China 3.99 inch Long Strip tft display RGB Manufacturers, Suppliers, Factory

Completely eliminating LCD light leakage is difficult (especially against a pure black background, where slight light leakage may occur at the edges). However, through optimized design (such as high-precision shading structures and zoned light control), the use of high-quality materials (such as low-defect light guide plates and high-light-shielding adhesive strips), and rigorous production processes (such as full lamination and precision assembly), light leakage can be significantly reduced. Shenzhen Hongjia Technology has 12 years of industry experience, specializing in the research and development, production and sales of 1.14-inch to 12.1-inch LCD screens and matching touch screens. It has rich experience in dealing with backlight leakage and can meet the demanding requirements of our customers. We can also accept customization. Customers are welcome to email us for consultation.

In short, for small-sized LCD screens, QSPI is a better choice: through pin multiplexing and queue mechanism, while maintaining sufficient transmission rate, PCB design and master control resource usage are greatly simplified, which is especially suitable for scenarios that require dynamic display and limited space. SPI is only applicable to extreme cases where the driver IC does not support QSPI or has extremely simple functions. When actually selecting, it is necessary to first confirm the interface specifications of the screen driver IC (some screens support both SPI and QSPI, which can be switched by configuring pins).

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.

A 4.0 inch Round LCD module is an electronic display component that provides a clear and high-resolution visual output. Here are a few reasons why you might need this module:

mainly reflected in high-speed transmission, simplified wiring, low power consumption, high compatibility and other aspects. The following is a detailed analysis of its "advantages" from the perspective of technical principles and practical applications

This 5-inch round LCD screen features IPS full-viewing angle, a 1080*1080 resolution, a MIPI interface, a 1300 contrast ratio, 16.7M colors, and a 50-pin pin configuration. It operates in temperatures from -20°C to 60°C and has a storage temperature range of -30°C to 70°C. It features a multi-point capacitive touchscreen using the GT911 touchscreen IC with a GFF structure and an I2C interface.