High-Resolution OLED Pixel Structure for Stray Light Control

The patent extracts and removes the shadow mask component from the manufacturing process. Instead of using a shadow mask to define patterns, the invention directly forms island-shaped organic layers through photolithography, eliminating the mask and its associated alignment and resolution limitations.

The patent replaces the mechanical shadow mask system with a photolithographic system. Instead of physically blocking light with a mask, the invention uses photoresist materials and UV light exposure to define patterns, achieving higher resolution through optical methods rather than mechanical masking.

The patent introduces a resin layer as an intermediary component between the organic light-emitting layers and the surrounding environment. This resin layer with higher refractive index acts as an optical mediator that guides and confines light, reducing stray light while maintaining high aperture ratio for brightness.

The patent applies different refractive index properties to different regions of the display structure. The resin layer surrounding the organic layers has a higher refractive index than the organic layers themselves, creating local optical quality differences that confine light within specific regions and reduce stray light propagation.

The patent introduces a sacrificial layer that is formed before the organic layers and provides protective cushioning during subsequent processing steps. This sacrificial layer absorbs mechanical stress and protects the fragile organic layers from damage during manufacturing, ensuring higher reliability.

The sacrificial layer acts as an intermediary protective element between the processing equipment/structures and the organic layers. It provides a buffer zone that prevents direct contact between potentially damaging processing elements and the sensitive organic light-emitting materials.