Touch screen device
AssigneeLG Display Co., Ltd.
InventorsSungsu Han, SungChul Kim, SangHyuck Bae, Suyun Ju, DoYoung Jung
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Abstract
Disclosed is a touch screen device for accurately detecting a touch by using a touch pen without having a separate sensor provided in a touch panel. The touch screen device includes a touch screen including a plurality of touch electrodes, a touch driving circuit applying a touch electrode driving signal to the plurality of touch electrodes, and a touch pen receiving the touch electrode driving signal applied to the plurality of touch electrodes and transmitting a pen output signal, synchronized with the received touch electrode driving signal, to the touch screen.
Claims5
A touch screen device comprising:
- a touch screen including a plurality of touch electrodes;
- a touch driving circuit applying a touch electrode driving signal to the plurality of touch electrodes;
- and
- a touch pen receiving the touch electrode driving signal applied to the plurality of touch electrodes and transmitting a pen output signal, synchronized with the received touch electrode driving signal, to the touch screen,
- wherein the touch electrode driving signal comprises a first touch electrode driving signal including N number of pulses and a second touch electrode driving signal including M number of pulses,
- wherein N is less than M,
- wherein the first touch electrode driving signal determines whether there is a touch which is performed for a setting unit, and
- wherein the second touch electrode driving signal are applied to the plurality of touch electrodes through a plurality of multiplexers.
Dependencies are inferred from the claim text.