Abstract:
A touch panel is provided. The touch panel includes a channel electrode unit configured to include a plurality of first electrodes disposed in a first direction and a plurality of second electrodes disposed in a second direction intersecting with the first direction, and a controlling unit configured to apply a driving signal to the electrodes in the channel electrode unit in a unit of a plurality of electrodes, transmit the driving signal to a resonance circuit of a stylus pen approaching the touch panel through a capacitive coupling, and receive response signals generated from the resonance circuit of the stylus pen from each of the plurality of electrodes to determine a location of the stylus pen including the resonance circuit.
Abstract:
Methods of growing nitride semiconductor layers including forming nitride semiconductor dots on a substrate and growing a nitride semiconductor layer on the nitride semiconductor dots. The nitride semiconductor layer may be separated from the substrate to be used as a nitride semiconductor substrate.
Abstract:
A method of manufacturing a large area gallium nitride (GaN) substrate includes forming a buffer layer on a silicon substrate, forming an insulation layer pattern on a rim of a top surface of the buffer layer, growing a GaN layer on the buffer layer, and removing the insulation layer pattern and a portion of the GaN layer and the silicon substrate.
Abstract:
A coordinate measuring apparatus and a method of controlling the same are provided. The coordinate measuring apparatus includes a touch panel comprising a plurality of electrodes, a driver configured to generate a driving signal and to provide the driving signal to the touch panel, a receiver configured to receive from the touch panel a first receiving signal and a second receiving signal corresponding to a signal transmitted from a coordinate indicating apparatus, and a processor configured to identify a form of a user's grip on the coordinate indicating apparatus based on the first receiving signal, and identify an activation region and a deactivation region of the touch panel based on the identified form of the user's grip and the second receiving signal.
Abstract:
A coordinate measurement device and method for hover sensing are disclosed. According to the present invention, the coordinate measurement device comprises: a channel electrode unit including a plurality of electrodes, wherein a capacitance of at least one of the plurality of electrodes variably changes by the approach of a contact object; a driving unit for applying a positive voltage to a first electrode group among the plurality of electrodes and applying a negative voltage to a second electrode group among the plurality of electrodes; a reception unit for receiving reception signals from a plurality of electrodes in the first electrode group and a plurality of electrodes in the second electrode group, respectively; and a processor for determining the position of the contact object on the basis of the received signals. Therefore, the coordinate measurement device can detect an accurate position of the contact object approaching the coordinate measurement device, through a conventional sensing element and circuit process.
Abstract:
A method of detecting an input of an input marking apparatus includes generating and outputting a number signal to be written to the input marking apparatus, detecting the input marking apparatus in which the number signal is written, by detecting a response signal output from the input marking apparatus, and detecting a position of the input of the input marking apparatus of which the response signal is detected.
Abstract:
A coordinate measuring apparatus and a method of controlling the same are provided. The coordinate measuring apparatus includes a touch panel including a plurality of electrodes, a driver configured to generate a driving signal and to provide the driving signal to the touch panel, a receiver configured to receive a first receiving signal for detecting a change in capacitance from the touch panel and a second receiving signal corresponding to a signal transmitted from a coordinate indicating apparatus, and a processor configured to determine an activation region from which a hand position is detected, based on the second receiving signal, and determine the hand position in the determined activation region.
Abstract:
A method of detecting an input of an input marking apparatus includes generating and outputting a number signal to be written to the input marking apparatus, detecting the input marking apparatus in which the number signal is written, by detecting a response signal output from the input marking apparatus, and detecting a position of the input of the input marking apparatus of which the response signal is detected.
Abstract:
A coordinate indicating apparatus includes a channel electrode which includes a first plurality of electrodes arranged in a first direction and a second plurality of electrodes arranged in a second direction perpendicular to the first direction, and which has capacitance between the first plurality of electrodes and the second plurality of electrodes, the capacitance being changed by an approaching contact object; a driver configured to apply driving signals to the first plurality of electrodes simultaneously; a receiver configured to receive response signals from the second plurality of electrodes; and a controller configured to determine a location of the contact object based on the driving signals transmitted to the first plurality of electrodes and the response signals received from the second plurality of electrodes, wherein the driver is configured to simultaneously apply, to the first plurality of electrodes, continuous driving signals according to a matrix corresponding to a Hadamard matrix, and wherein the driving signals exclude a time section.
Abstract:
Provided are a method and an apparatus for detecting a touch input. The method includes: determining a contact position, on a touchscreen, of a coordinate indicating apparatus by detecting a change in an electricity-storing device, the change being caused by a contact between the coordinate indicating apparatus and the touchscreen; and obtaining identification information of the coordinate indicating apparatus by transmitting an electromagnetic signal, as an energy source, to the coordinate indicating apparatus.