A statistical model of tristimulus measurements within and between OLED displays

TL;DR

This paper introduces an empirical statistical model for noise in tristimulus measurements of OLED displays, revealing anisotropic noise characteristics and demonstrating similar distribution patterns across multiple panels and temporal measurements.

Contribution

The paper presents a simple, XYZ-dependent empirical noise model for OLED display color measurements, highlighting anisotropic noise distribution and consistency across panels.

Findings

Noise is anisotropic in XYZ space, mainly along a specific axis.

Variations between panels are similar to temporal noise but larger.

The model accurately captures measurement noise characteristics.

Abstract

We present an empirical model for noises in color measurements from OLED displays. According to measured data the noise is not isotropic in the XYZ space, instead most of the noise is along an axis that is parallel to a vector from origin to measured XYZ vector. The presented empirical model is simple and depends only on the measured XYZ values. Our tests show that the variations between multiple panels of the same type have similar distribution as the temporal noise in measurements from a single panel, but a larger magnitude.