Content last revised on November 20, 2025
LQ190E1LW02 Technical & Application Deep Dive: A 19.0-inch SXGA+ Display for Industrial Systems
Product Overview: High-Detail Imaging for Demanding Environments
The Sharp LQ190E1LW02 is a 19.0-inch a-Si TFT-LCD module engineered for applications demanding superior image clarity and detail. It delivers a high-resolution SXGA+ display through a streamlined dual-channel LVDS interface, simplifying integration into complex systems. Its key specifications include: 1400x1050 Resolution | 300 cd/m² Brightness | 700:1 Contrast Ratio. This panel provides exceptional detail fidelity and wide, symmetrical viewing angles. For system designers needing to render complex schematics or diagnostic imagery without pixelation, the LQ190E1LW02's pixel density is a critical enabler. With its combination of high resolution and standard connectivity, this display is an optimal choice for upgrading legacy industrial HMI and medical imaging systems.
Application Scenarios & Value
System-Level Benefits in Process Control and Medical Diagnostics
The primary value of the LQ190E1LW02 lies in its ability to render fine details with precision, a non-negotiable requirement in specialized professional environments. Consider the challenge for an engineer designing a Human-Machine Interface (HMI) for a multi-axis CNC machining center. The interface must simultaneously display intricate CAD previews, real-time tooling paths, and critical system diagnostics. The 1400x1050 SXGA+ resolution of the LQ190E1LW02 provides the necessary canvas to present this dense information clearly, reducing operator error and improving workflow efficiency. What is the benefit of its 700:1 contrast ratio? It ensures clear differentiation between subtle grayscale levels, which is crucial for interpreting medical imaging scans or detailed industrial inspection data.
This display's performance characteristics make it a strong candidate for:
- Industrial Process Control Panels
- Medical Diagnostic Stations (non-diagnostic grayscale imaging)
- Air Traffic Control Displays
- Test and Measurement Equipment
While the LQ190E1LW02 is ideal for high-detail SXGA+ requirements, for systems where a standard SXGA resolution is sufficient, the G190ETN01.4 offers an alternative in a similar 19.0-inch form factor.
Key Parameter Overview
Decoding the Specs for System Integration
The technical specifications of the LQ190E1LW02 are tailored for straightforward integration and reliable visual performance in controlled environments. The parameters below highlight its core capabilities.
| Optical & Display Characteristics | |
|---|---|
| Panel Size | 19.0 inch |
| Resolution | 1400(RGB)×1050, SXGA+ |
| Brightness | 300 cd/m² (Typ.) |
| Contrast Ratio | 700:1 (Typ.) |
| Viewing Angle | 85/85/85/85 (Typ.) (CR≥10) |
| Display Colors | 16.7M (8-bit) |
| Interfacing & Mechanical Specifications | |
| Signal Interface | LVDS (2 ch, 8-bit), 30-pin connector |
| Backlight System | 4 pcs CCFL with external inverter required |
| Surface Treatment | Antiglare, Hard coating (3H) |
| Operating Temperature | 0 ~ 50 °C |
Note: The information presented here is a summary. Engineers must consult the official datasheet for complete specifications, performance curves, and integration guidelines.
Download the LQ190E1LW02 datasheet for detailed specifications and performance curves.
Technical Deep Dive
Understanding the Dual-Channel LVDS Interface
A key enabler of the LQ190E1LW02's high-resolution performance is its dual-channel, 8-bit LVDS Interface. For system designers, this is more than just a connector type; it dictates the data handling architecture. A single-channel LVDS link lacks the bandwidth to drive an SXGA+ resolution at standard refresh rates. By employing a dual-channel configuration, the panel effectively doubles the data throughput, allowing it to smoothly render 1400x1050 pixels with a full 16.7 million colors. This architecture is crucial for maintaining signal integrity over longer internal cables while minimizing electromagnetic interference (EMI)—a common challenge in densely packed industrial enclosures or sensitive medical equipment.
Think of the contrast ratio as the display's dynamic range for vision. A 700:1 ratio is like the difference between a newspaper photo, where blacks are a muddy grey, and a professional gallery print, where deep blacks make the bright areas pop. This high contrast is essential for discerning subtle gradients and ensuring text and lines are maximally legible, directly impacting user performance and reducing eye strain during long operational periods.
Frequently Asked Questions (FAQ)
What is the primary advantage of the 1400x1050 SXGA+ resolution over more common XGA or SXGA displays?
The key advantage is a significant increase in pixel density. For a 19.0-inch panel, SXGA+ provides approximately 36% more pixels than SXGA (1280x1024) and 77% more than XGA (1024x768). This directly translates to sharper text, finer lines, and the ability to display more information on the screen without scaling, which is critical for complex user interfaces in heavy machinery and diagnostic tools.
Does the LQ190E1LW02 require an external backlight inverter?
Yes. The display utilizes a 4-piece Cold Cathode Fluorescent Lamp (CCFL) backlight system. This design requires a separate, external inverter to supply the high voltage necessary to power the lamps. Engineers must factor the selection and placement of a compatible inverter into their system design and power budget.
To further explore display technologies and their applications, consider reading about the fundamentals of TFT-LCDs or how they are engineered for specific markets like marine environments.
