Multilayer Optical Films for Optical Systems

Abstract: a display system () for capturing a finger print () includes a display panel () with pixels regularly arranged at an average pitch p1. the display system () includes a multilayer optical film () including microlayers () disposed between a structured first major surface () and a second major surface (). the structured first major surface () includes a plurality of structures () having an average largest lateral dimension d, d<p1 or d≥2p1. the structures () are regularly arranged at an average pitch p2 of greater than about 40 microns and have an average maximum height h of about 1.5 microns. for a normally incident light and a visible wavelength range and an infrared wavelength range, and each of orthogonal first and second in-plane polarization states, the microlayers () reflect greater than 60% of the incident light in the visible wavelength range, and transmits greater than 30% of the incident light for at least a first infrared wavelength.

Inventor(s): Yang Liu

CPC Classification: G02F1/133555 (Structural association of cells with optical devices, e.g. polarisers or reflectors)

Search for rejections for patent application number 20250189845