Siemens SMD21302D (SMD 21302 D) 20.8 Inch LCD Monitor. Siemens SMD 21302 D 3 MPixel grayscale flat panel displays meets the demanding requirements of Medical Imaging with the advantages of digital flat panel technology. The display features high contrast and high gray level reproduction fidelity and stability. The gamma curve is exactly matched to CIE/DICOM recommendation. Siemens continuous backlight control circuitry ensures light output stability throughout the product's lifetime. This model has been discontinued by the manufacturer, limited availability.