Electroconductive film, touch panel, and image display device
One aspect of the present invention provides a light-transmitting electroconductive film 10 comprising a light-transmitting base material 11 and an electroconductive part 13 provided on one surface of the light-transmitting base material 11 , wherein the electroconductive part 13 includes a light-transmitting resin 15 and plural electroconductive fibers 16 incorporated in the light-transmitting resin 15 , and the electroconductive part 13 can conduct electricity from the surface 13 A of the electroconductive part 13 , and the electroconductive fibers 16 as a whole are unevenly distributed on the light-transmitting base material side than the position HL, which is located at half the film thickness of the electroconductive part 13 in the electroconductive part 13 , and the electroconductive part 13 has a surface resistance value of 200Ω/□ or less, and the electroconductive film 10 has a haze value of 5% or less.
1. A light-transmitting electroconductive film comprising a light-transmitting resin base material and an electroconductive part provided on at least one surface of the light-transmitting resin base material,
wherein the electroconductive part comprises a light-transmitting resin and plural electroconductive fibers incorporated in the light-transmitting resin;
the electroconductive part can conduct electricity from the surface of the electroconductive part;
the electroconductive part is provided directly on at least one surface of the light-transmitting resin base material;
the electroconductive part has a surface resistance value of 200Ω/□ or less;
the electroconductive film has a haze value of 5% or less; and
a ratio of an electrical resistance in a second direction to that in a first direction is 2 or more when the electrical resistance values on the surface of the electroconductive part are measured in a predetermined size in six different directions including an arbitrary direction for each an angle of 30 degrees to the arbitrary direction in the surface of the electroconductive part, wherein a direction in which the electroconductive part shows the lowest electrical resistance value is designated as the first direction, and a direction which is orthogonal to the first direction is designated as the second direction.
2. A light-transmitting electroconductive film comprising an underlayer and an electroconductive part in this order on at least one surface of a light-transmitting resin base material,
wherein the electroconductive part comprises a light-transmitting resin and plural electroconductive fibers incorporated in the light-transmitting resin;
the underlayer is provided directly on at least one surface of the light-transmitting resin base material;
the electroconductive part is provided directly on the underlayer;
the electroconductive part has a surface resistance value of 200Ω/□ or less;
the electroconductive film has a haze value of 5% or less; and
a ratio of an electrical resistance value in a second direction to that in a first direction is 1 or more and less than 2 when the electrical resistance values on the surface of the electroconductive part are measured in a predetermined size in six different directions including an arbitrary direction for each an angle of 30 degrees to the arbitrary direction in the surface of the electroconductive part, wherein a direction in which the electroconductive part shows the lowest electrical resistance value is designated as the first direction, and a direction which is orthogonal to the first direction is designated as the second direction.
3. A light-transmitting electroconductive film comprising an underlayer and an electroconductive part in this order on at least one surface of a light-transmitting resin base material,
wherein the electroconductive part comprises a light-transmitting resin and plural electroconductive fibers incorporated in the light-transmitting resin;
the underlayer is provided directly on at least one surface of the light-transmitting resin base material;
the electroconductive part is provided directly on the underlayer;
the electroconductive part has a surface resistance value of 200Ω/□ or less;
the electroconductive film has a haze value of 5% or less; and
a ratio of an electrical resistance in a second direction to that in a first direction is 2 or more when the electrical resistance values on the surface of the electroconductive part are measured in a predetermined size in six different directions including an arbitrary direction for each an angle of 30 degrees to the arbitrary direction in the surface of the electroconductive part, wherein a direction in which the electroconductive part shows the lowest electrical resistance value is designated as the first direction, and a direction which is orthogonal to the first direction is designated as the second direction.