SEMI International Standards
Standards New Activity Report Form (SNARF)
Date Prepared: 05/14/2020Revised (if Applicable):

Document Number: 6659
SNARF for: Revision to SEMI D75-0118, Test Method for Color Reproduction and Perceptual Contrast of Displays

Originating Global Technical Committee: Flat Panel Display (FPD) - Metrology
Originating TC Chapter: Korea
Task Force (TF) in which work is to be carried out: Perceptual Image Quality
Note: If a new task force is needed, also submit a task force organization form (TFOF)

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1. Rationale:
a. Describe the need or problem addressed by this activity.
(Indicate the customer, what benefits they will receive, and if possible, quantify the impact on the return on investment [ROI] if the Document is implemented.)
The performance of wide color, very low black and high luminance for HDR (High Dynamic Range) has been mainly developed as high quality properties of 4K and 8K displays. Traditionally, the aim of various methods for measuring color gamut, luminance, and spectrum of colors have been studied is to get the physical color performance of displays. It is very important to announce the display specification and set the way how to develop the next generation displays. So far, some patterns, like 4 % or 10 % box windows are used to measure tristimulus values or spectrum of red, green, blue, black, white and gray gradation and so on for the specification. The measurement data have been matched well with images. For example, the white luminance between pattern and image is the same at the LCD displays with the static BLU. But depending on the global or local dimming algorithm of LCDs and pixel dimming control of OLEDs, the white luminance is changed based on the images. The white luminance should be lower at the high APL (Average Picture Level), like a snow mountain scene than low APL, like a starry night scene. Therefore, the method to measure 2D area should be considered to be suitable to display performance with real contents, instead of the spot area with box patterns. Also, the objective evaluation methods do not fully represent human perceptual characteristics. For example, the 2 times difference of white luminance (1,000 nits and 2,000 nits) is not recognized as it is. For applying human perception, the color appearance model which is announced at CIE in 2016 is proposed as a basic rationale. A new method is to calculate a color volume and contrast with color appearance model which is uniform color space with human visual perception with 2D measurement data.


b. Estimate effect on industry.
2: Major effect on an industry sector - identify the relevant sector
Sector or Company Information: Display manufacture, TV makers

c. Estimate technical difficulty of the activity.
II: Some Difficulty - Disagreements on known requirements exist but developing consensus is possible

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2. Scope:
a: Describe the technical areas to be covered or addressed by this Document development activity. For Subordinate Standards, list common concepts or criteria that the Subordinate Standard inherits from the Primary Standard, as well as differences from the Primary Standard:
This document defines human perceptual properties based on the optical measurement procedure of electronic display devices.

b: Expected result of activity
Major revision to an existing Standard or Safety Guideline

For a new Subordinate Standard, identify the Primary Standard here:


Modification of an existing part of Standard(s) or Safety Guideline(s) including Appendices, Complementary Files, and Supplementary Materials

For Standards, identify the Standard Subtype below:
Test Method

Miscellaneous (describe below):

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3. Projected Timetable for Completion:

a: General Milestones
a. Activity Start: 06/12/2020b. 1st Draft by: 08/03/2020
c. (Optional) Informational Ballot by: d. Letter Ballot by: 08/03/2020
e. TC Chapter Approval By:06/12/2020

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4. Liaisons with other Global Technical Committees/TC Chapters/Subcommittees/TFs:
a. List SEMI global technical committees, TC Chapters, subcommittees, or task forces in your or other Regions/Locales that should be kept informed regarding the progress of this activity. (Refer to SEMI Standards organization charts and global technical committee charters and scopes as needed.)
Global FPD Metrology Technical Committee

b. List any planned Type I Liaisons with external nonprofit organizations (e.g., SDO) that should receive Draft Documents from Standards staff for feedback during this activity and be notified when the Letter Ballot is issued (refer to Procedure Manual § 7):


c. Intercommittee Ballots:
will not be issued

Identify the recipient global technical committee(s):
Flat Panel Display (FPD) - Metrology
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5. Safety Considerations:
The resulting document is expected:
NOT to be a Safety Guideline

NOTE FOR "to be a Safety Guideline": When all safety-related information is removed from the Document, the Document is NOT technically sound and complete - Refer to Section 15.1 of the Regulations for special procedures to be followed.

NOTE FOR "NOT to be a Safety Guideline": When all safety-related information is removed from the Document, the Document is still technically sound and complete.

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6. Intellectual Property Considerations:
Note: Both a: and b: below should be checked for Revision of existing Standard(s) and Safety Guideline(s).

a. For a new Standard or Safety Guideline and for any part to be modified or added in a Revision of published Standards and Safety Guidelines:
the use of patented technology is NOT required.

If "patented technology is intended to be included in the proposed Standard(s) or Safety Guideline(s) " is selected above, then also check one:


b. For Revision, Reapproval, Reinstatement, or Withdrawal of existing Standard(s) and Safety Guideline(s):
there is no known material patented technology necessary to use or implement the Standard(s) and Safety Guideline(s)

c. The body of the Document and any Appendices, Complementary Files, Related Information sections, or Various Materials that may or may not be a part of the Document by reference:
the incorporation of Copyrighted Item will NOT be required



NOTE FOR ‘the use of patented technology or the incorporation of Copyrighted Item(s) is NOT required’: If in the course of developing the Document, it is determined that the use of patented technology or Copyrighted Item(s) is necessary for the Document, the provisions of Regulations § 16 must be followed.

NOTE FOR ’will incorporate Copyrighted Item’: A copyright release letter must be obtained from the copyright owner prior to publication.

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7. Comments, Special Circumstances:
None.

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8. TC Member Review:
took place between (put dates below ) before approval at the TC Chapter Meeting, or

Member Review Start Date; 05/14/2020
Member Review End Date: 05/28/2020

NOTE FOR ‘TC Member Review’ is required by the Regulations for a period of at least two weeks
before approval of a new, or a major revision of an existing, Standard or Safety Guideline. (Refer to Regulations ¶ 8.2.1)
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9. SNARF Approval Dates:
TC Chapter or GCS06/12/2020
Recorded in TC Minutes07/12/2020

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10. SNARF Extension Dates:
TC Chapter Extension Granted on
Extension Expires on