Bonding device and bonding method for attaching curved cover plate with irregular shape to flexible screen

A bonding method for attaching a curved cover plate with an irregular shape to a flexible screen, comprising:

• providing a flexible screen, a curved cover plate with an irregular shape, and a bonding device for attaching the curved cover plate with the irregular shape to the flexible screen, wherein the curved cover plate with the irregular shape comprises a flat area and arc hook areas located on both sides of the flat area, and the arc hook areas smoothly transit with the flat area, the bonding device comprises:
• a first bonding body having a first pressing wall on a periphery of the first bonding body and a first pressing flat wall, the first pressing wall comprising a first pressing curved wall matching shapes of inner surfaces of the arc hook areas of the curved cover plate with the irregular shape and the first pressing flat wall provided continuously with the first pressing curved wall to correspond to a portion of the flat area of the curved cover plate with the irregular shape;
• a second bonding body having a second pressing wall formed on a periphery of the second bonding body and a second pressing flat wall, the second pressing wall comprising a second pressing curved wall matching shapes of inner surfaces of the arc hook areas of the curved cover plate with the irregular shape and a second pressing flat wall provided continuously with the second pressing curved wall to correspond to a portion of the flat area of the curved cover plate with the irregular shape;
• a pressing body pressing a center portion of the flat area of the curved cover plate with the irregular shape, the pressing body being located between the first bonding body and the second bonding body, and the pressing body having a third pressing flat wall configured to press the center portion of the flat area of the curved cover plate with the irregular shape on a periphery thereof;
• and
• a driving mechanism driving the first bonding body and the second bonding body to move to be adjacent or away from the pressing body,
• wherein the first bonding body, the second bonding body, and the pressing body each have a vacuum cavity therein configured to absorb the flexible screen;
• the bonding device further comprises:
• a first telescopic connector configured to connect the pressing body and the vacuum cavity of inner of the first bonding body, both ends of the first telescopic connector are fixed to the pressing body and the first bonding body respectively and is compressed until the pressing body adjoining the first bonding body;
• and
• a second telescopic connector configured to connect the pressing body and the vacuum cavity of inner of the second bonding body, both ends of the second telescopic connector fixed to the pressing body and the second bonding body respectively and being compressed until the pressing body adjoining to the second bonding body;
• attaching the flexible screen onto outer sides of the first bonding body, the pressing body, and the second bonding body, thus obtaining an initial body;
• inserting the initial body into an inner side of the curved cover plate with the irregular shape and pressing the initial body, completing attaching a portion of the flat area of the curved cover plate with the irregular shape to the flexible screen;
• and
• driving the driving mechanism to drive the first bonding body and the second bonding body to move along a direction towards the hook arc areas, respectively, until completing attaching the curved cover plate with the irregular shape to the flexible screen.