Chinese LCD module manual describing specifications, pinout, commands and interface options for the LCMxxZK series.
The Qingyun Innovation LCMxxZK series are graphic‑dot matrix LCD modules with built‑in Chinese character ROM. They support multiple display sizes (e.g., 64×32, 128×64) and can show Chinese characters, ASCII symbols and graphics simultaneously. The modules operate from 2.7 V to 5.5 V and offer both parallel (8‑bit/4‑bit) and serial (3‑line/2‑line) interfaces.
The manual provides detailed electrical parameters, pin descriptions, command tables for basic and extended instruction sets, and example wiring with an 80C51 MCU. It also lists backlight options (yellow‑green, blue, white) and how to adjust brightness via external resistors. This manual is written in Chinese.
| Display resolution (LCM6432ZK) | 64 × 32 pixels |
|---|---|
| Display resolution (LCM12864ZK) | 128 × 64 pixels |
| Supply voltage | 3 V or 5 V (selected by resistor) |
| Supply current (no backlight) | 1.2 mA at 3 V, 2 mA at 5 V |
| Character ROM | 8192 Chinese characters (16×16) + 128 alphanumeric (16×8) |
It has a 128 × 64 pixel screen that can show four lines of eight Chinese characters each.
The modules can be powered at either 3 V or 5 V, selected by a resistor on the board.
Four groups of 16 × 16 dot‑matrix characters can be programmed via the CGRAM.
Both parallel (8‑bit or 4‑bit) and serial (3‑line or 2‑line) interfaces are available.