3.97 inch IPS MIPI TFT LCD Display Module - RFO400C-AYW-MNN
3.97 inch IPS MIPI TFT LCD Display Module - RFO400C-AYW-MNN

3.97" IPS MIPI TFT LCD Display Module

Model No. RFO400C-AYW-MNN

RFO400C-AYW-MNN is a 3.97-inch, vertical, IPS, active matrix TFT LCD display. Its resolution is 480x800 pixels. This display module uses IPS screen which allows users to see the display clearly at wider angles.

This 3.97-inch TFT module has driver IC ST7701S supporting 2-lane MIPI interface. MIPI (Mobile Industry Processor Interface) is a relatively new standard, mainly used in mobile device applications. The MIPI TFT LCD module introduced by Raystar has a high-speed advantage compared to the RGB interface because the DSI (Display pixel interface) defines a high-speed serial interface between the main processor and the display module.

The brightness is 600 cd/m2 with contrast ratio 900:1. Operating temperature covers from -20~+70℃, storage temperature range is from -30~+80℃.

Inquiry or Demo Code Datasheet Back Previous
  • General Specs
  • Interface Pin Function
  • Contour Drawing
  • Absolute Maximum Ratings
  • Electrical Characteristics
Item Dimension Unit
TFT Series Standard TFT LCD Display, IPS TFT LCD
Size (Diagonal) 3.97 inch
Dot Matrix / Resolution 480 × 3(RGB) × 800 dots
Module Dimension 57.14 × 96.85 × 2.15 mm
Active Area 51.84 × 86.4 mm
Dot / Pixel Pitch 0.108 × 0.108 mm
LCD Type TFT, Normally Black, Transmissive
View Direction IPS
Aspect Ratio Portrait
Backlight Type LED, Normally White
Control Board No
TFT Driver IC ST7701S
Interface 2-Lanes MIPI
Touch Panel Without Touch Screen
Surface Glare
Brightness 600 cd/㎡
Operating Temperature -20~+70 °C
Storage Temperature -30~+80 °C

 LCM PIN Definition

Pin Symbol Function
1 GND Power ground
2-5 NC No connect
6 GND Power ground
7 D0N MIPI DSI differential data pair (Data lane 0)
8 D0P
9 GND Power ground
10 CLK_N MIPI DSI differential clock pair
11 CLK_P
12 GND Power ground
13 D1N MIPI DSI differential data pair(Data lane 1)
14 D1P
15 GND Power ground
16 IOVCC I/O and interface power supply (1.8V)
17 RESET Reset input
18 TE Tearing effect output pin.
19 VCI Analog power supply
20 VCI Analog power supply
21 NC No connect
22 LEDK Power for LED backlight cathode
23 LEDA Power for LED backlight anode
24 GND Power ground

3.97 IPS MIPI TFT LCD Display Module - RFO400C-AYW-MNN

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

Operating conditions

Item Symbol Values Unit
Min. Typ. Max.
Interface Supply Voltage VCI 2.8 - 3.3 V
Power voltage IOVCC 1.65 1.8 3.3 V
Current for Driver(White) IDD - 11 16.5 mA


LED driving conditions

Parameter Symbol Min. Typ. Max. Unit
LED current ILED - 40 - mA
LED voltage VLED+ 13.5 15 17 V
LED Life Time   50,000 - - Hr