Curved display device with predietemined curvature along two directions

Patent metadata

Field	Value
Publication number	US-9933643-B2
Application number	US-201615230149-A
Country	US
Kind code	B2
Filing date	Aug 5, 2016
Priority date	Feb 5, 2016
Publication date	Apr 3, 2018
Grant date	Apr 3, 2018

Abstract

A curved display device comprising a display panel having a display surface on which a plurality of pixel units are disposed. The display surface includes a first bending line, which extends in a first direction, and a second bending line, which extends in a second direction that crosses the first direction at a right angle, and is bent along each of the first bending line and the second bending line.

First claim

What is claimed is:

1. A curved display device, comprising:
a display panel comprising a plurality of pixel units which is disposed on a display surface,
wherein
a first bending line, which extends in a first direction, and a second bending line, which extends in a second direction crossing the first direction at a right angle, are defined on the display surface, and
the display surface is bent along the first bending line and the second bending line,
wherein the display surface comprises a central area and a peripheral area disposed outside the central area,
wherein the pixel units are a first column pixel unit which is disposed in the central area and a second column pixel unit which is disposed in the peripheral area, and
wherein a size of the first column pixel units is smaller than a size of the second column pixel unit.

2. The curved display device of claim 1 , wherein four sides of the display surface are bent along each of the first and second bending lines.

3. The curved display device of claim 1 , wherein the display surface comprises:
a first outer side;
a second outer side, which is symmetrical with the first outer side with respect to the first bending line;
a third outer side, which is connected to a first end of the first outer side and a first side of the second outer side; and
a fourth outer side, which is symmetrical with the third outer side with respect to the second bending line and is connected to a second end of the first outer side and a second end of the second outer side.

4. The curved display device of claim 3 , wherein at least one of the first through fourth outer sides is parabolic in a plan view.

5. The curved display device of claim 3 , wherein the pixel units have different sizes corresponding to a curvature of the first outer side.

6. The curved display device of claim 5 , wherein a number of the pixel units included in a first column is the same as a number of the pixel units included in a second column, which is different from the first column.

7. The curved display device of claim 5 , wherein
the display surface further comprises:
a central area, in which an intersection between the first and second bending lines disposed; and
a peripheral area, which is disposed outside the central area, and
the pixel units in the central area have a smaller size than the pixel units in the peripheral area.

8. The curved display device of claim 3 , wherein the pixel units have different horizontal lengths corresponding to a curvature of one of the third and fourth outer sides.

9. The curved display device of claim 3 , wherein a number of the pixel units included in a first column is different from a number of the pixel units included in a second column, which is different from the first column.

10. The curved display device of claim 9 , wherein
the display surface further comprises:
a central area; and
a peripheral area, which is disposed outside the central area, and
a number of the pixel units in a column in the central area is smaller than a number of the pixel units in the column in the peripheral area.

11. The curved display device of claim 10 , further comprising:
data lines which provides data signals to the display panel; and
gate lines which provides gate signals to the display panel,
wherein at least two adjacent pixel units in the peripheral area are connected to a same data line of the data lines or a same gate line of the gate lines.

12. The curved display device of claim 9 , wherein the pixel units have a same size as each other.

13. A curved display device, comprising:
a display panel comprising a plurality of pixels, wherein a display surface, which includes a central area and a peripheral area disposed outside the central area, is defined on the display panel;
a plurality of gate lines disposed on the display surface to extend in a first direction; and
a plurality of data lines disposed on the display surface to extend in a second direction, which crosses the first direction at a right angle,
wherein
the pixel units are connected to the gate lines and the data lines, and
a first bending line, which extends in the first direction, and a second bending line, which extends in the second direction, are defined on the display surface, and
the display surface is bent along each of the first and second bending lines.

14. The curved display device of claim 13 , wherein
the pixel units include a plurality of pixel electrodes,
the size of the pixel electrodes gradually increases from the central area to the peripheral area.

15. The curved display device of claim 14 , wherein
the pixel units comprises first pixel units, which are disposed in a first column, and second pixel units, which are disposed in a second column, and
a number of the first pixel units is the same as a number of the second pixel units.

16. The curved display device of claim 14 , wherein
the display surface comprises:
a first outer side;
a second outer side, which is symmetrical with the first outer side with respect to the first bending line;
a third outer side, which is connected to a first end of the first outer side and a first side of the second outer side; and
a fourth outer side, which is symmetrical with the third outer side with respect to the second bending line and is connected to a second end of the first outer side and a second end of the second outer side, and
at least one of the first through fourth outer sides is parabolic in a plan view.

17. The curved display device of claim 16 , wherein the pixel units have different sizes corresponding to a curvature of the first outer side.

18. The curved display device of claim 13 , wherein
the pixel units comprises first pixel units, which are disposed in a first column in the central area, and second pixel units, which are disposed in a second column in the peripheral area, and
a number of the first pixel units is smaller than a number of the second pixel units.

19. The curved display device of claim 18 , wherein pixel electrodes included in the first pixel units have a same size as pixel electrodes included in the second pixel units.

20. The curved display device of claim 18 , wherein at least two adjacent second pixel units are connected to a same data line of the data lines or a same gate line of the gate lines.

Assignees

• Samsung Display Co Ltd
• Samsung Display Co Ltd

Inventors

• Chong Jong Ho
• Kim Su Young
• Lee Eun Jung

Classifications

• H01L27/124

  Electricity · mapped topic

• G02F2201/121

  common or background · CPC title

• G02F2201/123

  pixel · CPC title

• G02F1/136286

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

• G02F1/1368

  in which the switching element is a three-electrode device {(G02F1/136277 takes precedence)} · CPC title