据美国《电气与电子工程师协会会报》1973年7期报导,美国西马闯公司制造的交流场致发光薄膜显示屏的结构如图所示。 场致发光薄膜材料主要是ZnS:Mn蒸发膜,膜的下面有一层黑色的电介质,上面有一层透明的电介质。黑色介电层的反射率仅为0.25％。在实验室正常照明条件下,反差比可达30:1。据称,当显示器表面亮度 According to the American Society of Electrical and Electronics Engineers, 1973, the 7th report reported that the structure of the AC electroluminescent thin-film display screen manufactured by the Syma Chuang company is as shown in the figure. Electroluminescent thin film material is mainly ZnS: Mn evaporation film, the film below a layer of black dielectric, above a layer of transparent dielectric. The black dielectric layer has a reflectance of only 0.25%. In normal laboratory conditions, contrast ratio up to 30: 1. Allegedly, when the display surface brightness