现代显示, 2012, 23 (9): 129, 网络出版: 2013-01-14  

改善全彩LED显示屏对比度的选择性滤光片设计方法

A Design Method of Selective Filter for Enhancing Full-color LED Display Contrast
作者单位
上海三思科技发展有限公司,上海 201100
摘要
环境杂散光会显著降低LED显示屏的对比度,本文提出在全彩屏前增加一个干涉滤光片的方法,选择性地透过RGB三色光,杂散光却被反射,从而提高显示屏的对比度。文章提出了RGB发射峰的数学模型和滤光片设计的评价函数,给出了详尽的设计方法、步骤和一个例子的设计结果。
Abstract
Environmental stray light will significantly reduce the LED display contrast. This paper presents a method by adding an interference filter in front of the screen. The RGB tri-color light pass through the filter, but the stray light has been reflected, the contrast of the display enhanced thereby. A mathematical model of the RGB emission spectra and an evaluation function of the filter design were given. The design method and process were given in detail. An example of the design results was provided.

周士康, 韩红梅, 于长波. 改善全彩LED显示屏对比度的选择性滤光片设计方法[J]. 现代显示, 2012, 23(9): 129. ZHOU Shi-kang, HAN Hong-mei, YU Chang-bo. A Design Method of Selective Filter for Enhancing Full-color LED Display Contrast[J]. ADVANCED DISPLAY, 2012, 23(9): 129.

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