1.39" Round AMOLED Display 454x454 Full Color Narrow Margin - MIPI, I2C
- 💹 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
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1.39" Round AMOLED Display 454x454 Full Color Narrow Margin - MIPI, I2C
- 💹 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
Resources & Downloads
1.39-Inch Round AMOLED Module — 454×454, MIPI-1 Lane, ICNA3310 & ZTW523 Touch
The DM-OLEDC139-668 is a 1.39-inch round AMOLED display module with 454×454 resolution and 0.078×0.078 mm pixels. It is built for circular user interfaces such as wearables, compact instruments, and round control panels that require full-color output and touch support.
The display interface is MIPI-1 lane, while the touch interface is I2C. Pinout, initialization sequence, power sequencing, and mechanical fit should be confirmed with DisplayModule before enclosure, PCB, and firmware release.
Verified Technical Specifications
| Technical Parameter | Specification |
|---|---|
| Model / SKU | DM-OLEDC139-668 |
| Display Mode | AMOLED |
| Diagonal Size | 1.39 inch |
| Resolution | 454 × 454 pixels |
| Pixel Size | 0.078 × 0.078 mm |
| Display Controller IC | ICNA3310 |
| Touch IC | ZTW523 |
| Display Interface | MIPI-1 lane |
| Touch Interface | I2C |
| Active Area | 35.41 × 35.41 mm |
| Panel Dimension | 40.3 × 41.8 × 2.45 mm |
| Luminance | 390 min / 430 typ / 470 max cd/m² |
| Contrast Ratio | 10,000 typ @ 25° |
| Viewing Direction | All-direction; typical 85° top, bottom, left, and right |
| Analog Supply Voltage VCI | 2.7 V to 3.6 V, 3.3 V typical |
| Digital Supply Voltage VDDIO | 1.65 V to 1.95 V, 1.8 V typical |
| AMOLED Power Supply Vbat | 2.5 V to 5.5 V, 3.8 V typical |
| Operating Temperature | -20 °C to 60 °C |
| Storage Temperature | -30 °C to 70 °C |
Display, Electrical, and Mechanical Details
Round AMOLED Display Core
The 1.39-inch round AMOLED panel, 454×454 resolution, and 0.078 mm pixel size support detailed icons, rings, compact dashboards, and small text for circular UI designs.
Power Budget Check
Do not treat the module as a single 3.3 V-only device. VCI, VDDIO, and Vbat operating ranges are separate, so power sequencing and level compatibility should be confirmed before layout approval.
Mechanical Fit
The 35.41×35.41 mm active area and 40.3×41.8×2.45 mm panel dimension define cover-lens opening, black-mask alignment, adhesive area, FPC bend, and enclosure clearance.
Interface and Controller Details
MIPI Display Interface
The display interface is MIPI-1 lane. Confirm MIPI lane routing, impedance, length matching, and grounding strategy before PCB release.
I2C Touch Interface
The touch interface is I2C, driven by the ZTW523 touch IC. Verify touch I2C behavior, interrupt, and reset pins during firmware bring-up.
Display Controller ICNA3310
The ICNA3310 drives the AMOLED panel. Verify MIPI timing, TE signal, and initialization code with the official controller files.
Touch IC ZTW523
The ZTW523 handles capacitive touch over the round active area. Confirm touch sensitivity, firmware driver, and calibration with sample hardware.
Engineering Notes for Design-In
Before PCB Layout
Confirm MIPI lane routing, impedance, length matching, and grounding strategy. Check VCI, VDDIO, Vbat, touch power, reset, interrupt, and TE signal requirements, and reserve clearance for the FPC bend and connector area.
Before Tooling
Review active area, outer dimensions, black-mask position, adhesive design, and cover-lens alignment. Confirm the visible round opening matches the target product appearance, and use the STEP model with the mechanical drawing for enclosure checks.
Before Production
Validate display initialization, touch response, brightness, sleep current, and thermal behavior under expected operating temperature and power conditions. Confirm the final part number, firmware files, and approved drawing revision with DisplayModule.
Application Areas
Wearable Devices
Suitable for smartwatch-style interfaces, fitness tracking products, and other compact circular UI designs that benefit from a round full-color AMOLED with touch.
Health Monitoring Equipment
A practical choice for portable devices that need a compact full-color round display with touch support and wide viewing angles.
Industrial Interfaces
Can be used in embedded status displays, circular instrumentation, and small control panels where a round screen improves product design.
FAQ
Is the display interface MIPI or I2C?
The display interface is MIPI-1 lane. I2C is used only for the touch interface driven by the ZTW523 touch IC.
What are the listed ICs?
The display controller is ICNA3310 and the touch IC is ZTW523. Both should be verified against the official datasheet and controller files.
What power rails does the module need?
The module separates VCI (2.7–3.6 V), VDDIO (1.65–1.95 V), and Vbat (2.5–5.5 V). It is not a single 3.3 V-only device — power sequencing must be confirmed before layout.
What should be checked before PCB design?
Review MIPI lane routing, impedance, length matching, VCI/VDDIO/Vbat rails, reset, interrupt, TE signal, touch I2C, and FPC bend clearance.
What are the mechanical key dimensions?
The active area is 35.41×35.41 mm and the panel dimension is 40.3×41.8×2.45 mm. Use these for cover-lens opening, black-mask, adhesive, and enclosure checks.
Which documents should be checked first?
Start with the display datasheet, then review the ICNA3310 controller documentation, example code, and STEP model before final integration.
Download Official Files Before Final Design Approval
Confirm dimensions, interface details, controller information, voltage ranges, temperature limits, and mechanical integration data using the official resources.