隨著商業活動發展和光源製作技術提升，發光二極體（Light-Emitting Diodes, LED）已經廣泛使用於人類的日常生活中，不僅使用於一般照明，也應用於商業廣告招牌及號誌照明系統。新型態LED光源之特徵，包含LED光源亮度過高、反應時間快速、顏色飽和度高，製作而成之LED動態廣告招牌燈具類型及動態圖案，亦有顯著不同。在台灣，LED動態廣告招牌濫用是一個嚴峻的問題，可能會對環境造成更嚴重光污染情形。不幸的是，目前LED動態廣告招牌之規範仍然沒有明確的定義。
本研究以實驗室實驗法模擬目前戶外常見的LED動態廣告招牌，募集20位受測者進行眩光與閃爍主觀評價，並對各類LED動態廣告招牌類型進行光度量測，再透過變異數分析方法，分析動態廣告招牌與人眼視覺不舒適度之間的關係，最後將本研究設置之LED動態廣告招牌分為兩種類型，包含LED組合燈類光源（LED孔雀燈、LED八卦燈、LED字型燈）、以及LED多媒體類光源（LED訊息跑馬燈、LED廣告看板）。同時，我們進一步建立眩光和閃爍評價模型，據此提出對於動態廣告招牌亮度與頻率參數建議表，期望作為未來光污染研究或規範制定之參考。

As the developing of technology and commercial activities changed, light-emitting diodes (LEDs) has been widely implementing around our daily life, not only used in lighting system but also used in commercial billboards and warning signs. The advantage of these dynamic LED signs including high power, instantaneous switch-on, high color saturation, flicker, and great diversity of patterns types. However, the abuse of dynamic LED signs is a rigorous problem in Taiwan, they might cause more serious light pollution on the environment situation. Unfortunately, nowadays the standards of the dynamic LED signs are still not well-defined.
In this study, the psycho-physical experiment is used to simulate the current common LED dynamic signs in the outdoor environment. There are 20 subjects who conduct the glare and flicker subjective evaluation of dynamic LED signs and measure the photometric properties of dynamic LED signs. Under the same conditions as above evaluation experiments, through the analysis of variance (ANOVA), the dynamic LED signs van be divided into two types, first one is the LED combo type, such as LED peacock, LED octant and LED character signs, and the other is LED multimedia type, such as LED billboards and LED message-boards. Accordingly, for the LED dynamic signs, we establish the glare and flicker evaluation model and propose the suggestion table with use of the parameters of brightness and frequency factor. We hope that these findings can be used as the future reference of the light pollution research or the specification.

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