Glass plate and manufacturing method thereof

A glass plate comprising:

• a first surface provided with a first film;
• and
• a second surface provided with a second film and opposite to the first surface,
• wherein each of the first film and the second film includes mainly tin oxide and has a sheet resistance value of 20 Ω/□ or less,
• wherein a film thickness of the first film is θ1 nm, and a film thickness of the second film is θ2 nm, and in the glass plate, a haze value measured from the first surface side for a configuration provided with the first film only is H1 (%), and a haze value measured from the second surface side for a configuration provided with the second film only is H2 (%),
• a value of θ1 divided by H1 (θ1/H1) is 500 or more but 1200 or less, and
• a value of θ2 divided by H2 (θ2/H2) is 300 or more but 750 or less,
• wherein the film thickness θ1 of the first film is within a range from 300 nm to 550 nm, and the film thickness θ2 of the second film is within a range from 250 nm to 550 nm,
• wherein the haze value H1 is within a range of 0.4% to 0.8% and the haze value H2 is within a range of 0.4% to 1.0%, and
• wherein the glass plate is a soda lime glass made by a float method and the second surface contacted a melted tin bath.

A manufacturing method of a glass plate in which films are provided on first and second surfaces that face each other, respectively, the method comprising:

• (i) forming, during manufacturing of a glass ribbon, a first film mainly including tin oxide, by a CVD method, on the first surface of the glass ribbon that is an opposite side to the second surface, the second surface contacting melted tin;
• and
• (ii) forming, after cutting the glass ribbon, on the second surface, by a CVD method, a second film mainly including tin oxide,
• wherein a film thickness of the first film is θ1 nm, and a film thickness of the second film is θ2 nm, and, in the glass plate obtained after the step (ii), a haze value measured from the first surface side for a configuration provided with the first film only is H1 (%), and a haze value measured from the second surface side for a configuration provided with the second film only is H2 (%),
• a value of θ1 divided by H1 (θ1/H1) is 500 or more but 1200 or less, and
• a value of θ2 divided by H2 (θ2/H2) is 300 or more but 750 or less.