4.0″ IPS Display, Square Type 480×480, 350 Nits without Touch Panel
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S040HWV08NN
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4.0"丨480 x 480 Pixels
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IPS with All viewing angle
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None
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24-bit RGB
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None
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-20°C~+70°C
Product Description
Key Features
Square Display for Modern UI Design
- 1:1 aspect ratio for balanced interface layouts
- Suitable for smart home and embedded control systems
- Optimized for modern graphical UI designs
IPS Full Viewing Angle
- Clear visibility from all directions
- Consistent color and contrast performance
- Improved usability in shared-view applications
Stable RGB Interface
- 24-bit RGB interface for smooth data transmission
- Suitable for embedded processors and HMI platforms
- Reliable performance for graphical interfaces
Compact and Space-Efficient
- Square structure improves layout flexibility
- Ideal for compact embedded devices
- Simplifies industrial and smart device design
Typical Use Cases
- Smart Home Control Panels
- Industrial HMI Systems
- Smart Appliances
- Portable Medical Devices
- Embedded IoT Devices
Why Choose a Square TFT LCD Display?
Square TFT LCD displays are increasingly used in modern UI-driven devices because they provide:
- Better interface symmetry
- More efficient content layout
- Improved visual balance for control systems
- Modern appearance for smart devices
Product Specification
| LCD Size | 4.0 inch |
| LCD Resolution | 480*480pixels |
| LCD Active Area | 71.86 x 70.18 (mm) |
| LCD Luminance | 350nits |
| LCD Viewing Angle | IPS with All viewing angle |
| LCD Interface | 24-bit RGB |
| LCD Controller | ST7701S-G5 |
| LCD Connection Type | FPC: 45PIN with 0.3 pitch,Connector (FH26-45S-0.3SH) |
| LCD Backlight Array | 2 Strings with 5 LED on each string |
| LCD Backlight Controller | None |
| LCD Backlight Driving | IF=40mA，VF=15~0.6V |
| LCD Outline Dimension | 77.66 x 78.97 x 2.3 (mm) |
| CTP structure | None |
| CTP interface | None |
| CTP Controller | None |
| CTP Outline Dimension | None |
| CTP Connection Type | None |
| Product Outline Dimension | 77.66 x 78.97 x 2.3 (mm) |
| Product Operation Temp | -20℃ ~ 70℃ |
| Product Storage Temp | -30℃ ~ 80℃ |
Recommendations for use
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LCD Customization
Our backlight customization options include high and low brightness settings, wide color gamut, automotive structures, ultra-thin designs, and side or back screw hole positioning posts. We can design backlights with over 2500cd/m² brightness for outdoor applications, including heat dissipation designs. We offer LED drivers for PWM brightness adjustment and aluminum brackets for projects with structural requirements. Ultra-thin designs are essential for tablets, balancing thickness and structural stability, and we can customize specifications to meet low power consumption needs.
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Touch Panel Customization
We provide custom cover lens solutions with various shapes, thicknesses (ranging from 0.55mm to 6.0mm), and surface treatments such as AG (Anti-Glare), AF (Anti-Fingerprint), and AR (Anti-Reflection). We can adhere foam to the cover surface and ring-type foam adhesive (like 3M VHB/Tesa) on the back for better installation and dust/water resistance. For UV resistance in outdoor applications, we use special UV-resistant inks or ceramic prints on tempered glass. We can also customize higher-spec cover lenses, like Gorilla and Dragontrail, for IK rating requirements.
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Usage Guidelines
CDTech’s LCD products have high quality reliability, allowing customers to use them for a long time without easily breaking down. However, we also suggest that customers will follow the correct operation or storage methods when using them: try to avoid direct contact with the FPC gold fingers with hands to prevent oxidation. It is recommended to wear anti-static gloves or finger cots for operation, and ensure effective grounding. When the products are not used for a long time, they should not be stored in high-temperature and high-humidity environments for a long time, but should be stored in a warehouse with appropriate temperature and humidity.
Quality Standards
CDTech adheres to a Zero Defect Quality Policy, which includes not only product quality but also the work quality of all departments in the company. This will make our products, quality, service, and technical support exceed your expectations.
All of our products, from evaluation, design, production, inspection to after-sales service, follow the following standards in the process.
| Project Evaluation |
Comprehensively and accurately understand and evaluate customer requirements, including performance, specifications, usage environment, special characteristics, safety characteristics, etc. Identify and evaluate potential risk factors. |
| Product Design |
Strictly follow the requirements of ISO9001 and IATF16949 systems for product design, while also considering material selection, manufacturability and assemblability, past successful product structures and experiences to ensure effective implementation in subsequent production. In the sample stage, verify according to the reliability test requirements in the specification. |
| Production Control |
All important processes of LCM and CTP are produced by CDTech itself, ensuring effective control and assurance of the production process. Strictly follow the production process to ensure that each operation meets established standards, select high-quality raw materials that meet specification requirements, and ensure the stability of product performance. |
| Production Inspection |
All CDTech products have undergone 100% functional testing and visual inspection to ensure that they meet design requirements and customer expectations. |
| After Sales Service |
We have established a rapid response mechanism to promptly handle customer feedback and complaints. Usually, we can reply to customers within 1 day about the possible causes of defects and temporary measures, issue a defect judgment report within 3 days of receiving the defective product, and issue an 8D analysis and improvement report within 7 days. |
| Product Lifetime |
The lifetime of our product is determined by the lifetime of the LED in the backlight, usually 30000 hours or 50000 hours. Please refer to the specifications for details. |
| Warranty period |
The warranty period of CDTech is one year according to LCD industry standards. Within one year, any product with any problems can receive free after-sales service and returns. After one year, CDTech can still provide paid after-sales service. |
| ESD Protection |
All devices are designed and handled in consideration of ESD protection. This includes ESD-SAFE packaging within anti-static bags, wraps, and trays. Customers are reminded to always follow ESD safety to best protect the devices. |
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7F, Bldg 2, Jiancang Technology Park, No.11 Songgang Blvd., Baoan, Shenzhen
