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SEMI International Standards
SEMI New Activity Report Form (SNARF)



Activity Number: 5054
SNARF for: Test Method for Perceptual Motion Blur in LCD


Originating Global Technical Committee: Flat Panel Display (FPD) - Metrology
Originating Technical Committee Region: Korea
Task Force in which work is to be carried out: Perceptual Motion Blur


1. Rationale: Moving edge blur is an important issue on current display technology. Various attempts have been made to characterize and measure the moving edge blur. The Moving Picture Response Time (MPRT) method which measure the time of the blurred edge in gray-to-gray transitions have been widely used for Liquid Crystal Display.
However, some discrepancies have been found between the measured MPRT and moving edge blur quality as perceived by the human visual system. These findings show that the simple MPRT is not sufficient as an objective measure of motion blur.
Therefore, this standard will describe a moving edge blur measurement method which provides an accurate estimate of perceptual moving edge blur
Rate the Estimated Effect on the Industry
1: Major effect on entire industry or on multiple important industry sectors

Rate the Estimated Technical Difficulty of the Activity
II: Some Difficulty - Disagreements on known requirements exist but developing consensus is possible

2. Scope:
a: Define the areas to be covered or addressed by this activity or document:
Standardize a moving edge blur measurement method which provides an accurate estimate of perceptual moving edge blur for LCD.

b: Expected result of activity
New Standard

3. Projected Timetable for Completion:
a: General Milestones
a. Activity Start: 07/29/2010b. 1st Draft by: 07/30/2010
c. Preballot by: d. Technical Ballot by: 07/30/2010
e. Committee Approval By:10/15/2010

b: Activity Specific Milestones
a. Proof of Concept b. Acquisition of Resources:
c. Safety Checklist Completed



Safety Considerations:
The resulting document is expected NOT to be a Safety Guideline


Intellectual Property Considerations:
a. In complying with the standard or safety guideline to be developed, the use of patented technology or a copyrighted item(s) is NOT required
b. The body of the standard and any appendices or related information sections will NOT include copyrighted material

Comments, Special Circumstances: The SNARF is automatically withdrawn since the parent TF, Perceptual Motion Blur, is disbanded by Korea FPD Metrology committee on Oct 12, 2011

Approval: Activity approved by Committee/GCS on July 29, 2010