Content last revised on October 27, 2025
LQ150X1DG12 | Sharp 15.0" XGA Industrial TFT-LCD | CCFL Backlight
An Engineering-Focused Overview of the LQ150X1DG12
Reliable Display Performance for Legacy System Integration
The Sharp LQ150X1DG12 is a 15.0-inch a-Si TFT-LCD panel engineered for long-term service in industrial applications where reliability and compatibility are paramount. Delivering a crisp 1024x768 XGA resolution, this display is defined by its robust CCFL backlight system and standard digital interface, ensuring seamless integration into existing equipment. Key specifications include: 15.0-inch Diagonal | 1024x768 XGA | CCFL Backlight. It provides proven operational stability and straightforward system integration. Featuring a Parallel RGB (2 ch, 6-bit) interface, the panel simplifies connectivity for a wide range of industrial controllers. For maintaining legacy industrial HMIs or control systems originally designed with CCFL technology, this panel's native format provides a drop-in ready solution, minimizing costly redesigns.
Application Scenarios & Value
System-Level Benefits for Legacy Equipment and Control Panels
The primary value of the LQ150X1DG12 lies in sustaining the operational life of deployed industrial systems. Consider an engineer tasked with repairing a mid-2000s CNC machine or a factory process control HMI. The original display has failed, and a modern LED-backlit panel would require a significant and costly re-engineering of the system's power supply and control signals. The LQ150X1DG12 directly addresses this challenge. Its integrated CCFL backlight system is designed to work with the high-voltage inverters common in these legacy systems, making it a functional, form-fit replacement. This preserves the original system architecture, drastically reducing downtime, validation efforts, and total cost of ownership. The standard XGA resolution also ensures that graphical user interfaces render correctly without software modification. For new designs prioritizing lower power and a slimmer profile, the LED-backlit G150XNE-L01 offers a contemporary alternative.
Technical Deep Dive
Understanding the Role of the CCFL Backlight in System Design
The use of a Cold Cathode Fluorescent Lamp (CCFL) as the backlight source is a defining characteristic of the LQ150X1DG12. While modern displays have largely transitioned to LEDs, CCFL technology offers distinct advantages in specific contexts. It provides stable and consistent brightness across a wide operating temperature range, a critical factor for industrial environments. The technology is mature and well-understood, leading to highly predictable performance and failure modes over long operational lifetimes. Integration requires an external CCFL inverter, which acts like a ballast for the lamp, converting the system's low DC voltage to the high AC voltage needed to ignite and sustain the lamp's glow. This separation of the display and its high-voltage driver can simplify thermal management within the panel assembly itself and allows for greater flexibility in system layout.
Key Parameter Overview
A Functional Breakdown of Core Specifications
The following parameters define the operational capabilities of the LQ150X1DG12, providing the essential data for system design and integration.
| Feature Category | Specification | Value |
|---|---|---|
| Display Characteristics | Panel Size | 15.0 inch |
| Resolution | 1024(RGB)×768, XGA | |
| Display Technology | a-Si TFT-LCD, Normally White, Transmissive | |
| Surface | Antiglare, Hard coating | |
| Contrast Ratio | 300:1 (Typ.) | |
| Interface & Electrical | Signal Interface | Parallel RGB (2 ch, 6-bit) |
| Backlight System | CCFL (Requires external inverter) | |
| Input Voltage | 5.0V (Typ.) | |
| Mechanical & Environmental | Operating Temperature | 0 ~ 50 °C |
| Storage Temperature | -25 ~ 60 °C |
Frequently Asked Questions
Engineering Inquiries on Integration and Performance
What are the integration requirements for the CCFL backlight system on the LQ150X1DG12?
To power the CCFL backlight, a compatible external inverter is required. This component is not integrated into the display module and must be sourced separately. The inverter's specifications must match the voltage and current requirements of the CCFL lamp to ensure proper brightness, stability, and operational life. What is the primary benefit of its CCFL backlight? Stable and predictable performance in legacy industrial systems.
Is the LQ150X1DG12 a suitable replacement for other 15-inch XGA panels?
It is a strong candidate, particularly for systems originally equipped with CCFL displays. However, engineers must verify three key areas for compatibility: the mechanical dimensions and mounting points, the 60-pin Parallel RGB connector pinout, and the electrical characteristics of the existing signal source. What makes this panel ideal for legacy systems? It matches the established CCFL power architecture, avoiding redesign.
To further evaluate the LQ150X1DG12 for your specific application, reviewing the official datasheet is critical for complete performance curves and mechanical drawings. For a deeper understanding of the technology, explore The Ultimate Guide to TFT-LCD or the general TFT-LCD technology overview provided by Wikipedia.
