FLAT PANEL DISPLAY DEVICE

• US 20140362304A1
• Filed: 09/13/2013
• Published: 12/11/2014
• Est. Priority Date: 06/10/2013
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: WANG, Seong-Min, KIM, Mu-Gyeom
• Granted Patent: US 9,195,333 B2
• Time in Patent Office: Days
• US Class Current: 349/12
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/04144 using an array of force sensing means position sensing using the local deformation of sensor cells G06F3/0447

Abstract

A flat panel display device includes a plurality of scan lines elongated in a direction, a plurality of data lines elongated to intersect the scan lines, a plurality of pixel devices respectively coupled to the plurality of scan lines and the plurality of data lines, a plurality of first sensing lines elongated parallel to the scan lines, a plurality of second sensing lines elongated parallel to the data lines, and a plurality of sensing devices respectively coupled to the plurality of first sensing lines and the plurality of second sensing lines.

Claims

1. A flat panel display device, comprising:

a plurality of scan lines elongated in a direction;

a plurality of data lines elongated to intersect the plurality of scan lines;

a plurality of pixel devices respectively coupled to the plurality of scan lines and the plurality of data lines;

a plurality of first sensing lines elongated parallel to the scan lines;

a plurality of second sensing lines elongated parallel to the data lines; and

a plurality of sensing devices respectively coupled to the plurality of first sensing lines and the plurality of second sensing lines.

2. The flat panel display device of claim 1, wherein each pixel device comprises:

a first electrode;

an organic light emitting layer on the first electrode; and

a second electrode on the organic light emitting layer.

3. The flat panel display device of claim 1, wherein each pixel device comprises:

a first electrode;

a liquid crystal layer on the first electrode; and

a second electrode on the liquid crystal layer.

4. The flat panel display device of claim 1, wherein each sensing device comprises:

a first electrode coupled to a first sensing line among the plurality of first sensing lines;

a piezoelectric layer on the first electrode; and

a second electrode on the piezoelectric layer and coupled to a second sensing line among the plurality of second sensing lines.

5. The flat panel display device of claim 4, wherein the piezoelectric layer comprises at least one material selected from poly vinylidene fluoride (PVDF), PVDF-co-trifluoroethylene (TrFE), TrFE, polyurea, polyimide and nylon.

6. The flat panel display device of claim 4, wherein the piezoelectric layer comprises at least one material selected from BaTiO₃ and lead zirconate titanate (PZT).

7. The flat panel display device of claim 4, wherein a thickness of the piezoelectric layer is in a range from about 0.1 micrometer to about 3.0 micrometers.

8. The flat panel display device of claim 4, wherein the first or second electrode of the sensing device is in a same plane as the first electrode of the pixel device.

9. The flat panel display device of claim 4, wherein the first and second electrodes of the sensing device are overlapped with the second electrode of the pixel device.

10. The flat panel display device of claim 1, further comprising a sensing unit coupled to the plurality of first sensing lines and the plurality of second sensing lines.

11. The flat panel display device of claim 10, further comprising:

a scan driver coupled to the plurality of scan lines; and

a data driver coupled to the plurality of data lines,

wherein the scan driver or the data driver comprises a portion of the sensing unit.

12. The flat panel display device of claim 1, wherein the plurality of first sensing lines and the plurality of second sensing lines comprise a transparent conductive material.

13. The flat panel display device of claim 12, wherein the transparent conductive material comprises at least one material selected from silver (Ag) nano tube, Ag nano wire, carbon nano tube, grapheme, indium tin oxide, indium zinc oxide, gallium indium zinc oxide, indium tin zinc oxide, hafnium indium zinc oxide, Ag, MgAg and YbAg.

14. The flat panel display device of claim 1, wherein the flat panel display device is a flexible flat panel display device.

15. The flat panel display device of claim 1, further comprising a plurality of pixel regions in which an image is displayed,

wherein a sensing device among the plurality of sensing devices is in each pixel region among the plurality of pixel regions, in which a pixel device among the plurality of pixel devices is disposed.