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通过两组三基色LED(发光二极管 )样品色度和光强空间分布的测量 ,计算了由这两组LED制作的大屏幕再现的D6 5白平衡点、我国青年女性面部肤色、红旗丝织绸、蓝布和绿滤色片等五种色样在CIELUV均匀颜色空间的色度随观察角 ( 0°～ 70°)的变化及其与正向 ( 0°)再现色之间的色差。结果表明 ,LED单管光强随观察角的变化幅度和三基色管光强空间分布特性的一致性是影响大屏幕空间显色恒定性的主要因素。在确定大屏幕空间显色恒定性允差后 ,可用文中提供的方法对制作大屏幕的LED进行筛选。
Through the measurement of chromaticity and light intensity distribution of two trichromatic LEDs (light-emitting diode) samples, the D6 5 white balance of large-screen reproduction made by these two LED’s was calculated. The facial color of Chinese young women, red silk silk , Blue cloth and green color filter in the CIELUV uniform color space with the observed angle (0 ° ~ 70 °) and the color difference between the positive and the (0 °) reproduced color. The results show that the consistency of the variation of light intensity of single LED with the observation angle and the spatial distribution of the light intensity of the three primary color tube are the main factors that affect the color constant of large screen space. After determining the color display of large-screen space constant tolerance, available in the article provides the method of screening large LED screen.