The LT104AC54000 is a classic 10.4-inch SVGA LCD module from Toshiba Matsushita. It boasts a stable 800 x 600 resolution and is widely used in various control and monitoring systems.
Furthermore, the LT104AC54000 features a brightness of 350 cd/m² and high contrast output, coupled with a color depth of 262,144 colors (6-bit). This article will provide a comprehensive analysis of this display module from multiple perspectives, including specifications, advantages, structural principles, and industrial applications.
LT104AC54000 Technical Specs
The following is an overview of the key technical parameters of the LT104AC54000 LCD panel, including display performance, electrical characteristics, and environmental adaptability, to help you quickly understand the core specifications and application basis of this module.
Parameter | Value |
Brand | |
Model | LT104AC54000 |
Size | 10.4" |
Composition | LCM |
Resolution | 640(RGB)×480, VGA 76PPI |
Luminance | 800 cd/m² (Typ.) |
Contrast Ratio | 400:1 (Typ.) (TM) |
Viewangle | 70/70/55/65 |
Color Depth | 262K |
Light Source | 3 strings WLED , 70K hours , No Driver |
Interface Type | LVDS (1 ch, 6-bit) , 20 pins Connector |
Active Area | 215.1(W)×163.7(H) mm |
Pixel Format | RGB Vertical Stripe |
Frame Rate | 60Hz |
Touchscreen | Without |
Voltage Supply | 3.3V (Typ.) |
Weight | 620g (Typ.) |
Outline Size | 238.5 × 177.5 × 12 (H×V×D) |
Max Ratings | Operating Temperature: -30 ~ 80 °C ; Storage Temperature: -45 ~ 90 °C |
Refer to LT104AC54000 Datasheet PDF
LT104AC54000 Structure and Design
In terms of structure and design, the LT104AC54000 is composed of core components including the LCD panel, backlight system, and driving circuitry. The following provides a brief overview of its internal structure.
1. LCD Panel
The LT104AC54000 features a TFT-LCD panel with excellent pixel arrangement and clarity. Its design supports high-brightness display and uniform color reproduction, making it well-suited for industrial applications. The module surface is typically treated with an anti-glare coating to reduce reflections and glare, enhancing viewing comfort.
2. Backlight System
The module integrates a WLED backlight system, which is designed for easy replacement and maintenance. Combined with a Gamma voltage generator, the backlight ensures smooth grayscale transitions and meets the requirements of industrial control and instrumentation applications. Its design lifespan is ≥ 50,000 hours, suitable for long-term continuous operation.
3. Driving Architecture
The core of the LT104AC54000 is controlled by an integrated controller that processes input signals. External image signals are input via an LVDS interface and converted by an internal receiver into RSDS differential signals, which are then output to the LCD panel via the driver circuitry.
The module also integrates key control pins, such as DPS (Display Reversal Control) and SEL68A (Bit-Depth Selection), providing flexible installation and operational options for industrial equipment.
LT104AC54000 Advantages
The LT104AC54000 has multiple outstanding features and advantages, making it an excellent performer in the industrial display field. This section will outline the core advantages of this module from various perspectives.
l Wide Temperature Range: The module operates reliably within -30 ~ 80°C and can be stored between -45 ~ 90°C.
l High Brightness Display: With high-brightness performance, the display remains clear even under strong lighting conditions.
l WLED Backlight System: Integrated WLED backlighting provides uniform brightness with low power consumption.
l Extended Lifespan: The module is designed for a lifespan of ≥ 70,000 hours, meeting the long-term operation requirements of industrial equipment.
l Multi-Directional Viewing Support: Supports Up/Down and Left/Right screen reversal (U/D, L/R Reverse), providing flexibility for different installation orientations and viewing angles.
LT104AC54000 Industry Applications
The LT104AC54000 display is highly suitable for use in a variety of industrial environments. This section will introduce the module’s typical application scenarios across different industries.
1. Industrial Control HMI
The LT104AC54000 is highly suitable for human-machine interface (HMI) displays in industrial equipment, providing stable operation in factory workshops, automated production lines, or control cabinets, with real-time data and operational feedback.
l CNC machine control panels
l Injection molding machine screens
l Power distribution monitoring terminals
2. Automated Production Line Monitoring
The module can be used for production line status monitoring, process parameter display, and operation guidance, improving efficiency and safety in industrial operations.
l Assembly line control panels
l Packaging equipment status displays
l Robotic workstation screens
3. Industrial Instrument and Meter Displays
With high brightness and long lifespan, the LT104AC54000 is ideal for precision instruments and measurement devices, ensuring stable long-term data reading and analysis.
l Gas analyzer displays
l Flow meter LCD panels
l Temperature and humidity monitoring instruments
4. Transportation and Industrial Vehicles
Its high-temperature resistance and vibration durability make the LT104AC54000 suitable for industrial vehicles and transportation equipment displays, ensuring reliable information delivery in harsh environments.
l Forklift LCD control screens
l Rail transit monitoring terminals
5. Laboratory and Research Equipment Displays
The module’s high-precision display and reliable performance make it ideal for scientific experiments and testing equipment, providing a dependable visual interface for data analysis and experimental operations.
l Environmental monitoring instruments
l Laboratory control consoles
Maintenance & Troubleshooting
For the LT104AC54000, proper maintenance and precise troubleshooting are key to extending its lifespan. The following are core guidelines:
Backlight Aging and Replacement
l Identification: A slightly reddish screen, decreased brightness, flickering, or a completely black screen with an image visible when backlit are all signs of backlight aging.
l Recommendation: CCFL backlights are fragile and contain mercury; it's best to operate in a dust-free environment. Consider replacing them with an LED retrofit kit to reduce heat generation and improve brightness.
Inverter Matching
l Function: The inverter converts low-voltage DC to high-voltage AC (CCFL).
l Note: When replacing with a non-original inverter, the starting voltage and backlight current must be matched; otherwise, it will shorten the lifespan or trigger overheat protection. LED retrofits require a dedicated constant current driver board; never connect directly to the original high-voltage interface.
Image Troubleshooting
l Discoloration/Screen Flickering: First check if the LVDS cable is loose or oxidized. Cleaning the interface with an electronic cleaner can solve most problems.
l Dead Pixels: Physical dead pixels cannot be repaired. If the number of elements is small and does not obstruct the display of key data, the UI layout can be adjusted through HMI software to avoid replacing the entire screen.
ANDE Electronics: Reliable LCD Display Solutions
As a professional display supplier, Ande Electronics is committed to providing LCD modules that meet modern application needs.
We offer not only high-quality display products but also reliable technical support and flexible purchasing options. Our experienced engineering team works closely with customers to provide guidance on module selection, integration, and optimization.
Choosing Ande Electronics, then engineers and manufacturers will gain a partner focused on quality, innovation, and efficiency.
