Display panel with touch detection function, method of driving the same, driving circuit, and electronic unit
AssigneeJapan Display Inc.
InventorsHiroshi Mizuhashi, Yoshitoshi Kida, Koji Noguchi
Life of this patent
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Abstract
A display panel with a touch detection function, in which display operation is less affected by touch detection operation, a method of driving the display panel with a touch detection function, a driving circuit, and an electronic unit having the display panel with a touch detection function are disclosed. The display panel with a touch detection function includes: one or more display elements; one or more drive electrodes; one or more touch detection electrodes; and a drive section selectively applying a DC drive signal or an AC drive signal to the drive electrodes.
Claims16
A driving circuit with a touch detector for a display panel having a plurality of pixel electrodes and a plurality of common electrodes, the driving circuit comprising
- a drive section configured to selectively output a first drive signal or a second drive signal for driving at least one of the common electrodes,
- wherein
- the drive section is configured to output:
- the first drive signal for driving at least one of the common electrodes in order to perform a write operation on the display panel for display during a write period;
- and
- the second drive signal for driving at least one of the common electrodes in order to perform a touch detection in a touch detection period other than the write period, the second drive signal being different from the first drive signal and having a pulse waveform that transitions from a first voltage to a second voltage.
Dependencies are inferred from the claim text.