IP Library Granted Patent US 11,227,901
Granted Patent B2
US 11,227,901 · App. 16/841,746 · Granted Jan 18, 2022

Display device having an oxide conductive layer sandwiched by wirings

Inventors: Mitsuhide Miyamoto (Tokyo, JP); Yuko Matsumoto (Tokyo, JP)
Assignee: Japan Display Inc.
H01L27/323H01L27/3258H01L27/3276H01L51/0097H01L51/5253G02F1/133305H01L27/14678H01L33/44H01L2251/301H01L2251/5338
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Quick Facts
Patent No.
US 11,227,901
App. No.
16/841,746
Granted
Jan 18, 2022
Kind
B2
Abstract

The display device includes a substrate, a display region arranged on the substrate and including a plurality of pixels, a first wiring provided on the substrate, an insulating layer overlapping a portion of the first wiring, an oxide conductive layer provided on the first wiring and electrically connected to the first wiring, a sealing layer overlapping the display region and at least an end of the oxide conductive layer and sealing the plurality of pixels, a sensor electrode provided on the sealing layer and overlapping the display region, and a second wiring passing over the at least end of the oxide conductive layer provided with the sealing layer and electrically connecting the sensor electrode and the oxide conductive layer.

Claims (31)

1. A display device comprising:

a substrate;

a display region arranged on the substrate and including a plurality of pixels;

a first wiring provided on the substrate;

an insulating layer overlapping a portion of the first wiring;

an oxide conductive layer provided on the first wiring and electrically connected to the first wiring;

a sealing layer overlapping the display region and sealing the plurality of pixels, the sealing layer including:

a first inorganic film;

an organic film; and

a second inorganic film, wherein

the first inorganic film and the second inorganic film overlaps at least an end of the oxide conductive layer;

a sensor electrode provided on the sealing layer and overlapping the display region; and

a second wiring passing over the at least end of the oxide conductive layer provided with the sealing layer and electrically connecting the sensor electrode and the oxide conductive layer.

2. The display device according to claim 1 , wherein the sealing layer has an island-shaped opening above the oxide conductive layer, the sealing layer is provided so as to surround all ends of the island-shaped opening to expose a surface of the oxide conductive layer in a region surrounded by the ends.

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

a second insulating layer provided immediately below the second wiring.

4. The display device according to claim 3 , wherein

the second insulating layer includes a first opening exposing the oxide conductive layer, and

ends of the first inorganic insulating film and the second inorganic insulating film are provided between an end of first opening and the display region.

5. The display device according to claim 1 , further comprising a third wiring provided between the oxide conductive layer and the second wiring.

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

a flexible printed circuit board electrically connected to the first wiring, wherein the flexible printed circuit board drives the plurality of pixels and a touch sensor including the sensor electrode.

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

a second oxide conductive layer provided on the insulating layer and electrically connected to the first wiring; and

a flexible printed circuit board driving a touch sensor including the sensor electrode,

wherein

first inorganic film and the second inorganic film are further provided on at least an end of the second oxide conductive layer,

the flexible printed circuit board is provided on the end of the second oxide conductive layer provided with the sealing layer, and is electrically connected to the second oxide conductive layer.

8. The display device according to claim 1 , wherein the first sensor electrode and the second sensor electrode are insulated from each other and provided on the same insulating surface.

9. The display device according to claim 1 , wherein

the insulating layer is a layer containing an organic material.

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 Apr 7, 2020
From: MIYAMOTO, MITSUHIDE; MATSUMOTO, YUKO
To: JAPAN DISPLAY INC.
Reel/Frame 052327/0166 →
Priority Claims (1)
JP JP2017-202379 · Oct 19, 2017 · national
Continuity (2)
Continuation PCTJP2018032548 · Sep 3, 2018
Related Publication 20200235169A1 · Jul 23, 2020