IP Library Granted Patent US 10,355,249
Granted Patent B2
US 10,355,249 · App. 15/943,905 · Granted Jul 16, 2019

Organic electro-luminescence display device and manufacturing method of an organic electro-luminescence display device

Inventors: Hiroki Nakaie (Minato-ku, JP); Toshihiko Itoga (Minato-ku, JP)
Assignee: Japan Display Inc.
H01L51/56H01L51/0002H01L51/003H01L51/0024H01L51/0097H01L51/5253H01L2251/5338
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Quick Facts
Patent No.
US 10,355,249
App. No.
15/943,905
Granted
Jul 16, 2019
Kind
B2
Abstract

A manufacturing method of an organic EL display device according to an embodiment of the present invention includes: disposing a first organic substrate having flexibility on a glass substrate; disposing a barrier layer on the first organic substrate; disposing a second organic substrate having flexibility on the barrier layer such that a thickness of a terminal section area is thinner than a thickness of a pixel section area, or at least a part of the terminal section area is not covered; disposing a pixel control section on the terminal section area of the second organic substrate and a pixel generating section on the pixel section area, respectively; disposing a circuit section at least on the terminal section area, the circuit section having a thin film transistor, wherein the circuit section is formed directly on the second organic substrate.

Claims (25)

1. A manufacturing method of an organic EL display device comprising:

disposing a first organic substrate having flexibility on a glass substrate;

disposing a barrier layer on the first organic substrate;

disposing a second organic substrate having flexibility on the barrier layer such that a thickness of a terminal section area is thinner than a thickness of a pixel section area, or at least a part of the terminal section area is not covered;

disposing a pixel control section on the terminal section area of the second organic substrate and a pixel generating section on the pixel section area, respectively;

disposing a circuit section at least on the terminal section area, the circuit section having a thin film transistor, wherein

the circuit section is formed directly on the second organic substrate.

2. The manufacturing method of the organic EL display device according to claim 1 , wherein

a thickness of the second organic substrate is equal to or less than a thickness of the first organic substrate.

3. The manufacturing method of the organic EL display device according to claim 1 , wherein

the step of disposing the second organic substrate includes:

scrapping an organic substrate such that the thickness of the terminal section area is thinner than the thickness of the pixel section area or at least apart of the terminal section area is not covered, the organic substrate being formed to have an even thickness; and

cleaning the organic substrate.

4. The manufacturing method of the organic EL display device according to claim 1 , wherein

the step of disposing the second organic substrate includes changing a discharge amount or a moving speed of a device that discharges a material of the second organic substrate such that the thickness of the terminal section area is thinner than the thickness of the pixel section area, or at least a part of the terminal section area is not covered.

5. An organic EL display device comprising:

a first organic substrate having flexibility;

a barrier layer on the first organic substrate;

a second organic substrate having flexibility disposed on the barrier layer such that a thickness of a terminal section area is thinner than a thickness of a pixel section area, or at least a part of the terminal section area is not covered;

a pixel control section on the terminal section area of the second organic substrate;

a pixel generating section on the pixel section area of the second organic substrate;

a circuit section disposed at least on the terminal section area, the circuit section having a thin film transistor, wherein

the circuit section is formed directly on the second organic substrate.

6. The organic EL display device according to claim 5 , wherein

a thickness of the second organic substrate is equal to or less than a thickness of the first organic substrate.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 22, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 072130/0313 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 3, 2018
From: NAKAIE, HIROKI; ITOGA, TOSHIHIKO
To: JAPAN DISPLAY INC.
Reel/Frame 045821/0814 →
Priority Claims (1)
JP 2017-078371 · Apr 11, 2017 · national
Continuity (1)
Related Publication 20180294445A1 · Oct 11, 2018