Hunan Baiyou Technology Co., Ltd.
| Resolution | 480 x 128 pixels |
| Typical Luminance | 1100 cd/m2 without touch, +/-150 cd/m2 |
| Display Size | 4.0 inches |
| Driver IC | NV3041A |
| Interface | SPI |
| Operating Temperature | -30 to +85 degrees C |
| Model Number | BY-H040A31WQINVKN22 |
| Brand Name | Baiyou Display |
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Product Specification
| Resolution | 480 x 128 pixels | Typical Luminance | 1100 cd/m2 without touch, +/-150 cd/m2 |
| Display Size | 4.0 inches | Driver IC | NV3041A |
| Interface | SPI | Operating Temperature | -30 to +85 degrees C |
| Model Number | BY-H040A31WQINVKN22 | Brand Name | Baiyou Display |
Baiyou Display BY-H040A31WQINVKN22 is a 4.0-inch IPS bar TFT LCD with 480 x 128 pixels, an NV3041A driver IC and an SPI interface. The wide format provides space for status information, settings and graphical controls in a narrow panel opening.
This listing specifies SPI and an operating temperature of -30 to +85 degrees C. Typical luminance without touch is 1100 cd/m², with a stated tolerance of +/-150 cd/m² under the datasheet backlight conditions.
| Parameter | Specification |
|---|---|
| Model | BY-H040A31WQINVKN22 |
| Display type | IPS TFT LCD, normally black |
| Diagonal size | 4.0 inches |
| Resolution | 480 (H) x 128 (V) pixels |
| Interface for this listing | SPI |
| Driver IC | NV3041A |
| Module outline | 105.50 x 38.90 x 2.85 mm |
| Active area | 95.04 x 25.34 mm |
| Viewing angles | 85 degrees up/down/left/right, typical |
| Backlight | White LED |
| Luminance without touch | 1100 cd/m² typical, +/-150 cd/m² |
| Digital supply VCI | 3.3 V typical, +/-0.3 V |
| Backlight operating conditions | 21.0 V typical (+/-1.5 V), 20 mA constant current |
| FPC | 22 pins, 0.5 mm pitch |
| Touch panel | No touch panel in the referenced configuration |
| Operating temperature | -30 to +85 degrees C |
| Storage temperature | -40 to +90 degrees C |
Front view of the IPS bar display. Original product and FPC markings are retained.
Rear view for checking the module form and FPC orientation. Confirm the connector and mating direction for your assembly.
Module outline: 105.50 x 38.90 x 2.85 mm. Active area: 95.04 x 25.34 mm. Dimensions are in millimetres; refer to the drawing for individual tolerances. The source datasheet is Rev 0-0 dated 2026-07-29 and marked preliminary. Request the appropriate drawing revision for design approval.
The original material retains the BY-H043A28 marking on the FPC. The product model for this listing is BY-H040A31WQINVKN22. The FPC marking does not replace the product model.
Candidate applications include compact central-control panels, industrial equipment status interfaces and outdoor equipment displays. The bar format can present operating values, menus and settings in a narrow opening. These are application suggestions; the application artwork is an illustrative integration reference.
Evaluate the complete optical assembly with its actual cover window, ambient light and viewing position. Match mechanical clearance, temperature needs and backlight power to the intended equipment.
This product listing specifies SPI. The series datasheet also contains QSPI and an MCU 8-bit default reference configuration. Any MCU reference pin assignment in that material is not the SPI pin assignment for this listing. Request the SPI-specific connection details, timing and initialization information before connecting the host controller.
Check the FPC orientation, connector and host logic levels. The 3.3 V VCI supply and the LED backlight supply are separate specifications; the backlight reference condition is 21.0 V typical at 20 mA constant current.
Need the full datasheet, mechanical drawing or SPI connection details? Contact Baiyou and quote BY-H040A31WQINVKN22. Tell us your application and controller/interface requirements so we can confirm the appropriate document revision and configuration.
For a quotation, include your required quantity, annual demand, mechanical constraints, viewing environment and operating conditions.
Company Details
Business Type:
Manufacturer
Year Established:
2009
Total Annual:
100000000-500000000
Employee Number:
300~350
Ecer Certification：
Verified Supplier
Hunan Baiyou Technology Co., Ltd. 1. Who We Are Hunan Baiyou Technology Co., Ltd. is a leading specialized manufacturer and supplier of small-to-medium-sized Liquid Crystal Displays (LCDs) based in Hunan, China. With a focus on technical precision and industrial reliability, we provide high-perfor... Hunan Baiyou Technology Co., Ltd. 1. Who We Are Hunan Baiyou Technology Co., Ltd. is a leading specialized manufacturer and supplier of small-to-medium-sized Liquid Crystal Displays (LCDs) based in Hunan, China. With a focus on technical precision and industrial reliability, we provide high-perfor...
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