PL0316IV0-SV1-RGB 3.16-inch TFT-LCD display module, 820x320 resolution, front view (powered on).
3.16-inch TFT-LCD Display Module 820×320 Parallel RGB $1.90piece
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10.1-inch High-Brightness TFT LCD 800×1280 MIPI Display $100.00piece
4.0-inch 480×480 square TFT-LCD display module front view
4.0-inch 480×480 square TFT-LCD showing colorful UI tiles
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4.0-inch 480×480 square TFT-LCD display module front view
4.0-inch 480×480 square TFT-LCD showing colorful UI tiles

4.0-inch Square TFT-LCD Display Module 480×480 SPI+RGB

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$15.00piece

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Description

Model: PL040WQI-H401-R4018

The 4.0-inch square TFT-LCD display delivers clear, balanced visuals with a 480×480 (RGB) resolution and 262K colors, making it a solid choice for compact embedded interfaces. With a 3SPI + Parallel RGB interface and a slim 84.3 × 84.3 × 3.2 mm outline, this module supports efficient integration in space-limited designs. It features the ST7701S driver IC and an 8-LED backlight (4S2P) driven by constant current (IF = 40 mA typ / 45 mA max, VF = 12.8 V typ). A wide operating temperature range (-20 to +70°C) helps ensure stable performance in demanding environments.

Application

Embedded HMI | Industrial Control | Medical Devices | Instrumentation | Smart Home Panels

Customized Options

FPC  | Touch Panel | Cover Glass | Controller Board | Brightness

Dimension drawing of 4.0-inch 480×480 square TFT-LCD module
4.0-inch 480×480 square TFT-LCD running demo on controller board

UART Display Board for PL040WQI-H401-R4018 Integration

Gesight offers a dedicated UART Display solution for the PL040WQI-H401-R4018 4.0-inch 480×480 square TFT-LCD module, providing a clean, plug-and-play path for quick UI bring-up and system validation. The green controller board helps engineers evaluate image quality, brightness, and viewing angles while reducing wiring complexity during early-stage prototyping.

Built around the module’s 3SPI + Parallel RGB architecture, the board is designed to streamline host communication: developers can send display and control commands through a simple UART link, enabling fast screen initialization, UI updates, and demo playback without heavy driver development on day one. This approach is ideal for rapid proof-of-concept builds, factory test setups, and embedded products that prefer a lightweight serial control path.

For projects with mechanical or functional requirements, Gesight can support board customization, including connector alignment, mounting-hole layout, and firmware behavior (boot logo / test patterns / UI demo) to match your enclosure and integration workflow.

Capacitive Touch Panel (CTP) Option for PL040WQI-H401-R4018

To enable interactive UI designs on the PL040WQI-H401-R4018 4.0-inch 480×480 square TFT-LCD, Gesight can support an optional Capacitive Touch Panel (CTP) solution for projects that require smooth multi-touch input and a modern user experience. This CTP option is designed for compact embedded devices where touch responsiveness and front-surface durability matter.

The touch interface is implemented via a dedicated I²C (SCL/SDA) connection with INT and RESET signals for stable communication and reliable wake/control behavior. The touch controller reference in the module documentation includes GT911, allowing easy MCU integration and straightforward firmware bring-up for common touch functions such as tap, swipe, and gesture-based navigation.

For product-level integration, Gesight can also support custom touch lens and cover glass options, including thickness tuning, edge treatment, and optical matching to help align the touch stack with your enclosure design and target UI feel.

4.0-inch 480×480 square TFT-LCD module mounted on board, front view
Specifications
Size

4.0inch
Pixels

480(RGB) × 480
Interface

,

Brightness

420 min / 450 typ cd/m²
Manufacturer

Gesight
Display Type

TFT-LCD
Display Mode

Normally Black
Color Depth

Refresh Rate

60 Hz
Viewing Angle Range

80° (T) / 80° (B) / 80° (L) / 80° (R), CR ≥ 10
Outline L*W*H

84.3 * 84.3 * 3.2 mm
Active Area L*W

71.86 * 70.18 mm
Supply Voltage

VDD = 2.8 min / 3.3 typ / 3.6 max V
Consumption

IDD = 50 mA max (VDD = 2.8 V, Ta = 25°C); Backlight IF = 40 typ / 45 max mA, VF = 12.8 V (typ)
Operating Temperarure

-20 ~ 70 ℃
Storage Temperature

-30 ~ 80 ℃
Bezel Area (mm)

–
Aspect Ratio

1:1
Connection Type

0.5 PITCH connector
IC package

–
Touch Panel

Orientation

Pixel Pitch

–
Sunlight Readable

–
Model

PL040WQI-H401-R4018
PPI ( pixels per inch )

–
Application

–
Pins Description
Pin No. Pin Name Description
1 LEDA LED Anode
2 LEDK1 LED Cathode
3 LEDK2 LED Cathode
4 GND Ground
5 VCI Power Supply
6 RESET Reset Signal, Active Low
7 NC No Connect
8 NC No Connect
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 Signals (DB0: Blue LSB; DB5: Blue 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
Electrical Characteristics

Electrical Characteristics (Driving TFT LCD Panel)

Item Symbol Min Typ Max Unit Test condition
Operating voltage VDD 2.8 3.3 3.6 V —
Supply current IDD — — 50 mA VDD = 2.8 V, Ta = 25°C
Input voltage (High) VIH 0.8VDD — VDD V —
Input voltage (Low) VIL 0 — 0.2VDD V —
Input leakage current IIL -1.0 — 1.0 µA VIN = VDD or VSS

Backlight Specification(Driving Backlight, Ta = 25°C)

Item Symbol Min Typ Max Unit Remark
Forward Current IF — 40 45 mA —
Forward Voltage VF — 12.8 — V —
Connection mode — — 4S2P — — LED number / 8 pcs

See TFT-LCD Collection

From 1.09 inch to 32 inch, all the size you need !

View Collection

FAQ

Where can I buy this display？

If you just need a few samples, it`s better to directly on our Aliexpress store, we are 5 stars feedback supplier with 100% Honesty. (The buy link is on the right of the product image)
For bulk orders, it`s better to contact us and get a better price. 

Different displays have different characteristics, just tell Gesight Display your application, and operating environment, Gesight Display will suggest a suitable display for you.

Gesight Display provide HDMI/Type-C controller board or individual demo kit to test.
The pictures of demo kit can be changed by yourself. 

Gesight Display will provide necessary specifications for most LCD/OLED on sale, including,
Display Datasheet
Display Drawing
IC Datasheet
Circuit schematic
For most electronics engineers, our specifications are enough to run the display, and we will provide some assistance.
But Gesight Display is not a school, if customers don`t know the basic knowledge to design circuit boards, we suggest using our controller board to drive the display.

First, you need to check whether this display has On-cell or In-cell touch panel, if has, it only needs to add a cover glass on it. If not, it needs an external touch panel.
(On-cell and In-cell are integrated PCAP touch panels on the display screen)
Because the shape of the cover glass depends on the design of the clients, to avoid infringement of appearance,  most of the developers need different customized touch panels.
Gesight Display can provide a customized touch screen with a low cost of tooling charge.

1. UPS/Fedex/DHL/TNT, the best choice for most clients, 3~7 days to arrive.
2. Aliexpress standard ship, this way is cheap and slow, usually take more than 10 days. Only for samples.
3. For Russian clients, EMS or Aliexpress shipment is better.
4. Any designated logistics are acceptable
 

Most display panels are from giant manufacturers such as BOE, Sharp, LG, EDO, AUO, etc. They have already tested with strict standards.
For OEM products from Panox Display factory, please check the quality test standards.   

The lifetime is different on different images, check the lifetime on datasheet to study it. 

If your Raspberry Pi can support the interface of the display panel, and you know how to program on Raspberry Pi, you can connect to our display.
If you don`t know or don`t want to write a display program on Raspberry Pi, it`s better to get an HDMI controller board from us, and Panox Display will send a config.txt file for reference.
 

lcd_connectors

Free convertor board and Connectors

Fast Shipping

Most of our clients are manufacturers purchasing our displays for their applications, who are willing to get samples as soon as possible.

Different products collocations have different package, please confirm the shipping cost with us when place an order.

(4~6 days for most countries and area)

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Specification

Panox Display offers the following specifications for most LCD/OLED products:

  • Display datasheet

  • Mechanical drawing

  • IC datasheet

  • Circuit schematic

TFT-LCD: More Choices for Every Need

Unlike OLED displays, which often have only a few models for each size, the TFT LCD screen market offers a wide variety. After many years of continuous production by Chinese OEM manufacturers, there are countless TFT LCD display options for almost every size, with different resolutions, brightness levels, and specifications. Whether you need high brightness for outdoor use, fine resolution for industrial applications, or cost-effective solutions for consumer products, a TFT LCD module is available to meet your requirements. and vivid image, and consistent display from any angle.

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lcd display structure

Structure of a TFT-LCD

A TFT-LCD display is made of multiple precise layers, each serving a unique function. Starting from the viewing side, the polarizer controls light polarization, while the first glass substrate supports the color filter layer that creates red, green, and blue subpixels. Beneath this is the transparent common electrode and the transparent display electrode, which work together to control light transmission.

The active layer contains the thin-film transistor (TFT) and storage capacitor, connected through the gate (row) line and source (column) line to drive each pixel. A second glass substrate supports this circuit. Behind the panel, a diffuser spreads light evenly, while the backlight provides the illumination necessary for the display to be visible. Finally, another polarizer fine-tunes light before it exits the screen, ensuring clear, bright images.

By combining these layers into a single TFT-LCD module, manufacturers achieve sharp resolution, accurate colors, and consistent brightness for a wide range of applications.

About Us

Gesight is a high-tech company specializing in OLED, LCD displays. Integrated with display marketing and sales, customized LCD OEM manufacturing, driver board development, customized TP, etc.

After six years of effort and development, we have grown up to a certain size, now we have a service team with excellent service quality, professional technical service.

After several years of steady development, Gesight has served hundreds of customers from different places all over the world. Including big companies such as Bosch, Nokia, Garmin, Circuits, and countless small and medium-size companies or electronics DIYers.

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strict_quality_gesight

Say No to any bright/dart dots on screen !!
Strict Quality Control


We implement strict quality control through every stage of production and inspection. Each display undergoes rigorous testing to eliminate any pixel defects, including bright, dark, or stuck dots. Our professional QC team uses advanced optical equipment to ensure flawless screen performance, delivering only high-reliability LCD and OLED panels to our customers.

Strict quality control

Rigorous testing

Flawless screen performance

High-reliability

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