Product Description
| Panel Size | 3.99inch |
| Model Number | FB040EGP309-A |
| Panel Type | TFT-LCD |
| Aspect Ratio | 5:12 |
| Resolution | 400X960 |
| Pixel Format | RGB Vertical Stripe |
| Active Area | 39.18(W)X94.032(H) mm |
| Bezel Opening | 41.02（W) X96.33 (H) mm |
| Outline Dimension | 43(H)X102.58(V)X2.42(D)mm |
| Treatment | Antigare |
| View Angel | 80/80/80/80 |
| Support Color | 16.7M |
| Luminance | 350 cd/㎡ |
| Interface Type | MIPI |
| Operation Temperature | -20℃ ~ 70℃ |
| Storage Temperature | -30℃ ~ 80℃ |
| Power Supply Votage | 12V |
| Current for LED Backlight | 40mA |
| Application | Black Box, 3D Printer, Smart Home, Test Euipment, smart meter, etc |
| Sample Leadtime | 7-10days |
Bar-Type TFT LCD For Narrow Equipment Interfaces
3.99 inch bar TFT LCD designs are different from standard small displays because the screen uses a narrow, extended format. With 400 × 960 resolution, MIPI interface support, and 350 nits brightness, this display can show vertical data, status lists, operation steps, and compact graphics in smart meters, 3D printers, test devices, and slim equipment panels.
400x960 Resolution For Long UI Pages
The bar format gives more height than common 4.3-inch landscape panels. It can show parameter lists, progress bars, status cards, menu steps, and alarm prompts without needing a wide front housing.
Key product points include:
- 3.99-inch bar TFT LCD
- 400 × 960 resolution
- MIPI interface support
- 350 nits brightness
- Slim display layout
- Fit for smart meters, 3D printers, and test devices
MIPI Interface For Compact Bar Displays
MIPI interface support helps this narrow display connect with modern embedded boards. Since bar screens often use special orientation and housing layouts, the project should check MIPI initialization, display rotation, connector side, backlight power, and touch alignment before sampling.
Product Structure Review
FaceLCD can help review cover glass, capacitive touch, FPC exit direction, visible window size, and mechanical fit. The 3.99 inch bar TFT LCD can also be evaluated with the product shell to reduce risks such as edge overlap, reversed display direction, or cable interference.
Download Document：
3.99inch 400X960 Bar LCD Display with MIPI
FAQ
What Resolution Does This Bar TFT LCD Use?
It uses 400 × 960 resolution.
What Interface Does It Support?
It supports MIPI interface connection.
Is This A Standard Landscape LCD?
No. It is a bar-type display with a narrow, extended screen shape.
What Brightness Does It Offer?
The reference brightness is 350 nits.
Can FaceLCD Help With Display Orientation?
Yes. FaceLCD can review MIPI initialization, display rotation, touch mapping, and driver setup.
Which Products Can Use This LCD?
It can fit smart meters, 3D printers, test devices, slim control panels, and compact embedded equipment.