CPC G06F 3/04162 (2019.05) [G06F 3/03545 (2013.01); G06F 3/0383 (2013.01); G06F 3/0421 (2013.01); G06F 3/0488 (2013.01); G06F 2203/04106 (2013.01)] | 20 Claims |
1. A smart pen, comprising:
a body portion;
a pen tip portion disposed on one end of the body portion;
a code detector detecting shape data by applying light to the pen tip portion and receiving light reflected from a display panel and the pen tip portion though a light receiving portion thereof; and
a code processor generating coordinate data from the detected shape data and transmitting the generated coordinate data to a processor,
wherein the pen tip portion includes a reflective surface and the light reflected from the display panel has two paths to the light receiving portion including a first path that is reflected from the reflective surface before arriving at the light receiving portion and a second path that travels directly from the display panel to the light receiving portion.
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