Patent ID: 8801881

Claim:
A method of producing a flat panel display comprising an optical laminate wherein two optical elements are adhered to each other via an adhesive sheet or a curable resin layer, which comprises the following step 1-step 4, or step 1-step 5, and permits reuse of at least one of the optical elements after step 4 or step 5 as an optical element in step 1: step 1: a step of adhering two optical elements to each other via an adhesive sheet or a curable resin layer, and applying an autoclave treatment to give an optical laminate step 2: a step of checking the appearance of the optical laminate obtained in step 1 step 3: a step of assembling a flat panel display using the optical laminate that passed the check in step 2 step 4: a step of separating the two optical elements in an optical laminate that was rejected by the check in step 2 by relatively rotating them with a vertical line penetrating the opposing faces thereof as a rotation axis step 5: a step of washing the optical elements resulting from step 4, and wherein the relative rotation of the optical elements in step 4 comprises accelerating in the initial motion and rotating the two optical elements after the initial motion at a rate of not less than 0.01 (degrees/sec) and less than 50 (degrees/sec).