1.28-Inch Round TFT LCD Module – 240×240 with SPI Interface

This 1.28-inch round TFT LCD module features a 240×240 resolution, full 80° viewing angles, and SPI interface options. It is designed for compact smartwatches, wearable devices, small appliances, and IoT applications requiring circular displays. The anti-glare surface and ultra-slim 1.56mm profile make it an excellent choice for space-constrained products.

Key Features

Round Form Factor – 1.28-inch circular active area with 240×240 resolution for watch-type and wearable displays
Full Viewing Angles – 80°/80°/80°/80° viewing angles for consistent image quality from all directions
SPI Interface – Simple 4-wire serial interface for easy integration with most microcontrollers
Ultra-Slim Profile – 1.56mm module thickness for space-constrained designs
Wide Operating Temperature – -20°C to +70°C for demanding environments
Anti-Glare Surface – Reduces reflections for improved readability in various lighting conditions
Normally Black TFT – Excellent contrast and deep blacks for vivid imagery
Compact Module Size – 35.60 x 37.74 mm module footprint
GC9A01 Driver IC – Dedicated driver optimized for small circular TFT displays

Technical Specifications

Parameter	Specification
Size	1.28-inch diagonal
Dot Matrix	240 x RGB x 240
Module Dimension	35.60 x 37.74 x 1.56 mm
Active Area	32.40 x 32.40 mm
Dot Pitch	0.043 x 0.135 mm
LCD Type	TFT, Normally Black, Transmissive
Viewing Angle	80°/80°/80°/80° (Full)
Interface	SPI
Driver IC	GC9A01
Backlight Type	LED, Normally White
Touch Panel	Without Touch Panel
Surface Treatment	Anti-Glare
Operating Temperature	-20°C to +70°C
Storage Temperature	-30°C to +80°C
Power Supply Voltage (VCI)	2.7V ~ 3.3V (Typ. 2.8V)

Pin Interface

Pin	Symbol	Function
1-6	NC	No Connection
7	VLED+	Backlight Positive
8	VLED-	Backlight Negative
9	GND	Ground
10	CS	Chip Select
11	SCL	Serial Clock
12	SDA	Serial Data
13	RS	Register Select
14	TE	Tearing Effect Signal
15	RESET	LCD Reset Signal
16	VCI	Power Supply (3.3V)
17	NC	No Connection
18	GND	Ground

Applications

This round TFT LCD module is designed for a variety of consumer and industrial applications where circular displays are required:

Smartwatches and Wearable Devices – The round form factor and ultra-slim 1.56mm profile make it ideal for smartwatches and fitness bands
Small Appliances – Suitable for display panels on coffee machines, air purifiers, and other smart home appliances
IoT Products – Compact size and SPI interface enable easy integration into IoT devices
Portable Instruments – Low-power operation and small footprint ideal for handheld test equipment
Consumer Electronics – Perfect for circular display applications in various consumer devices

Customization Options

We offer flexible customization to meet specific project requirements:

Touch Panel – Resistive or capacitive touch panel integration available upon request
Brightness – Backlight brightness can be customized for different environments
Interface – Alternative interface options available depending on requirements
FPC – Custom FPC length and connector options available
Operating Temperature – Extended temperature range versions available for industrial applications
Surface Treatment – Optional surface treatments including anti-reflective coating

Selection Guide

When selecting this round TFT LCD module for your project, consider the following factors:

Display Orientation – Round display with 240×240 resolution supports full 360° viewing
Interface Compatibility – SPI interface requires 4 signal lines (CS, SCL, SDA, RS) plus power and backlight connections
Power Requirements – VCI voltage range 2.7V to 3.3V, compatible with most 3.3V systems
Operating Environment – Temperature range -20°C to +70°C suitable for consumer and mild industrial applications
Touch Integration – Touch panel not included, but available as a customization option
Mounting Space – Module dimension 35.60 x 37.74 mm, verify mechanical clearance in your design

Frequently Asked Questions

What is the viewing angle of this TFT display?

This display offers full 80°/80°/80°/80° viewing angles, providing excellent visibility from all directions.

Does this module include a touch panel?

This version does not include a touch panel. However, touch panel integration is available as a customization option. Please contact our sales team for details.

What interface does this display use?

The module uses a 4-wire SPI interface with CS, SCL, SDA, and RS signals. The TE (tearing effect) signal is also available for frame synchronization.

What is the operating temperature range?

The operating temperature range is -20°C to +70°C, with storage temperature from -30°C to +80°C.

Can you provide samples?

Yes, sample units are available for evaluation. Please submit your requirements through the sample request form.

Is driver support available?

Yes, we provide initialization code, datasheets, and technical support for integration. The GC9A01 driver IC is well-supported with readily available driver libraries.