Wednesday, May 2025

09:00 AM - 09:20 AM

Room: LL20A

Session: Innovative Display Quality Improvements

Evaluation and Improvement of the First Frame Ratio under Extremely Low Luminance in AMOLED Displays

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  Staff engineer

  Sangmoo Choi , PhD

  Google LLC

Description:

Evaluation and improvement of the first frame ratio (FFR) of active-matrix organic light emitting diode (AMOLED) displays became very important particularly for mobile devices with extremely low display brightness. We have developed reliable FFR evaluation methodologies for extremely low luminance, and quantified the luminance and color FFR performances. In addition, we proposed the practical solutions to mitigate the low FFR issues which showed the 3 times higher luminance FFR, and 37% improved color accuracy for the steady state luminance 0.127 cd/m2 image.