DEVELOPMENT AND PERFORMANCE EVALUATION OF A HIGH-EFFICIENCY MICRO LED DISPLAY USING PLANARIZATION AND ELECTRODELESS SHIELDING TECHNIQUES

Abstract

This paper presents the development and performance evaluation of a novel micro LED display achieved through innovative planarization and electrodeless shielding techniques. The study focuses on achieving uniform forward voltages across the entire display panel, ensuring consistent performance and optimal light output. Through meticulous measurement and analysis, the study demonstrates impressive results, with variations of only 2.7% in column pixels and 1.08% in row pixels. Additionally, the micro LED display exhibits remarkable luminance capabilities, achieving a brightness of 430 nits when biased at a pulse-width modulated voltage (PWM) with a frame rate of 105 Hz and a duty cycle of 1/32. Furthermore, the display showcases outstanding power efficiency, with an output power reaching 847 μW at a direct current (DC) of 3 mA. These findings underscore the potential of the developed micro LED display for various applications, including consumer electronics, automotive displays, and augmented reality/virtual reality (AR/VR) systems, where high brightness, efficiency, and uniformity are paramount.