Description

This powerful 4.0 inch square LCD touchscreen module boasts a vibrant 3.95 inch display with a sharp 480x480 resolution and a sleek 1:1 aspect ratio. The LCD screen uses the ST7701S as the driving IC, and the cable interface is composed of a 40-pin 3-wire SPI+RGB interface. For easier use, we have adopted a standard HD interface, which requires us to equip a HD driving board that uses the RTD2660H as the main controller. The display uses capacitive touch technology and you can enjoy vivid colors and clear images from any angle thanks to its IPS wide-viewing angle technology. It's easy to connect with its plug-and-play HD interface, working seamlessly with popular boards like Raspberry Pi, Beaglebone, and Jetson Nano.

Whether you're building a DIY project, working with embedded systems, creating medical devices, exploring industrial control, designing IoT devices, upgrading your smart home, or bringing any other creative project to life, this display is a fantastic option that delivers a comprehensive solution.

For bulk orders, OEM customization requests can be discussed for projects.

*Support multiple systems, plug and play.

4inch IPS display support multiple systems, plug and play

Pin Definition

Number	Name	Definition
1	LED A	LED ANODE
2	LED K1	LED CATHODE
3	LED K2	LED CATHODE
4	GND	Ground
5	VCI	Power Supply
6	RESET	Reset Signal, Active Low
7	NC	NC
8	NC	NC
9	SDA	SPI Data Signal
10	SCK	SPI Clock Signal
11	CS	SPI Chip Select Signal
12	PCLK	RGB Dot Clock Signal
13	DE	RGB Data Enable Signal
14	VSYNC	RGB Frame Synchronizing Signal
15	HSYNC	RGB Line Synchronizing Signal
16~33	DB0~DB17	RGB Data Signal(DB0:BIUE,LSB:DB5:BIUE, MSB;DB6:GREEN LSB:DB11:GREEN,MSB;DB12:RED,LSB; DB17:RED,MSB)
34	GND	Ground
35	TP_ INT	Touch Interrupt
36	TP_ SDA	Touch IIC Data signal
37	TP_ SCL	Touch IIC Clock signal
38	TP_ RESET	Touch Reset Signal
39	TP_VCI	Touch Power supply
40	GND	Ground

Note:SPI+RGB Interface

Feature

480*480 resolution, support capacitive touch;
Using ST7701S driver IC, supporting 3 line SPI+RGB interface;
Compatible with multiple systems (Raspbian、Ubuntu、Windows、Android、MAC OS and Chrome OS);
Plug and play, use HD interface, easy to use;
IPS full-view angle technology, providing vibrant and colorful visuals from any angle;
Suitable for various scenarios including DIY projects, embedded systems, medical devices, industrial control, IoT devices, and smart homes.

Specification

Size	3.95 inch
Resolution	480*480
Screen Type	IPS TFT LCD
Touch Type	Capacitive Touch
Viewing Angle	Full Viewing Angle
LCD Driver Chip	ST7701S
Display Driver Chip	RTD2660H
LCD Module interface	40P(3 line SPI+RGB)
HD input interface	Mini HD Interface
Power Interface	Micro USB Interface
Audio output	Double Speaker Interface
Number of pins	Plug in 40pin
Operation Voltage	3.3V
Operation Temperature	-20℃+70℃
Backlight Control Button	Yes
Active Area	71.86*70.18mm
Module Dimension	84.3*84.3mm