The DBT035HQN54R035A is a 3.5-inch TFT LCD module using a 54-pin RGB interface. Its 320×240 resolution provides sufficient image detail for compact graphical user interfaces, instrument readings, menus, status information, icons, and control panels.
The display has an active area of 70.08 × 52.56 mm, while the overall module measures 76.9 × 63.9 × 3.26 mm. This relatively compact form factor makes the module suitable for equipment where PCB space and enclosure dimensions are important design considerations.
The module uses an RGB interface and incorporates HX8238D + HX8678 driver ICs. Its backlight consists of six LEDs connected in parallel, with a specified luminance of 350 cd/m². The product specification lists a storage temperature range of -30°C to 80°C, while the operating temperature range is -20°C to 70°C.
This makes the module particularly relevant to embedded display projects that require more than a basic consumer display but do not need a large-format panel.
| Parameter | Specification |
|---|---|
| Product Model | DBT035HQN54R035A |
| Display Type | RGB TFT LCD |
| Screen Size | 3.5 inch |
| Resolution | 320 × 240 pixels |
| Resolution Type | QVGA |
| Display Mode | Normally White, Transmissive |
| Interface | RGB |
| Number of Pins | 54-pin |
| Active Area | 70.08 × 52.56 mm |
| Module Dimensions | 76.9 × 63.9 × 3.26 mm |
| Pixel Pitch | 0.219 × 0.219 mm |
| Driver IC | HX8238D + HX8678 |
| Backlight | 6 LEDs in parallel |
| Luminance | 350 cd/m² |
| Viewing Direction | 12 o’clock |
| Operating Temperature | -20°C to +70°C |
| Storage Temperature | -30°C to +80°C |
| Model Number | DBT035HQN54R035A |
The specifications above are based on the product information published by Aptus Display. For production projects, customers should confirm the latest datasheet, electrical specifications, connector definition, mechanical drawing, and availability with the Aptus engineering team before finalizing the product design.
A 3.5-inch display provides a useful balance between readability and compact mechanical design. It is large enough to present graphical information, menus, numerical data, and operating status while remaining small enough for embedded equipment.
For equipment designers, the 76.9 × 63.9 mm module outline can help simplify enclosure planning where internal space is limited.
The 320×240 QVGA resolution is well suited to compact interfaces that do not require high-definition graphics. It can display text, icons, graphs, measurement values, menus, status indicators, and simple graphical interfaces.
This makes the module a practical option for control panels and instruments where system functionality is more important than multimedia-level resolution.
The 54-pin RGB interface provides a parallel RGB connection between the display and the host system. Engineers can select this type of interface when their existing hardware architecture is designed around RGB TFT LCD panels.
When replacing an existing display, the interface should be evaluated together with the complete electrical pinout, timing requirements, power supply, backlight requirements, and mechanical dimensions rather than comparing only the number of pins.
With a specified luminance of 350 cd/m², the display is positioned for indoor and controlled-light environments. It can be suitable for equipment interfaces, instruments, control systems, and other applications where extreme outdoor sunlight readability is not the primary requirement.
For outdoor applications exposed to direct sunlight, customers should discuss higher-brightness options with Aptus Display.
The specified operating temperature range of -20°C to +70°C allows the display to be considered for a variety of equipment environments where a standard indoor-only display may not be sufficient.
Temperature requirements should always be evaluated together with the complete system design, enclosure, heat generation, backlight configuration, and installation environment.
Compact TFT LCD modules are frequently used as embedded operator interfaces for industrial equipment. The 3.5-inch form factor can provide enough space for operating parameters, machine status, alarms, numerical values, and basic menus without significantly increasing equipment size.
Potential applications include compact controllers, automation equipment, instrumentation, process equipment, and machine interfaces.
The 320×240 resolution is suitable for displaying measurement values, graphs, test results, operating modes, and status information. The compact size is particularly useful when the LCD needs to be integrated into a handheld or bench-top instrument.
Typical equipment may include electrical testers, laboratory instruments, monitoring equipment, signal-related instruments, and portable measurement devices.
For OEM equipment manufacturers developing custom control systems, the display can serve as the visual interface between the operator and the embedded controller.
A 3.5-inch panel can be used for menus, configuration pages, status information, warnings, and system parameters while leaving sufficient physical space for buttons, indicators, connectors, or other controls.
The small module dimensions make the display suitable for selected portable equipment designs. Designers can use the QVGA screen for graphical menus, device settings, measurement results, and system status.
For battery-powered products, engineers should evaluate the complete power budget, including the LCD backlight, host processor, interface circuitry, and other peripherals.
The display can also be integrated into monitoring systems where users need to view real-time parameters and system status locally.
Examples include compact monitoring controllers, environmental equipment, equipment dashboards, access-control equipment, and specialized electronic systems.
When selecting a 3.5-inch RGB LCD module, mechanical compatibility is only one part of the integration process.
Before purchasing samples or starting mass production, engineers should verify the following:
Mechanical compatibility: Confirm the module outline, active area, mounting structure, thickness, connector position, and enclosure clearance.
RGB interface compatibility: Check RGB data format, signal timing, clock frequency, synchronization signals, voltage levels, and host-controller compatibility.
Power requirements: Verify LCD logic power, backlight power, LED configuration, current requirements, and the power capability of the host system.
Thermal environment: Confirm that the equipment's internal temperature remains within the specified operating range.
Optical requirements: Evaluate brightness, viewing direction, contrast, ambient lighting, cover glass, and potential reflections according to the final installation environment.
Production requirements: For commercial or industrial projects, confirm sample availability, lifecycle requirements, quality standards, lead time, and expected annual volume with the supplier.
Aptus Display's engineering team can help customers evaluate display compatibility and develop a suitable LCD solution based on the host controller, enclosure, interface, and application requirements.
Not every project can use an off-the-shelf LCD module without modification. Mechanical structures, connectors, cables, touch panels, cover glass, brightness levels, and interface requirements can vary significantly between products.
Aptus Display provides LCD display customization and integration services for OEM customers. Depending on project requirements, solutions can include customized display configurations, touch panel integration, connector or cable solutions, driver boards, and other display-related components.
The company states that its technical team supports both standard and semi-custom LCD designs, including connector, ZIF, FPC, touch panel, interconnect, control board, and system integration solutions.
This approach allows customers to evaluate the complete display solution instead of sourcing individual components from multiple suppliers.
Aptus Display is a professional display solution provider based in Shenzhen, China, focusing on TFT LCD, OLED, mono LCD, touch display, and customized display solutions for global customers.
The company's product portfolio covers standard TFT LCD modules as well as specialized display categories including industrial displays, flight simulator displays, bar-type LCD modules, gaming displays, wide-temperature LCD displays, touch panel LCD modules, and LCD accessories.
For OEM and B2B customers, Aptus Display focuses not only on supplying individual LCD panels but also on helping customers develop practical display solutions around their product requirements.
The company's product pages highlight OEM customization, quality control, global shipping, and technical support as key service capabilities.
If you are evaluating this display for a new project, start by defining five essential requirements:
Required screen size and active area
Resolution and graphical content
Host interface and controller compatibility
Operating temperature and environmental conditions
Mechanical dimensions and installation constraints
The 3.5-inch 320×240 RGB TFT LCD module is particularly suitable when the project needs a compact color display with a parallel RGB interface and moderate resolution.
If the application requires a higher brightness level, capacitive touch panel, resistive touch panel, optical bonding, a different interface, or a customized mechanical design, Aptus Display can evaluate alternative display modules or develop a semi-custom solution.
The display resolution is 320×240 pixels, also known as QVGA. It is suitable for graphical interfaces, numerical information, menus, icons, and basic monitoring interfaces.
The module uses a 54-pin RGB interface. Engineers should verify the complete RGB timing, electrical characteristics, connector definition, and host-controller compatibility before integration.
The specified luminance is 350 cd/m². This level is generally appropriate for indoor and controlled-light equipment applications. For direct-sunlight environments, a higher-brightness LCD should be considered.
The specified operating temperature range is -20°C to +70°C, while the storage temperature range is -30°C to +80°C.
Yes. Aptus Display supports OEM and customized display solutions. Depending on project requirements, customization and integration can include touch panels, connectors, FPC/ZIF solutions, cables, driver boards, and other display-related components.
If you are looking for a 3.5-inch 320×240 RGB LCD module for industrial equipment, test instruments, embedded control systems, portable equipment, or another OEM project, the DBT035HQN54R035A can be evaluated as a compact display solution.
When contacting Aptus Display, provide your required display size, resolution, interface, brightness, touch panel requirements, operating temperature, target quantity, and application. Providing these details allows the engineering team to recommend the most appropriate LCD configuration more efficiently.
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