Electronic device
An electronic device includes a base layer, a light emitting element, an input sensor, a data line and a charging electrode. The charging electrode is disposed below the light-emitting element and includes a plurality of first line portions, each of which crosses the data line in a plan view. The charging electrode generates an induced magnetic field when a first one of the plurality of first line portions receives a first driving signal and a second one of the plurality of line portions receives a second driving signal whose is phase is delayed from the first driving signal.
1 . An electronic device comprising:
a base layer;
a light-emitting element disposed above the base layer;
an input sensor disposed above the light-emitting element;
a data line disposed above the base layer; and
a charging electrode disposed below the light-emitting element and including a plurality of first line portions, wherein each of the first line portions overlap the data line in a plan view, wherein
the charging electrode generates an induced magnetic field when a first one of the plurality of first line portions receives a first driving signal and a second and other one of the plurality of first line portions receives a second driving signal whose phase is delayed from the first driving signal, and
the second driving signal applied to the second of the plurality of first line portions produces a parasitic capacitance with the data line that offsets a parasitic capacitance produced by the first driving signal applied to the first of the plurality of first line portions.
2 . The electronic device of claim 1 , wherein
the second driving signal is a reverse phase signal of the first driving signal.
3 . The electronic device of claim 1 , wherein:
the charging electrode further comprises a second line portion connecting the plurality of first line portions to each other and extending in a direction crossing the plurality of first line portions; and
the plurality of first line portions comprise (1-1)-th line portions defining a plurality of charging channels that receive one of the first driving signal and the second driving signal.
4 . The electronic device of claim 3 , wherein a first one of the plurality of charging channels receives the first driving signal and a second one of the plurality of charging channels receives the second driving signal.
5 . The electronic device of claim 1 , wherein the charging electrode comprises a first charging electrode and a second charging electrode which are electrically separated from each other.
6 . The electronic device of claim 5 , wherein:
the plurality of first line portions extend in a first direction; and
some of the plurality of first line portions of the first charging electrode and some of the plurality of first line portions of the second charging electrode are alternately disposed in a second direction crossing the first direction.
7 . The electronic device of claim 1 , wherein:
the light-emitting element comprises a first light-emitting element, a second light-emitting element, and a third light-emitting element arranged in a first direction;
the data line extends in a second direction perpendicular to the first direction and comprises a first data line, a second data line, and a third data line respectively corresponding to the first light-emitting element, the second light-emitting element, and the third light-emitting element; and
the plurality of first line portions extend in the first direction or in a cross direction crossing the first direction and the second direction.
8 . The electronic device of claim 1 , wherein:
the base layer comprises a plurality of pixel regions arranged in a n rows and m columns, wherein n and m are natural numbers greater than or equal to 2;
the light-emitting element is disposed to correspond to each of the plurality of pixel regions; and
the plurality of first line portions are disposed in a one-to-one correspondence with the n rows.
9 . The electronic device of claim 1 , wherein:
the base layer comprises a first resin layer and a second resin layer disposed on the first resin layer; and
the charging electrode is disposed between the first resin layer and the second resin layer.
10 . The electrode device of claim 1 , wherein the charging electrode is disposed on a same layer as the data line.
11 . The electronic device of claim 1 , wherein:
the light-emitting element comprises a first electrode, a light-emitting layer disposed on the first electrode, and a second electrode disposed on the light-emitting layer; and
the charging electrode is disposed below the second electrode.
12 . The electronic device of claim 1 , wherein the input sensor comprises a first electrode and a second electrode crossing the first electrode.
13 . The electronic device of claim 1 ,
wherein the input sensor comprises a third electrode and a fourth electrode crossing the third electrode,
wherein each of the third electrode and the fourth electrode generates an induced current by a magnetic field generated by an input device.
14 . The electronic device of claim 13 , wherein
the input device comprises an RLC resonance circuit which is charged by the induced magnetic field generated by the charging electrode, and
the induced magnetic field generated by the charging electrode generates a current in the input device that emits a magnetic field from the input device that induces a current in the third electrode and the fourth electrode of the input sensor that is transmitted to a sensor driver to calculate coordinate information of an input.
15 . An electronic device comprising:
a base layer;
a light-emitting element disposed above the base layer;
an input sensor disposed above the light-emitting element;
a data line disposed above the base layer; and
a charging electrode disposed below the light-emitting element and including a plurality of first line portions, wherein each of the first line portions cross the data line in a plan view, wherein
the charging electrode generates an induced magnetic field when a first one of the plurality of first line portions receives a first driving signal and a second other one of the plurality of first line portions receives a second driving signal whose phase is delayed from the first driving signal,
the plurality of first line portions further comprise (1-2)-th line portions defining a plurality of non-charging channels that do not receive the first driving signal and the second driving signal, and
each of the plurality of non-charging channels is disposed between two adjacent charging channels among the plurality of charging channels.
16 . An electronic device comprising:
a base layer comprising a plurality of pixel regions comprising a first pixel region and a second pixel region which are disposed in a first direction;
a plurality of light-emitting elements comprising a first light-emitting element corresponding to the first pixel region and a second light-emitting element corresponding to the second pixel region and disposed above the base layer;
a plurality of data lines comprising a first data line extending in a second direction crossing the first direction and corresponding to the first pixel region and a second data line extending in the second direction and corresponding to the second pixel region;
a charging electrode disposed below the first light-emitting element and the second light-emitting element and comprising a plurality of first line portions extending in the second direction; and
an offset electrode disposed below the first light-emitting element and the second light-emitting element and including a plurality of offset lines extending in the second direction,
wherein:
the plurality of first line portions comprise a (1-1)-th line portion disposed on one side of the first data line and a (1-2)-th line portion disposed on one side of the second data line in the first direction; and
the plurality of offset lines comprise a first offset line disposed on the other side of the first data line and a second offset line disposed on the other side of the second data line in the first direction,
wherein:
the first data line is disposed between the (1-1)-th line portion and the first offset line in the first direction; and
the second data line is disposed between the (1-2)-th line portion and the second offset line in the first direction,
wherein the charging electrode generates an induced magnetic field when the (1-1)-th line portion receives a first driving signal and the (1-2)-th line portion receives a second driving signal whose phase delayed from the first driving signal; and
an amplitude of a composite signal of the first driving signal and a first offset signal is less than an amplitude of the first driving signal when the (1-1)-th line portion receives the first driving signal and the first offset line receives the first offset signal.
17 . The electronic device of claim 16 , wherein the second driving signal is a reverse phase signal of the first driving signal.
18 . The electronic device of claim 16 , wherein the first offset signal is a reverse phase signal of the first driving signal.
19 . The electronic device of claim 16 , wherein:
an amplitude of a composite signal of the second driving signal and a second offset signal is less than an amplitude of the second driving signal when the (1-2)-th line portion receives the second driving signal and the second offset line receives the second offset signal.
20 . The electronic device of claim 16 , wherein, in the first direction, a first distance between the first data line and the (1-1)-th line portion and a second distance between the first data line and the first offset line are substantially equal to each other.
21 . The electronic device of claim 16 , wherein:
in the first direction, a first distance between the first data line and the (1-1)-th line portion is different from a second distance between the first data line and the first offset line; and
when the second distance is greater than the first distance, a maximum amplitude of the first offset signal is greater than a maximum amplitude of the first driving signal.
22 . The electronic device of claim 21 , wherein a parasitic capacitance between the first data line and the (1-1)-th line portion multiplied by an amplitude of the first driving signal is equal to a parasitic capacitance between the first data line and the first offset line multiplied by an amplitude of the first offset signal.
23 . The electronic device of claim 16 , wherein the charging electrode further comprises a second line portion connecting a plurality of first line portions to each other.
24 . The electronic device of claim 16 , wherein:
some of the plurality of pixel regions are disposed between the first pixel region and the second pixel region in the first direction; and
some of the plurality of first line portions are disposed between the (1-1)-th line portion and the (1-2)-th line portion.
25 . The electronic device of claim 16 , further comprising a sensor driver electrically connected to the plurality of offset lines,
wherein the sensor driver comprises:
a first multiplexer circuit electrically connected to the plurality of offset lines and selectively providing a first input signal to the plurality of offset lines; and
a second multiplexer circuit electrically connected to the plurality of offset lines and selectively providing a second input signal to the plurality of offset lines.
26 . The electronic device of claim 25 , wherein:
each of the first multiplexer circuit and the second multiplexer circuit is further electrically connected to the plurality of first line portions; and
when the second driving signal and the first offset signal are the reverse phase signals of the first driving signal, the first multiplexer circuit provides the first driving signal as the first input signal to the (1-1)-th line portion, the second multiplexer circuit provides the second driving signal as the second input signal to the (1-2)-th line portion, and the second multiplexer circuit provides the second driving signal as the first offset signal to the first offset line.
27 . The electronic device of claim 26 , wherein the plurality of offset lines define a plurality of offset channels,
wherein:
offset lines of a first offset channel corresponding to the first charging channel among the plurality of offset channels include the first offset line and receive the first offset signal; and
offset lines of a second offset channel corresponding to the second charging channel among the plurality of offset channels include the second offset line and receive a second offset signal different from the first offset signal.
28 . The electronic device of claim 26 , wherein:
each of the first light-emitting element and the second light-emitting element comprises a first electrode, a light-emitting layer disposed on the first electrode, and a second electrode disposed on the light-emitting layer;
the second electrode of the first light-emitting element and the second electrode of the second light-emitting element have an integral shape; and
the charging electrode is disposed below the second electrode of the first light-emitting electrode and the second electrode of the second light-emitting element, which have the integral shape.
29 . The electronic device of claim 16 , wherein:
at least some of the plurality of first line portions define a plurality of charging channels;
first line portions of a first charging channel among the plurality of charging channels comprise the (1-1)-th line portion and receive the first driving signal; and
first line portions of a second charging channel among the plurality of charging channels comprise the (1-2)-th line portion and receive the second driving signal.
30 . The electronic device of claim 29 , wherein:
some of the plurality of first line portions define a plurality of non-charging channels; and
each of the plurality of non-charging channels is disposed between two adjacent charging channels among the plurality of charging channels.