Display device
AssigneeJapan Display Inc.
InventorsMasahiro Tokita, Toshiaki Atsuta
Life of this patent
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Abstract
A display device is configured in a display state to allow the common electrode to function as an electrode for display and a scanning electrode for a touch panel, to which a common voltage and a first scanning pulse voltage are supplied, and to allow a detection circuit to detect a touched position based on the voltage detected by the first and the second detection electrodes. In a display stop state, the first detection electrode is configured to function as a temporary scanning electrode, and the detection circuit is configured to supply a second scanning pulse voltage to the first detection electrode so as to detect existence of a swipe based on the voltage detected by the second detection electrode.
Claims20
A display device comprising:
- an array substrate;
- a counter substrate;
- and
- a detection circuit,
- wherein the display device includes a first mode and a second mode;
- the array substrate includes a pixel electrode and a common electrode;
- the counter substrate includes a first detection electrode and a second detection electrode;
- the first detection electrode and the second detection electrode are alternately arranged;
- in the first mode, the common electrode is allowed to function as an electrode for display and a scanning electrode for a touch panel, to which a common voltage and a first scanning pulse voltage are supplied, and the detection circuit is configured to detect a touched position based on a voltage detected by the first and the second detection electrodes, and
- in the second mode, the first detection electrode is allowed to function as a temporary scanning electrode, and the detection circuit is configured to supply a second scanning pulse voltage to the first detection electrode so as to detect existence of a swipe based on a voltage detected by the second detection electrode.
A display device comprising:
- an array substrate:
- a counter substrate;
- a liquid crystal interposed between the array substrate and the counter substrate;
- and
- a detection circuit,
- wherein the display device includes a first mode and a second mode;
- the array substrate includes a pixel electrode and a common electrode;
- the counter substrate includes a first detection electrode and a second detection electrode;
- the first detection electrode and the second detection electrode are alternately arranged;
- the detection circuit includes an integration circuit and a voltage supply circuit for supplying a calibration voltage for the integration circuit;
- in the first mode, the common electrode is allowed to function as an electrode for display and a scanning electrode for a touch panel, to which a common voltage and a first scanning pulse voltage are supplied, and the detection circuit is configured to detect a touched position based on a voltage detected by the first and the second detection electrodes, and
- in the second mode, the first detection electrode is allowed to function as a temporary scanning electrode, the voltage supply circuit is configured to supply a second scanning pulse voltage to the first detection electrode, and the detection circuit is configured to detect existence of a touch or a swipe based on a voltage detected by the second detection electrode.
Dependencies are inferred from the claim text.