Panasonic commercialises transparent conductive film combining low resistance and high transmissivity


The Panasonic Corporation has commercialised a double-sided full wiring transparent conductive film combining low resistance and high transmissivity, using its unique roll-to-roll construction method for the first time in the industry.

Recently, touch displays with a higher image quality and larger size require a transparent conductive film with improved properties, which has led to the on-going development of a metal mesh. The ordinary etching method for manufacturing a metal mesh allows the production of a metal mesh with a larger size and lower resistance, but poses a problem whereby the wiring in the metal mesh is visible.

Panasonic's original roll-to-roll construction method has achieved a wiring width of 2μm, which was difficult to attain with conventional etching methods, and also achieved a high aspect ratio, thus offering a transparent conductive film combining low resistance and high transmissivity. In addition, this method allows full wiring on both surfaces of the film, thus achieving high coordinate accuracy and the use of fewer materials. The newly developed film will meet customers' needs for a touch display with a higher image quality, larger size, and reduced environmental impact.

Panasonic's new transparent conductive film has the following features:

  1. Achieving a high wiring aspect ratio to contribute to the production of a display with higher image quality and larger size
  2. Double-sided full wiring that offers high coordinate accuracy and improved flexibility
  3. Contributing to the reduction of environmental impact by reducing display’s power consumption and using fewer materials

Suitable applications include in-vehicle displays, touch sensors for consumer use, transparent antennas, back planes of transparent displays, transparent heaters, etc.

Caption: Metal mesh type transparent conductive film (photo: Panasonic, Feb 2022)

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