A display apparatus for a bicycle has a display panel (3). The display panel (3) includes a plurality of rear speed stage display sections (21-28) for displaying a speed stage of a rear derailleur. The rear speed stage display sections are formed of a plurality of sets of display elements. The display...http://www.google.com.tw/patents/US5621382?utm_source=gb-gplus-share專利 US5621382 - Display apparatus for a bicycle
