Electronic paper displays use reflective technology to create images and need no power to hold images because of their bistable nature. There are more and more applications of color electronic paper displays on the market nowadays, and for convenient reading, some of electronic paper displays are equipped with front light. It is necessary to standardize the test methods for measuring color and optical properties of electronic paper displays under front light on or off.

Standardize the measurement methods, including light sources, illumination conditions and measuring geometries, and define the parameters for color properties of electronic paper display.