Content last revised on November 12, 2025
Sharp LQ043Y1LX01 | A Robust 4.3" WQVGA Display for Demanding Industrial HMIs
The Sharp LQ043Y1LX01 is an industrial-grade 4.3-inch TFT-LCD engineered for applications where visual clarity, reliability, and performance under challenging conditions are non-negotiable. It delivers a precise balance of resolution, brightness, and ruggedness, making it a premier choice for next-generation Human-Machine Interfaces (HMIs), portable diagnostic tools, and control systems.
Key Performance Highlights
The LQ043Y1LX01 is not just another display; it's an engineering component designed for long-term industrial deployment. Its value is rooted in a specific combination of features:
- Optimal Resolution: A 480x272 (WQVGA) resolution provides crisp, clear graphics and text on a compact 4.3-inch screen, ideal for focused user interfaces without the overhead of higher pixel densities.
- Superior Readability: With a brightness of 500 cd/m² and an 800:1 contrast ratio, this display excels in a variety of ambient lighting conditions, from factory floors to field environments.
- Exceptional Viewing Angles: Symmetrical 80/80/80/80 viewing angles ensure consistent image quality and color fidelity, even when viewed from significant off-axis positions—a critical feature for multi-user or awkwardly mounted HMIs.
- Industrial-Grade Durability: An operating temperature range of -20°C to 70°C and a storage range of -30°C to 80°C confirm its suitability for unconditioned environments where commercial displays would fail.
Technical Specifications at a Glance
For engineers requiring quick access to core data, the following table summarizes the key performance metrics of the Sharp LQ043Y1LX01.
| Parameter | Specification |
|---|---|
| Manufacturer | Sharp |
| Screen Size | 4.3 inches |
| Resolution | 480(RGB)×272, WQVGA |
| Brightness | 500 cd/m² (Typical) |
| Contrast Ratio | 800:1 (Typical) |
| Viewing Angle | 80/80/80/80 (Left/Right/Up/Down) |
| Signal Interface | Parallel RGB (1 ch, 8-bit) + SPI |
| Backlight Technology | WLED |
| Operating Temperature | -20°C to 70°C |
| Touch Panel | None |
Application-Driven Engineering Value
The true strength of the LQ043Y1LX01 lies in how its technical specifications solve real-world engineering problems across various sectors.
- Portable Medical Devices: In handheld patient monitors or diagnostic equipment, the wide viewing angles and high contrast are critical for medical professionals who need to read vital data quickly and accurately from any orientation. Its robust temperature range ensures reliable operation in ambulances or field clinics.
- Industrial Control Panels: For machine controllers and process automation systems, the 500-nit brightness cuts through the glare common in factory settings. This direct-viewability improves operator efficiency and reduces errors, a key consideration explored in guides on sunlight-readable HMIs.
- Marine Electronics: On a boat's helm, where space is tight and reliability is paramount, this compact and rugged display provides essential navigation or system data. Its proven durability withstands the temperature fluctuations and vibrations common in marine environments.
- Specialized Test & Measurement Equipment: The straightforward Parallel RGB interface simplifies integration with a wide range of microcontrollers, reducing development time for specialized test rigs and portable measurement instruments.
Frequently Asked Questions (FAQ)
1. How does the WQVGA resolution benefit my design compared to a higher-resolution display?
While higher resolutions have their place, the WQVGA (480x272) format on a 4.3" screen offers an optimal balance. It delivers excellent clarity for GUIs, icons, and text without requiring the significant processing power and memory bandwidth of HD displays. This allows for the use of more cost-effective microcontrollers, simplifies firmware development, and lowers overall system power consumption—a key advantage in battery-powered or thermally constrained designs.
2. What are the integration considerations for the Parallel RGB + SPI interface?
This dual interface provides flexibility. The Parallel RGB interface is a standard, high-speed method for transmitting display data, supported by numerous graphics controllers. The additional SPI (Serial Peripheral Interface) channel is typically used for initializing the display controller and configuring settings, which simplifies the hardware connection by reducing pin count for control signals. For a broader understanding of display technologies, the ultimate guide to TFT-LCDs provides foundational knowledge.
For specific integration questions, pricing, or to discuss how the Sharp LQ043Y1LX01 can enhance your next project, please contact our technical team for expert consultation.
