Transflective LCD Panel with Rough Dielectric Layer for Viewing Angle

The patent applies curvature by forming convex portions on the dielectric layer surface. These convex portions have curved surfaces that reflect ambient light at specific angles, directing the reflected light toward the user's viewing position. This curved surface design transforms the flat reflective electrode into a structured optical element that actively controls light direction, thereby improving both reflection efficiency and viewing angle simultaneously

The patent applies local quality by creating convex portions with specific geometric parameters (height h, width w, and slant angle α) at specific locations on the dielectric layer. Each convex portion is designed with optimized dimensions to control the reflection angle of incident light. This localized structural modification allows different regions of the display to have optimized optical properties, improving reflection efficiency without requiring complete structural redesign

The patent applies parameter changes by optimizing the geometric parameters of the convex portions (height h, width w, slant angle α) to achieve the desired optical performance. By carefully selecting these parameters, the patent ensures that the convex portions can be formed using standard semiconductor fabrication techniques such as photolithography and etching. The parameter optimization allows the rough structure to be manufactured with existing process capabilities, minimizing the increase in manufacturing complexity