Display module, method for manufacturing display module, and laser machining method

A laser machining method comprising:

• forming a through-hole in a processing object comprising a first layer and a second layer of which a thermal deformation temperature is higher than a thermal deformation temperature of the first layer,
• wherein the forming of the through-hole comprises:
• performing a first irradiation process of irradiating a first laser beam to the first layer along a first boundary;
• performing a second irradiation process of irradiating a second laser beam to the first layer along a second boundary after the performing of the first irradiation process;
• and
• performing a third irradiation process of irradiating a third laser beam to the second layer along the second boundary,
• wherein a time interval between the first irradiation process and the second irradiation process is different from a time interval between the second irradiation process and the third irradiation process.