Patent ID: 8603288

Claim:
A process for performing a planarization treatment of pressure-sensitive adhesive (PSA), comprising: positioning a first substrate onto a support surface of a planarization tool; placing at least one layer of PSA onto the first substrate; positioning a second substrate onto the layer(s) of PSA; selecting a predetermined duration of time based on a desired level of flatness for a flattened PSA; applying a pressure to the second substrate via a flexible membrane for the predetermined duration of time to form the flattened PSA, said pressure being applied in a generally uniform, unidirectional and localized manner, wherein the applied pressure flattens the PSA between the first substrate and the second substrate to form the flattened PSA; removing the flattened PSA from the planarization tool and the second substrate; and removing the second substrate from the planarization tool; and adhering the flattened PSA to a display component in a subsequent rigid-to-rigid lamination process after removal of the flattened PSA from the planarization tool and the second substrate.