Display apparatus with bent area including spaced patterns

Patent metadata

Field	Value
Publication number	US-10608202-B2
Application number	US-201715591563-A
Country	US
Kind code	B2
Filing date	May 10, 2017
Priority date	May 11, 2016
Publication date	Mar 31, 2020
Grant date	Mar 31, 2020

Abstract

A display apparatus includes a substrate having a first area, a second area, and a third area, the second area being between the first and third areas, a display unit on the substrate in the first area, and an encapsulation layer covering the display unit in the first area and extending into the second area, the encapsulation layer including a first inorganic layer, a second inorganic layer, an organic layer between the first and second inorganic layers in the first area, and a plurality of organic patterns spaced apart from each other at certain intervals in the second area. The first and third areas of the substrate are bent with respect to each other at a predetermined angle, other than a straight angle, with the second area bent therebetween, and the plurality of organic patterns are in the second area that is bent toward the bottom of the substrate.

First claim

What is claimed is:

1. A display apparatus, comprising:
a substrate including a first area, a second area, and a third area, the first and third areas being bent with respect to each other at a predetermined angle, other than a straight angle, the second area being between the first and third areas, and the second area being bent toward a bottom of the substrate;
a display unit on a top of the substrate, the display unit being in the first area and including:
a thin film transistor (TFT),
an insulating layer covering the TFT and extending from the first area to the second area,
a pixel defining layer above the TFT, and
an organic light-emitting diode (OLED) on the insulating layer; and

an encapsulation layer covering the display unit in the first area and extending into the second area, the encapsulation layer including:
a first inorganic layer on topmost surfaces of the OLED and the pixel defining layer, the first inorganic layer extending from the first area into the second and third areas,
a second inorganic layer over the first inorganic layer in the first, second, and third areas,
an organic layer between the first inorganic layer and the second inorganic layer in the first area and the second area, and
a plurality of organic patterns included in the organic layer and spaced apart from each other at certain intervals in the second area, the intervals being first spaced regions between the organic patterns in the second area.

2. The display apparatus as claimed in claim 1 , wherein the first inorganic layer and the second inorganic layer directly contact each other in the first spaced regions, an entirety of the organic layer being directly between and completely enclosed by the first and second inorganic layers.

3. The display apparatus as claimed in claim 1 , wherein the first inorganic layer and the second inorganic layer comprise a plurality of first trenches in the first spaced regions.

4. The display apparatus as claimed in claim 3 , wherein the plurality of first trenches penetrate the second inorganic layer.

5. The display apparatus as claimed in claim 4 , wherein the plurality of first trenches do not completely penetrate the first inorganic layer.

6. The display apparatus as claimed in claim 3 , wherein the plurality of first trenches extend along the bending axis.

7. The display apparatus as claimed in claim 1 , wherein the display unit includes:
a buffer layer between the substrate and the insulating layer;
a first inorganic insulating layer; and
a second inorganic insulating layer between the first inorganic insulating layer and the insulating layer,
wherein the first inorganic insulating layer and the second inorganic insulating layer extend to the third area from the first area via the second area, and
wherein the second inorganic insulating layer includes, in the third area, a plurality of inorganic patterns that are spaced apart from each other with second spaced regions between the plurality of inorganic patterns.

8. The display apparatus as claimed in claim 7 , wherein, in the second spaced regions, at least a portion of the first inorganic insulating layer is exposed.

9. The display apparatus as claimed in claim 7 , wherein the first inorganic layer and the second inorganic layer extend to the third area and directly surface-contact each other in the third area.

10. The display apparatus as claimed in claim 9 , wherein the first inorganic layer directly contacts the exposed portion of the first inorganic insulating layer in the second spaced regions.

11. The display apparatus as claimed in claim 8 , further comprising a metal layer covering the plurality of inorganic patterns.

12. The display apparatus as claimed in claim 11 , wherein the metal layer directly contacts the exposed portion of the first inorganic insulating layer in the second spaced regions.

13. The display apparatus as claimed in claim 11 , wherein:
the TFT includes a semiconductor layer, a gate electrode, a source electrode, and a drain electrode,
the first inorganic insulating layer is between the semiconductor layer and the gate electrode, and
the second inorganic insulating layer is between the gate electrode and the source electrode or between the gate electrode and the drain electrode.

14. The display apparatus as claimed in claim 13 , wherein the metal layer includes a same material as the source electrode or the drain electrode.

15. The display apparatus as claimed in claim 7 , wherein the first inorganic insulating layer and the buffer layer in the second spaced regions include a plurality of second trenches.

16. The display apparatus as claimed in claim 15 , wherein the plurality of second trenches penetrate the first inorganic insulating layer.

17. The display apparatus as claimed in claim 15 , wherein the plurality of second trenches do not completely penetrate the buffer layer.

18. The display apparatus as claimed in claim 15 , wherein the third area is a bending area that is bent around the bending axis.

19. The display apparatus as claimed in claim 17 , wherein the plurality of second trenches extend along the bending axis.

Assignees

• Samsung Display Co Ltd

Inventors

• Choi Jinhwan
• Yang Taehoon
• Park Boik
• Seo Taean
• Lee Kiyong

Classifications

• Y02E10/549

  Organic PV cells · CPC title

• H01L27/3262

  Electricity · mapped topic

• H01L27/3248

  Electricity · mapped topic

• H01L27/3258

  Electricity · mapped topic

• H01L51/5246

  Electricity · mapped topic