3.99 Inch Bar Type LCD Module 400×960 IPS
4 Inch (3.99″) IPS Stretched Bar LCD. High-res 400×960 with RGB Interface and ST7701S Driver. Perfect for handhelds.
Product Attributes
| Brand | LCDind |
|---|---|
| Size | 3.9 inch |
| Brightness | Standard (200-450 nits) |
| Interface | SPI |
| Resolution | |
| Operating Temp | Industrial (-20 to +70°C) |
| Outline Dimension | 42.9 × 102.08 × 2.25 mm |
| Driver IC | ST7701S |
| Viewing Angle | 85/85/85/85 (IPS Full View) |
3.99 Inch Bar Type LCD: Wider View, Higher Detail
While many strip screens are narrow, the 3.99 Inch Bar Type LCD Module offers a wider canvas with a resolution of 400×960 pixels. This increased width (400px vs typical 240px) allows designers to implement richer User Interfaces, larger icons, and more readable text without cramping the layout.
Why Choose This 3.99″ (4 Inch) Stretched Screen?
1. Enhanced 400×960 Resolution
The extra pixels make a difference. With 400 pixels of width, this display provides a 5:12 aspect ratio, which feels more balanced than ultra-thin strips. It is perfect for displaying complex data visualization, such as medical waveforms or detailed coffee machine menus, while maintaining a slim profile.
2. Vivid IPS Technology
Reliability meets visual performance. The IPS panel ensures consistent color accuracy and contrast from all directions (85/85/85/85 degrees). This is critical for devices like infusion pumps or wall controllers that are often viewed from the side.
3. Standard RGB + SPI Interface
Powered by the versatile ST7701S driver IC, the module uses a 3-wire SPI for command setup and an 18-bit RGB interface for high-speed video data. This ensures smooth 60fps performance on STM32 or Linux-based platforms.
Detailed Specifications
| Feature | Specification |
| Model Name | 3.99 Inch Bar Type LCD |
| Resolution | 400 (RGB) × 960 |
| Module Dimensions | 42.9 × 102.08 × 2.25 mm |
| Active Area | 39.18 × 94 mm |
| Interface | 3-SPI + 18-Bit RGB |
| Driver IC | ST7701S |
| Brightness | 350 cd/m² (Typ.) |
| Display Mode | IPS / Normally Black |
Technical FAQ
Q: Is this a 4 inch or 3.99 inch screen?
A: The active display diagonal is precisely 3.99 inches. In the industry, it is often categorized as a 4 inch bar type display. The active area is 39.18mm wide by 94mm high.
Q: What is the benefit of 400×960 over 240×960?
A: The 400×960 resolution offers 66% more pixels horizontally. This allows for better anti-aliasing of fonts and the ability to display circular buttons or gauges without them looking oval or compressed.
Q: Does it support Touch?
A: The standard module comes without touch (No Touch), but we can custom bond a Capacitive Touch Panel (CTP) for your project. The wider 40mm surface area is excellent for touch interaction.
Upgrade Your HMI Experience
Get the full datasheet and ST7701S initialization code.
| Brand | LCDind |
|---|---|
| Size | 3.9 inch |
| Brightness | Standard (200-450 nits) |
| Interface | SPI |
| Resolution | |
| Operating Temp | Industrial (-20 to +70°C) |
| Outline Dimension | 42.9 × 102.08 × 2.25 mm |
| Driver IC | ST7701S |
| Viewing Angle | 85/85/85/85 (IPS Full View) |
Q: Is this a 4 inch or 3.99 inch screen?
A: The active display diagonal is precisely 3.99 inches. In the industry, it is often categorized as a 4 inch bar type display. The active area is 39.18mm wide by 94mm high.
Q: What is the benefit of 400x960 over 240x960?
A: The 400x960 resolution offers 66% more pixels horizontally. This allows for better anti-aliasing of fonts and the ability to display circular buttons or gauges without them looking oval or compressed.
Q: Does it support Touch?
A: The standard module comes without touch (No Touch), but we can custom bond a Capacitive Touch Panel (CTP) for your project. The wider 40mm surface area is excellent for touch interaction.
Q: What is the MOQ?
A: The MOQ for our products is 1 piece. We are able to provide support throughout the testing process.
Q: What about the delivery time?
A: We have products in stock and can ship them within 3 working days.
Q: Does your product have any warranty?
A: Yes, we offer a warranty that ensures the LCD will function properly upon receipt. However, please note that we do not provide guarantees for any damage caused during use.
Q: What’s your payment method?
A: We accept several payment methods, including T/T (bank transfer), and PayPal.
Q: What’s your shipping method?
A: Thank you for your inquiry. We offer various shipping methods to suit different needs.
For small quantity orders, we use UPS Air-Express, DHL, FedEx, TNT, or EMS Express service. These options are safe and fast.
For large quantity orders, we typically work with the buyer’s cargo agent in China. Alternatively, we can arrange for air or sea transportation.
Please let us know your preferred shipping method and we will do our best to accommodate your request.
Q: Do you offer custom solution?
A: Yes, we offer custom solutions if our standard products do not meet the buyer’s requirements. Please let us know your specific needs, and we will work with you to create a tailored solution that meets your business needs.
Q: How to Contact us?
A: Send your Inquiry Details in the Below, Click “Send” Now!
