GB 21520-2023: Minimum allowable values of energy efficiency and energy efficiency grades for displays

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Scope

This document specifies the minimum allowable values of energy efficiency and energy
efficiency grades for displays, and energy efficiency calculation and test methods.
This document is applicable to flat and curved general-purpose and commercial
displays with a screen diagonal size of not less than 40 cm, powered by AC or DC, and
using liquid crystal (LCD) and organic light-emitting diode (OLED) as display methods.
This document is applicable to LED panel-controller integrated display terminals
powered by AC or DC, with light-emitting diodes (LED) as the display mode, pixel
pitch greater than 0.30 mm and not greater than 2.60 mm, and maximum luminance not
greater than 3000 cd/m2.
This document does not apply to:
a) Professional-purpose monitors for image evaluation during the shooting,
production, and broadcasting of TV programs;
b) Dual screen displays;
c) Displays used for industrial equipment, medical equipment, movie projection,
virtual reality (VR), augmented reality (AR), merged reality (MR), extended
reality (XR), LCD console (KVM/KMM), and other professional uses, and
display products used only as accessories;
d) Displays that are only powered by battery.

Basic Data

Standard ID	GB 21520-2023 (GB21520-2023)
Description (Translated English)	Minimum allowable values of energy efficiency and energy efficiency grades for displays
Sector / Industry	National Standard
Classification of Chinese Standard	F01
Classification of International Standard	27.010
Word Count Estimation	18,191
Date of Issue	2023-05-23
Date of Implementation	2024-06-01
Older Standard (superseded by this standard)	GB 21520-2015
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration