Micro LED Display PWM Control for Luminosity and Power

The patent applies PWM (Pulse Width Modulation) to dynamically control the current supplied to micro LEDs. By varying the duty cycle of the current pulse while maintaining optimal current density during the active period, the system achieves high luminosity efficiency while allowing gradation control, thereby reducing overall power consumption.

The patent changes the timing parameters of current supply to micro LEDs by introducing a timing controller that regulates the start and end times of current flow. This temporal parameter control enables the system to maintain high current density for short durations to achieve high luminosity while minimizing total energy consumption through precise timing control.

The patent segments the display into multiple blocks, with each block containing multiple micro LEDs that share common control signals. This segmentation allows independent optimization of current timing for each block while sharing control infrastructure, thereby improving luminance efficiency without proportionally increasing overall circuit complexity.

The patent implements a universal timing controller that manages current supply timing for all micro LEDs across multiple blocks. This single controller performs multiple functions including generating PWM signals, controlling current timing, and coordinating block operations, thereby achieving individual current optimization without requiring separate control circuits for each LED.