scope:

This part of IEC 61747 applies to commercially available liquid crystal displays (LCDs). This standard applies to all LCD types, including transmissive, reflective or transflective liquid crystal display (LCD) modules using either segment, passive or active matrix and achromatic or colour type LCDs that are equipped with their own integrated source of illumination or without their own source of illumination.

The objective of this standard is to establish uniform requirements for accurate and reliable measurements of the following LCD parameters:

a) quasistatic strength,

b) quasistatic fatigue.

The methods described in this standard apply to all sizes, small and large, liquid crystal displays.

NOTE Methods for measuring the fatigue constant are described in this standard and are taken from the referenced literature, see [13] 1 to [20]. The primary results are formulae for estimated allowable stress for the specified lifetime or estimated failure rate for the specified stress level. As an example, limited data for strength and fatigue behaviour of LCD glass are included in an informative Annex A. Similarly, limited data for static strength of LCD modules are also included and compared with that of parent glass.