Display apparatus and touch detection apparatus using shift of detection operation for reduced detection time
First Claim
1. A display apparatus, comprising:
- a display face;
a display function layer adapted to display image data on the display face in response to an input image signal;
a plurality of driving electrodes disposed separately in one direction;
a detection scanning control section configured to apply a detection driving voltage simultaneously to some of the plurality of driving electrodes and carry out detection scanning while shifting application of the detection driving voltage in the one direction and control the detection scanning such that jump shifts are performed at a pitch of two times or more of an arrangement pitch of the driving electrodes;
a plurality of sensor lines disposed separately in a direction different from the one direction and responding to touch or proximity of a detection object with or to the display face to exhibit an electric variation, whereinin the jump shifts, the detection scanning control section applies the detection driving voltage to some of the plurality of driving electrodes, anda shift amount between successive jump shifts performed by the detection scanning control section is greater than the arrangement pitch of the plurality of driving electrodes; and
further wherein a region defined by a group composed of the some of the plurality of driving electrodes to which the detection driving voltage is applied includes a plurality of sensor lines and a plurality of driving electrodes so that detection scanning is completed in a fraction of time required for display scanning.
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Abstract
A display apparatus includes: a display face; a display function layer adapted to vary display on the display face in response to an inputted image signal; a plurality of driving electrodes disposed separately in one direction; a detection scanning control section configured to apply a detection driving voltage to some of the plural driving electrodes and carry out detection driving scanning while shifting an application object of the detection driving voltage in the one direction on the display face and then control the detection driving scanning such that jump shift of carrying out shift with a pitch of twice or more times a driving electrode pitch is included; and a plurality of sensor lines disposed separately in a direction different from the one direction and responding to touch or proximity of a detection object with or to the display face to exhibit an electric variation.
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Citations
17 Claims
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1. A display apparatus, comprising:
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a display face; a display function layer adapted to display image data on the display face in response to an input image signal; a plurality of driving electrodes disposed separately in one direction; a detection scanning control section configured to apply a detection driving voltage simultaneously to some of the plurality of driving electrodes and carry out detection scanning while shifting application of the detection driving voltage in the one direction and control the detection scanning such that jump shifts are performed at a pitch of two times or more of an arrangement pitch of the driving electrodes; a plurality of sensor lines disposed separately in a direction different from the one direction and responding to touch or proximity of a detection object with or to the display face to exhibit an electric variation, wherein in the jump shifts, the detection scanning control section applies the detection driving voltage to some of the plurality of driving electrodes, and a shift amount between successive jump shifts performed by the detection scanning control section is greater than the arrangement pitch of the plurality of driving electrodes; and further wherein a region defined by a group composed of the some of the plurality of driving electrodes to which the detection driving voltage is applied includes a plurality of sensor lines and a plurality of driving electrodes so that detection scanning is completed in a fraction of time required for display scanning. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A touch detection apparatus, comprising:
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a detection face; a plurality of driving electrodes disposed separately in one direction; a detection scanning control section configured to apply a detection driving voltage simultaneously to some of the plurality of driving electrodes and carry out detection driving scanning while shifting application of the detection driving voltage in the one direction and control the detection driving scanning such that jump shifts are performed at a pitch of two times or more of an arrangement pitch of the driving electrodes; and a plurality of sensor lines disposed separately in a direction different from the one direction and adapted to exhibit, if a detection object is brought into touch with or proximity to the detection face while the detection driving scanning is being carried out by the detection scanning control section, electric variation in response to the touch or the proximity, wherein in the jump shifts, the detection scanning control section applies the detection driving voltage to some of the plurality of driving electrodes, and a shift amount between successive jump shifts performed by the detection scanning control section is greater than the arrangement pitch of the plurality of driving electrodes; and further wherein a region defined by a group composed of the some of the plurality of driving electrodes to which the detection driving voltage is applied includes a plurality of sensor lines and a plurality of driving electrodes so that detection scanning is completed in a fraction of time required for display scanning.
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Specification