Abstract: In one embodiment, a touch input device includes a cover layer; a touch sensor; a display panel which is located under the cover layer; a pressure electrode which is located under the display panel; and a first converter which converts a signal comprising information for electrical characteristics outputted from the pressure electrode to a digital signal; wherein a driving signal is applied to the touch sensor and a touch position is detected from a sensing signal which is outputted from the touch sensor; and wherein a magnitude of a touch pressure is detected from the digital signal converted by the first converter.

Abstract: A touch input device may be provided that includes: a mid-frame; a cover disposed on the mid-frame; a display module disposed between the mid-frame and the cover; and a sensor which is disposed between the mid-frame and the cover and detects at least any one of a touch and a pressure. The mid-frame includes a base plate which includes a top surface and a bottom surface. The mid-frame includes a reinforcing member which is disposed on the top surface of the base plate and is configured to reinforce a strength of the base plate.

Abstract: A touch input device capable of detecting a touch pressure in accordance with an embodiment of the present invention may be provided that includes: a reference potential layer; a pressure sensor spaced apart from the reference potential layer; and an intermediate member having at least one through-hole formed therein. Air between the reference potential layer and the pressure sensor flows through the intermediate member via the through-hole. A capacitance detected from the pressure sensor is changed according to a change of a distance between the reference potential layer and the pressure sensor.

Abstract: In one embodiment, a touch input device capable of detecting a pressure of a touch on a touch surface includes a display panel and an electrode disposed under the display panel. An electrical characteristic detected at the electrode is changed by the bending of the display panel. A magnitude of the pressure applied to the touch surface is detected according to the change amount of the electrical characteristic. The display panel includes a first area and a second area. A pressure detection sensitivity of the first area is higher than a pressure detection sensitivity of the second area. When the first area and the second are bent to the same degree, a change amount of the electrical characteristic detected when a pressure is applied to the second area is greater than a change amount of the electrical characteristic detected when a pressure is applied to the first area.

Abstract: An electrode sheet including an electrode layer and a support layer may be provided. The electrode layer includes a first electrode and a second electrode. The electrode sheet is used to detect a capacitance change between the first electrode and the second electrode, which is changed according to a relative distance change between the electrode layer and a reference potential layer disposed apart from the electrode sheet. The support layer is made of a material which is bent when a pressure is applied thereto and which is restored to its original state when the pressure is released therefrom.

Abstract: An electrode sheet including an electrode layer and a support layer may be provided. The electrode layer includes a first electrode and a second electrode. The electrode sheet is used to detect a capacitance change between the first electrode and the second electrode, which is changed according to a relative distance change between the electrode layer and a reference potential layer disposed apart from the electrode sheet. The support layer is made of a material which is bent when a pressure is applied thereto and which is restored to its original state when the pressure is released therefrom.

Abstract: Disclosed is a tunable capacitor. The tunable capacitor according to a first embodiment of the present invention includes: a variable capacitor unit placed between a first terminal and a second terminal; and a bypass switch which on/off controls a bypass connection between the first terminal and the second terminal, wherein the variable capacitor unit and the bypass switch are integrated on one semiconductor die or on one module. The tunable capacitor according to a second embodiment of the present invention includes: a variable capacitor unit placed between a first terminal and a second terminal; an impedance tuner placed between aground terminal and either the first terminal or the second terminal; and a tuning switch which on/off controls the connection between the variable capacitor unit and an impedance tuner, wherein the variable capacitor unit, the impedance tuner and the tuning switch are integrated on one semiconductor die or on one module.

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: 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 method for distinguishing a touch type in a touch input device including a touch screen may be provided that includes: determining whether a touch on the touch screen includes a time interval during which the touch has a pressure greater than a first pressure within a first time period; and distinguishing the touch type in accordance with whether or not the touch includes a time interval during which the touch has a pressure greater than the first pressure within the first time period.

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 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 are a touch screen controller and a method for controlling the same.

Abstract: A touch input device capable of detecting a pressure of a touch on a touch surface includes: a display module and a pressure electrode. The display module includes a display panel and a reference potential layer. An electrical signal, which is changed according to a capacitance between the pressure electrode and the reference potential layer, is detected from the pressure electrode and the capacitance changes depend on a change of a relative distance between the pressure electrode and the reference potential layer, such that the pressure of the touch is detected based on the capacitance.

Abstract: A smartphone may be provided that includes: a cover layer; an LCD panel; a backlight unit which is located under the LCD panel; a pressure electrode which is located under the backlight unit; a shielding member which is located under the pressure electrode; and a converter which converts a signal comprising information for a capacitance change amount outputted from the pressure electrode to a digital signal. A magnitude of a touch pressure is detected from the digital signal.

Abstract: A touch detection chip may be provided that includes: a drive unit which applies a drive signal to at least two of a plurality of electrodes; a sensing unit which receives a plurality of signals from the at least two of the plurality of electrodes and detects a touch position and a touch pressure; and a plurality of input terminals for receiving the plurality of signals. At least one of the plurality of input terminals is a pressure detection input terminal.

Abstract: A touch input device capable of detecting a pressure of a touch on a touch surface may be provided that includes: a display panel; and an electrode disposed under the display panel. When a pressure is applied to the touch surface, a distance between the electrode and a reference potential layer is changed. A capacitance which is detected at the electrode is changed according to the distance change. The display panel includes a first area and a second area. Under a same distance change condition, a capacitance change amount detected at the electrode disposed under the second area is greater than a capacitance change amount detected at the electrode disposed under the first area.

Abstract: A touch input device capable of detecting a touch pressure is provided that includes: a display module having a pressure electrode which is formed on a back side of the display panel and is for detecting the pressure; and a reference potential layer which is formed separately from the pressure electrode. The touch input device detects the touch pressure on the basis of a capacitance change amount according to a change of a distance between the pressure electrode and the reference potential layer. As a result of this, the touch input device becomes thinner, has a reduced manufacturing cost thereof, and detects a touch position and touch pressure without deteriorating the visibility and optical transmittance of the display module.

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 capable of detecting a pressure of a touch on a touch surface includes: a display module including a display panel; a substrate which is located under the display module and is spaced apart from the display module by a spacer layer; and a pressure electrode. An electrical signal, which is changed according to a capacitance between the pressure electrode and the substrate, is detected from the pressure electrode, and the capacitance changes depend on a change of a relative distance between the pressure electrode and the substrate, such that the pressure of the touch is detected based on the capacitance.