No. Item Specification 1Display typePM OLED 2Display size 1.54 inch(Diagonal) 2Display mode Passive Matrix 3Display colorMonochrome (White/Yellow) 4Number of Pixels128x64 5Active area 35.056(W) Ã? 17.52(H) mm 6Panel size 45.24(W) Ã? 29.14(H) Ã? 2.0(D) mm 7Pixel pitch0.274(H) x 0.274(V) mm 8Pixel Size0.258(H)x 0.258(V) mm 9Viewing angleAll 10Brightness150 cd/m2 11Interface 8-bit 68XX/80XX Parallel, 4-wire SPI, I2C 12Controller IC SSD1305 13Contrast Ratio2,000 14Operating temperature -30ºC~+85ºC 15Storage temperature-40ºC~+90ºC Wide temperature with wide viewing angle, no need for backlight.