Display panel and display device

Patent metadata

Field	Value
Publication number	US-10714558-B2
Application number	US-201615299639-A
Country	US
Kind code	B2
Filing date	Oct 21, 2016
Priority date	Oct 21, 2015
Publication date	Jul 14, 2020
Grant date	Jul 14, 2020

Abstract

A display panel and a display device including the same are provided. A display device includes a display panel having a plurality of data lines and a plurality of gate lines thereon, the display panel including at least one first area and at least one second area having different light-emitting directions; a data driver circuit configured to drive the plurality of data lines; and a gate driver circuit configured to drive the plurality of gate lines.

First claim

What is claimed is:

1. A display device, comprising:
a display panel having a plurality of data lines and a plurality of gate lines thereon, the display panel including a contiguous first area having a plurality of subpixels and a contiguous second area separated from the first area having a plurality of subpixels such that the first and second areas have different light-emitting directions;
a data driver circuit configured to drive the plurality of data lines; and
a gate driver circuit configured to drive the plurality of gate lines,
wherein a resolution of one of the first area and the second area is lower than a resolution of the other of the first area and the second area, and
wherein the gate lines and the data lines are disposed such that density of the sub-pixels in the lower-resolution area is smaller than that of the sub-pixels in the higher-resolution area.

2. The display device according to claim 1 , wherein the display panel includes a substrate,
wherein each of the first area and the second area includes:
a first electrode on the substrate;
an organic layer on the first electrode; and
a second electrode on the organic layer,

wherein a bottom reflective layer is between the substrate and the first electrode in one of the first area and the second area, and
wherein a top reflective layer is on the second electrode in the other area of the first area and the second area.

3. The display device according to claim 2 , wherein the substrate includes one of a glass substrate and a flexible film substrate.

4. The display device according to claim 2 , wherein there is a bending area between the first area and the second area.

5. The display device according to claim 4 , wherein each of the first electrode, the organic layer and the second electrode has a step portion in the bending area.

6. The display device according to claim 1 , wherein a size of each of the second area is smaller than a size of the first area.

7. The display device according to claim 1 , wherein a size of the first area is substantially the same as a size of the second area.

8. The display device according to claim 1 , wherein one of the first area and the second area includes an image display area, and the other of the first area and the second area includes an additional information display area.

9. The display device according to claim 1 , wherein a boundary between the first area and the second area is oriented in a first direction, and a length of the second area in the first direction is less than a length of the first area in the first direction.

10. The display device according to claim 1 , wherein a boundary between the first area and the second area is oriented in a first direction, and the length of the second area in the first direction and the length of the first area in the first direction have the same size.

11. The display device according to claim 1 , wherein the display panel is foldable along a boundary between the first area and the second area or is foldable along points by which the first area or the second area is divided into at least two sub-areas.

12. The display device according to claim 11 , wherein, when the display panel is folded along the boundary between the first area and the second area, the second area covers all or a portion of the first area.

13. The display device according to claim 11 , wherein, when the display panel is folded along the points by which the first area is divided into at least two sub-areas, at least one sub-area of the at least two sub-areas covers the other sub-area of the at least two sub-areas.

14. The display device according to claim 11 , wherein, when the display panel is folded, one of the first area and the second area is a display-off area, and the other of the first area and the second area is a display-on area.

15. The display device according to claim 1 , wherein a boundary between the first area and the second area is parallel to the plurality of gate lines.

16. The display device according to claim 1 , wherein a boundary between the first area and the second area is parallel to the plurality of data lines.

17. The display device according to claim 1 , wherein the gate driver circuit includes:
a first gate driver configured to drive gate lines among the plurality of gate lines through which subpixels in the first area are caused to generate light; and
a second gate driver configured to drive gate lines among the plurality of gate lines through which subpixels in the second area are caused to generate light.

18. The display device according to claim 1 , wherein the data driver circuit includes:
a first data driver configured to drive data lines among the plurality of data lines through which subpixels in the first area are caused to generate light; and
a second data driver configured to drive data lines among the plurality of data lines through which subpixels disposed in the second area are caused to generate light.

19. A display panel, comprising:
a substrate;
a first electrode on the substrate;
an organic layer on the first electrode; and
a second electrode on the organic layer,
wherein the display panel includes a contiguous first area having a plurality of subpixels and a contiguous second area separated from the first area having a plurality of subpixels such that the first and second areas have different light-emitting directions, and
wherein the display panel further includes:
a bottom reflective layer between the substrate and the first electrode in the first area, and
a top reflective layer on the second electrode in the second area,

wherein a resolution of one of the first area and the second area is lower than a resolution of the other of the first area and the second area, and
wherein the display panel further includes a plurality of data lines and a plurality of gate lines, and the gate lines and data lines are disposed such that density of the sub-pixels in the lower-resolution area is smaller than that of the sub-pixels in the higher-resolution area.

20. The display panel according to claim 19 , wherein the bottom reflective layer is formed in an entirety of the first area, and the top reflective layer is formed in an entirety of the second area.

21. A display panel, comprising:
a substrate;
a plurality of top emission devices on the substrate in a contiguous first area having a plurality of subpixels; and
a plurality of bottom emission devices on the substrate in a contiguous second area having a plurality of subpixels that does not overlap the first area,
wherein a resolution of one of the first area and the second area is lower than a resolution of the other of the first area and the second area, and
wherein the display panel further includes a plurality of data lines and a plurality of gate lines, and the gate lines and data lines are disposed such that density of the sub-pixels in the lower-resolution area is smaller than that of the sub-pixels in the higher-resolution area.

Assignees

• Lg Display Co Ltd

Inventors

• Kwon Ohnam

Classifications

• H10K59/878

  comprising reflective means · CPC title

• H10K59/8052

  Cathodes · CPC title

• H10K59/8051

  Anodes · CPC title

• H10K59/128

  comprising two independent displays, e.g. for emitting information from two major sides of the display · CPC title

• G09G3/035 Primary

  for flexible display surfaces · CPC title