Influence of Al₂O₃ reflective layer under phosphor layer on luminance and luminous efficiency characteristics in alternating-current plasma display panel

This paper examines the optical and discharge characteristics of alternating-current plasma display panel when adopting the Al₂O ₃ reflective layer. The Al₂O₃ reflective layer is deposited under the phosphor layer by using the screen-printing method. The resulting changes in the optical and discharge characteristics, including the power consumption, color temperature, luminance, luminous efficiency, scanning electron microscopy image, and reflectance, are then compared for both cases with and without Al₂O₃ reflective layer. As a result of optimizing the thicknesses between the Al₂O₃ and phosphor layers, the luminance and luminous efficiency are improved by about 17% and 7%, respectively.