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SEMI D57

2010 Edition, March 2010

Complete Document

DEFINITION OF MEASUREMENT INDEX (VCT) FOR MURA IN FPD IMAGE QUALITY INSPECTION



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Description / Abstract:

This document will focus on the definition of Measurement Index (VCT) for Mura in FPD Image Quality Inspection.

NOTICE: This standard does not purport to address safety issues, if any, associated with its use. It is the responsibility of the users of this standard to establish appropriate safety and health practices and determine the applicability of regulatory or other limitations prior to use.

Purpose

Specific definitions and quantifications of Mura are not consistent for many FPD manufacturers. Though there are standards for quantification of Mura, they are only used for limited types of Mura and are not practical in real varied cases. Currently it is still difficult to implement instruments to replace human inspectors for Mura inspections of LCDs. Therefore, it is necessary to standardize the classification of Mura for LCD.