Curved plastic panel and method and device for processing the same

A processing device of a curved plastic panel, comprising a hot pressing and curving device;

• wherein the hot pressing and curving device comprises:
• an upper die with variable curvature, said upper die has a plurality of areas;
• a lower die with variable curvature, said lower die has a plurality of areas;
• a plurality of upper heaters;
• a plurality of upper temperature sensors;
• a plurality of lower heaters;
• and
• a plurality of lower temperature sensors;
• wherein, the plurality of the upper heaters and the plurality of the upper temperature sensors are distributed in each area of the upper die;
• the plurality of the lower heaters and the plurality of the lower temperature sensors are distributed in each area of the lower die;
• the upper die and the lower die are matched correspondingly, and curvatures of the upper die and the lower die can be adjusted at least locally;
• the hot pressing and curving device is used to process a hot pressing and curving process of a flat plastic substrate in the following steps:
• adjusting the curvatures of the upper die and the lower die to be flat, and sandwiching the flat plastic substrate between the upper die and the lower die, and using the plurality of the upper heaters and the plurality of the lower heaters to heat the flat plastic substrate to a predetermined temperature, and using the plurality of the upper temperature sensors and the plurality of the lower temperature sensors to sense and monitor the temperature of each area of the flat plastic substrate in order to maintain the temperature of each area of the flat plastic substrate at the predetermined temperature;
• adjusting the curvatures of the upper die and the lower die to a first curvature, such that the flat plastic substrate sandwiched between the upper die and the lower die is processed by the upper die and the lower die into the curved plastic substrate with the first curvature;
• in the meantime, the plurality of the upper temperature sensors and the plurality of the lower temperature sensors continue to sense and monitor that the temperature of each area of the curved plastic substrate with the first curvature is maintained at the predetermined temperature;
• and
• adjusting the curvatures of the upper die and the lower die to a second curvature, such that the curved plastic substrate sandwiched between the upper die and the lower die is processed by the upper die and the lower die into the curved plastic substrate with the second curvature;
• in the meantime, the plurality of the upper temperature sensors and the plurality of the lower temperature sensors continue to sense and monitor that the temperature of each area of the curved plastic substrate with the second curvature is maintained at the predetermined temperature;
• wherein the second curvature is larger than the first curvature;
• wherein the hot pressing and curving device further comprises a plurality of cameras for capturing curvature images of the upper die and the lower die, in order to determine whether the curvature of the curved plastic substrate has reached a predetermined curvature.