1.39-inch Round AMOLED Display, 400x400 resolution, 300 nits, 16.7M colors, MIPI interface

Two round display panels connected to an adapter board

Back of 1.39-inch Round AMOLED Display Module

Adapter for 1.39-inch Round AMOLED Display, 400x400 resolution

Video of connecting two 1.39-inch screens with adapter

1.39" Round AMOLED Display 400x400 300nits 16.7M-Colors - MIPI

SKU: DM-OLEDC139-654

$39.90

💹 Enjoy a 20% discount for orders over 500
📉 A 15% discount is available for orders ranging from 200 to 499
🎁 A 10% discount is available for orders ranging from 50 to 199
🎁 A 5% discount is available when ordering 10-49

Interested in customizing this product? Get in touch with us.

Order samples, immediate delivery.

Factory bulk lead time: 3 weeks.

Set: Panel-20pin

Panel-20pin Dual interface 20-pin adapter Panel-24pin Single interface 24-pin adapter

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1.39" Round AMOLED Display 400x400 300nits 16.7M-Colors - MIPIPanel-20pin

$39.90

Round AMOLED Display Module

1.39" Round AMOLED Display 400×400 300nits Typ. 16.7M Colors - MIPI

High-resolution round AMOLED display for compact user interfaces, wearable devices, smart control panels, portable instruments, and circular HMI designs. The module combines a 1.39 inch active display format, 400 × 400 pixel resolution, 16.7 million color output, typical 300 cd/m² luminance, and MIPI interface support.

The display uses Raydium RM69080 controller IC and supports Real RGB pixel arrangement. Logic and panel power are separated through IOVCC 1.8V and VCI 2.8V supply rails, which should be verified during schematic design, power sequencing, and PCB layout.

1.39 inch

Round AMOLED size

400 × 400

Pixel resolution

300 cd/m² typ.

Luminance

MIPI

Display interface

Core Product Specifications

The specification table below summarizes the key display, electrical, interface, mechanical, and operating parameters of this round AMOLED display module.

Parameter	Specification
Diagonal Dimension	1.39 inch
Resolution	400 × 400 pixels
Display Color	16.7M colors maximum
Luminance	300 cd/m² typ.
Interface	MIPI
Controller IC	Raydium RM69080
Supply Voltage	IOVCC 1.8 V, VCI 2.8 V
Module Dimensions	38.6 × 40.5 × 0.7 mm
Viewing Area	35.4 × 35.4 mm
Touch Mode	None
Pixel Arrangement	Real RGB
Frame Rate	60 Hz normal mode

Electrical & Interface Integration Details

Separated Power Rails

Use 1.8 V for IOVCC and 2.8 V for VCI. Confirm power sequencing, ripple control, grounding, and connector pin mapping against the official datasheet before PCB release.

MIPI Data Interface

MIPI interface support can help simplify display signal routing compared with wide parallel interface designs, depending on the host platform. Verify lane configuration, FPC routing, impedance control, and signal integrity during hardware integration.

Controller IC / Firmware Check

Use the official display datasheet and RM69080 initialization code when checking command sequence, timing behavior, panel control, and firmware initialization requirements.

Mechanical Design Data

The module size is 38.6 × 40.5 × 0.7 mm, with a 35.4 × 35.4 mm viewing area. The thin 0.7 mm module profile is suitable for compact enclosure designs where display stack height must be controlled.

Before enclosure tooling, verify the active area, viewing area, FPC bend direction, connector position, mechanical keep-out area, and assembly tolerance using the datasheet and STEP file.

38.6 mm

Module width

40.5 mm

Module height

0.7 mm

Module thickness

35.4 × 35.4 mm

Viewing area

PCB Layout Checkpoints

Confirm MIPI routing rules and impedance control before layout approval.

Validate 1.8 V IOVCC and 2.8 V VCI rails under startup and normal mode.

Check FPC bending radius, connector clearance, adhesive area, and mechanical pressure points.

Use the provided STEP model to confirm enclosure, window, and circular UI alignment.

Run display initialization with the RM69080 reference code before firmware freeze.

Engineering Resource Package

Display Datasheet

Use the DM-OLEDC139-654 datasheet to confirm electrical characteristics, mechanical dimensions, interface details, and operating conditions before design lock.

Controller IC / Firmware Check

Use the official display datasheet and RM69080 initialization code when checking command sequence, timing behavior, panel control, and firmware initialization requirements.

Initialization Code

Use the RM69080 MIPI 400×400 example code to support firmware bring-up and verify communication with the display module.

STEP 3D Model

Import the STEP file into mechanical design software to confirm fit, enclosure clearance, FPC position, and product assembly structure.

Application Fit

Wearable Devices

Round 1.39 inch format and 400 × 400 resolution support circular UI designs for smartwatches, fitness trackers, and compact wearable terminals.

Portable Health Monitor UI

Suitable for display-interface evaluation in portable health monitoring products. Final medical device compliance, certification, and reliability validation must be completed at the finished product level.

Industrial HMI

Appropriate for compact control panels, handheld instruments, and round status screens where MIPI interface, clear color output, and thin module structure are required.

OEM & ODM Supply Details to Confirm

For production programs, confirm sample availability, volume pricing, production lead time, customization scope, inspection standards, packing requirements, and long-term supply expectations before purchase order release.

Customization requests may involve display parameters, FPC design, interface configuration, firmware support, and project-specific integration requirements. Final feasibility depends on technical review and order volume.

Sample Review

Volume Pricing

Lead Time

Customization

Pre-Production Validation Checklist

01. Confirm the official datasheet version and match it with the exact product code DM-OLEDC139-654.

02. Verify IOVCC 1.8 V and VCI 2.8 V power rails on the target PCB.

03. Check MIPI interface compatibility with the selected processor, SoC, or display bridge.

04. Confirm mechanical fit using the 38.6 × 40.5 × 0.7 mm module dimension and 35.4 × 35.4 mm viewing area.

05. Test RM69080 initialization code on the target platform before pilot production.

06. Confirm touch requirements early because this listed module configuration has no touch mode.

Download Datasheet & Confirm Integration Details

Use the official datasheet to confirm mechanical dimensions, MIPI interface configuration, host interface compatibility, power rail requirements, operating conditions, and panel matching details before PCB layout or system integration.

For OEM and ODM projects, confirm sample availability, volume pricing, production lead time, customization scope, inspection standards, and long-term supply requirements with the engineering team.

Download Official Datasheet View Example Code Download STEP File

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1.39" Round AMOLED Display 400x400 300nits 16.7M-Colors - MIPI