Patent ID: 11907477
Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A display system, comprising:
a display device comprising a plurality of gate lines and a plurality of common electrodes, the display device used for both image display and touch detection; and
a control device that controls the display device, the control device including a drive circuit that generates a gate signal as at least a sine wave, and outputs the gate signal to the plurality of gate lines, wherein
when a specific frequency at which harmonics need to be restrained and a frequency of the gate signal satisfy a changing condition, the drive circuit generates the gate signal as the sine wave, and
when the specific frequency and the frequency of the gate signal do not satisfy the changing condition, the drive circuit generates the gate signal as a square wave.