Fujifilm Corporation

Reona Ikeda

Masaya Nakayama

Tadashi Kuriki

Shinichi Nakai

Yuki Matsunami

A conductive member for a touch panel includes a transparent insulating member; and a plurality of first electrodes extending in a first direction and arranged in parallel in a second direction intersecting the first direction, in which the plurality of first electrodes are constituted by a first mesh conductive film a plurality of fine metal wires are electrically connected, the plurality of first electrodes include a plurality of first main electrodes each having an electrode width Wa defined in the second direction and at least one first sub-electrode having an electrode width Wb smaller than Wa of the first main electrode in the second direction, the first sub-electrode is the first electrode arranged on an outermost side among the plurality of first electrodes, an opening ratio of the first sub-electrode is smaller than that of the first main electrode, and the first main electrode has a first dummy pattern.

Conductive member for touch panel and touch panel

A conductive member includes: a transparent insulating member; and a plurality of first electrodes each of which extend in a first direction and which are arranged in juxtaposition in a second direction orthogonal to the first direction, wherein the first electrode has a first detection electrode portion having a first mesh pattern constituted by electrically connecting a plurality of first mesh cells formed of metal fine wires and a first dummy pattern portion in the first electrode which is formed of metal fine wires arranged inside the first mesh cell of the first mesh pattern so as to be insulated from the first detection electrode portion, and in at least one of the first mesh cells, a first projection portion projecting from one side of the first mesh cell is formed so as to abut an end portion of the metal fine wire that forms the first dummy pattern portion.

Conductive member and touch panel

A conductive memberfor a touch panel includes a plurality of first electrodesextending in a first direction and arranged in parallel in a second direction intersecting the first direction, in which the plurality of first electrodes are constituted by a first mesh conductive film MFconstituted by a plurality of fine metal wires Ma, and include a plurality of first main electrodes each having a defined electrode width Wa and at least one first sub-electrode having an electrode width Wb smaller than the electrode width Wa of the first main electrode, and in which over an entire region of the first sub-electrode, a mesh pitch Pb of the first mesh conductive film MFconstituting the first sub-electrode in the second direction is smaller than a mesh pitch Pa of the first mesh conductive film MFconstituting the first main electrode in the second direction.

A first electrode on a first surface of a transparent insulating member has a first detection electrode portion having a first mesh pattern and a dummy pattern portion in the first electrode arranged so as to be insulated from the first detection electrode portion in a first mesh cell constituting the first mesh pattern, a second electrode on a second surface of the transparent insulating member has a second detection electrode portion having a second mesh pattern and a dummy pattern portion in the second electrode arranged so as to be insulated from a second detection electrode portion in a second mesh cell constituting the second mesh pattern, and a third mesh pattern is formed by combining the first detection electrode portion, the dummy pattern portion in the first electrode, the second detection electrode portion, and the dummy pattern portion in the second electrode.

A conductive member includes: a plurality of first electrodes; and a first dummy electrode which is arranged between the first electrodes adjacent to each other, in which the first electrode has a first detection electrode portion having a first mesh pattern constituted by electrically connecting a plurality of first mesh cells formed of metal fine wires and a dummy pattern portion in the first electrode which is formed of metal fine wires arranged inside the first mesh cell of the first mesh pattern so as to be insulated from the first detection electrode portion, the dummy pattern portion in the first electrode includes metal fine wires intersecting to each other, and the first dummy electrode is electrically insulated from the first detection electrode portion and is formed of metal fine wires.

In a conductive member, a first detection electrode portions of a first electrode formed on a first surface of a transparent insulating substrate and a dummy portion in the second electrode of a second electrode formed on a second surface of the transparent insulating substrate are combined with each other to form a first mesh pattern, a second detection electrode portion of the second electrode formed on the second surface of the transparent insulating substrate and a dummy portion in the first electrode of the first electrode formed on the first surface of the transparent insulating substrate are combined with each other to form a second mesh pattern, and the first mesh pattern and the second mesh pattern are combined with each other to form a third mesh pattern.

Provided are a transparent base material film laminate that is used by being arranged on the viewing side of a polarizing plate of an image display device having a backlight light source and the polarizing plate, the laminate having a first transparent base material film and a second transparent base material film, in which a Re of the first transparent base material film is 4,000 nm or more, the laminate is arranged for use such that an angle formed between a slow axis of the first transparent base material film and an absorption axis of the polarizing plate is 45&#xb0;&#xb1;20&#xb0; and such that an angle formed between a slow axis of the second transparent base material film and the absorption axis of the polarizing plate is 90&#xb0;&#xb1;30&#xb0; or 0&#xb0;&#xb1;30&#xb0;, an angle formed between the slow axes of the first transparent base material film and the second transparent base material film is neither 0&#xb0; nor 90&#xb0;, and the second transparent base material film is used by being arranged on the viewing side with respect to the first transparent base material film.

Transparent base material film laminate, touch panel sensor film, touch panel, image display device, and method for improving visibility of image display device

Growing community of inventors

Kanagawa, Japan

Reona Ikeda