IP Library Granted Patent US 10,833,133
Granted Patent B2
US 10,833,133 · App. 16/653,078 · Granted Nov 10, 2020

Display device

Inventors: Hiroki Ohara (Minato-ku, JP); Akinori Kamiya (Minato-ku, JP); Hiraaki Kokame (Minato-ku, JP)
Assignee: Japan Display Inc.
H01L27/323G06F3/0412G06F3/0445H01L27/3276H01L51/5253G06F3/0448
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Quick Facts
Patent No.
US 10,833,133
App. No.
16/653,078
Granted
Nov 10, 2020
Kind
B2
Abstract

A display device includes a sealing film covering a display region where an image is displayed, a touch sensor layer configured to detect a touched position of the display region, the touch sensor layer including a first electrode layer that is arranged on the sealing film, a first insulating layer that is formed on the first electrode layer using a material including nitrogen, and a second electrode layer that is arranged over the first insulating layer, an overcoat covering the touch sensor layer, and a polarizing plate being arranged on the overcoat. The touch sensor layer further includes a second insulating layer configured to inhibit a reaction between nitrogen included in the first insulating layer and water included in the overcoat, the second insulating layer being formed between the first insulating layer and the overcoat using a material not including nitrogen.

Claims (16)

1. A display device comprising:

a sealing film covering a display region where an image is configured to be displayed;

a touch sensor layer configured to detect a touched position of the display region, the touch sensor layer including a first electrode layer that is arranged on the sealing film, a first insulating layer that is formed on the first electrode layer using a material including nitrogen, and a second electrode layer that is arranged over the first insulating layer;

an overcoat covering the touch sensor layer; and

a polarizing plate being arranged on the overcoat, wherein

the touch sensor layer further includes a second insulating layer configured to inhibit a reaction between nitrogen included in the first insulating layer and water included in the overcoat, the second insulating layer being formed between the first insulating layer and the overcoat using a material not including nitrogen.

2. The display device according to claim 1 , wherein

the second insulating layer is arranged between the first insulating layer and the second electrode layer and covers the first insulating layer.

3. The display device according to claim 1 , wherein

the second insulating layer is arranged between the second electrode layer and the overcoat and covers the display region.

4. The display device according to claim 1 , wherein

the first insulating layer is formed of silicon nitride, and

the second insulating layer is formed of silicon oxide or alumina.

5. The display device according to claim 1 , further comprising:

a plurality of pixels that are arranged in the display region in a matrix shape and each of which emits light from a light emitting region, wherein

the first electrode layer and the second electrode layer have a mesh shape and are arranged such that a mesh hole and the light emitting region overlap each other.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 22, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 072130/0313 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 15, 2019
From: OHARA, HIROKI; KAMIYA, AKINORI; KOKAME, HIRAAKI
To: JAPAN DISPLAY INC.
Reel/Frame 050718/0835 →
Priority Claims (1)
JP 2018-203750 · Oct 30, 2018 · national
Continuity (1)
Related Publication 20200135812A1 · Apr 30, 2020
Cited By (1)
US 12,455,664