Touch Sensor Shielding for Polarizer Moisture Blocking

A shielding member (gas blocking layer) is introduced as an intermediary element between the crack blocking holes and the polarizing plate. This shielding member selectively blocks gas and moisture while allowing the crack blocking holes to maintain their structural function. The shielding member acts as a mediator that prevents the harmful transmission of gas and moisture through the holes without compromising the crack resistance provided by the holes.

The solution segments the functional requirements by separating the crack blocking function from the gas blocking function. The crack blocking holes provide structural segmentation to prevent crack propagation, while the shielding member provides a separate gas blocking layer. This segmentation allows each component to specialize in its primary function without interfering with the other.

The shielding member is designed to perform multiple functions within a single component. It serves as both a gas blocking barrier and an integral part of the touch sensor structure. By making the shielding member a multi-functional element that combines gas blocking with structural integration, the patent reduces the need for separate components, thereby limiting the increase in device complexity while maintaining improved reliability.

The shielding member is merged with the existing touch sensor layers, specifically being formed in conjunction with the interlayer insulating layer or passivation layer. This merging integrates the gas blocking function into the existing structural framework of the touch sensor, avoiding the addition of completely separate components and thus minimizing the increase in device complexity.