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US 2015/0145822 A1Published application
Display device with touch detecting function and electronic apparatus
AssigneeJapan Display Inc.
InventorTadayoshi KATSUTA
Life of this patent
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Abstract
A display device with a touch detecting function includes wiring for touch arranged in a peripheral area positioned on the outside of a display area, and a selection switch that selects one of drive electrodes to be coupled to the wiring for touch. A drive electrode scanning unit selects one of drive electrodes and includes a plurality of transfer circuits in the peripheral area. Part of the transfer circuits is a transfer circuit that performs output to the selection switch.
Claims12
A display device with a touch detecting function comprising:
- a plurality of pixel electrodes arranged in a display area;
- a plurality of drive electrodes arranged opposed to the pixel electrodes;
- a control device that applies a drive voltage for display between the plurality of pixel electrodes and the plurality of drive electrodes;
- a touch detection electrode opposed to the plurality of drive electrodes;
- wiring for touch that is arranged in a peripheral area positioned outside of the display area and supplies a drive signal for touch to the plurality of drive electrodes;
- and
- a selection switch that selects one of the plurality of drive electrodes to be coupled to the wiring for touch,
- wherein the control device includes a drive electrode scanning unit selecting one of the plurality of drive electrodes, the drive electrode scanning unit includes a plurality of transfer circuits for supplying the drive signal for touch in the peripheral area, and
- part of the transfer circuits is a transfer circuit that controls the selection switch.
6 more elements
An electronic apparatus comprising:
- a display device with a touch detecting function,
- the display device with a touch detecting function including:
- a plurality of pixel electrodes arranged in a display area;
- a plurality of drive electrodes arranged opposed to the pixel electrodes;
- a control device that applies a drive voltage for display between the plurality of pixel electrodes and the plurality of drive electrodes based on an image signal;
- a touch detection electrode opposed to the drive electrode;
- a touch detection unit coupled to the touch detection electrode;
- wiring for touch that is arranged in a picture frame area positioned outside of the display area and supplies a drive signal for touch to the plurality of drive electrodes;
- and
- a selection switch that selects one of the plurality of drive electrodes to be coupled to the wiring for touch,
- wherein the control device includes a drive electrode scanning unit that selects one of the plurality of drive electrodes to which the drive signal for touch is supplied,
- the drive electrode scanning unit includes a plurality of transfer circuits for supplying the drive signal for touch to the one of the plurality of drive electrodes, and
- part of the transfer circuits is a transfer circuit that controls the selection switch.
10 more elements
Dependencies are inferred from the claim text.