COG LCD Module 128x128 Dot Matrix Display with STN Gray Positive Screen and 3.3V Logic for Industrial Applications

This COG (Chip-on-Glass) 128×128 dot matrix LCD module features an STN gray positive display mode, designed for reliable performance in industrial and embedded system applications. With a compact structure and integrated driver IC, it delivers stable image quality, low power consumption, and high durability in demanding environments.

• Display Format: 128×128 dot matrix resolution
• LCD Technology: STN (Super Twisted Nematic), Gray Positive mode
• Module Type: COG (Chip-on-Glass) integrated design
• Logic Voltage: 3.3V compatible for modern embedded systems
• Viewing Performance: High contrast with stable grayscale rendering
• Low Power Consumption: Optimized for battery-powered and energy-efficient devices
• Industrial Reliability: Suitable for long-term continuous operation

The COG architecture integrates the driver IC directly onto the glass substrate, significantly reducing module thickness and improving mechanical stability. This design minimizes external connections, enhances reliability, and allows for a more compact final product design.

The RYG128128A is a square-format 128x128 dot matrix LCD module. Featuring STN technology with a gray positive display mode (black dots on gray background), it delivers clear, low-glare viewing under any lighting condition. Driven by the high-performance ST7541 controller (COG package), it supports 1/128 duty and 1/12 bias, operates at a low 3.3V logic voltage for minimal power consumption. The standard FPC interface is compatible with 6800/8080-series MPUs for easy system integration. Integrated white LED backlight ensures excellent visibility in low-light environments. Its robust construction and wide operating temperature range make it an ideal display solution for Industrial HMI, portable medical devices, test instruments, and advanced consumer electronics.