Conductive film, transparent heater, image forming method and recording medium

Abstract

The invention relates to a conductive film, a transparent heater, an image forming method and a recording medium. The conductive film (10) comprises plural conductive parts (14) and plural opening parts (16). Each conductive part (14) comprises a main line pattern (22) and plural auxiliary lines (24). The man line pattern (22) is formed by arranging plural wave-shaped lines (21) formed along a first direction on a second direction that is perpendicular to the first direction. Adjacent wave-shaped lines (20) are electrically connected through the plural auxiliary lines (24). The opening parts (16) are formed by parts that are divided by the wave-shaped lines (20) and the auxiliary lines (24). In the main line pattern (22), the at least cycle of the wave lines forming each wave-shaped line is irregular.

Description

technical field [0001] The present invention relates to a conductive film, a transparent heat generating body provided with the conductive film, a pattern forming method suitable for forming a wiring pattern of the conductive film, and a recording medium on which the pattern forming program is recorded, and the conductive film can be used as a vehicle Parts of defrosters, car window glass, etc. can also function as heat generating sheets by passing current to generate heat, and can also be used as electrodes for touch screens, inorganic EL elements, organic EL elements, or electrodes for solar cells . Background technique [0002] Conventionally, windows described in JP-A-2009-137455, for example, have been proposed as windows for passenger vehicles that require visibility and electromagnetic wave shielding properties. The window is provided with a mesh layer. In the mesh layer, arc-shaped and conductive wires missing a part of the circle are repeatedly arranged in a lattic...

AI Technical Summary

Problems solved by technology

When a pattern having a component in a one-dimensional direction is installed on a window glass of a vehicle as a heating element, there is an effect of aggravating uneven heat generation in a plane due to disconnection (disconnection)

In a pattern having a component in a two-dimensional direction, the irregularity of the wiring becomes stronger, and the wiring pattern becomes easier to see, that is, there is a problem that the visibility of the wiring is significantly deteriorated (wiring visibility)

[0006] The above-mentioned Japanese Patent Laid-Open No. 2009-137455 has a regular wiring pattern having components in two-dimensional directions. Therefore, when it is applied to a window glass of a vehicle, the expansion of the diffraction image caused by the light source and the wiring pattern becomes a problem.

In addition, there is also a problem that interference fringes caused by regular patterns are remarkably generated

[0007] Korean Laid-Open Patent No. 10-2009-0113757 is a wiring pattern having components in one-dimensional direction, so when it is used as a heating element installed in the window glass of a vehicle, there is an unavoidable heat generation due to wire breakage The problem of inhomogeneity

[0008] Korean Laid-Open Patent No. 10-2009-0113758 has an irregular wiring pattern with components in the two-dimensional direction, so the wiring pattern is very conspicuous, and there is a problem that wiring visibility deteriorates

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