Liquid crystal display devices - Environmental, endurance and mechanical test methods. Visual inspection of active matrix colour liquid crystal display modules has-corrigendum BS EN IEC 61158-4-21:2019 supersedes

BS EN IEC 61158-4-21:2019 supersedes EN 61158-4-21:2012

trade-off energy demand and energy efficiency of heating systems)

6 Free angular movement or misalignment

The main objective of BS EN 1297 is to ensure bitumen sheets that play a positive role in maintaining the structural integrity and protection of structures

Manufacturers and suppliers of electrical cables for aircraft industry

Liquid crystal display devices - Environmental, endurance and mechanical test methods. Visual inspection of active matrix colour liquid crystal display modules has-corrigendum BS EN IEC 61158-4-21:2019 supersedes1 Scope This part of IEC 61747 gives the details of the quality assessment procedures and provides general rules for visual inspection of the active area of transmissive type active matrix colour liquid crystal display modules by the human eye. Furthermore, this standard includes defect definitions and the method for visual defect inspection. NOTE 1 Mura is excluded from this standard because it was not clearly specified at the time this standard was