Light Emitting Display Device Dynamic Brightness Control

The patent implements dynamic brightness adjustment by introducing a controller that modifies the emission control signal width based on detected peripheral brightness levels. The emission control signal transitions from a fixed duration to a variable duration signal that adapts to environmental conditions, allowing pixels to emit light at appropriate brightness levels for different viewing conditions while maintaining a relatively simple display structure.

The patent employs a feedback mechanism where a sensor detects peripheral brightness levels and feeds this information to a controller. The controller then adjusts the emission control signal accordingly, creating a closed-loop system that automatically optimizes image clarity based on environmental lighting conditions without requiring complex manual intervention.

The patent implements dynamic power management by adjusting the emission control signal width based on the total number of pixels required to emit light. When fewer pixels need to emit or when peripheral brightness is high, the controller reduces the emission duration, thereby lowering power consumption while maintaining sufficient display brightness. This dynamic adjustment allows the system to optimize the balance between brightness and power usage in real-time.

The patent changes the temporal parameter of the emission control signal (signal width/duration) to control both brightness and power consumption. By varying the duration for which pixels are activated rather than changing the fundamental brightness capability, the system achieves efficient power management while maintaining the ability to provide sufficient brightness when needed.