

公开(公告)号：US20210367172A1

公开(公告)日：2021-11-25

申请号：US17391518

申请日：2021-08-02

Applicant: Japan Display Inc.

Inventor： Hiroshi KAWANAGO

IPC: H01L51/00 ,  C03C27/04 ,  C03C17/42

Abstract: The purpose of the invention is to manufacture the device having a resin substrate without using expensive machine like laser apparatus and so forth, and to raise a yield rate of the material. The structure is as follows.
A device having a resin substrate:
in which the resin substrate has a surface, on which a functional layer is formed, and a back surface, which is rear side from the surface,
the back surface has a peripheral area and an inner area, which is located inner side than the peripheral area in a plan view,
the peripheral area has a rough surface whose surface roughness is larger compared with a surface roughness of the inner area.

公开(公告)号：US20210098502A1

公开(公告)日：2021-04-01

申请号：US17119077

申请日：2020-12-11

Applicant: Japan Display Inc.

Inventor： Hiroshi KAWANAGO ,  Kazufumi WATABE

IPC: H01L27/12

Abstract: The purpose of the present invention is to prevent forming of soot like black substance on the back of the TFT substrate of resin during laser ablation to separate the glass substrate from the TFT substrate. The present invention takes the following structure to counter measure the above problem. A display device having pixels formed on a first surface of the resin substrate including: a first layer, formed from nitride, being formed on a second surface of the resin substrate, the second surface being an opposite surface to the first surface, in which a second layer, which is a separation layer, is formed on the first layer.

公开(公告)号：US20140353641A1

公开(公告)日：2014-12-04

申请号：US14291103

申请日：2014-05-30

Applicant: JAPAN DISPLAY INC.

Inventor： Kouhei TAKAHASHI ,  Toshihiro SATO ,  Naohisa ANDO ,  Hiroshi KAWANAGO

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

CPC classification number: H01L27/3276 ,  H01L2227/323 ,  H05K1/189 ,  H05K3/323 ,  H05K2201/10128

Abstract: A circuit unit is provided in which it is possible to connect circuit board to a terminal using a simple operation without removing a passivation film from above the terminal. A metal electrode which conducts with a circuit element is formed above a substrate. Multiple column shaped insulation films are each formed at a uniform pitch in two intersecting directions above the surface of the metal electrode. A metal electrode is formed above the metal electrode including the insulation film. A passivation film is formed on a surface of the metal electrode. Conductive beads are stuck between pairs of projection structured bodies formed on a surface of the passivation film, the passivation film on a side surface of the projection structure is scraped whereby the conductive beads conduct simultaneously with the metal electrode and an electrode formed on the circuit board.

Abstract translation: 提供一种电路单元，其中可以使用简单的操作将电路板连接到端子，而不从端子上方移除钝化膜。 与电路元件导通的金属电极形成在基板的上方。 多个柱状绝缘膜各自以均匀的间距在金属电极表面上的两个相交方向上形成。 在包括绝缘膜的金属电极上形成金属电极。 在金属电极的表面上形成钝化膜。 导电珠被粘附在形成在钝化膜的表面上的一对突出结构体之间，抛光突起结构的侧表面上的钝化膜被刮去，导电珠与金属电极和形成在电路板上的电极同时导电 。

公开(公告)号：US20200343274A1

公开(公告)日：2020-10-29

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.

公开(公告)号：US20170077401A1

公开(公告)日：2017-03-16

申请号：US15246707

申请日：2016-08-25

Applicant: Japan Display Inc.

Inventor： Hiroshi KAWANAGO ,  Kazufumi WATABE

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

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.

Abstract translation: 一种制造显示装置的方法，包括：层叠步骤，在玻璃基板上堆叠牺牲树脂层，金属层，透明金属氧化物层，基材树脂层和包含至少一个的功能层 依次驱动多个像素的像素电路构成层和滤色器层; 辐射步骤，通过玻璃基板和牺牲树脂层将氙闪光灯的脉冲光辐射到金属层; 以及在辐射步骤中辐射的脉冲光减少牺牲树脂层和金属层之间的粘合力的分离步骤，以及从金属层分离牺牲树脂层。

公开(公告)号：US20210083187A1

公开(公告)日：2021-03-18

申请号：US17106818

申请日：2020-11-30

Applicant: Japan Display Inc.

Inventor： Hiroshi KAWANAGO ,  Kazufumi WATABE

IPC: H01L51/00 ,  H01L27/32 ,  H05B33/10 ,  H05B33/12 ,  H05B45/00

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：US20170179386A1

公开(公告)日：2017-06-22

申请号：US15377128

申请日：2016-12-13

Applicant: Japan Display Inc.

Inventor： Kazufumi WATABE ,  Hiroshi KAWANAGO

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

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.

公开(公告)号：US20170040569A1

公开(公告)日：2017-02-09

申请号：US15229629

申请日：2016-08-05

Applicant: Japan Display Inc.

Inventor： Kazufumi WATABE ,  Hiroshi KAWANAGO ,  Manabu YAMASHITA ,  Hideaki ISHIGE

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

CPC classification number: H01L51/5253 ,  H01L27/3244 ,  H01L51/003 ,  H01L51/5203 ,  H01L51/56 ,  H01L2227/323 ,  H01L2227/326 ,  H01L2251/566

Abstract: First rib layers made of an inorganic material are formed in first frame regions of a first glass substrate. First resin layers are formed in first product regions after the first rib layers are formed. First functional layers which include light emitting element layers as a result of luminance of each of unit pixels forming an image being controlled and sealing layers covering the light emitting element layers are formed on the first rib layers and the first resin layers. The first rib layers and the first functional layers are cut along lines passing through the first frame regions while avoiding the first product regions in order to separate the first product regions from each other. In the step of cutting the first rib layers and the first functional layers, the first rib layers and the sealing layers are cut.

Abstract translation: 在第一玻璃基板的第一框架区域中形成由无机材料制成的第一肋层。 在形成第一肋层之后，在第一产品区域中形成第一树脂层。 作为形成被控制的图像的单位像素的亮度和覆盖发光元件层的密封层的发光元件层的第一功能层形成在第一肋层和第一树脂层上。 沿着穿过第一框架区域的线切割第一肋层和第一功能层，同时避免第一产品区域以将第一产品区域彼此分离。 在切割第一肋层和第一功能层的步骤中，切割第一肋层和密封层。