Display Driver Frame Memory Access for Portrait-Landscape Mode Adaptation

The frame memory is divided into multiple banks (e.g., Bank 0 and Bank 1), each capable of storing partial scan line data. This segmentation allows the system to distribute and manage pixel data across multiple memory regions, enabling support for both portrait and landscape modes without requiring a single large memory block

Multiple frame memory structures are nested within a single display driver integrated circuit. Each memory bank contains its own set of word lines and bit lines, and these nested memory structures work together through coordinated access to provide the required pixel data for different display modes

The memory access system dynamically switches between different access patterns depending on the display mode. In portrait mode, one set of word lines and bit lines is activated, while in landscape mode, different word lines and bit lines are selected. This dynamic reconfiguration allows the same physical memory structure to adapt to different resolution requirements

The system changes operational parameters (such as word line selection, bit line grouping, and data transfer timing) to adapt the frame memory configuration to the required display mode. By modifying these parameters, the same memory hardware can provide different effective resolutions without physical reconfiguration