Organic light-emitting diode (OLED) display and method of fabricating the same

Patent metadata

Field	Value
Publication number	US-11056670-B2
Application number	US-201815925306-A
Country	US
Kind code	B2
Filing date	Mar 19, 2018
Priority date	Dec 16, 2013
Publication date	Jul 6, 2021
Grant date	Jul 6, 2021

Abstract

An organic light-emitting diode (OLED) display and method of fabricating the same are disclosed. In one aspect, the OLED display includes a first substrate including a display area and a peripheral area surrounding the display area. The display area includes a plurality of pixels each including an OLED and the peripheral area includes a signal driver electrically connected to the pixels. A conductive layer is formed over the signal driver and on opposing sides of the signal driver and a second substrate is formed over the first substrate. The OLED display further includes a first seal interposed between the first and second substrates in the peripheral area and substantially sealing the first and second substrates and a second seal surrounding the first seal and formed over the signal driver.

First claim

What is claimed is:

1. An organic light-emitting diode (OLED) display, comprising:
a substrate including a display area and a peripheral area surrounding the display area;
a passivation layer over the substrate in the display area and the peripheral area;
a plurality of pixels formed over the passivation layer in the display area;
a signal driver formed in the peripheral area and electrically connected to the pixels;
a first seal formed in the peripheral area surrounding the pixels, the first seal extending through an opening in the passivation layer; and
a second seal at least partially overlapping the signal driver and surrounding the first seal, the second seal being arranged over the passivation layer so as to overlap the passivation layer.

2. The OLED display of claim 1 , wherein the height of the first seal is greater than that of the second seal, wherein the height is measured in a direction perpendicular to an upper surface of the substrate.

3. The OLED display of claim 2 , wherein the width of the first seal is less than that of the second seal, wherein the width is measured in a direction parallel to the upper surface of the substrate.

4. The OLED display of claim 1 , wherein the first and second seals do not contact each other.

5. The OLED display of claim 1 , wherein the first and second seals are formed of different materials.

6. The OLED display of claim 1 , further comprising an insulating layer disposed under the passivation layer.

7. The OLED display of claim 6 , wherein the opening of the passivation layer exposes a portion of the insulating layer.

8. The OLED display of claim 7 , wherein the first seal directly contacts the portion of the insulating layer via the opening.

9. The OLED display of claim 6 , wherein the second seal directly contacts a portion of the passivation layer.

10. An organic light-emitting diode (OLED) display, comprising:
a substrate including a display area and a peripheral area surrounding the display area;
a plurality of pixels formed in the display area;
a signal driver formed in the peripheral area and electrically connected to the pixels, the signal driver comprising a metal pattern and a conductive layer over the metal pattern;
a first seal comprising a glass frit and formed in the peripheral area surrounding the pixels; and
a second seal at least partially overlapping the signal driver and surrounding the first seal,
wherein the first seal is spaced inwardly from the metal pattern and the conductive layer of the signal driver.

11. The OLED display of claim 10 , wherein the second seal comprises an epoxy resin.

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Do-Hoon

Classifications

• H10K2102/302

  of OLED structures · CPC title

• H10K71/621 Primary

  Providing a shape to conductive layers, e.g. patterning or selective deposition · CPC title

• H10K71/00

  Manufacture or treatment specially adapted for the organic devices covered by this subclass · CPC title

• H10K59/12

  Active-matrix OLED [AMOLED] displays · CPC title

• H10K59/872

  Containers · CPC title