Content last revised on November 21, 2025
LQ190E1LX51: Sharp 19.0" SXGA Industrial TFT-LCD for Legacy System Integration
The Sharp LQ190E1LX51 is a 19.0-inch a-Si TFT-LCD module engineered for seamless integration into specialized 5:4 aspect ratio systems, delivering exceptional visual clarity and operational longevity. Featuring a specification of 19.0-inch diagonal, 1280x1024 SXGA resolution, and a high brightness of 1000 cd/m², this display offers key benefits such as exceptional viewing angles for multi-personnel monitoring and a standard LVDS interface for simplified integration. It directly addresses the critical challenge of sourcing high-quality, non-widescreen displays for the modernization of legacy industrial and medical HMI systems. For upgrading 5:4 ratio industrial consoles, this 1280x1024 panel is the optimal choice for preserving UI integrity without costly software redevelopment.
Application Scenarios & Value
System-Level Benefits in Legacy Equipment Modernization
For systems engineers tasked with extending the life of critical industrial or medical equipment, the LQ190E1LX51 provides a direct, high-performance upgrade path. Consider the challenge of replacing a failing CRT or an early-generation LCD in a CNC machine controller or a medical imaging station. Much of this equipment has software and graphical user interfaces hard-coded to a 1280x1024 SXGA resolution. Attempting to fit a modern widescreen panel would result in image stretching, letterboxing, and a compromised user experience, often necessitating a complete and costly software overhaul. The LQ190E1LX51, with its native 5:4 aspect ratio, eliminates this obstacle entirely. It acts as a form-fit-function replacement, preserving the integrity of the original system software. The integration is further streamlined by its standard LVDS (2 channel, 8-bit) signal interface, which ensures compatibility with a wide array of industrial controller boards and minimizes engineering effort and system downtime.
The display's Normally Black, Transmissive mode and symmetrical viewing angles of 85/85/85/85 degrees ensure that critical information is presented with consistent color and clarity, regardless of the operator's viewing position. This is a decisive factor in environments where multiple operators may need to view the screen simultaneously. The WLED backlight system is rated for a long operational life, enhancing the overall reliability and reducing the total cost of ownership for the upgraded asset. For applications requiring a different form factor, the G150XNE-L01 offers a compact 15.0-inch XGA solution suitable for smaller control panels.
Key Parameter Overview
Decoding the Specs for Industrial Display Integration
The technical specifications of the Sharp LQ190E1LX51 are optimized for industrial environments that demand high performance and reliability. The following table provides a functional grouping of its key parameters.
| Display Characteristics | |
| Panel Size | 19.0 inch |
| Resolution | 1280(RGB)×1024, SXGA |
| Aspect Ratio | 5:4 (H:V) |
| Pixel Format | RGB Vertical Stripe |
| Active Area | 376.32 × 301.056 mm |
| Optical Performance | |
| Display Mode | ASV, Normally Black, Transmissive |
| Brightness | 1000 cd/m² (Typ.) |
| Contrast Ratio | 900:1 (Typ.) |
| Viewing Angle | 85/85/85/85 (Min.)(CR≥10) |
| Display Colors | 16.7M (8-bit) |
| Response Time | 12 (Typ.)(Tr+Td) ms |
| Interface & Electrical | |
| Signal Interface | LVDS (2 ch, 8-bit), 30 pins Connector |
| Panel Voltage | 5.0V (Typ.) |
| Backlight System | WLED, with LED Driver |
| Backlight Lifetime | 50,000 hours (Typ.) |
| Mechanical & Environmental | |
| Outline Dimensions | 404.2 × 330 × 34.0 mm |
| Operating Temperature | 0 ~ 60 °C |
| Storage Temperature | -20 ~ 60 °C |
Download the LQ190E1LX51 datasheet for detailed specifications and performance curves.
Frequently Asked Questions
Engineering-Focused Inquiries
What is the primary advantage of the LQ190E1LX51's 5:4 aspect ratio in modern applications?
Its primary advantage is providing a direct, plug-and-play upgrade path for legacy systems in industrial automation, medical imaging, and air traffic control. These systems often have software GUIs locked to the 1280x1024 resolution. Using this display avoids the significant cost and validation effort associated with rewriting software to accommodate modern widescreen formats.
How does the ASV (Advanced Super View) technology impact usability in an industrial HMI?
ASV, a type of wide-viewing-angle technology, is critical for usability as it ensures consistent image quality—including color, brightness, and contrast—from virtually any angle. In a factory setting where an operator might be moving around a machine, this means critical data remains readable without forcing the user into a specific, narrow viewing position, thereby reducing the potential for misinterpretation and operational errors.
Application Vignette
A Closer Look at Performance in Control System Upgrades
The Challenge: A specialized manufacturing facility operates a fleet of high-precision grinding machines controlled by consoles with aging 19-inch CRT displays. These displays suffer from dimness, screen burn-in, and frequent failures, causing significant production downtime. The control software is a proprietary system hard-coded for a 1280x1024 display resolution, and the manufacturer no longer supports it. A complete system replacement is quoted at over $100,000 per machine, making it financially unviable.
The Solution: The engineering team selects the Sharp LQ190E1LX51 as the core component for a display modernization project. The panel's native SXGA resolution and 5:4 aspect ratio perfectly match the software's required output, eliminating any need for software modification. The integration process involves designing a simple mounting bracket and connecting the display's standard 30-pin LVDS connector to a compatible controller that interfaces with the machine's legacy video signal.
System-Level Benefit: The successful upgrade provides a dramatic improvement in visual performance. The high brightness and contrast ratio deliver superior readability under the bright ambient light of the facility. This modernization not only resolves the immediate reliability issues but also extends the operational life of the expensive machinery for a fraction of the cost of a full replacement. The project highlights how a targeted component-level upgrade, enabled by the specific characteristics of the LQ190E1LX51, can deliver immense value and a rapid return on investment. For a comprehensive understanding of display technologies, explore The Ultimate Guide to TFT-LCD.
For engineering projects requiring a robust, high-performance display for legacy system modernization or new designs with specific 5:4 aspect ratio requirements, the Sharp LQ190E1LX51 offers a reliable and efficient solution. Contact our technical sales team to discuss your application needs and request a quote.
