Crystal-Tech Electronics are a Distributor and European office for Visionox’s wide range of PMOLEDs. Posted on December 5, 2017June 3, 2020 by ADMIN_CRYSTAL Crystal-Tech Electronics are a Distributor and European office for Visionox’s wide range of PMOLEDs. We offer “on loan” demo kits, fast samples and highly competitive prices. Please request our latest brochure and equivalents list.