When a compact embedded device needs both a display and touch input, using separate components can increase thickness, assembly complexity, and optical layers. The DBT0430042H-V1 addresses this challenge with an integrated 4.3-inch in-cell TFT-LCD and capacitive touch solution. Featuring 480×800 resolution, 500 cd/m² typical luminance, 1500:1 typical contrast, four-lane MIPI connectivity, and a 3.37 mm module thickness, this display is designed for space-constrained equipment where a slim structure and responsive user interface are important.
Unlike a conventional TFT module that requires an additional touch panel, the DBT0430042H-V1 incorporates the touch function into the display architecture. The result is a compact display assembly that can simplify front-panel design while maintaining a clean optical appearance.
The module is particularly suited to portable instruments, handheld terminals, smart control interfaces, industrial portable equipment, IoT devices, and compact professional electronics where engineers need a high-contrast portrait-oriented display with integrated touch.
For many embedded products, the display is part of the user interface rather than simply an output device. Operators need to see information and interact with the equipment from the same front panel.
The DBT0430042H-V1 is therefore designed around three requirements:
Display + touch integration: The touch function is incorporated into the display structure.
Compact mechanical integration: A 3.37 mm thickness helps reduce the space occupied by the display assembly.
Modern embedded connectivity: A four-lane MIPI interface provides a practical connection method for processors and SoCs used in compact computing platforms.
The 4.3-inch panel uses a 480 × 800 pixel portrait-oriented format. This configuration works particularly well for vertically arranged menus, handheld equipment interfaces, measurement screens, access terminals, and control interfaces.
The display operates in normally black mode, producing a dark native black state and a typical contrast ratio of 1500:1.
The main value of this module is not any single specification. It is the combination of several characteristics that are difficult to achieve efficiently when display and touch components are selected separately.
The DBT0430042H-V1 uses an in-cell capacitive touch structure with single cover glass.
For equipment designers, this can reduce the number of layers in the front display assembly. A thinner optical stack can also help create a more integrated appearance between the display and the equipment's front surface.
This approach is particularly attractive for products where enclosure thickness, appearance, and touch interaction are important design considerations.
The 480×800 format provides a relatively tall display area compared with traditional landscape-oriented embedded panels.
This makes the module suitable for interfaces that naturally flow vertically, including:
Developers can use the available pixel area for menus, numerical information, graphs, status indicators, touch buttons, and other GUI elements.
The DBT0430042H-V1 uses a normally black TFT-LCD structure.
With a typical 1500:1 contrast ratio, the display can produce strong separation between dark and bright interface elements. This is beneficial for modern graphical user interfaces where black backgrounds, high-contrast controls, and visual status indicators are commonly used.
Instead of a traditional parallel RGB connection, this module uses MIPI communication with four differential data lanes and one differential clock lane.
For embedded system designers, MIPI can be advantageous when working with processors that already provide native MIPI DSI output. The differential signaling architecture also allows the display connection to remain compact.
The 30-pin connector incorporates both display and touch-related connections, including MIPI data lanes, clock, reset, power, and touch communication signals.
The physical dimensions of a display can have a significant impact on the final enclosure.
The DBT0430042H-V1 measures approximately:
65.2 × 111.4 × 3.37 mm
with an active display area of:
56.16 × 93.60 mm
The 3.37 mm thickness is especially relevant for portable equipment and slim control interfaces.
Instead of designing space for a conventional TFT panel plus an independent touch panel, the integrated structure allows product developers to work with a more compact display assembly.
This can provide greater flexibility for:
Mechanical engineers should nevertheless consider bezel dimensions, connector clearance, mounting stress, cable routing, and the complete enclosure structure during final product design.
A touch interface is only useful when the underlying display provides sufficient visual quality.
The DBT0430042H-V1 combines several optical characteristics designed for interactive graphical interfaces.
| Display Characteristic | Specification |
|---|---|
| Screen Size | 4.3 inch |
| Resolution | 480 × 800 |
| Display Mode | Normally Black |
| Color Depth | 16.7M |
| Contrast Ratio | 1500:1 typ. |
| Minimum Contrast | 1000:1 |
| Brightness | 500 cd/m² typ. |
| Minimum Brightness | 450 cd/m² |
| Viewing Angle | 85° typ. all directions |
| Uniformity | ≥80% |
| Response Time | 25 ms typ. |
| Maximum Response Time | 35 ms |
| NTSC | 70% typ. |
| Pixel Pitch | 0.117 × 0.117 mm |
The combination of normally black operation and high contrast is useful for interfaces that rely on clear visual hierarchy.
For example, an equipment manufacturer could use dark backgrounds with bright numerical values, status icons, warning indicators, and touch controls without requiring a high-resolution large-format display.
| Item | DBT0430042H-V1 |
|---|---|
| Product Category | In-Cell TFT-LCD Module |
| Screen Size | 4.3 inch |
| Touch | Integrated Capacitive Touch |
| Touch Structure | In-Cell / Single Cover Glass |
| Resolution | 480 RGB × 800 |
| Pixel Arrangement | RGB Stripe |
| Display Colors | 16.7 Million |
| Display Mode | Normally Black |
| Active Area | 56.16 × 93.60 mm |
| Module Size | 65.2 × 111.4 × 3.37 mm |
| Pixel Pitch | 0.117 × 0.117 mm |
| Display Interface | MIPI |
| MIPI Data | 4 Differential Data Lanes |
| Driver / Touch IC | ST7102 |
| Connector | 30 Pin |
| Typical Brightness | 500 cd/m² |
| Contrast Ratio | 1500:1 |
| Viewing Angle | 85° all directions |
| Response Time | 25 ms typ. |
| Backlight | White LED |
| LED Configuration | 5S2P |
| LED Quantity | 10 |
| Typical LED Current | 40 mA |
| Typical LED Voltage | 15 V |
| Analog Supply | 3.0 V typ. |
| Digital / I/O Supply | 1.8 V typ. |
| Operating Temperature | –20°C to +70°C |
| Storage Temperature | –30°C to +80°C |
| Maximum Humidity | 90% RH at ≤60°C |
The DBT0430042H-V1 uses separate power domains for the display electronics and digital I/O.
The typical analog supply is 3.0 V, with a specified range of 2.8–3.3 V.
The digital/I/O supply is typically 1.8 V, with an operating range of 1.65–3.3 V.
This separation should be considered when selecting the host processor and power-management architecture.
The display interface includes:
The integrated touch function provides dedicated connections including:
This arrangement allows display communication and touch control to be incorporated into one compact connector interface.
Before moving to production, engineers should verify MIPI initialization, lane configuration, power sequencing, touch communication, and host-processor compatibility using the latest applicable technical documentation.
The module uses 10 white LEDs in a 5-series × 2-parallel configuration.
At the specified conditions, the backlight characteristics are:
| Backlight Parameter | Specification |
|---|---|
| LED Quantity | 10 |
| Configuration | 5S × 2P |
| Typical Forward Voltage | 15 V |
| Forward Voltage Range | 14–17 V |
| Typical Current | 40 mA |
| Typical Brightness | 500 cd/m² |
| Minimum Brightness | 450 cd/m² |
The LED backlight should be operated within the specified current and voltage limits. A suitable constant-current backlight driver should be incorporated into the host system.
The 3.0 V-class LCD supply and approximately 15 V LED backlight requirement should be treated as separate power requirements during PCB design.
Rather than limiting the module to a single industry, its combination of integrated touch, portrait resolution, compact dimensions, and MIPI connectivity makes it suitable for several types of embedded equipment.
Field-service terminals and portable industrial instruments often need a display that can provide both information and direct operator control.
The DBT0430042H-V1 can provide a compact touch interface for equipment configuration, diagnostics, status monitoring, and data entry.
The 480×800 format provides sufficient space for numerical readings, graphs, menus, measurement settings, and alarm information.
Its touch interface can replace physical buttons in compact measurement products.
Lighting control, HVAC interfaces, security systems, access terminals, and building automation equipment can benefit from a vertically oriented touch interface.
The integrated structure also supports cleaner front-panel designs.
For IoT gateways and edge devices, a local display can provide device status, configuration menus, network information, sensor values, and alerts.
MIPI connectivity makes the module suitable for embedded platforms using compatible application processors.
Compact laboratory instruments frequently require graphical visualization and user interaction within a limited enclosure.
The high contrast and touch functionality of this module can support instrument menus, measurement values, system settings, and operating status.
The module can also be evaluated for specialized portable equipment where a 4.3-inch portrait display and integrated touch interface provide an appropriate balance between usability and enclosure size.
The DBT0430042H-V1 is specified for an operating temperature range of –20°C to +70°C and a storage temperature range of –30°C to +80°C.
The specification also identifies a maximum humidity condition of 90% RH at temperatures up to 60°C.
These characteristics allow the module to be considered for equipment used outside typical room-temperature environments.
However, the LCD module is only one component of the final product. Enclosure design, condensation control, thermal dissipation, sealing, PCB reliability, and mechanical stress should all be evaluated for the finished device.
For OEM and ODM projects, selecting an LCD module is usually the beginning of the engineering process rather than the end.
Aptus Electronics supports customers during display evaluation, hardware integration, sample testing, and production preparation.
Technical support can include:
Quality control focuses on both functional performance and visual appearance. Typical inspection considerations include display defects, spots, scratches, bubbles, pixel abnormalities, glass condition, and other manufacturing characteristics.
For projects requiring long-term supply, customers can also discuss forecast requirements, production quantities, qualification procedures, and product lifecycle planning with Aptus.
Aptus Electronics Co., Limited provides TFT-LCD modules and display solutions for customers developing embedded, industrial, commercial, and professional equipment.
Rather than focusing only on standard catalog displays, Aptus works with customers whose projects may require specific combinations of display size, resolution, interface, brightness, touch technology, mechanical dimensions, or environmental specifications.
This engineering-oriented approach allows customers to evaluate display solutions based on the actual requirements of their finished equipment.
For OEM and ODM customers, Aptus can support the process from initial sample evaluation through production planning, helping engineering teams reduce display integration risks and select an appropriate configuration for their application.
No. The DBT0430042H-V1 uses an in-cell touch architecture, meaning the touch function is integrated into the display structure. It uses a single cover glass rather than requiring a conventional separate touch panel assembly.
Yes. The native resolution is 480 RGB × 800 pixels with an RGB-stripe arrangement.
The 480×800 format is particularly suitable for portrait-oriented interfaces, although the final mounting orientation depends on the system design and software configuration.
The display uses a four-lane MIPI interface, making it suitable for compatible processors and SoCs that support MIPI DSI output.
The display electronics operate from low-voltage supplies, with a typical analog supply of 3.0 V and I/O supply of 1.8 V. The LED backlight requires a separate drive circuit, with a typical forward voltage of approximately 15 V.
The typical brightness is 500 cd/m², which can provide good readability in many indoor and bright indoor environments. However, 500 cd/m² alone should not be described as fully sunlight-readable. Direct outdoor applications require evaluation of reflectance, cover glass, optical bonding, and ambient illumination.
Yes. Its –20°C to +70°C operating temperature, integrated touch, compact construction, and MIPI interface make it suitable for many industrial and professional embedded products.
The touch interface includes TP_INT, TP_SDA, TP_SCL, TP_RESET, and TP_VCI, allowing the touch controller to communicate with the host system.
Yes. Customers can contact Aptus for sample availability, technical documentation, pricing, MOQ, lead time, and production requirements.
If your product requires a 4.3-inch touch display with 480×800 resolution, MIPI connectivity, high contrast, and a slim integrated structure, the DBT0430042H-V1 is worth evaluating during the prototype stage.
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