China 3.99 inch lcd 400*960 RGB Manufacturers, Suppliers, Factory

In order to continuously meet more customers' order demands for TFT LCD products, the company's latest purchased LCM automatic production equipment has been shipped to the company on September 25.

Generally speaking, the main reasons may include: reducing the number of pins to accommodate a small package size; reducing the need for host control resources (GPIO, parallel interface); simplifying hardware design (PCB layout, level conversion); the small amount of initial configuration data, which is sufficient and easy to implement with SPI; and the driver IC design supporting serial interface configuration.

To strengthen the cohesion of the management team and enhance inter-departmental collaboration, Shenzhen Hongjia Technology organized an outdoor team-building event at the Luofu Mountain Scenic Area in Huizhou on September 18–19, 2026. Through simple yet practical interactive activities, the event aimed to hone teamwork skills and rally the drive needed for the company's high-quality development.

Traditional small home appliances typically rely on physical buttons, lacking both a modern aesthetic and smart functionality. With the advancement of AI chips, consumer expectations for these products have evolved. Shenzhen Hongjia Technology has introduced a color LCD screen designed to facilitate this smart upgrade: a 3.99-inch (also referred to as 4.01-inch) bar-type display. Featuring a 400×960 resolution and In-Cell touch technology (primarily in portrait orientation), this screen represents a distinctive new form factor for human-machine interfaces in the small appliance sector. It leverages its unique aspect ratio, integrated touch capabilities, and high-fidelity display to replace traditional buttons or segment displays, thereby elevating the interactive experience and the product's overall premium feel.

Shenzhen Hongjia Technology has now successfully mass-produced a 2.86-inch bar-type display that supports QSPI, MCU, and SPI interfaces. This allows for MCU-based operation, helping customers lower overall system costs while enhancing product competitiveness and profitability.

Evaluate HONGJIA’s HJ3450-02 3.5-inch MIPI display: confirm resolution, orientation, 30-pin compatibility, mechanics, documents, and customization before RFQ.