DiDisplay construction 128*64 DOTS Display mode TN/STN Display type Positive Transflective Backlight LED, 5.0V Viewing direction 6 o´clock Operating temperature Indoor Driving voltage Single power Driving method 1/33 duty,1/6 bias Type COB (Chip On Board) Number of data line 8-bit parallel Connector Pin / ZEBRA Key Parameters Driver IC ST7920 / ST7921 Interface Parallel / SPI Backlight Blue Character Color White Character Set ASCII Dimension 93 * 70 * 13.5