DM12864J-3 is a graphic dot matrix liquid crystal display, the working voltage is +5V±10%, and it can bring negative voltage required for driving LCD. It has a full-screen dot matrix, the dot matrix is 128(columns)×64(rows), and can display 8(/rows)×4(rows) (16×16 dot matrix) Chinese characters, and also complete the display of graphics and characters.
The DM12864J-3 is a graphic dot‑matrix LCD module with a 128 × 64 pixel resolution. It uses a dynamic driving scheme with separate row and column drivers, and supports both LED and EL backlights. The module is packaged in a COB soft‑seal format, providing a long service life and reliable connections via conductive rubber and a pressure frame.
The document provides mechanical dimensions, pin functions, electrical characteristics, and handling precautions. It also includes timing diagrams, register descriptions, and recommended power‑up sequences to ensure proper operation and avoid damage to the module. This manual is written in Chinese.
| Display resolution | 128 × 64 pixels |
|---|---|
| Dot pitch | 0.92 mm × 0.92 mm |
| Operating voltage (VDD) | +5 V ±10 % |
| Supply voltage range (VDD) | -0.3 V to +5.5 V |
| LCD driving voltage (VEE) | -10 V |
| Storage temperature | -30 °C to +80 °C |
| Module size (W × H × T) | 93 mm × 70 mm × 10 mm (max 13.5 mm) |
| Backlight options | LED (red, green, blue, white) or EL |
The module provides a full‑dot matrix of 128 columns by 64 rows, i.e., 128 × 64 pixels.