Polarization Selective Transparent Electrode With Patterned Metal for the 3D Display Pixel

Abstract

We propose a polarization selective transparent electrode (PSTE) utilizing a rectangular-shaped metal nano-wire structure. The performance of the PSTE was evaluated with simulation based on finite element method (COMSOL Multiphysics). Parametric studies have been carried out to give a guide for geometric parameter selection to meet the requirement of the target application. According to the studies, 70 nm by 800 nm rectangular metal grid, having a thickness of 100 nm and linewidth of 30 nm were recommended to keep higher than 61% transmittance, 24 dB extinction ratio, and lower than 5 Ω/sq sheet resistance. As an application of PSTE, a design idea about crosstalk reduction of the passive stereoscopic 3D display is proposed by presenting its pixel structure employing the proposed PSTE. The light extraction efficiency of the proposed pixel employing PSTE structure was also evaluated and compared to the structure employing the lossless ITO (Indium Tin Oxide), by measuring extracted light output power from incoherently distributed dipole sources excited in the emission layer. Degradation of the extraction efficiency below 14 percent point was expected compared to the lossless ITO for all the primary color wavelength range.

Keywords

• 3D-display
• patterned metal
• polarizer
• transparent electrode