Display device and electronic apparatus

Patent metadata

Field	Value
Publication number	US-11309338-B2
Application number	US-201716301067-A
Country	US
Kind code	B2
Filing date	Mar 28, 2017
Priority date	May 24, 2016
Publication date	Apr 19, 2022
Grant date	Apr 19, 2022

Abstract

Provided is a display device and an electronic apparatus that prevent the occurrence of failure in the connection between a mounting substrate and an electronic component. The display device includes an interconnection layer provided on a support substrate, a plurality of insulating layers provided above the interconnection layer, an opening provided in parts of the insulating layers, and a metal layer electrically connected to the interconnection layer and filling the opening up to a height below a layer surface of the insulating layer.

First claim

The invention claimed is:

1. A display device, comprising:
a first interconnection layer on a support substrate;
a first insulating layer on the first interconnection layer;
a second interconnection layer on the first insulating layer;
a second insulating layer on the second interconnection layer;
a first opening and a second opening, wherein
the second opening includes the first opening,
each of the first opening and the second opening pierces each of the second insulating layer and the first insulating layer,
a shape of each of the first opening and the second opening is substantially circular, and
a center of the first opening is different from a center of the second opening;

a first metal layer in the first opening and a second metal layer in the second opening, wherein
the first metal layer is electrically connected to the first interconnection layer,
the second metal layer is on the first metal layer,
the first metal layer and the second metal layer are not connected to the second interconnection layer,
each of the second metal layer and the first metal layer fills the first opening up to a height below a layer surface of the second insulating layer,
the first metal layer has a different material from the second metal layer.

2. The display device according to claim 1 , wherein the first interconnection layer is electrically insulated from the second interconnection layer.

3. The display device according to claim 1 , wherein the shape of the first opening is different in each of the second insulating layer and the first insulating layer.

4. The display device according to claim 3 , wherein the shape of the first opening in the first insulating layer is smaller than the shape of the first opening in the second insulating layer.

5. The display device according to claim 3 ,
wherein the shape of the first opening in the first insulating layer is coaxial with the shape of the first opening in the second insulating layer.

6. The display device according to claim 3 , wherein
the shape of the first opening in the first insulating layer is a shape that extends in a direction orthogonal to a direction of extension of the first interconnection layer, and
the first insulating layer is in contact with the first interconnection layer.

7. The display device according to claim 1 , wherein
a material of the first metal layer contains a platinum group element, and
the second metal layer is solder.

8. The display device according to claim 1 , further comprising an electronic component facing the support substrate, wherein
the second metal layer is solder, and
the electronic component is electrically connected to the support substrate via the solder.

9. The display device according to claim 1 , wherein the support substrate is a display panel including an optical element.

10. An electronic apparatus, comprising:
a first interconnection layer on a support substrate;
a first insulating layer on the first interconnection layer;
a second interconnection layer on the first insulating layer;
a second insulating layer on the second interconnection layer;
a first opening and a second opening, wherein
the second opening includes the first opening,
each of the first opening and the second opening pierces each of the second insulating layer and the first insulating layer,
a shape of each of the first opening and the second opening is substantially circular, and
a center of the first opening is different from a center of the second opening;

a first metal layer in the first opening and a second metal layer in the second opening, wherein
the first metal layer is electrically connected to the first interconnection layer,
the second metal layer is on the first metal layer,
the first metal layer and the second metal layer are not connected to the second interconnection layer,
each of the second metal layer and the first metal layer fills the first opening up to a height below a layer surface of the second insulating layer,
the first metal layer has a different material from the second metal layer.

11. The display device according to claim 1 , wherein a thickness of the first insulating layer is different from a thickness of the second insulating layer.

Assignees

• Sony Corp

Inventors

• Watanabe Toshihiko
• Aoyagi Akiyoshi
• Nakayama Hirokazu

Classifications

• H10W70/695 Primary

  Organic materials · CPC title

• H10W70/66

  Conductive materials thereof · CPC title

• H10W70/65

  Shapes or dispositions of interconnections · CPC title

• H10D86/021

  of multiple TFTs · CPC title

• H10D86/443

  adapted for preventing breakage, peeling or short circuiting · CPC title