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GAMMA Curve Calibration

Overview

GAMMA correction adjusts the grayscale response curve of an LCD panel to achieve the desired non-linear relationship between input signal and output luminance. Proper GAMMA calibration significantly improves contrast, color accuracy, and shadow detail.

In panel repair scenarios, after replacing a logic board or modifying PMIC voltages, the GAMMA parameters may need recalibration for optimal display quality.

Current Status

🚧 This feature is currently under development and has not been officially released.

GAMMA curve calibration is an important planned feature for VolToolV2. Development is in progress with the following planned capabilities:

Planned Features

  • GAMMA Curve Read: Read GAMMA register values from the TCON via I2C
  • Curve Visualization: Display the current GAMMA curve on the OLED screen
  • Per-Point Adjustment: Independently adjust each grayscale node
  • Preset Curves: Built-in library of common GAMMA curve presets
  • Custom Curve Save: Save calibrated curve parameters to external Flash
  • Program Write: Write modified GAMMA parameters to the target chip

Coming Soon

We are actively developing and testing this feature to ensure reliable operation across various logic board platforms. If you have special requirements or suggestions, please feel free to provide feedback.