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Display unit with touch detection function, and electronic device

  • US 10,162,470 B2
  • Filed: 02/16/2017
  • Issued: 12/25/2018
  • Est. Priority Date: 08/19/2010
  • Status: Active Grant
First Claim
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1. A display unit with a touch detection function, the display unit comprising:

  • (a) a plurality of touch detection electrodes that are disposed in a first layer and that output a detection signal based on a variation in capacitance due to an external proximity object, the touch detection electrodes including (1) a plurality of strip-shaped electrode parts arranged in parallel to each other, (2) a plurality of connection parts that connect the strip-shaped electrode parts to each other in a first direction perpendicular to a second direction in which each of the strip-shaped electrode parts extends, and (3) a plurality of openings arrayed in the first direction and defined and surrounded by the strip-shaped parts and the connection parts;

    (b) a plurality of display elements disposed in a display region in a second layer different than the first layer in which the touch detection electrodes are disposed, the display elements being arranged at a predetermined pitch in the first direction, the display elements forming display pixels each of which includes a red sub-element, a green sub-element, and a blue sub-element also arrayed in the first direction; and

    (c) a plurality of dummy electrodes disposed in the first layer in which the touch detection electrodes are disposed,wherein,in a plan view, the dummy electrodes are disposed in a region between touch detection electrodes,the dummy electrodes include (1) a plurality of dummy electrode strip-shaped parts arranged in parallel to each other, (2) a plurality of dummy electrode connection parts that connect the dummy electrode strip-shaped parts to each other in the first direction, and (3) a plurality of dummy electrode openings arrayed in the first direction and defined and surrounded by the dummy electrode strip-shaped parts and the dummy electrode connection parts,in the plan view, the strip-shaped electrode parts and dummy electrode strip-shaped parts are spaced at a same pitch in the first direction,in the plan view, the strip-shaped electrode parts and the connection parts are provided in regions corresponding to borders between adjacent sub-elements,in the plan view, the dummy electrode strip-shaped parts and the dummy electrode connection parts are provided in regions corresponding to borders between adjacent sub-elements,in the plan view, each of the dummy electrode openings is disposed overlapping only a respective one of the green or blue sub-elements in the region between touch detection electrodes in such a manner that the openings expose therethrough the respective blue and green sub-elements in the region between touch detection electrodes, andin the plan view, each of the openings is disposed overlapping only a respective one of the display sub-elements in such a manner that the openings expose all the respective display sub-elements of each of the display pixels, including the red sub-element, the green sub-element, and the blue sub-element.

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