TM070RDHG12: 7.0-inch WVGA Industrial TFT-LCD Module
Engineered for Environmental Resilience and Clear Visuals
The TM070RDHG12 from Tianma is a 7.0-inch WVGA display engineered for consistent performance across a wide industrial temperature range, ensuring operational reliability in demanding environments. This a-Si TFT-LCD module delivers a balanced combination of resolution, brightness, and ruggedness essential for modern Human-Machine Interface (HMI) applications. With key specifications of 7.0” Diagonal | 800x480 Resolution | 400 cd/m² Brightness | -20°C to 70°C Operating Temperature, it provides significant engineering benefits, including wide temperature reliability and clear visual output under various lighting conditions. For systems requiring consistent HMI performance in thermally dynamic industrial settings, the TM070RDHG12 offers a robust and dependable solution.
Application Scenarios & Value
Delivering System-Level Reliability in Demanding Environments
The true engineering value of the TM070RDHG12 is realized in applications where environmental conditions are a critical design constraint. Consider a control panel for agricultural machinery or an unheated factory floor HMI connected to a Programmable Logic Controller (PLC). These systems face significant temperature swings, from cold morning startups to high-heat operation. What is the key benefit of its -20°C to 70°C operating range? Uncompromised performance in thermally unregulated industrial environments. This wide operating window ensures the display remains fully functional without requiring complex and costly heating or cooling subsystems, directly reducing the bill of materials (BOM) and simplifying the overall system architecture.
Its 400-nit brightness and anti-glare surface treatment ensure that critical operational data is clearly legible, even in the variable lighting conditions found on a factory floor. This combination of thermal resilience and optical clarity makes the TM070RDHG12 a strategic choice for designers of industrial automation equipment, medical monitoring devices, and portable diagnostic tools where reliability is non-negotiable. For applications requiring a slightly larger display area with similar industrial characteristics, the related AT080TN64 offers an 8-inch alternative.
Key Parameter Overview
Decoding the Specifications for Industrial Integration
The technical specifications of the TM070RDHG12 are tailored for seamless integration into a wide array of embedded systems. The parameters below highlight its capabilities as a robust visual interface solution.
| Core Display Characteristics | |
| Screen Size | 7.0 inch (Diagonal) |
| Resolution | 800(RGB)×480, WVGA |
| Display Mode | TN, Normally White, Transmissive |
| Optical Performance | |
| Brightness | 400 cd/m² (Typical) |
| Contrast Ratio | 500:1 (Typical) |
| Viewing Angle | 70/70/60/70 (L/R/U/D) (Typ.) |
| Surface Treatment | Anti-Glare |
| Electrical & Interface | |
| Interface Type | Parallel RGB (1 ch, 6/8-bit) |
| Supply Voltage (VCC) | 3.3V (Typical) |
| Backlight | WLED, 20,000 hours (Typical) |
| Environmental & Mechanical Resilience | |
| Operating Temperature | -20°C to 70°C |
| Storage Temperature | -30°C to 80°C |
| Outline Dimensions | 164.9(W) × 100.0(H) × 5.7(D) mm |
Download the TM070RDHG12 datasheet for detailed specifications and performance curves.
Application Vignette
Ensuring HMI Uptime in a Variable-Temperature Warehouse
Imagine an automated guided vehicle (AGV) operating within a large logistics warehouse that has unheated loading docks. In winter, the AGV's HMI may start its shift at temperatures well below freezing, while later moving to warmer, climate-controlled sections of the facility. This thermal cycling is a major stressor for consumer-grade displays, often leading to slow response times, reduced brightness, or even complete failure. The TM070RDHG12 directly addresses this engineering challenge. Its -20°C operational floor means the display is ready to perform from a cold start, providing immediate, clear instructions to the operator or system. This is analogous to an industrial engine designed to start reliably in arctic conditions without a pre-heater. As the AGV moves through different temperature zones, the display's performance remains stable, ensuring that crucial information from the central embedded system is always available. This inherent robustness simplifies the AGV's design, enhances its operational reliability, and ultimately contributes to greater warehouse efficiency by minimizing downtime caused by component failure.
Frequently Asked Questions (FAQ)
How does the -20°C to 70°C operating temperature range directly benefit my system design?This wide temperature range allows the TM070RDHG12 to be deployed in environments without active climate control, such as outdoor kiosks, industrial control cabinets, or vehicle cabins. This eliminates the need for auxiliary heating or cooling components for the display, which reduces system complexity, lowers power consumption, and decreases the total cost of ownership (TCO).
Is the 400-nit brightness sufficient for applications with high ambient light?A brightness of 400 cd/m² combined with an anti-glare surface provides excellent readability in most indoor industrial and commercial environments. While not designed for direct, prolonged sunlight exposure, it is more than adequate for factory floors, control rooms, and indoor public spaces, ensuring clear visibility and reducing operator eye strain.
For more information or to discuss how the TM070RDHG12 can meet the specific requirements of your project, please contact our technical specialists for an in-depth evaluation.
