| 摘要 |
The present invention relates to a multilayer polyester film, and a manufacturing method thereof. According to the present invention, the polyester film comprises a first polyester layer, a second polyester layer, and a third polyester layer, which are formed by being extruded and elongated at the same time by a coextrusion process. The polyester film has enhanced optical characteristics, high heat resistance, and low oligomer eluting characteristics, thereby being useful as a substrate for an ITO, a substrate for a silver nanowire, a substrate for a metal mesh, and a substrate of a prism for an LCD backlight unit. |
