LTB190E1-L01 Technical Review: A 19-inch SXGA LCD for Industrial System Integration
The Samsung LTB190E1-L01 is a 19.0" SXGA display engineered for streamlined integration into legacy and long-lifecycle industrial systems. With key specifications of 1280x1024 Resolution | 250 cd/m² Brightness | Dual-Channel LVDS Interface, it delivers a focused feature set prioritizing reliability and compatibility. This panel simplifies system design-in and ensures backward UI compatibility. It provides typical viewing angles of 70°/70° horizontally and 60°/60° vertically, suitable for fixed-mount operator interfaces. For industrial PCs or medical displays requiring a robust 5:4 aspect ratio panel, the LTB190E1-L01 offers a proven and readily integrated solution.
Key Parameter Overview
Decoding the Specifications for System Design-In
The technical specifications of the LTB190E1-L01 are tailored for straightforward implementation in established industrial and commercial applications. The parameters below provide the core data needed for initial engineering evaluation.
| Display Characteristics | |
|---|---|
| Screen Size | 19.0 inch |
| Resolution | 1280 (RGB) x 1024 [SXGA] |
| Aspect Ratio | 5:4 (H:V) |
| Pixel Pitch | 0.294(H) x 0.294(V) mm |
| Active Area | 376.32(H) x 301.056(V) mm |
| Optical & Electrical Performance | |
| Luminance | 250 cd/m² (Typ.) |
| Contrast Ratio | 700:1 (Typ.) |
| Viewing Angle | 70/70/60/60 (Typ.)(CR≥10) |
| Display Colors | 16.7M (6-bit + Hi-FRC) |
| Response Time | 5 ms (Typ.)(Tr+Td) |
| Interface Type | LVDS (2 ch, 8-bit) |
| Logic Board Power Supply | 5.0V (Typ.) |
| Mechanical & Environmental | |
| Module Size | 396(W) x 324(H) x 17.5(D) mm |
| Backlight | 4 pcs CCFL |
| Operating Temperature | 0 ~ 50 °C |
| Storage Temperature | -25 ~ 60 °C |
Download the LTB190E1-L01 datasheet for detailed specifications and performance curves.
Application Scenarios & Value
System-Level Benefits in Industrial and Medical HMIs
The LTB190E1-L01 is an optimal choice for applications where maintaining system integrity and avoiding costly re-certifications are paramount. Its value is most evident in the upgrade and maintenance of long-lifecycle equipment common in manufacturing and healthcare.
Consider the challenge of upgrading an aging process control system HMI. The original console was likely designed around a 5:4 CRT or an early LCD, and its UI software is hard-coded for that specific aspect ratio. The LTB190E1-L01's native 1280x1024 (SXGA) resolution provides a direct, pixel-perfect replacement. This enables a seamless upgrade that preserves the existing user interface, preventing extensive software redevelopment and re-validation cycles. Furthermore, its standard dual-channel LVDS interface simplifies the connection to modern single-board computers or existing industrial PCs. What makes the LVDS interface so effective? Think of it as a dedicated, multi-lane highway for pixel data. It uses paired lanes (differential signals) to move information reliably, preventing the electromagnetic interference that can corrupt an image, especially over longer cable distances inside machinery.
This focus on compatibility makes the panel a key enabler for extending the operational life of high-value capital equipment. While this model is excellent for legacy system upgrades, for new designs requiring a wider aspect ratio and Full HD resolution, the G215HAN01.0 could be evaluated for its different feature set.
Industry Insights & Strategic Advantage
The Role of 5:4 Displays in Long-Lifecycle Equipment
In an industry dominated by the 16:9 widescreen format, the continued availability of high-quality 5:4 displays like the LTB190E1-L01 provides a critical strategic advantage for specific sectors. Fields such as industrial automation, air traffic control, and medical imaging often rely on software and console hardware that have been standardized for decades. The cost to re-engineer, rewrite, and—most importantly—re-certify these systems to accommodate a different screen format can be prohibitive.
Sticking with the 5:4 aspect ratio is like keeping the same size and thread for a critical bolt on a classic car engine; using a different size would require re-engineering the entire mounting bracket and surrounding parts. The LTB190E1-L01 allows OEMs to service, upgrade, and continue producing their proven systems, maximizing return on the original investment and ensuring operational consistency. This approach dramatically improves the total cost of ownership (TCO) compared to a forced migration to widescreen formats, a key consideration explored in discussions of industrial vs. consumer displays.
Application Vignette
Integrating the LTB190E1-L01 into a Medical Imaging Workstation
An OEM of diagnostic imaging equipment faces a sourcing challenge for a workstation that displays grayscale medical images. The system's software is validated by regulatory bodies for SXGA resolution, and the physical console is precision-molded for a 19-inch, 5:4 display. Any change would trigger a lengthy and expensive re-approval process.
The LTB190E1-L01 is selected as the ideal solution. Its 1280x1024 resolution is a perfect match, eliminating any need for software changes. Its specified 700:1 contrast ratio provides the clear, discernible image quality needed for diagnostic review. The panel's standard LVDS interface connects directly to the workstation's existing graphics driver board with minimal engineering effort. The system-level benefit is immense: the OEM avoids a multi-year, multi-million-dollar re-engineering and re-validation project. They can continue to service their established imaging workstation, ensuring business continuity and customer satisfaction by providing a component that preserves the system's original, certified performance. This choice underscores the importance of component selection in managing the lifecycle of regulated equipment, a principle also highlighted by leading manufacturers like AUO.
Frequently Asked Questions (FAQ)
Engineering Questions on the LTB190E1-L01
What are the key details of the LTB190E1-L01's LVDS interface and power requirements?
The LTB190E1-L01 utilizes a standard 2-channel, 8-bit LVDS interface for data transmission, requiring a compatible controller. It connects via a 30-pin connector (e.g., Hirose DF14-30P-1.25H). The panel logic operates on a single +5.0V DC power supply, which simplifies the system's power delivery design. The CCFL backlight requires a separate, dedicated high-voltage inverter, which must be sourced or included in the system design.
This display uses a CCFL backlight. What does this mean for system design and longevity?
The use of a 4-lamp CCFL (Cold Cathode Fluorescent Lamp) backlight means the system design must incorporate a specific CCFL inverter to supply the necessary high AC voltage. While CCFLs typically have a shorter lifespan (e.g., 50,000 hours to half-brightness) compared to modern LEDs and can be more susceptible to cold-start performance, the technology is mature and well-understood. This makes maintenance straightforward, as replacement inverters and lamps are often available, aligning with the long-term serviceability goals for industrial equipment.
Requesting Further Information
To further evaluate the LTB190E1-L01 for your specific application, please contact our technical sales team. We can provide additional documentation and support to assist in your design-in process, ensuring your system achieves its performance and longevity targets.
