The DBT185BUN30L030A is an 18.5-inch square TFT-LCD module designed for display applications that require a large active area, square aspect ratio, stable LVDS connectivity, wide viewing angles, and reliable operation across a broad industrial temperature range.
Featuring a 1200 × 1200 pixel resolution, this LCD module provides a true square display format rather than the conventional 16:9 configuration. Its 331.20 × 331.20 mm active display area makes it suitable for equipment and systems where a square visual interface provides better use of the available installation space.
The module uses an a-Si TFT active matrix, 8-bit color processing, and supports 16.7 million display colors. Its optical performance includes a typical 1200:1 contrast ratio, 300 cd/m² luminance, 72% NTSC color gamut, and approximately 89° viewing angle in horizontal and vertical directions under the specified measurement conditions.
The DBT185BUN30L030A uses a 2-channel, 8-bit LVDS interface and is designed for systems requiring a reliable digital display connection. The module operates from a typical 5.0 V supply for the LCD electronics, while the LED backlight uses a separate power input.
Its operating temperature range of -20°C to +70°C and storage temperature range of -30°C to +80°C make it suitable for a variety of equipment installed in environments where standard commercial display modules may not provide sufficient temperature flexibility.
The DBT185BUN30L030A has an 18.5-inch diagonal size with a 331.20 × 331.20 mm active display area. The square format can provide a practical alternative to traditional widescreen displays when equipment architecture, interface layout, or viewing requirements call for a more balanced display area.
With 1200 × 1200 pixels, the module provides the same horizontal and vertical pixel count. This square resolution is particularly useful for interfaces designed around symmetrical layouts, graphical dashboards, equipment control interfaces, and specialized display systems.
The 0.276 × 0.276 mm pixel pitch provides a consistent pixel structure across the square active area.
The module supports 8-bit color depth and 16.7 million colors, allowing graphical interfaces, equipment information, images, and other visual content to be displayed with a broad range of colors.
The typical luminance is 300 cd/m², with the optical specification listing a 250–350 cd/m² range under the specified test conditions. This provides a balanced brightness level for many indoor equipment and embedded display environments.
The DBT185BUN30L030A provides a typical 1200:1 contrast ratio, with a minimum value of 1000:1 specified under the optical test conditions. The contrast performance helps maintain separation between dark and bright image areas.
The viewing angle is specified at approximately 89° in the horizontal and vertical directions at CR ≥ 10, providing a broad viewing range for users who may not be positioned directly in front of the display.
The LCD uses an anti-glare coating of 25% combined with a 3H hard coating. This surface treatment is intended to help manage reflections while providing a harder surface finish for the display module.
| Parameter | Specification |
|---|---|
| Model | DBT185BUN30L030A |
| Display Type | Color TFT-LCD Module |
| Display Size | 18.5 inch |
| Aspect Format | Square |
| Resolution | 1200 × 1200 |
| Active Display Area | 331.20 × 331.20 mm |
| Module Dimensions | 356.30 × 360.80 × 15.9 mm |
| Pixel Pitch | 0.276 × 0.276 mm |
| Driver Element | a-Si TFT Active Matrix |
| Display Colors | 8-bit, 16.7M |
| Pixel Arrangement | RGB Vertical Stripe |
| Display Mode | Transmissive / Normally Black |
| Surface Treatment | Anti-Glare 25%, Hard Coating 3H |
| Contrast Ratio | 1200:1 typ. |
| Viewing Angle | 89° H / 89° V typ. |
| Color Gamut | 72% NTSC typ. |
| Response Time | 35 ms typ. |
| Luminance | 300 cd/m² typ. |
| Interface | LVDS, 2-channel, 8-bit |
| LCD Supply Voltage | 5.0 V typ. |
| LCD Supply Range | 4.5–5.5 V |
| Backlight | LED |
| LED Configuration | 14 series × 4 parallel |
| LED Voltage | 42 V typ. |
| LED Current | 250 mA typ. |
| Typical Module Power | 19 W |
| Operating Temperature | -20°C to +70°C |
| Storage Temperature | -30°C to +80°C |
| Operating Humidity | 10–90% RH |
| Storage Humidity | 10–90% RH |
| Weight | Approx. 2.1 kg |
| Rotate Function | Not supported |
The mechanical dimensions, weight, temperature specifications, interface configuration, and electrical characteristics are based on the product specification supplied for DBT185BUN30L030A.
The DBT185BUN30L030A is designed with a 2-channel, 8-bit LVDS interface. The LCD connector is specified as a 30-pin connection, with JAE FI-X30H or an equivalent connector identified for the user-side connection. The recommended cable length is less than 300 mm.
The module uses the VESA 8-bit LVDS data format. Its interface timing supports a typical clock frequency of 55.278 MHz, with the specified operating range extending from 48.678 to 67.155 MHz. The vertical frame rate is specified from 57 to 63 Hz, with 60 Hz as the typical operating condition.
For system designers, the LVDS architecture provides a defined digital interface for integrating the LCD into compatible display electronics. Correct LVDS timing, signal levels, power sequencing, and cable design should be verified during system integration according to the original specification.
The DBT185BUN30L030A has an overall module size of 356.30 mm × 360.80 mm × 15.9 mm, while the active display area measures 331.20 mm × 331.20 mm. The module weighs approximately 2.1 kg.
Because the active area is square, the module can be considered for equipment designs where a conventional widescreen LCD would leave unused horizontal or vertical installation space. However, the datasheet specifies that the rotate function is unavailable, so the mechanical installation orientation should be determined during the system design stage.
For applications exposed to changing ambient temperatures, the DBT185BUN30L030A supports an operating temperature range of -20°C to +70°C. Its storage temperature range extends from -30°C to +80°C. The specified operating and storage humidity range is 10–90% RH, subject to the conditions described in the datasheet.
The product specification also defines several reliability test conditions, including:
These tests are part of the specified reliability evaluation conditions and should not be interpreted as a guarantee that every finished system will operate under identical conditions. System-level thermal, mechanical, electrical, and environmental design remains important.
The square 18.5-inch format, 1200 × 1200 resolution, LVDS interface, and -20°C to +70°C operating range make the DBT185BUN30L030A a candidate for a range of specialized display applications.
The square display area can be integrated into industrial equipment where a balanced interface layout is preferred. It can provide sufficient space for status information, graphical controls, parameter displays, and equipment monitoring interfaces.
For HMI designs requiring a larger square interface, the 1200 × 1200 resolution provides an alternative to standard 16:9 LCD modules. The wide viewing angle can also support operators viewing the interface from different positions.
The module can be considered for control panels and monitoring systems that require a relatively large display area while maintaining a square mechanical format.
The 18.5-inch size provides more display area than typical small embedded LCD modules while retaining a square format. This makes it suitable for specialized equipment where a conventional widescreen panel does not match the mechanical or interface requirements.
With its specified -20°C to +70°C operating range and reliability testing at both high and low temperatures, the module can be evaluated for equipment operating in environments with wider temperature variation.
Important: The datasheet does not define a specific end-use application. Final application suitability should therefore be evaluated according to the customer's mechanical enclosure, thermal conditions, electrical design, interface controller, installation orientation, and operating environment.
Shenzhen Aptus Technology Co., Limited focuses on LCD display development, manufacturing, and supply for customized display requirements.
For projects based on the DBT185BUN30L030A, Aptus can support customers through the evaluation and integration process, including specification confirmation, sample evaluation, display interface requirements, mechanical integration, brightness requirements, touch-panel integration where applicable, and other project-specific display requirements.
Aptus has been involved in the LCD industry since 2014 and provides display solutions for customers requiring standard and customized TFT-LCD modules. The company's engineering capabilities cover display specifications such as resolution, brightness, interface, touch functionality, mechanical structure, and operating-temperature requirements.
For B2B projects, customers can work with Aptus to evaluate whether this 18.5-inch square LCD module meets their system requirements before proceeding with production.
The DBT185BUN30L030A has a 1200 × 1200 pixel resolution, providing a square display format.
Yes. The module has a square active display area of 331.20 × 331.20 mm and a 1200 × 1200 pixel resolution.
The module uses a 2-channel, 8-bit LVDS interface and supports the VESA 8-bit LVDS data format.
The typical luminance is 300 cd/m², with the optical specification defining 250 cd/m² minimum and 350 cd/m² maximum under the specified test conditions.
The specified operating temperature range is -20°C to +70°C, while the storage temperature range is -30°C to +80°C.
The datasheet states that the rotate function is unachievable for this model. The installation orientation therefore needs to be considered during mechanical system design.
The typical contrast ratio is 1200:1, with a minimum specified value of 1000:1 under the optical test conditions.
Yes. Aptus works with customers on customized display requirements, including display dimensions, resolution, brightness, interface, touch-panel requirements, and mechanical integration. For a specific project, the required specifications should be confirmed with the Aptus engineering team.
If you are looking for an 18.5-inch square TFT-LCD module with 1200 × 1200 resolution and LVDS interface, the DBT185BUN30L030A can be evaluated for your equipment or embedded display project.
Contact Aptus with your required display size, resolution, interface, brightness, operating temperature, mechanical dimensions, and application requirements. Our team can help evaluate the suitability of this LCD module and discuss sample evaluation or customized display requirements.
👉 Request a quote or sample
📧 Or email us directly: info@aptusdisplay.com
Click here for the complete product catalog
