ASTM E1455-17

Standard Practice for Obtaining Colorimetric Data from a Visual Display Unit Using Tristimulus Colorimeters

SIGNIFICANCE AND USE
5.1 This practice may be applied when tristimulus colorimeters are used to measure the colors produced on self-luminous video display devices such as CRTs and flat-panel displays, including electroluminescent (EL) panels, light emitting diodes (LEDs) field emission displays (FEDs), and back-lit liquid crystal displays (LCDs). This practice is not meant to be a complete description of a procedure to measure the color coordinates of a display. Rather, it provides a method for obtaining more accurate results when certain conditions are met. It may be used by any person engaged in the measurement of color on display devices who has access to the requisite equipment.  
5.2 This practice defines a class of tristimulus colorimeters that may be said to be compatible with this practice.
SCOPE
1.1 This practice is intended as an aid for improving the accuracy of colorimetric measurements made with tristimulus colorimeters on visual display units, such as cathode ray tubes (CRTs) and self-luminous flat-panel displays. It explains a useful step in the analysis of colorimetric data that takes advantage of the fact that light from such displays consists of an additive mixture of three primary colored lights. However, it is not a complete specification of how such measurements should be made.  
1.2 This practice is limited to display devices and colorimetric instruments that meet linearity criteria as defined in the practice. It is not concerned with effects that might cause measurement bias such as temporal or geometric differences between the instrument being optimized and the instrument used for reference.  
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Historical
• Publication Date: 30-Jun-2017
• ICS: 17.180.20 - Colours and measurement of light
• ICS: 35.180 - IT Terminal and other peripheral equipment
• Technical Committee: E12 - Color and Appearance
• Drafting Committee: E12.06 - Display, Imaging and Imaging Colorimetry

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: E1455 − 17
Standard Practice for
Obtaining Colorimetric Data from a Visual Display Unit
1
Using Tristimulus Colorimeters
This standard is issued under the fixed designation E1455; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
INTRODUCTION
This practice provides directions for correcting the results obtained with tristimulus colorimeters
when measuring the tristimulus values or chromaticity coordinates of colored displays. Tristimulus
colorimeters approximate the CIE color matching functions x¯(λ), y¯(λ), z¯(λ) to make these measure-
ments. The errors generated in measuring colors on a display may be minimized using this practice.
1. Scope 2. Referenced Documents
2
2.1 ASTM Standards:
1.1 This practice is intended as an aid for improving the
E284 Terminology of Appearance
accuracy of colorimetric measurements made with tristimulus
E1336 Test Method for Obtaining Colorimetric Data From a
colorimeters on visual display units, such as cathode ray tubes
Visual Display Unit by Spectroradiometry
(CRTs) and self-luminous flat-panel displays. It explains a
E1341 Practice for Obtaining Spectroradiometric Data from
useful step in the analysis of colorimetric data that takes
Radiant Sources for Colorimetry
advantage of the fact that light from such displays consists of
2.2 ISO/CIE Standard:
an additive mixture of three primary colored lights. However,
ISO 11664–1:2007(E)/CIE S 014–1/E:2006 Joint Standard
it is not a complete specification of how such measurements
ISO/CIE Standard: Colorimetry Part 1 – CIE Standard
should be made.
3
Colorimetric Observers
1.2 This practice is limited to display devices and colori-
3. Terminology
metric instruments that meet linearity criteria as defined in the
practice. It is not concerned with effects that might cause
3.1 Definitions—Unless otherwise stated, definitions of ap-
measurement bias such as temporal or geometric differences
pearance terms in Terminology E284 are applicable to this
between the instrument being optimized and the instrument
practice.
used for reference.
3.2 Definitions of Terms Specific to This Standard:
1.3 This standard does not purport to address all of the 3.2.1 calibration, n—in reference to a tristimulus
safety concerns, if any, associated with its use. It is the
colorimeter, the process performed outside of this practice to
responsibility of the user of this standard to establish appro- adjust the tristimulus colorimeter to provide the best possible
priate safety, health and environmental practices and deter-
results for average or predefined conditions.
mine the applicability of regulatory limitations prior to use.
3.2.2 optimization, n—in reference to a tristimulus
1.4 This international standard was developed in accor-
colorimeter, the process performed pursuant to this practice to
dance with internationally recognized principles on standard-
adjust the tristimulus colorimeter or to interpret its readings to
ization established in the Decision on Principles for the
provide better results when applied to a particular display
Development of International Standards, Guides and Recom-
device.
mendations issued by the World Trade Organization Technical
3.2.3 compatible, adj—in reference to a tristimulus
Barriers to Trade (TBT) Committee.
colorimeter, one so designed as to automate the procedure
described in this practice.
1 2
This practice is under the jurisdiction of ASTM Committee E12 on Color and For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Appearance and is the direct responsibility of Subcommittee E12.06 on Display, contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Imaging and Imaging Colorimetry. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved July 1, 2017. Published September 2017. Originally the ASTM website.
3
approved in 1992. Last previous edition approved in 2016 as E1455 – 16. DOI: Currently available from CIE (Commission International on Illumination),
10.1520/E1455-17. http://www.techstreet.com.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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E1455 − 17
4. Summary of Practice 6.1.2 No matter how many filters are used, or in what
manner, the goal of the measurement process is to determine
4.1 Tristimulus colorimeters comprised of three or four
tristimulus values X, Y, Z. For light with a color stimulus
detector channels are, in general, not amenable to accurate
function Φ(λ),
calibration that hol
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: E1455 − 16 E1455 − 17
Standard Practice for
Obtaining Colorimetric Data from a Visual Display Unit
1
Using Tristimulus Colorimeters
This standard is issued under the fixed designation E1455; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
INTRODUCTION
This practice provides directions for correcting the results obtained with tristimulus colorimeters
when measuring the tristimulus values or chromaticity coordinates of colored displays. Tristimulus
colorimeters approximate the CIE color matching functions x¯(λ),y¯(λ),z¯(λ) to make these measure-
ments. The errors generated in measuring colors on a display may be minimized using this practice.
1. Scope
1.1 This practice is intended as an aid for improving the accuracy of colorimetric measurements made with tristimulus
colorimeters on visual display units, such as cathode ray tubes (CRTs) and self-luminous flat-panel displays. It explains a useful
step in the analysis of colorimetric data that takes advantage of the fact that light from such displays consists of an additive mixture
of three primary colored lights. However, it is not a complete specification of how such measurements should be made.
1.2 This practice is limited to display devices and colorimetric instruments that meet linearity criteria as defined in the practice.
It is not concerned with effects that might cause measurement bias such as temporal or geometric differences between the
instrument being optimized and the instrument used for reference.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety safety, health and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
E284 Terminology of Appearance
E1336 Test Method for Obtaining Colorimetric Data From a Visual Display Unit by Spectroradiometry
E1341 Practice for Obtaining Spectroradiometric Data from Radiant Sources for Colorimetry
2.2 ISO/CIE Standard:
ISO 11664–1:2007(E)/CIE S 014–1/E:2006 Joint Standard ISO/CIE Standard: Colorimetry Part 1 – CIE Standard Colorimetric
3
Observers
3. Terminology
3.1 Definitions—Unless otherwise stated, definitions of appearance terms in Terminology E284 are applicable to this practice.
3.2 Definitions of Terms Specific to This Standard:
1
This practice is under the jurisdiction of ASTM Committee E12 on Color and Appearance and is the direct responsibility of Subcommittee E12.06 on Display, Imaging
and Imaging Colorimetry.
Current edition approved July 1, 2016July 1, 2017. Published August 2016September 2017. Originally approved in 1992. Last previous edition approved in 20102016 as
E1455 – 03 (2010).E1455 – 16. DOI: 10.1520/E1455-16.10.1520/E1455-17.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Currently available from CIE (Commission International on Illumination), http://www.techstreet.com.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E1455 − 17
3.2.1 calibration, n—in reference to a tristimulus colorimeter, the process performed outside of this practice to adjust the
tristimulus colorimeter to provide the best possible results for average or predefined conditions.
3.2.2 optimization, n—in reference to a tristimulus colorimeter, the process performed pursuant to this practice to adjust the
tristimulus colorimeter or to interpret its readings to provide better results when applied to a particular display device.
3.2.3 compatible, adj—in reference to a tristimulus colorimeter, one so designed as to automate the procedure described in this
practice
...