IP Library Granted Patent US 12,449,921
Granted Patent B2
US 12,449,921 · App. 18/817,791 · Granted Oct 21, 2025

Display device with touch detection function and electronic apparatus

Inventors: Koji Ishizaki (Tokyo, JP); Hayato Kurasawa (Tokyo, JP); Kohei Azumi (Tokyo, JP)
Assignee: Magnolia White Corporation
G06F3/0412G02F1/13338G02F1/133512G02F1/133514G02F1/134336G06F3/04166G06F3/0445G06F3/0446G02F2201/123G02F2201/52G06F2203/04107G06F2203/04108G06F2203/04111G06F2203/04112
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12,449,921
App. No.
18/817,791
Granted
Oct 21, 2025
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 (27)

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

scan lines each extending overall in a first direction;

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

display elements;

thin film transistors each connected to a corresponding one of the display elements, the thin film transistors each being surrounded by the scan lines and the signal lines; and

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 intersects the third thin metal wire,

the second thin metal wire intersects the fourth thin metal wire,

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

the third thin metal wire is connected to the fourth 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 intersect 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 2, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 071793/0491 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 5, 2024
From: ISHIZAKI, KOJI; KURASAWA, HAYATO; AZUMI, KOHEI
To: JAPAN DISPLAY INC.
Reel/Frame 068500/0213 →
Priority Claims (1)
JP 2012-263803 · Nov 30, 2012 · national
Continuity (10)
Continuation 18516394 · Nov 21, 2023
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
Related Publication 20240419273A1 · Dec 19, 2024
References Cited (37)
US 20080129898A1 · Moon · 2008 [cited by applicant]
US 20100214262A1 · Ishizaki et al. · 2010 [cited by applicant]
US 20110156995A1 · Choi · 2011 [cited by applicant]
US 20120062511A1 · Ishizaki et al. · 2012 [cited by applicant]
US 20120105337A1 · Jun et al. · 2012 [cited by applicant]
US 20120113027A1 · Song et al. · 2012 [cited by applicant]
US 20120162096A1 · Lin et al. · 2012 [cited by applicant]
US 20120249444A1 · Lee et al. · 2012 [cited by applicant]
US 20130021321A1 · Kang · 2013 [cited by applicant]
US 20130063371A1 · Lee et al. · 2013 [cited by applicant]
US 20130147730A1 · Chien et al. · 2013 [cited by applicant]
US 20140293154A1 · Philipp · 2014 [cited by applicant]
CN 101211081A · 2008 [cited by applicant]
CN 101814256A · 2010 [cited by applicant]
CN 102053751A · 2011 [cited by applicant]
CN 102081479A · 2011 [cited by applicant]
CN 102402356A · 2012 [cited by applicant]
CN 102466907A · 2012 [cited by applicant]
CN 102541355A · 2012 [cited by applicant]
CN 102725714A · 2012 [cited by applicant]
CN 102736291A · 2012 [cited by applicant]
JP 2010197576A · 2010 [cited by applicant]
JP 2011138154A · 2011 [cited by applicant]
JP 2012198740A · 2012 [cited by applicant]
KR 1020120045288A · 2012 [cited by applicant]
TW 201217863A · 2012 [cited by applicant]
Office Action issued in related Chinese Patent Application No. 2022102789007, mailed on Aug. 30, 2024 and English translation of same. 12 pages. [cited by applicant]
Korean Office Action issued Jun. 30, 2015 in corresponding Korean Application No. 10-2013-0145035. [cited by applicant]
Notice of Rejection issued in connection with Japanese Patent Application No. 2012-263803, dated Mar. 31, 2015. (6 pages). [cited by applicant]
Taiwan Office Action for corresponding patent application No. 102140318 mailed on Jan. 26, 2015. [cited by applicant]
Chinese Office Action issued Apr. 5, 2016 in corresponding Chinese Application No. 2013106011096. [cited by applicant]
Chinese Office Action issued Nov. 25, 2013 in corresponding Chinese Application No. 2013106011096. [cited by applicant]
Chinese Office Action issued Jan. 27, 2021 in corresponding Chinese Application No. 201811099003.X. [cited by applicant]
Chinese Office Action issued Jul. 6, 2021 in corresponding Chinese Application No. 201811099003.X. [cited by applicant]
Chinese Office Action issued Aug. 19, 2023 in corresponding Chinese Application No. 202210278900.7. [cited by applicant]
Chinese Office Action issued May 10, 2024 in corresponding Chinese Application No. 202210278900.7. [cited by applicant]
Office Action issued in related Chinese patent application No. 202110644990.2, mailed on Feb. 18, 2025 and English translation of same. 14 pages. [cited by applicant]