Abstract:
A display device according to the present inventive concept includes: a display panel comprising a pixel electrode receiving a data voltage and a common electrode receiving a common voltage; and a touch sensor comprising a plurality of driving electrodes and a plurality of sensing electrodes, wherein the touch sensor applies a touch detection signal to the plurality of driving electrode and detects a touch location by receiving a sense signal from the plurality of sensing electrode in an active mode, and determines whether a touch is made by receiving sense signals of the plurality of sensing electrodes, that are fluctuated by a ripple of a common voltage applied to the common electrode according to driving of the display panel in an idle mode.
Abstract:
There is provided an image display system. The image display system includes a touch controller configured to generate first touch event information and second touch event information each corresponding to a touch signal output from a touch panel, a display data generating unit configured to generate first display data to be displayed during one frame in response to the first touch event information, a graphic processing unit (GPU) configured to combine second display data with the first display data so as to generate output image data, the second display data corresponding to the second touch event information supplied from the touch controller, and a display controller configured to supply output image data generated by the GPU to a display panel.
Abstract:
A touch display apparatus includes a display panel, a touch electrode, a first pressure sensing electrode, a polarizer and a second pressure sensing electrode. The display panel includes a display region and a peripheral region, and displays an image. The touch electrode is disposed on the display region of the display panel, includes a plurality of touch patterns, and detects a touch position. The first pressure sensing electrode is disposed on the peripheral region of the display panel. The touch electrode and the first pressure sensing electrode are disposed in the same layer. The polarizer is disposed on the touch electrode and the first pressure sensing electrode, and includes a dielectric elastomer material. The second pressure sensing electrode is disposed on the polarizer, and overlaps the first pressure sensing electrode.
Abstract:
The inventive concept relates to a display device including a touch sensor. More particularly, the inventive concept relates to a display device including a hybrid touch sensor for sensing a touch position and a touch pressure. The display device includes: a display panel for displaying an image; and a touch sensor unit provided on the display panel, wherein the touch sensor unit includes a sensing electrode layer including a first touch sensor and a pressure sensing electrode, a conductor, and an elastic layer provided between the sensing electrode layer and the conductor, the first touch sensor includes a plurality of touch electrodes for sensing a touch position, the plurality of touch electrodes including a transparent conductive material, and the pressure sensing electrode, the conductor, and the elastic layer form a second touch sensor for sensing a touch pressure by a foreign object.
Abstract:
A touch screen panel includes: a plurality of touch electrodes formed, in matrix, on a display panel including a plurality of pixels including a common electrode to which common voltage is supplied and a touch driver distinguishing the plurality of touch electrodes to apply sensing driving signals having different polarities.