Electronic device

Patent metadata

Field	Value
Publication number	US-12493376-B2
Application number	US-202418797193-A
Country	US
Kind code	B2
Filing date	Aug 7, 2024
Priority date	Aug 24, 2023
Publication date	Dec 9, 2025
Grant date	Dec 9, 2025

Abstract

An electronic device including a display panel including a plurality of light emitting elements, and an input sensor on the display panel. The input sensor includes a transmission electrode including a plurality of first transmission patterns arranged in a first direction, and a reception electrode crossing the transmission electrode and including a plurality of first reception patterns arranged in a second direction crossing the first direction. Each of the first transmission patterns extends in the first direction and has a zigzag shape, and each of the first reception patterns extends in the second direction and has a zigzag shape.

First claim

What is claimed is:

1 . An electronic device comprising:
a display panel comprising a plurality of light emitting elements; and an input sensor on the display panel and comprises:
a transmission electrode comprising a plurality of first transmission patterns arranged in a first direction and each having a zigzag shape, and a plurality of second transmission patterns arranged in the first direction and spaced apart from the first transmission patterns in a second direction crossing the first direction; and
a reception electrode crossing the transmission electrode and comprising a plurality of first reception patterns arranged in the second direction, each of the first reception patterns extending having a zigzag shape,
wherein one of the plurality of first reception patterns crosses one of the first transmission patterns at a first cross area and crosses an adjacent one of the second transmission patterns at a second cross area separated from the first cross area.

2 . The electronic device of claim 1 , wherein the transmission electrode further comprises:
a first connection pattern configured to electrically connect at least one of the first transmission patterns and at least one of the second transmission patterns to each other, and wherein each of the second transmission patterns has a zigzag shape.

3 . The electronic device of claim 2 , wherein the reception electrode further comprises:
a plurality of second reception patterns arranged in the second direction and spaced apart from the first reception patterns in the first direction; and a second connection pattern configured to electrically connect at least one of the first reception patterns and at least one of the second reception patterns to each other, and wherein each of the second reception patterns extends in the second direction and has a zigzag shape.

4 . The electronic device of claim 3 , wherein the electronic device further comprises a plurality of first connection patterns and a plurality of second connection patterns.

5 . The electronic device of claim 4 , wherein the input sensor further comprises dummy electrodes arranged between the transmission electrode and the reception electrode,
wherein at least one of the dummy electrodes is between two of the first connection patterns that are adjacent to each other in the first direction, and wherein at least one of the dummy electrodes is between two of the second connection patterns that are adjacent to each other in the second direction.

6 . The electronic device of claim 3 , wherein a width of the first connection pattern is different from each of the widths of the first transmission patterns and the second transmission patterns, and
a width of the second connection pattern is different from each of the widths of the first reception patterns and the second reception patterns.

7 . The electronic device of claim 6 , wherein the width of the first connection pattern is smaller than each of the widths of the first transmission patterns and the second transmission patterns, and
the width of the second connection pattern is smaller than each of the widths of the first reception patterns and the second reception patterns.

8 . The electronic device of claim 7 , wherein the width of the first connection pattern is the same as the width of the second connection pattern.

9 . The electronic device of claim 3 , wherein the transmission electrode further comprises:
a plurality of first bridge patterns configured to electrically connect the first transmission patterns; and a plurality of second bridge patterns configured to electrically connect the second transmission patterns.

10 . The electronic device of claim 9 , wherein the first bridge patterns and the second bridge patterns are alternately arranged in the first direction.

11 . The electronic device of claim 10 , wherein the reception electrode further comprises:
a plurality of third bridge patterns configured to electrically connect the first reception patterns; and a plurality of fourth bridge patterns configured to electrically connect the second reception patterns.

12 . The electronic device of claim 11 , wherein the third bridge patterns and the fourth bridge patterns are alternately arranged in the second direction.

13 . The electronic device of claim 11 , wherein the first bridge patterns and the second bridge patterns are on a different layer from those of the first transmission patterns and the second transmission patterns, and
wherein the third bridge patterns and the fourth bridge patterns are on a different layer from those of the first reception patterns and the second reception patterns.

14 . The electronic device of claim 3 , wherein the first connection pattern has a zigzag shape extending in the second direction, and
wherein the second connection pattern has a zigzag shape extending in the first direction.

15 . The electronic device of claim 1 , wherein the input sensor further comprises:
dummy electrodes arranged between the transmission electrode and the reception electrode and electrically insulated from the transmission electrode and the reception electrode.

16 . The electronic device of claim 15 , wherein each of the dummy electrodes comprises a plurality of dummy patterns electrically insulated from each other.

17 . The electronic device of claim 15 , wherein a side surface of each of the dummy electrodes has a zigzag shape to correspond to shapes of the first transmission patterns and the first reception patterns adjacent to each of the dummy electrodes.

18 . The electronic device of claim 15 , wherein the input sensor further comprises buffer electrodes surrounding the dummy electrodes.

19 . The electronic device of claim 18 , wherein the buffer electrodes are electrically insulated from the dummy electrodes, the transmission electrode, and the reception electrode.

20 . The electronic device of claim 18 , wherein the buffer electrodes comprise a plurality of buffer patterns spaced apart from each other.

21 . The electronic device of claim 18 , wherein a width of each of the dummy electrodes is greater than a width of each of the buffer electrodes.

22 . The electronic device of claim 1 , wherein at least one of the light emitting elements arranged in the first direction overlaps side surfaces of the first transmission patterns on a plane.

23 . The electronic device of claim 1 , wherein a plurality of cross areas in which the first transmission patterns and the first reception patterns cross each other are defined in the input sensor, and
wherein each of the cross areas comprises a plurality of boundary areas in which one surfaces of the first transmission patterns and one surfaces of the first reception patterns face each other.

24 . The electronic device of claim 1 , wherein the electronic device further comprises a plurality of transmission electrodes arranged in the second direction, and
a plurality of reception electrodes arranged in the first direction.

25 . The electronic device of claim 1 , wherein the input sensor is configured to sense a first input in a first mode and to sense a second input in a second mode, and
the electronic device further comprises an input device configured to provide the second input to the input sensor.

26 . An electronic device comprising:
a display panel comprising a plurality of light emittin

Assignees

• Samsung Display Co Ltd

Inventors

• Jeong Hwan-Hee
• Kim Deokjung
• Lee Won-Il

Classifications

• G06F2203/04111

  Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate · CPC title

• G06F3/0412 Primary

  Digitisers structurally integrated in a display · CPC title

• H10K59/131

  Interconnections, e.g. wiring lines or terminals · CPC title

• G06F3/0448

  Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality · CPC title

• G06F3/0446

  using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes · CPC title