Gamma Generator Voltage Scaling for Low-Brightness Display Power

The patent applies dynamics by transitioning from constant supply voltage and current to variable supply voltage and current that adapt based on brightness settings. The gamma generator and pixel drive circuitry dynamically adjust their operating parameters according to the display brightness level, allowing the system to consume less power at lower brightness while maintaining reliable operation across all brightness conditions.

The patent implements parameter changes by modifying the supply voltage and bias current parameters based on brightness settings. The gamma generator adjusts its output voltage range and the pixel drive circuitry adjusts its bias current according to the selected brightness level, enabling power consumption to scale with actual display requirements rather than operating at maximum parameters continuously.

The patent employs feedback by using the brightness setting as a control parameter that informs the gamma generator and pixel drive circuitry how to adjust their operating parameters. The system receives brightness level information and uses it to appropriately scale the supply voltage and bias current, ensuring that image quality remains adequate for the selected brightness level while optimizing power consumption.

The patent applies parameter changes by systematically adjusting the supply voltage and bias current parameters in response to brightness settings. The gamma generator modifies its voltage output range and the pixel drive circuitry adjusts its current parameters based on the brightness level, creating a coordinated parameter adaptation that maintains image quality within acceptable ranges while reducing power consumption at lower brightness settings.