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FN0143E001A Round AMOLED Display - Packaging

1.43" Round AMOLED Display Module for Smartwatch Applications

Name: 1.43" Round AMOLED Display Module for Smartwatch Applications
Brand: FANNAL
Rating: 5.0 (51 reviews)

1.43" Round AMOLED Display 466×466 | Smartwatch AMOLED Module

Model:
FN0143E001A
Brand:
FANNAL
Size(inch):
1.43
Display AA(mm):
36.35*36.35
Operation Temp(℃):
-20~70
Storage Temp(℃):
-30~80
Resolution:
466×466
TP Interface:
QSPI
Brightness(cd/m²):
750

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Availability:





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Round AMOLED Display

Drawing & Specifications

Applications

Case Study

Customizations

FAQ

Drawing

Specifications

Item	Specification	Unit
Diagonal size	1.43	inch
Resolution	466×466
Display color	16.7M (RGB × 24bits)	-
Pixel arrangement	Real RGB arrangement	-
Interface	QSPI	-
Driver IC	CO5300	-
Dimension outline	40.30(V) × 40.60(W) × 2.325(T)	mm
LTPS Glass outline	39.23(V) × 39.15(W)	mm
Encapsulation Glass outline	39.15(V) × 39.15(W)	mm
Active area	Φ36.35	mm
Pixel pitch	78 × 78	μm
Glass thickness	0.5	mm
Operation Temp	-20~70	℃
Storage Temp	-30~80	℃
Luminance	750 cd/m² (TYP), 700 cd/m² (MIN)	cd/m²
Environmental Compliance	ROHS & HALOGEN FREE	-

Power Characteristic

Item	Symbol	Min.	Typ.	Max.	Unit	Remark
AMOLED Power	ELVDD	3.25	3.3	3.35	V	Positive
AMOLED Power	ELVSS	-3.3	-3.3	-3.35	V	Ref Negative
Digital Power Supply	VDDIO	1.7	1.8	1.95	V	Ref
Analog Power Supply	VCI	3.25	3.3	3.35	V	Ref

Main FPC Bonding PAD Define

Pin No.	Symbol	I/O	Function Description
1	ELVSS1	Power	AMOLED power Negative
2	ELVSS2	Power	AMOLED power Negative
3	ELVDD1	Power	AMOLED power Positive
4	ELVDD2	Power	AMOLED power Positive
5	FOG	-	Test pin
6	FOG/FOF	-	Test pin
7	FOF	-	Test pin
8	VREFP5	Power	No connection
9	VREFN5	Power	OLED drive voltages
10	BVP3D	Power	AMOLED power Positive in idle mode
11	BVN3D	Power	AMOLED power Negative in idle mode
12	VCL	Power	Driver IC internal power
13	VREF	Power	Driver IC internal power
14	VCI	Power	Driver IC analog supply
15	VCI	Power	Driver IC analog supply
16	TE1	O	Tearing effect output pin
17	SWIRE	O	Swire protocol setting pin of Power IC
18	TE	O	Tearing effect output pin
19	RESX	-	This signal will reset the device and must be applied to properly initialize the chip. Signal is active low.
20	SDO	O	Serial output signal in SPI I/F. The data is output on the rising/falling edge of the SCL signal.
21	SDI_RDX	I	Serial input signal in SPI I/F. The data is input on the rising edge of the SCL signal.
22	DCX	I	Display data / command selection in 80-series MPU I/F and 4-wire SPI I/F. D/CX = "0": Command; D/CX = "1": Display data or Parameter
23	WRX_SCL	I	A synchronous clock signal in SPI I/F.
24	CSX	I	Chip select input pin ("Low" enable)
25	D0	I/O	8-bit-directional data bus for 80-series MPU I/F and 8-bit input data bus for RGB I/F
26	D1	I/O	8-bit-directional data bus for 80-series MPU I/F and 8-bit input data bus for RGB I/F
27	IM1	I	Interface type selection.
28	IM0	I	Interface type selection.
29	DSWAP	I	Input pin to select HSSI_D0/D1 data lane sequence in high speed interface only
30	PSWAP	I	Input pin to select HSSI_D0/D1 data lane polarity in high speed interface only
31	VDDIO	Power	Driver IC digital I/O supply
32	VDDIO	Power	Driver IC digital I/O supply
33	DVDD	Power	Driver IC analog supply
34	DGND	Power	The power ground
35	HSSI_D1_P	I/O	These pins are DSI-D1+/- differential data signals
36	HSSI_D1_N	I/O	These pins are DSI-D1+/- differential data signals
37	AGND1	Power	The power ground
38	HSSI_CLK_P	I	These pins are DSI-CLK+/- differential clock signals
39	HSSI_CLK_N	I	These pins are DSI-CLK+/- differential clock signals
40	AGND2	Power	The power ground
41	HSSI_D0_P	I/O	These pins are DSI-D0+/- differential data signals
42	HSSI_D0_N	I/O	These pins are DSI-D0+/- differential data signals
43	AGND3	Power	The power ground
44	C11P	-	Capacitor connection pins for the step-up circuit which generate AVDD
45	C11N	-	Capacitor connection pins for the step-up circuit which generate AVDD
46	C12P	-	Capacitor connection pins for the step-up circuit which generate AVDD
47	C12N	-	Capacitor connection pins for the step-up circuit which generate AVDD
48	AVDD	Power	Driver IC internal power
49	C31P	-	Capacitor connection pins for the step-up circuit which generate VCL
50	C31N	-	Capacitor connection pins for the step-up circuit which generate VCL
51	C32P	-	Capacitor connection pins for the step-up circuit which generate VCL
52	C32N	-	Capacitor connection pins for the step-up circuit which generate VCL
53	C41P	-	Capacitor connection pins for the step-up circuit which generate VGH
54	C41N	-	Capacitor connection pins for the step-up circuit which generate VGH
55	C51N	-	Capacitor connection pins for the step-up circuit which generate VGL
56	C51P	-	Capacitor connection pins for the step-up circuit which generate VGL
57	VGH	Power	Driver IC internal power
58	VGHR	Power	Driver IC internal power
59	Dummy	-	NC
60	VGLR	Power	Driver IC internal power
61	VGL	Power	Driver IC internal power
62	AGND4	Power	The power ground
63	MTP_PWR	Power	Power supply for OTP. Leave the pin to open when not in use.
64	FOG	-	Test pin
65	FOG/FOF	-	Test pin
66	FOF	-	Test pin
67	ELVDD3	Power	AMOLED power Positive
68	ELVDD4	Power	AMOLED power Positive
69	ELVSS3	Power	AMOLED power Negative
70	ELVSS4	Power	AMOLED power Negative

TP FPC Bonding PAD Define

Pin No.	Symbol	I/O	Function Description
1	FOG1	-	FOG test pin
2	FOG2	-	FOG test pin
3	GND1	P	The power ground
4	GND2	P	The power ground
5	Y07	-	TP signal
6	Y06	-	TP signal
7	GND3	P	The power ground
8	X00	-	TP signal
9	X01	-	TP signal
10	X02	-	TP signal
11	X03	-	TP signal
12	X04	-	TP signal
13	X05	-	TP signal
14	GND4	P	The power ground
15	Y00	-	TP signal
16	Y01	-	TP signal
17	Y02	-	TP signal
18	Y03	-	TP signal
19	Y04	-	TP signal
20	Y05	-	TP signal
21	GND5	P	The power ground
22	X07	-	TP signal
23	X06	-	TP signal
24	GND6	P	The power ground
25	GND7	P	The power ground
26	FOG3	-	FOG test pin
27	FOG4	-	FOG test pin

Applications

Smart Wearables (Proven Application)

Designed for compact, high-end wearable devices requiring high resolution, low power consumption and premium visual performance.

Smartwatches
Fitness trackers
Health monitoring devices

With 466×466 resolution and real RGB arrangement, the display delivers sharp UI rendering and smooth graphical performance, suitable for advanced smartwatch interfaces and always-on display modes.

Outdoor & High-Brightness Wearable Devices

Optimized for wearable devices used in outdoor or high ambient light environments.

Outdoor smartwatches
Sports wearables
Field-use monitoring devices

The 750 nits brightness (typ.) ensures clear visibility even under direct sunlight, addressing a common limitation of standard AMOLED displays in outdoor scenarios.

Compact Embedded & Portable Devices

A suitable solution for space-constrained embedded systems requiring circular UI design.

Handheld instruments
Portable testing devices
Mini control terminals

The QSPI interface enables faster data transmission with reduced pin count, simplifying system integration for embedded platforms.

Specialized Circular UI Applications

Supports product designs where circular displays enhance usability or aesthetics.

Smart home controllers
IoT control panels
Industrial wearable terminals

The on-cell touch integration reduces module thickness and improves optical performance, enabling more compact and reliable product design.

Building control panels, elevator displays, security monitoring stations, access control interfaces, energy management terminals

Automotive Display

Kiosk touch screen

Railway display

E-bike display

Outdoor display

Industrial display

Medical touch screen

Gym-screen

Engineering Plant

Motorcycle display

Vending Machine Display

Embedded display

Case Study

Project Background

A wearable device manufacturer required a compact, high-resolution round display for a next-generation smartwatch focused on outdoor usability and premium UI experience.

Key requirements included:

High pixel density for detailed UI rendering
Sufficient brightness for outdoor visibility
Thin module structure for lightweight design
Simplified integration with embedded mainboard

Challenges

1. Outdoor Visibility Limitation of AMOLED
Standard AMOLED displays often struggle under strong ambient light.

2. Space Constraints in Compact Wearable Design
Limited internal space required a thinner and highly integrated display solution.

3. Interface Complexity
Traditional interfaces increase pin count and complicate PCB design in small devices.

FANNAL Solution

High-Brightness AMOLED Panel (750 nits)
Improved outdoor readability compared to conventional AMOLED solutions
On-cell Touch Integration
Reduced overall module thickness and simplified assembly
QSPI Interface Implementation
Lower pin count and faster communication for compact embedded systems
466×466 High Resolution with Real RGB
Enhanced UI clarity and visual performance

Results

Improved display visibility in outdoor environments
Reduced module thickness and overall device weight
Simplified system integration and PCB layout
Enhanced user experience with sharper UI rendering

AMOLED Display Customization Capabilities

Unlike TFT LCD modules, AMOLED displays are typically based on fixed panel specifications. Customization focuses on module integration, mechanical design and system compatibility.

Customization Capability Comparison

Category	TFT LCD	AMOLED
Panel Selection	Highly flexible	Limited to available models
Brightness Design	Fully customizable	Panel-dependent
Touch Structure	Fully customizable	Mostly integrated (on-cell)
Optical Stack	Flexible	Semi-fixed
Interface Options	Wide (RGB, LVDS, eDP)	Limited (MIPI, QSPI)
Customization Depth	High	Moderate

Panel Selection

Based on available AMOLED panel sizes and resolutions
Stable supply from selected panel partners

FPC & Interface Customization

Custom FPC design (shape, pin definition)
QSPI / MIPI interface support
Signal optimization for embedded systems

Touch & Cover Integration

Mechanical & System Integration

Ultra-thin module design
Structural adaptation for wearable devices
Support for compact embedded applications

FAQ

What are the advantages of using a 1.43" round AMOLED display in smartwatch designs?

It provides high contrast, deep blacks, and a premium visual experience in a compact circular form. This improves UI readability and aesthetic appeal in wearable devices.

Compared to TFT LCD, AMOLED eliminates the need for a backlight, enabling thinner modules and better power efficiency in dark-mode interfaces. However, engineers should consider burn-in risk and brightness limitations under strong sunlight when designing always-on displays or outdoor wearables.

Does this AMOLED display support touch functionality, and how is it integrated?

Yes, it features integrated on-cell touch technology within the display panel. This reduces module thickness and simplifies system integration.

Unlike external touch panels (G+G or G+F+F), on-cell touch limits structural customization but improves optical clarity and reliability. Firmware tuning and cover lens design remain key optimization areas for sensitivity, waterproof performance, and glove touch use cases.

Is 750 nits brightness sufficient for outdoor smartwatch visibility?

Yes, 750 nits is generally sufficient for outdoor readability in most wearable applications. It balances visibility and power consumption.

While AMOLED displays typically struggle under direct sunlight compared to high-brightness TFT solutions, this level of luminance is optimized for wrist-worn devices. Engineers can further improve visibility through UI contrast design, anti-reflective (AR) coatings, and ambient light sensor-based brightness adjustment.

What interface does this AMOLED module use, and how does it impact system integration?

This display uses a QSPI interface, enabling high-speed communication with reduced pin count. It is well-suited for compact embedded systems.

Compared to RGB or LVDS interfaces in TFT modules, QSPI simplifies PCB routing and reduces connector complexity. However, system designers must ensure compatibility with the host MCU and optimize firmware for efficient frame buffer management and refresh rate performance.

What customization options are available for this AMOLED display module?

Customization focuses on module integration rather than panel-level changes. Key areas include FPC design, cover lens, and firmware optimization.

Unlike TFT LCDs, AMOLED panels have fixed size and resolution constraints. Engineers can customize mechanical structure, pin definition, optical bonding, and touch sensitivity tuning. This makes AMOLED suitable for application-driven optimization rather than full structural redesign.

What should engineers consider when integrating AMOLED displays into wearable devices?

Thermal management, power consumption, and lifetime performance are critical factors. These directly affect reliability in compact devices.

AMOLED panels are sensitive to heat and prolonged static content, which may lead to burn-in over time. Proper UI design (pixel shifting, dark mode), power management, and enclosure thermal design are essential. Environmental factors such as operating temperature range and outdoor usage conditions should also be validated early in the design phase.