40X4 Character LCM - SJXD4004A（STN Negative）

40X4 Character LCM provides a wide four-line display format for equipment needing longer menus, parameter groups, alarms, and operating guidance on one screen. Its STN negative display, white LED backlight, 18PIN interface, and 3.3V/5V drive support clear visibility and stable integration. The 190.0x54.0mm module suits industrial controllers, test instruments, medical devices, power systems, terminals, and panels requiring detailed character output during monitoring, diagnostics, maintenance, and daily operation tasks.

Parameters:

• High contrast, wide-temperature operation
• Low power consumption, high anti-interference performance
• Support for multiple color combinations
• Provide a complete set of one-stop technical information and source code
• Supports customization
• Supports 1-3 day samples
• High quality and cost-effective
• The fastest batch delivery can be achieved within 15 days

Key Specifications

40X4 Character LCM is a large-format character display module built for equipment that needs more text capacity than standard two-line or 20×4 LCD modules. The SJXD4004A model provides a 40×4 character layout, allowing long menu names, operating values, warning information, and system instructions to appear with better continuity. It uses a 190.0×54.0×13.0 mm module outline and a 149.0×30.0 mm viewing area, giving designers a wider display window for complex panel information. The module supports 3.3V/5.0V drive voltage, AIP31068L driver IC, 18PIN interface, white LED backlight, STN Negative LCD type, 06:00 viewing direction, -20°C to +70°C working temperature, and -30°C to +80°C storage temperature.

Design Standards

40X4 Character LCM is designed for wider information presentation, stable electrical connection, and dependable use in equipment interfaces that require continuous text output. The 18PIN interface supports direct character LCD integration, making it suitable for control boards that need a proven hardware connection method. Its STN Negative display mode creates a dark-background visual effect, while the white LED backlight helps improve character visibility in instrument panels and industrial interfaces. The module also supports high contrast, wide-temperature operation, low power consumption, strong anti-interference performance, multiple color combinations, technical documentation, source code assistance, customization, 1–3 day sample testing, and fast batch delivery planning.

Applications

40X4 Character LCM is suitable for products that need to show long text strings, multiple parameter groups, or detailed status information on one screen. It can display machine menus, production data, alarm descriptions, service instructions, diagnostic codes, process steps, timer records, and system feedback across four wide rows. Common application fields include industrial controllers, testing instruments, automation equipment, medical devices, power systems, communication terminals, information display panels, household appliances, consumer electronics, and DIY development projects. Its 40×4 layout, large viewing area, STN Negative readability, and white backlight make it practical for control interfaces that need richer character output without using a graphic LCD.

Q: Do you provide samples?
A: Yes, samples are typically available within 1-3 days for customers to test and evaluate the module's performance and compatibility.

Q: How to customize this LCD display module?
A: The module can be customized according to customer requirements, including character display content, backlight color, shell design, and other parameters, to meet specific application needs.

Q: What applications is this module suitable for?
A: This module is suitable for applications requiring the display of large font characters and numbers, such as meters, equipment control panels, and information display systems.

Q: How is the quality of this module?
A: This module is manufactured using high-quality LCD panels and electronic components, designed to be stable and reliable, ensuring long-term stable operation and high-quality display performance.

Q: What is this screen used for？
A: Character LCD screens are widely used in home appliances, industrial controls, medical devices, consumer electronics, and DIY projects, suitable for displaying status information, menu options, and basic data.

If you would like to learn more or customize the LCD display screen you need, please feel free to contact us.