Laser front projection display technology has been widely used in the display field due to its advantages of high brightness, high color saturation, and long lifespan. However, accurate testing of their optical performance is crucial to ensure that these devices can provide high-quality images in practical applications. The IEC 62906-5-1 standard was born for this purpose, which specifies in detail how to measure key optical parameters of laser front projection display devices, including but not limited to brightness, contrast, resolution, color accuracy, color gamut, and projection distance and angle.