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

Patent metadata

Field	Value
Publication number	US-11569474-B2
Application number	US-202117338385-A
Country	US
Kind code	B2
Filing date	Jun 3, 2021
Priority date	Dec 16, 2013
Publication date	Jan 31, 2023
Grant date	Jan 31, 2023

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. A method of fabricating an organic light-emitting diode (OLED) display, comprising:
providing a first substrate including a display area and a peripheral area surrounding the display area;
forming a first metal pattern on the peripheral area;
forming an insulating layer over the first metal pattern;
forming a second metal pattern overlapping the first metal pattern over the insulating layer;
forming a passivation layer over the second metal pattern;
patterning the passivation layer so as to surround the first and second metal patterns;
forming a conductive layer over the patterned passivation layer and on opposing sides of the patterned passivation layer in the peripheral area;
patterning the conductive layer to expose a portion of the passivation layer; forming a first seal in the peripheral area;
forming a second seal at least partially overlapping the exposed portion of the passivation layer and surrounding the first seal;
attaching a second substrate to the first substrate; and
curing the second seal.

2. The method of claim 1 , wherein the first and second seals are formed of different materials.

3. The method of claim 1 , wherein the first seal is formed of glass frit.

4. The method of claim 1 , wherein the second seal is formed of an epoxy resin.

5. The method of claim 1 , further comprising forming an OLED in the display area, wherein the OLED includes a pixel electrode and wherein the conductive layer is formed of the same material as the pixel electrode.

6. The method of claim 1 , wherein the attaching comprises irradiating laser light onto the first seal.

7. The method of claim 6 , wherein the irradiating comprises burning the passivation layer located under the first seal so that a hole is formed exposing a portion of the insulating layer and wherein the first seal is located inside the hole.

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Do-Hoon

Classifications

• H01L51/0023

  Electricity · mapped topic

• H01L2251/566

  Electricity · mapped topic

• H01L27/3276

  Electricity · mapped topic

• H01L51/5246 Primary

  Electricity · mapped topic

• H10K2102/302

  of OLED structures · CPC title