ELECTRICALLY-HEATED WINDOW SHEET MATERIAL

摘要

An electrically-heated window sheet material includes a heatable transparent conductive film, and bus bars for supplying electricity to the transparent conductive film. The bus bars includes left and right bus bars connected to left and right edges of the transparent conductive film. The transparent conductive film includes a band-shaped first region interposed between the left and right bus bars, a band-shaped second region interposed between the left and right bus bars, and openings provided in the first region. A distance between the left and right bus bars is shorter in the first region than in the second region. The openings are arranged so that a current flowing in the first region from one of the left and right bus bars to the other of the left and right bus bars is bypassed at least once by the openings.

主权项

1. An electrically-heated window sheet material comprising:
a heatable transparent conductive film; and a plurality of bus bars for supplying electricity to the transparent conductive film; wherein the plurality of bus bars include
a left bus bar connected to a left edge of the transparent conductive film, anda right bus bar connected to a right edge of the transparent conductive film; wherein the transparent conductive film includes
a band-shaped first region interposed between the left bus bar and the right bus bar,a band-shaped second region interposed between the left bus bar and the right bus bar, anda plurality of openings provided in the first region; wherein a distance between the left bus bar and the right bus bar is shorter in the first region than in the second region; and wherein the plurality of openings are arranged so that a current flowing in the first region from one of the left and right bus bars to the other of the left and right bus bars is bypassed at least once by the openings.