IP Library Granted Patent US 12,373,072
Granted Patent B2
US 12,373,072 · App. 18/537,755 · Granted Jul 29, 2025

Electronic device including a sensor layer having electrode groups and connecting trace lines

Inventors: Seung-Lyong Bok (Yongin-si, KR); Kicheol Kim (Yongin-si, KR)
Assignee: SAMSUNG DISPLAY CO., LTD.
G06F3/0446G06F3/0412G06F3/04164G06F3/0443
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Quick Facts
Patent No.
US 12,373,072
App. No.
18/537,755
Granted
Jul 29, 2025
Kind
B2
Abstract

An electronic device includes a display layer, and a sensor layer. A sensing area and a peripheral area are defined within the sensor layer. The sensor layer includes a plurality of first electrodes disposed in the sensing area, a plurality of first trace lines, a plurality of second electrode groups disposed in the sensing area, and a plurality of second trace lines electrically connected to the plurality of second electrode groups and overlapping the sensing area. The plurality of second electrode groups include a first-second electrode and a second-second electrode. The plurality of second trace lines include a plurality of first-second trace lines electrically connected to the first-second electrode and a second-second trace line electrically connected to the second-second electrode.

Claims (73)

1. An electronic device, comprising:

a display layer including a display area and a non-display area adjacent to the display area, wherein the display area includes a first area having a first light transmittance and a second area having a second light transmittance that is lower than the first light transmittance; and

a sensor layer including a sensing area and a peripheral area adjacent to the sensing area,

wherein the sensor layer includes:

a plurality of first electrodes disposed in the sensing area and arranged along a first direction;

a plurality of first trace lines electrically connected to the plurality of first electrodes;

a plurality of second electrode groups disposed in the sensing area,

arranged along a second direction intersecting the first direction, and intersects with the plurality of first electrodes; and

a plurality of second trace lines electrically connected to the plurality of second electrode groups and overlapping the sensing area,

wherein the plurality of second electrode groups includes a first-second electrode adjacent to the first area and a second-second electrode spaced apart from the first area,

wherein the plurality of second trace lines includes a plurality of first-second trace lines electrically connected to the first-second electrode and a second-second trace line electrically connected to the second-second electrode, and

wherein the first-second electrode is divided by the first area into distinct sections that are connected by the first-second trace lines on a one-to-one correspondence.

2. The electronic device of claim 1 , wherein the first-second electrode includes a first sub-electrode and a second sub-electrode spaced apart from the first sub-electrode with the first area interposed therebetween, and

wherein the plurality of first-second trace lines are electrically connected to the first and second sub-electrodes in a one-to-one correspondence, respectively.

3. The electronic device of claim 1 , wherein the sensor layer further includes a plurality of pads respectively connected to the plurality of first-second trace lines.

4. The electronic device of claim 1 , wherein the sensor layer further includes a pad electrically connected to the plurality of first-second trace lines.

5. The electronic device of claim 1 , wherein the sensor layer includes a plurality of sensing units, and each of the plurality of sensing units corresponds to an area where one of the plurality of first electrodes and one of the plurality of second electrode groups intersect each other.

6. The electronic device of claim 5 , wherein the plurality of sensing units include a first sensing unit having a first size and a second sensing unit having a second size that is greater than the first size.

7. The electronic device of claim 6 , wherein the second sensing unit is disposed in an area adjacent to the first area, and the first sensing unit is spaced apart from the second sensing unit in the second direction.

8. The electronic device of claim 7 , wherein a width in the first direction of the first sensing unit is equal to a width in the first direction of the second sensing unit, and

wherein a width in the second direction of the first sensing unit is smaller than a width in the second direction of the second sensing unit.

9. The electronic device of claim 6 , wherein the second sensing unit is disposed in an area adjacent to the first area, and the first sensing unit is spaced apart from the second sensing unit in the first direction.

10. The electronic device of claim 9 , wherein a width in the first direction of the first sensing unit is smaller than a width in the first direction of the second sensing unit, and

wherein a width in the second direction of the first sensing unit is smaller than a width in the second direction of the second sensing unit.

11. The electronic device of claim 5 , wherein the plurality of sensing units include a first sensing unit having a first shape and a second sensing unit having a second shape that is different from the first shape, and the first sensing unit is disposed in an area that is closer to the first area than to the second sensing unit.

12. The electronic device of claim 1 , wherein the sensor layer includes a first divided driving area and a second divided driving area adjacent to the first divided driving area in the first direction, and the first area overlaps the second divided driving area.

13. The electronic device of claim 12 , wherein the plurality of second electrode groups include a plurality of first divided electrodes overlapping the first divided driving area and arranged along the second direction, and a plurality of second divided electrodes overlapping the second divided driving area and arranged along the second direction,

wherein the plurality of second trace lines includes a plurality of first divided trace lines electrically connected to the plurality of first divided electrodes and a plurality of second divided trace lines electrically connected to the plurality of second divided electrodes, and

wherein the number of plurality of second divided trace lines is equal to or greater than the number of plurality of first divided trace lines.

14. The electronic device of claim 13 , wherein the number of plurality of second divided electrodes is equal to or greater than the number of plurality of first divided electrodes.

15. The electronic device of claim 13 , wherein a third area having a third light transmittance that is higher than the second light transmittance is further defined in the display area of the display layer, and the third area overlaps either the first divided driving area or the second divided driving area.

16. The electronic device of claim 1 , wherein the first area and the second area display an image.

17. The electronic device of claim 1 , wherein a hole where a portion of the display layer is omitted is defined in the first area of the display layer.

18. An electronic device, comprising:

a display layer including a display area and a non-display area adjacent to the display area, wherein the display area includes a first area having a first light transmittance and a second area having a second light transmittance that is lower than the first light transmittance; and

a sensor layer including a sensing area and a peripheral area adjacent to the sensing area,

wherein the sensor layer includes:

a plurality of first electrodes disposed in the sensing area and arranged along a first direction;

a plurality of first trace lines electrically connected to the plurality of first electrodes;

a plurality of second electrode groups disposed in the sensing area,

arranged along a second direction intersecting the first direction, and intersects with the plurality of first electrodes; and

a plurality of second trace lines electrically connected to the plurality of second electrode groups and overlapping the sensing area,

wherein the plurality of second electrode groups includes a first-second electrode and a second-second electrode spaced apart from the first-second electrode in the second direction,

wherein the plurality of second trace lines includes a plurality of first-second trace lines electrically connected to the first-second electrode and a second-second trace line electrically connected to the second-second electrode,

wherein a number of the plurality of first-second trace lines is greater than a number of the second-second trace lines, and

wherein the first-second electrode is divided by the first area into distinct sections that are connected by the first-second trace lines on a one-to-one correspondence.

19. The electronic device of claim 18 , wherein the first-second electrode includes a first sub-electrode and a second sub-electrode spaced apart from the first sub-electrode in the first direction, and

wherein the plurality of first-second trace lines are electrically connected to the first and second sub-electrodes in a one-to-one correspondence, respectively.

20. The electronic device of claim 18 , wherein the sensor layer includes a plurality of sensing units, and each of the plurality of sensing units corresponds to an area where one of the plurality of first electrodes and one of the plurality of second electrode groups intersect each other, and

wherein the plurality of sensing units include a first sensing unit having a first size and a second sensing unit having a second size that is greater than the first size.

21. The electronic device of claim 20 , wherein the second sensing unit includes a portion of the first-second electrode, and

wherein the first sensing unit includes a portion of the second-second electrode.

22. The electronic device of claim 20 , wherein the plurality of second electrode groups includes a plurality of first divided electrodes and a plurality of second divided electrodes spaced apart from the plurality of first divided electrodes in the first direction,

wherein the first-second electrode and the second-second electrode are included in the plurality of second divided electrodes,

wherein the first sensing unit includes a portion of the first-second electrode, and

wherein the second sensing unit includes a portion of one of the plurality of first divided electrodes.

23. An electronic device, comprising:

a display layer including a display area and a non-display area adjacent to the display area, wherein the display area includes a first area having a first light transmittance and a second area having a second light transmittance that is lower than the first light transmittance; and

a sensor layer including a sensing area, the sensing area including a first divided driving area, and a second divided driving area adjacent to the first divided driving area in a first direction and overlapping the first area,

wherein the sensor layer includes:

a plurality of first electrodes disposed in the sensing area and arranged along the first direction;

a plurality of first divided electrodes overlapping the first divided driving area,

arranged along a second direction intersecting the first direction, and intersecting with at least some of the first electrodes;

a plurality of second divided electrodes overlapping the second divided driving area, arranged along the second direction, and intersecting with at least some of the first electrodes;

a plurality of first divided trace lines electrically connected to the plurality of first divided electrodes; and

a plurality of second divided trace lines electrically connected to the plurality of second divided electrodes,

wherein a number of the plurality of second divided trace lines is greater than a number of the plurality of first divided trace lines,

wherein one of the plurality of second divided electrodes includes a first sub-electrode and a second sub-electrode spaced apart from the first sub-electrode with the first area interposed therebetween, and

wherein one of the plurality of second divided trace lines is connected to the first sub-electrode,

and another of the plurality of second divided trace lines is connected to the second sub-electrode.

24. The electronic device of claim 23 , wherein the sensor layer further includes a plurality of pads respectively connected to the one second divided trace line and the another second divided trace line.

25. The electronic device of claim 23 , wherein the sensor layer further includes a pad electrically connected to the one second divided trace line and the another second divided trace line.

26. The electronic device of claim 23 , wherein a shape of the plurality of first divided electrodes is different from a shape of the plurality of second divided electrodes.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 12, 2023
From: BOK, SEUNG-LYONG; KIM, KICHEOL
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 065850/0906 →
Priority Claims (1)
KR 10-2023-0016758 · Feb 8, 2023 · national
Continuity (1)
Related Publication 20240264709A1 · Aug 8, 2024
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