LCM12864-LM is a graphic dot matrix liquid crystal display module produced by Beijing Qingyun Hi-Tech Development Co., Ltd. The module adopts STN display characteristics, positive display, half transparent, 6-point drive method, control IC ST7565R, and backlight method is white side backlight.
This document describes the Qingyun Innovation LCM12864-LM graphic LCD module, covering its physical dimensions, electrical characteristics, and functional features such as STN display, white side backlight and ST7565R controller. It includes detailed sections on pin assignments, block diagrams, application circuits, and programming sequences.
The guide also offers initialization procedures, command tables, logic address mapping, and safety precautions for handling, storage and operation of the module in various environmental conditions. This manual is written in Chinese.
| Overall dimensions | 92.0 mm × 81.7 mm × 11.0 mm |
|---|---|
| Visible area | 65.5 mm × 38.0 mm |
| Display area | 60.78 mm × 32.94 mm |
| Dot matrix | 128 × 64 dots |
| Dot size | 0.45 mm × 0.49 mm |
| Working temperature range | -20 °C to 70 °C |
| Storage temperature range | -30 °C to 80 °C |
| Supply voltage (VDD‑VSS) | 3.3 V |
| Backlight forward voltage (white) | 3.3 V |
The module can operate from –20 °C up to 70 °C.
It may be stored between –30 °C and 80 °C.
The LCD driver requires a 3.3 V supply (VDD‑VSS).
The white backlight forward voltage is 3.3 V.