Abstract: The present disclosure relates to an input system, and more particularly, to an electronic device capable of sensing a stylus pen together with an object such as a finger that is in proximity or in contact with the outside, and an input system including a stylus pen including a ferrite core for a stylus pen capable of improving the magnitude of a pen signal received by the electronic device.

Abstract: A pen and touch input system according to an embodiment of the present invention includes a touch input device including a sensor unit and a control unit for controlling the sensor unit and a stylus pen interacting with the touch input device.

Abstract: A pen and touch input system according to an embodiment of the present invention includes a touch input device including a sensor unit and a control unit for controlling the sensor unit and a stylus pen interacting with the touch input device.

Abstract: A stylus pen may be optimized to a housing having a specific shape and may improve a magnitude of a pen signal. A ferrite core is mounted in a stylus pen and has a through-hole formed along a longitudinal direction of the stylus pen. The ferrite core has a first cross-sectional shape in a first vertical direction perpendicular to the longitudinal direction and a second cross-sectional shape in a second vertical direction perpendicular to both the longitudinal direction and the first vertical direction, the first cross-sectional shape is different from the second cross-sectional shape, the ferrite core includes a curved portion disposed at one end of the ferrite core, and the curved portion includes at least two curved surfaces that are curved from one side surface of one end of the ferrite core to a portion adjacent to the through-hole of the ferrite core in a direction toward the through-hole.

Abstract: Disclosed is a stylus pen and a method for manufacturing the same, and to a stylus pen that is miniaturized by using an inner empty space thereof to reduce an inner volume. A stylus pen in which a resonance frequency of a resonance circuit may be changed according to a movement of a core. A stylus pen includes a housing, a core having one end disposed outside the housing and the rest portion disposed in the housing and moved along a longitudinal direction by an external force applied to the one end, an inductor unit disposed in the housing, a capacitor unit disposed in the housing to form a resonance circuit with the inductor unit, a movable bracket disposed in the housing and disposed at the other end of the core to operate in conjunction with the core, and a magnetic body disposed in the movable bracket.

Abstract: According to the present disclosure, a stylus pen includes: a housing; a core having one end disposed outside the housing and the rest portion disposed in the housing and moved along a longitudinal direction by external force applied to the one end; an inductor unit including a ferrite core disposed in the housing and having a through-hole through which the core passes and a coil wound around an outer surface of the ferrite core; a capacitor unit electrically connected to the inductor unit to form a resonance circuit; and a plurality of sealing members configured to block a plurality of moisture ingress paths that pass through a core opening of the housing.

Abstract: The present disclosure relates to a ferrite core and a stylus pen including the same, and more particularly, to a ferrite core capable of improving an effect of magnetization caused by an external magnetic body and a stylus pen including the same. The ferrite core according to an embodiment of the present disclosure, which is mounted in the stylus pen, includes 60 to 80 wt % of iron (Fe), 15 to 30 wt % of manganese (Mn), and 3 to 20 wt % of zinc (Zn).

Abstract: A pen and touch input system according to an embodiment of the present invention includes a touch input device including a sensor unit and a control unit for controlling the sensor unit and a stylus pen interacting with the touch input device.

Abstract: A stylus pen according to an exemplary embodiment includes: an inductor unit; and a capacitor unit including a plurality of first capacitors connected to the inductor unit in parallel, a connection member including a first signal line connected to one end of each of the plurality of first capacitors, a movable member including a second signal line connected to the first signal line when contacting the connection member, a conductive elastic member connected to the second signal line, and a second capacitor connected between the elastic member and the other end of each of the plurality of first capacitors.

Abstract: According to an example embodiment, a stylus pen may include an inductor including a core body, ferrite core, a coil wound on an outer surface of the ferrite core, and a magnetic body spaced apart from the ferrite core by pressure applied to the core body.

Abstract: A pen and touch input system according to an embodiment of the present invention includes a touch input device including a sensor unit and a control unit for controlling the sensor unit and a stylus pen interacting with the touch input device.

Abstract: Disclosed is a stylus pen including: a ferrite core; and a coil including a plurality of metal wires twisted to have a number of twist turns per unit length of at least n, and wound on an outer surface of the ferrite core.

Abstract: According to an example embodiment, a stylus pen may include an inductor including a core body, ferrite core, a coil wound on an outer surface of the ferrite core, and a magnetic body spaced apart from the ferrite core by pressure applied to the core body.

Abstract: A pen and touch input system according to an embodiment of the present invention includes a touch input device including a sensor unit and a control unit for controlling the sensor unit and a stylus pen interacting with the touch input device.

Abstract: A stylus pen may be optimized to a housing having a specific shape and may improve a magnitude of a pen signal. A ferrite core is mounted in a stylus pen and has a through-hole formed along a longitudinal direction of the stylus pen. The ferrite core has a first cross-sectional shape in a first vertical direction perpendicular to the longitudinal direction and a second cross-sectional shape in a second vertical direction perpendicular to both the longitudinal direction and the first vertical direction, the first cross-sectional shape is different from the second cross-sectional shape, the ferrite core includes a curved portion disposed at one end of the ferrite core, and the curved portion includes at least two curved surfaces that are curved from one side surface of one end of the ferrite core to a portion adjacent to the through-hole of the ferrite core in a direction toward the through-hole.

Abstract: A pen and touch input system according to an embodiment of the present invention includes a touch input device including a sensor unit and a control unit for controlling the sensor unit and a stylus pen interacting with the touch input device.

Abstract: A pen and touch input system according to an embodiment of the present invention includes a touch input device including a sensor unit and a control unit for controlling the sensor unit and a stylus pen interacting with the touch input device.

Abstract: A pen and touch input system according to an embodiment of the present invention includes a touch input device including a sensor unit and a control unit for controlling the sensor unit and a stylus pen interacting with the touch input device.

Abstract: A pen and touch input system according to an embodiment of the present invention includes a touch input device including a sensor unit and a control unit for controlling the sensor unit and a stylus pen interacting with the touch input device.

Abstract: According to an example embodiment, a stylus pen may include an inductor including a core body, ferrite core, a coil wound on an outer surface of the ferrite core, and a magnetic body spaced apart from the ferrite core by pressure applied to the core body.