Content last revised on November 15, 2025
LT084AC37400: 8.4-inch SVGA Display for Industrial Reliability
Engineered for Operational Integrity in Challenging Field Conditions
The Toshiba LT084AC37400 is an 8.4-inch a-Si TFT-LCD module designed for applications where mechanical stability and consistent performance across a wide temperature range are critical design requirements. With a specification of 800x600 SVGA | -20 to 70°C Operating Temp | 320 cd/m² Brightness, this display provides a robust foundation for industrial human-machine interfaces (HMIs), control panels, and embedded systems. Its key benefits include a proven wide operating temperature range and a durable construction suitable for demanding environments. For engineers seeking a display that remains functional through thermal cycling and ambient environmental stress, the LT084AC37400 offers a field-proven solution, directly addressing the need for long-term operational resilience.
Key Parameter Overview
Operational Parameters for Demanding Environments
The technical specifications of the LT084AC37400 are selected to support consistent operation in non-climate-controlled settings. The parameters underscore the display's suitability for industrial-grade equipment where reliability is a primary consideration.
| Feature Category | Specification |
|---|---|
| Display Characteristics | 8.4-inch Diagonal a-Si TFT-LCD |
| Optical Performance | Resolution: 800(RGB)×600, SVGA Brightness: 320 cd/m² (Typ.) Contrast Ratio: 300:1 (Typ.) (TM) |
| Environmental Resilience | Operating Temperature: -20 ~ 70 °C Storage Temperature: -20 ~ 80 °C |
| Electrical Interface | LVDS (1 ch, 6-bit), 20 pins Connector |
| Illumination System | 1 pcs CCFL Backlight |
Industry Insights & Strategic Advantage
Meeting Industry Mandates for Durability and Uptime
In sectors like manufacturing automation, logistics, and public utilities, equipment uptime is directly tied to profitability and safety. The wide operating temperature range of the LT084AC37400, from -20 to 70°C, is not merely a number; it's an assurance of functionality. This thermal tolerance allows system integrators to deploy devices in outdoor kiosks, unheated warehouses, or factory floors without requiring complex and costly environmental control systems. This aligns with the industry trend of pushing computation and control closer to the operational point, where environmental conditions are often unpredictable. The display's resilience reduces the total cost of ownership by minimizing weather-related failures and expanding the potential deployment locations for critical HMI systems.
Application Scenarios & Value
Deployment Scenarios Where Reliability is Paramount
The design principles of the LT084AC37400 make it a strong candidate for systems that must withstand physical and thermal stress over long service lifetimes. Its value is most evident in applications where display failure could lead to significant operational disruption.
- Industrial Control Panels: On factory floors and in processing plants, the LT084AC37400 provides a clear, reliable interface for machine operators, capable of withstanding the temperature fluctuations common in such facilities.
- Test and Measurement Equipment: For portable or benchtop diagnostic tools used by field technicians, this display offers the durability needed to handle transport and operation in various service environments.
- Transportation Systems: In vehicle cabins or trackside control units, the display's temperature and vibration tolerance ensure consistent information delivery for operators.
- Legacy System Retrofits: The SVGA resolution and standard LVDS Interface make it a suitable candidate for upgrading older industrial machines, extending their operational life without requiring a complete system overhaul.
For systems that require a different form factor but similar ruggedness, the LT065AC57200 offers a 6.5-inch alternative. What is the primary benefit of its wide temperature specification? It enables direct deployment in uncontrolled environments, reducing system complexity and potential points of failure.
Technical Deep Dive
Anatomy of a Rugged Industrial Display
The LT084AC37400's resilience stems from its core construction using amorphous silicon (a-Si TFT) technology, a mature and reliable platform for industrial displays. The specified operating temperature range of -20 to 70°C is a critical parameter for designers of equipment destined for outdoor or harsh indoor use. This range ensures that the liquid crystal material will not freeze or overheat, which would otherwise lead to slow response times, image artifacts, or permanent damage. The contrast ratio of 300:1, while modest by consumer standards, provides sufficient clarity for the symbolic and numeric data typical in industrial UIs. This deliberate engineering choice prioritizes long-term stability and performance consistency over achieving the highest possible optical metrics, a key consideration for industrial versus consumer displays.
Intra-Series Comparison & Positioning
Positioning the LT084AC37400 in the Rugged Display Lineup
Within the broader market of industrial displays, the Toshiba LT084AC37400 occupies a specific niche. It is designed for SVGA-native systems that do not require high-definition resolution but place the highest premium on operational durability. Compared to modern high-brightness or full-HD panels, its key differentiator is its proven thermal performance and standard, easy-to-integrate LVDS interface. The choice of a CCFL backlight, while an older technology, is well-understood and offers predictable performance and failure modes over its lifetime, a crucial factor for maintenance planning in industrial settings. Its 320-nit brightness is adequate for indoor and shaded outdoor applications, positioning it as a workhorse for a wide range of standard industrial HMI tasks. For new designs requiring higher brightness or lower power consumption, engineers might explore LED-backlit alternatives.
Success Stories / Deployment Snippets
Field-Proven Performance in Harsh Conditions
While specific end-customer deployments are proprietary, the LT084AC37400 and displays with similar specifications are foundational components in established industrial product lines. They are frequently integrated into CNC machine controllers from leading manufacturers, where they endure constant vibration and exposure to coolant mists. Similarly, they have been used in agricultural vehicle guidance systems, functioning reliably through the heat of harvest and the cold of winter planting. These real-world deployments validate the datasheet specifications, providing system integrators with confidence in the display's long-term performance and its ability to maintain readability and function when it matters most. For environments with high ambient light, understanding the principles of sunlight-readable HMIs is a critical next step in system design.
To further evaluate if the LT084AC37400 meets the specific requirements of your application, please contact our technical sales team for a detailed review of your project parameters.
