Improving holographic display performance of LC-SLMs through symmetric light source reconstruction

To address the "grid" effect in liquid crystal spatial light modulators (LC-SLMs) and improve the quality of reconstructed images, we propose and experimentally validate a symmetric reconstruction compensation method for light sources, designed to optimize the uniformity of light energy distribution in LC-SLM-based holographic displays. By systematically analyzing the intensity distribution and positional variations of reconstructed images, our approach integrates a multi-light source configuration into the display system. This design effectively balances the light energy distribution, leading to more uniform reconstruction results. Experimental results demonstrate that this method significantly enhances the performance of SLM-based holographic displays, offering promising potential for applications across diverse imaging and display fields.