This document contains information provided by Densitron International about their 240 x 320 graphics LCD module. It includes specifications, dimensions, and precautions for using the module.
The LM4755 is a 240 × 320 dot matrix graphics LCD module that integrates a liquid crystal display, CMOS driver, Seiko Epson SED1335 controller, printed circuit board, metal frame, and LED backlight. It supports various liquid‑crystal fluid types (NTN, NTN‑H, FSTN, FSTN‑H) and optional on‑board voltage generation or temperature compensation circuits.
The document lists the module's mechanical dimensions, electrical ratings, backlight parameters, timing characteristics, and recommended handling procedures. Key limits include a maximum cable length of 30 cm, strict ESD precautions, and specific power‑up sequencing to avoid latch‑up. Detailed pin‑out and block diagram information aid integration with host MPUs.
| Display format | 320 × 240 dots |
|---|---|
| Package dimensions | 165.5 mm × 109.0 mm × 17.0 mm |
| Dot size | 0.345 mm × 0.345 mm |
| Operating temperature | -20 °C – +70 °C |
| LED backlight input voltage | 5.0 V – 6.0 V rms |
The recommended maximum cable length is 30 cm.
The module can operate from –20 °C to +70 °C.
The module uses an LED backlight, with options for white or trans‑reflective types.