Display unit, method of manufacturing display unit, and electronic apparatus

Patent metadata

Field	Value
Publication number	US-10109693-B2
Application number	US-201514603816-A
Country	US
Kind code	B2
Filing date	Jan 23, 2015
Priority date	Feb 6, 2014
Publication date	Oct 23, 2018
Grant date	Oct 23, 2018

Abstract

A display unit includes: a drive wire; a planarization layer covering the drive wire and having a connection hole; a relay electrode provided on the planarization layer and configured to be electrically connected to the drive wire through the connection hole; a filling member made of an insulating material and provided in the connection hole; a first partition wall made of a same material as that of the filling member and covering an end of the relay electrode; a first electrode covering the filling member and configured to be electrically connected to the relay electrode; a second electrode facing the first electrode; and a functional layer located between the first electrode and the second electrode, the functional layer including a light-emitting layer.

First claim

What is claimed is:

1. A display unit comprising:
a drive wire;
a planarization layer covering the drive wire and having a connection hole;
a relay electrode provided on the planarization layer and configured to be electrically connected to the drive wire through the connection hole;
a filling member made of an insulating material, having an upper surface with a convex portion above the relay electrode, and provided in the connection hole;
a first partition wall made of a same material as that of the filling member, and covering an end of the relay electrode;
a first electrode covering the filling member, not covered by the first partition wall, and configured to be in direct contact with and electrically connected to the relay electrode on both sides of the connection hole, viewed in cross-section;
a second electrode facing the first electrode; and
a functional layer located between the first electrode and the second electrode, the functional layer including a light-emitting layer.

2. The display unit according to claim 1 , wherein the connection hole is filled with the filling member.

3. The display unit according to claim 1 , further comprising a first reflecting member on a side surface of the first partition wall.

4. The display unit according to claim 1 , further comprising a third partition wall made of a same material as that of the filling member and covering a part of the relay electrode.

5. The display unit according to claim 4 , wherein a plurality of the third partition walls are provided with spaces in between.

6. The display unit according to claim 4 , further comprising a second reflecting member on a side surface of the third partition wall.

7. The display unit according to claim 1 , wherein
the first electrode includes a light-reflective material, and
the second electrode includes a light-transmissive material.

8. The display unit according to claim 1 , wherein
the relay electrode includes a light-reflective material, and
each of the first electrode and the second electrode includes a light-transmissive material.

9. The display unit according to claim 1 , wherein
each of the drive wire, the relay electrode, and the first electrode includes a light-transmissive material, and
the second electrode includes a light-reflective material.

10. The display unit according to claim 1 , wherein one relay electrode is configured to be electrically connected to the drive wire through a plurality of the connection holes.

11. The display unit according to claim 1 , wherein a thickness of the first electrode is smaller than a thickness of the relay electrode.

12. The display unit according to claim 1 , wherein the functional layer is configured of an organic layer.

13. An electronic apparatus provided with a display unit, the display unit comprising:
a drive wire;
a planarization layer covering the drive wire and having a connection hole;
a relay electrode provided on the planarization layer and configured to be electrically connected to the drive wire through the connection hole;
a filling member made of an insulating material, having an upper surface with a convex portion above the relay electrode, and provided in the connection hole;
a first partition wall made of a same material as that of the filling member, and covering an end of the relay electrode;
a first electrode covering the filling member, not covered by the first partition wall, and configured to be in direct contact with and electrically connected to the relay electrode on both sides of the connection hole, viewed in cross-section;
a second electrode facing the first electrode; and
a functional layer located between the first electrode and the second electrode, the functional layer including a light-emitting layer.

14. A method of manufacturing a display unit comprising:
forming a drive wire;
forming a planarization layer covering the drive wire, and then forming a connection hole in the planarization layer;
forming a relay electrode on the planarization layer and configuring the relay electrode to be electrically connected to the drive wire through the connection hole;
forming a filling member made of an insulating material in the connection hole, the filling member having an upper surface with a convex portion above the relay electrode, and forming a first partition wall covering an end of the relay electrode with use of a same process and layer, and a same material as that of the filling member;
forming a first electrode to cover the filling member, not covered by the first partition wall, and configuring the first electrode to be in direct contact with and electrically connected to the relay electrode on both sides of the connection hole, viewed in cross-section; and
forming a functional layer including a light-emitting layer and a second electrode in this order on the first electrode.

Assignees

• Sony Corp

Inventors

• Teraguchi Shinichi
• Negishi Eisuke
• Kudo Shuji

Classifications

• H01L27/322

  Electricity · mapped topic

• H01L51/5271

  Electricity · mapped topic

• H01L51/5234

  Electricity · mapped topic

• H01L27/3276

  Electricity · mapped topic

• H01L51/5218

  Electricity · mapped topic