Patent ID: 9430086
Filing Date: 2016-08-30
CPC Classification: G02F,G06F

Claim Text:
1. A display panel comprising: display elements; a plurality of drive electrodes; one or more touch detecting electrodes that form a capacitor along with the corresponding drive electrode; a main driver unit that generates a basic drive signal including a pulse part supplied to the drive electrodes; a first auxiliary driver unit that includes a capacitive element and that exchanges electric charges between the capacitive element and the drive electrodes in synchronization with the pulse part; and a voltage supply unit, wherein the first auxiliary driver unit further includes a first switch that controls the exchange of electric charges between the capacitive element and the drive electrode, wherein the pulse part changes between two voltage levels, wherein the first switch is turned on at a time corresponding to a rising or falling of the pulse part, wherein the pulse part changes from a voltage of a first level to a voltage of a second level, wherein the capacitive element is set, in a period in which the first switch is turned off, to a voltage of a third level that is previously determined depending on the voltage of the second level, wherein the voltage supply unit is configured to generate and supply the voltage of the third level to the capacitive element, and wherein the first auxiliary driver unit further includes a voltage supply switch configured to control the supply of the voltage of the third level, which is generated by the voltage supply unit, to the capacitive element.