US 10,374,023 B2Granted

Flexible display device

AssigneeJapan Display Inc.

InventorsYasukazu Kimura, Takuma Nishinohara, Toshihiko Itoga, Hajime Akimoto

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Abstract

A display device includes: a flexible substrate; a pixel over the flexible substrate, the pixel including a transistor and a display element; a first wiring for transmitting a signal to the pixel, the first wiring extending in a first direction; a second wiring extending in a second direction intersecting the first direction; an inorganic insulating layer on a higher level than the first wiring or the second wiring; and an organic insulating layer on a higher level than the inorganic insulating layer, wherein the inorganic insulating layer has an opening exposing a part of the upper surface of the first wiring or the second wiring is exposed, and the organic insulating layer is provided in such a way as to fill the opening.

Claims18

Dependent claims

A flexible display device comprising:

a first flexible substrate;
and
a plurality of pixels above the first flexible substrate, each of the plurality of pixels includes:
a first inorganic material layer over the first flexible substrate;
a first inorganic insulation layer over the first inorganic material layer;
a first organic insulation layer over the first inorganic insulation layer;
and
an organic light emitting element over the first organic insulation layer,
wherein
the plurality of pixels are arranged in a matrix over the first flexile substrate,
the first inorganic insulation layer has a first opening exposing a part of a top surface of the first inorganic material layer in each of the plurality of pixels,
a first part of the first organic insulation layer is buried in the first opening in each of the pixels, and
the first part of the first organic insulation layer is in contact with the part of the top surface of the first inorganic material layer in the first opening.

10 more elements

A flexible display device comprising:

a first flexible substrate;
and
a plurality of pixels above the first flexible substrate, each of the plurality of pixels includes:
a first semiconductor layer over the first flexible substrate;
a first inorganic insulation layer over the first semiconductor;
a first metal layer over the first inorganic insulation layer;
a first organic insulation layer over the first inorganic insulation layer and the first metal layer;
and
an organic light emitting element over the first organic insulation layer,
wherein
the plurality of pixels are arranged in a matrix over the first flexile substrate,
the first inorganic insulation layer has a first opening exposing a part of a top surface of the first semiconductor in each of the plurality of pixels,
a part of the first metal layer is buried in the first opening,
a whole top surface of the first metal layer is in contact with the first organic insulation layer, and
the first metal layer is not in contact with any conductive material layer except for the first semiconductor layer.

12 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/798,896Filed 31 Oct 2017 · continuation
Priority: JP 2015-24868721 Dec 2015
Published: US 2018/0069066 A18 Mar 2018
Granted: 6 Aug 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification15 codes

H10K 59/1216
Characterised by the geometry or disposition of pixel elements: the pixel elements being capacitors
H10K 59/1213
Characterised by the geometry or disposition of pixel elements: the pixel elements being TFTs
H10K 59/123
Active-matrix OLED [AMOLED] displays: connection of the pixel electrodes to the thin film transistors [TFT]
H10K 59/124
Active-matrix OLED [AMOLED] displays: insulating layers formed between TFT elements and OLED elements

Family

Application15/373,533Parent of this continuation · filed 9 Dec 2016
US 2018/0069066 A1Pre-grant publication · published 8 Mar 2018
US 9,837,475 B2Parent of this continuation
US 2017/0179210 A1Published application
US 10,374,023 B2This patent

From the US filing history. Foreign family members aren’t listed.

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