Abstract:
A touch input device includes a touch sensor including a plurality of touch electrodes; a display panel; and a reference potential layer. The touch sensor is completely laminated with the display panel. When a touch pressure is applied, the touch sensor and the display panel are bent. The reference potential layer is disposed apart from the touch sensor. A touch position is detected based on a first capacitance which is detected from the touch electrode and is changed by an approach of an object to the touch sensor. A magnitude of the touch pressure is detected based on a second capacitance which is detected from the touch electrode and is changed according to a distance between the touch sensor and the reference potential layer.
Abstract:
A smartphone includes a cover layer; an LCD panel which is located under the cover layer and includes a liquid crystal layer, and a first glass layer and a second glass layer between which the liquid crystal layer is placed, wherein at least a portion of a touch sensor which senses touch in a capacitive manner is located between the first glass layer and the second glass layer; a backlight unit which is located under the LCD panel; a pressure electrode which is located under the backlight unit; and a shielding member which is located under the pressure electrode.
Abstract:
Disclosed is a method for minimizing noise on a touch panel including a plurality of drive lines and a plurality of sensing lines, wherein the drive lines and the sensing lines cross each other, the method including: performing a dummy scan to sense a signal from the sensing line in a state where a driving signal is not applied to the drive line; and comparing a threshold with a magnitude of a signal obtained through the dummy scan, and estimating noise in a first frequency band, i.e., a frequency of the driving signal.
Abstract:
A touch input device may be provided that includes: a touch sensor panel including a plurality of drive electrodes, a plurality of receiving electrodes and a plurality of node capacitors formed by the drive electrode and the receiving electrode; a driving part applying a driving signal to the drive electrode; a detector including a receiver which receives a signal including information on a capacitance of the node capacitor through the receiving electrode and integrates the signal; and an input capacitor connected between the receiver and the receiving electrode.
Abstract:
A touch input device may be provided that includes: a touch sensor panel comprising n number of drive electrodes, m number of receiving electrodes, and a plurality of node capacitors which are formed by the drive electrodes and the receiving electrodes; a driving part which applies a driving signal to the drive electrode; a data processor which receives a signal including information on a capacitance of the node capacitor through the receiving electrode and detects touch information on the touch sensor panel; and a controller which controls the driving part to apply the driving signal to k number of the drive electrodes of n number of the drive electrodes in a first drive mode. The “n”, “m”, and “k” are natural numbers greater than 2 and “k” is less than “n”.
Abstract:
A touch panel control device may be provided that includes: a touch panel which generates at least one touch signal in response to a touch of an object; a displayer; and a controller which performs a first touch action mode in which the change of the touch position of the object is displayed on the displayer by a line in response to the object which has touched the touch panel, and performs a second touch action mode in which, in response to the position change of the object which corresponds to the position of the line displayed on the displayer, it is to carry out at least one of the removal of at least a portion of the line displayed on the displayer and the change of the color coordinate of the line. Also, a method for controlling the touch panel may be also provided.
Abstract:
A touch input device performing a feedback according to a touch level may be provided that includes: a touch screen which displays a passcode input window; a controller which generates a first control signal as to whether or not a touch on the passcode input window matches a predetermined passcode, and determines a touch level among a plurality of touch levels by using at least one of a pressure magnitude, area and time period of the touch; and a memory which stores the predetermined passcode. The touch level is set to the predetermined passcode.
Abstract:
A touch panel input device and an input detection method thereof are provided. A driving signal is controlled to include a plurality of time intervals in which the driving signal is applied to at least one of at least two driving signal electrodes simultaneously driven, and in which the driving signal is not applied to at least one of at least two driving signal electrodes simultaneously driven. A driving signal supplier causes that a combination of the driving signal electrode to which the driving signal is applied in one of the plurality of time intervals and the driving signal electrode to which the driving signal is not applied in the one of the plurality of time intervals is different from a combination of the driving signal electrode to which the driving signal is applied in the other of the plurality of time intervals and the driving signal electrode to which the driving signal is not applied in the other of the plurality of time intervals. At least one among the driving signals which are simultaneously applied to the driving signal electrode has a phase difference from the other driving signals.
Abstract:
Disclosed is a voltage level converter that includes: a first conversion unit which receives at least one input signal of a logic 1 signal and a logic 0 signal from a signal input terminal and converts the signal; a second conversion unit and a third conversion unit which alternately output a logic −1 signal and the logic 1 signal respectively in accordance with the input signal; a fourth conversion unit and a fifth conversion unit which alternately output the logic −1 signal and the logic 0 signal respectively in accordance with the input signal; and a latch which has a complementary characteristic in which if a first transistor becomes an on-state, then a second transistor becomes an off-state in accordance with the input signal, and performs a positive feedback operation. A drain output of the first transistor is input to the fourth conversion unit. A drain output of the second transistor is input to the fifth conversion unit.
Abstract:
A touch panel input device and an input detection method thereof are provided. The touch panel input device including: a driving signal supplier which simultaneously applies a first driving signal and a second driving signal to at least two of the plurality of driving signal electrodes respectively, wherein the first and second driving signals include a plurality of pulses in a first interval and a second interval respectively, wherein, in one of the first and second intervals, the plurality of pulses of the second driving signal is applied differently from the plurality of pulses of the first driving signal; and a signal sensor receiving sensing signals including information on capacitances of at least two of the plurality of the node capacitors from the plurality of sensing signal electrodes in the first and second intervals.