IP Library Granted Patent US 11,809,031
Granted Patent B2
US 11,809,031 · App. 17/190,647 · Granted Nov 7, 2023

Display device

Inventors: Hiroyuki Abe (Tokyo, JP); Kazune Matsumura (Tokyo, JP); Gen Koide (Tokyo, JP); Kentaro Agata (Tokyo, JP)
Assignee: Japan Display Inc.
G02F1/133337G02F1/1345G02F1/13629G02F1/136209G02F1/13338G02F1/13685G02F1/134363G02F2201/56
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Quick Facts
Patent No.
US 11,809,031
App. No.
17/190,647
Granted
Nov 7, 2023
Kind
B2
Abstract

A display device includes a substrate, a display region in which a plurality of pixels are provided on the substrate and that has a first side, a second side, a third side, a fourth side, and a plurality of curved portions, a peripheral region located between an end portion of the substrate and the display region, a plurality of scan lines extending in a first direction, a plurality of signal lines extending in a second direction, at least one gate driver arranged in the peripheral region and coupled to the scan lines, a signal line coupling circuit arranged in the peripheral region and coupled to the signal lines, a plurality of terminals aligned in the peripheral region, and a plurality of wiring lines coupling the terminals and the signal line coupling circuit.

Claims (56)

1. A display device comprising:

a substrate;

a display region in which a plurality of pixels are provided on the substrate and that has a first side, a second side, a third side, a fourth side, and a plurality of curved portions;

a peripheral region located between an end portion of the substrate and the display region;

a plurality of scan lines extending in a first direction;

a plurality of signal lines extending in a second direction;

at least one gate driver arranged in the peripheral region and coupled to the scan lines;

a signal line coupling circuit arranged in the peripheral region and coupled to the signal lines;

a plurality of terminals aligned in the peripheral region; and

a plurality of wiring lines coupling the terminals and the signal line coupling circuit, wherein

an ion trap electrode to which a fixed potential is to be applied is provided between the gate driver and a wiring region in which the wiring lines are arranged around at least one of the curved portions.

2. The display device according to claim 1 , wherein the ion trap electrode has a U shape when seen from above between the gate driver and the wiring region.

3. The display device according to claim 1 , wherein

the third side faces the fourth side, and the second side faces the first side, and

the ion trap electrode extends and is continuously coupled so as to be along the third side, the second side, and the fourth side.

4. The display device according to claim 3 , wherein

a plurality of the gate drivers are provided, and the gate drivers are respectively arranged along the third side and the fourth side, and

the ion trap electrode is arranged between one of the gate drivers and the third side and between the other of the gate drivers and the fourth side.

5. The display device according to claim 1 , wherein

the ion trap electrode includes

a first conductive layer provided in the same layer as the signal lines and

a second conductive layer that is electrically coupled to the first conductive layer and is provided above the first conductive layer with an insulating film interposed therebetween, and

as a distance between the gate driver and the wiring region is increased, a distance between the gate driver and the second conductive layer in the first direction is increased.

6. The display device according to claim 5 , wherein

the scan lines, the signal lines, a plurality of sensor wiring lines, a plurality of first electrodes, and a plurality of second electrodes are stacked in order with insulating films interposed therebetween in the display region,

the sensor wiring lines electrically couple the terminals and the first electrodes,

the second electrodes are partitioned by the respective pixels, and

the second conductive layer is provided in the same layer as the second electrodes.

7. A display device comprising:

a substrate;

a display region in which a plurality of pixels are provided on the substrate and that has a first side, a second side, a third side, and a fourth side;

a peripheral region located between an end portion of the substrate and the display region;

a plurality of scan lines extending in a first direction;

a plurality of signal lines extending in a second direction;

a signal line coupling circuit arranged in the peripheral region and coupled to the signal lines; and

a plurality of terminals aligned in the peripheral region, wherein

a notch portion of the display region is provided in the first side adjacent to the terminals,

the signal line coupling circuit is arranged along the first side and the notch portion, and

an ion trap electrode to which a fixed potential is to be applied is provided between the display region and the signal line coupling circuit in the notch portion.

8. The display device according to claim 7 , wherein

the scan lines, the signal lines, a plurality of sensor wiring lines, a plurality of first electrodes, and a plurality of second electrodes are stacked in order with insulating films interposed therebetween in the display region,

the sensor wiring lines electrically couple the terminals and the first electrodes,

the second electrodes are partitioned by the respective pixels, and

a wiring region in which the sensor wiring lines led out to the peripheral region are arranged and the ion trap electrode do not overlap with each other when seen from above.

9. The display device according to claim 8 , further comprising a shield layer provided in the same layer as the first electrodes and covering the peripheral region including the wiring region, wherein

the ion trap electrode does not overlap with the shield layer when seen from above.

10. The display device according to claim 7 , wherein

the ion trap electrode includes

a first conductive layer provided in the same layer as the signal lines and

a second conductive layer that is electrically coupled to the first conductive layer and is provided above the first conductive layer with an insulating film therebetween, and

the second conductive layer overlaps with the first conductive layer.

11. The display device according to claim 10 , wherein a width of the first conductive layer is larger than a width of the second conductive layer.

12. The display device according to claim 10 , wherein

the scan lines, the signal lines, a plurality of first electrodes, and a plurality of second electrodes are stacked in order with insulating films interposed therebetween in the display region on the substrate,

the first conductive layer is provided in the same layer as the signal lines, and

the second conductive layer is provided in the same layer as the second electrodes.

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 Mar 4, 2021
From: ABE, HIROYUKI; MATSUMURA, KAZUNE; KOIDE, GEN; AGATA, KENTARO
To: JAPAN DISPLAY INC.
Reel/Frame 055491/0672 →
Priority Claims (1)
JP 2018-165505 · Sep 4, 2018 · national
Continuity (2)
Continuation PCTJP2019031774 · Aug 9, 2019
Related Publication 20210181568A1 · Jun 17, 2021