Flexible LED Vehicle Display Screen With Bubble-Free PU Encapsulation

The patent removes the double-sided adhesive tape from the process entirely. Instead of using adhesive tape to fix the flexible screen to the mold bracket, the invention uses a clamp-based mechanical fixation system that holds the screen edges without requiring adhesive materials, thereby eliminating the risk of circuit damage associated with tape application and removal.

The patent introduces a clamp as an intermediary mechanical device between the flexible screen and the mold bracket. The clamp provides a secure fixation mechanism that distributes pressure evenly across the screen edges without direct adhesive contact, protecting the underlying circuits while maintaining production stability.

The patent applies a release agent to the lamp bead surface before dripping the PU glue. This preliminary action creates a non-stick layer that prevents the glue from adhering to the lamp bead surface, allowing bubbles to escape easily during the gluing process without becoming trapped in the gaps at the bottom of the lamp beads, while still achieving the desired waterproof effect.

The patent converts the potential harm of bubble formation into a benefit by using the release agent to control glue flow and bubble behavior. The release agent allows bubbles to rise and escape naturally during the gluing process, transforming what would be a defect into a controlled process feature that maintains both waterproof performance and appearance quality.

The patent eliminates the need for hard pulling during screen collection by removing the double-sided adhesive tape that would require forceful removal. The clamp-based fixation system allows for gentle, controlled removal of the screen from the mold without subjecting the circuit to damaging tensile forces.

The patent replaces the adhesive-based mechanical system with a clamp-based mechanical system. The clamp provides a secure hold during production but allows for easy, damage-free removal by simply opening the clamp, eliminating the need for forceful pulling that could damage the circuit.

The patent applies a release agent to the lamp bead surface before the glue dripping process. This preliminary step prevents bubble adhesion to the lamp beads, ensuring consistent appearance quality across all products while maintaining the efficiency of the automated glue dripping process without requiring additional manual intervention.

The release agent enables the glue and bubbles to self-manage during the dripping process. The bubbles naturally rise and escape without requiring external intervention, and the glue automatically forms a uniform waterproof layer, maintaining production efficiency while ensuring consistent appearance quality across all products.