IEC 62977-2-11:2023规定了发射显示器的局部亮度和均匀性测量方法。光测量设备（LMD）的测量范围将覆盖500多个像素的电视、显示器或标牌显示器。局部亮度和均匀性测量方法识别局部块内的光学变化，其中超过500个发射像素被规则地放置。

IEC 62977-2-11:2023 specifies the local luminance and uniformity measurement methods of emissive displays. The light measuring device’s (LMD) measurement field will cover more than 500 pixels of TVs, monitors or signage displays. The local luminance and uniformity measurement methods identify optical variations within the local block where over 500 emission pixels are regularly placed.