IP Library › Granted Patent US 12,321,553
Granted Patent B2
US 12,321,553 · App. 18/200,530 · Granted Jun 3, 2025

Electronic device

Inventors: Sanghyun Jun (Suwon-si, KR); Hwan-hee Jeong (Cheonan-si, KR); Kicheol Kim (Yongin-si, KR); Jaehyun Lee (Seoul, KR); Hyun-wook Cho (Seongnam-si, KR)
Assignee: Samsung Display Co., Ltd.
G06F3/0443G06F1/1643G06F3/041G06F3/0412G06F2203/04104G06F2203/04112
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Quick Facts
Patent No.
US 12,321,553
App. No.
18/200,530
Granted
Jun 3, 2025
Kind
B2
Abstract

An electronic device includes a first electrode, a second electrode, and a third electrode. The first electrode includes a first boundary side extending in a direction. The second electrode includes a second boundary side extending in the direction. The third electrode is disposed between and spaced apart from the first electrode and the second electrode. The third electrode includes a first side facing the first boundary side and a second side facing the second boundary. The first side and the second side have shapes that are asymmetric to each other with respect to a center axis extending in the direction.

Claims (53)

1. An electronic device, comprising:

a display member comprising light emitting elements; and

a sensing layer disposed on the display member, the sensing layer comprising:

a first mesh electrode including a plurality of first protruding patterns;

a second mesh electrode including a plurality of second protruding patterns, and spaced apart from the first mesh electrode in a first direction; and

a third mesh electrode between the first mesh electrode and the second mesh electrode, and insulated from and spaced apart from the first mesh electrode and the second mesh electrode,

wherein each of the first mesh electrode, the second mesh electrode, and the third mesh electrode comprises:

a plurality of first mesh lines each extending in a second direction crossing the first direction and spaced apart along the first direction; and

a plurality of second mesh lines each extending in the first direction and spaced apart along the second direction,

wherein each of the plurality of first protruding patterns protrudes toward the second mesh electrode, and each of the plurality of second protruding patterns protrudes toward the first mesh electrode,

wherein the plurality of first protruding patterns and the plurality of second protruding patterns have shapes different from each other, and

wherein at least one of the plurality of first or second mesh lines of the third mesh electrode is located between a first protruding pattern and a second protruding pattern facing each other from among the first and second protruding patterns.

2. The electronic device of claim 1 , wherein a width of each of the plurality of first protruding patterns in the second direction is different from a width of each of the plurality of second protruding patterns in the second direction.

3. The electronic device of claim 1 , wherein a length of each of the plurality of first protruding patterns in the first direction is different from a length of each of the plurality of second protruding patterns in the first direction.

4. The electronic device of claim 1 , wherein an area of each of the plurality of first protruding patterns is different from an area of each of the plurality of second protruding patterns.

5. The electronic device of claim 1 , wherein the plurality of first protruding patterns have a first pitch, and the plurality of second protruding patterns have a second pitch different from the first pitch.

6. The electronic device of claim 1 , wherein a number of second mesh lines included in each of the plurality of first protruding patterns and a number of second mesh lines included in each of the plurality of second protruding patterns are different from each other.

7. The electronic device of claim 1 , wherein a width of the third mesh electrode in the first direction is variable along the second direction.

8. The electronic device of claim 1 , wherein the third mesh electrode further comprises:

a plurality of third protruding patterns, each of which protrudes toward the first mesh electrode and is disposed between adjacent first protruding patterns among the plurality of first protruding patterns; and

a plurality of fourth protruding patterns, each of which protrudes toward the second mesh electrode and is disposed between adjacent second protruding patterns among the plurality of second protruding patterns.

9. The electronic device of claim 8 , wherein the plurality of third protruding patterns and the plurality of fourth protruding patterns have shapes different from each other.

10. The electronic device of claim 8 , wherein:

a separation distance between the first protruding patterns adjacent to each other is smaller than a separation distance between the second protruding patterns adjacent to each other; and

a width of each of the plurality of third protruding patterns in the second direction is smaller than a width of each of the plurality of fourth protruding patterns in the second direction.

11. The electronic device of claim 8 , wherein:

the third mesh electrode is divided into a first portion including the plurality of third protruding patterns and a second portion including the plurality of fourth protruding patterns by a central axis extending along the second direction;

the central axis passes through centers of portions of the third mesh electrode having a minimum width in the first direction; and

the first portion and the second portion have shapes that are asymmetric to each other with respect to the central axis.

12. The electronic device of claim 11 , wherein:

an area of the first mesh electrode is larger than an area of the second mesh electrode; and

an area of the first portion is smaller than an area of the second portion.

13. The electronic device of claim 1 , wherein:

the plurality of second mesh lines of the first mesh electrode and the plurality of second mesh lines of the third mesh electrode facing each other are disconnected and spaced apart by a plurality of first cutting portions; and

the plurality of second mesh lines of the second mesh electrode and the plurality of second mesh lines of the third mesh electrode facing each other are disconnected and spaced apart by a plurality of second cutting portions.

14. The electronic device of claim 1 , wherein:

the plurality of first mesh lines of the first mesh electrode and the plurality of first mesh lines of the third mesh electrode facing each other are disconnected and spaced apart by a plurality of third cutting portions; and

the plurality of first mesh lines of the second mesh electrode and the plurality of first mesh lines of the third mesh electrode facing each other are disconnected and spaced apart by a plurality of fourth cutting portions.

15. The electronic device of claim 1 , wherein one of the first mesh electrode or the second mesh electrode comprises:

a sensor part adjacent to the third mesh electrode; and

a floating pattern spaced apart from the third mesh electrode with the sensor part disposed therebetween, the floating pattern electrically disconnected from the sensor part.

16. The electronic device of claim 15 , wherein an area of the sensor part of the one of the first mesh electrode or the second mesh electrode is substantially equivalent to an area of the other one of the first mesh electrode or the second mesh electrode.

17. The electronic device of claim 1 , wherein:

the display member further comprises an encapsulation layer covering the light emitting elements;

the sensing layer further comprises an insulating layer disposed directly on the encapsulation layer; and

the first mesh electrode and the second mesh electrode are disposed on the insulating layer.

18. The electronic device of claim 1 , wherein:

the display member includes pixel regions in which lights respectively provided from the light emitting elements are displayed;

the plurality of first mesh lines and the plurality of second mesh lines are arranged to cross each other to define openings; and

the openings are defined at positions corresponding to the pixel regions in a plan view.

19. The electronic device of claim 1 , further comprising:

a self-capacitance measuring circuit configured to measure self-capacitance of each of the first mesh electrode and the second mesh electrode; and

a mutual-capacitance measuring circuit configured to measure mutual-capacitance between the first mesh electrode and the second mesh electrode.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 20, 2025
From: JUN, SANGHYUN; JEONG, HWAN-HEE; KIM, KICHEOL; LEE, JAEHYUN; CHO, HYUN-WOOK
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 070284/0113 →
Priority Claims (1)
KR 10-2017-0069828 · Jun 5, 2017 · national
Continuity (5)
Continuation 17827770 · May 29, 2022
Continuation 17306773 · May 3, 2021
Continuation 16672892 · Nov 4, 2019
Continuation 15964449 · Apr 27, 2018
Related Publication 20230297196A1 · Sep 21, 2023
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