Display Substrate Barrier Walls for Punch-Induced Crack Containment

The patent divides the display substrate into distinct functional zones: an effective display area, a punch area for camera placement, and a critical area separating them. By segmenting the structure and introducing barrier walls in the critical area, the patent prevents crack propagation from the punch area to the effective display area, thus maintaining encapsulation reliability while enabling camera placement flexibility.

The patent introduces barrier walls as intermediary structures in the critical area between the punch area and effective display area. These barrier walls act as mediators that intercept and block crack propagation paths, preventing cracks from extending from the cut punch area into the effective display area, thereby eliminating the harmful effect of crack propagation while maintaining ease of manufacture.

The patent applies barrier walls selectively only in the critical area where crack propagation risk exists, rather than throughout the entire substrate. This localized approach provides the necessary crack blocking function to improve encapsulation reliability while minimizing the increase in device complexity by limiting the additional structures to only where they are needed.