Electronic device and interface device including the same

An interface device comprising:

• an electronic device comprising:
• a display layer;
• a sensor layer on the display layer;
• and
• a sensor controller configured to control the sensor layer;
• and
• an input device configured to communicate with the electronic device,
• wherein the sensor layer is configured to operate in a plurality of frames, detect first coordinates by a touch, and detect second coordinates by the input device,
• wherein each of the plurality of frames sequentially comprises an uplink signal, a downlink signal, and a sensing signal,
• wherein the sensor layer is configured to provide the uplink signal to the input device,
• wherein the input device is configured to provide the downlink signal to the sensor layer,
• wherein the sensing signal comprises information to detect the touch, and
• wherein, when the touch is detected, the sensor controller is configured to:
• output the first coordinates based on the sensing signal of at least one frame in which the touch is detected from among the plurality of frames;
• and
• correct the second coordinates based on the first coordinates during a period of at least two frames including the at least one frame.