Glass plate having a heat generating function and a manufacturing method for the same

A glass plate comprising:

• a glass layer configured to include a coated area and an uncoated area;
• a heating layer configured to be coated on the coated area and to include a conductive material generating heat by receiving power;
• and
• two bus bars configured to extend along an extension direction, to be electrically connected to the heating layer to supply the power to the heating layer, and to be spaced apart from each other along a reference direction orthogonal to the extension direction,
• wherein the uncoated area includes a plurality of uncoated lines each of which has a length with respect to the reference direction, is continuously connected, and does not surround and divide the coated area,
• wherein the plurality of uncoated lines is disposed to be spaced apart along the extension direction,
• wherein each of the plurality of uncoated lines includes a plurality of uncoated patterns disposed to be spaced apart along the reference direction and connected to each other, and
• wherein each of the plurality of uncoated patterns is formed to include a plurality of reference lines extending along the reference direction and a plurality of extension lines extending along the extension direction and is formed as a single continuous line bent at least once.

A method of manufacturing a glass plate comprising:

• coating a heating layer on a coated area of a first glass layer including the coated area and the uncoated area to form a plurality of uncoated lines formed of a single line bent at least once;
• arranging bus bars to be in contact with the heating layer;
• sequentially stacking a thermoplastic polymer layer and a second glass layer on the heating layer;
• and
• bonding the stacked layers by pressing and heating,
• wherein each of the plurality of uncoated lines includes a plurality of uncoated patterns disposed to be spaced apart along the reference direction and connected to each other, and
• wherein each of the plurality of uncoated patterns is formed to include a plurality of reference lines extending along the reference direction and a plurality of extension lines extending along the extension direction and is formed as a single continuous line bent at least once.