Electronic device and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-10879337-B2
Application number	US-201916356156-A
Country	US
Kind code	B2
Filing date	Mar 18, 2019
Priority date	Jun 20, 2016
Publication date	Dec 29, 2020
Grant date	Dec 29, 2020

Abstract

An electronic device including a base structure, a first pattern having at least one projection disposed on the base structure, a first conductive layer including a first portion disposed on the base structure and a second portion disposed on the first pattern and connected to the first portion, an insulating layer disposed on the first conductive layer covering the first portion and exposing the second portion, and a second conductive layer provided on the insulating layer and overlapping the first conductive layer. The second conductive layer is spaced apart from the first portion and is in contact with the second portion. Methods of manufacturing an electronic device capable of reducing the number of process steps in the manufacturing process are also disclosed.

First claim

What is claimed is:

1. An electronic device, comprising:
a base structure;
a display layer disposed on the base structure and including a pixel defining layer having an opening defined therein and a light emitting layer disposed in the opening;
a thin-film encapsulation layer disposed on the display layer;
a sensing layer directly disposed on the thin-film encapsulation layer and detecting external input; and
a black matrix disposed on the sensing layer,
wherein:
the sensing layer comprises:
a plurality of first mesh lines disposed on the thin-film encapsulation layer;
an insulating layer covers the plurality of first mesh lines;
a plurality of second mesh lines disposed on the insulating layer; and
a passivation layer covers the plurality of second mesh lines; and

the black matrix overlaps the pixel defining layer, the plurality of first mesh lines, and the plurality of second mesh lines in a plan view.

2. The electronic device of claim 1 , wherein a width of the pixel defining layer and a width of the black matrix are the same.

3. The electronic device of claim 1 , wherein some of the plurality of first mesh lines are electrically connected to some of the plurality of second mesh lines.

4. The electronic device of claim 1 , wherein a width of the black matrix is greater than a width of each of the plurality of first mesh lines and the plurality of second mesh lines.

5. The electronic device of claim 1 , further comprising a step pattern disposed on the display layer and overlapping the pixel defining layer in the plan view.

6. The electronic device of claim 5 , wherein the plurality of first mesh lines include a first portion that is not overlapped with the step pattern in the plan view, and a second portion that overlaps the step pattern.

7. The electronic device of claim 6 , wherein a width of the step pattern is greater than a width of the second portion, the width of the step pattern is smaller than a width of the black matrix.

8. The electronic device of claim 6 , wherein a width of the black matrix and a width of the second portion are the same.

9. The electronic device of claim 8 , wherein a width of the stepped pattern is greater than the width of the black matrix.

10. The electronic device of claim 9 , wherein the stepped pattern is black.

11. The electronic device of claim 6 , wherein:
the plurality of first mesh lines comprises a plurality of first sensor portions, a plurality of first connecting portions, each of which is provided between the first sensor portions and connects adjacent ones of the first sensor portions, and a plurality of first dummy patterns, which are electrically disconnected from the first sensor portions and the first connecting portions; and
the plurality of second mesh lines comprises a plurality of second sensor portions, a plurality of second connecting portions, each of which is provided between adjacent ones of the second sensor portions and connects the adjacent ones of the second sensor portions, and a plurality of second dummy patterns, which are electrically disconnected from the second sensor portions and the second connecting portions.

12. The electronic device of claim 11 , wherein:
the step pattern comprises a plurality of step patterns, each of the plurality of step patterns overlapping a corresponding one of the plurality of first sensor portions; and
the second portion of each of the plurality of first sensor portions is connected to the plurality of second dummy patterns.

13. The electronic device of claim 11 , wherein:
the step pattern comprises a plurality of step patterns, each of the plurality of step patterns overlapping a corresponding one of the plurality of first sensor portions and a corresponding one of the plurality of first dummy patterns; and
the second portion of each of the plurality of first sensor portions is connected to the plurality of second dummy patterns, and the second portion of each of the plurality of first dummy patterns is connected to the plurality of second sensor portions.

14. The electronic device of claim 6 , wherein:
the plurality of second mesh lines comprises a plurality of first sensor portions, a plurality of first connecting portions, each of which is provided between adjacent ones of the first sensor portions and connects the adjacent ones of the first sensor portions, and a plurality of second sensor portions, which are electrically disconnected from the first sensor portions and the plurality of first connecting portions; and
the plurality of first mesh lines comprises a plurality of second connecting portions, each intersecting a corresponding one of the plurality of first connecting portions.

15. The electronic device of claim 14 , wherein:
the first pattern comprises a plurality of step patterns, each of the plurality of step patterns overlapping a corresponding one of the plurality of second connecting portions; and
the second portion of each of the plurality of second connecting portions is connected to the plurality of second sensor portions.

16. The electronic device of claim 1 , wherein the black matrix is directly disposed on the passivation layer.

17. An electronic device, comprising:
a base structure
a display layer disposed on the base structure and including a pixel defining layer having an opening defined therein and a light emitting layer disposed in the opening;
a thin-film encapsulation layer disposed on the display layer;
a sensing layer directly disposed on the thin-film encapsulation layer and detecting external input; and
a black matrix disposed on the sensing layer,
wherein:
the sensing layer comprises:
a first conductive layer disposed on the thin-film encapsulation layer;
an insulating layer disposed on the first conductive layer;
a second conductive layer disposed on the insulating layer; and
a passivation layer covers the second conductive layer;

the first conductive layer includes a plurality of connecting parts, and the second conductive layer includes a plurality of first portions, a plurality of second portions, and a plurality of sensing parts;
the plurality of connecting parts and the plurality of sensing parts are electrically connected; and
the black matrix overlaps the pixel defining layer, the plurality of connecting parts, the plurality of first portions, the plurality of second portions, and the plurality of sensing parts in a plan view.

18. The electronic device of claim 17 , wherein the black matrix is directly disposed on the passivation layer.

19. The electronic device of claim 17 , wherein the plurality of second portions are insulated from the plurality of connecting parts.

20. The electronic device of claim 17 , the insulating layer includes an organic material.

Assignees

• Samsung Display Co Ltd

Inventors

• Park Sungkyun
• Son Jungha
• Choi Sangkyu

Classifications

• G09F9/372

  the positions of the elements being controlled by the application of an electric field · CPC title

• G09F9/35

  being liquid crystals (G09F9/302 takes precedence; liquid crystal materials C09K19/00; {liquid crystal panels comprising a number of electrodes in a single cell per se G02F1/13}) · CPC title

• G09F9/335 Primary

  being organic light emitting diodes [OLED] · CPC title

• G06F3/0412

  Digitisers structurally integrated in a display · CPC title

• G02B26/005

  based on electrowetting · CPC title