The DBT028BVC40M030C is a 2.8-inch-class circular TFT-LCD display designed for embedded products that require both a distinctive round form factor and direct user interaction. With a 480×480 resolution, 250 cd/m² brightness, MIPI display interface, and integrated G+F+F capacitive touch, this module combines graphical display and touch control in a compact circular format.
Unlike a conventional rectangular LCD installed behind a round bezel, this module is designed specifically around a circular active display area. This makes it suitable for products built around rotary-style interfaces, digital gauges, circular menus, smart appliance controls, and compact touch HMI designs.
The DBT028BVC40M030C was originally positioned for flight simulator instrument applications, where circular displays can reproduce the visual appearance of cockpit gauges and aviation instruments. Its integrated capacitive touch functionality also makes it a strong candidate for another growing application area: smart home control panels and smart appliance interfaces.
For OEM and ODM developers, the module can therefore be considered for aviation simulation, smart home devices, IoT products, compact control interfaces, digital instruments, and other embedded products where display shape and interactive control are both important.
The DBT028BVC40M030C combines several features that are particularly useful for compact interactive products:
2.8-inch-class circular TFT-LCD
480×480 RGB resolution
70.13×70.13 mm circular active area
Approximately 250 cd/m² brightness
MIPI display interface
Integrated G+F+F capacitive touch panel
FT3427 touch controller
ST7701S LCD driver IC
Normally Black display architecture
RGB Stripe pixel arrangement
16.7 million display colors
ALL O’clock viewing direction
95×95×3.55 mm module dimensions
Compact structure for embedded product integration
RoHS compliant
The combination of a circular display and integrated touch panel allows product designers to create interfaces that are visually different from standard rectangular HMI products.
| Parameter | Specification |
|---|---|
| Model | DBT028BVC40M030C |
| Display Type | TFT-LCD |
| Display Shape | Circular |
| Display Size | 2.76-inch diagonal / 2.8-inch class |
| Resolution | 480 × 480 RGB pixels |
| Active Area | 70.13 × 70.13 mm |
| Pixel Pitch | 0.1461 × 0.1461 mm |
| Brightness | 250 cd/m² |
| Display Mode | Normally Black |
| Pixel Arrangement | RGB Stripe |
| Display Colors | 16.7M |
| Viewing Direction | ALL O’clock |
| Module Dimensions | 95 × 95 × 3.55 mm |
| Display Interface | MIPI |
| LCD Driver IC | ST7701S |
| Touch Technology | Capacitive Touch |
| Touch Structure | G+F+F |
| Touch IC | FT3427 |
| Compliance | RoHS |
Display geometry can have a direct influence on the mechanical structure and user experience of an electronic product.
A rectangular TFT-LCD is often the easiest choice for conventional control panels, but it may not be ideal when the product has a circular housing, rotary control, gauge-style interface, or compact industrial design.
A circular TFT-LCD can eliminate unused corner areas and allow the graphical user interface to follow the physical shape of the product.
For example, designers can create:
Circular temperature interfaces
Radial adjustment controls
Digital gauge graphics
Circular progress indicators
Clock-style interfaces
Device status rings
Radial menus
Aviation instrument interfaces
Compact appliance control interfaces
The DBT028BVC40M030C goes one step further by integrating a capacitive touch panel. This means the circular display can function as an interactive control surface rather than only a visual indicator.
One of the most promising applications for this module is the smart home control interface.
Modern home automation products often need a compact user interface for controlling lighting, temperature, ventilation, security, music, and other connected functions. A circular display can provide a cleaner and more intuitive interface for these products.
For example, a wall-mounted smart home controller could use the center of the display to show room temperature while surrounding graphical elements provide access to lighting, air conditioning, curtains, or other connected devices.
The touch interface can allow users to select operating modes, adjust settings, switch devices on or off, or navigate between different home-control functions.
Potential applications include:
Smart home control panels
Room automation controllers
Smart lighting controllers
Smart thermostat interfaces
Climate-control panels
Smart security control interfaces
Home energy management interfaces
IoT control hubs
Compact wall-mounted controllers
Smart room management systems
The 480×480 resolution provides sufficient graphical space for icons, numerical values, menus, status indicators, and other UI elements while retaining the visual balance of a circular interface.
The integrated touch functionality also makes this module suitable for smart appliances.
Many modern appliances are moving away from simple mechanical buttons and segment indicators toward graphical user interfaces. However, not every appliance requires a large rectangular display.
A compact circular LCD can be incorporated into products where the control area is limited or where the manufacturer wants a distinctive product appearance.
Potential smart appliance applications include:
Smart coffee machines
Air purifiers
Humidifiers
Smart ovens
Kitchen appliances
Smart heating controls
Small climate-control equipment
Smart water dispensers
Home beverage equipment
Intelligent cooking equipment
For a coffee machine, for example, the circular touch display could show beverage selection, temperature, preparation status, cleaning reminders, and operating information.
For an air purifier, the interface could display air-quality information, fan speed, operating mode, filter status, and timer settings.
For these products, the display is not simply a component for showing information. It becomes part of the product's user interaction and industrial design.
The DBT028BVC40M030C also retains strong potential for flight simulator applications.
Circular aviation instruments are commonly represented using gauge-style graphical interfaces. A circular TFT-LCD can therefore be integrated into simulator panels where a traditional rectangular display would not provide the desired appearance.
Possible applications include:
Flight simulator instrument panels
Cockpit gauge displays
Digital aviation instruments
Navigation instrument interfaces
Heading indicators
Altitude-related instrument graphics
Engine parameter displays
Pilot training equipment
Custom simulator control panels
The 480×480 resolution provides a useful pixel matrix for detailed instrument graphics, numerical information, markings, indicators, and dynamic visual elements.
The capacitive touch functionality can also be useful for simulator systems where users need to interact directly with displayed controls or menus.
Aptus currently includes this model within its Flight Simulator Solution range alongside other square and circular display products.
The module can also be evaluated for compact HMI and IoT products.
Its circular structure provides designers with an alternative to conventional rectangular HMI displays, while the integrated capacitive touch panel allows direct user interaction.
Potential applications include:
Compact industrial instruments
Digital measurement equipment
IoT controllers
Building automation interfaces
Smart energy controllers
Environmental monitoring devices
Digital gauges
Equipment status interfaces
Specialty control panels
The ALL O’clock viewing direction is particularly useful for interfaces that may be viewed from different positions rather than from one fixed viewing axis.
A major advantage of the DBT028BVC40M030C is that the display and touch functionality are integrated into one module.
The G+F+F capacitive touch structure is controlled by the FT3427 touch IC, while the TFT-LCD uses the ST7701S driver architecture.
This integrated approach can simplify product development compared with sourcing a separate LCD and external touch component.
For OEM product development, engineers should still evaluate the complete touch system, including touch sensitivity, cover structure, firmware communication, electrical compatibility, mechanical mounting, and the final enclosure design.
The host system should also be verified for compatibility with the module's MIPI display interface before the main PCB architecture is finalized.
The overall module dimensions are approximately 95 × 95 × 3.55 mm, while the circular active area is 70.13 × 70.13 mm.
During product development, engineers should consider:
Display opening diameter
Module mounting method
FPC routing
Connector location
PCB clearance
Enclosure thickness
Touch-panel integration
Cover lens structure
Optical requirements
Thermal conditions
For smart home and smart appliance products, the display opening and front housing are particularly important because the circular display often becomes a visible part of the product's industrial design.
For flight simulator applications, the mechanical structure should also account for the instrument panel layout and surrounding controls.
The module provides approximately 250 cd/m² brightness, making it suitable for many indoor embedded applications.
This brightness level can work well for smart home controllers, appliances, indoor IoT products, simulator equipment, and compact HMI systems. If a project requires substantially higher brightness for a specific lighting environment, Aptus can evaluate alternative display configurations.
The MIPI interface is also relevant for modern embedded display architectures. Before hardware development, system engineers should confirm the host processor or display controller's MIPI compatibility, initialization requirements, timing parameters, and connector configuration.
Because the online product page contains a pin-count discrepancy between the product title and specification field, the latest Aptus datasheet should be treated as the reference for the final hardware design.
Not every smart appliance, IoT device, or simulator requires an off-the-shelf display configuration.
Aptus supports standard and selected semi-custom display development, including display interfaces, FPC and connector requirements, touch panel integration, mechanical configurations, and other project-specific requirements. The company's product catalog also covers TFT LCD modules, touch panel modules, circular LCD displays, bar displays, flight simulator solutions, and other specialized display products.
For a new project, customers can provide the required display size, resolution, interface, brightness, touch requirements, mechanical constraints, application environment, and estimated annual quantity.
The Aptus engineering team can then evaluate whether the existing DBT028BVC40M030C is appropriate or whether another circular LCD configuration would better match the project.
Shenzhen Aptus Technology Co., Limited specializes in TFT-LCD modules and customized display solutions for international OEM, ODM, engineering, and distribution customers.
Aptus has been involved in the LCD display industry since 2014, providing display R&D, manufacturing, and marketing services. The company's product scope includes TFT LCD modules, touch panels, control and driver boards, cables, backlight solutions, and integrated display solutions.
Aptus supports projects requiring customized resolution, brightness, interface, touch functionality, mechanical structure, and other display-related requirements.
The company also supports sample evaluation and international shipping, helping customers move from initial display selection to prototype development and production supply.
For products such as smart appliances, smart home controllers, flight simulator instruments, IoT equipment, and compact HMI systems, working directly with a display supplier during the design stage can help engineers identify interface, touch, mechanical, and optical requirements earlier in the development process.
It is a 2.8-inch-class circular TFT-LCD module with 480×480 resolution and an integrated G+F+F capacitive touch panel.
Yes. The module integrates a capacitive touch panel using a G+F+F structure and an FT3427 touch IC.
The display provides 480×480 RGB pixels.
The circular active area is approximately 70.13×70.13 mm.
The overall module dimensions are approximately 95×95×3.55 mm.
Yes. The circular form factor and integrated touch interface make it suitable for smart home control panels, room controllers, lighting interfaces, climate controls, IoT hubs, and other compact home automation products.
Yes. Potential applications include smart coffee machines, air purifiers, humidifiers, kitchen appliances, climate-control equipment, and other products requiring a compact graphical touch interface.
Yes. Its circular shape and 480×480 resolution make it suitable for digital cockpit gauges, instrument panels, navigation interfaces, and other flight simulator applications.
The module uses a MIPI display interface. Because the current online page has inconsistent pin-count labeling, the final connector and pin configuration should be confirmed with Aptus before hardware development.
Aptus can evaluate customization requirements for suitable projects, including touch integration, mechanical configuration, interface requirements, optical specifications, and other project-specific requirements.
If you are developing a smart home control panel, smart appliance, IoT device, flight simulator instrument, digital gauge, compact HMI, or another embedded product requiring a circular touch display, the DBT028BVC40M030C can be evaluated as a potential display solution.
When contacting Aptus, it is helpful to provide:
Required display size
Resolution
Interface
Brightness
Touch requirements
Product dimensions
Operating environment
Application
Estimated order quantity
Aptus can provide technical documentation, sample evaluation, interface information, and project-based display support.
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