Display apparatus and touch detection apparatus using shift of detection operation for reduced detection time

摘要

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.

主权项

1. A display apparatus, comprising:
a display face; a display function layer adapted to display image data on said 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 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; 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 said display face to exhibit an electric variation, wherein the plurality of driving electrodes are divided into a plurality of groups that are arranged in the one direction, each of the plurality of groups are divided into a plurality of small groups, said detection scanning control section applies the detection driving voltage respectively to each small group, in the jump shifts, said detection scanning control section applies the detection driving voltage to the plurality of groups alternately such that the detection driving voltage is not continuously applied to at least two small groups that are adjacent to each other at a same time, and a shift amount between successive jump shifts performed by said detection scanning control section is a predetermined fixed pitch interval; and further wherein a region defined by each small group 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.