Patent ID: 9600129
Date: 2017-03-21
CPC Classifications: G06F,G09G

Claim:
1. A display device, comprising: a plurality of first lines extending in a first direction to be arranged in a second direction intersecting the first direction; a plurality of second lines extending in the second direction to be arranged in the first direction; a plurality of switch elements, each of the plurality of switch elements being electrically connected to one of the plurality of first lines and one of the plurality of second lines; a plurality of pixel electrodes electrically connected respectively to the plurality of switch elements; a plurality of third lines extending in the second direction to be arranged in the first direction; a display layer performing an optical operation of at least one of a light emission or a change of an optical characteristic based on an electrical signal applied to the plurality of pixel electrodes; a plurality of fourth lines forming a capacitance between the third lines and the fourth lines; a controller including at least one switch connected between the second lines and the third lines, the controller applying a touch sensing pulse signal to the third lines and sensing a contact or a proximity of an object based on an output of the fourth lines, wherein in a display interval, the controller implements a first operation of supplying an image signal to the plurality of second lines while setting one of the plurality of first lines to a select potential, setting a selection pixel electrode of the plurality of pixel electrodes electrically connected to a selection switch element of the plurality of switch elements to an image potential based on the image signal via the selection switch element, and setting one of the plurality of third lines to a display counter potential, the selection switch element being electrically connected to the first line set to the select potential, and in a non-display interval, the controller implements a second operation of setting a potential of at least one of the plurality of second lines to be the same as a potential of one of the plurality of third lines, the plurality of second lines includes a first signal line, the plurality of third lines includes a first common line, the controller includes: the second operation includes: