車載資訊系統之文字訊息顯示的辨識度之探討

Abstract

導航系統與資訊顯示系統搭配6~8吋的液晶顯示器，是汽車電子配備的新發展趨勢，但是駕駛作業是一個極需要注意力的作業，唯有多餘的時間，才能夠將注意力轉移到車載資訊系統的使用，而系統所提供的資訊類型與數量繁多，駕駛人必須在複雜的交通環境中接收資訊並作出相對的反應，因此，要能夠發揮系統的功能性並兼顧駕駛的安全性，傳達資訊的顯示介面將有決定性的影響。 本研究根據資訊的顯示需符合可見性（visibility）、可辨性（legibility）與可讀性（readability）的要求，用實徵研究方式，來探討在車內環境中，分別在高度照明與低度照明的情況下，找出最利於中文辨識的LCD背景與文字色彩配置、字型與LCD的裝設位置。 實驗結果顯示，LCD裝設在儀表板中央可使得視線轉移時間最短，可減少分心風險；背景/文字色彩配置在高度照明時，以棕底白字的辨識時間最短，字型以黑體字的辨識時間短於標楷體與細明體；在低度照明時以白底黑字的辨識時間最短，字型以標楷體的辨識時間短於黑體與細明體。

In-vehicle computing system with small LCD is a new tendency of electronic equipment in the car . But driving tasks need a lot of attention . The drivers must receive the information from in-vehicle computing system, then do a response in busy traffic environment . Therefore, in order to elaborate the functions of in-vehicle computing system and keep drive safety , the display interfaces have critical influence . This research based on requirements of visibility、legibility and readability . We study influences of location of LCD、background/word color combination and fonts about Chinese character legibility . The experimental results show that location of LCD on the dashboard makes transference time of the line of sight be shortest . The recognizing time for brown background and white words and Arial Unicode MS font is shortest in high- illumination environment . In low- illumination environment, the shortest recognizing time is white background and black words and Kai font .