Method for continuously manufacturing liquid crystal display panel and inspection method

A method for continuously manufacturing a liquid crystal display panel, comprising:

• a manufacturing step that comprises cutting a first long polarizing plate to form a first polarizing plate while feeding the first long polarizing plate from a first polarizing plate roll and bonding the first polarizing plate to first side of a liquid crystal cell which is being fed, and
• cutting a second long polarizing plate to form a second polarizing plate while feeding the second long polarizing plate from a second polarizing plate roll and bonding the second polarizing plate to second side of the liquid crystal cell which is being fed in such a manner that absorption axis of the first polarizing plate and absorption axis of the second polarizing plate are perpendicular to each other, so that a liquid crystal display panel is manufactured;
• and
• an inspection step of optically inspecting the liquid crystal display panel being fed, wherein
• the manufacturing step and the inspection step are performed on a continuous feeder for feeding the liquid crystal cell and the liquid crystal display panel, and
• the inspection step comprises:
• applying a line-shaped light beam from one side with respect to the feeder to the liquid crystal display panel being fed by the feeder, wherein the line-shaped light beam is parallel to a width direction of the feeder;
• and imaging a region irradiated with the line-shaped light beam in the liquid crystal display panel, wherein the imaging is continuously performed in a line pattern parallel to a width direction of the feeder and performed at a position that is on another side with respect to the feeder and tilted at a predetermined angle to a feed direction of the feeder or a direction opposite thereto with respect to a direction in which the line-shaped light beam is applied.