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White-OLED/RGB-OLED Perceptual Matching

August 4, 2020

The goal of this document is to describe the process of perceptually matching White OLED displays to RGB OLED mastering monitors.

  1. The first step is to calibrate your RGB OLED Mastering Display to the Judd-Voss modified white point (x: .3067, y: .318)Select Calibration standard interface input signal levels luminance response target color gamut target white point target
  2. Put your White OLED TV into a picture mode and color temperature where the white point is most accurate. For LG OLED TV’s either the Cinema, ISF Day or ISF Night picture modes and color temp setting should be set to Warm 2
  3. Use Calman to display a 100% white window test pattern (10-25% area) on both the RGB OLED mastering monitor and the WOLED TV.
  4. Use the RGB High (gains) white balance controls to adjust the WOLED TV to perceptually match the previously calibrated RGB OLED mastering monitor (visual match). Due to individual observer variability, it is recommended multiple people verify the visual match before approving the perceptual match.
  5. Use Calman’s custom colorspace editor to create a new custom colorspace.calman custom colorspace editor target options
  6. Click the Advanced optionread colorspace editor mod stimulus level
  7. Click the Copy Colorspace buttoncolorspace editor mod stimulus level details
  8. Rename the colorspacerename colorspace colorspace details
  9. With your meter on the WOLED TV displaying the matched white patch, click the Read button for the white pointcolorspace details read button
  10. Click the Close button at the bottom of the custom colorspace window to save and close it
  11. Your new custom colorspace will be located in the dropdown menu at the bottomcustom colorspace location target options
  12. Now calibrate your WOLED TV as you would normally using your new custom white point that has been perceptually matched to your RGB OLED mastering monitor.