WG 10 - TC 110/WG 10

IEC 62906-6-1:2025 specifies a two-dimensional visualization method of the colour gamuts of a device under test (DUT) and a reference (REF) in the CIE 1976 L*a*b* (CIELAB) colour space and the intersection between them. This document applies to front projection displays which use either lasers or laser hybrid, or both light sources. The hybrid light sources can use both lasers and spontaneous emission-based light sources. Both full-frame projection technologies and raster-scanning projection displays are included.

IEC 62906-5-7:2022 specifies the standard measurement conditions and methods for determining the quality of images projected by a scanning laser display on a visible light fluorescence-free screen, when observed as being affected by speckle noise due to laser coherence.

IEC 62906-5-5:2022 specifies the standard measurement conditions and optical measuring methods for raster-scanning retina direct projection laser displays with light sources such as direct-emitting lasers, optionally equipped with higher-order harmonic generation devices. The hybrid light sources using both lasers and spontaneous-emission-based light sources are not considered.

IEC 62906-5-1:2021(E) specifies the standard measurement conditions and measurement methods for front projection displays without screen which use lasers or laser hybrids as light sources. The hybrid light sources can use both lasers and spontaneous emission-based light sources. This document covers optical performance measurements for full-frame projection technologies such as digital micro mirror devices (DMDs), liquid crystal on silicon (LCOS), and liquid crystal display (LCD) projectors. Other displays, such as raster-scanned (flying spot) projection displays, are not included.

IEC 62906-5-3:2021(E) specifies the standard measurement conditions and measuring methods for determining the parameters of image quality for full-frame laser projection displays integrating the projection devices and screens. The front and rear projection screens are included in this document. Other display devices, such as raster-scanned (flying spot) projection devices, are not included.

IEC 62906-5-6:2020 (E) specifies the standard measurement conditions and measuring methods for determining the optical performance of a projection screen in terms of its photometric characteristics, including screen gain and speckle contrast, from different viewing directions. These methods are only applied for the case in which the projection screen and a laser projector are integrated and used with a fixed configuration as a set to create a real image. Both front and rear projection screens, with a flat surface, are included. This document excludes projection screens which are classified as optically see-through screens, including head-up displays.

IEC 62906-5-4:2018(E) specifies the fundamental colour speckle distribution in CIE colour systems and the measuring methods of the colour speckle of laser display devices (LDDs).
The contents of the corrigendum of juin 2022 have been included in this copy.

IEC 62906-5-2:2016(E) specifies the standard measurement conditions and measurement methods for determining the monochromatic speckle contrast of laser display devices (LDDs). The LDDs may include hybrid types using both a laser or lasers, and spontaneous emission-based light sources, such as LEDs.
NOTE: The monochromatic speckle contrast measurements do not include image quality issues.

IEC 62906-1-2:2015(E) gives the preferred terms, their definitions and symbols for laser display devices and relevant components with the object of using the same terminology when publications are prepared in different countries.