Light Guide Structure Recesses for Display Panel Stress Relief

The patent introduces a cushioning cavity within the light guide structure at the location where paste materials are applied. This cavity acts as a buffer zone that absorbs thermal expansion and contraction stresses before they can concentrate in the paste materials. The cushioning cavity is designed with specific dimensions and positioning to ensure it effectively accommodates the dimensional changes of the paste materials during temperature variations, thereby preventing stress concentration and image sticking while maintaining reliable electrical connection.

The patent transforms the rigid fixed connection into a dynamic adaptable connection by incorporating the cushioning cavity. This cavity allows the paste materials to dynamically adjust their position and shape in response to thermal expansion and contraction. The cavity provides movement space that enables the paste materials to deform elastically without breaking the electrical connection, thus maintaining connection stability while preventing the rigid stress transfer that causes image sticking.

The patent applies local quality modification by introducing the cushioning cavity only at specific locations where paste materials are applied, rather than making the entire light guide structure flexible. The light guide structure maintains its overall rigid structure for mechanical strength, but locally incorporates the cushioning cavity that provides thermal deformation accommodation. This localized approach allows the structure to be both strong and adaptable to thermal changes.