Display device including a plurality of normal pixels and dummy pixels in the display area

Patent metadata

Field	Value
Publication number	US-10615229-B2
Application number	US-201715651680-A
Country	US
Kind code	B2
Filing date	Jul 17, 2017
Priority date	Jul 25, 2016
Publication date	Apr 7, 2020
Grant date	Apr 7, 2020

Abstract

A display device includes: a substrate including a display area for displaying an image and a peripheral area positioned adjacent to the display area; a plurality of normal pixels disposed within the display area on the substrate, where each normal pixel includes a first transmissive area and a pixel area disposed adjacent the first transmissive area; and a dummy pixel disposed within the display area on the substrate, adjacent to a curved section of the peripheral area, and disposed between the peripheral area and the plurality of pixels. The dummy pixel includes: a second transmissive area; and a wire area disposed adjacent the second transmissive area.

First claim

What is claimed is:

1. A display device, comprising:
a substrate including a display area for displaying an image and a peripheral area positioned adjacent the display area;
a plurality of normal pixels disposed within the display area on the substrate, where each of the normal pixels comprises a first transmissive area and a pixel area disposed adjacent the first transmissive area; and
a dummy pixel disposed within the display area on the substrate, adjacent to a curved section of the peripheral area, and disposed between the peripheral area and the plurality of normal pixels,
wherein the dummy pixel comprises:
a second transmissive area; and
a wire area disposed adjacent the second transmissive area.

2. The display device of claim 1 , wherein the wire area includes a wire.

3. The display device of claim 2 , wherein the wire comprises a plurality of parallel wire segments.

4. The display device of claim 3 , wherein the plurality of wire segments are electrically connected to one another.

5. The display device of claim 1 , wherein the pixel area comprises:
a first electrode positioned on the substrate; a second electrode positioned on the first electrode; and
an organic emission layer positioned between the first electrode and the second electrode.

6. The display device of claim 5 , wherein the second transmissive area comprises:
a buffer layer disposed on the substrate, and a transparent metal layer disposed on the buffer layer.

7. The display device of claim 6 , wherein the transparent metal layer is positioned on the same layer as that of the second electrode.

8. The display device of claim 1 , wherein the second transmissive area has a quadrangular plane shape.

9. The display device of claim 8 , wherein the second transmissive area has a rectangular plane shape.

10. The display device of claim 2 , wherein the second transmissive area extends in a first direction, and the wire extends in the first direction.

11. The display device of claim 2 , wherein the wire is connected to at least one of a plurality of signal lines and a plurality of power lines positioned in the peripheral area.

12. The display device of claim 11 , wherein the plurality of power lines comprises a driving power line and a common power line.

13. The display device of claim 2 , wherein the pixel area includes a thin film transistor including a plurality of electrode members positioned on different layers on the substrate.

14. The display device of claim 13 , wherein the wire is positioned on the same layer as that of any one of the plurality of electrode members.

15. The display device of claim 13 , wherein the plurality of electrode members includes a light blocking film positioned on the substrate, a source electrode and a drain electrode, and a gate electrode overlapping the light blocking film and disposed between the source electrode and the drain electrode.

16. The display device of claim 2 , wherein the wire has a shape bent two or more times.

17. The display device of claim 2 , wherein the second transmissive area extends in a first direction, and the wire extends in a second direction crossing the first direction.

18. The display device of claim 2 , wherein the second transmissive area extends in a first direction, and the wire is inclined at an angle with respect to the first direction.

19. The display device of claim 1 , wherein at least some of the plurality of normal pixels are adjacent to the curved section of the peripheral area and disposed in a step shape.

20. The display device of claim 1 , wherein each of the normal pixels includes a plurality of sub-pixels for emitting light of different colors.

21. A display device, comprising:
a plurality of normal pixels disposed in a display area of the display device, where a subset of the pixels are arranged in a step shape that is adjacent a curved section of peripheral area of the display device; and
a plurality of dummy pixels arranged on top of the subset of pixels inside the display area, wherein each of the normal pixels and the dummy pixels includes a first area adjacent a second area, where the first area includes a transmissive area, the second area of the normal pixels includes an organic light emitting diode (OLED), and the second area of the dummy pixels includes only a wire without an OLEO.

22. The display device of claim 21 , where the wire is bent several times to fill the second area of the dummy pixels.

23. The display device of claim 21 , further comprising a power line providing a constant voltage to the wire.

24. The display device of claim 21 , where each of the normal pixels further comprises:
a light blocking layer;
a source electrode;
a drain electrode; and
a gate electrode overlapping the light blocking layer and disposed between the source electrode and the drain electrode.

Assignees

• Samsung Display Co Ltd
• Samsung Display Co Inc

Inventors

• Lee Won Se
• Kim Dong Wook
• Shin Ae
• Kim Su Kyoung

Classifications

• H01L2251/5338

  Electricity · mapped topic

• H01L27/3272

  Electricity · mapped topic

• B60K2370/331

  Operations & Transport · mapped topic

• H01L27/3211

  Electricity · mapped topic

• B60K35/00

  Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles · CPC title