1.6 Inch Circle LCD Module for Medical Instrument HMI

1.6 Inch Circle LCD Module for Medical Instrument HMI

This compact 400 × 400 IPS module combines 350 cd/m² typical luminance, a 16-pin FPC and 3.3 V UART RX/TX lines for small embedded interfaces.

Product Summary

The Circle LCD Module for Medical Instrument HMI is a 1.6-inch round TFT component for compact instruments, smart controls and space-constrained operator interfaces. It provides a native 400 × 400 pixel canvas, IPS viewing characteristics, 16.7M colors, a 1000:1 contrast ratio and a 60 Hz frame rate within a 42.94 × 45.89 × 1.65 mm module envelope.

A UART label does not make a display universally plug-and-play. The host team must confirm the command protocol, baud rate, logic levels, startup behavior and full 16-pin definition before releasing electronics.

This module is a display component rather than a certified medical device. Medical equipment use requires system-level safety, usability, regulatory and risk-management qualification.

Key Specifications

Circular 400 × 400 Interface Design

Keep Critical Information Inside the Safe Area

A round screen should not be treated as a cropped rectangular interface. Important readings, alarms, labels and controls should remain near the center, with sufficient margin from the circular edge. Rings, arcs and radial indicators can use the perimeter, while diagnostic values and status text should remain in the highest-readability zone.

The 39.84 × 39.84 mm active area gives the UI team a compact square raster behind the round visual opening. Prepare artwork at the native 400 × 400 resolution to avoid scaling artifacts and test the design on the actual module before finalizing font sizes.

Validate Color and Contrast in the Final Assembly

The module supports 16.7M colors and a listed 1000:1 contrast ratio, but final readability also depends on the cover window, reflections, viewing distance and enclosure angle. Evaluate representative content behind the planned front material rather than approving the bare display alone.

UART Integration for the Circle LCD Module for Medical Instrument HMI

Confirm the 16-Pin FPC Definition

The FPC drawing identifies 3.3 V and ground pins, UART_RX_3V3, UART_TX_3V3 and additional F_IO0–F_IO3, F_CS and F_CLK signals. These auxiliary names do not establish their communication protocol or timing. Obtain the approved interface document before assigning MCU pins or designing a production cable.

Separate Electrical Compatibility from Software Compatibility

Matching 3.3 V UART levels is only one part of integration. The engineering team must also confirm baud rate, frame structure, addressing, command set, image-transfer method, response behavior and error handling. The module’s onboard FPC circuitry should not be assumed to use the same protocol as another UART HMI product.

Optical and Environmental Boundaries

The standard luminance is 350 cd/m² typical. This level is suitable for indoor and controlled-light equipment evaluation, but it does not establish direct-sun readability. Bright windows, reflective covers or shallow viewing angles can reduce apparent contrast.

The listed −20°C to +70°C operating range and −30°C to +80°C storage range support broad environmental planning at component level. Finished-equipment operation still depends on enclosure temperature, backlight drive, condensation control and the thermal behavior of surrounding electronics.

Mechanical Integration

Use the Module Drawing Before Tooling

The module outline is 42.94 × 45.89 × 1.65 mm, and the active area is 39.84 × 39.84 mm. The long FPC and onboard circuit section require additional clearance beyond the circular display head. Release the enclosure only after checking the complete drawing, flex direction, bend radius, stiffener location and connector access.

Application Qualification

The Circle LCD Module for Medical Instrument HMI can be evaluated for compact diagnostic interfaces, handheld measuring equipment, smart control knobs, laboratory instruments and small embedded status panels. The circular format is especially useful where a product already uses a dial, gauge or rotary-control language.

Application wording does not establish medical certification, continuous-operation grade, waterproofing, sterilization resistance or compatibility with a particular instrument. Those requirements must be addressed by the finished-equipment design and its qualification program.

Configuration and Customization

Branding, packaging and graphic customization are generally reviewed from 300 pieces. Technical changes such as FPC geometry, interface mapping, luminance, cover structure, touch integration or firmware behavior require a separate engineering review. Sample and standard-module quantities are confirmed separately.

Touch should not be treated as standard for this 16-pin assembly. A touch-enabled project requires an approved sensor structure, controller, interface, cover lens and combined mechanical drawing.

Procurement Checklist

Confirm:

• Approved model and revision
• Native 400 × 400 timing and content format
• Complete 16-pin FPC pinout
• FPC pitch, contact side and connector model
• 3.3 V supply tolerance and current requirement
• UART baud rate, frame format and command protocol
• Function of F_IO0–F_IO3, F_CS and F_CLK
• Startup, asset storage and recovery behavior
• 39.84 × 39.84 mm active-area position
• 42.94 × 45.89 × 1.65 mm module outline
• FPC length, bend radius and stiffener clearance
• 350 cd/m² lighting suitability
• Cover-window transmission and reflection
• Touch requirement and separate touch documentation
• Operating and storage temperature targets
• Sample quantity, annual demand and production schedule