Electronic device comprising touch layer having opening

Patent metadata

Field	Value
Publication number	US-11442587-B2
Application number	US-201917284943-A
Country	US
Kind code	B2
Filing date	Oct 10, 2019
Priority date	Oct 16, 2018
Publication date	Sep 13, 2022
Grant date	Sep 13, 2022

Abstract

According to various embodiments of the present invention, an electronic device may comprise a touch layer in which a sensor may be disposed below a designated area, wherein the touch layer comprises: a first touch line including a first touch electrode and a second touch electrode arranged in a first direction in the designated area; a second touch line including a third touch electrode and a fourth touch electrode arranged in a second direction while crossing the first touch line in the designated area; a first opening formed in the area where the first touch line and the second touch line cross each other; and a first connection wiring disposed in the peripheral portion of the first opening and connecting the first touch electrode and the second touch electrode to each other. Various other embodiments are also possible.

First claim

The invention claimed is:

1. An electronic device comprising:
a touch layer; and
a sensor disposed under a designated region of the touch layer,
wherein the touch layer comprises:
a first touch line, comprising a first touch electrode and a second touch electrode, arranged in a first direction in the designated region,
a second touch line, comprising a third touch electrode and a fourth touch electrode, arranged in a second direction while crossing the first touch line in the designated region,
a first opening formed in the designated region,
a first connection wire provided in a surrounding part around the first opening and configured to connect the first touch electrode to the second touch electrode, and
a second connection wire provided in the surrounding part around the first opening and configured to connect the third touch electrode to the fourth touch electrode,

wherein the first connection wire comprises two parts having different thicknesses, and
wherein the second connection wire comprises two parts having different thicknesses.

2. The electronic device of claim 1 , further comprising a display panel layer which has a second opening formed in the designated region and comprises a non-active region formed in a surrounding part around the second opening,
wherein the second opening is formed to be at least partially aligned with the first opening when seen from above the touch layer.

3. The electronic device of claim 1 , wherein the first connection wire comprises at least one of a metal or a metal mesh.

4. The electronic device of claim 1 , further comprising a compensation pattern disposed in the surrounding part of the first opening and extending from the first connection wire, so as to compensate a touch sensitivity around the opening.

5. The electronic device of claim 4 ,
wherein the designated region comprises:
a display region, and
a non-active region surrounding the first opening,

wherein at least a part of the compensation pattern is formed in the non-active region, and
wherein a part of the compensation pattern extends to the display region.

6. The electronic device of claim 1 , wherein the first connection wire comprises:
a (1-1)th connection wire configured to connect a first point of the first touch electrode to a first point of the second touch electrode, and
a (1-2)th connection wire configured to connect a second point of the first touch electrode to a second point of the second touch electrode.

7. The electronic device of claim 1 , further comprising:
a switch configured to interconnect adjacent touch lines arranged in the first direction in the designated region; and
a touch sensor IC configured to control the switch,
wherein the first touch line comprises multiple touch lines arranged in the designated region,
wherein a pitch between the adjacent touch lines arranged in the first direction in the designated region is narrower than a pitch between adjacent touch lines arranged in the first direction outside the designated region, and
wherein the touch sensor IC is configured to close the switch when a user input is sensed in the designated region and to open the switch when a user input is sensed outside the designated region.

8. The electronic device of claim 1 ,
wherein the second touch line comprises a first part and a second part, which are electrically isolated from each other, and
wherein the electronic device further comprises:
a second connection wire electrically connected to the first part and formed outside the designated region,
a third connection wire electrically connected to the second part and formed outside the designated region, and
a touch sensor IC configured to output a signal to the first part via the second connection wire and to output a signal to the second part via the third connection wire.

9. The electronic device of claim 8 , wherein the touch sensor IC is configured to simultaneously or sequentially output a signal to the first part and the second part.

10. An electronic device comprising:
a display;
a sensor disposed under a designated region of the display; and
a display panel layer having a first opening formed in the designated region and comprising a non-active region formed in a surrounding part around the first opening; and a touch layer,
wherein the touch layer comprises:
a first touch line, comprising a first touch electrode and a second touch electrode, arranged in a first direction in the designated region,
a second touch line, comprising a third touch electrode and a fourth touch electrode, arranged in a second direction while crossing the first touch line in the designated region,
a second opening formed to be at least partially aligned with the first opening when seen from above the touch layer,
a first connection wire formed in a region around the second opening so as to be aligned with the non-active region and configured to connect the first touch electrode to the second touch electrode, and
a second connection wire formed in the region around the second opening so as to be aligned with the non-active region and configured to connect the third touch electrode to the fourth touch electrode,

wherein the first connection wire comprises two parts having different thicknesses, and
wherein the second connection wire comprises two parts having different thicknesses.

11. An electronic device comprising:
a touch layer; and
a sensor disposed under a designated region of the touch layer,
wherein the touch layer comprises:
a first touch line arranged in a first direction and comprising a first touch electrode and a second touch electrode positioned in the designated region,
a second touch line arranged in a second direction crossing the first direction and comprising a third touch electrode and a fourth touch electrode positioned in the designated region, and
an opening formed in the designated region and parallel to the sensor when seen from above the touch layer,
a first connection wire provided in a surrounding part around the opening and configured to connect the first touch electrode to the second touch electrode, and
a second connection wire provided in a surrounding part around the opening and configured to connect the third touch electrode to the fourth touch electrode,

wherein the first connection wire comprises two parts having different thicknesses,
wherein the second connection wire comprises two parts having different thicknesses, and
wherein at least one among the first touch electrode, the second touch electrode, the third touch electrode, and the fourth touch electrode, which are positioned in the designated region, has a smaller part per unit area, which is not used as an electrode, than a touch electrode positioned outside the designated region.

12. The electronic device of claim 11 , wherein the at least one among the first touch electrode, the second touch electrode, the third touch electrode, and the fourth touch electrode has a smaller area than the touch electrode positioned outside the designated region.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Song Aram
• Park Sangheon
• Heo Hoondo
• Kim Minuk
• Park Jongdae
• Yu Ilyong

Classifications

• G06F2203/04112

  Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material · CPC title

• G06F3/0446 Primary

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

• G06F3/0412 Primary

  Digitisers structurally integrated in a display · CPC title

• 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

• G06F3/04164

  Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads · CPC title