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This 3.95-inch (marketed as 4.0-inch) TFT LCD module with capacitive touch (CTP) is tailored for smart home panels, medical monitors, and industrial remotes. It combines 480*480 resolution (171PPI), IPS full-view, and simplified interfaces to deliver high-definition interaction at an affordable cost. | |||||||||
480*480 resolution (171PPI) ensures delicate, sharp images; IPS technology prevents color cast from any angle, ideal for multi-person viewing.
300cd/m² brightness meets indoor home needs, with clear interaction even in bright living rooms.
SPI-3W+18bit RGB interface simplifies debugging, reducing reliance on high-config MCUs and lowering device costs.
Compact size fits standard 86-type switch boxes, cutting renovation costs for old-home smart upgrades.
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In recent years, the global smart home market has shown a rapid growth trend. According to a research report released by Beijing Yanjing Bizhi Information Consulting, the global smart home market size reached 134.8 billion US dollars in 2023, an increase of 15% compared to the previous year. It is expected that by 2028, the global smart home market will exceed $200 billion, with a compound annual growth rate of around 8%. So this project is worth designing, developing, and striving to meet customer requirements.
BM-7 testing validates brightness, color, contrast, and viewing angle, ensuring consistent performance.
Tests in high/low temperature and high humidity confirm adaptability to home/industrial environments.
The model number of this module is JR-ZC040I03C, which is a 3.95-inch TFT module with CTP (capacitive touch panel) and a resolution of 480*480. It uses IPS display technology to achieve full-view viewing, and the interface type is a combination of SPI-3W and 18bit RGB. The drive IC adopted is ST7701SN, with overall dimensions of 85.6mm × 85.6mm × 4.0mm and an AA area size of 71.86mm × 70.18mm. The power supply voltage ranges from 2.5V to 3.6V, the brightness is 300TYP, and the contrast ratio is 800:1. It uses a 40PIN plug-in connection method, and the backlight circuit includes 8 LEDs with a forward current (If) of 40mA and a forward voltage (Vf) of 12V.
| Product specification information | |
| Model | JR-ZC040I03C |
| Size structure | 3.95-inch TFT+CTP | 480*480 |
| Display type/perspective | IPS | Full View |
| Interface | SPI-3W + 18bit RGB |
| Drive IC | ST7701SN |
| Overall dimensions | 85.6mm X 85.6mmX 4.0mm |
| AA area size | 71.86mm X 70.18mm |
| Power supply voltage | 2.5V~3.6V |
| Brightness | 300TYP |
| Contrast | 800 |
| Connection method | 40PIN plug-in |
| Backlight circuit | 8LED If=40mA, Vf =12 V |
This size display module is widely used in the medical field (portable health monitoring devices), smart home field (IoT central control, wall intelligent temperature control panel, security access control), industrial field (industrial remote control handle), and vehicle (electric vehicle dashboard); Among them, smart home panels are the most widely used, achieving unified management through the integration of air conditioning, lighting, curtains and other devices.
They also have color screen interaction functions, providing a comfortable viewing experience from all angles. They are small in size and can be directly embedded into standard 86 boxes or switch bottom boxes, greatly reducing the construction cost and cycle of intelligent renovation of old houses and perfectly adapting to the demand of the existing housing market.
Smart Home: IoT central controls, wall-mounted temperature panels, security access control (fits 86-type boxes).
Medical: Portable health monitors.
Industrial: Industrial remote control handles.
Automotive: Electric vehicle dashboards.
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Yes. Its compact 85.6mm × 85.6mm size fits directly into 86-type boxes, reducing old-home smart renovation costs.
It works with Alexa/Google Home via compatible IoT central control MCUs (e.g., STM32 with network modules).
171PPI delivers sharp text and icons, avoiding pixelation in smart home panels where users view details (e.g., temperature, device status) up close.