IP Library Granted Patent US 12,111,993
Granted Patent B2
US 12,111,993 · App. 18/516,394 · Granted Oct 8, 2024

Display device with touch detection function and electronic apparatus

Inventors: Koji Ishizaki (Tokyo, JP); Hayato Kurasawa (Tokyo, JP); Kohei Azumi (Tokyo, JP)
Assignee: Japan Display Inc.
G06F3/0412G02F1/13338G02F1/133512G02F1/133514G02F1/134336G06F3/04166G06F3/0445G06F3/0446G02F2201/123G02F2201/52G06F2203/04107G06F2203/04108G06F2203/04111G06F2203/04112
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Quick Facts
Patent No.
US 12,111,993
App. No.
18/516,394
Granted
Oct 8, 2024
Kind
B2
Abstract

According to an aspect, a display device with a touch detection function includes: a substrate; a drive electrode that extends in a first direction; and a plurality of touch detection electrodes that are metal wirings extending in a second direction different from the first direction. The metal wirings are arranged with a predetermined pitch so as to make capacitive coupling with the drive electrode.

Claims (26)

1. A display device with a touch detection device, comprising

a plurality of scan lines each extending in a first direction;

a plurality of signal lines each extending in a second direction crossing the first direction;

a plurality of display elements that are surrounded by the scan lines and the signal lines; and

a plurality of touch detection electrodes including a first thin metal wire, a second thin metal wire, a third thin metal wire, and a fourth thin metal wire that are opposed to the display elements,

wherein

the first thin metal wire, the second thin metal wire, the third thin metal wire, and the fourth thin metal wire each are straight line,

the first thin metal wire and the fourth thin metal wire each extend in a third direction different from the first and second directions,

the second thin metal wire and the third thin metal wire each extend in a fourth direction different from the first, second, and third directions,

the first thin metal wire crosses the third thin metal wire,

the second thin metal wire crosses the fourth thin metal wire,

one end of the first thin metal wire is connected to one end of the second thin metal wire at a first connection point,

one end of the third thin metal wire is connected to one end of the third thin metal wire at a second connection point, and

the first thin metal wire, the second thin metal wire, the third thin metal wire, and the fourth thin metal wire each cross the scan lines.

2. The display device with a touch detection device according to claim 1 ,

wherein the touch detection electrodes are arranged in a same layer.

3. The display device with a touch detection device according to claim 1 ,

wherein a pitch of the display elements is less than each of a first length of the first thin metal wire, a second length of the second thin metal wire, a third length of the third thin metal wire, and the fourth length of the fourth thin metal wire.

4. The display device with a touch detection device according to claim 1 ,

wherein the touch detection electrodes are coupled to a touch detection circuit to detect an external approaching object.

5. The display device with a touch detection device according to claim 1 ,

wherein the touch detection electrodes extend overall in the second direction.

6. The display device with a touch detection device according to claim 1 ,

wherein the first thin metal wire, the second thin metal wire, the third thin metal wire, and the fourth thin metal wire are disposed on a same layer.

7. The display device with a touch detection device according to claim 1 ,

wherein the first connection point and the second connection point are aligned along the first direction.

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 Nov 22, 2023
From: ISHIZAKI, KOJI; KURASAWA, HAYATO; AZUMI, KOHEI
To: JAPAN DISPLAY INC.
Reel/Frame 065647/0346 →
Priority Claims (1)
JP 2012-263803 · Nov 30, 2012 · national
Continuity (9)
Continuation 17736275 · May 4, 2022
Continuation 17208341 · Mar 22, 2021
Continuation 16826407 · Mar 23, 2020
Continuation 16421106 · May 23, 2019
Continuation 16058565 · Aug 8, 2018
Continuation 15452980 · Mar 8, 2017
Continuation 15064909 · Mar 9, 2016
Continuation 14082826 · Nov 18, 2013
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