# US 9,436,089 B2 · Conductive film manufacturing method, conductive film, and recording medium

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- Number: US 9,436,089 B2
- Document ID: US9436089B2
- Status: Granted
- Kind: B2
- Application number: 14/665,615
- Filed: 2015-03-23
- Published: 2015-07-09
- Granted: 2016-09-06
- Earliest claimed: 2010-03-31
- Assignees: FUJIFILM Corporation
- Applicants: FUJIFILM Corporation
- Inventors: Takashi Wakui; Hideyasu Ishibashi; Osamu Shimazaki
- Web page: https://patentgrep.com/patent/US9436089B2

## CPC

- G03F 7/20: Exposure; Apparatus therefor (photographic printing apparatus for making copies G03B27/00)
- H01B 13/003: {using irradiation}
- H05K 9/0086: {comprising a single discontinuous metallic layer on an electrically insulating supporting structure, e.g. metal grid, perforated metal foil, film, aggregated flakes, sintering}
- G03F: PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR; (phototypographic composing devices B41B; photosensitive materials or processes for photographic purposes G03C; electrophotography, sensitive layers or processes therefor G03G)
- H01B: CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES (selection for magnetic properties H01F1/00; waveguides H01P {; printed circuits H05K})
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS

## Abstract

Disclosed is a method for manufacturing a conductive film in which a mesh pattern comprising a wire material is provided on a base material. Also disclosed are a conductive film and a recording medium. Image data representing a mesh pattern is created on the basis of a plurality of selected positions. On the basis of said image data, an evaluation value which quantifies noise characteristics of the mesh pattern is computed. On the basis of the computed evaluation value and prescribed evaluation conditions, one image datum is chosen as an output image datum.

## Claims

### Claim 1

A method for manufacturing a conductive film comprising:
a position selecting step for selecting plural positions from among a predetermined two-dimensional image region;
an image data generating step for generating image data representing the pattern of a mesh pattern based on the selected plural positions;
an evaluation value calculating step for calculating an evaluation value obtained by quantifying noise characteristics of the mesh pattern based on the generated image data;
an image data determining step for determining as output image data one of the image data based on the calculated evaluation value and predetermined evaluation conditions; and
a forming step of outputting and forming wire a material on a substrate material based on the determined output image data to thereby manufacture the conductive film having the mesh pattern.

### Claim 2 (depends on 1)

The method for manufacturing a conductive film according to claim 1, further comprising:
a structural pattern input step of inputting visual information of the pattern material in relation to visibility of the structural pattern in the case that a pattern material for forming a structural pattern having a pattern different from the pattern of the mesh pattern is superimposed on the conductive film and visual confirmation thereof is performed; and
an image information estimating step of estimating image information of the structural pattern based on the input visual information of the pattern material,
wherein based on the estimated structural pattern image information, the image data generating step generates the image data representing a pattern in which the structural pattern is superimposed on the mesh pattern.

### Claim 3 (depends on 2)

The method for manufacturing a conductive film according to claim 2, wherein at least one of a type, a color value, an optical transmittance, and an optical reflectance of the pattern material, and an arrangement position, a unit shape, and a unit size of the structural pattern is included in the visual information of the pattern material.

### Claim 4 (depends on 2)

The method for manufacturing a conductive film according to claim 2, wherein the pattern material comprises a black matrix.

### Claim 5 (depends on 1)

The method for manufacturing a conductive film according to claim 1, further comprising:
a first input step of inputting visual information of the wire material in relation to the visibility of the mesh pattern;
a second input step of inputting visual information of the substrate material in relation to the visibility of the mesh pattern; and
an estimating step of estimating image information of the mesh pattern based on the input visual information of the wire material and the substrate material,
wherein, in the image data generating step, the image data is generated based on the estimated image information of the mesh pattern.

### Claim 6 (depends on 1)

The method for manufacturing a conductive film according to claim 1, wherein the evaluation value is an evaluation value representative of a degree of granularity.

### Claim 7 (depends on 6)

The method for manufacturing a conductive film according to claim 6, wherein the evaluation value is an RMS granularity.

### Claim 8 (depends on 7)

The method for manufacturing a conductive film according to claim 7, wherein the evaluation value is an RMS granularity corrected by a human visual response characteristic function.

### Claim 9 (depends on 8)

The method for manufacturing a conductive film according to claim 8, wherein the human visual response characteristic function is a Dooley-Shaw function.

### Claim 10 (depends on 8)

The method for manufacturing a conductive film according to claim 8, wherein the corrected RMS granularity is an RMS granularity calculated using new image data obtained by effecting a filtering process corresponding to the human visual response characteristic function with respect to the image data.

### Claim 11 (depends on 1)

The method for manufacturing a conductive film according to claim 1, wherein in the image data generating step, a mesh-shaped pattern is formed from the plural positions using a Delaunay triangulation method, and image data representing the pattern is created.

### Claim 12 (depends on 1)

The method for manufacturing a conductive film according to claim 1, wherein in the image data generating step, a mesh-shaped pattern is formed from the plural positions using a Voronoi diagram, and image data representing the pattern is created.

### Claim 13 (depends on 1)

The method for manufacturing a conductive film according to claim 1, further comprising:
a position updating step of respectively updating part of the plural positions with other positions based on the evaluation value,
wherein the position updating step, the image data generating step, and the evaluation value calculating step are repeated successively, and the output image data is determined by the image data determining step.

### Claim 14 (depends on 13)

The method for manufacturing a conductive film according to claim 13, wherein, in the position updating step, the part of the plural positions are updated with the other positions respectively using a simulated annealing method.

### Claim 15 (depends on 1)

A conductive film which is manufactured using the manufacturing method of claim 1.

### Claim 16

A non-transitory recording medium storing a program for enabling a computer to create output image data for use in manufacturing a conductive film, wherein the program further enables the computer to function as:
a position selecting unit for selecting plural positions from among a predetermined two-dimensional image region;
an image data generating unit for generating image data representing the pattern of a mesh pattern based on the plural positions selected by the position selecting unit;
an evaluation value calculating unit for calculating an evaluation value obtained by quantifying noise characteristics of the mesh pattern based on the image data generated by the image data generating unit; and
an image data determining unit for determining as output image data one of the image data based on the evaluation value calculated by the evaluation value calculating unit and predetermined evaluation conditions.
