REC001601BYPP5N00000 is an OLED (Organic Light Emitting Diode) alphanumeric display manufactured by Raystar, with 16 characters across 1 row, and a viewing window size of 66x16mm. It functions by emitting light through the organic material used in the display, with no need for a backlight like traditional LCD displays. The OLED technology allows for improved contrast, brighter/more vibrant colors, and wide viewing angles. This type of display is usually used in applications where a small, slim form factor is needed, such as mobile phones, home appliances, wearable technology, and industrial/automotive devices.