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GB 21520-2023 English PDF (GB21520-2023)

GB 21520-2023 English PDF (GB21520-2023)

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

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