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.
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 smartphone includes: a cover layer; a display module, and comprises a component configured to cause the LCD panel to perform a display function; a pressure electrode which is located under the display module; and a shielding member which is located under the pressure electrode. At least a portion of a touch sensor which senses touch in a capacitive manner is located in the display module.
Abstract:
Disclosed are a touch screen controller and a method for controlling the same, which includes a touch processor which processes at least two touch operation modes independently and respectively in accordance with an object touched on the touch screen.
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 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:
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:
In one embodiment, a touch input device capable of detecting a pressure of a touch on a touch surface is disclosed. The touch input device includes a substrate and a display module. A common voltage electrode is disposed within the display module. The touch input device further comprises an electrode which is disposed at a position where a distance between the electrode and the common voltage electrode changes according to the touch on the touch surface. The distance changes according to a magnitude of the pressure of the touch. Further, an electric signal depending on the distance is outputted from the electrode.