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US 9,001,088 B2Granted
Input device
AssigneeSamsung Electronics Co., Ltd.
InventorsYu-Sheop Lee, Joo-Hoon Lee, Sun-Tae Jung
Life of this patent
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Abstract
A magnetic field shielding layer that does not affect an operation of a geo-magnetic sensor in a pointing input device of a touch screen type using an electromagnetic pen is provided. A magnetic field shielding layer is composed of magnetic metal powder. The magnetic field shielding layer is formed directly on the pointing input device without a need for a separate adhesive layer.
Claims14
An input device comprising:
- a display unit for outputting a display screen;
- an electromagnetic sensing unit disposed under the display unit to sense a magnetic field generated by an electromagnetic pen upon approaching or contacting a top surface of the display unit;
- a magnetic field partial shielding layer disposed under the electromagnetic sensing unit, in which magnetic powder is scattered;
- and
- a geo-magnetic sensor for sensing Earth's magnetic field passing through the magnetic field partial shielding layer.
2 more elements
Dependencies are inferred from the claim text.