Content last revised on January 11, 2026
LMG6911RPBC-E: Engineering Grade 240x128 Graphic LCD Module
Product Overview: Clarity and Integration for Demanding HMIs
A Technical Introduction to the LMG6911RPBC-E
The LMG6911RPBC-E is a high-contrast monochrome graphic LCD module engineered for applications demanding clear, reliable visual output and straightforward system integration. This display delivers a crisp 240 x 128 pixel resolution on a 5.7-inch diagonal screen, utilizing advanced FSTN (Film compensated Super-twisted Nematic) technology for superior readability. Key specifications include an integrated controller IC and a high-luminance CCFL backlight. This combination provides two critical engineering benefits: significantly reduced development time and excellent performance in varied lighting conditions. For systems requiring a proven, easy-to-implement graphical interface for industrial controls, medical devices, or test equipment, the LMG6911RPBC-E provides a robust and efficient solution. With its integrated controller, this module is the optimal choice for embedded systems prioritizing rapid development and long-term display stability.
Key Parameter Overview
Decoding the Specifications for HMI Design
The technical specifications of the LMG6911RPBC-E are optimized for industrial and specialized equipment. Each parameter is selected to ensure reliable performance and ease of integration into existing and new product designs. The following table highlights the core metrics that design engineers should consider during the evaluation process.
| Feature | Specification |
|---|---|
| Display Technology | FSTN (Film Compensated STN) Positive, Transmissive LCD |
| Resolution | 240 x 128 Dots |
| Active Area | 131.9(W) x 70.3(H) mm |
| Outline Dimension | 170.0(W) x 100.0(H) x 11.0(D) mm |
| Pixel Pitch | 0.55 x 0.55 mm |
| Backlight | CCFL (Cold Cathode Fluorescent Lamp) |
| Controller IC | Integrated T6963C or Compatible |
| Interface | 8-bit Parallel Data Bus |
| Operating Temperature | 0°C to +50°C |
| Storage Temperature | -20°C to +60°C |
Application Scenarios & Value
System-Level Benefits in Industrial and Medical HMIs
The LMG6911RPBC-E is engineered to excel in applications where unambiguous data and graphical display are paramount. Its design provides tangible value in reducing both hardware complexity and software development overhead, making it a strategic choice for various Human-Machine Interface (HMI) applications.
Consider the design of a control panel for a mid-complexity piece of industrial machinery, such as a CNC milling machine or a packaging system. A key engineering challenge is to present operators with real-time status, operational parameters, and warning indicators in a format that is instantly understandable. The LMG6911RPBC-E's 240x128 resolution is perfectly suited for this task, offering ample screen real estate for combining text, icons, and simple graphics without overwhelming the user. The FSTN technology ensures high contrast and wide viewing angles, critical for readability on a busy factory floor where operators may be viewing the screen from off-center positions. The integrated controller and standard 8-bit parallel interface simplify the connection to a host embedded system, directly addressing the need for rapid prototyping and reliable production.
What is the primary benefit of its integrated controller? It dramatically simplifies the host processor's workload, managing display RAM and character generation internally. This module's feature set is also highly relevant for medical monitoring equipment and laboratory instrumentation, where data integrity and clear visualization are non-negotiable. For applications that may require a different form factor or feature set, the related LMG6912RPFC offers an alternative configuration to evaluate.
Technical Deep Dive
A Closer Look at the Integrated Controller and Parallel Interface
A significant engineering advantage of the LMG6911RPBC-E is its onboard display controller, which is compatible with the industry-standard T6963C. This integration is pivotal for design efficiency. Think of the controller as a dedicated co-processor for the display; it offloads the low-level tasks of pixel mapping, screen refreshing, and character generation from the main system microcontroller (MCU). This allows the primary MCU to focus on its core application tasks, resulting in a more responsive and robust system overall. For the design engineer, this translates into a simplified software architecture and a reduced bill of materials (BOM), as external driver logic is not required.
The communication is handled via an 8-bit parallel bus, a well-established and reliable interface method. This interface provides a balance between data transfer speed and ease of implementation. It is fast enough for the fluid rendering of text and graphics required by HMI applications, while being significantly less complex to debug and implement than higher-speed serial interfaces like LVDS. This makes the LMG6911RPBC-E an excellent choice for systems based on a wide range of 8-bit, 16-bit, or 32-bit microcontrollers, ensuring broad compatibility and a smoother design cycle.
Frequently Asked Questions (FAQ)
How does the integrated T6963C-compatible controller in the LMG6911RPBC-E simplify system design?
The integrated controller manages the display's frame buffer (VRAM), character generation, and command execution. This significantly reduces the burden on the host microcontroller, which only needs to send high-level commands and data. It simplifies firmware development, lowers the required processing power of the host system, and accelerates time-to-market.
What are the main considerations for powering the CCFL backlight on this module?
The Cold Cathode Fluorescent Lamp (CCFL) backlight requires a separate, dedicated high-voltage AC inverter to operate. This inverter is not built into the display module. Engineers must select an appropriate external inverter that matches the CCFL's voltage and current requirements to ensure proper brightness, stability, and lifespan.
Is the FSTN display technology suitable for outdoor or direct sunlight applications?
While FSTN technology provides excellent contrast and wider viewing angles compared to standard STN, this transmissive display is primarily designed for indoor industrial or controlled-lighting environments. For applications in direct sunlight, a display with higher brightness, transflective properties, or specific optical bonding would be necessary to ensure readability.
A Strategic Component for Long-Lifecycle Systems
The LMG6911RPBC-E represents a strategic choice for systems where reliability and design stability are as important as technical performance. Its use of proven FSTN and CCFL technologies, combined with a standard parallel interface, ensures a stable component choice for long-lifecycle industrial and medical products. Integrating this module into a system provides a clear pathway to a robust and effective user interface, minimizing design risks and ensuring consistent performance over the product's operational life.
