Patent ID: 9720536
Date: 2017-08-01
CPC Classifications: G06F,G09G

Claim:
1. A sensor-equipped display device comprising: a first substrate comprising a gate line extending in a first direction, a source line extending in a second direction intersecting the first direction, a switching element which is electrically connected to the gate line and the source line, and a pixel electrode which is electrically connected to the switching element; a common electrode which is opposed to the pixel electrode and extending in the first direction; and a detection electrode element which extends parallel to the common electrode, is formed of a metallic material, and is driven for sensing a state of closeness of a conductor brought externally, wherein: common electrodes, each corresponding to the common electrode of the first substrate, are driven by a first driving circuit for each bundle (or group) of n electrodes (where n is a positive integer), and detection electrode elements, each corresponding to the detection electrode element of the first substrate, are paired with the common electrodes and are driven by a second driving circuit for each bundle (or group) of n elements (where n is a positive integer); and when one bundle of the detection electrode elements is given a drive pulse from the second driving circuit, the first driving circuit allows a bundle of the common electrodes corresponding to the one bundle of the detection electrode elements being driven to be in a floating state, and fixes the remaining common electrodes at a predetermined direct-current voltage.