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GB/T 39848-2021 English PDF

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GB/T 39848-2021: Methods of measurement for flat panel display color gamut
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Basic data

Standard ID GB/T 39848-2021 (GB/T39848-2021)
Description (Translated English) Methods of measurement for flat panel display color gamut
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard M74
Word Count Estimation 18,126
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration

GB/T 39848-2021: Methods of measurement for flat panel display color gamut

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Methods of measurement for flat panel display color gamut ICS 33.160.99 M74 National Standards of People's Republic of China Color gamut measurement method for flat panel display Released on 2021-03-09 2021-10-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee

Table of contents

Foreword Ⅲ 1 Scope 1 2 Normative references 1 3 Terms, definitions and abbreviations 1 3.1 Terms and definitions 1 3.2 Abbreviations 2 4 General requirements for measurement 2 4.1 Test signal 2 4.2 Test equipment 2 4.3 Measurement environment 3 4.4 Standard measurement status 3 4.5 Location of test equipment 4 5 Test signal 4 5.1 Two-dimensional color gamut test signal 4 5.2 Three-dimensional color gamut test signal (optional) 5 6 Color gamut measurement 5 6.1 Two-dimensional color gamut measurement 5 6.2 Three-dimensional color gamut measurement (optional) 7 Appendix A (informative appendix) Example of three-dimensional color gamut composite test chart 9 Appendix B (Normative Appendix) Color Space Conversion 11 Appendix C (Normative Appendix) Default RGB color space primary colors and reference whiteness coordinates 12 Reference 13

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying these patents. This standard was proposed by the Ministry of Industry and Information Technology of the People's Republic of China. This standard is under the jurisdiction of the National Audio, Video and Multimedia System and Equipment Standardization Technical Committee (SAC/TC242). Drafting organizations of this standard. Tianjin University, Ministry of Industry and Information Technology, Electronic Industry Standardization Research Institute, Tianjin Normal University, China Electronics Technology The Third Research Institute of the Group Company, Shenzhen Saixi Information Technology Co., Ltd. (National Engineering Laboratory for Standardization of Electronic Information Products), BOE Technology Group Co., Ltd., Qingdao Hisense Electric Co., Ltd., Shenzhen TCL New Technology Co., Ltd., Shenzhen Hisilicon Semiconductor Co., Ltd. Division, Chengdu Houpu Testing Technology Co., Ltd. The main drafters of this standard. Li Guiling, Li Yan, Xu Yan, Sun Qifeng, Wang Li, Wang Jing, Pan Rong, Li Na, Du Yanlin, Zhen Dan, Di Heliang, Wang Wei, Han Qiufeng, Li Xinxin, Zhong Shanfu, Yu Wei. Color gamut measurement method for flat panel display

1 Scope

This standard specifies the general requirements, test signals, measurement methods and measurement data processing methods for the color gamut measurement of flat panel displays. This standard applies to television receivers (hereinafter referred to as receivers) and television monitors (hereinafter referred to as monitors) using flat-panel displays. Color gamut measurement. Refer to the color gamut measurement of receivers and displays using other display screens, as well as electronic projection equipment and computer displays carried out.

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. SJ/T 11324-2006 Terminology of Digital TV Receiving Equipment 3 Terms, definitions and abbreviations 3.1 Terms and definitions SJ/T 11324-2006 and the following terms and definitions apply to this document. 3.1.1 Background The part outside the color sampling area in the measured image. 3.1.2 Color sampling area colorpatch The range of the measurement area in the measured image is filled with the red, green or blue primary color normalized by the reference white amplitude, or other brightness, hue and color The saturation of the color of the chromaticity coordinate value to be measured. 3.1.3 Measurement area testarea The effective measurement range in the color sampling area of the measured image. 3.1.4 Colorspace In the TV system, all colors are represented in a three-dimensional space represented by groups of three mutually independent components corresponding to three coordinate axes. 3.1.5 DefaultRGB colorspace;sRGB Color space standardized by IEC 61966-2-1. Note. GB/T 14857-1993 and GY/T 155-2000 conventional color gamut television systems all use this color space. 3.1.6 Uniform color space uniform color space; UCS Through any point in the color space, changing the same distance in any direction, the color change is approximately the same color space.

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