Touch screen, touch panel, display device and electronic device

A touch panel comprising:

• a touch screen;
• and
• a detection circuit, wherein
• said touch screen includes:
• a substrate which includes a main surface;
• a first electrode which is disposed on said main surface and includes a plurality of first wires, said plurality of first wires being one of detection wires and excitation wires and each including a first linear portion and a plurality of first branch portions, said first linear portion extending in a first direction, said plurality of first branch portions being branched from said first linear portion;
• an insulation film which is disposed on said main surface;
• and
• a second electrode which is disposed on said main surface, is insulated from said first electrode by said insulation film, and includes a plurality of second wires, said plurality of second wires being the other one of said detection wires and said excitation wires and each including a second linear portion and a plurality of second branch portions, said second linear portion extending in a second direction which is not parallel to said first direction, said plurality of second branch portions being branched from said second linear portion, said second linear portion three-dimensionally intersecting said first linear portion and not three-dimensionally intersecting said plurality of first branch portions, said plurality of second branch portions each including a rim portion, said second linear portion and said rim portion surrounding a cavity portion formed at each of said plurality of second branch portions, said rim portion including a portion parallel along an outline of said first linear portion or said plurality of first branch portions and not including a portion parallel along an outline of said second linear portion when seen in a plan view in a normal direction of said main surface, and
• said detection circuit detects a touch position touched by a pointing body on said touch screen based on a capacitance between said first electrode and said second electrode.

A display device comprising:

• a display element which displays information;
• and
• a touch panel, wherein
• said touch panel includes:
• a touch screen;
• and
• a detection circuit,
• said touch screen includes:
• a substrate which includes a main surface;
• a first electrode which is disposed on said main surface and includes a plurality of first wires, said plurality of first wires being one of detection wires and excitation wires and each including a first linear portion and a plurality of first branch portions, said first linear portion extending in a first direction, said plurality of first branch portions being branched from said first linear portion;
• an insulation film which is disposed on said main surface;
• and
• a second electrode which is disposed on said main surface, is insulated from said first electrode by said insulation film, and includes a plurality of second wires, said plurality of second wires being the other one of said detection wires and said excitation wires and each including a second linear portion and a plurality of second branch portions, said second linear portion extending in a second direction which is not parallel to said first direction, said plurality of second branch portions being branched from said second linear portion, said second linear portion three-dimensionally intersecting said first linear portion and not three-dimensionally intersecting said plurality of first branch portions, said plurality of second branch portions each including a rim portion, said second linear portion and said rim portion surrounding a cavity portion formed at each of said plurality of second branch portions, said rim portion including a portion parallel along an outline of said first linear portion or said plurality of first branch portions and not including a portion parallel along an outline of said second linear portion when seen in a plan view in a normal direction of said main surface,
• said detection circuit detects a touch position touched by a pointing body on said touch screen based on a capacitance between said first electrode and said second electrode, and
• said touch screen includes one main surface which is touched by the pointing body, and another main surface to which said display element is attached.

An electronic device comprising:

• a touch panel;
• and
• an electronic processing unit which performs electronic processing on a touch position, wherein
• said touch panel includes:
• a touch screen;
• and
• a detection circuit,
• said touch screen includes:
• a substrate which includes a main surface;
• a first electrode which is disposed on said main surface and includes a plurality of first wires, said plurality of first wires being one of detection wires and excitation wires and each including a first linear portion and a plurality of first branch portions, said first linear portion extending in a first direction, said plurality of first branch portions being branched from said first linear portion;
• an insulation film which is disposed on said main surface;
• and
• a second electrode which is disposed on said main surface, is insulated from said first electrode by said insulation film, and includes a plurality of second wires, said plurality of second wires being the other one of said detection wires and said excitation wires and each including a second linear portion and a plurality of second branch portions, said second linear portion extending in a second direction which is not parallel to said first direction, said plurality of second branch portions being branched from said second linear portion, said second linear portion three-dimensionally intersecting said first linear portion and not three-dimensionally intersecting said plurality of first branch portions, said plurality of second branch portions each including a rim portion, said second linear portion and said rim portion surrounding a cavity portion formed at each of said plurality of second branch portions, said rim portion including a portion parallel along an outline of said first linear portion or said plurality of first branch portions and not including a portion parallel along an outline of said second linear portion when seen in a plan view in a normal direction of said main surface, and
• said detection circuit detects the touch position touched by a pointing body on said touch screen based on a capacitance between said first electrode and said second electrode.