车载显示系统光效

[中文适用范围]： 本SAE推荐实践为车辆平板显示系统的效率提供了测试协议和性能要求。该标准帮助确定车辆显示系统光效向量KDS = (K50, Kn, Kd, Kha)，基于典型汽车使用环境（如环境光照），具有最高光学性能（如亮度、对比度）和最低功率密度（定义为总功率除以显示器的有效面积）。 [外文原描述]： This SAE Recommended Practice provides test protocols with performance requirements for vehicular flat panel display systems efficiency. The standard help determine vehicle the display system light efficiency vector K DS = (K 50 , K night , K daytime , K high-ambient ) with the highest optical performance (such as luminance, contrast) and lowest power density (defined as total power divided by active area of the display), based on typical automotive usage such as ambient lighting.In this standard, we are measuring L amb to determine E amb value such as 1.592 cd/m 2x measured off a 0.99 standard diffuser equivalent to 5k lux illumination environment, same as in SAE J1757-1.Cross Reference: