Home Products TFT Display Round TFT LCD Display WFN0400A2T0YAMNA000

4-inch Round Touch Screen TFT LCD Display with Optical Bonding

Model No. WFN0400A2T0YAMNA000

►4 inch Touch Screen Display, 4 inch LCD Screen
►Size: 4 inch Screen
►Resolution : 720x720 dots
►View Direction : 85/85/85/85 (IPS)
►Interface : MIPI DSI
►Driver IC : FL7703
►Control-Board : No
►Brightness (cd/m²): 320
►Frame Through Hole : No
►Touch Screen : Projected Capacitive Touch Panel (PCAP) + Optical bonding
►Detect Point : 4 Finger

Description

The WFN0400A2T0YAMNA000 is an innovatively designed 4-inch touch screen display module with a 720x720 resolution, delivering clear and detailed visuals on a round screen. This makes it ideal for applications requiring a unique display form factor and high resolution.

This 4-inch touch screen TFT LCD module features IPS technology, offering an ultra-wide viewing angle of 85°/85°/85°/85°. This ensures vibrant and clear images, regardless of the viewing angle. With a typical brightness of 320 cd/m² and a high contrast ratio of 1200:1, the display is exceptionally bright and highlights details more effectively.

Built-in FL7703 TFT driver IC and supporting 4-Lanes MIPI DSI interface, the module allows for high-speed data transmission while maintaining high resolution, ensuring smooth visual performance. The 4-Lanes MIPI interface not only provides fast data transfer but also reduces power consumption, which is essential for devices that need to run for extended periods.

On the touch functionality side, the WFN0400A2T0YAMNA000 is equipped with a Projected Capacitive Touch Panel (PCAP) and incorporates Optical Bonding technology. Optical bonding enhances touch sensitivity and significantly improves display clarity. By removing the air gap between the display module and the touch panel, this technology improves optical transparency, reduces reflections, and ensures faster touch response with clearer visuals.

Additionally, the module supports 4-point touch and features an FT3269 touch driver IC along with an I2C interface, making it easy to integrate with various systems and ensuring stable touch performance.

The WFN0400A2T0YAMNA000 4-inch TFT LCD screen display combines a unique round design, excellent display performance, and advanced touch technology. With the 4-Lanes MIPI DSI interface and Optical Bonding technology, this display module not only provides superior display quality but also offers efficient data transmission and enhanced durability. It is perfect for applications in industrial, smart home, and other fields.

DRAWING

4 inch Screen, 4 inch LCD Screen, 4 inch Touch Screen Display with Optical Bonding - WFN0400A2T0YAMNA000

SPECIFICATIONS

General Specifications

Item Dimension Unit
Size 4.0 inch
Dot Matrix 720 x RGB x 720 (TFT) dots
Module dimension 125.0 x 125.0 x 3.86 mm
Active area 101.52 x 101.52 mm
Pixel pitch 0.141 x 0.141 mm
LCD type TFT, Normally Black, Transmissive
Viewing Angle 85/85/85/85
TFT Interface 4-Lanes MIPI
Backlight Type LED, Normally White
TFT Driver IC FL7703
CTP Driver IC FT3269
CTP Interface I2C
CTP FW Version 0x21
CTP Resolution 720*720
Touch Panel Projected Capacitive Touch Panel
Surface Glare

Absolute Maximum Ratings

Item Symbol Min Typ Max Unit
Operating Temperature TOP -20 +70
Storage Temperature TST -30 +80

Electrical Characteristics

Operating conditions

Item Symbol Min. Typ. Max. Unit
Digital supply Voltage IOVCC 1.65 1.8 3.3 V
Analog supply Voltage VCI 2.8 3.0 3.3 V
TP Power TP_VCI 2.8 3.0 3.3 V
Input Signal Voltage Low
Level
VIL 0 - 0.3 x IOVCC V
High
Level
VIH 0.7 x IOVCC - IOVCC V
Current of digital supply voltage IIOVCC - 15 20 mA
Current of analog supply voltage IVCI - 35 50 mA
 

LED driving conditions

Item Symbol Min. Typ. Max. Unit
LED current - - 40 45 mA
LED voltage VLED+   15.5 16.0 V
Backlight Power Consumption WBL - 600 720 mW
LED Life Time - 30,000 - - Hr

Interface

LCM PIN Definition

Pin No Symbol Description
1 VLED+ LED Anode
2 VLED- LED Cathode1
3 VLED- LED Cathode2
4 VCI Power Supply 2.8V
5 IOVCC LCD I/O power supply(1.8V)
6 RESET Reset pin
7 TE Tearing effect(1.8V)
8 NC No connection.
9 GND Ground
10 D0P MIPI DSI differential data pair (Data lane 0)
11 D0N MIPI DSI differential data pair (Data lane 0)
12 GND Ground
13 D1P MIPI DSI differential data pair (Data lane 1)
14 D1N MIPI DSI differential data pair (Data lane 1)
15 GND Ground
16 CLKP MIPI DSI differential clock pair
17 CLKN MIPI DSI differential clock pair
18 GND Ground
19 D2P MIPI DSI differential data pair (Data lane 2)
20 D2N MIPI DSI differential data pair (Data lane 2)
21 GND Ground
22 D3P MIPI DSI differential data pair (Data lane 3)
23 D3N MIPI DSI differential data pair (Data lane 3)
24 GND Ground
25 TP_INT Touch Interrupt
26 TP_SDA Touch IIC Data signal
27 TP_SCL Touch IIC Clock signal
28 TP_RESET Touch Reset Signal
29 TP_VCI Touch Power supply
30 NC No connection.
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