SEMI D31 - Guide for Definition of Measurement Index (DSEMU) for Luminance Mura in FPD Image Quality Inspection -

Abstract

1 Purpose
1.1 This Standard defines the index of measurement for mura in Flat Panel Display (FPD) image quality inspection.
1.2 This Standard defines distance factor.
1.3 Based on the result of investigation for human eye’s sensitivity to mura in ergonomics approach, this Standard
proposes an index for level of mura by expressing the function of the major axis and contrast of mura.

2 Scope
2.1 This Standard is applicable to FPD excluding head mount display (HMD). Applicable display sizes are from Type
10 (10-inch diagonal) to Type 100 (100-inch diagonal). Viewing distance ranges from 0.5 m to 5 m.

Referenced SEMI Standards
SEMI D57 — Guide for Definition of Measurement Index (VCT) for Mura in FPD Image Quality Inspection

Revision

SEMI D31-00-0825  Current  Available 08-29-2025
SEMI D31-00-0318  Superseded
SEMI D31-00-0914  Superseded
SEMI D31-00-0213  Superseded
SEMI D31-00-1102  Superseded

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