Electronic device
An electronic device includes a display panel, an input sensor, and a flexible circuit film that includes a sensor controller that drives the input sensor, and an oscillation circuit. The oscillation circuit includes a quartz oscillator connected to the sensor controller, a first electrode connected to a first terminal of the quartz oscillator, and a second electrode disposed in a different layer from the first electrode and that overlaps the first electrode. The first electrode and the second electrode constitute a first capacitor.
1 . An electronic device, comprising:
a display panel that displays an image;
an input sensor disposed on the display panel and that senses an input from an input device; and
a flexible circuit film that includes a sensor controller that drives the input sensor, and an oscillation circuit connected to the sensor controller and that generates a reference waveform that senses the input from the input device,
wherein the oscillation circuit includes:
a quartz oscillator that is connected to the sensor controller and that includes a first terminal and a second terminal;
a first electrode connected to the first terminal of the quartz oscillator; and
a second electrode disposed in a different layer from the first electrode and that overlaps the first electrode, and
wherein the first electrode and the second electrode constitute a first capacitor.
2 . The electronic device of claim 1 , wherein the oscillation circuit includes:
a third electrode connected to the second terminal of the quartz oscillator; and
a fourth electrode disposed in a different layer from the third electrode and that overlaps the third electrode, and
wherein the third electrode and the fourth electrode constitute a second capacitor.
3 . The electronic device of claim 2 , wherein the oscillation circuit further includes a dielectric interposed between the first electrode and the second electrode, and between the third electrode and the fourth electrode.
4 . The electronic device of claim 2 , wherein each of the second electrode and the fourth electrode are connected to ground.
5 . The electronic device of claim 2 , wherein capacitance values of each of the first capacitor and the second capacitor are in a range from 1 pF to 50 pF.
6 . The electronic device of claim 1 , wherein the first terminal of the quartz oscillator is an input terminal that receives an input signal from the sensor controller.
7 . The electronic device of claim 1 , wherein the second terminal of the quartz oscillator is an output terminal that provides an output signal to the sensor controller.
8 . An electronic device, comprising:
a display panel that displays an image;
an input sensor disposed on the display panel and that senses an input from an input device; and
a flexible circuit film that includes a sensor controller that drives the input sensor, and an oscillation circuit connected to the sensor controller and that generates a reference waveform that senses the input from the input device,
wherein the oscillation circuit includes:
a quartz oscillator connected to the sensor controller and that includes a first terminal and a second terminal;
a (1-1)-th electrode connected to the first terminal of the quartz oscillator; and
a (1-2)-th electrode disposed in a same layer as the (1-1)-th electrode and spaced apart from the (1-1)-th electrode on a first plane perpendicular to a first direction, and
wherein the (1-1)-th electrode and (1-2)-th electrode overlap each other on a second plane parallel to the first direction and constitute a first capacitor.
9 . The electronic device of claim 8 ,
wherein the (1-1)-th electrode includes a plurality of (1-1)-th branch electrodes,
wherein the (1-2)-th electrode includes a plurality of (1-2)-th branch electrodes, and
wherein the plurality of (1-1)-th branch electrodes and the plurality of (1-2)-th branch electrodes are spaced apart from each other and are alternately arranged on the first plane.
10 . The electronic device of claim 9 , wherein the plurality of (1-1)-th branch electrodes and the plurality of (1-2)-th branch electrodes overlap each other on the second plane.
11 . The electronic device of claim 8 , wherein the oscillation circuit further includes:
a (2-1)-th electrode connected to the second terminal of the quartz oscillator; and
a (2-2)-th electrode disposed in a sane layer as the (2-1)-th electrode and spaced apart from the (2-1)-th electrode, when viewed in a plan view, and
wherein the (2-1)-th electrode and the (2-2)-th electrode constitute a second capacitor.
12 . The electronic device of claim 11 , wherein each of the (1-2)-th electrode and the (2-2)-th electrode are connected to ground.
13 . The electronic device of claim 11 , wherein the oscillation circuit further includes a dielectric interposed between the (1-1)-th electrode and the (1-2)-th electrode, and between the (2-1)-th electrode and the (2-2)-th electrode.
14 . The electronic device of claim 11 , wherein capacitance values of each of the first capacitor and the second capacitor are in a range from 1 pF to 50 pF.
15 . The electronic device of claim 8 , wherein the first terminal of the quartz oscillator is an input terminal that receives an input signal from the sensor controller.
16 . The electronic device of claim 8 , wherein the second terminal of the quartz oscillator is an output terminal that provides an output signal to the sensor controller.
17 . An electronic device, comprising:
a display panel that displays an image;
an input sensor disposed on the display panel and that senses an input from an input device;
a sensor controller that drives the input sensor;
a quartz oscillator connected to the sensor controller and that includes an input terminal and an output terminal;
a first capacitor connected to the input terminal of the quartz oscillator;
a second capacitor connected to the output terminal of the quartz oscillator; and
a ground,
wherein the first capacitor includes a first electrode connected to the input terminal and a second electrode connected to the ground, and
wherein the second capacitor includes a third electrode connected to the output terminal and a fourth electrode connected to the ground.
18 . The electronic device of claim 17 ,
wherein the first electrode and the second electrode are disposed in mutually different layers and overlap in a plan view, and
wherein the third electrode and the fourth electrode are disposed in mutually different layers and overlap each other when viewed in in a plan view.
19 . The electronic device of claim 17 ,
wherein the first electrode and the second electrode are disposed in a same layer and are spaced apart from each other when viewed in a plan view, and
wherein the third electrode and the fourth electrode are disposed in a same layer, and are spaced apart from each other when viewed in a plan view.
20 . The electronic device of claim 17 , wherein values of each of the first capacitor and the second capacitor are in a range from 1 pF to 50 pF.