LTD056ET2S: Engineering a Compact 5.6-Inch WSVGA Display for Embedded Systems
Introduction to a Legacy of Clarity and Integration
The LTD056ET2S by Toshiba Matsushita is a 5.6-inch LTPS TFT-LCD panel engineered for applications demanding a compact footprint without compromising on resolution. Delivering a crisp WSVGA (1024x600) resolution, this display provides a high-pixel-density solution for detailed graphical interfaces. Its specification of 1024x600 resolution | 300 nits brightness | LVDS interface is paired with key benefits including a low-power WLED backlight and a standard digital interface. This panel answers the critical engineering need for integrating a higher-than-VGA resolution display into space-constrained designs, such as early portable diagnostic tools or specialized industrial terminals. For systems requiring a standard VGA resolution in a similar size, the related G057VN01 V2 is a relevant consideration.
Key Parameter Overview
Decoding the Specs for Seamless System Integration
The technical specifications of the LTD056ET2S are foundational to its role in embedded and industrial applications. The combination of a high-resolution LTPS panel with a standard interface provides a clear pathway for system integration. The use of an LTPS backplane, for instance, is a key enabler for achieving the WSVGA pixel density in such a compact 5.6-inch diagonal, a significant advantage over amorphous silicon (a-Si) technologies of its era. This allows for sharper text and more detailed image rendering, critical for complex user interfaces.
| Feature | Specification |
|---|---|
| Display Technology | LTPS TFT-LCD, TN, Normally White, Transmissive |
| Screen Size | 5.6 inch diagonal |
| Resolution | 1024(RGB)×600 (WSVGA) |
| Brightness | 300 cd/m² (Typ.) |
| Contrast Ratio | 400:1 (Typ.) |
| Viewing Angle (L/R/U/D) | 40/40/20/30 (Typ.) (CR≥10) |
| Interface Type | LVDS (1 channel, 6-bit) |
| Backlight System | WLED, Edge light type |
| Outline Dimensions (W×H×D) | 136.8 × 85.9 × 4.9 mm |
| Operating Temperature | 0°C to 50°C |
Download the LTD056ET2S datasheet for detailed specifications and performance curves.
Application Scenarios & Value
System-Level Benefits in Portable and Embedded HMI
The LTD056ET2S is best suited for legacy and specialized systems where a compact, high-resolution display is a primary design driver. Consider its application in a portable asset management scanner or an early automotive diagnostic tool. In these environments, operators require clear, readable information in a device that must remain lightweight and compact. The WSVGA resolution on a 5.6-inch screen provides a significant upgrade over the more common QVGA or VGA displays, allowing more data and finer graphical elements to be displayed without scrolling or menu diving. The standard LVDS Interface simplifies the electrical connection to a single-board computer or a custom controller, reducing engineering complexity and potential points of failure compared to parallel RGB interfaces. This streamlined integration makes it a valuable component for achieving a balance between information density and physical device constraints.
Technical Deep Dive
Implications of the LTPS and WLED Combination
The selection of Low-Temperature Polycrystalline Silicon (LTPS) for the TFT backplane was a deliberate engineering choice that directly influences the panel's performance. LTPS technology allows for smaller transistors and higher electron mobility compared to amorphous silicon. This is the core reason the LTD056ET2S can achieve a 211 PPI (Pixels Per Inch) density, resulting in sharper visuals. Think of it like the difference between drawing on coarse paper versus smooth Bristol board; the finer medium of LTPS allows for more detailed "pixel artwork." This higher mobility also means the panel can operate more efficiently, which, when paired with the WLED backlight, contributes to a lower typical power consumption of 1.4W. For designers of battery-powered or passively cooled devices, this efficiency is not just a benefit—it's a critical enabler for meeting thermal and power budgets without adding bulky cooling solutions.
Frequently Asked Questions (FAQ)
What is the primary benefit of the LTD056ET2S's WSVGA resolution in a 5.6-inch format?
The primary benefit is high information density. It allows for more detailed GUIs, sharper text, and reduced need for scrolling in compact human-machine interfaces (HMIs), directly improving user experience and operational efficiency in data-intensive applications.
How does the LVDS interface impact system design with the LTD056ET2S?
The LVDS interface significantly simplifies design by reducing the number of required signal lines compared to a parallel RGB interface. This leads to lower electromagnetic interference (EMI), a smaller connector footprint, and simpler board layout, which is particularly advantageous in compact or EMI-sensitive environments like medical or measurement equipment.
