A LAMINATE STRUCTURE AND A DEVICE COMPRISING A SUBSTRATE MANUFACTURED BY USING SAME

摘要

The present invention relates to a laminate and an element manufactured thereby. The laminate comprises a first polyimide resin layer between a carrier substrate and a second polyimide resin layer. The coefficient of expansion (CTE) of the first polyimide resin layer in the temperature range of 100-200 deg. C is the same as or lower than the CTE of the second polyimide resin layer in the same temperature range. The second polyimide resin layer can be easily separated from the carrier substrate without a laser or light irradiation process since the adhesive force of the first polyimide resin layer on the second polyimide resin layer is reduced by physical stimulus not occurring the chemical change of the first polyimide resin layer; thereby easily manufacturing the element having the polyimide resin layers, such as a flexible display element. Also, the present invention can manufacture the element with more improved and reliable characteristics by preventing the reliability degradation or defects of the element caused by the laser or light irradiation.