光是人類生活不可或缺的元素，除了生理上的感受之外也影響著人們心理層面。因此，從硬體方面的材質選用及造型設計，到發光元件的開發，燈光相關產品不斷推陳出新。近年來更有結合控制技術之相關產品，透過調整光線本質特性，如顏色、色溫、閃爍頻率，增加互動性以迎合不同場合、節日氛圍。 隨著科技的發展，燈光系統應用在人機互動及人人互動間的可能性儼然被揭開，相關研究與產品陸續被提出，從單純的燈光點亮物件，如：燈光藝術節、建築光雕，到為生活增添樂趣，例如透過手機應用程式控制燈泡之光線顏色亮度等性質。
相關研究顯示具有互動燈光功能的裝置能提高使用者的使用動機。目前雖有透過設計和人機互動角度，設計公共空間中的互動燈光系統，然實體操作功能仍未被系統性地納入互動燈光系統設計考量。因此，本研究提出光細胞 LightingCell，光細胞是一項應用於公共空間之有機發光二極體互動燈光系統，本研究觀察歸納現有公共空間(以公園為例)之使用者行為後，以人機互動的思維切入設計，不僅藉由燈光控制，也透過實體介面設計達到人機互動以及促成使用者間互動之目的。

Light is an indispensable element in human life. It affects not only physical feelings but also psychological aspect of people. Hence, lighting-related products continuously evolve, from material selection and design of hardware, to the development of light-emitting components. In recent years, lighting-related products which integrated control technology have been developed as consumer electronics. Interactivity is added to cater to different occasions, holiday atmosphere through adjusting the properties of light, such as color, color temperature, and flicker frequency. Furthermore, the possibility of the use of lighting systems in human-machine interaction and interaction between people is being uncovered because of the development of science and technology. Related research and products have been proposed one after another. From simply lighting up objects, such as lighting festivals, architectural lights, Carving, to enrich life, such as controlling color or brightness of the light bulb through the mobile phone application.
Related studies have shown that devices with interactive lighting capabilities can increase user motivation. There are interactive lighting systems which are designed from the perspective of design and human-computer interaction in public spaces nowadays. However, functions about manipulation of tangible objects have not been systematically integrated into the design of interactive lighting systems. Therefore, this study proposes the LightingCell, which is an interactive OLED lighting system applied to the public space. After observing and summarizing the user behavior of the existing public space (take park as observe field), LightingCell is designed by considering principles of human-computer interaction. LightingCell achieves not only human-machine interaction but also interaction between users via integrating lighting control and tangible user interface.

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