An electronic device comprising: a base member comprising a touch area defined inside a first closed-shape, the first closed-shape being defined by a first imaginary line, and a peripheral area disposed adjacent to the touch area and defined outside the first closed-shape, the first imaginary line comprising a curved line; and a touch sensor comprising a plurality of patterns disposed in the touch area to sense a touch from outside and a driving line disposed in the peripheral area and connected to a pattern disposed adjacent to the first closed-shape, characterized in that the touch area comprises: a first area defined inside a second closed-shape, the second closed-shape being defined by a second imaginary line defined in the touch area, a second area defined outside the second closed-shape and surrounded by the first closed-shape, and edge patterns (PP-E) disposed in the second area and comprising one side portion adjacent to the first imaginary line, each of the edge patterns having an area substantially equal to or greater than approximately one-half of an area of a center pattern (PP-C) disposed in the first area, wherein at least some of the edge patterns have a triangular shape, sides of all the edge patterns having a triangular shape have different lengths, and the one side portion of each of the edge patterns adjacent to the curved line of the first imaginary line is a straight line. a base member comprising a touch area defined inside a first closed-shape, the first closed-shape being defined by a first imaginary line, and a peripheral area disposed adjacent to the touch area and defined outside the first closed-shape, the first imaginary line comprising a curved line; and a touch sensor comprising a plurality of patterns disposed in the touch area to sense a touch from outside and a driving line disposed in the peripheral area and connected to a pattern disposed adjacent to the first closed-shape, characterized in that the touch area comprises: a first area defined inside a second closed-shape, the second closed-shape being defined by a second imaginary line defined in the touch area, a second area defined outside the second closed-shape and surrounded by the first closed-shape, and edge patterns (PP-E) disposed in the second area and comprising one side portion adjacent to the first imaginary line, each of the edge patterns having an area substantially equal to or greater than approximately one-half of an area of a center pattern (PP-C) disposed in the first area, a first area defined inside a second closed-shape, the second closed-shape being defined by a second imaginary line defined in the touch area, a second area defined outside the second closed-shape and surrounded by the first closed-shape, and edge patterns (PP-E) disposed in the second area and comprising one side portion adjacent to the first imaginary line, each of the edge patterns having an area substantially equal to or greater than approximately one-half of an area of a center pattern (PP-C) disposed in the first area, wherein at least some of the edge patterns have a triangular shape, sides of all the edge patterns having a triangular shape have different lengths, and the one side portion of each of the edge patterns adjacent to the curved line of the first imaginary line is a straight line.