To provide a front glass plate for a display which shows little distortion of a see-through image by inhibiting formation of stripe patterns resulting from a flat plane residual stress and decreasing the flat plane residual stress value, and a process and an apparatus for manufacturing the glass plate.

The front glass plate G for the display is positioned at the front of a flat display panel D and is thermally toughened to yield the plane residual stress value of ≤±1.0 MPa. The front glass plate is manufactured employing the specific process and apparatus.