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US 12,638,940 B2Granted
Driving circuit and operating method thereof and controlling circuit
AssigneeNovatek Microelectronics Corp.
InventorWu Wei Lin
Life of this patent
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AssigneeNovatek Microelectronics Corp.
InventorWu Wei Lin
Estimating the term…
A driving circuit and an operating method thereof and a controlling circuit which are suitable for a knob apparatus are provided. The driving circuit includes multiple touch-sensing electrodes and a controlling circuit. The knob apparatus includes a knob and a touch panel. The knob is disposed on the touch panel. The touch-sensing electrodes and the controlling circuit are disposed in the touch panel. The touch-sensing electrodes are coupled to multiple pixel switches of the touch panel. The controlling circuit is coupled to the touch-sensing electrodes. During a touch period, the controlling circuit provides an offset voltage to a first touch-sensing electrode of the touch-sensing electrodes, such that a first pixel switch coupled to the first touch-sensing electrode maintains being turned off according to a touch-controlling signal and the offset voltage.
A driving circuit, for a knob apparatus, wherein the knob apparatus comprises a knob and a touch panel, the knob is disposed on the touch panel, wherein the driving circuit comprises:
An operating method of a driving circuit, for a knob apparatus, wherein the knob apparatus comprises a knob and a touch panel, the knob is disposed on the touch panel, wherein the operating method comprises:
A controlling circuit, to control a voltage level of a touch-sensing electrode disposed in a touch panel at different moments, wherein the touch-sensing electrode corresponds to a conductive electrode which is disposed in a bottom of a knob, when the knob is disposed in the touch panel, a user operates the touch panel through the knob, wherein the controlling circuit comprises:
Dependencies are inferred from the claim text.