What is BS IEC 62679-3-1 - Electronic paper displays (EPD) about?
BS IEC 62679-3-1 is the third part of an international standard used for electronic paper display.
BS IEC 62679-3-1 specifies the standard measurement conditions and measurement methods for determining the optical performance of Electronic Paper Display (EPDs). The scope of this document is restricted to EPDs using either segment, passive, or active matrix with either monochromatic or colour type displays. The measuring methods are intended for EPDs operated in a reflective mode. The EPDs may include an integrated lighting unit (ILU), but the ILU will be turned off for these measuring methods. Colour systems beyond three primaries are not covered in this document.
Who is BS IEC 62679-3-1 - Electronic paper displays (EPD) for?
BS IEC 62679-3-1 on Electronic paper display is useful for:
- Manufacturer of electronic visual displays
- Manufacturer of televisions
- Manufacturer of mobile phones
- Electronic engineers
Why should you use BS IEC 62679-3-1 - Electronic paper displays (EPD)?
An electronic paper display (EPD) is an electrically charged surface. These displays replicate the look and experience of ink on paper. 
BS IEC 62679-3-1 specifies the measuring conditions and optical measuring methods of electronic paper display(EPD). This test method is useful in determining the performances of these displays they are as follows:
- Reflection measurement test helps in determining the reflectance factor of EPD by using illumination condition
- Standard directional or hemispherical diffuse illumination conditions is useful in measuring the photometric in-plane uniformity of an EPD
- Directional or hemispherical diffuse illumination conditions helps in calculating the contrast ratio
- Prior reflection measurements test are useful in determining the ambient contrast ratio f an EPD under indoor or daylight illumination conditions
- Determines the photometric cross-talk of an EPD using the standard directional or hemispherical diffuse illumination conditions
- Using directional or hemispherical diffuse illumination conditions you can determine the chromaticity and colour gamut of an EPD
- Measures the daylight colour gamut volume of an EPD under standard daylight illumination conditions
- Viewing direction dependence test helps in calculating the photometric and colorimetric properties of the EPD over a range of viewing directions in the vertical and horizontal planes.
- Ghosting test method is useful in determining the amount of photometric ghosting in an EPD
By applying BS IEC 62679-3-1 you can evaluate optical performance of Electronic Paper Display (EPDs) that results in producing better quality Electronic paper display.
