Samsung Electronics Co., Ltd.

Sung-wan Hong

Sung-Soo Park

Byung-Hoon Kang

Gwan-hyung Kim

Hui-jun Shim

Se-hyun Han

Ju-wan Park

A touch panel is provided. The touch panel includes a channel electrode unit configured to include a plurality of first electrodes disposed in a first direction and a plurality of second electrodes disposed in a second direction intersecting with the first direction, and a controlling unit configured to apply a driving signal to the electrodes in the channel electrode unit in a unit of a plurality of electrodes, transmit the driving signal to a resonance circuit of a stylus pen approaching the touch panel through a capacitive coupling, and receive response signals generated from the resonance circuit of the stylus pen from each of the plurality of electrodes to determine a location of the stylus pen including the resonance circuit.

Touch panel and coordinate measuring system having the same

A touch panel is provided. The touch panel includes a receiver configured to receive response signals from a plurality of objects, and a controller configured to identify positions of the plurality of objects based on different frequencies emitted from each of the plurality of objects in response to the response signals being simultaneously received through the receiver.

Stylus pen, touch panel, and coordinate indicating system having the same

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Seongnam-si, South Korea

Sung-wan Hong