A 1.6-inch 400x400 circular interface QSPI full/IPS LCD panel refers to a display with the following characteristics:
Size: The screen is 1.6 inches diagonally.
Resolution: Both horizontal and vertical pixels are 400, which means it is a circular screen with square pixels, which can provide clear and delicate picture display.
Shape: A circular interface, which is more common in smart watches and other wearable devices.
Interface: QSPI (Quad Serial Peripheral Interface) is a high-speed serial interface commonly used for communication between microcontrollers and flash memory or other peripheral devices. For LCD panels, using the QSPI interface means fast data transfer, which improves the display refresh rate and response speed.
Viewing direction: When mentioning "full", it may refer to the wide viewing angle characteristics, which means that when viewing the screen from different angles, the color and contrast change less, and the visual experience is better.
Type: IPS (In-Plane Switching) panel, this type of LCD display provides better color reproduction, higher contrast, and wider viewing angle.