International Display Workshops General Incorporated Association

11:30 AM - 11:50 AM

[PRJ4-3] Single Panel LCD Projector with High Uniformity

*Wei Ting Chen1, Pei Yu Lin1, Jui Wen Pan1 (1. National Yang Ming Chiao Tung University (Taiwan))

LCD projector, hotspot, uniformity

https://doi.org/10.36463/idw.2023.0817

Our single-panel LCD projector utilizes a direct-lit LED array with Fresnel lenses for light collimation. LED array arranged hexagonally for uniform light distribution on LCD panel. Extending optical distance between LED units and LCD panel eliminates hot spots, enabling sufficient light mixing. Köhler illumination ensures adequate and homogeneous screen illumination. Our design achieves 43.8% optical efficiency and 90.1% uniformity.