Samsung Electronics Co., Ltd.

Gyounghwan Park

Eunseok Hong

Shinho Kim

Wonseob Kim

Cheolyoon Chung

According to various embodiments, a printed circuit board may include: a first wiring layer including at least one first signal line and at least one first dummy line; and a second wiring layer arranged on the first wiring layer and including at least one second signal line and at least one second dummy line, wherein when the printed circuit board is viewed from above, the at least one first signal line may be arranged to overlap, at least in part, the at least one second dummy line, and the at least one second signal line may be arranged to overlap, at least in part, the at least one first dummy line.

Printed circuit board and electronic device including same

A pen input device having malfunction prevention function and method of preventing malfunction thereof are disclosed. The pen input device includes: a housing having a bar form and having one end relatively narrowly opened to form a housing space; a resonant circuit housed within the housing; a tip that protrudes from an open end of the housing to the outside, the tip comprising a dielectric material and being configured to be movable within a predetermined range in a direction of a longitudinal axis of the housing, the tip being further configured to be self-centering; and a ground shielding portion formed in a portion of the housing in which electromagnetic induction occurs, the ground shielding portion not including the tip.

Growing community of inventors

Seoul, South Korea

Gyounghwan Park