Display unit with organic layer disposed on metal layer and insulation layer

Patent metadata

Field	Value
Publication number	US-11563198-B2
Application number	US-202017038855-A
Country	US
Kind code	B2
Filing date	Sep 30, 2020
Priority date	Oct 9, 2014
Publication date	Jan 24, 2023
Grant date	Jan 24, 2023

Abstract

A display unit includes a plurality of pixels, a reflector layer, and an auxiliary electrode. Each of the plurality of pixels has a first electrode, an organic layer, and a second electrode in this order. The organic layer and the second electrode are provided on the first electrode. The organic layer includes a light-emitting layer. The reflector layer has a light-reflecting surface around each of the pixels. The auxiliary electrode is provided on the reflector layer and is projected from an upper end of the light-reflecting surface. The auxiliary electrode has a portion which is exposed from the organic layer, and the exposed portion is covered with the second electrode.

First claim

The invention claimed is:

1. A display unit, comprising:
a substrate;
a plurality of pixel circuits arranged on the substrate;
a planarization layer arranged on the plurality of pixel circuits; and
a plurality of light emitting elements disposed on the planarization layer, wherein the plurality of light emitting elements include at least three light emitting elements,
wherein each of the plurality of light emitting elements include a first electrode, an organic layer, and a second electrode, and the organic layer is commonly provided for each of the three light emitting elements,
an insulation layer is disposed on the first electrode,
a metal layer is disposed on the insulation layer,
a first part of the organic layer is disposed on a top surface and a side surface of the metal layer, and
a second part of the organic layer is disposed on a side surface of the insulation layer, the second part of the organic layer being separate from the first part of the organic layer.

2. The display unit of claim 1 , wherein the insulation layer is a reflector.

3. The display unit of claim 1 , wherein the metal layer is an auxiliary electrode.

4. The display unit of claim 1 , wherein a width of a bottom surface of the metal layer is wider than a width of a top surface of the insulation layer.

5. The display unit of claim 1 , wherein the first part of the organic layer is in contact with a side surface of the metal layer.

Assignees

• Sony Corp

Inventors

• Ueda Daisuke

Classifications

• H01L51/56

  Electricity · mapped topic

• H01L51/5271 Primary

  Electricity · mapped topic

• H01L27/322

  Electricity · mapped topic

• H01L51/5228

  Electricity · mapped topic

• H01L27/3246

  Electricity · mapped topic