NOVELTY - Manufacture of laminated material (6) involves laminating resin film (51) having Young's modulus (E1), thickness (t1), width (w1) and tensile strength (S1) and resin film (52) having Young's modulus (E2), thickness (t2), width (w2) and tensile strength (S2) at temperature (Tp) through a contact bonding layer. The ratio of tensile strength (S1) and tensile strength (S2) at 25 degrees C is 0.8-1.3, when magnitude correlation of E1x t1x w1 and E2x t2x w2 is inverted at 25 degrees C to Tp (excluding Tp). The distortion of resin film (51) and resin film (52) is each less than 0.1.    USE - Manufacture of laminated material for electronic device protection and electronic device (all claimed). Uses include but are not limited to electroluminescent element, liquid crystal display element, solar cell, and touch screen.    ADVANTAGE - The method enables manufacture of laminated material having excellent stability for long duration, without generation of delamination and wrinkle.    DETAILED DESCRIPTION - Manufacture of laminated material involves laminating resin film (51) having Young's modulus (E1), thickness (t1), width (w1) and tensile strength (S1) and resin film (52) having Young's modulus (E2), thickness (t2), width (w2) and tensile strength (S2) at temperature (Tp) through a contact bonding layer. The distortion of resin film (51) and resin film (52) is each less than 0.1. The ratio of tensile strength (S1) and tensile strength (S2) satisfies the relation: E1x t1asteriskw1 less than or equal to E2x t2x w2. The ratio of tensile strength S1 and tensile strength S2 at 25 degrees C to Tp (excluding Tp) is 0.6-1.5. The ratio of tensile strength (S1) and tensile strength (S2) at 25 degrees C is 0.8-1.3, when magnitude correlation of E1x t1asteriskw1 and E2x t2x w2 is inverted at 25 degrees C to Tp (excluding Tp).    DESCRIPTION OF DRAWING(S) - The drawing shows the schematic view of lamination process.    Laminated material (6)    Delivery rolls (11,12)    Support rolls (21,22)    Crimping rolls (31,32)    Resin films (51,52)