Sharp LQ190E1LW42 | High-Contrast SXGA Display for Industrial & Medical Applications
The Sharp LQ190E1LW42 is a 19.0-inch a-Si TFT-LCD panel engineered for applications where visual precision and long-term reliability are non-negotiable. With its classic 5:4 aspect ratio and high-density SXGA resolution, this display provides the clarity and detail required for complex data visualization in industrial control systems, medical diagnostic equipment, and specialized ATM interfaces. It is a purpose-built solution designed for sustained performance in demanding professional environments.
Engineered for Visual Fidelity and Durability
At the core of the LQ190E1LW42's performance is a combination of resolution, color depth, and robust backlighting technology. These features are not merely specifications but foundational elements that deliver tangible benefits in critical applications.
- Precision SXGA Resolution: The 1280x1024 pixel format provides a significant advantage over standard XGA displays, rendering complex schematics, detailed medical imagery, and fine-text user interfaces with exceptional sharpness.
- Superior Color Accuracy: Leveraging an 8-bit color driver, the panel can display 16.7 million colors, covering a substantial portion of the NTSC color gamut. This ensures true-to-life image reproduction, which is vital for applications like medical imaging where color nuances can be critical for diagnosis.
- High-Reliability WLED Backlight: The integrated WLED backlight system is rated for 50,000 hours of operation, ensuring consistent brightness and color temperature over an extended product lifecycle. This design minimizes maintenance overhead and reduces the total cost of ownership, a key consideration for industrial deployments. The inclusion of an onboard LED driver simplifies system integration.
Technical Deep Dive: Key Engineering Advantages
The Sharp LQ190E1LW42 is defined by engineering choices that optimize it for its target applications. Its symmetric wide viewing angles and standard LVDS interface are prime examples of this design philosophy.
The panel's typical viewing angle of 80 degrees in all directions (horizontal and vertical) ensures that visual information remains consistent and color-accurate even when viewed from off-axis. This is a critical feature in collaborative environments, such as a medical consultation room or a factory control station, where multiple operators may need to view the screen simultaneously without color shift or contrast degradation. Furthermore, the use of a standard 2-channel, 8-bit LVDS Interface provides a robust, high-bandwidth connection that is common across industrial motherboards and single-board computers, streamlining the design-in process and ensuring excellent signal integrity. For a broader understanding of the technology, our guide on TFT-LCD from basics to industrial applications offers valuable context.
Key Parameters of the LQ190E1LW42
The following table provides an at-a-glance summary of the key performance metrics for system integrators and design engineers. For exhaustive details, you can Download the Datasheet.
| Parameter | Specification |
|---|---|
| Screen Size | 19.0 inch |
| Resolution | 1280(RGB)×1024 [SXGA] |
| Panel Technology | a-Si TFT-LCD |
| Brightness | 350 cd/m² (Typ.) |
| Contrast Ratio | 800:1 (Typ.) |
| Viewing Angle | 80/80/80/80 (Typ.)(CR≥10) |
| Color Depth | 16.7M (8-bit) |
| Backlight System | WLED, 50,000 hours with LED Driver |
| Signal Interface | LVDS (2 ch, 8-bit), 30-pin connector |
| Operating Temperature | 0 ~ 50 °C |
Application Suitability and Competitive Positioning
The Sharp LQ190E1LW42 is purpose-built for environments that value detail and reliability over widescreen aspect ratios. Its 5:4 format is ideal for legacy software and specialized user interfaces common in factory automation and medical devices.
When selecting a display, it is crucial to match the panel's specifications to the application's primary requirements. For instance, while a display like the G190ETN01.4 offers a similar 19.0-inch diagonal, its 1280x1024 (WXGA+) resolution and 16:10 aspect ratio are better suited for different use cases, such as information displays that benefit from a wider format. The LQ190E1LW42, with its higher vertical resolution and 5:4 aspect ratio, excels in tasks requiring detailed, top-down process views or the display of squared medical images (e.g., from X-ray or CT scanners) without distortion or wasted space. Proper industrial display maintenance is key to maximizing the lifespan of these high-performance panels in any setting.
Frequently Asked Questions (FAQ)
Q: Is the WLED backlight user-replaceable?
A: The WLED backlight unit is designed as an integral part of the LCD module with a long lifespan of 50,000 hours, which typically aligns with the operational life of the host equipment. It is not designed for field replacement. For applications requiring extreme longevity beyond this, please contact our technical team to discuss alternative solutions or system-level design strategies.
Q: What are the primary advantages of the 5:4 aspect ratio in a modern industrial setting?
A: While widescreen formats are popular, the 5:4 aspect ratio remains highly relevant. It is ideal for retrofitting older systems that were designed for this format, avoiding software redevelopment costs. Furthermore, for applications like process control SCADA systems or air traffic control displays, the increased vertical space is more efficient for displaying square-like diagrams, extensive data logs, and vertical information flows compared to wider formats.
