Description
The SF-TC400B-8951A-N is a 4-inch square IPS TFT-LCD display module with a resolution of 480 x 480 pixels. It supports an RGB SPI Serial interface and features an IPS panel, providing wider viewing angles of 80 degrees in all directions (left, right, up, down). The contrast ratio is typically 800:1, with a brightness of 4200 nits (typical value) and a glare surface panel. The aspect ratio is 1:1.
The display integrates the driver IC ST7701S on the module, with an interface supply voltage range of 2.5V to 3.6V (typical value 2.8V). The module can operate within temperatures ranging from -20°C to +70°C, and its storage temperatures range from -30°C to +80°C.
Product Features:
| Product: | 4 Inch TFT Square Display |
| Resolution: | 480*480 |
| Viewing Direction: | All Viewing Angle, IPS |
| Pin Number: | 40 Pins |
| Surface Luminance: | 420 Cd/m2(nits) Typical |
| Touch Screen: | Without Touch (With CTP Optional) |
| Cover Glass Dimension: | Customizable |
| Interface: | RGB+SPI (MIPI interface optional) |
| Connection: | ZIF |
| LED Lifetime: | 40,000 Hours |
4″ inch Capacitive touchscreen TFT module RGB&SPI Product Drawing
Electrical-optical Characteristics
| Item | Symbol | MIN | TYP | MAX | UNIT | Test
Condition |
Note |
| Supply Voltage | Vf | 2.8 | 3.3 | 3.6 | V | If=80MA | – |
| Supply Current | If | – | 50 | mA | – | – | |
| Reverse Voltage | Vr | – | – | 5 | V | – | |
| Input Voltage | Vih | 0.8VDD | VDD | V | – | ||
| Vil | 0 | 0.2VDD | V | ||||
| Input leakage current | Vil | -.01 | 1 | V | |||
| Without CTP |
Reliability Test
| Item | Condition | Time (hrs) | Assessment |
| High temp. Storage | 80°C | 120 |
No abnormalities in functions and appearance |
| High temp. Operating | 70°C | 120 | |
| Low temp. Storage | -30°C | 120 | |
| Low temp. Operating | -20°C | 120 | |
| Humidity | 60°C/ 90%RH | 120 | |
| Thermal Shock Temp. Cycle | -20°C ¬ 25°C ®70°C
(0.5 hour ¬ 5 min ® 0.5 hour) |
10cycles | |
4″ inch Capacitive touchscreen TFT module RGB&SPI Product Image
this LCD also designed to be with CTP, pls check the photos demonstration below, its part number is SF-TC400B-8951A-CT
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