Organic light-emitting display apparatus

Patent metadata

Field	Value
Publication number	US-9966558-B2
Application number	US-201715628557-A
Country	US
Kind code	B2
Filing date	Jun 20, 2017
Priority date	Mar 27, 2015
Publication date	May 8, 2018
Grant date	May 8, 2018

Abstract

An organic light-emitting display apparatus includes: a substrate; a display unit on the substrate and including a display area and a non-display area outside of the display area; and a thin-film encapsulation layer that seals the display unit, wherein the non-display area includes a dam region located outside of the display area and a plurality of protrusions on at least a part of the display unit outside of the dam region.

First claim

What is claimed is:

1. An organic light-emitting display apparatus comprising:
a substrate;
a display unit on the substrate and comprising a display area and a non-display area outside of the display area; and
a thin-film encapsulation layer that seals the display unit,
wherein the non-display area comprises a first protrusion located outside of the display area and a plurality of second protrusions outside of the first protrusion,
wherein the plurality of second protrusions are spaced apart from each other at regular intervals, and
wherein a power supply wire is located in the non-display area, and the first protrusion overlaps and contacts at least an outer edge of the power supply wire.

2. The organic light-emitting display apparatus of claim 1 , wherein the plurality of second protrusions form a uniform pattern.

3. The organic light-emitting display apparatus of claim 1 , wherein the plurality of second protrusions are arranged in a plurality of rows and a plurality of columns.

4. The organic light-emitting display apparatus of claim 1 , wherein the plurality of second protrusions surround the first protrusion.

5. The organic light-emitting display apparatus of claim 1 , wherein the display unit comprises a thin-film transistor and an organic light-emitting device electrically connected to the thin-film transistor; and
wherein the power supply wire and the organic light-emitting device are electrically connected to each other through a wire.

6. The organic light-emitting display apparatus of claim 5 , wherein the thin-film encapsulation layer comprises a first inorganic film, a first organic film on the first inorganic film, and a second inorganic film on the first organic film, and
wherein a portion of the wire directly contacts the first inorganic film.

7. The organic light-emitting display apparatus of claim 1 , wherein the thin-film encapsulation layer comprises a plurality of inorganic films and a plurality of organic films respectively located between the plurality of inorganic films,
wherein the plurality of inorganic films cover the plurality of second protrusions.

8. The organic light-emitting display apparatus of claim 7 , wherein the plurality of inorganic films contact each other outside of the plurality of second protrusions.

9. An organic light-emitting display apparatus comprising:
a substrate;
a display unit on the substrate and comprising a display area and a non-display area outside of the display area; and
a thin-film encapsulation layer that seals the display unit,
wherein the non-display area comprises a first protrusion located outside of the display area and a plurality of second protrusions outside of the first protrusion,
wherein the plurality of second protrusions are spaced apart from each other at regular intervals,
wherein the display unit comprises: a thin-film transistor; an organic light-emitting device electrically coupled to the thin-film transistor; a passivation film between the thin-film transistor and the organic light-emitting device; and a pixel-defining film defining a pixel region of the organic light-emitting device, and
wherein the first protrusion is formed of a same material as at least one selected from the passivation film and the pixel-defining film.

10. The organic light-emitting display apparatus of claim 9 , wherein the first protrusion comprises: a first layer formed of a same material as the passivation film; and a second layer on the first layer and formed of a same material as the pixel-defining film.

11. The organic light-emitting display apparatus of claim 9 , wherein the thin-film transistor comprises: an active layer; a gate electrode; a source electrode; and a drain electrode,
wherein a gate insulating layer is located between the active layer and the gate electrode, and an interlayer insulating film is located between the gate electrode and the source and drain electrodes, and
the gate insulating layer and the interlayer insulating film extend to the non-display area.

12. The organic light-emitting display apparatus of claim 11 , wherein the plurality of second protrusions are located on the interlayer insulating film.

13. The organic light-emitting display apparatus of claim 11 , wherein the thin-film encapsulation layer comprises at least one inorganic film, wherein the at least one inorganic film contacts the interlayer insulating film outside of the plurality of second protrusions.

14. The organic light-emitting display apparatus of claim 13 , wherein the at least one inorganic film contacts a top surface of the substrate through an edge portion of the interlayer insulating film.

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Moongon

Classifications

• H10K59/8731 Primary

  multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers · CPC title

• H10K50/8445

  multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers · CPC title

• H10K50/84

  Passivation; Containers; Encapsulations · CPC title

• H01L51/5237 Primary

  Electricity · mapped topic

• H10K59/124

  Insulating layers formed between TFT elements and OLED elements · CPC title