To realize a method for manufacturing an electrooptical device that securely parting a plurality of substrates used for the electrooptical device along parting lines.
The method for manufacturing the electrooptical device is a method for parting at least two stuck substrates used for the electrooptical device along the parting lines. The method includes a sticking process of sticking a 1st substrate and a 2nd substrate which has a plurality of grooves or one wide groove formed on one surface within a specified width along a parting line on the surface of the 2nd substrate where the plurality of grooves or one groove is formed and a parting process of parting the 1st and 2nd stuck substrates by making a crack along the parting line on the opposite surface from the surface of the 1st substrate which is stuck on the 2nd substrate.
Fujitsuna Hideyoshi
Osamu Suzawa