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GB/T 20871.63-2021Organic light emitting diode (OLED) displays - Part 6-3: Measuring methods of image quality (English PDF)

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Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

November 26, 2021

Implementation date

June 1, 2022

Scope

GB/T 20871.63-2021 (Organic light emitting diode (OLED) displays - Part 6-3: Measuring methods of image quality) is available as an English-translated PDF.

GB/T 20871.63-2021 — This part of GB/T 20871 specifies standard test strips for image quality of organic light-emitting diode (OLED) displays and display modules Pieces and test methods.

Document preview — GB/T 20871.63-2021

National Standard of the People's Republic of China

Classification
L 53

Issued by: State Administration for Market Regulation, China National Standardization Administration

Contents

  • 1 Scope1
  • 2 Normative references1
  • 3 Terms, definitions and abbreviations1
  • 3.1 Terms and definitions1
  • 3.2 Abbreviations2
  • 4 Standard test equipment and coordinate system2
  • 4.1 LMD2
  • 4.2 The coordinate system of the viewing direction3
  • 4.3 Standard test environmental conditions3
  • 4.4 Power supply3
  • 4.5 Warm-up time4
  • 4.6 Standard darkroom test conditions4
  • 4.7 Standard setting conditions4
  • 5 Test method4
  • 5.1 Spatial image quality test method4
  • 5.2 Time image quality test method21
  • Appendix A (informative appendix) Single matrix method for correcting stray light of imaging instruments27
  • Appendix B (informative appendix) Display device motion image perception resolution test29
  • Reference33

Foreword

GB/T 20871 "Organic Light Emitting Diode Display Device" has or plans to publish the following parts.

---Part 1-1.General Specification;

---Part 1-2.Terminology and text symbols;

---Part 2.Basic ratings and characteristics;

---Part 3.Sub-specifications for display screens;

---Part 4.Display module sub-specification;

---Part 5-1.Environmental test methods;

---Part 5-2.Mechanical test methods;

---Part 5-3.Test methods for residual image and life span;

---Part 6-1.Optical and photoelectric parameter test methods;

---Part 6-2.Visual quality test methods;

---Part 6-3.Image quality test method.

This part is part 6-3 of GB/T 20871.

This section was drafted in accordance with the rules given in GB/T 1.1-2009.

The translation method used in this part is equivalent to IEC 62341-6-3.2017 Organic Light Emitting Diode Display Device Part 6-3.Image Quality

Measurement method."

This section has made the following editorial changes.

---Incorporated the amendments of IEC 62341-6-3.2017/COR1.2019, and the clauses involved in these amendments have been adopted in its

The vertical double line (||) of the outer margin position is marked.

1 Scope

This part of GB/T 20871 specifies standard test strips for image quality of organic light-emitting diode (OLED) displays and display modules

Pieces and test methods.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article

Pieces. For undated reference documents, the latest version (including all amendments) is applicable to this document.

IEC 62341-1-2.2014 Organic Light-Emitting Diode Display Device Part 1-2.Terminology and Text Symbols [Organiclight

emittingdiode(OLED)displays-Part 1-2.Terminologyandlettersymbols]

3 Terms, definitions and abbreviations

3.1 Terms and definitions

The following terms and definitions defined in IEC 62341-1-2.2014 apply to this document.

The addresses of the terminology databases maintained by ISO and IEC for standardization are as follows.

3.1.1

Average picture level average picture level; APL

The average loading percentage of display sub-pixels based on the input signal level.

3.1.2

Static image resolution staticimageresolution

The maximum number of lines that can be fully recognized in the horizontal and vertical directions of the screen during static image input.

Note. The resolution unit is line, but pixels can also be used as resolution units.

3.1.3

Colourfidelity

The ability to reproduce the expected color.

3.1.4

Color desaturation

Due to the image sharpening algorithm, the difference in chromaticity coordinates between the solid color pattern and the grid line pattern.

3.1.5

Perspective gamma distortion directionalgammadistortion

The ratio of the gamma difference between the vertical direction and other viewing directions.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — all pages — is available in the English PDF.

Referenced standards

Normative references

IEC 62341

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