Flexible display device including a flexible substrate having a bending part and a conductive pattern at least partially disposed on the bending part

Patent metadata

Field	Value
Publication number	US-11009729-B2
Application number	US-201816157014-A
Country	US
Kind code	B2
Filing date	Oct 10, 2018
Priority date	May 29, 2015
Publication date	May 18, 2021
Grant date	May 18, 2021

Abstract

A flexible display device including a flexible substrate and a conductive pattern. The flexible substrate includes a bending part in which a bending occurs. At least a portion of the conductive pattern is disposed on the bending part and the conductive pattern includes grains. Each grain has a grain size of about 10 nm to about 100 nm.

First claim

What is claimed is:

1. A flexible display device comprising:
a flexible display panel comprising a panel bending part; and
a touch screen panel comprising a touch bending part and disposed on the flexible display panel,
wherein:
the flexible display panel comprises:
a flexible substrate comprising a bending part;
a thin film transistor comprising a source part, a drain part, and a channel part; and
an organic light emitting element electrically connected to the thin film transistor;

the touch screen panel comprises a sensing electrode including a plurality of grains consisting of aluminum or aluminum oxide; and
the plurality of grains are stacked in a thickness direction forming a multilayer in one layer of the sensing electrode.

2. The flexible display device of claim 1 , wherein the sensing electrode has a thickness of about 10 nm to about 150 nm.

3. The flexible display device of claim 1 , wherein the sensing electrode comprises a mesh structure.

4. A flexible display device comprising:
a flexible display panel; and
a touch screen panel comprising a touch bending part,
wherein:
the flexible display panel comprises:
a flexible substrate comprising a bending part;
a thin film transistor comprising a source part, a drain part, and a channel part; and
an organic light emitting element electrically connected to the thin film transistor;

the touch bending part comprises a sensing electrode having a mesh structure; the sensing electrode at the touch bending part includes a plurality of grains consisting of aluminum or aluminum oxide; and
the plurality of grains are stacked in a thickness direction forming a multilayer in one layer of the sensing electrode.

5. The flexible display device of claim 1 , wherein each of the grains has an average size of about 10 nm to about 100 nm.

6. The flexible display device of claim 4 , wherein each of the grains has an average size of about 10 nm to about 100 nm.

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Kyungseop
• Han Sangyoun
• Choi Sangkyu
• Kang Jae-Wook
• Park Sungkyun
• Park Yongwoo
• Son Jungha

Classifications

• G06F3/0412

  Digitisers structurally integrated in a display · CPC title

• G02F1/13629

  Multilayer wirings · CPC title

• H05K1/09

  Use of materials for the {conductive, e.g. } metallic pattern · CPC title

• G06F2203/04102

  Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper · CPC title

• G02F1/136286

  Wiring, e.g. gate line, drain line · CPC title