Series-Parallel Pixel Circuit for Low-Grayscale Color Accuracy

The light emitting element array is divided into multiple groups that can be independently controlled. By segmenting the array into different controllable units, the system can selectively activate specific groups to achieve precise grayscale control while maintaining overall display quality. This segmentation enables independent control of different element groups, allowing fine-grained adjustment for low-grayscale accuracy.

The patent implements dynamic switching between different connection configurations (series and parallel) of light emitting elements. This dynamic reconfiguration allows the system to adapt the number of active elements and current flow paths based on the required grayscale level, thereby maintaining both high display quality and precise low-grayscale representation through real-time adjustment.

The patent combines both series and parallel connection configurations within the same light emitting element array. This merging of different connection topologies allows the system to leverage the current control advantages of series connections while simultaneously gaining the adjustment flexibility provided by parallel connections. The hybrid configuration enables dynamic reconfiguration between series and parallel modes.

The system dynamically switches between series and parallel connection configurations based on the required grayscale level and display conditions. This dynamic reconfiguration provides adaptability in adjusting the number of emitting elements while maintaining optimized current control through series connections when needed, thereby resolving the contradiction between current control and adjustment flexibility.

Instead of controlling each light emitting element individually, the patent segments the elements into groups that are controlled by fewer switching transistors. This group-based control reduces the total number of transistors required while still maintaining precise grayscale control through the selective activation of different element groups. The segmentation approach balances control precision with device simplicity.

The switching transistors are designed to perform multiple functions: controlling the activation of light emitting element groups, managing current distribution, and enabling dynamic reconfiguration between series and parallel connections. This multi-functionality reduces the overall transistor count while maintaining grayscale control precision, as each transistor serves multiple control purposes rather than dedicated single functions.