Flexible display apparatus

Patent metadata

Field	Value
Publication number	US-9563320-B2
Application number	US-201514706450-A
Country	US
Kind code	B2
Filing date	May 7, 2015
Priority date	Aug 28, 2014
Publication date	Feb 7, 2017
Grant date	Feb 7, 2017

Abstract

Provided is a flexible display apparatus. A shape deformation sensor is formed in at least one of a first plurality of connection lines of a flexible display panel and a second plurality of connection lines of a touch screen panel. The shape deformation sensor is configured to sense a shape deformation of the flexible display panel.

First claim

What is claimed is:

1. A flexible display apparatus comprising:
a flexible display panel which includes a display area in which a plurality of pixels are disposed, and a non-display area formed outside of the display area and in which a first plurality of connection lines connected to the pixels are disposed, wherein at least a portion of the flexible display panel is capable of being bent; and
a touch screen panel which includes an active area in which sensing electrodes are disposed, and a non-active area formed outside of the active area and in which a second plurality of connection lines connected to the sensing electrodes are disposed,
wherein a shape deformation sensor is formed in at least one from among the first plurality of connection lines of the non-display area and the second plurality of connection lines of the non-active area, wherein the shape deformation sensor is configured to sense a shape deformation of the flexible display panel.

2. The flexible display apparatus of claim 1 , wherein the shape deformation sensor includes a strain gauge of which an electrical resistance varies based on a sensed amount of the shape deformation.

3. The flexible display apparatus of claim 2 , wherein the shape deformation sensor includes a same material as the at least one of the first plurality of connection lines of the flexible display panel and the second plurality of connection lines of the touch screen panel in which the shape deformation sensor is formed.

4. The flexible display apparatus of claim 2 , wherein the shape deformation sensor extends from the at least one of the first plurality of connection lines of the flexible display panel and the second plurality of connection lines of the touch screen panel in which the shape deformation sensor is formed.

5. The flexible display apparatus of claim 2 , wherein the sensing electrodes of the touch screen panel comprise first sensing electrodes formed in a first direction and second sensing electrodes formed in a second direction that intersects the first direction, and
the second plurality of connection lines of the touch screen panel comprises first connection lines connected to both end portions of the first sensing electrodes and second connection lines connected to both end portions of the second sensing electrodes.

6. The flexible display apparatus of claim 5 , wherein at least two sections of the first connection lines extend in the second direction, and
a respective sensor component of the shape deformation sensor is formed in each of the at least two sections of the first connection lines that extend in the second direction.

7. The flexible display apparatus of claim 6 , wherein the respective components of the shape deformation sensor formed in the first connection lines are disposed apart from one another in the second direction.

8. The flexible display apparatus of claim 5 , wherein at least two sections of the second connection lines extend in the first direction, and
a respective component of the shape deformation sensor is formed in each of the sections of the at least two second connection lines that extend in the first direction.

9. The flexible display apparatus of claim 8 , wherein the respective components of the shape deformation sensor formed in the second connection lines are disposed apart from one another in the first direction.

10. A method for sensing a deformation in a flexible display apparatus, the flexible display apparatus comprising:
a flexible display panel which includes a display area in which a plurality of pixels are disposed, and a non-display area formed outside of the display area and in which a first plurality of connection lines connected to the pixels are disposed, wherein at least a portion of the flexible display panel is capable of being bent; and
a touch screen panel which includes an active area in which sensing electrodes are disposed, and a non-active area formed outside of the active area and in which a second plurality of connection lines connected to the sensing electrodes are disposed,
and the method comprising:
arranging a shape deformation sensor in at least one from among the first plurality of connection lines of the non-display area and the second plurality of connection lines of the non-active area; and

sensing, by the shape deformation sensor, a shape deformation of the flexible display panel.

11. The method of claim 10 , wherein the sensing comprises sensing an amount of shape deformation and determining a type of shape deformation, wherein the type of shape deformation includes at least one from among a folding deformation and a bending deformation.

12. The method of claim 11 , wherein when the type of shape deformation is determined as a folding deformation, the sensing further comprises determining a folding direction with respect to the flexible display apparatus.

13. The method of claim 11 , wherein when the type of shape deformation is determined as a bending deformation, the sensing further comprises determining a bending direction which includes at least one from among a concave direction and a convex direction with respect to a display surface of the flexible display apparatus.

14. The method of claim 10 , wherein the arranging includes providing a strain gauge in the shape deformation sensor, and wherein the sensing includes measuring, by the strain gauge, an electrical resistance.

15. The method of claim 10 , wherein the arranging includes providing a respective component of the shape deformation sensor in each of the first plurality of connection lines of the flexible display panel and in each of the second plurality of connection lines of the touch screen panel.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Lee Ga-Eun
• Lim Yong-Jun
• Park Kyung-Wan
• Cho Shi-Yun

Classifications

• G01N3/20

  by applying steady bending forces (G01N3/26, G01N3/28 take precedence) · CPC title

• G06F3/0412

  Digitisers structurally integrated in a display · CPC title

• G06F1/16

  Constructional details or arrangements · 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

• G06F3/044 Primary

  by capacitive means · CPC title