| 摘要 |
<p>A mother glass substrate is continuously heated by a first laser spot LS1 to a temperature which is lower than a softening point of the mother glass substrate, along a scribe line formation line SL on a surface of the mother glass substrate, along which a scribe line is to be formed, while an area close to the first laser spot LS1 is continuously cooled along the scribe line formation line SL; and an area which is close to the cooled area and is on an opposite side to the first laser spot LS1 is continuously heated by a second laser spot LS2 along the scribe line formation line SL to a temperature which is lower than the softening point of the mother glass substrate. <IMAGE></p> |
