Jiang, Yuwei; Feng, Yingqi; Ren, Tao; Yang, Wenyu; Tian, Li; Wang, Hui; Zhu, Yongxin; Huang, Zunkai

IEEE EMBEDDED SYSTEMS LETTERS

2025, 6,

Jiang, Yuwei; Feng, Yingqi; Ren, Tao; Yang, Wenyu; Tian, Li; Wang, Hui; Zhu, Yongxin; Huang, Zunkai

Liquid Crystal on Silicon (LCoS) technology utilizing phase-only modulation offers a wide range of applications. Efficient management of high-speed data flow and complex logic control is crucial for driving LCoS chips. This work presents an FPGA-based control system based for a 2460 x 1620, 120 Hz LCoS phase modulator. We propose a bandwidth efficient data mapping method by multiplexing the HDMI transmission protocol. The system supports full-resolution display and facilitates real-time projection. Compared to previous implementation schemes, the proposed system achieves a lower power consumption per pixel, as low as 5.70 nW. Additionally, the driven LCoS chip achieves an improved flipping rate of 1.22 kHz. This work demonstrates the effectiveness and feasibility of the proposed system for LCoS applications, providing a robust platform that can be adapted to various implementations.